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ASF GitHub Bot commented on FLINK-5886: --------------------------------------- Github user zentol commented on a diff in the pull request: https://github.com/apache/flink/pull/3838#discussion_r117724857 --- Diff: flink-libraries/flink-streaming-python/src/main/java/org/apache/flink/streaming/python/api/environment/PythonStreamExecutionEnvironment.java --- @@ -0,0 +1,442 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. + */ +package org.apache.flink.streaming.python.api.environment; + +import org.apache.flink.annotation.Public; +import org.apache.flink.api.common.JobExecutionResult; +import org.apache.flink.api.common.cache.DistributedCache; +import org.apache.flink.api.java.tuple.Tuple2; +import org.apache.flink.api.java.typeutils.TypeExtractor; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.core.fs.FileSystem; +import org.apache.flink.core.fs.Path; +import org.apache.flink.runtime.filecache.FileCache; +import org.apache.flink.streaming.api.CheckpointingMode; +import org.apache.flink.streaming.api.environment.LocalStreamEnvironment; +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.streaming.api.functions.source.SourceFunction; +import org.apache.flink.streaming.python.api.datastream.PythonDataStream; +import org.apache.flink.streaming.python.api.functions.PythonGeneratorFunction; +import org.apache.flink.streaming.python.api.functions.PythonIteratorFunction; +import org.apache.flink.streaming.python.api.functions.UtilityFunctions; +import org.apache.flink.streaming.python.util.serialization.PyObjectSerializer; +import org.python.core.PyObject; +import org.python.core.PyString; +import org.python.core.PyInteger; +import org.python.core.PyLong; +import org.python.core.PyUnicode; +import org.python.core.PyTuple; +import org.python.core.PyObjectDerived; +import org.python.core.PyInstance; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.net.URI; +import java.net.URISyntaxException; +import java.nio.file.Paths; +import java.util.Collection; +import java.util.Iterator; +import java.util.Random; + + +/** + * A thin wrapper layer over {@link StreamExecutionEnvironment}. + * + * <p>The PythonStreamExecutionEnvironment is the context in which a streaming program is executed. + * </p> + * + * <p>The environment provides methods to control the job execution (such as setting the parallelism + * or the fault tolerance/checkpointing parameters) and to interact with the outside world + * (data access).</p> + */ +@Public --- End diff -- mark as `@PublicEvolving`. > Python API for streaming applications > ------------------------------------- > > Key: FLINK-5886 > URL: https://issues.apache.org/jira/browse/FLINK-5886 > Project: Flink > Issue Type: New Feature > Components: Python API > Reporter: Zohar Mizrahi > Assignee: Zohar Mizrahi > > A work in progress to provide python interface for Flink streaming APIs. The > core technology is based on jython and thus imposes two limitations: a. user > defined functions cannot use python extensions. b. the python version is 2.x > The branch is based on Flink release 1.2.0, as can be found here: > https://github.com/zohar-pm/flink/tree/python-streaming > In order to test it, someone can use IntelliJ IDE. Assuming IntelliJ was > setup properly (see: > https://ci.apache.org/projects/flink/flink-docs-release-1.3/internals/ide_setup.html), > one can run/debug {{org.apache.flink.python.api.PythonStreamBinderTest}}, > which in return will execute all the tests under > {{/Users/zohar/dev/pm-flink/flink-libraries/flink-python/src/test/python/org/apache/flink/python/api/streaming}} -- This message was sent by Atlassian JIRA (v6.3.15#6346)