Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
RequestRegistry |
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| 3.6666666666666665;3.667 | ||||
RequestRegistry$Type |
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| 3.6666666666666665;3.667 |
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.comm; | |
20 | ||
21 | import java.util.EnumMap; | |
22 | import java.util.Map; | |
23 | ||
24 | /** | |
25 | * Registry of the requests that are supported. | |
26 | */ | |
27 | 9 | public class RequestRegistry { |
28 | /** Mapping of enum type to class type */ | |
29 | 9 | @SuppressWarnings("rawtypes") |
30 | private final Map<Type, Class<? extends WritableRequest>> requestMap = | |
31 | new EnumMap<Type, Class<? extends WritableRequest>>(Type.class); | |
32 | /** If finalized, nothing can be added. */ | |
33 | 9 | private boolean shutdown = false; |
34 | ||
35 | /** | |
36 | * Type of the request | |
37 | */ | |
38 | 10 | public enum Type { |
39 | /** Sending vertices request */ | |
40 | 1 | SEND_VERTEX_REQUEST, |
41 | /** Sending a partition of messages for next superstep */ | |
42 | 1 | SEND_PARTITION_MESSAGES_REQUEST, |
43 | /** | |
44 | * Sending a partition of messages for current superstep | |
45 | * (used during partition exchange) | |
46 | */ | |
47 | 1 | SEND_PARTITION_CURRENT_MESSAGES_REQUEST, |
48 | /** Send a partition of mutations */ | |
49 | 1 | SEND_PARTITION_MUTATIONS_REQUEST, |
50 | /** Sending messages request */ | |
51 | 1 | SEND_MESSAGES_REQUEST, |
52 | } | |
53 | ||
54 | /** | |
55 | * Register a writable request by type and class. | |
56 | * | |
57 | * @param writableRequest Request to be registered. | |
58 | */ | |
59 | public void registerClass(WritableRequest<?, ?, ?, ?> writableRequest) { | |
60 | 36 | if (shutdown) { |
61 | 0 | throw new IllegalStateException( |
62 | "registerClass: Cannot call this after shutting down!"); | |
63 | } | |
64 | 36 | if (requestMap.put(writableRequest.getType(), |
65 | writableRequest.getClass()) != null) { | |
66 | 0 | throw new IllegalArgumentException("registerClass: Class " + |
67 | writableRequest.getClass() + " already exists!"); | |
68 | } | |
69 | 36 | } |
70 | ||
71 | /** | |
72 | * Get a class (must be finalized) | |
73 | * | |
74 | * @param type Type of the request to get | |
75 | * @return Class of the type | |
76 | */ | |
77 | @SuppressWarnings("rawtypes") | |
78 | public Class<? extends WritableRequest> getClass(Type type) { | |
79 | 3 | if (!shutdown) { |
80 | 0 | throw new IllegalStateException( |
81 | "getClass: Illegal to get class before finalized"); | |
82 | } | |
83 | ||
84 | 3 | Class<? extends WritableRequest> writableRequestClass = |
85 | requestMap.get(type); | |
86 | 3 | if (writableRequestClass == null) { |
87 | 0 | throw new IllegalArgumentException( |
88 | "getClass: Couldn't find type " + type); | |
89 | } | |
90 | ||
91 | 3 | return writableRequestClass; |
92 | } | |
93 | ||
94 | /** | |
95 | * No more requests can be registered. | |
96 | */ | |
97 | public void shutdown() { | |
98 | 9 | shutdown = true; |
99 | 9 | } |
100 | } |