UKCloud Limited (“UKC”) and Virtual Infrastructure Group Limited (“VIG”) (together “the Companies”) – in Compulsory Liquidation
On 25 October 2022, the Companies were placed into Liquidation with the Official Receiver appointed as Liquidator and J Robinson and A M Hudson simultaneously appointed as Special Managers to manage the liquidation process on behalf of the Official Receiver.
Further information regarding the Liquidations can be found here: https://www.gov.uk/government/news/virtual-infrastructure-group-limited-and-ukcloud-limited-information-for-creditors-and-interested-parties
Contact details:
For any general queries relating to the Liquidations please email<EMAIL_ADDRESS>For customer related queries please email<EMAIL_ADDRESS>For supplier related queries please email<EMAIL_ADDRESS>High availability on the UKCloud platform
Overview
Delivering high availability and ensuring recovery from disaster are vital elements of any organisation's business continuity plan (BCP). Proper planning is more cost-effective in the long run by reducing response and recovery costs as well as minimizing any disruption.
For general information for what to consider when designing highly-available applications, see our Multi-cloud experts blog for high availability.
This article aims to inform and assist you as you specify your high availability plans. It details measures put in place by UKCloud to protect against failures, how our platform has been designed with service continuity in mind and how we offer extensive capabilities that you can use to protect your business against a disaster.
Platform high-availability features
When designing for high availability and disaster recovery, it's useful to understand how our cloud platform protects against the many sources of failure that may occur.
The following table shows how the UKCloud platform is architected to mitigate against potential failures.
| High-availability consideration | Mitigation |
|---|---|
| Major data centre failure | Multiple sites provide additional locations for you to deploy disaster recovery or always-on availability services |
| Power | Dual power supplies into data centres from different national grid providers N+1 UPS equipment N+1 diesel generators |
| Physical network infrastructure | Fully redundant routers and switches Diversely routed cabling, fibre and ducting |
| Server/device infrastructure | Redundant power supplies and fans Redundant internal disks using RAID; hot-swappable Device/host clustering Virtualised contexts |
| Storage infrastructure | Redundant power supplies and fans Redundant dual storage fabrics Redundant disk configuration (RAID); hot-swappable |
Connectivity
We offer a number of different connectivity options for you to gain access to our services.
| Connectivity option | High-availability considerations |
|---|---|
| Internet | Multiple, redundant, high-speed internet links with DDoS mitigation to protect the platform as a whole. No additional services are required to ensure high availability. We recommend that you couple this with deploying your services into multiple sites to ensure that your services are available via different RIPE IP addresses (ideally on different IP network ranges). |
| PSN/HSCN | Redundant, high-speed connectivity with automatic failover. No additional services are required to ensure high availability. We recommend that you couple this with deploying your services into multiple sites to ensure that your services are available. |
| HybridConnect/CrownConnect | Enables you to bring your own secure connectivity into the UKCloud environment. We provide colocation services for hardware and can assist in the design. We recommend that you deploy an additional HybridConnect service in another site to ensure that you have redundant connectivity into a second site. We recommend that you use routing protocols to enable automated failover. |
Supplementary services for high availability
In addition to the high-availability features provided as-standard on our platform, we also offer the following additional services:
| High-availability consideration | Notes |
|---|---|
| Neustar UltraDNS from UKCloud | Authoritative DNS that enables you to load balance inbound connections to your services and perform health checking. If one site becomes unavailable, users are automatically redirected to an alternative available location. |
| Neustar DDoS Protection from UKCloud | A fully-managed DDoS protection solution backed by an industry-leading Security Operations Team that scrubs your website's malicious traffic - delivering only clean, legitimate traffic to your site. |
| Disaster Recovery as a Service | A powerful, self-service replication and recovery tool that can improve organisational resilience and enable seamless migration of applications between your local VMware or Hyper-V powered data centre and the UKCloud platform. |
| Replicated backup | Enables your services to be backed up and the backup data replicated to another site. |
| Cloud Storage | Enables you to take regular backups of your database data (or transaction data) to meet your specific Recovery Point Objective (RPO). |
| Professional Services | Our multi-cloud experts can assess your cloud environment and help you ensure its availability. |
For information about product-specific availability features, see the appropriate section below.
Application design considerations
If you're designing your application specifically for the cloud, we recommend reviewing the 12-factor cloud application design model.
There are some high-level considerations to think about when deploying to a cloud environment.
| Service | High-availability consideration |
|---|---|
| Web services | Utilise an N+1 model, either with multiple web servers running underneath a load balancer or reverse proxy, or with at least one web server running in hot standby. Also use this approach in conjunction with Neustar UltraDNS from UKCloud to deliver multi-site resilience. |
| Application services | As per web services, utilize an N+1 model. |
| Inter-service messaging | Utilise a resilient message queuing architecture to handle messages between services. This enables messages to be load balanced between sites. It also means that messages are not lost in the event of a server crash and restart. |
| Databases | Every database has a high availability option. We recommend that you adopt an N+1 clustered database model (but avoid shared disk architectures), in conjunction with sharding or asynchronous replication technologies, to create a replica of this database in another location. |
| Data | Make sure you take a copy of your application or database data at appropriate intervals to meet your Recovery Point Objective (RPO) and store the copy somewhere outside your current site. |
UKCloud for Microsoft Azure
In UKCloud for Microsoft Azure, you can use availability sets to spread VMs across multiple fault domains and update domains. In the event of downtime in one domain due to a hardware failure or Planned Maintenance, VMs in the affected domain are restarted in another domain. For more information, see High Availability.
A load balancer spreads incoming requests across multiple VMs, helping with scale and availability. For more information, see How to create a load balancer using the UKCloud Azure Stack Hub portal.
With Azure Site Recovery, you can replicate a VM to a different region for disaster recovery. For more information, see How to deploy an Azure Site Recovery template to Azure Stack Hub using PowerShell.
Use SQL Always On to ensure the availability of SQL server. For more information, see How to deploy an SQL template to Azure Stack Hub using PowerShell.
UKCloud for OpenStack
TrilioVault on UKCloud for OpenStack provides a self-service solution that takes point-in-time backups of workloads and supports multiple recovery options to recover your workloads in case of any outages. For more information, see How to use TrilioVault for self-service backup in OpenStack.
OpenStack Platform 13 (OSP13) provides Load Balancing-as-a-Service (LBaaS) as a native feature. For more information see the OpenStack Using Octavia for Load Balancing-as-a-Service networking guide.
To improve the resilience of your UKCloud for OpenStack applications, you can move resources (for example, instance images and volumes) between the different regions currently offered by UKCloud. For more information, see How to move resources between OpenStack regions.
UKCloud monitors UKCloud for OpenStack at regular intervals, checking for issues with the hardware or software services supporting the service. When a host experiences problems, our engineers take steps to live migrate any instances on the affected host to an alternative one. For information about how this works and how you can control what happens when a host is migrated, see How to manage how your instance recovers from a host failure.
To help your applications cope with variable demand, you can configure Orchestration (HEAT) to automatically add and remove instances as needed. For more information, see Auto Scaling for UKCloud for OpenStack.
UKCloud for Oracle Software
Important
This service is no longer available for sale. The following information is provided to support existing customers of the service only.
In UKCloud for Oracle Software, you can enable HA on a virtual machine so that it can be automatically migrated to a surviving node in the event of a failure. For more information, see How to enable high availability for your Oracle VMs.
If your VM is running an Oracle database and you're using hard partitioning to reduce licensing costs, virtual CPUs are pinned to physical cores and the HA option is not available. In the event of a failure, VMs must be manually migrated to a new host and will require restarting.
To achieve high availability for your Oracle database, you can use Real Application Clusters to share the database across multiple servers. For more information, see RAC on UKCloud for Oracle Software.
UKCloud for Red Hat OpenShift
Each OpenShift cluster is deployed in a single UKCloud region. To achieve region-level resilience, we recommend having a cluster in at least two separate regions, utilising a global load balancer or DNS failover service (such as Neustar UltraDNS from UKCloud) to ensure traffic is redirected should a region or cluster level availability issue occur.
Within each OpenShift cluster deployment there are a number of features that support high availability and resilience:
Each OpenShift cluster is deployed with three control plane nodes responsible for the availability of the cluster API, etcd and other core components.
Ingress traffic comes via a VIP (Virtual IP) shared between the cluster nodes and resilient router pods deployed on the OpenShift infrastructure nodes.
We recommend always having more than one application node deployed in each cluster. If you only have one node for your application containers, a single host failure could affect all applications deployed in the cluster as they'd have nowhere to fail over to within the cluster until the node is recovered and returned to service.
You should also take measures within the configuration of your applications to ensure they run in a resilient fashion. These measures include running applications at a scale of >1 replicas wherever possible (so multiple pods satisfy the needs of inbound requests) and configuring liveness and readiness checks to aid the platform's understanding of any problematic containers. You should apply a Pod Disruption Budget to each multi-pod application to ensure that no outage is seen during cluster updates and other maintenance.
You can obtain additional storage resilience by using OpenShift Data Foundation (formerly known as OpenShift Container Storage). This is an optional install that maintains three copies of all data on the OpenShift-level. It enables multi-attach ("RWX") persistent volumes, which allow compatible persistent applications to run in a resilient fashion.
UKCloud for VMware
UKCloud for VMware provides Snapshot Protection as a protection option for your applications. Snapshot Protection automatically takes an image of your VMs every 24 hours and stores the image outside the core platform for either 14 or 28 days. For more information, see How to manage Snapshot Protection for your VMs.
As an alternative to Snapshot Protection, you could consider Journaling Protection, a powerful self-service protection option, powered by Zerto, that protects your applications by replicating them to another zone. For more information, see the Getting Started Guide for Journaling Protection.
The edge gateway for your VDC provides basic load balancing functionality to help distribute traffic. For more information, see How to configure a load balancer. However, for more complex requirements, you'll need to provide your own third-party virtual load balancer.
Affinity and anti-affinity rules determine whether or not VMs are kept together as they are move around within your environment. If you want your applications to be robust in the event of host failures, you can create anti-affinity rules to make sure that when VMs are moved, they remain spread across multiple hosts. For more information, see How to use affinity and anti‑affinity rules.
For information about the data recovery options available for different use cases, see Virtual machine data recovery options.
IPsec site-to-site VPN provides a secure way to share resources across multiple locations. For more information, see How to configure IPsec VPN.
Alternatively, L2 VPN, available as part of the UKCloud for VMware Advanced Management bundle, enables you to stretch the same Layer 2 broadcast domain over an SSL tunnel across two edge gateways in different sites, meaning that you can extend your data centre across multiple sites and move your workloads seamlessly between them. For more information, see How to configure an L2 VPN.
Cloud Storage
We offer our Cloud Storage service at different service levels dependent on your requirements.
If you select the STANDARD service level, we strongly recommend that you deploy an additional service in a second site that your application can target if one becomes unavailable.
The ENHANCED service level ensures that your data is synchronised across two different sites and that there is a minimum of six effective copies.
Cross Domain Security Zone
Each Cross Domain Security Zone (CDSZ) service is deployed into only one site so we strongly recommend that you deploy an additional walled garden in a second site to provide an additional cross domain solution that your application can target if one becomes available.
We recommend that you implement some form of automated failover solution between your two cross domain solutions. You can deliver this directly within the application, or preferably using some form of load balancing service, such as HAProxy. This enables the application to continue using the cross domain solution services in the event of an issue.
For your walled garden, we recommend that you follow standard N+1 availability architectures to enable high availability for the application, as per any standard cloud deployment.
Private Cloud
By default, the Private Cloud service is deployed to a single site, so we strongly recommend that you use automated site replication and failover to ensure that all data is synced to another site and can still be accessed in the event of a failover.
Secure Remote Access
Each Secure Remote Access (SRA) service is deployed into only one site so we highly recommend that you deploy an additional SRA service that your end users can target if one becomes unavailable.
To facilitate automatic failover of the VPN solution for end users, we recommend the use of a load balancing or DNS failover solution that automatically directs end users to the current functioning endpoint.
For the secure VDC that contains the jump boxes or bastion hosts, we recommend that you follow standard N+1 availability architectures to enable high availability for the application, as per any standard IaaS compute deployment.
Feedback
If you find a problem with this article, click Improve this Doc to make the change yourself or raise an issue in GitHub. If you have an idea for how we could improve any of our services, send an email to feedback@ukcloud.com.


