32e8c3da61
* Implemented Worker to be started on remote host for handling tasks request. * Implemented WorkerTaskExecutor that proxies tasks requests to remote workers. * Implemented Proxy that is used for consuming and publishing messages by Worker and Executor. * Added worker-based engine and worker task executor. * Added kombu dependency to requirements. * Added worker-based flow example. * Added unit-tests for worker-based flow components. Implements: blueprint worker-based-engine Change-Id: I8c6859ba4a1a56c2592e3d67cdfb8968b13ee99c
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2014 Yahoo! Inc. All Rights Reserved.
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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 json
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import os
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import subprocess
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import sys
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import tempfile
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self_dir = os.path.abspath(os.path.dirname(__file__))
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sys.path.insert(0, self_dir)
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import example_utils # noqa
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def _path_to(name):
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return os.path.abspath(os.path.join(os.path.dirname(__file__),
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'worker_based', name))
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def run_test(name, config):
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cmd = [sys.executable, _path_to(name), config]
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process = subprocess.Popen(cmd, stdin=None, stdout=subprocess.PIPE,
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stderr=sys.stderr)
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return process, cmd
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def main():
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tmp_path = None
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try:
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tmp_path = tempfile.mkdtemp(prefix='worker-based-example-')
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config = json.dumps({
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'transport': 'filesystem',
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'transport_options': {
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'data_folder_in': tmp_path,
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'data_folder_out': tmp_path
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}
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})
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print('Run worker.')
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worker_process, _ = run_test('worker.py', config)
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print('Run flow.')
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flow_process, flow_cmd = run_test('flow.py', config)
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stdout, _ = flow_process.communicate()
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rc = flow_process.returncode
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if rc != 0:
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raise RuntimeError("Could not run %s [%s]" % (flow_cmd, rc))
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print(stdout.decode())
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print('Flow finished.')
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print('Stop worker.')
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worker_process.terminate()
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finally:
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if tmp_path is not None:
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example_utils.rm_path(tmp_path)
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if __name__ == '__main__':
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main()
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