Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.runtime.hdinsight.client.yarnrest;
020
021import org.codehaus.jackson.annotate.JsonProperty;
022import org.codehaus.jackson.map.ObjectMapper;
023
024import java.io.IOException;
025import java.io.StringWriter;
026
027/**
028 * Represents the resoure field in the YARN REST API.
029 * For detailed information, please refer to
030 * https://hadoop.apache.org/docs/r2.6.0/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html
031 */
032public final class Resource {
033
034  private static final String RESOURCE = "resource";
035  private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
036  private int memory;
037  private int vCores;
038
039  @JsonProperty(Constants.MEMORY)
040  public int getMemory() {
041    return this.memory;
042  }
043
044  public Resource setMemory(final int memory) {
045    this.memory = memory;
046    return this;
047  }
048
049  @JsonProperty(Constants.VCORES)
050  public int getvCores() {
051    return this.vCores;
052  }
053
054  public Resource setvCores(final int vCores) {
055    this.vCores = vCores;
056    return this;
057  }
058
059  @Override
060  public String toString() {
061    final StringWriter writer = new StringWriter();
062    final String objectString;
063    try {
064      OBJECT_MAPPER.writeValue(writer, this);
065      objectString = writer.toString();
066    } catch (final IOException e) {
067      throw new RuntimeException("Exception while serializing Resource: " + e);
068    }
069
070    return RESOURCE + objectString;
071  }
072}