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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.giraph.master;
20  
21  import com.facebook.swift.codec.ThriftField;
22  import com.facebook.swift.codec.ThriftStruct;
23  
24  /**
25   * Stores information about master progress
26   */
27  @ThriftStruct
28  public final class MasterProgress {
29    /** Singleton instance for everyone to use */
30    private static final MasterProgress INSTANCE = new MasterProgress();
31  
32    /** How many vertex input splits were created */
33    private int vertexInputSplitCount = -1;
34    /** How many edge input splits were created */
35    private int edgeInputSplitCount = -1;
36  
37    /**
38     * Public constructor for thrift to create us.
39     * Please use MasterProgress.get() to get the static instance.
40     */
41    public MasterProgress() {
42    }
43  
44    /**
45     * Get singleton instance of MasterProgress.
46     *
47     * @return MasterProgress singleton instance
48     */
49    public static MasterProgress get() {
50      return INSTANCE;
51    }
52  
53    @ThriftField(1)
54    public int getVertexInputSplitCount() {
55      return vertexInputSplitCount;
56    }
57  
58    @ThriftField
59    public void setVertexInputSplitCount(int vertexInputSplitCount) {
60      this.vertexInputSplitCount = vertexInputSplitCount;
61    }
62  
63    @ThriftField(2)
64    public int getEdgeInputSplitsCount() {
65      return edgeInputSplitCount;
66    }
67  
68    @ThriftField
69    public void setEdgeInputSplitsCount(int edgeInputSplitCount) {
70      this.edgeInputSplitCount = edgeInputSplitCount;
71    }
72  
73    /**
74     * Whether or not number of vertex input splits was set yet
75     *
76     * @return True iff it was set
77     */
78    public boolean vertexInputSplitsSet() {
79      return vertexInputSplitCount != -1;
80    }
81  
82    /**
83     * Whether or not number of edge input splits was set yet
84     *
85     * @return True iff it was set
86     */
87    public boolean edgeInputSplitsSet() {
88      return edgeInputSplitCount != -1;
89    }
90  }