nips nips2002 nips2002-4 nips2002-4-reference knowledge-graph by maker-knowledge-mining
Source: pdf
Author: James D. Park, Adnan Darwiche
Abstract: A new approach to inference in belief networks has been recently proposed, which is based on an algebraic representation of belief networks using multi–linear functions. According to this approach, the key computational question is that of representing multi–linear functions compactly, since inference reduces to a simple process of ev aluating and diﬀerentiating such functions. W e show here that mainstream inference algorithms based on jointrees are a special case of this approach in a v ery precise sense. W e use this result to prov e new properties of jointree algorithms, and then discuss some of its practical and theoretical implications. 1
[1] H. Chan and A. Darwiche. When do numbers really matter? JAIR, 17: 265–287, 2002.
[2] A. Darwiche. A diﬀerential approach to inference in Bay esian networks. In UAI’00, pages 123–132, 2000. T o appear in JACM.
[3] A. Darwiche. A logical approach to factoring belief networks. In KR’02, pages 409– 420, 2002.
[4] A. Darwiche. On the factorization of multi–linear functions. T echnical Report D–128, UCLA, Los Angeles, Ca 90095, 2002.
[5] J. Hoey , R. St-Aubin, A. Hu, and G. Boutilier. SPUDD: Stochastic planning using decision diagrams. In UAI’99, pages 279–288, 1999.
[6] C. Huang and A. Darwiche. Inference in belief networks: A procedural guide. IJAR, 15(3): 225–263, 1996.
[7] M. Iri. Simultaneous computation of functions, partial deriv ativ es and estimates of rounding error. Japan J. Appl. Math., 1:223–252, 1984.
[8] F. V. Jensen, S.L. Lauritzen, and K.G. Olesen. Bay esian updating in recursiv e graphical models by local computation. Comp. Stat. Quart., 4:269–282, 1990.
[9] J. Park. MAP complexity results and approximation methods. In UAI’02, pages 388–396, 2002.
[10] J. Park and A. Darwiche. Approximating MAP using stochastic local search. In UAI’01, pages 403–410, 2001.
[11] J. Park and A. Darwiche. A diﬀerential semantics for jointree algorithms. T echnical Report D–118, UCLA, Los Angeles, Ca 90095, 2001.
[12] G. Rote. Path problems in graphs. Computing Suppl., 7:155–189, 1990.
[13] S. Russell, J. Binder, D. Koller, and K. Kanazawa. Local learning in probabilistic networks with hidden v ariables. In UAI’95, pages 1146–1152, 1995.
[14] P. P. Shenoy and G. Shafer. Propagating belief functions with local computations. IEEE Expert, 1(3):43–52, 1986.
[15] J. v on zur Gathen. Algebraic complexity theory . Ann. Rev. Comp. Sci., 3:317–347, 1988.


{% extends 'registration/base.html' %} {% load crispy_forms_tags i18n %} {% block content %}
The link you are trying to use has either been used or expired.
Request a new password reset link.


The API performs queries based on Constituency name which is passed as a parameter
Syntax when passing parameters
Constinuecy Name
Formats
- Case Insesitive : Kajiado+North OR KAJIADO+NORTH OR Even KaJiAdO+NortH
- Spaces : Use + to respresent spaces ie. Kajiado+North
To get the of Respresentative of a Constituency
GET
https://mweshimiwa.herokuapp.com/v1/representative/Embakasi East
{
"Constituency" : "Embakasi East",
"Name" : "Hon. Babu Owino Paul Ongili",
"Status" : "Success",
"Message" : "Representative of the constituency found"
}
To get the County where a Constituency is located
GET
https://mweshimiwa.herokuapp.com/v1/county/Embakasi East
{
"Constituency" : "Embakasi East",
"County" : "Nairobi",
"Status" : "Success",
"Message" : "County of the constituency found"
}
To get the Party of the representative of a Constituency
GET
https://mweshimiwa.herokuapp.com/v1/party/Embakasi East
{
"Constituency" : "Embakasi East",
"Party" : "Odm",
"Status" : "Success",
"Message" : "Party of the represtative of constituency found"
}


Classes | |
| struct | contains |
| Checks whether T is contained in the list of types. More... | |
| struct | contains_base |
| Checks whether a type deriving from the type T is contained in the list of types. More... | |
| struct | contains_instance |
| Checks whether an instance of the tempalte T is contained in the list of types. More... | |
| struct | get |
| Accesses the N-th (0-based index) type in Ts... More... | |
| struct | get< N, type_list< Ts... > > |
| struct | is_container |
| Checks whether T supports begin() and end() member functions. More... | |
| struct | is_field |
| A trait for detecting whether the type 'T' is a field descriptor. More... | |
| struct | is_function |
| A trait for detecting whether the type 'T' is a function descriptor. More... | |
| struct | is_instance |
| True if T is a template specialization. More... | |
| struct | is_instance_of |
| True if the type U is a template specialization of U. More... | |
| struct | is_member |
| struct | is_reflectable |
| Checks whether the type T can be reflected. More... | |
| struct | remove_qualifiers |
| Removes all reference and cv qualifiers of T. More... | |
| struct | skip |
| Skips the first N (0-based index) types in Ts... (Ts may be a type_list<...> as well). More... | |
| struct | skip< N, type_list< Ts... > > |
Typedefs | |
| template<typename T > | |
| using | remove_qualifiers_t = typename remove_qualifiers< T >::type |
| Removes all reference and cv qualifiers of T. More... | |
| template<size_t N, typename... Ts> | |
| using | get_t = typename get< N, Ts... >::type |
| Accesses the N-th (0-based index) type in Ts... (Ts may be a type_list<...> as well). More... | |
| template<size_t N, typename... Ts> | |
| using | skip_t = typename skip< N, Ts... >::type |
| Skips the first N (0-based index) types in Ts... (Ts may be a type_list<...> as well). More... | |
| template<template< typename > typename Predicate, typename... Ts> | |
| using | filter = typename detail::filter< Predicate >::template apply< Ts... > |
| Filters a type_list according to a predicate template. More... | |
| template<template< typename > typename Mapper, typename... Ts> | |
| using | map = typename detail::map< Mapper >::template apply< Ts... > |
| Maps a type_list according to a predicate template. More... | |
| using refl::trait::filter = typedef typename detail::filter<Predicate>::template apply<Ts...> |
Filters a type_list according to a predicate template.
| using refl::trait::get_t = typedef typename get<N, Ts...>::type |
Accesses the N-th (0-based index) type in Ts... (Ts may be a type_list<...> as well).
| using refl::trait::map = typedef typename detail::map<Mapper>::template apply<Ts...> |
Maps a type_list according to a predicate template.
| using refl::trait::remove_qualifiers_t = typedef typename remove_qualifiers<T>::type |
Removes all reference and cv qualifiers of T.
| using refl::trait::skip_t = typedef typename skip<N, Ts...>::type |
Skips the first N (0-based index) types in Ts... (Ts may be a type_list<...> as well).


