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.common.driver.resourcemanager;
020
021import org.apache.reef.util.BuilderUtils;
022import org.apache.reef.util.Optional;
023
024/**
025 * Default POJO implementation of NodeDescriptorEvent.
026 * Use newBuilder to construct an instance.
027 */
028public final class NodeDescriptorEventImpl implements NodeDescriptorEvent {
029  private final String identifier;
030  private final String hostName;
031  private final int port;
032  private final int memorySize;
033  private final Optional<String> rackName;
034
035  private NodeDescriptorEventImpl(final Builder builder) {
036    this.identifier = BuilderUtils.notNull(builder.identifier);
037    this.hostName = BuilderUtils.notNull(builder.hostName);
038    this.port = BuilderUtils.notNull(builder.port);
039    this.memorySize = BuilderUtils.notNull(builder.memorySize);
040    this.rackName = Optional.ofNullable(builder.rackName);
041  }
042
043  @Override
044  public String getIdentifier() {
045    return identifier;
046  }
047
048  @Override
049  public String getHostName() {
050    return hostName;
051  }
052
053  @Override
054  public int getPort() {
055    return port;
056  }
057
058  @Override
059  public int getMemorySize() {
060    return memorySize;
061  }
062
063  @Override
064  public Optional<String> getRackName() {
065    return rackName;
066  }
067
068  public static Builder newBuilder() {
069    return new Builder();
070  }
071
072  /**
073   * Builder used to create NodeDescriptorEvent instances.
074   */
075  public static final class Builder implements org.apache.reef.util.Builder<NodeDescriptorEvent> {
076    private String identifier;
077    private String hostName;
078    private Integer port;
079    private Integer memorySize;
080    private String rackName;
081
082    /**
083     * @see NodeDescriptorEvent#getIdentifier()
084     */
085    public Builder setIdentifier(final String identifier) {
086      this.identifier = identifier;
087      return this;
088    }
089
090    /**
091     * @see NodeDescriptorEvent#getHostName()
092     */
093    public Builder setHostName(final String hostName) {
094      this.hostName = hostName;
095      return this;
096    }
097
098    /**
099     * @see NodeDescriptorEvent#getPort()
100     */
101    public Builder setPort(final int port) {
102      this.port = port;
103      return this;
104    }
105
106    /**
107     * @see NodeDescriptorEvent#getMemorySize()
108     */
109    public Builder setMemorySize(final int memorySize) {
110      this.memorySize = memorySize;
111      return this;
112    }
113
114    /**
115     * @see NodeDescriptorEvent#getRackName()
116     */
117    public Builder setRackName(final String rackName) {
118      this.rackName = rackName;
119      return this;
120    }
121
122    @Override
123    public NodeDescriptorEvent build() {
124      return new NodeDescriptorEventImpl(this);
125    }
126  }
127}