def MonitorUrl(connection,
url,
clear_cache=False,
categories=tracing.DEFAULT_CATEGORIES,
timeout=devtools_monitor.DEFAULT_TIMEOUT):
"""Monitor a URL via a trace recorder.
Args:
connection: A devtools_monitor.DevToolsConnection instance.
url: url to navigate to as string.
clear_cache: boolean indicating if cache should be cleared before loading.
categories: List of tracing event categories to record.
timeout: Websocket timeout.
Returns:
loading_trace.LoadingTrace.
"""
page = page_track.PageTrack(connection)
request = request_track.RequestTrack(connection)
trace = tracing.TracingTrack(connection, categories=categories)
connection.SetUpMonitoring()
if clear_cache:
connection.ClearCache()
connection.SendAndIgnoreResponse('Page.navigate', {'url': url})
connection.StartMonitoring(timeout=timeout)
metadata = {
'date': datetime.datetime.utcnow().isoformat(),
'seconds_since_epoch': time.time()
}
return loading_trace.LoadingTrace(url, metadata, page, request, trace)
def LoadingTraceFromEvents(requests, page_events=None, trace_events=None):
"""Returns a LoadingTrace instance from a list of requests and page events."""
request = FakeRequestTrack(requests)
page_event_track = FakePageTrack(page_events if page_events else [])
if trace_events:
tracing_track = tracing.TracingTrack(None)
tracing_track.Handle('Tracing.dataCollected',
{'params': {'value': [e for e in trace_events]}})
else:
tracing_track = None
return loading_trace.LoadingTrace(
None, None, page_event_track, request, tracing_track)
def LoadingTraceFromEvents(requests, page_events=None, trace_events=None):
"""Returns a LoadingTrace instance from various events."""
request = FakeRequestTrack(requests)
page_event_track = FakePageTrack(page_events if page_events else [])
if trace_events is not None:
track = tracing_track.TracingTrack(None,
clovis_constants.DEFAULT_CATEGORIES)
track.Handle('Tracing.dataCollected',
{'params': {
'value': [e for e in trace_events]
}})
else:
track = None
return loading_trace.LoadingTrace(None, None, page_event_track, request,
track)
def LoadingTrace(events):
return loading_trace.LoadingTrace('http://a.com/', {},
page_track.PageTrack(None),
request_track.RequestTrack(None),
TracingTrack(events))