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{% extends "sentry/emails/base.html" %} {% load sentry_helpers %} {% block main %}
| Issue | Events | Users |
|---|---|---|
|
{% url 'sentry-group' group.organization.slug group.project.slug group.id as group_link %}
{{ group.title }}
{{ group.message_short }} |
{{ group.event_count }} | {{ group.user_count }} |


Hover Style #1
A wonderful serenity has taken possession of my entire soul, like these sweet mornings of spring which I enjoy with my whole heart.
Read MoreHover Style #1
A wonderful serenity has taken possession of my entire soul, like these sweet mornings of spring which I enjoy with my whole heart.
Read MoreHover Style #1
A wonderful serenity has taken possession of my entire soul, like these sweet mornings of spring which I enjoy with my whole heart.
Read MoreHover Style #1
A wonderful serenity has taken possession of my entire soul, like these sweet mornings of spring which I enjoy with my whole heart.
Read More


Swahili Fashion Week 2019 set for next month
by Joseph MchekadonaTHIS year’s edition of Swahili Fashion Week (SFW) will be held in Dar es Salaam next month, organizers disclosed yesterday.
Mustafa Hassanali, the Swahili Fashion Week founder, said the three-day event which will climax with an awards ceremony, will be held at Serena Hotel in the city from December 6-8.
He disclosed they expect 34 designers from across East Africa and beyond to attend the event.
“Building on the incredible success of the past 11 seasons, Swahili Fashion Week platform is considered to be the leading event in terms of innovation and curation,” he disclosed.
“The SFW hopes to build on this foundation enthusiastically…not only did we show the world that the depth of design talent in Tanzania and Africa is truly amazing, we have now created and support the platform by promoting it globally.”
Hassanali also disclosed that Italian designer, Marta Zampolini, will attend the SFW and a workshop and talk on how to venture into global market.
“There is African proverb ‘if you want to go fast, go alone, if you want to go far go together’, this year’s aim is to reach out to the public to emphasize and promote talents within the fashion industry and beyond,” he said.
He further said the goal of developing the African fashion space remains at the forefront of what they are aiming to do.
He added through the platform and its wide media exposure, the customers in Tanzania, Africa and diaspora at large will see there is an alternative to the imported brands.
Hassanali also disclosed that they have this year added a new category, namely Designer of the Year, which is for designers from upcountry.
He pointed out the inclusion of the new category gears towards encouraging and motivating designers based outside Dar es Salaam.
Italy’s Ambassador to Tanzania, Roberto Mengoni, said he is delighted with Swahili Fashion Week and asked all fashion designers who will showcase their products at the event to make use of the platform for promotion of their brands.
“Designing is a big business, I’m asking all those who will showcase their brands at the Swahili Fashion Week to make use of the platform to make connections with others for the benefit of both,” he said.
This year’s edition of the Swahili Fashion Week and awards is organized by 361 Degrees and hosted by Serena Hotel.
Italy’s Embassy in Tanzania, Grey Goose, Hugo Domingo, Image Masters, Asilas Make Up, Green Telecom and other companies have sponsored the Swahili Fashion Week.


Life With Father (1947)
Grade: 64
"Life With Father" is a comedy with a theme. Men believe that they are in control of their lives and call the shots, when in fact their wives and girlfriends are running the show. The humor comes from the expressions on the men's faces when they realize that something is going on that wasn't planned, and that they are unable to do anything about it.
The film takes place in New York in the late 1800s. Clarence Day (William Powell) is a successful businessman with a doting wife (Irene Dunne) and four sons. The eldest, Clarence Jr, is trying be an adult a bit too soon. The second son, John, is good natured and interested in science. The third son, Whitney, is trying to pass catechism but is more interested in baseball and tormenting the youngest son Harlan.
A running gag in the film is that the maids keep quitting because Powell is impossible to live with. He is so clueless that he blames his wife for this.
Powell and Dunne are affectionate to each other, but there is an undercurrent of tension in their relationship, about who is in control. They mostly quarrel about money and religion. Powell is too practical for religion, and his comments on the subject terrify his wife, who is afraid she will be alone in heaven. Dunne externally obeys, but subtly manipulates her husband.
There is a visit from Cousin Cora and her daughter Mary (A teen-aged Elizabeth Taylor). Cora is a busy-body sterotype, while Taylor is ever-smiling and says nothing but bland pleasantries. Powell tries to tell his wife that they can't stay, and won't go out to dinner, but is outmaneuvered. Taylor and Clarence Jr connect, and the oldest begins to behave unnaturally, trying to impress Taylor with his dreadful violin playing and contrived "adult" conversations.
Father casually mentions that he has never been baptized. This leads to a lengthy battle of wills between Powell and Dunne. Powell is stubborn in his belief that baptism is not important, while Dunne is devastated.
A curious story line is that Jr is given father's suit to wear, and Jr believes that he can't do anything father wouldn't do while wearing his suit. This means he can't embrace Taylor, which leads to an argument between the two leaving Jr bewildered. Powell sees this and gives his son advice about being "firm", advice that is shown useless when Powell is tricked in a subsequent discussion with his wife over the household budget.
Dunne's health declines from worry over Powell's refusal to be baptized. She becomes more sick after being given patent medicine being peddled by sons John and Jr. She only begins to recover after Powell reluctantly agrees to be baptized, a promise he tries to back out of as her health improves.
Dunne goes shopping and buys an expensive ceramic pugdog. Powell is mortified and has her return it. But instead it is exchanged for a new suit for Jr. The next morning, the gap between Powell's expectations and reality comes clear when he learns that he is still out the money for the pugdog, that Cora and Mary are returning for another visit, that his sons have been selling poisonous medicine, and that he is to be taken in an expensive rented carriage out of town to be baptized. Exasperated, all Powell can say is "Gad!" as he submits to his wife's will.
http://members.tripod.com/~Brian_Koller/movies.html
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Have been running emoncms on my new emonpi for several days with no issues. However, I had to reset my wifi and found that everything had stopped updating (Updated column shows as"60 mins ago" in both nodes and feeds). I have tried deleting the feeds and creating new ones but this has not helped. The live values are updating as expected but nothing is being logged. I also note my new feed IDs start after the feed IDs of the ones I deleted.
Any help appreciated
Jez
Re: Problem with emoncms on emonpi
Update - seem to be getting logged data now - but the Updated column is still showing as "60 mins ago" even though logging is at 10s intervals. Could this be something to do with a mismatch between time stamps?
Jez
Re: Problem with emoncms on emonpi
Update - I seem to be getting data now but the Updated column is still showing as "60 mins ago". I am presuming that this is a timestamp mismatch issue. Do I need to reset a time somewhere?
Jez
Re: Problem with emoncms on emonpi
Hello Jez this sounds like an error caused by a timezone on the pi not being correct after the wifi reset. The easiest way to force a reset is to reboot the raspberrypi, alternatively its possible to login via SSH and run "sudo service ntp restart", We are planning to add a script in there to keep updating the time automatically to avoid this issue
Re: Problem with emoncms on emonpi
Trystan - I have tried rebooting the emonPi - but the Pi time stamp is still an hour behind.
Jez
Re: Problem with emoncms on emonpi
It would help to know where the error is creeping in, if you go to the emonhub tab and view the logs the time and date of each message should reflect local timezone whilst the timestamps within the messages are UTC times displayed as values such as<PHONE_NUMBER> are seconds since 1/1/1970 00:00:00 and and can be converted using sites such as http://www.epochconverter.com/ .
if you are able to ssh in to the pi the date command will confirm the current time setting too.
Paul
Re: Problem with emoncms on emonpi
Paul
Time and date of emonhub messages and timestamps within the messages are the same - and are 1 hour behind actual time in BST.
Jez
Re: Problem with emoncms on emonpi
Okay so UTC is tracking correctly and the Pi's OS is running in the default UTC timezone, which raises the question what makes emoncms believe the data is an hour old when it's reference should be the same time?
I'm guessing you have set the timezone as +1hr in emoncms, if you have then I think emoncms is either assuming the timestamps received are localtime and removing an hour or the +1 hr timezone adjustment is being used to alter UTC rather than localtime.
Can you try removing the +1hr ? does the "60mins ago" change to a number of seconds value?
You could also try changing the OS local timezone sudo dpkg-reconfigure tzdata selecting Europe then London should give you this confirmation
Then emonhub's logs should show the local time on the left, I don't expect this to impact emoncms though as it appears emoncms doesn't use the Pi's localtime but it would be good to confirm that.
Paul
Re: Problem with emoncms on emonpi
Paul
The timezone in "My Profile" is set as UTC +0:00, so I don't think I have set the timezone as +1hr. I have just changed it to -1hr to see what happens but it did not have any effect on the update times - these are still 60mins.
Jez
Re: Problem with emoncms on emonpi
Well that's bazaar! and a bit beyond my limited knowledge of emoncms, I'm afraid.
Paul
Re: Problem with emoncms on emonpi
Update - after a few minutes I have now seen a response to the change in timezone to UTC -1:00. Nodes and Feeds now show they are being updated by a few seconds as was the case when I first set up the system. The solar graphing app is also looking OK. Final solution is clearly to reset the time on the Pi as suggested by Trystan and reset the timezone back to UTC 0:00. I will live with my temporary fix for now and wait for Trystan's new script to update the Pi time.
Thanks for the help
Jez
Re: Problem with emoncms on emonpi
This is a separate issue, The Pi's time appears correct as that is used directly in the emonhub.log. The issue Trystan refers to only occurs if there is no internet connection at bootup AND the retained copy is not accessible due to it's location not being mounted at that time.
see http://openenergymonitor.org/emon/node/5877 for more info.
Paul


Because the Vietnamese alphabet uses a complex system of diacritical marks, Telex requires the user to type in a base letter, followed by one or two characters that represent the diacritical marks:
| Character | Key pressed | Sample input | Sample output |
|---|---|---|---|
| ă | aw | trangw | trăng |
| â | aa | cana | cân |
| đ | dd | ddaau | đâu |
| ê | ee | ddeem | đêm |
| ô | oo | nhoo | nhô |
| ơ | ow | mow | mơ |
| ư | uw | tuw | tư |
To write the pair of keys as two distinct characters, the second character has to be repeated. For example, the Vietnamese word cải xoong must be entered as cari xooong
rather than cari xoong
(*cải xông).
| Tone | Keys added to syllable | Sample input | Sample output |
|---|---|---|---|
| Ngang (level) | nothing | ngang | ngang |
| Huyền (falling) | f | huyeenf | huyền |
| Sắc (rising) | s | sawcs | sắc |
| Hỏi (dipping-rising) | r | hoir | hỏi |
| Ngã (rising glottalized) | x | ngax | ngã |
| Nặng (falling glottalized) | j | nawngj | nặng |
If more than one tone marking key is pressed, the last one will be used. For example, typing asf
will return "à". To write a tone marking key as a normal character, one has to press it twice: her
becomes hẻ
, while herr
becomes her
.
Important Notice: This keyboard uses Quy tắc đặt dấu thanh kiểu cũ (òa, òe, úy) by default.
You can turn on Quy tắc đặt dấu thanh kiểu mới (oà, oè, uý) in Keyman → Configuration → Keyboard Layouts → Vietnamese Telex → Keyboard Options
© 2022 Mike Vo<EMAIL_ADDRESS>| miketvo.com


Upwelling Season
Strong winter upwelling preceded an average to above-average upwelling season, Good nutrient supply to the base of the food web, Less compression of cool pelagic habitat along coastline.


