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Diffstat (limited to 'adapters/dcae/message_router.py')
| -rwxr-xr-x | adapters/dcae/message_router.py | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/adapters/dcae/message_router.py b/adapters/dcae/message_router.py deleted file mode 100755 index e495331..0000000 --- a/adapters/dcae/message_router.py +++ /dev/null @@ -1,100 +0,0 @@ -# ------------------------------------------------------------------------- -# Copyright (c) 2015-2017 AT&T Intellectual Property -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# -# ------------------------------------------------------------------------- -# - -import requests -from osdf.utils.data_types import list_like -from osdf.operation.exceptions import MessageBusConfigurationException - - -class MessageRouterClient(object): - def __init__(self, - dmaap_url=None, - mr_host_base_urls=None, - topic=None, - consumer_group=None, consumer_id=None, - timeout_ms=15000, fetch_limit=1000, - userid=None, passwd=None): - """ - :param dmaap_url: protocol, host and port; mostly for UEB - (e.g. https://dcae-msrt-ftl.homer.att.com:3905/) - :param mr_host_base_urls: for DMaaP, we get a topic URL (base_url + events/topic_name) - (e.g. https://dcae-msrt-ftl.homer.att.com:3905/events/com.att.dcae.dmaap.FTL.SNIRO-CM-SCHEDULER-RESPONSE) - :param consumer_group: DMaaP/UEB consumer group (unique for each subscriber; required for GET) - :param consumer_id: DMaaP/UEB consumer ID (unique for each thread/process for a subscriber; required for GET) - :param timeout_ms: (optional, default 15 seconds or 15,000 ms) server-side timeout for GET request - :param fetch_limit: (optional, default 1000 messages per request for GET), ignored for "POST" - :param userid: (optional, userid for HTTP basic authentication) - :param passwd: (optional, password for HTTP basic authentication) - """ - mr_error = MessageBusConfigurationException - if dmaap_url is None: # definitely not DMaaP, so use UEB mode - self.is_dmaap = False - if not (mr_host_base_urls and list_like(mr_host_base_urls)): - raise mr_error("Not a DMaaP or UEB configuration") - if not topic: - raise mr_error("Invalid topic: '{}'",format(topic)) - self.topic_urls = ["{}/events/{}".format(base_url, topic) for base_url in mr_host_base_urls] - else: - self.is_dmaap = True - self.topic_urls = [dmaap_url] - - self.timeout_ms = timeout_ms - self.fetch_limit = fetch_limit - self.auth = (userid, passwd) if userid and passwd else None - self.consumer_group = consumer_group - self.consumer_id = consumer_id - - def get(self, outputjson=True): - """Fetch messages from message router (DMaaP or UEB) - :param outputjson: (optional, specifies if response is expected to be in json format), ignored for "POST" - :return: response as a json object (if outputjson is True) or as a string - """ - url_fmt = "{topic_url}/{cgroup}/{cid}?timeout={timeout_ms}&limit={limit}" - urls = [url_fmt.format(topic_url=x, timeout_ms=self.timeout_ms, limit=self.fetch_limit, - cgroup=self.consumer_group, cid=self.consumer_id) for x in self.topic_urls] - for url in urls[:-1]: - try: - return self.http_request(method='GET', url=url, outputjson=outputjson) - except: - pass - return self.http_request(method='GET', url=urls[-1], outputjson=outputjson) - - def post(self, msg, inputjson=True): - for url in self.topic_urls[:-1]: - try: - return self.http_request(method='POST', url=url, inputjson=inputjson, msg=msg) - except: - pass - return self.http_request(method='POST', url=self.topic_urls[-1], inputjson=inputjson, msg=msg) - - def http_request(self, url, method, inputjson=True, outputjson=True, msg=None, **kwargs): - """ - Perform the actual URL request (GET or POST), and do error handling - :param url: full URL (including topic, limit, timeout, etc.) - :param method: GET or POST - :param inputjson: Specify whether input is in json format (valid only for POST) - :param outputjson: Is response expected in a json format - :param msg: content to be posted (valid only for POST) - :return: response as a json object (if outputjson or POST) or as a string; None if error - """ - res = requests.request(url=url, method=method, auth=self.auth, **kwargs) - if res.status_code == requests.codes.ok: - return res.json() if outputjson or method == "POST" else res.content - else: - raise Exception("HTTP Response Error: code {}; headers:{}, content: {}".format( - res.status_code, res.headers, res.content)) |