Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
MasterInfo |
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| 1.0;1 |
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 org.apache.giraph.graph.TaskInfo; | |
22 | ||
23 | /** | |
24 | * Information about the master that is sent to other workers. | |
25 | */ | |
26 | public class MasterInfo extends TaskInfo { | |
27 | /** Master task id is always -1 */ | |
28 | public static final int MASTER_TASK_ID = -1; | |
29 | /** | |
30 | * Constructor | |
31 | */ | |
32 | 0 | public MasterInfo() { |
33 | 0 | } |
34 | ||
35 | /** | |
36 | * This taskId is used internally as a unique identification of the | |
37 | * nettyServer which runs on this task. Master is always returning -1 | |
38 | * because we need to make sure that the case when option | |
39 | * {@link org.apache.giraph.conf.GiraphConstants#SPLIT_MASTER_WORKER} is | |
40 | * false works correctly (master needs to have different id than the worker | |
41 | * which runs in the same mapper) | |
42 | * | |
43 | * @return -1 | |
44 | */ | |
45 | @Override | |
46 | public int getTaskId() { | |
47 | 0 | return MASTER_TASK_ID; |
48 | } | |
49 | ||
50 | @Override | |
51 | public String toString() { | |
52 | 0 | return "Master(hostname=" + getHostname() + |
53 | 0 | ", MRtaskID=" + super.getTaskId() + |
54 | 0 | ", port=" + getPort() + |
55 | ")"; | |
56 | } | |
57 | } |