1/*2 * Licensed to the Apache Software Foundation (ASF) under one3 * or more contributor license agreements. See the NOTICE file4 * distributed with this work for additional information5 * regarding copyright ownership. The ASF licenses this file6 * to you under the Apache License, Version 2.0 (the7 * "License"); you may not use this file except in compliance8 * with the License. You may obtain a copy of the License at9 *10 * http://www.apache.org/licenses/LICENSE-2.011 *12 * Unless required by applicable law or agreed to in writing, software13 * 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 and16 * limitations under the License.17 */18package org.apache.giraph.worker;
1920import org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable;
21import org.apache.giraph.master.AggregatorBroadcast;
22import org.apache.hadoop.io.Writable;
23import org.apache.hadoop.io.WritableComparable;
2425/**26 * Class for delegating WorkerAggregatorUsage and27 * WorkerGlobalCommUsage methods to corresponding interface.28 *29 * @param <I> Vertex id30 * @param <V> Vertex data31 * @param <E> Edge data32 */33publicabstractclass WorkerAggregatorDelegator<I extends WritableComparable,
34 V extends Writable, E extends Writable>
35extends DefaultImmutableClassesGiraphConfigurable<I, V, E>
36implements WorkerAggregatorUsage, WorkerGlobalCommUsage {
3738/** Worker aggregator usage */39privateWorkerGlobalCommUsage workerGlobalCommUsage;
4041/**42 * Set worker global communication usage43 *44 * @param workerGlobalCommUsage Worker global communication usage45 */46publicvoid setWorkerGlobalCommUsage(
47WorkerGlobalCommUsage workerGlobalCommUsage) {
48this.workerGlobalCommUsage = workerGlobalCommUsage;
49 }
5051 @Override
52publicfinalvoid reduce(String name, Object value) {
53 workerGlobalCommUsage.reduce(name, value);
54 }
5556 @Override
57publicvoid reduceMerge(String name, Writable value) {
58 workerGlobalCommUsage.reduceMerge(name, value);
59 }
6061 @Override
62publicfinal <B extends Writable> B getBroadcast(String name) {
63return workerGlobalCommUsage.getBroadcast(name);
64 }
6566 @Override
67publicfinal <A extends Writable> void aggregate(String name, A value) {
68 reduce(name, value);
69 }
7071 @Override
72public <A extends Writable> A getAggregatedValue(String name) {
73 AggregatorBroadcast<A> broadcast = workerGlobalCommUsage.getBroadcast(name);
74return broadcast.getValue();
75 }
76 }