9eb58eea41
The pagination for this endpoint has been modified to more closely model the real AWS behavior: * Log Groups are now sorted alphabetically by `logGroupName`. * `nextToken` is now a string containing the last `logGroupName` in the current response. * Specifying an invalid `nextToken` does not generate an error, but does return an empty group list. * `nextToken` is not included in the response if there are no additional items to return. Fixes #3395
214 lines
7.3 KiB
Python
214 lines
7.3 KiB
Python
from moto.core.responses import BaseResponse
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from .models import logs_backends
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import json
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# See http://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/Welcome.html
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class LogsResponse(BaseResponse):
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@property
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def logs_backend(self):
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return logs_backends[self.region]
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@property
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def request_params(self):
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try:
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return json.loads(self.body)
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except ValueError:
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return {}
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def _get_param(self, param, if_none=None):
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return self.request_params.get(param, if_none)
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def create_log_group(self):
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log_group_name = self._get_param("logGroupName")
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tags = self._get_param("tags")
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assert 1 <= len(log_group_name) <= 512 # TODO: assert pattern
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self.logs_backend.create_log_group(log_group_name, tags)
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return ""
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def delete_log_group(self):
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log_group_name = self._get_param("logGroupName")
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self.logs_backend.delete_log_group(log_group_name)
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return ""
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def describe_log_groups(self):
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log_group_name_prefix = self._get_param("logGroupNamePrefix")
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next_token = self._get_param("nextToken")
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limit = self._get_param("limit", 50)
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assert limit <= 50
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groups, next_token = self.logs_backend.describe_log_groups(
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limit, log_group_name_prefix, next_token
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)
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result = {"logGroups": groups}
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if next_token:
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result["nextToken"] = next_token
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return json.dumps(result)
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def create_log_stream(self):
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log_group_name = self._get_param("logGroupName")
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log_stream_name = self._get_param("logStreamName")
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self.logs_backend.create_log_stream(log_group_name, log_stream_name)
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return ""
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def delete_log_stream(self):
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log_group_name = self._get_param("logGroupName")
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log_stream_name = self._get_param("logStreamName")
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self.logs_backend.delete_log_stream(log_group_name, log_stream_name)
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return ""
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def describe_log_streams(self):
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log_group_name = self._get_param("logGroupName")
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log_stream_name_prefix = self._get_param("logStreamNamePrefix", "")
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descending = self._get_param("descending", False)
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limit = self._get_param("limit", 50)
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assert limit <= 50
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next_token = self._get_param("nextToken")
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order_by = self._get_param("orderBy", "LogStreamName")
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assert order_by in {"LogStreamName", "LastEventTime"}
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if order_by == "LastEventTime":
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assert not log_stream_name_prefix
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streams, next_token = self.logs_backend.describe_log_streams(
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descending,
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limit,
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log_group_name,
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log_stream_name_prefix,
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next_token,
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order_by,
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)
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return json.dumps({"logStreams": streams, "nextToken": next_token})
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def put_log_events(self):
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log_group_name = self._get_param("logGroupName")
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log_stream_name = self._get_param("logStreamName")
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log_events = self._get_param("logEvents")
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sequence_token = self._get_param("sequenceToken")
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next_sequence_token = self.logs_backend.put_log_events(
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log_group_name, log_stream_name, log_events, sequence_token
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)
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return json.dumps({"nextSequenceToken": next_sequence_token})
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def get_log_events(self):
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log_group_name = self._get_param("logGroupName")
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log_stream_name = self._get_param("logStreamName")
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start_time = self._get_param("startTime")
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end_time = self._get_param("endTime")
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limit = self._get_param("limit", 10000)
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assert limit <= 10000
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next_token = self._get_param("nextToken")
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start_from_head = self._get_param("startFromHead", False)
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(
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events,
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next_backward_token,
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next_forward_token,
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) = self.logs_backend.get_log_events(
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log_group_name,
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log_stream_name,
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start_time,
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end_time,
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limit,
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next_token,
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start_from_head,
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)
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return json.dumps(
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{
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"events": events,
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"nextBackwardToken": next_backward_token,
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"nextForwardToken": next_forward_token,
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}
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)
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def filter_log_events(self):
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log_group_name = self._get_param("logGroupName")
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log_stream_names = self._get_param("logStreamNames", [])
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start_time = self._get_param("startTime")
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# impl, see: http://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/FilterAndPatternSyntax.html
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filter_pattern = self._get_param("filterPattern")
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interleaved = self._get_param("interleaved", False)
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end_time = self._get_param("endTime")
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limit = self._get_param("limit", 10000)
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assert limit <= 10000
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next_token = self._get_param("nextToken")
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events, next_token, searched_streams = self.logs_backend.filter_log_events(
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log_group_name,
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log_stream_names,
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start_time,
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end_time,
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limit,
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next_token,
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filter_pattern,
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interleaved,
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)
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return json.dumps(
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{
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"events": events,
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"nextToken": next_token,
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"searchedLogStreams": searched_streams,
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}
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)
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def put_retention_policy(self):
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log_group_name = self._get_param("logGroupName")
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retention_in_days = self._get_param("retentionInDays")
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self.logs_backend.put_retention_policy(log_group_name, retention_in_days)
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return ""
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def delete_retention_policy(self):
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log_group_name = self._get_param("logGroupName")
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self.logs_backend.delete_retention_policy(log_group_name)
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return ""
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def list_tags_log_group(self):
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log_group_name = self._get_param("logGroupName")
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tags = self.logs_backend.list_tags_log_group(log_group_name)
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return json.dumps({"tags": tags})
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def tag_log_group(self):
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log_group_name = self._get_param("logGroupName")
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tags = self._get_param("tags")
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self.logs_backend.tag_log_group(log_group_name, tags)
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return ""
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def untag_log_group(self):
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log_group_name = self._get_param("logGroupName")
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tags = self._get_param("tags")
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self.logs_backend.untag_log_group(log_group_name, tags)
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return ""
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def describe_subscription_filters(self):
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log_group_name = self._get_param("logGroupName")
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subscription_filters = self.logs_backend.describe_subscription_filters(
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log_group_name
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)
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return json.dumps({"subscriptionFilters": subscription_filters})
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def put_subscription_filter(self):
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log_group_name = self._get_param("logGroupName")
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filter_name = self._get_param("filterName")
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filter_pattern = self._get_param("filterPattern")
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destination_arn = self._get_param("destinationArn")
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role_arn = self._get_param("roleArn")
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self.logs_backend.put_subscription_filter(
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log_group_name, filter_name, filter_pattern, destination_arn, role_arn
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)
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return ""
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def delete_subscription_filter(self):
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log_group_name = self._get_param("logGroupName")
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filter_name = self._get_param("filterName")
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self.logs_backend.delete_subscription_filter(log_group_name, filter_name)
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return ""
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