Yu Yi
The Yu Yi Productions executive team are very passionate and happy about bringing this film to you. They are all talented individuals working together to create a film that is both visually and aurally stimulating while asking the viewer to question their reliance on memory and identity.


Terms and Conditions of Use |
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By using this proxy you agree to the Code Diaries Proxy terms and conditions.
These conditions are implicit in every other proxy on the net. But we want to re-iterate them for your safety and ours
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Some small code snippets illustrating basic parsing operations can be examined via viewcvs:
There are also some nice open source projects built on kXML that illustrate how to use the parser:
If you are using kXML in your own project (open source or not), please let us know, so we can link to it here.


--- layout: post title: Storyboards restaurant date: '2017-09-07T11:30:35+02:00' categories: - Storyboards picture_url: https://film-Storyboards.tumblr.com/post/165084301557/Storyboards-restaurant ---


Coding time tonight diverted to debugging a build breaking issue between Rubygems, new Bundler and JRuby with frozen strings enabled. Fun? 😬
1/22/2017, 10:01:42 PM
Favs: 2
Retweets: 0
link--- layout: tweet ---
Coding time tonight diverted to debugging a build breaking issue between Rubygems, new Bundler and JRuby with frozen strings enabled. Fun? 😬
1/22/2017, 10:01:42 PM
Favs: 2
Retweets: 0
linkOn the upside iPhone just tried to autocorrect "breaking" to "bear king" which is way cooler. 🐻 👑
1/22/2017, 10:02:56 PM
Favs: 1
Retweets: 0
link


A C D E G I L M N O P R S T U
All Classes All Packages
All Classes All Packages
All Classes All Packages
S
- Server - Class in comp1206.sushi.server
- Server() - Constructor for class comp1206.sushi.server.Server
- ServerApplication - Class in comp1206.sushi
-
YOU ARE NOT ALLOWED TO MODIFY THIS CLASS IN ANY WAY Any initialisation and changes you need to make can be done in the constructor for the Server
- ServerApplication() - Constructor for class comp1206.sushi.ServerApplication
- ServerInterface - Interface in comp1206.sushi.server
- ServerInterface.UnableToDeleteException - Exception in comp1206.sushi.server
-
Throw an unable to delete exception with a given message if a deletion cannot occur
- ServerWindow - Class in comp1206.sushi.server
-
Provides the Sushi Server user interface You should not need to modify this class if your implementation of the interface is correct.
- ServerWindow(ServerInterface) - Constructor for class comp1206.sushi.server.ServerWindow
-
Create a new server window with all associated panels
- ServerWindow.ConfigurationPanel - Class in comp1206.sushi.server
- ServerWindow.DualPanel<T> - Class in comp1206.sushi.server
-
A dual panel display which shows data at the top and allows adding new models at the bottom
- ServerWindow.EditorPanel<T> - Class in comp1206.sushi.server
-
Editor panel which displays a set of captions and fields
- ServerWindow.EditorPanel.ComboModel - Class in comp1206.sushi.server
-
Provides the model to link a combobox to a datasource given backend
- ServerWindow.IngredientFrame - Class in comp1206.sushi.server
-
Window to edit ingredient restocking levels
- ServerWindow.IngredientFrame.IngredientEditor - Class in comp1206.sushi.server
-
Ingredient editor panel which provides the fields for editing the restocking levels and amounts
- ServerWindow.RecipeFrame - Class in comp1206.sushi.server
-
Recipe editor frame, which allows editing the recipe components and restocking amounts
- ServerWindow.RecipeFrame.IngredientList - Class in comp1206.sushi.server
-
Provide a list of all ingredients to support the recipe editor
- ServerWindow.ResultsPanel<T> - Class in comp1206.sushi.server
-
Display a panel of results using a JTable linked to a datasource and particular class Public getters of that model will become automatic visible columns.
- ServerWindow.ResultsTable<T> - Class in comp1206.sushi.server
-
Provides the results model to drive a JTable based on the provided data sources
- setBattery(Number) - Method in class comp1206.sushi.common.Drone
- setCapacity(Number) - Method in class comp1206.sushi.common.Drone
- setColumns() - Method in class comp1206.sushi.server.ServerWindow.ResultsPanel
- setColumns(String[], HashMap<String, Supplier<Map<? extends Model, Object>>>, HashMap<String, Function<Model, Object>>) - Method in class comp1206.sushi.client.ClientWindow.ResultsTable
-
Set the columns to be displayed, including additional closure-based columns
- setColumns(String[], HashMap<String, Supplier<Map<? extends Model, Object>>>, HashMap<String, Function<Model, Object>>) - Method in class comp1206.sushi.server.ServerWindow.ResultsTable
-
Set the columns, providing extra properties as needed
- setDescription(String) - Method in class comp1206.sushi.common.Dish
- setDestination(Postcode) - Method in class comp1206.sushi.common.Drone
- setFatigue(Number) - Method in class comp1206.sushi.common.Staff
- setLocation(Postcode) - Method in class comp1206.sushi.common.Restaurant
- setName(String) - Method in class comp1206.sushi.common.Dish
- setName(String) - Method in class comp1206.sushi.common.Ingredient
- setName(String) - Method in class comp1206.sushi.common.Model
-
Set the name of a model.
- setName(String) - Method in class comp1206.sushi.common.Postcode
- setName(String) - Method in class comp1206.sushi.common.Restaurant
- setName(String) - Method in class comp1206.sushi.common.Staff
- setName(String) - Method in class comp1206.sushi.common.Supplier
- setName(String) - Method in class comp1206.sushi.common.User
- setPostcode(Postcode) - Method in class comp1206.sushi.common.Supplier
- setPostcode(Postcode) - Method in class comp1206.sushi.common.User
- setPrice(Number) - Method in class comp1206.sushi.common.Dish
- setProgress(Number) - Method in class comp1206.sushi.common.Drone
- setRecipe(Dish, Map<Ingredient, Number>) - Method in class comp1206.sushi.server.Server
- setRecipe(Dish, Map<Ingredient, Number>) - Method in interface comp1206.sushi.server.ServerInterface
-
Set the recipe for a given dish to the suppliest map of ingredients and quantity numbers
- setRecipe(Map<Ingredient, Number>) - Method in class comp1206.sushi.common.Dish
- setRestockAmount(Number) - Method in class comp1206.sushi.common.Dish
- setRestockAmount(Number) - Method in class comp1206.sushi.common.Ingredient
- setRestockingDishesEnabled(boolean) - Method in class comp1206.sushi.server.Server
- setRestockingDishesEnabled(boolean) - Method in interface comp1206.sushi.server.ServerInterface
-
Enable or disable automatic restocking of dishes.
- setRestockingIngredientsEnabled(boolean) - Method in class comp1206.sushi.server.Server
- setRestockingIngredientsEnabled(boolean) - Method in interface comp1206.sushi.server.ServerInterface
-
Enable or disable automatic restocking of ingredients.
- setRestockLevels(Dish, Number, Number) - Method in class comp1206.sushi.server.Server
- setRestockLevels(Dish, Number, Number) - Method in interface comp1206.sushi.server.ServerInterface
-
Set restocking levels for the given dish
- setRestockLevels(Ingredient, Number, Number) - Method in class comp1206.sushi.server.Server
- setRestockLevels(Ingredient, Number, Number) - Method in interface comp1206.sushi.server.ServerInterface
-
Set the restock levels of the given ingredient
- setRestockThreshold(Number) - Method in class comp1206.sushi.common.Dish
- setRestockThreshold(Number) - Method in class comp1206.sushi.common.Ingredient
- setSelectedItem(Object) - Method in class comp1206.sushi.client.ClientWindow.LoginWindow.RegisterPanel.ComboModel
- setSelectedItem(Object) - Method in class comp1206.sushi.server.ServerWindow.EditorPanel.ComboModel
- setSource(Postcode) - Method in class comp1206.sushi.common.Drone
- setSpeed(Number) - Method in class comp1206.sushi.common.Drone
- setStatus(String) - Method in class comp1206.sushi.common.Drone
- setStatus(String) - Method in class comp1206.sushi.common.Order
- setStatus(String) - Method in class comp1206.sushi.common.Staff
- setStock(Dish, Number) - Method in class comp1206.sushi.server.Server
- setStock(Dish, Number) - Method in interface comp1206.sushi.server.ServerInterface
-
Set the current stock of a given dish directly
- setStock(Ingredient, Number) - Method in class comp1206.sushi.server.Server
- setStock(Ingredient, Number) - Method in interface comp1206.sushi.server.ServerInterface
-
Set the current stock of a given ingredient directly
- setSuccess(Consumer<User>) - Method in class comp1206.sushi.client.ClientWindow.LoginWindow
-
Set the function to be called when login is successful
- setSupplier(Supplier) - Method in class comp1206.sushi.common.Ingredient
- setUnit(String) - Method in class comp1206.sushi.common.Ingredient
- setWeight(Number) - Method in class comp1206.sushi.common.Ingredient
- staff - Variable in class comp1206.sushi.server.Server
- Staff - Class in comp1206.sushi.common
- Staff(String) - Constructor for class comp1206.sushi.common.Staff
- startTimer() - Method in class comp1206.sushi.client.ClientWindow
-
Start the background timer to update on a regular interval
- startTimer() - Method in class comp1206.sushi.server.ServerWindow
-
Start the timer which updates the user interface based on the given interval to update all panels
- Supplier - Class in comp1206.sushi.common
- Supplier(String, Postcode) - Constructor for class comp1206.sushi.common.Supplier
- suppliers - Variable in class comp1206.sushi.server.Server
All Classes All Packages


A framework for performing simulations such as those common in methodological statistics papers. The design principles of this package are described in greater depth in Bien, J. (2016) "The simulator: An Engine to Streamline Simulations," which is available at <http://faculty.bscb.cornell.edu/~bien/simulator.pdf>.
| Version: | 0.2.0 |
| Depends: | R (≥ 3.2.0) |
| Imports: | methods, graphics, grDevices, stats, utils, magrittr |
| Suggests: | digest, ggplot2, knitr, rmarkdown, testthat, glmnet, mvtnorm |
| Published: | 2016-07-12 |
| Author: | Jacob Bien [aut, cre] |
| Maintainer: | Jacob Bien <jbien at cornell.edu> |
| BugReports: | http://github.com/jacobbien/simulator/issues |
| License: | GPL-3 |
| URL: | http://github.com/jacobbien/simulator |
| NeedsCompilation: | no |
| Citation: | simulator citation info |
| Materials: | README |
| CRAN checks: | simulator results |
| Reference manual: | simulator.pdf |
| Vignettes: |
The Elastic Net with the Simulator Benjamini-Hochberg Procedure with the Simulator Getting Started with the Simulator James-Stein with the Simulator The Lasso with the Simulator |
| Package source: | simulator_0.2.0.tar.gz |
| Windows binaries: | r-devel: simulator_0.2.0.zip, r-release: simulator_0.2.0.zip, r-oldrel: simulator_0.2.0.zip |
| OS X binaries: | r-release: simulator_0.2.0.tgz, r-oldrel: simulator_0.2.0.tgz |
Please use the canonical form https://CRAN.R-project.org/package=simulator to link to this page.


