HADOOP-7208. Fix implementation of equals() and hashCode() in StandardSocketFactory. