106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
# Copyright (c) 2013 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import time
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from oslo_log import log as logging
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from murano.api import v1
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from murano.common import wsgi
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from murano.db.services import stats
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LOG = logging.getLogger(__name__)
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class RequestStatisticsCollection(object):
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request_count = 0
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error_count = 0
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average_time = 0.0
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requests_per_tenant = {}
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errors_per_tenant = {}
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def add_api_request(self, tenant, ex_time):
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self.average_time = (self.average_time * self.request_count +
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ex_time) / (self.request_count + 1)
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if tenant:
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tenant_count = self.requests_per_tenant.get(tenant, 0)
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tenant_count += 1
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self.requests_per_tenant[tenant] = tenant_count
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def add_api_error(self, tenant, ex_time):
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self.average_time = (self.average_time * self.request_count +
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ex_time) / (self.request_count + 1)
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if tenant:
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tenant_count = self.errors_per_tenant.get(tenant, 0)
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tenant_count += 1
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self.errors_per_tenant[tenant] = tenant_count
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def stats_count(api, method):
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def wrapper(func):
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def wrap(*args, **kwargs):
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try:
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ts = time.time()
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result = func(*args, **kwargs)
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te = time.time()
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tenant = args[1].context.tenant
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update_count(api, method, te - ts,
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tenant)
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return result
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except Exception:
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te = time.time()
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tenant = args[1].context.tenant
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LOG.exception('API {api} method {method} raised an '
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'exception'.format(api=api, method=method))
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update_error_count(api, method, te - te, tenant)
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raise
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return wrap
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return wrapper
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def update_count(api, method, ex_time, tenant=None):
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LOG.debug("Updating count stats for {api}, {method} on object {object}"
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.format(api=api, method=method, object=v1.stats))
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v1.stats.add_api_request(tenant, ex_time)
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v1.stats.request_count += 1
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def update_error_count(api, method, ex_time, tenant=None):
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LOG.debug("Updating count stats for {api}, {method} on object "
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"{object}".format(api=api, method=method, object=v1.stats))
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v1.stats.add_api_error(tenant, ex_time)
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v1.stats.error_count += 1
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v1.stats.request_count += 1
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def init_stats():
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if not v1.stats:
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v1.stats = RequestStatisticsCollection()
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class Controller(object):
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def get(self, request):
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model = stats.Statistics()
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entries = model.get_all()
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ent_list = []
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for entry in entries:
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ent_list.append(entry.to_dict())
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return ent_list
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def create_resource():
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return wsgi.Resource(Controller())
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