Line ChartThis is a line chart created with Chart.js
Line ChartThis is a line chart created with Chart.js
Bar ChartThis is a bar chart created with Chart.js
Bar ChartThis is a bar chart created with Chart.js
Pie ChartThis is a pie chart created with Chart.js
Pie ChartThis is a pie chart created with Chart.js
Doughnut ChartThis is a oughnut area chart created with Chart.js
Doughnut ChartThis is a oughnut area chart created with Chart.js


{% block content_title %}{% endblock %}
Recent CTFs: {% for ctf in ctfs %}
{{ ctf }}
, {% endfor %}
{% block content %}{% endblock %}
GitHub
⋅
YouTube
⋅
Twitter
⋅ u/DevJonPizza ⋅ jon@jon.network


SHOOT TO KILL (director: Lester William Berke; screenwriter: Edwin V. Westrate; cinematographer: Ben Kline; editor: Arthur A. Brooks; cast: Russell Wade (George Mitchell), Susan Walters (Marian Langdon), Edmund MacDonald (Larry Dale), Douglas Blackley (Dixie Logan), Vince Barnett (Charlie), Nestor Paiva (Gus Miller), Charles Trowbridge (John Forsythe), Harry Brown (Forman), Harry V. Cheshire (Blake), Ted Hecht (Collins), Robert Riordan (Carter); Runtime: 64; Lippert Films/Screen Guild; 1947)
Reviewed by Dennis Schwartz
A fast-paced film noir about corruption and double-crosses, that has a lot of plot twists and a nifty surprise ending. The film opens with a car crash involving escaped murderer Dixie Logan (Blackley), Assistant District Attorney Larry Dale (MacDonald) and his wife Marian Langdon (Walters). The two men die, but Marian is brought to the hospital in critical condition with a head injury and confesses to reporter George Mitchell (Wade) what really happened. The film is told in flashback until Marian finishes her story.
The flashback opens as Marian appears for the advertised job as secretary to the assistant district attorney and is spotted by Mitch, who is in the office ahead of her to see Dale about a news story. By accident he pushes the button on the intercom and overhears an argument between District Attorney Forsythe (Trowbridge) and Dale. When Marian enters, Mitch takes one look at the pretty lady and is attracted to her. He takes her out to lunch and talks Dale into hiring her.
When asked why she wants to work for Dale she tells Mitch that she admires the job he did in convicting Dixie Logan, who received a 20 year jail sentence. She disregards that Dixie claimed he was framed and would get Dale for what he did to him; instead, she agrees with Larry who says, all felons say that about their prosecutors.
It soon becomes apparent that Dale is working with underworld kingpin Gus Miller (Paiva), but Marian plays like she doesn't notice it. One day Miller comes to see Dale in his office and he notices the janitor (Barnett) is one of Dixie Logan's boys. He has his men throw him down the elevator shaft in the court building.
Miller suspects something fishy about the new secretary and asks Larry to fire her, which Larry is reluctant to do but agrees to anyway. When back in his office, he notices it was bugged. The janitor bugged it before his sudden death. But he thinks Marian did it and decides to marry her so she can't testify against him. After the justice of the peace performs the marriage ceremony one of Miller's men tries to shoot her as she steps outside, but misses. Back at home she tells Larry she knows how crooked he is and that the shot was meant for her, but she will work with him to be elected district attorney if he smashes the three gangs (Miller, Forman, and Blake) that have a hold over him. But he must promise this power-hungry woman that he does everything by the book (no killings) from now on. She also tells him that she knows that he and the underworld gangs framed the gangster Logan so that they could control the city.
Larry comes up with a diabolical plan to play one gang against the other. One of his first problems is that the two phony witnesses (Hecht and Riordan) against Dixie weren't fully paid off for their work and now must be rubbed out. But Dixie intercepts them first and gets them to confess on paper that they lied on the witness stand and that it was the three gang leaders who paid him. When they leave the apartment, Miller's men have orders to 'shoot to kill' the phony witnesses. Meanwhile, the omnipresent snoop Mitch overheard the witnesses talking with Dixie and knows Dixie didn't shoot them because he was talking with him when they were shot. He tries to talk Dixie into going to the police with that confession and clearing his name, but Dixie has other ideas and overcomes the reporter and escapes with the confession.
Warning: spoiler to follow.
Back in Larry's office all the confusion gets cleared up, as Dixie appears. It turns out that Marian is his wife and he was in disguise as the justice of the peace, so that the marriage was a bogus one. But when he finds out that Marian mailed all the evidence against Larry to the honest D.A. Forsyth, he slaps her and tells her he could have worked a deal with Dale to run the city. She cries out: "You're no good," as the two criminals take her in the car to kill her. That was the car that crashed before the flashback began.
Mitch talks the D.A. into throwing out the confession she sent him and she comes out of it as clean as a whistle, as the reporter is still smitten over her.
The film was cheaply made and the acting didn't distinguish itself. But the story had a lot of snap to it. It's not a bad watch, but lovers of film noir should like it more than others.
Two of the film's stars, Douglas Blackley and Susan Walters, changed their professional names after the film to Robert Kent and Luana Walters.
REVIEWED ON 4/29/2001 GRADE: C
Dennis Schwartz: "Ozus' World Movie Reviews"
http://www.sover.net/~ozus
<EMAIL_ADDRESS>© ALL RIGHTS RESERVED DENNIS SCHWARTZ
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


