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"""
Simple Router
Routes tasks to appropriate modules and executes them
Handles single-step and simple multi-step tasks
"""
from typing import List, Dict, Any, Optional
import time
import uuid
from app.routing.execution_plan import (
ExecutionPlan,
ExecutionStep,
ExecutionResult,
StepStatus
)
from app.routing.module_executor import ModuleExecutor
from app.modules.base import BaseModule
from app.modules.registry import ModuleRegistry, ModuleSelector
from app.orchestrator.models import TaskClassification
from app.orchestrator.parameter_models import ExtractedParameters
from app.core.logging import get_logger
from app.core.exceptions import TaskProcessingError
logger = get_logger(__name__)
class SimpleRouter:
"""
Simple task router for single-step and linear multi-step tasks
Does NOT handle complex branching or parallel execution
"""
def __init__(
self,
module_registry: Optional[ModuleRegistry] = None,
module_selector: Optional[ModuleSelector] = None
):
"""
Initialize simple router
Args:
module_registry: Module registry (creates new if None)
module_selector: Module selector (creates new if None)
"""
self.registry = module_registry or ModuleRegistry()
self.selector = module_selector or ModuleSelector(self.registry)
self.executor = ModuleExecutor()
logger.info("SimpleRouter initialized")
async def route_and_execute(
self,
classification: TaskClassification,
parameters: ExtractedParameters,
task_description: str
) -> ExecutionResult:
"""
Route task and execute
Main entry point for simple routing
Args:
classification: Task classification
parameters: Extracted parameters
task_description: Original task description
Returns:
ExecutionResult: Final execution result
"""
task_id = str(uuid.uuid4())[:8]
logger.info(f"🚀 Starting task routing | Task ID: {task_id}")
logger.info(f"Task type: {classification.primary_task.value}")
logger.info(f"Complexity: {classification.complexity.value}")
start_time = time.time()
try:
# Step 1: Select modules
logger.info("📋 Step 1: Module selection")
selected_modules = self.selector.select_modules(classification, parameters)
if not selected_modules:
logger.warning("No modules selected for task")
return ExecutionResult(
task_id=task_id,
success=False,
total_steps=0,
errors=["No modules available to execute this task"]
)
logger.info(f"✓ Selected {len(selected_modules)} modules")
# Step 2: Create execution plan
logger.info("📋 Step 2: Creating execution plan")
plan = self._create_execution_plan(
task_id=task_id,
modules=selected_modules,
parameters=parameters,
task_description=task_description
)
logger.info(f"✓ Execution plan created with {len(plan.steps)} steps")
# Step 3: Execute plan
logger.info("📋 Step 3: Executing plan")
result = await self._execute_plan(plan, selected_modules)
execution_time = time.time() - start_time
result.execution_time = execution_time
logger.info(
f"✅ Task execution complete | "
f"Success: {result.success} | "
f"Time: {execution_time:.2f}s"
)
return result
except Exception as e:
execution_time = time.time() - start_time
logger.error(f"❌ Task execution failed: {str(e)}", exc_info=True)
return ExecutionResult(
task_id=task_id,
success=False,
errors=[str(e)],
execution_time=execution_time
)
def _create_execution_plan(
self,
task_id: str,
modules: List[BaseModule],
parameters: ExtractedParameters,
task_description: str
) -> ExecutionPlan:
"""
Create execution plan from selected modules
Args:
task_id: Task identifier
modules: Selected modules
parameters: Extracted parameters
task_description: Task description
Returns:
ExecutionPlan: Execution plan
"""
steps = []
for i, module in enumerate(modules, 1):
# Configure module parameters
module_params = self._configure_module_parameters(
module=module,
parameters=parameters,
step_number=i
)
# Create step
step = ExecutionStep(
step_number=i,
module_name=module.name,
description=self._generate_step_description(module, i, len(modules)),
parameters=module_params,
depends_on=[i - 1] if i > 1 else [] # Linear dependency
)
steps.append(step)
# Estimate duration
estimated_duration = sum(
module.estimate_cost(step.parameters) * 10
for module, step in zip(modules, steps)
)
plan = ExecutionPlan(
task_id=task_id,
description=task_description[:100],
steps=steps,
estimated_duration=int(estimated_duration),
complexity=self._assess_plan_complexity(modules)
)
return plan
def _configure_module_parameters(
self,
module: BaseModule,
parameters: ExtractedParameters,
step_number: int
