def __call__(self, environ, start_response):
transaction = newrelic.api.transaction.current_transaction()
# Check to see if we are being called within the
# context of any sort of transaction. If we are,
# then we don't bother doing anything and just
# call the wrapped function.
if transaction:
return self._nr_next_object(environ, start_response)
# Otherwise treat it as top level transaction.
# We have to though look first to see whether the
# application name has been overridden through
# the WSGI environ dictionary.
app_name = environ.get('newrelic.app_name')
if app_name:
if app_name.find(';') != -1:
app_names = [string.strip(n) for n in app_name.split(';')]
app_name = app_names[0]
application = newrelic.api.application.application_instance(
app_name)
for altname in app_names[1:]:
application.link_to_application(altname)
else:
application = newrelic.api.application.application_instance(
app_name)
else:
application = self._nr_application
# FIXME Should this allow for multiple apps if a string.
if type(application) != newrelic.api.application.Application:
application = newrelic.api.application.application_instance(
application)
# Now start recording the actual web transaction.
transaction = WebTransaction(application, environ)
transaction.__enter__()
def _start_response(status, response_headers, *args):
try:
transaction.response_code = int(status.split(' ')[0])
except:
pass
try:
header = filter(lambda x: x[0].lower() == 'content-length',
response_headers)[-1:]
if header:
transaction._response_properties['CONTENT_LENGTH'] = \
header[0][1]
except:
pass
_write = start_response(status, response_headers, *args)
def write(data):
if not transaction._sent_start:
transaction._sent_start = time.time()
result = _write(data)
transaction._calls_write += 1
try:
transaction._bytes_sent += len(data)
except:
pass
transaction._sent_end = time.time()
return result
return write
try:
# Should always exist, but check as test harnesses may not
# have it.
if 'wsgi.input' in environ:
environ['wsgi.input'] = WSGIInputWrapper(transaction,
environ['wsgi.input'])
application = newrelic.api.function_trace.FunctionTraceWrapper(
self._nr_next_object)
with newrelic.api.function_trace.FunctionTrace(
transaction, name='Application', group='Python/WSGI'):
result = application(environ, _start_response)
except:
transaction.__exit__(*sys.exc_info())
raise
return _WSGIApplicationIterable(transaction, result)
def __call__(self, environ, start_response):
transaction = newrelic.api.transaction.current_transaction()
# Check to see if we are being called within the
# context of any sort of transaction. If we are,
# then we don't bother doing anything and just
# call the wrapped function.
if transaction:
# Record details of framework against the transaction
# for later reporting as supportability metrics.
if self._nr_framework:
transaction._frameworks.add(self._nr_framework)
# Override the web transaction name to be the name of the
# wrapped callable if not explicitly named, and we want the
# default name to be that of the WSGI component for the
# framework. This will override the use of a raw URL which
# can result in metric grouping issues where a framework is
# not instrumented or is leaking URLs.
settings = transaction._settings
if self._nr_name is None and settings:
if self._nr_framework is not None:
naming_scheme = settings.transaction_name.naming_scheme
if naming_scheme in (None, 'framework'):
name = newrelic.api.object_wrapper.callable_name(
self._nr_next_object)
transaction.name_transaction(name, priority=1)
elif self._nr_name:
transaction.name_transaction(self._nr_name, self._nr_group,
priority=1)
return self._nr_next_object(environ, start_response)
# Otherwise treat it as top level transaction.
# We have to though look first to see whether the
# application name has been overridden through
# the WSGI environ dictionary.
app_name = environ.get('newrelic.app_name')
if app_name:
if app_name.find(';') != -1:
app_names = [string.strip(n) for n in app_name.split(';')]
app_name = app_names[0]
application = newrelic.api.application.application_instance(
app_name)
for altname in app_names[1:]:
application.link_to_application(altname)
else:
application = newrelic.api.application.application_instance(
app_name)
else:
