| /* |
| * 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.client.program; |
| |
| import org.apache.flink.api.common.JobExecutionResult; |
| import org.apache.flink.api.common.JobID; |
| import org.apache.flink.api.common.Plan; |
| import org.apache.flink.api.java.ExecutionEnvironment; |
| import org.apache.flink.api.java.ExecutionEnvironmentFactory; |
| import org.apache.flink.optimizer.Optimizer; |
| import org.apache.flink.optimizer.dag.DataSinkNode; |
| |
| import java.util.List; |
| |
| /** |
| * Environment to extract the pre-optimized plan. |
| */ |
| public final class PreviewPlanEnvironment extends ExecutionEnvironment { |
| |
| List<DataSinkNode> previewPlan; |
| |
| String preview; |
| |
| Plan plan; |
| |
| @Override |
| public JobExecutionResult executeInternal(String jobName, boolean detached) throws Exception { |
| this.plan = createProgramPlan(jobName); |
| this.previewPlan = Optimizer.createPreOptimizedPlan(plan); |
| |
| // do not go on with anything now! |
| throw new OptimizerPlanEnvironment.ProgramAbortException(); |
| } |
| |
| @Override |
| public void cancel(JobID jobId) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void stop() { |
| |
| } |
| |
| @Override |
| public String getExecutionPlan() throws Exception { |
| Plan plan = createProgramPlan("unused"); |
| this.previewPlan = Optimizer.createPreOptimizedPlan(plan); |
| |
| // do not go on with anything now! |
| throw new OptimizerPlanEnvironment.ProgramAbortException(); |
| } |
| |
| @Override |
| public void startNewSession() { |
| } |
| |
| public void setAsContext() { |
| ExecutionEnvironmentFactory factory = new ExecutionEnvironmentFactory() { |
| @Override |
| public ExecutionEnvironment createExecutionEnvironment() { |
| return PreviewPlanEnvironment.this; |
| } |
| }; |
| initializeContextEnvironment(factory); |
| } |
| |
| public void unsetAsContext() { |
| resetContextEnvironment(); |
| } |
| |
| public void setPreview(String preview) { |
| this.preview = preview; |
| } |
| |
| public Plan getPlan() { |
| return plan; |
| } |
| } |