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https://issues.apache.org/jira/browse/FLINK-7065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16118352#comment-16118352
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ASF GitHub Bot commented on FLINK-7065:
---------------------------------------
Github user XuPingyong commented on a diff in the pull request:
https://github.com/apache/flink/pull/4273#discussion_r131918248
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/environment/StreamGraphExecutor.java
---
@@ -0,0 +1,52 @@
+/*
+ * 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.api.environment;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.api.common.Executor;
+import org.apache.flink.api.common.ExecutorFactory;
+import org.apache.flink.api.common.JobExecutionResult;
+import org.apache.flink.streaming.api.graph.StreamGraph;
+
+/**
+ * A StreamGraphExecutor executes a StreamGraph.
+ *
+ * <p>The specific implementation (such as the
org.apache.flink.client.LocalExecutor
+ * and org.apache.flink.client.RemoteExecutor) is created by {@link
ExecutorFactory}</p>
+ *
+ */
+@Internal
+public interface StreamGraphExecutor extends Executor {
+
+ /**
+ * Execute the given program.
+ *
+ * <p>If the executor has not been started before, then this method
will start the
+ * executor and stop it after the execution has completed. This implies
that one needs
+ * to explicitly start the executor for all programs where multiple
dataflow parts
+ * depend on each other. Otherwise, the previous parts will no longer
+ * be available, because the executor immediately shut down after the
execution.</p>
+ *
+ * @param streamGraph The streamGraph to execute.
+ * @return The execution result, containing for example the net runtime
of the program, and the accumulators.
+ *
+ * @throws Exception Thrown, if job submission caused an exception.
+ */
+ JobExecutionResult executeStreamGraph(StreamGraph streamGraph) throws
Exception;
--- End diff --
Like PlanExecutor， Exception is still be throwed, which may be mixed with
multi exception types.
> separate the flink-streaming-java module from flink-clients
> ------------------------------------------------------------
>
> Key: FLINK-7065
> URL: https://issues.apache.org/jira/browse/FLINK-7065
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Reporter: Xu Pingyong
> Assignee: Xu Pingyong
>
> Motivation:
> It is not good that "flink-streaming-java" module depends on
> "flink-clients". Flink-clients should see something in "flink-streaming-java".
> Related Change:
> 1. LocalStreamEnvironment and RemoteStreamEnvironment can also execute
> a job by the executors(LocalExecutor and RemoteExecutor). Introduce
> StreamGraphExecutor which executors a streamGraph as PlanExecutor executors
> the plan. StreamGraphExecutor and PlanExecutor all extend Executor.
> 2. Introduce StreamExecutionEnvironmentFactory which works similarly
> to ContextEnvironmentFactory in flink-clients.
> When a object of ContextEnvironmentFactory,
> OptimizerPlanEnvironmentFactory or PreviewPlanEnvironmentFactory is set into
> ExecutionEnvironment(by calling initializeContextEnvironment)， the relevant
> StreamEnvFactory is alsot set into StreamExecutionEnvironment. It is similar
> when calling unsetContext.
>
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