application = self._nr_application
# If application has an activate() method we assume it is an
# actual application. Do this rather than check type so that
# can easily mock it for testing.
# FIXME Should this allow for multiple apps if a string.
if not hasattr(application, 'activate'):
application = newrelic.api.application.application_instance(
application)
# Now start recording the actual web transaction.
transaction = WebTransaction(application, environ)
transaction.__enter__()
# Record details of framework against the transaction
# for later reporting as supportability metrics.
if self._nr_framework:
transaction._frameworks.add(self._nr_framework)
# Override the initial web transaction name to be the supplied
# name, or the name of the wrapped callable if wanting to use
# the callable as the default. This will override the use of a
# raw URL which can result in metric grouping issues where a
# framework is not instrumented or is leaking URLs.
#
# Note that at present if default for naming scheme is still
# None and we aren't specifically wrapping a designated
# framework, then we still allow old URL based naming to
# override. When we switch to always forcing a name we need to
# check for naming scheme being None here.
settings = transaction._settings
if self._nr_name is None and settings:
naming_scheme = settings.transaction_name.naming_scheme
if self._nr_framework is not None:
if naming_scheme in (None, 'framework'):
name = newrelic.api.object_wrapper.callable_name(
self._nr_next_object)
transaction.name_transaction(name, priority=1)
elif naming_scheme in ('component', 'framework'):
name = newrelic.api.object_wrapper.callable_name(
self._nr_next_object)
transaction.name_transaction(name, priority=1)
elif self._nr_name:
transaction.name_transaction(self._nr_name, self._nr_group,
priority=1)
def _start_response(status, response_headers, *args):
additional_headers = transaction.process_response(
status, response_headers, *args)
_write = start_response(status,
response_headers+additional_headers, *args)
def write(data):
if not transaction._sent_start:
transaction._sent_start = time.time()
result = _write(data)
transaction._calls_write += 1
try:
transaction._bytes_sent += len(data)
except Exception:
pass
transaction._sent_end = time.time()
return result
return write
try:
# Should always exist, but check as test harnesses may not
# have it.
if 'wsgi.input' in environ:
environ['wsgi.input'] = WSGIInputWrapper(transaction,
environ['wsgi.input'])
application = newrelic.api.function_trace.FunctionTraceWrapper(
self._nr_next_object)
with newrelic.api.function_trace.FunctionTrace(
transaction, name='Application', group='Python/WSGI'):
result = application(environ, _start_response)
except: # Catch all
transaction.__exit__(*sys.exc_info())
raise
return _WSGIApplicationIterable(transaction, result)
def __call__(self):
assert self._nr_instance != None
transaction = newrelic.api.transaction.current_transaction()
# Check to see if we are being called within the context of any
# sort of transaction. If we are, then we don't bother doing
# anything and just call the wrapped function. This should not
# really ever occur with Twisted.Web wrapper but check anyway.
if transaction:
return self._nr_next_object()
# Always use the default application specified in the agent
# configuration.
application = newrelic.api.application.application_instance()
# We need to fake up a WSGI like environ dictionary with the key
# bits of information we need.
environ = {}
environ['REQUEST_URI'] = self._nr_instance.path
# Now start recording the actual web transaction.
transaction = newrelic.api.web_transaction.WebTransaction(
application, environ)
if not transaction.enabled:
return self._nr_next_object()
transaction.__enter__()
self._nr_instance._nr_transaction = transaction
self._nr_instance._nr_is_deferred_callback = False
self._nr_instance._nr_is_request_finished = False
self._nr_instance._nr_wait_function_trace = None
# We need to add a reference to the Twisted.Web request object
# in the transaction as only able to stash the transaction in a
# deferred. Need to use a weakref to avoid an object cycle which
# may prevent cleanup of transaction.
transaction._nr_current_request = weakref.ref(self._nr_instance)
try:
# Call the original method in a trace object to give better
# context in transaction traces. Three things can happen
# within this call. The render() function which is in turn
# called can return a result immediately which means user
# code should have called finish() on the request, it can
# raise an exception which is caught in process() function
# where error handling calls finish(), or it can return that
# it is not done yet and register deferred callbacks to
# complete the request.
with newrelic.api.function_trace.FunctionTrace(transaction,
name='Request/Process', group='Python/Twisted'):
result = self._nr_next_object()