HummingKitRequestFactory
public class HummingKitRequestFactory
Undocumented
-
Initilazation of HummingKitRequestFactory object.
Declaration
Swift
public init(developerToken: DeveloperToken, userToken: UserToken)
Parameters
developerToken
Developer Token provided by the developer who use this package, required for authentication.
userToken
User Token fetched by device when app runs for the first time, required for authentication
-
Generates “Fetch a User’s Storefront” URL request
Declaration
Swift
public func createGetUserStorefrontRequest() -> URLRequest
-
Generates “Fetch a single storefront by using its identifier” URL request
Declaration
Swift
public func createGetAStorefrontRequest(storefrontID: String) -> URLRequest
Parameters
storefrontID
The identifier (an ISO 3166 alpha-2 country code) for the storefront you want to fetch.
-
Generates “Fetch one or more storefronts by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleStorefrontsRequest(storefrontIDs: [String]) -> URLRequest
Parameters
storefrontIDs
An array of the identifiers (ISO 3166 alpha-2 country codes) for the storefronts you want to fetch.
-
Generates “Fetch all the storefronts in alphabetical order” URL request
Declaration
Swift
public func createGetAllStorefrontsRequest() -> URLRequest
-
Generates “Add a catalog resource to a user’s iCloud Music Library” URL request
Declaration
Swift
public func createAddResourcesToLibraryRequest(playlistsIDs: [String], albumsIDs: [String], songsIDs: [String], musicVideosIDs: [String]) -> URLRequest
Parameters
playlistsIDs
an array of unique catalog identifiers for targeted playlists
albumsIDs
an array of unique catalog identifiers for targeted albums
songsIDs
an array of unique catalog identifiers for targeted songs
musicVideosIDs
an array of unique catalog identifiers for targeted music videos
Return Value
the URL request for adding catalog resources to a user’s iCloud Music Library
-
Generates “Fetch an album by using its identifier” URL request
Declaration
Swift
public func createGetACatalogAlbumRequest(storefront: String, albumID: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
albumID
The unique identifier for the album.
-
Generates “Fetch one or more albums by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleCatalogAlbumsRequest(storefront: String, albumIDs: [String]) throws -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
albumIDs
The unique identifiers for the albums. The maximum fetch limit is 100.
-
Generates “Fetch an album’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetACatalogAlbumRelationshipRequest(storefront: String, albumID: String, relationship: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
albumID
The unique identifier for the album.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch a library album by using its identifier” URL request
Declaration
Swift
public func createGetALibraryAlbumRequest(albumID: String) -> URLRequest
Parameters
albumID
The unique identifier for the album.
-
Generates “Fetch an album’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetALibraryAlbumRelationshipRequest(albumID: String, relationship: String) -> URLRequest
Parameters
albumID
The unique identifier for the album.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch one or more library albums by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleLibraryAlbumsRequest(albumIDs: [String]) throws -> URLRequest
Parameters
albumIDs
The unique identifiers for the albums. The maximum fetch limit is 100.
-
Generates “Fetch all the library albums in alphabetical order” URL request
Throws
HummingKitRequestComposingError.invalidArgument if arguments contain cahracters other than digits, or .exceedMaxFetchLimit if limit is set to above 100.Declaration
Swift
public func createGetAllLibraryAlbumsRequest(limit: String = "25", offset: String = "0") throws -> URLRequest
Parameters
limit
The maximum limit count of library albums to be expected in response, default to 25, maximum at 100.
offset
The offset for resources of current request (Pagination), default to 0.
Return Value
The “Fetch all the library albums in alphabetical order” URL request.
-
Generates “Fetch an artist by using the artist’s identifier” URL request
Declaration
Swift
public func createGetACatalogArtistRequest(storefront: String, artistID: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
artistID
The unique identifier for the artist.
-
Generates “Fetch one or more artists by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleCatalogArtistsRequest(storefront: String, artistIDs: [String]) throws -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
artistIDs
The unique identifiers for the artists. The maximum fetch limit is 25.
-
Generates “Fetch an artist’s relationship by using the artist’s identifier” URL request
Declaration
Swift
public func createGetACatalogArtistRelationshipRequest(storefront: String, artistID: String, relationship: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
artistID
The unique identifier for the artist.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch a library artist by using its identifier” URL request
Declaration
Swift
public func createGetALibraryArtistRequest(artistID: String) -> URLRequest
Parameters
artistID
The unique identifier for the artist.
-
Generates “Fetch all the library artists in alphabetical order” URL request
Throws
HummingKitRequestComposingError.invalidArgument if arguments contain cahracters other than digits, or .exceedMaxFetchLimit if limit is set to above 100.Declaration
Swift
public func createGetAllLibraryArtistsRequest(limit: String = "25", offset: String = "0") throws -> URLRequest
Parameters
limit
The maximum limit count of library artists to be expected in response, default to 25, maximum at 100.
offset
The offset for resources of current request (Pagination), default to 0.
Return Value
The “Fetch all the library artists in alphabetical order” URL request
-
Generates “Fetch one or more library artists by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleLibraryArtistsRequest(artistIDs: [String]) throws -> URLRequest
Parameters
artistIDs
The unique identifiers for the albums. The maximum fetch limit is 25.
-
Generates “Fetch a library artist’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetALibraryArtistRelationshipRequest(artistID: String, relationship: String) -> URLRequest
Parameters
artistID
The unique identifier for the artist.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch a song by using its identifier” URL request
Declaration
Swift
public func createGetACatalogSongRequest(storefront: String, songID: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
songID
The unique identifier for the song.
-
Generates “Fetch one or more songs by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleCatalogSongsRequest(storefront: String, songIDs: [String]) throws -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
songIDs
An array of catalogIDs for targeted catalog songs. The maximum fetch limit is 300.
-
Generates “Fetch an song’s relationship by using the song’s identifier” URL request
Declaration
Swift
public func createGetACatalogSongRelationshipRequest(storefront: String, songID: String, relationship: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
songID
The unique identifier for the song.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch a library song by using its identifier” URL request
Declaration
Swift
public func createGetALibrarySongRequest(songID: String) -> URLRequest
Parameters
songID
The unique identifier for the song.
-
Generates “Fetch all the library songs in alphabetical order” URL request.
Throws
HummingKitRequestComposingError.invalidArgument if arguments contain cahracters other than digits, or .exceedMaxFetchLimit if limit is set to above 100.Declaration
Swift
public func createGetAllLibrarySongsRequest(limit: String = "25", offset: String = "0") throws -> URLRequest
Parameters
limit
The maximum limit count of library songs to be expected in response, default to 25, maximum at 100.
offset
The offset for resources of current request (Pagination), default to 0.
Return Value
The “Fetch all the library songs in alphabetical order” URL request.
-
Generates “Fetch one or more library songs by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleLibrarySongsRequest(songIDs: [String]) throws -> URLRequest
Parameters
songIDs
An array of catalogIDs for targeted catalog songs. The maximum fetch limit is 300.
-
Generates “Fetch a library song’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetALibrarySongRelationshipRequest(songID: String, relationship: String) -> URLRequest
Parameters
songID
The unique identifier for the song.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch a music video by using its identifier” URL request
Declaration
Swift
public func createGetACatalogMVRequest(storefront: String, mvID: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
mvID
The unique identifier for the mv.
-
Generates “Fetch a music video’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetACatalogMVRelationshipRequest(storefront: String, mvID: String, relationship: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
mvID
The unique identifier for the mv.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch one or more music videos by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleCatalogMVsRequest(storefront: String, mvIDs: [String]) throws -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
mvIDs
An array of catalogIDs for targeted catalog mvs. The maximum fetch limit is 100.
-
Generates “Fetch a library music video by using its identifier” URL request
Declaration
Swift
public func createGetALibraryMVRequest(mvID: String) -> URLRequest
Parameters
mvID
The unique identifier for the mv.
-
Generates “Fetch a library music video’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetALibraryMVRelationshipRequest(mvID: String, relationship: String) -> URLRequest
Parameters
mvID
The unique identifier for the mv.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch one or more library music videos by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleLibraryMVsRequest(mvIDs: [String]) throws -> URLRequest
Parameters
mvIDs
The unique identifiers for the mvs. The maximum fetch limit is 100.
-
Generates “Fetch all the library music videos in alphabetical order” URL request.
Throws
HummingKitRequestComposingError.invalidArgument if arguments contain cahracters other than digits, or .exceedMaxFetchLimit if limit is set to above 100.Declaration
Swift
public func createGetAllLibraryMVsRequest(limit: String = "25", offset: String = "0") throws -> URLRequest
Parameters
limit
The maximum limit count of library music videos to be expected in response, default to 25, maximum at 100.
offset
The offset for resources of current request (Pagination), default to 0.
Return Value
The “Fetch all the library music videos in alphabetical order” URL request.
-
Generates “Fetch a playlist by using its identifier” URL request
Declaration
Swift
public func createGetACatalogPlaylistRequest(storefront: String, playlistID: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
playlistID
The unique identifier for the playlist.
-
Generates “Fetch a playlist’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetACatalogPlaylistRelationshipRequest(storefront: String, playlistID: String, relationship: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
playlistID
The unique identifier for the playlist.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch one or more playlists by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleCatalogPlaylistsRequest(storefront: String, playlistIDs: [String]) throws -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
playlistIDs
An array of catalogIDs for targeted catalog playlists. The maximum fetch limit is 25.
-
Generates “Fetch a library playlist by using its identifier” URL request
Declaration
Swift
public func createGetALibraryPlaylistRequest(playlistID: String) -> URLRequest
Parameters
playlistID
The unique identifier for the playlist.
-
Generates “Fetch a library playlist’s relationship by using its identifier” URL request
Declaration
Swift
public func createGetALibraryPlaylistRelationshipRequest(playlistID: String, relationship: String) -> URLRequest
Parameters
playlistID
The unique identifier for the playlist.
relationship
The name of the relationship you want to fetch for this resource.
-
Generates “Fetch one or more library music videos by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleLibraryPlaylistsRequest(playlistIDs: [String]) throws -> URLRequest
Parameters
playlistIDs
An array of catalogIDs for targeted catalog playlists. The maximum fetch limit is 25.
-
Generates “Fetch all the library playlists in alphabetical order” URL request.
Throws
HummingKitRequestComposingError.invalidArgument if arguments contain cahracters other than digits, or .exceedMaxFetchLimit if limit is set to above 100.Declaration
Swift
public func createGetAllLibraryPlaylistsRequest(limit: String = "25", offset: String = "0") throws -> URLRequest
Parameters
limit
The maximum limit count of library playlists to be expected in response, default to 25, maximum at 100.
offset
The offset for resources of current request (Pagination), default to 0.
Return Value
The “Fetch all the library playlists in alphabetical order” URL request.
-
Generates “Create a new playlist in a user’s library” URL request
Declaration
Swift
public func createCreateANewLibraryPlaylistRequest(name: String, description: String, songsIDs: [String]) -> URLRequest
Parameters
name
The name of playlist to be created.
description
The description of the playlist to be created.
songsIDs
An array of identifiers of songs in the new playlist.
-
Generates “Add Tracks to a Library Playlist” URL request
Declaration
Swift
public func createAddTracksToAPlaylistRequest(playlistID: String, songsIDs: [String]) -> URLRequest
Parameters
playlistID
The unique identifier for the playlist.
songIDs
An array of identifiers of songs to be added to playlist.
-
Generates “Fetch a station by using its identifier” URL request
Declaration
Swift
public func createGetACatalogStationRequest(storefront: String, stationID: String) -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
stationID
The unique identifier for the station.
-
Generates “Fetch one or more stations by using their identifiers” URL request
Declaration
Swift
public func createGetMultipleCatalogStationsRequest(storefront: String, stationIDs: [String]) throws -> URLRequest
Parameters
storefront
An identifier (ISO 3166 alpha-2 country codes) of the storefront you want to perform this request in.
stationIDs
An array of catalogIDs for targeted catalog stations. The maximum fetch limit is 100.
-
Function for generating “Search for Catalog Resources” URL request
Declaration
Swift
public func createSearchRequest(storefront: String, term: String) -> URLRequest
Parameters
storefront
the expected Apple Music storefront for request to happen, usually the same as user’s Apple Music account storefront
term
the user entered text for search, “ ” -> “+” character replacement is handled
Return Value
the URL request for searching catalog resources(by using a query) from Apple Music server
-
Function for generating “Get Recently Played Resources” URL request
Declaration
Swift
public func createGetRecentlyPlayedRequest() -> URLRequest
Return Value
the URL request for fetching the recently played resources for the user


