huijunwu closed pull request #2274: Topology package fetcher. URL: https://github.com/apache/incubator-heron/pull/2274
This is a PR merged from a forked repository. As GitHub hides the original diff on merge, it is displayed below for the sake of provenance: As this is a foreign pull request (from a fork), the diff is supplied below (as it won't show otherwise due to GitHub magic): diff --git a/heron/tools/cli/src/python/fetcher/__init__.py b/heron/tools/cli/src/python/fetcher/__init__.py new file mode 100644 index 0000000000..7b2d7bdfda --- /dev/null +++ b/heron/tools/cli/src/python/fetcher/__init__.py @@ -0,0 +1,3 @@ +''' __init__ ''' +from base_fetcher import BaseFetcher +from local_fetcher import LocalFetcher diff --git a/heron/tools/cli/src/python/fetcher/base_fetcher.py b/heron/tools/cli/src/python/fetcher/base_fetcher.py new file mode 100644 index 0000000000..d3ef6ca5c8 --- /dev/null +++ b/heron/tools/cli/src/python/fetcher/base_fetcher.py @@ -0,0 +1,25 @@ +# Copyright 2017 Twitter. All rights reserved. +# +# 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. +'''base_fetcher.py''' +import abc + +class BaseFetcher(object): + """Result class""" + def __init__(self, protocol, location): + self.protocol = protocol + self.location = location + + @abc.abstractmethod + def fetch(self): + pass diff --git a/heron/tools/cli/src/python/fetcher/fetcher.py b/heron/tools/cli/src/python/fetcher/fetcher.py new file mode 100644 index 0000000000..2fe7f11ae2 --- /dev/null +++ b/heron/tools/cli/src/python/fetcher/fetcher.py @@ -0,0 +1,38 @@ +# Copyright 2017 Twitter. All rights reserved. +# +# 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. +'''dispatcher.py''' +import heron.tools.cli.src.python.fetcher as fetcher + +all_fetchers = [fetcher.LocalFetcher] + +def extract(package): + ''' extract protocol and package location ''' + sep = "://" + if sep not in package: + return "file", package + else: + chunks = package.split(sep) + if len(chunks) != 2 or '' in chunks: + raise Exception( + "Failed to get protocol of the package location: %s" % package) + else: + return chunks[0], chunks[1] + +# pylint: disable=dangerous-default-value +def fetch(package, fetchers=all_fetchers): + protocol, loc = extract(package) + for f in fetchers: + if f.protocol == protocol: + return f.fetch(loc) + raise Exception("No available fetcher for protocol %s" % protocol) diff --git a/heron/tools/cli/src/python/fetcher/local_fetcher.py b/heron/tools/cli/src/python/fetcher/local_fetcher.py new file mode 100644 index 0000000000..9dfba40c45 --- /dev/null +++ b/heron/tools/cli/src/python/fetcher/local_fetcher.py @@ -0,0 +1,23 @@ +# Copyright 2017 Twitter. All rights reserved. +# +# 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. +'''local_fetcher.py''' +from heron.tools.cli.src.python.fetcher import BaseFetcher + +class LocalFetcher(BaseFetcher): + """Result class""" + def __init__(self, protocol, location): + super(LocalFetcher, self).__init__(protocol, location) + + def fetch(self): + return self.location diff --git a/heron/tools/cli/src/python/submit.py b/heron/tools/cli/src/python/submit.py index b0ca0380c5..b61d843b71 100644 --- a/heron/tools/cli/src/python/submit.py +++ b/heron/tools/cli/src/python/submit.py @@ -23,6 +23,7 @@ from heron.tools.cli.src.python.result import SimpleResult, Status import heron.tools.cli.src.python.args as cli_args import heron.tools.cli.src.python.execute as execute +import heron.tools.cli.src.python.fetcher.fetcher as fetcher import heron.tools.cli.src.python.jars as jars import heron.tools.cli.src.python.opts as opts import heron.tools.cli.src.python.result as result @@ -355,6 +356,11 @@ def run(command, parser, cl_args, unknown_args): # get the topology file name topology_file = cl_args['topology-file-name'] + try: + topology_file = fetcher.fetch(topology_file) + except Exception: + pass # fixme + # check to see if the topology file exists if not os.path.isfile(topology_file): err_context = "Topology file '%s' does not exist" % topology_file ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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