framework: set context for loggers

Set context for the loggers of the Runner, the workloads and the
installed instruments and processors. Errors/warnings logged by these
entities will be automatically added as events.

wa/framework/execution.py

@@ -286,13 +286,13 @@ class Executor(object):
 
         self.logger.info('Installing instrumentation')
         for instrument in config_manager.get_instruments(self.target_manager.target):
-            instrumentation.install(instrument)
+            instrumentation.install(instrument, context)
         instrumentation.validate()
 
         self.logger.info('Installing result processors')
         pm = ProcessorManager()
         for proc in config_manager.get_processors():
-            pm.install(proc)
+            pm.install(proc, context)
         pm.validate()
 
         self.logger.info('Starting run')
@@ -342,6 +342,7 @@ class Runner(object):
 
     def __init__(self, context, pm):
         self.logger = logging.getLogger('runner')
+        self.logger.context = context
         self.context = context
         self.pm = pm
         self.output = self.context.output

wa/framework/instrumentation.py

@@ -287,7 +287,7 @@ class ManagedCallback(object):
 _callbacks = []
 
 
-def install(instrument):
+def install(instrument, context):
     """
     This will look for methods (or any callable members) with specific names
     in the instrument and hook them up to the corresponding signals.
@@ -328,6 +328,7 @@ def install(instrument):
         _callbacks.append(mc)
         signal.connect(mc, SIGNAL_MAP[attr_name], priority=priority.value)
 
+    instrument.logger.context = context
     installed.append(instrument)
 
 

wa/framework/job.py

@@ -57,6 +57,7 @@ class Job(object):
     def initialize(self, context):
         self.logger.info('Initializing job {} [{}]'.format(self.id, self.iteration))
         with signal.wrap('WORKLOAD_INITIALIZED', self, context):
+            self.workload.logger.context = context
             self.workload.initialize(context)
         self.set_status(Status.PENDING)
         context.update_job_state(self)

wa/framework/processor.py

@@ -33,10 +33,11 @@ class ProcessorManager(object):
         self.logger = logging.getLogger('processor')
         self.processors = []
 
-    def install(self, processor):
+    def install(self, processor, context):
         if not isinstance(processor, ResultProcessor):
             processor = self.loader.get_result_processor(processor)
         self.logger.debug('Installing {}'.format(processor.name))
+        processor.logger.context = context
         self.processors.append(processor)
 
     def validate(self):