October 14th Notes
IP: Forwarding and Addressing the Internet
- Two versions of the internet: IPv4 which is currently used and IPv6 which is proposed to replace the current version
IPv4 datagram format
- Version Number: 4 bits that specify the IP protocol version of the datagram
- Header Length: 4 bits that determine where in the IP datagram the data begins
- Type of service: Included in the IPv4 header to allow different types of IP datagrams to be distinguished from each other
- Datagram Length: 16 bits long. Used to measure the total length of the datagram in bytes
- Identifier, flags, fragmentation offset: Responsible for IP fragmentation
- Time-to-live: Ensures that datagrams do not circulate in the network forever
- Protocol: This field comes into effect once the datagram reaches its destination. It is used to specify which transport layer protocol to which the data portion of this IP datagram should be passed
- Header checksum: It aids routers detect bit errors in the received IP datagram
- Source and destination IP address: Used to communicate between the source and destination
- Options: Used to extend the IP header to be extended
- Data (payload): the data field of the IP datagram contains the transport-layer segment (TCP or UDP) to be delivered to the destination
IP Datagram Fragmentation
- Maximum Transmission Unit is the maximum amount of data that a link layer frame can carry
- When an IP datagram is split and encapsulated into smaller IP datagrams they are called fragment
IPv4 Addressing
- The boundary between the host and the physical link is called an interface. This term is also used to define the boundary between the router and any one of its links.
- Since every host and router is capable of sending and receiving IP datagrams, IP requires each host and router interface to have its own IP address.
- IP addresses are written in dotted-decimal notation in which each byte of the address is written in its decimal form and is separated by a period (dot) from other bytes in the address
- A subnet is defined as a smaller identifable part of a larger network
- Classless Interdomain Routing (CIDR) is the internet's address assignment strategy and it generalizes the notion of subnet addressing.
- In subnet addressing the 32-bit IP address is divided into two parts and has the dotted-decimal form a.b.c.d/x, where x indivates the number of bits in the first part of the address
- These x bits constitute the network portion of the IP address and are referred to as the prefix
- Before CIDR was adopted, the network portions of an IP address were constrained to be 8, 16, or 24 bits in length, an addressing scheme known as classful addressing
The Dynamic Host Configuration Protocol
- The DHCP allows a host to get a IP address allocated to itself automatically. It can be configured by the network administrator to give the host the same IP address each time or allocate a new temoporary IP address whenever the host connects to the network
- Since the DHCP automates network related aspects of connecting a host into a network, it is referred to as a plug-and-play protocol
- DHCP is a client-server protocol
- The DHCP is a four step process
- DHCP server discovery: The host looks for a DHCP server to interact with using the DHCP discover message
- DHCP server offer(s): The server receiving the message respongs with a DHCP offer message. This offer message contains the proposed IP address for the client, the network mask, and an IP address lease time, the amount of time for which the IP address will be valid
- DHCP request: The host receives the offer message and responds with a DHCP request message echoing the requested parameters
- DHCP ACK: The server responds with a DHCP ACK message confirming the requested parameters
ICMP


I'm Afras Ahamed,19 years old techie from ponnani,kerala.Done my school education in vijayamatha english medium school,ponnani upto 10th standard later i completed my higher secondary education in ideal international school,tavanur and now im pursuing my engineering in mechanical stream at kmea engineering college,edathala .In my collage period I joined hack club for making own skills and experiences to make projects.I used to join different workshops and webinar to develope my skills and to accuring knowleadge about latest technologies.


{% extends "base.html" %} {% load launchpad_extras humanize %} {% block content %}
Enter your search term(s) in the search box and then press the Enter key.
For better results use several search terms rather than one word.
To start a new search replace the previous terms with something else, then press Enter.
You may begin a new search using the search field displayed on the details page for a title.
Search results are sorted by relevance. Up to 20 titles are displayed per page.
The checkbox labelled Online Resources, displayed under the search field, provides another way to narrow your search results.
Check the box to narrow results to the titles having at least one copy available online. This includes online resources provided by George Washington University and those which are shared electronic resources provided by the consortium (WRLC).
Unlike the Refine Results options, checking this box doesn't add a button above the search results. To de-select the Online Resources filter, un-check the box.
You may type in your search terms and use boolean operators AND, OR, NOT to combine the parts. More examples:
If you prefer to narrow the focus of the search up front, try the 'Advanced Search' page.
The system automatically does stemming of root words (e.g., sing, sang, sung, contstruct, contstruction, constructed).
However, you may use 'wildcard' syntax if you find it necessary.
You may use the question mark symbol to indicate the system should match any single character (e.g., colo?r matches color and colour).
You may use an asterisk symbol to match zero or more characters within a word (e.g., colo*al matches colonial, colossal, colloquial).
We are working on new features for the catalog, and this page will be updated as features are added. You may also submit suggestions or report problems with the catalog by clickng the "Found a Problem?" link at the top of this page.


EPL Betting is a free, non-commercial website. This is the perfect office game among colleagues.
In order to use EPL Betting you must be at least 18 years old.
Each user can bet on the final result of each English Preamier League game.
Each guessed sign (1, 2 or X) brings you 1 point. If you guess the exact result of a game, you get 3 points
The winner is picked at the end of the season. There are no rewards guys, sorry :)


Join forces with Liverpool FC fans all around the world with the Stand Red App
You’ve fervently supported Liverpool FC for as long as you can remember, but where’s the fun in cheering the likes of Virgil van Dijk, Sadio Mane and Jordan Henderson on your own?
Now, you don’t have to anymore as you can Stand Red with fellow fans from all across the globe with the Stand Red App, brought to you by Standard Chartered.
Building up to the weekend’s action will never be the same again and here is why!
Firstly, what better way to be greeted than by Liverpool FC’s inspirational captain Jordan Henderson, issuing a rallying cry as you count down to the upcoming match.
Everyone loves telling your favourite story of supporting the Reds, whether it be while on a pilgrimage to Anfield, meeting a Liverpool legend, or even if it’s just supporting from the comfort of your home on the television.
Either way, you can “Create Your Own Stories” on the Stand Red App – creating your own animations, viewing it on your red Liverpool FC home shirt, and then sharing it on your social media accounts.
Of course, any true Liverpool FC fan would never forget when the Reds are in action.
But just in case you are genuinely the forgetful type, what better way to be reminded by a pre-match call from one of your heroes… or even Jürgen Klopp himself?
You can set how far in advance you would like for your phone to start buzzing, in addition to the alarm reminder on the home screen.
As the match draws near and the players walk out the tunnel, it would not be a strange sight to see them touching the famed “This is Anfield” sign – after Klopp gave the green light following last season’s amazing UEFA Champions League triumph.
And thanks to the Stand Red App, you can do the same!
Finally, now that you’ve shared your story, lived through the thrills and experienced yet another triumph for Liverpool FC, it’s time to see what the rest of the Reds supporters around the world have been getting up to on the social wall, which you can also feature on simply by tagging your post with #StandRed.
When the dust finally settles, all that’s left to do? Count down to the next week when the Reds are back in action!


