ArchivedExecutionGraphBuilder.java example

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/*
 * 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.webmonitor.utils;

import org.apache.flink.api.common.ArchivedExecutionConfig;
import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.accumulators.StringifiedAccumulatorResult;
import org.apache.flink.runtime.executiongraph.ArchivedExecutionGraph;
import org.apache.flink.runtime.executiongraph.ArchivedExecutionJobVertex;
import org.apache.flink.runtime.jobgraph.JobStatus;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import org.apache.flink.util.Preconditions;
import org.apache.flink.util.SerializedValue;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Random;

public class ArchivedExecutionGraphBuilder {

	private static final Random RANDOM = new Random();

	private JobID jobID;
	private String jobName;
	private Map<JobVertexID, ArchivedExecutionJobVertex> tasks;
	private List<ArchivedExecutionJobVertex> verticesInCreationOrder;
	private long[] stateTimestamps;
	private JobStatus state;
	private String failureCause;
	private String jsonPlan;
	private StringifiedAccumulatorResult[] archivedUserAccumulators;
	private ArchivedExecutionConfig archivedExecutionConfig;
	private boolean isStoppable;
	private Map<String, SerializedValue<Object>> serializedUserAccumulators;

	public ArchivedExecutionGraphBuilder setJobID(JobID jobID) {
		this.jobID = jobID;
		return this;
	}

	public ArchivedExecutionGraphBuilder setJobName(String jobName) {
		this.jobName = jobName;
		return this;
	}

	public ArchivedExecutionGraphBuilder setTasks(Map<JobVertexID, ArchivedExecutionJobVertex> tasks) {
		this.tasks = tasks;
		return this;
	}

	public ArchivedExecutionGraphBuilder setVerticesInCreationOrder(List<ArchivedExecutionJobVertex> verticesInCreationOrder) {
		this.verticesInCreationOrder = verticesInCreationOrder;
		return this;
	}

	public ArchivedExecutionGraphBuilder setStateTimestamps(long[] stateTimestamps) {
		Preconditions.checkArgument(stateTimestamps.length == JobStatus.values().length);
		this.stateTimestamps = stateTimestamps;
		return this;
	}

	public ArchivedExecutionGraphBuilder setState(JobStatus state) {
		this.state = state;
		return this;
	}

	public ArchivedExecutionGraphBuilder setFailureCause(String failureCause) {
		this.failureCause = failureCause;
		return this;
	}

	public ArchivedExecutionGraphBuilder setJsonPlan(String jsonPlan) {
		this.jsonPlan = jsonPlan;
		return this;
	}

	public ArchivedExecutionGraphBuilder setArchivedUserAccumulators(StringifiedAccumulatorResult[] archivedUserAccumulators) {
		this.archivedUserAccumulators = archivedUserAccumulators;
		return this;
	}

	public ArchivedExecutionGraphBuilder setArchivedExecutionConfig(ArchivedExecutionConfig archivedExecutionConfig) {
		this.archivedExecutionConfig = archivedExecutionConfig;
		return this;
	}

	public ArchivedExecutionGraphBuilder setStoppable(boolean stoppable) {
		isStoppable = stoppable;
		return this;
	}

	public ArchivedExecutionGraphBuilder setSerializedUserAccumulators(Map<String, SerializedValue<Object>> serializedUserAccumulators) {
		this.serializedUserAccumulators = serializedUserAccumulators;
		return this;
	}

	public ArchivedExecutionGraph build() {
		Preconditions.checkNotNull(tasks, "Tasks must not be null.");
		JobID jobID = this.jobID != null ? this.jobID : new JobID();
		String jobName = this.jobName != null ? this.jobName : "job_" + RANDOM.nextInt();
		return new ArchivedExecutionGraph(
			jobID,
			jobName,
			tasks,
			verticesInCreationOrder != null ? verticesInCreationOrder : new ArrayList<>(tasks.values()),
			stateTimestamps != null ? stateTimestamps : new long[JobStatus.values().length],
			state != null ? state : JobStatus.FINISHED,
			failureCause != null ? failureCause : "(null)",
			jsonPlan != null ? jsonPlan : "{\"jobid\":\"" + jobID + "\", \"name\":\"" + jobName + "\", \"nodes\":[]}",
			archivedUserAccumulators != null ? archivedUserAccumulators : new StringifiedAccumulatorResult[0],
			serializedUserAccumulators != null ? serializedUserAccumulators : Collections.<String, SerializedValue<Object>>emptyMap(),
			archivedExecutionConfig != null ? archivedExecutionConfig : new ArchivedExecutionConfigBuilder().build(),
			isStoppable,
			null,
			null
		);
	}
}