moto/moto/xray/responses.py
2017-09-23 00:05:25 +01:00

134 lines
4.7 KiB
Python

from __future__ import unicode_literals
import json
import six
import datetime
from moto.core.responses import BaseResponse
from moto.core.utils import camelcase_to_underscores, method_names_from_class
from werkzeug.exceptions import HTTPException
from six.moves.urllib.parse import urlsplit
from .models import xray_backends
from .exceptions import AWSError, BadSegmentException
class XRayResponse(BaseResponse):
def _error(self, code, message):
return json.dumps({'__type': code, 'message': message}), dict(status=400)
@property
def xray_backend(self):
return xray_backends[self.region]
@property
def request_params(self):
try:
return json.loads(self.body)
except ValueError:
return {}
def _get_param(self, param, default=None):
return self.request_params.get(param, default)
def call_action(self):
# Amazon is just calling urls like /TelemetryRecords etc...
action = urlsplit(self.uri).path.lstrip('/')
action = camelcase_to_underscores(action)
headers = self.response_headers
method_names = method_names_from_class(self.__class__)
if action in method_names:
method = getattr(self, action)
try:
response = method()
except HTTPException as http_error:
response = http_error.description, dict(status=http_error.code)
if isinstance(response, six.string_types):
return 200, headers, response
else:
body, new_headers = response
status = new_headers.get('status', 200)
headers.update(new_headers)
# Cast status to string
if "status" in headers:
headers['status'] = str(headers['status'])
return status, headers, body
raise NotImplementedError(
"The {0} action has not been implemented".format(action))
# PutTelemetryRecords
def telemetry_records(self):
try:
self.xray_backend.add_telemetry_records(self.request_params)
except AWSError as err:
return err.response()
return ''
# PutTraceSegments
def trace_segments(self):
docs = self._get_param('TraceSegmentDocuments')
if docs is None:
msg = 'Parameter TraceSegmentDocuments is missing'
return json.dumps({'__type': 'MissingParameter', 'message': msg}), dict(status=400)
# Raises an exception that contains info about a bad segment,
# the object also has a to_dict() method
bad_segments = []
for doc in docs:
try:
self.xray_backend.process_segment(doc)
except BadSegmentException as bad_seg:
bad_segments.append(bad_seg)
except Exception as err:
return json.dumps({'__type': 'InternalFailure', 'message': str(err)}), dict(status=500)
result = {'UnprocessedTraceSegments': [x.to_dict() for x in bad_segments]}
return json.dumps(result)
# GetTraceSummaries
def trace_summaries(self):
start_time = self._get_param('StartTime')
end_time = self._get_param('EndTime')
if start_time is None:
msg = 'Parameter StartTime is missing'
return json.dumps({'__type': 'MissingParameter', 'message': msg}), dict(status=400)
if end_time is None:
msg = 'Parameter EndTime is missing'
return json.dumps({'__type': 'MissingParameter', 'message': msg}), dict(status=400)
filter_expression = self._get_param('FilterExpression')
sampling = self._get_param('Sampling', 'false') == 'true'
try:
start_time = datetime.datetime.fromtimestamp(int(start_time))
end_time = datetime.datetime.fromtimestamp(int(end_time))
except ValueError:
msg = 'start_time and end_time are not integers'
return json.dumps({'__type': 'InvalidParameterValue', 'message': msg}), dict(status=400)
except Exception as err:
return json.dumps({'__type': 'InternalFailure', 'message': str(err)}), dict(status=500)
try:
result = self.xray_backend.get_trace_summary(start_time, end_time, filter_expression, sampling)
except AWSError as err:
return err.response()
except Exception as err:
return json.dumps({'__type': 'InternalFailure', 'message': str(err)}), dict(status=500)
return json.dumps(result)
# BatchGetTraces
def traces(self):
raise NotImplementedError()
# GetServiceGraph
def service_graph(self):
raise NotImplementedError()
# GetTraceGraph
def trace_graph(self):
raise NotImplementedError()