Event Bus
Originally conceived as a way to send messages to groups of actors, the EventBus has been generalized into a set of composable traits implementing a simple interface:
/**
* Attempts to register the subscriber to the specified Classifier
* @return true if successful and false if not (because it was already
* subscribed to that Classifier, or otherwise)
*/
def subscribe(subscriber: Subscriber, to: Classifier): Boolean
/**
* Attempts to deregister the subscriber from the specified Classifier
* @return true if successful and false if not (because it wasn't subscribed
* to that Classifier, or otherwise)
*/
def unsubscribe(subscriber: Subscriber, from: Classifier): Boolean
/**
* Attempts to deregister the subscriber from all Classifiers it may be subscribed to
*/
def unsubscribe(subscriber: Subscriber): Unit
/**
* Publishes the specified Event to this bus
*/
def publish(event: Event): Unit
Note
Please note that the EventBus does not preserve the sender of the published messages. If you need a reference to the original sender you have to provide it inside the message.
This mechanism is used in different places within Akka, e.g. the Event Stream. Implementations can make use of the specific building blocks presented below.
An event bus must define the following three abstract types:
- Event is the type of all events published on that bus
- Subscriber is the type of subscribers allowed to register on that event bus
- Classifier defines the classifier to be used in selecting subscribers for dispatching events
The traits below are still generic in these types, but they need to be defined for any concrete implementation.
Classifiers
The classifiers presented here are part of the Akka distribution, but rolling your own in case you do not find a perfect match is not difficult, check the implementation of the existing ones on github
Lookup Classification
The simplest classification is just to extract an arbitrary classifier from each event and maintaining a set of subscribers for each possible classifier. This can be compared to tuning in on a radio station. The trait LookupClassification is still generic in that it abstracts over how to compare subscribers and how exactly to classify.
The necessary methods to be implemented are illustrated with the following example:
import akka.event.EventBus
import akka.event.LookupClassification
final case class MsgEnvelope(topic: String, payload: Any)
/**
* Publishes the payload of the MsgEnvelope when the topic of the
* MsgEnvelope equals the String specified when subscribing.
*/
class LookupBusImpl extends EventBus with LookupClassification {
type Event = MsgEnvelope
type Classifier = String
type Subscriber = ActorRef
// is used for extracting the classifier from the incoming events
override protected def classify(event: Event): Classifier = event.topic
// will be invoked for each event for all subscribers which registered themselves
// for the event’s classifier
override protected def publish(event: Event, subscriber: Subscriber): Unit = {
subscriber ! event.payload
}
// must define a full order over the subscribers, expressed as expected from
// `java.lang.Comparable.compare`
override protected def compareSubscribers(a: Subscriber, b: Subscriber): Int =
a.compareTo(b)
// determines the initial size of the index data structure
// used internally (i.e. the expected number of different classifiers)
override protected def mapSize: Int = 128
}
A test for this implementation may look like this:
val lookupBus = new LookupBusImpl
lookupBus.subscribe(testActor, "greetings")
lookupBus.publish(MsgEnvelope("time", System.currentTimeMillis()))
lookupBus.publish(MsgEnvelope("greetings", "hello"))
expectMsg("hello")
This classifier is efficient in case no subscribers exist for a particular event.
Subchannel Classification
If classifiers form a hierarchy and it is desired that subscription be possible not only at the leaf nodes, this classification may be just the right one. It can be compared to tuning in on (possibly multiple) radio channels by genre. This classification has been developed for the case where the classifier is just the JVM class of the event and subscribers may be interested in subscribing to all subclasses of a certain class, but it may be used with any classifier hierarchy.
The necessary methods to be implemented are illustrated with the following example:
import akka.util.Subclassification
class StartsWithSubclassification extends Subclassification[String] {
override def isEqual(x: String, y: String): Boolean =
x == y
override def isSubclass(x: String, y: String): Boolean =
x.startsWith(y)
}
import akka.event.SubchannelClassification
/**
* Publishes the payload of the MsgEnvelope when the topic of the
* MsgEnvelope starts with the String specified when subscribing.
*/
class SubchannelBusImpl extends EventBus with SubchannelClassification {
type Event = MsgEnvelope
type Classifier = String
type Subscriber = ActorRef
// Subclassification is an object providing `isEqual` and `isSubclass`
// to be consumed by the other methods of this classifier
override protected val subclassification: Subclassification[Classifier] =
new StartsWithSubclassification
// is used for extracting the classifier from the incoming events
override protected def classify(event: Event): Classifier = event.topic
// will be invoked for each event for all subscribers which registered
// themselves for the event’s classifier
override protected def publish(event: Event, subscriber: Subscriber): Unit = {
subscriber ! event.payload
}
}
A test for this implementation may look like this:
val subchannelBus = new SubchannelBusImpl
subchannelBus.subscribe(testActor, "abc")
subchannelBus.publish(MsgEnvelope("xyzabc", "x"))
subchannelBus.publish(MsgEnvelope("bcdef", "b"))
subchannelBus.publish(MsgEnvelope("abc", "c"))
expectMsg("c")
subchannelBus.publish(MsgEnvelope("abcdef", "d"))
expectMsg("d")
This classifier is also efficient in case no subscribers are found for an event, but it uses conventional locking to synchronize an internal classifier cache, hence it is not well-suited to use cases in which subscriptions change with very high frequency (keep in mind that “opening” a classifier by sending the first message will also have to re-check all previous subscriptions).
Scanning Classification
The previous classifier was built for multi-classifier subscriptions which are strictly hierarchical, this classifier is useful if there are overlapping classifiers which cover various parts of the event space without forming a hierarchy. It can be compared to tuning in on (possibly multiple) radio stations by geographical reachability (for old-school radio-wave transmission).
The necessary methods to be implemented are illustrated with the following example:
import akka.event.ScanningClassification
/**
* Publishes String messages with length less than or equal to the length
* specified when subscribing.
*/
class ScanningBusImpl extends EventBus with ScanningClassification {
type Event = String
type Classifier = Int
type Subscriber = ActorRef
// is needed for determining matching classifiers and storing them in an
// ordered collection
override protected def compareClassifiers(a: Classifier, b: Classifier): Int =
if (a < b) -1 else if (a == b) 0 else 1
// is needed for storing subscribers in an ordered collection
override protected def compareSubscribers(a: Subscriber, b: Subscriber): Int =
a.compareTo(b)
// determines whether a given classifier shall match a given event; it is invoked
// for each subscription for all received events, hence the name of the classifier
override protected def matches(classifier: Classifier, event: Event): Boolean =
event.length <= classifier
// will be invoked for each event for all subscribers which registered themselves
// for a classifier matching this event
override protected def publish(event: Event, subscriber: Subscriber): Unit = {
subscriber ! event
}
}
A test for this implementation may look like this:
val scanningBus = new ScanningBusImpl
scanningBus.subscribe(testActor, 3)
scanningBus.publish("xyzabc")
scanningBus.publish("ab")
expectMsg("ab")
scanningBus.publish("abc")
expectMsg("abc")
This classifier takes always a time which is proportional to the number of subscriptions, independent of how many actually match.
Actor Classification
This classification was originally developed specifically for implementing DeathWatch: subscribers as well as classifiers are of type ActorRef.
This classification requires an ActorSystem in order to perform book-keeping operations related to the subscribers being Actors, which can terminate without first unsubscribing from the EventBus. ManagedActorClassification maintains a system Actor which takes care of unsubscribing terminated actors automatically.
The necessary methods to be implemented are illustrated with the following example:
import akka.event.ActorEventBus
import akka.event.ManagedActorClassification
import akka.event.ActorClassifier
final case class Notification(ref: ActorRef, id: Int)
class ActorBusImpl(val system: ActorSystem) extends ActorEventBus with ActorClassifier with ManagedActorClassification {
type Event = Notification
// is used for extracting the classifier from the incoming events
override protected def classify(event: Event): ActorRef = event.ref
// determines the initial size of the index data structure
// used internally (i.e. the expected number of different classifiers)
override protected def mapSize: Int = 128
}
A test for this implementation may look like this:
val observer1 = TestProbe().ref
val observer2 = TestProbe().ref
val probe1 = TestProbe()
val probe2 = TestProbe()
val subscriber1 = probe1.ref
val subscriber2 = probe2.ref
val actorBus = new ActorBusImpl(system)
actorBus.subscribe(subscriber1, observer1)
actorBus.subscribe(subscriber2, observer1)
actorBus.subscribe(subscriber2, observer2)
actorBus.publish(Notification(observer1, 100))
probe1.expectMsg(Notification(observer1, 100))
probe2.expectMsg(Notification(observer1, 100))
actorBus.publish(Notification(observer2, 101))
probe2.expectMsg(Notification(observer2, 101))
probe1.expectNoMsg(500.millis)
This classifier is still is generic in the event type, and it is efficient for all use cases.
Event Stream
The event stream is the main event bus of each actor system: it is used for carrying log messages and Dead Letters and may be used by the user code for other purposes as well. It uses Subchannel Classification which enables registering to related sets of channels (as is used for RemotingLifecycleEvent). The following example demonstrates how a simple subscription works:
import akka.actor.{ Actor, DeadLetter, Props }
class Listener extends Actor {
def receive = {
case d: DeadLetter => println(d)
}
}
val listener = system.actorOf(Props(classOf[Listener], this))
system.eventStream.subscribe(listener, classOf[DeadLetter])
It is also worth pointing out that thanks to the way the subchannel classification is implemented in the event stream, it is possible to subscribe to a group of events, by subscribing to their common superclass as demonstrated in the following example:
abstract class AllKindsOfMusic { def artist: String }
case class Jazz(artist: String) extends AllKindsOfMusic
case class Electronic(artist: String) extends AllKindsOfMusic
class Listener extends Actor {
def receive = {
case m: Jazz => println(s"${self.path.name} is listening to: ${m.artist}")
case m: Electronic => println(s"${self.path.name} is listening to: ${m.artist}")
}
}
val jazzListener = system.actorOf(Props(classOf[Listener], this))
val musicListener = system.actorOf(Props(classOf[Listener], this))
system.eventStream.subscribe(jazzListener, classOf[Jazz])
system.eventStream.subscribe(musicListener, classOf[AllKindsOfMusic])
// only musicListener gets this message, since it listens to *all* kinds of music:
system.eventStream.publish(Electronic("Parov Stelar"))
// jazzListener and musicListener will be notified about Jazz:
system.eventStream.publish(Jazz("Sonny Rollins"))
Similarly to Actor Classification, EventStream will automatically remove subscribers when they terminate.
Note
The event stream is a local facility, meaning that it will not distribute events to other nodes in a clustered environment (unless you subscribe a Remote Actor to the stream explicitly). If you need to broadcast events in an Akka cluster, without knowing your recipients explicitly (i.e. obtaining their ActorRefs), you may want to look into: Distributed Publish Subscribe in Cluster.
Default Handlers
Upon start-up the actor system creates and subscribes actors to the event stream for logging: these are the handlers which are configured for example in application.conf:
akka {
loggers = ["akka.event.Logging$DefaultLogger"]
}
The handlers listed here by fully-qualified class name will be subscribed to all log event classes with priority higher than or equal to the configured log-level and their subscriptions are kept in sync when changing the log-level at runtime:
system.eventStream.setLogLevel(Logging.DebugLevel)
This means that log events for a level which will not be logged are not typically not dispatched at all (unless manual subscriptions to the respective event class have been done)
Dead Letters
As described at Stopping actors, messages queued when an actor terminates or sent after its death are re-routed to the dead letter mailbox, which by default will publish the messages wrapped in DeadLetter. This wrapper holds the original sender, receiver and message of the envelope which was redirected.
Some internal messages (marked with the DeadLetterSuppression trait) will not end up as dead letters like normal messages. These are by design safe and expected to sometimes arrive at a terminated actor and since they are nothing to worry about, they are suppressed from the default dead letters logging mechanism.
However, in case you find yourself in need of debugging these kinds of low level suppressed dead letters, it's still possible to subscribe to them explicitly:
import akka.actor.SuppressedDeadLetter
system.eventStream.subscribe(listener, classOf[SuppressedDeadLetter])
or all dead letters (including the suppressed ones):
import akka.actor.AllDeadLetters
system.eventStream.subscribe(listener, classOf[AllDeadLetters])
Other Uses
The event stream is always there and ready to be used, just publish your own events (it accepts AnyRef) and subscribe listeners to the corresponding JVM classes.
Contents


| X | Y | Z | |
|---|---|---|---|
| Position | n/a | n/a | n/a |
| Steps | n/a | n/a | n/a |
| Min-stop | n/a | n/a | n/a |
| Max-stop | n/a | n/a | n/a |
| State | |||
| QueueLen |
| RobotName | |
|---|---|
| RobotConfig | |
| Schedule | |
| Change RobotType |
Click Save to confirm changes
|


All About Siamak
Obejctive statement
In this fast-growing society which is all influenced by Tech, I belive in being part of this development and evolution.
Education Background
- Diploma: Mathematics
- Bachelor: English Literature
- Master: Biodiversity an Habitats
Work experience
- 2004 until 2016 Teacher at Aviation University
- 2008 until 2016 Wildlife researcher at Pars Herpethologists INS
- 2016 until Nov 2016 Salesperson at Hyundai of Kirkland
Hobbies
Camping
Photography
Sports
My goal in life
Learning coding
Startign my career as a programmer and developer
Be modest and kind in every stage of my life
Top Five Movies
- Shawshank redemption
- The beautiful mind
- Gladiator
- The shining
- Inception
Top Five Places to Visit
- Yellow stone
- The Everest
- The Amazon
- The Erena
- Miami beach


Inspekta.Net -
Inspekta.net is Savety and Environment Care department (K3L) of PLN Kalseteng application for recording unsafe actions, unsafe condition, nearmiss & accident impact based on K3L rules and regulations.
Primahan.com -
A lecturer's personal and educational blog.
DinoDonuts.com -
As online shop of DinoDonuts store to serve online order of their products. This site contains ordering cart in Front-end and Order Management in Back-end.
Ongkir.Belimukena.com -
A web application to serve Belimukena.com's order shipment cost (with API) from Tasikmalaya City to all Indonesia's districts (with local data shipment rates).
Calief Gallery Order Management -
A web application to manage Calief Gallery's customer orders, include Work Order assignments, Customer Invoices and order shipments management.
AkuKreatif.com -
A web-based directory application for member profile of Ekraf Member's registration and member profiles management.
STIKES Husada Borneo - Academic System -
An academic information system to serve academic data management service of of STIKES Husada Borneo, Banjarbaru.
STIMI Banjarmasin - Academic System -
An academic information system to serve academic data management service of of STIMI Banjarmasin, Banjarmasin.


lateinit var surface: Surface
Surface from which any buffers submitted to will be emitted as a VideoFrame. User must call start to start listening, and stop will likewise stop listening.