# In the case of a result having being returned or an
# exception occuring, then finish() will have been called.
# We can't just exit the transaction in the finish call
# however as need to still pop back up through the above
# function trace. So if flagged that have finished, then we
# exit the transaction here. Otherwise we setup a function
# trace to track wait time for deferred and manually pop the
# transaction as being the current one for this thread.
if self._nr_instance._nr_is_request_finished:
transaction.__exit__(None, None, None)
self._nr_instance._nr_transaction = None
self._nr_instance = None
else:
self._nr_instance._nr_wait_function_trace = \
newrelic.api.function_trace.FunctionTrace(
transaction, name='Deferred/Wait',
group='Python/Twisted')
self._nr_instance._nr_wait_function_trace.__enter__()
transaction.drop_transaction()
except: # Catch all
# If an error occurs assume that transaction should be
# exited. Technically don't believe this should ever occur
# unless our code here has an error or Twisted.Web is
# broken.
_logger.exception('Unexpected exception raised by Twisted.Web '
'Request.process() exception.')
transaction.__exit__(*sys.exc_info())
self._nr_instance._nr_transaction = None
self._nr_instance = None
raise
return result
def __call__(self, environ, start_response):
transaction = newrelic.api.transaction.current_transaction()
# Check to see if we are being called within the
# context of any sort of transaction. If we are,
# then we don't bother doing anything and just
# call the wrapped function.
if transaction:
# Record details of framework against the transaction
# for later reporting as supportability metrics.
if self._nr_framework:
transaction._frameworks.add(self._nr_framework)
# Override the web transaction name to be the name of the
# wrapped callable if not explicitly named, and we want the
# default name to be that of the WSGI component for the
# framework. This will override the use of a raw URL which
# can result in metric grouping issues where a framework is
# not instrumented or is leaking URLs.
settings = transaction._settings
if self._nr_name is None and settings:
if self._nr_framework is not None:
naming_scheme = settings.transaction_name.naming_scheme
if naming_scheme in (None, 'framework'):
name = newrelic.api.object_wrapper.callable_name(
self._nr_next_object)
transaction.set_transaction_name(name, priority=1)
elif self._nr_name:
transaction.set_transaction_name(self._nr_name,
self._nr_group, priority=1)
return self._nr_next_object(environ, start_response)
# Otherwise treat it as top level transaction.
# We have to though look first to see whether the
# application name has been overridden through
# the WSGI environ dictionary.
app_name = environ.get('newrelic.app_name')
if app_name:
if app_name.find(';') != -1:
app_names = [string.strip(n) for n in app_name.split(';')]
app_name = app_names[0]
application = newrelic.api.application.application_instance(
app_name)
for altname in app_names[1:]:
application.link_to_application(altname)
else:
application = newrelic.api.application.application_instance(
app_name)
else:
application = self._nr_application
# If application has an activate() method we assume it is an
# actual application. Do this rather than check type so that
# can easily mock it for testing.
# FIXME Should this allow for multiple apps if a string.
if not hasattr(application, 'activate'):
application = newrelic.api.application.application_instance(
application)
# Now start recording the actual web transaction.
transaction = WebTransaction(application, environ)
transaction.__enter__()
# Record details of framework against the transaction
# for later reporting as supportability metrics.
if self._nr_framework:
transaction._frameworks.add(self._nr_framework)
