org.apache.flink.runtime.rest.handler.legacy.JobPlanHandler Maven / Gradle / Ivy
/*
* 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.runtime.rest.handler.legacy;
import org.apache.flink.runtime.executiongraph.AccessExecutionGraph;
import org.apache.flink.runtime.webmonitor.history.ArchivedJson;
import org.apache.flink.runtime.webmonitor.history.JsonArchivist;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
/**
* Request handler that returns the JSON program plan of a job graph.
*/
public class JobPlanHandler extends AbstractExecutionGraphRequestHandler {
private static final String JOB_PLAN_REST_PATH = "/jobs/:jobid/plan";
public JobPlanHandler(ExecutionGraphCache executionGraphHolder, Executor executor) {
super(executionGraphHolder, executor);
}
@Override
public String[] getPaths() {
return new String[]{JOB_PLAN_REST_PATH};
}
@Override
public CompletableFuture handleRequest(AccessExecutionGraph graph, Map params) {
return CompletableFuture.completedFuture(graph.getJsonPlan());
}
/**
* Archivist for the JobPlanHandler.
*/
public static class JobPlanJsonArchivist implements JsonArchivist {
@Override
public Collection archiveJsonWithPath(AccessExecutionGraph graph) throws IOException {
String path = JOB_PLAN_REST_PATH
.replace(":jobid", graph.getJobID().toString());
String json = graph.getJsonPlan();
return Collections.singletonList(new ArchivedJson(path, json));
}
}
}