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operation_tracker.py
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operation_tracker.py
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import functools
import time
import inspect
import copy
import sys
import os
import SocketServer
import pymongo
import pymongo.collection
import pymongo.cursor
import pymongo.helpers
from bson import SON
__all__ = ['queries', 'inserts', 'updates', 'removes', 'install_tracker',
'uninstall_tracker', 'reset', 'response_sizes']
_original_methods = {
'insert': pymongo.collection.Collection.insert,
'update': pymongo.collection.Collection.update,
'remove': pymongo.collection.Collection.remove,
'refresh': pymongo.cursor.Cursor._refresh,
'_unpack_response': pymongo.helpers._unpack_response,
}
queries = []
inserts = []
updates = []
removes = []
response_sizes = []
# Wrap helpers._unpack_response for getting response size
@functools.wraps(_original_methods['_unpack_response'])
def _unpack_response(response, *args, **kwargs):
result = _original_methods['_unpack_response'](
response,
*args,
**kwargs
)
response_sizes.append(sys.getsizeof(response) / 1024.0)
return result
# Wrap Cursor.insert for getting queries
@functools.wraps(_original_methods['insert'])
def _insert(collection_self, doc_or_docs, manipulate=True,
safe=False, check_keys=True, **kwargs):
start_time = time.time()
result = _original_methods['insert'](
collection_self,
doc_or_docs,
safe=safe,
check_keys=check_keys,
**kwargs
)
total_time = (time.time() - start_time) * 1000
__traceback_hide__ = True
stack_trace, internal = _tidy_stacktrace()
inserts.append({
'document': doc_or_docs,
'safe': safe,
'time': total_time,
'stack_trace': stack_trace,
'size': response_sizes[-1] if response_sizes else 0,
'internal': internal
})
return result
# Wrap Cursor.update for getting queries
@functools.wraps(_original_methods['update'])
def _update(collection_self, spec, document, upsert=False,
maniuplate=False, safe=False, multi=False, **kwargs):
start_time = time.time()
result = _original_methods['update'](
collection_self,
spec,
document,
upsert=upsert,
safe=safe,
multi=multi,
**kwargs
)
total_time = (time.time() - start_time) * 1000
__traceback_hide__ = True
stack_trace, internal = _tidy_stacktrace()
updates.append({
'document': document,
'upsert': upsert,
'multi': multi,
'spec': spec,
'safe': safe,
'time': total_time,
'stack_trace': stack_trace,
'size': response_sizes[-1] if response_sizes else 0,
'internal': internal
})
return result
# Wrap Cursor.remove for getting queries
@functools.wraps(_original_methods['remove'])
def _remove(collection_self, spec_or_id, safe=False, **kwargs):
start_time = time.time()
result = _original_methods['remove'](
collection_self,
spec_or_id,
safe=safe,
**kwargs
)
total_time = (time.time() - start_time) * 1000
__traceback_hide__ = True
stack_trace, internal = _tidy_stacktrace()
removes.append({
'spec_or_id': spec_or_id,
'safe': safe,
'time': total_time,
' ': stack_trace,
'size': response_sizes[-1] if response_sizes else 0,
'internal': internal
})
return result
# Wrap Cursor._refresh for getting queries
@functools.wraps(_original_methods['refresh'])
def _cursor_refresh(cursor_self):
# Look up __ private instance variables
def privar(name):
return getattr(cursor_self, '_Cursor__{0}'.format(name))
if privar('id') is not None:
# getMore not query - move on
return _original_methods['refresh'](cursor_self)
# NOTE: See pymongo/cursor.py+557 [_refresh()] and
# pymongo/message.py for where information is stored
# Time the actual query
start_time = time.time()
result = _original_methods['refresh'](cursor_self)
total_time = (time.time() - start_time) * 1000
query_son = privar('query_spec')()
if not isinstance(query_son, SON):
if "$query" not in query_son:
query_son = {"$query": query_son}
data = privar("data")
if data:
query_son["data"] = data
orderby = privar("ordering")
if orderby:
query_son["$orderby"] = orderby
hint = privar("hint")