) -> Dict[str, Any]:
"""
Configure parameters for specific module
Args:
module: Module to configure
parameters: Extracted parameters
step_number: Step number
Returns:
Dict: Configured parameters for module
"""
config = {}
# Data source (for scrapers/API clients)
if parameters.data_sources and step_number == 1:
data_source = parameters.data_sources[0]
config['url'] = data_source.location
config['format'] = data_source.format
# Filters (for processors)
if parameters.filters:
config['filters'] = [
{
'field': f.field,
'operator': f.operator,
'value': f.value
}
for f in parameters.filters
]
# Columns (for data extraction)
if parameters.columns:
config['columns'] = [col.name for col in parameters.columns]
# Aggregations (for processors)
if parameters.aggregations:
config['aggregations'] = [
{
'function': agg.function,
'field': agg.field,
'group_by': agg.group_by
}
for agg in parameters.aggregations
]
# Sorting (for processors)
if parameters.sorting:
config['sorting'] = [
{
'field': sort.field,
'order': sort.order
}
for sort in parameters.sorting
]
# Visualizations (for visualizers)
if parameters.visualizations:
viz = parameters.visualizations[0]
config['chart_type'] = viz.chart_type
config['title'] = viz.title
# Output format (for exporters)
if parameters.output:
config['format'] = parameters.output.format
config['filename'] = parameters.output.filename
return config
def _generate_step_description(
self,
module: BaseModule,
step_num: int,
total_steps: int
) -> str:
"""Generate human-readable step description"""
descriptions = {
'static_scraper': f'Step {step_num}/{total_steps}: Scrape data from website',
'dynamic_scraper': f'Step {step_num}/{total_steps}: Scrape dynamic content (JavaScript)',
'api_client': f'Step {step_num}/{total_steps}: Fetch data from API',
'data_processor': f'Step {step_num}/{total_steps}: Process and filter data',
'chart_creator': f'Step {step_num}/{total_steps}: Create visualization',
'csv_exporter': f'Step {step_num}/{total_steps}: Export to CSV',
}
return descriptions.get(
module.name,
f'Step {step_num}/{total_steps}: Execute {module.name}'
)
def _assess_plan_complexity(self, modules: List[BaseModule]) -> str:
"""Assess plan complexity"""
if len(modules) == 1:
return "simple"
elif len(modules) <= 3:
return "medium"
else:
return "complex"
async def _execute_plan(
self,
plan: ExecutionPlan,
modules: List[BaseModule]
) -> ExecutionResult:
"""
Execute the plan
Args:
plan: Execution plan
modules: Modules to execute
Returns:
ExecutionResult: Execution result
"""
logger.info(f"Executing plan with {len(plan.steps)} steps")
step_results = []
final_data = None
for step in plan.steps:
logger.info(f"📍 {step.description}")
# Get module
module = next(m for m in modules if m.name == step.module_name)
# Update status
step.status = StepStatus.RUNNING
# Execute
try:
result = await self.executor.execute_module(
module=module,
parameters=step.parameters,
context=self.executor.get_context()
)
# Update step
step.result = result
if result.success:
step.status = StepStatus.COMPLETED
final_data = result.data
step_results.append({
'step': step.step_number,
'module': step.module_name,
'success': True,
'execution_time': result.execution_time
})
else:
step.status = StepStatus.FAILED
step.error = result.error
step_results.append({
'step': step.step_number,
'module': step.module_name,
'success': False,
'error': result.error
})
# Stop on first failure
logger.error(f"Step {step.step_number} failed, stopping execution")
break
except Exception as e:
step.status = StepStatus.FAILED
step.error = str(e)
step_results.append({
'step': step.step_number,
'module': step.module_name,
'success': False,
'error': str(e)
})
logger.error(f"Step {step.step_number} exception: {e}")
break
# Create result
completed_steps = sum(
1 for step in plan.steps
if step.status == StepStatus.COMPLETED
)
success = plan.is_completed() and not plan.has_failed()
errors = [
f"Step {step.step_number} ({step.module_name}): {step.error}"
for step in plan.steps
if step.error
]
result = ExecutionResult(
task_id=plan.task_id,
success=success,
data=final_data,
steps_completed=completed_steps,
total_steps=len(plan.steps),
step_results=step_results,
errors=errors,
metadata={
'plan_complexity': plan.complexity,
'estimated_duration': plan.estimated_duration
}
)
return result
def cleanup(self):
"""Clean up resources"""
self.executor.clear_context()
logger.debug("SimpleRouter cleanup complete")
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