# Override the initial web transaction name to be the supplied
# name, or the name of the wrapped callable if wanting to use
# the callable as the default. This will override the use of a
# raw URL which can result in metric grouping issues where a
# framework is not instrumented or is leaking URLs.
#
# Note that at present if default for naming scheme is still
# None and we aren't specifically wrapping a designated
# framework, then we still allow old URL based naming to
# override. When we switch to always forcing a name we need to
# check for naming scheme being None here.
settings = transaction._settings
if self._nr_name is None and settings:
naming_scheme = settings.transaction_name.naming_scheme
if self._nr_framework is not None:
if naming_scheme in (None, 'framework'):
name = newrelic.api.object_wrapper.callable_name(
self._nr_next_object)
transaction.set_transaction_name(name, priority=1)
elif naming_scheme in ('component', 'framework'):
name = newrelic.api.object_wrapper.callable_name(
self._nr_next_object)
transaction.set_transaction_name(name, priority=1)
elif self._nr_name:
transaction.set_transaction_name(self._nr_name, self._nr_group,
priority=1)
def _start_response(status, response_headers, *args):
additional_headers = transaction.process_response(
status, response_headers, *args)
_write = start_response(status,
response_headers+additional_headers, *args)
def write(data):
if not transaction._sent_start:
transaction._sent_start = time.time()
result = _write(data)
transaction._calls_write += 1
try:
transaction._bytes_sent += len(data)
except Exception:
pass
transaction._sent_end = time.time()
return result
return write
try:
# Should always exist, but check as test harnesses may not
# have it.
if 'wsgi.input' in environ:
environ['wsgi.input'] = WSGIInputWrapper(transaction,
environ['wsgi.input'])
application = newrelic.api.function_trace.FunctionTraceWrapper(
self._nr_next_object)
with newrelic.api.function_trace.FunctionTrace(
transaction, name='Application', group='Python/WSGI'):
result = application(environ, _start_response)
except: # Catch all
transaction.__exit__(*sys.exc_info())
raise
return _WSGIApplicationIterable(transaction, result)
def __call__(self):
assert self._nr_instance != None
transaction = newrelic.api.transaction.current_transaction()
# Check to see if we are being called within the context of any
# sort of transaction. If we are, then we don't bother doing
# anything and just call the wrapped function. This should not
# really ever occur with Twisted.Web wrapper but check anyway.
if transaction:
return self._nr_next_object()
# Always use the default application specified in the agent
# configuration.
application = newrelic.api.application.application_instance()
# We need to fake up a WSGI like environ dictionary with the key
# bits of information we need.
environ = {}
environ['REQUEST_URI'] = self._nr_instance.path
# Now start recording the actual web transaction.
transaction = newrelic.api.web_transaction.WSGIWebTransaction(
application, environ, source=self._nr_next_object)
if not transaction.enabled:
return self._nr_next_object()
transaction.__enter__()
self._nr_instance._nr_transaction = transaction
self._nr_instance._nr_is_deferred_callback = False
self._nr_instance._nr_is_request_finished = False
self._nr_instance._nr_wait_function_trace = None
# We need to add a reference to the Twisted.Web request object
# in the transaction as only able to stash the transaction in a
# deferred. Need to use a weakref to avoid an object cycle which
# may prevent cleanup of transaction.
transaction._nr_current_request = weakref.ref(self._nr_instance)
try:
# Call the original method in a trace object to give better
# context in transaction traces. Three things can happen
# within this call. The render() function which is in turn
# called can return a result immediately which means user
# code should have called finish() on the request, it can
# raise an exception which is caught in process() function
# where error handling calls finish(), or it can return that
# it is not done yet and register deferred callbacks to
# complete the request.
result = newrelic.api.function_trace.FunctionTraceWrapper(self._nr_next_object, name='Request/Process', group='Python/Twisted')
# In the case of a result having being returned or an
# exception occuring, then finish() will have been called.
# We can't just exit the transaction in the finish call
# however as need to still pop back up through the above
# function trace. So if flagged that have finished, then we
# exit the transaction here. Otherwise we setup a function
# trace to track wait time for deferred and manually pop the
# transaction as being the current one for this thread.
if self._nr_instance._nr_is_request_finished:
transaction.__exit__(None, None, None)
self._nr_instance._nr_transaction = None
self._nr_instance = None
else:
self._nr_instance._nr_wait_function_trace = \
newrelic.api.function_trace.FunctionTrace(
name='Deferred/Wait',
group='Python/Twisted',
source=self._nr_next_object)
self._nr_instance._nr_wait_function_trace.__enter__()
transaction.drop_transaction()
except: # Catch all
# If an error occurs assume that transaction should be
# exited. Technically don't believe this should ever occur
# unless our code here has an error or Twisted.Web is
# broken.
_logger.exception('Unexpected exception raised by Twisted.Web '
'Request.process() exception.')
transaction.__exit__(*sys.exc_info())
self._nr_instance._nr_transaction = None
self._nr_instance = None
raise
return result