if hint:
query_son["$hint"] = hint
snapshot = privar("snapshot")
if snapshot:
query_son["$snapshot"] = snapshot
maxScan = privar("max_scan")
if maxScan:
query_son["$maxScan"] = maxScan
__traceback_hide__ = True
stack_trace, internal = _tidy_stacktrace()
query_data = {
'time': total_time,
'operation': 'query',
'stack_trace': stack_trace,
'size': response_sizes[-1],
'data': copy.copy(privar('data')),
'internal': internal
}
# Collection in format <db_name>.<collection_name>
collection_name = privar('collection')
query_data['collection'] = collection_name.full_name.split('.')[1]
if query_data['collection'] == '$cmd':
query_data['operation'] = 'command'
# Handle count as a special case
if 'count' in query_son:
# Information is in a different format to a standar query
query_data['collection'] = query_son['count']
query_data['operation'] = 'count'
query_data['skip'] = query_son.get('skip')
query_data['limit'] = query_son.get('limit')
query_data['query'] = query_son['query']
else:
# Normal Query
query_data['skip'] = privar('skip')
query_data['limit'] = privar('limit')
query_data['query'] = query_son['$query']
query_data['ordering'] = _get_ordering(query_son)
queries.append(query_data)
return result
def install_tracker():
if pymongo.collection.Collection.insert != _insert:
pymongo.collection.Collection.insert = _insert
if pymongo.collection.Collection.update != _update:
pymongo.collection.Collection.update = _update
if pymongo.collection.Collection.remove != _remove:
pymongo.collection.Collection.remove = _remove
if pymongo.cursor.Cursor._refresh != _cursor_refresh:
pymongo.cursor.Cursor._refresh = _cursor_refresh
if pymongo.helpers._unpack_response != _unpack_response:
pymongo.helpers._unpack_response = _unpack_response
def uninstall_tracker():
if pymongo.collection.Collection.insert == _insert:
pymongo.collection.Collection.insert = _original_methods['insert']
if pymongo.collection.Collection.update == _update:
pymongo.collection.Collection.update = _original_methods['update']
if pymongo.collection.Collection.remove == _remove:
pymongo.collection.Collection.remove = _original_methods['remove']
if pymongo.cursor.Cursor._refresh == _cursor_refresh:
pymongo.cursor.Cursor._refresh = _original_methods['cursor_refresh']
if pymongo.helpers._unpack_response == _unpack_response:
pymongo.helpers._unpack_response = _original_methods['_unpack_response']
def reset():
global queries, inserts, updates, removes, response_sizes
queries = []
inserts = []
updates = []
removes = []
response_sizes = []
def _get_ordering(son):
"""Helper function to extract formatted ordering from dict.
"""
def fmt(field, direction):
return '{0}{1}'.format({-1: '-', 1: '+'}[direction], field)
if '$orderby' in son:
return ', '.join(fmt(f, d) for f, d in son['$orderby'].items())
def _tidy_stacktrace():
"""
Tidy the stack_trace
"""
socketserver_path = os.path.realpath(os.path.dirname(SocketServer.__file__))
pymongo_path = os.path.realpath(os.path.dirname(pymongo.__file__))
paths = ['/site-packages/', '/flaskext/', socketserver_path, pymongo_path]
internal = False
# Check html templates
fnames = []
for i in xrange(100):
try:
fname = sys._getframe(i).f_code.co_filename
if 'html' in fname:
fnames.append(fname)
except:
break
fnames = list(set(fnames))
trace = []
for path in fnames:
if 'flask_debugtoolbar' in path:
internal = True
trace.append((path, '?', '?', '?', False))
if trace:
return trace, internal
stack = inspect.stack()
reversed(stack)
trace = []
for frame, path, line_no, func_name, text in (f[:5] for f in stack):
s_path = os.path.realpath(path)
# Support hiding of frames -- used in various utilities that provide
# inspection.
if '__traceback_hide__' in frame.f_locals:
continue
hidden = False
if func_name == "<genexpr>":
hidden = True
if any([p for p in paths if p in s_path]):
hidden = True
if not text:
text = ''
else:
text = (''.join(text)).strip()
trace.append((path, line_no, func_name, text, hidden))
return trace, internal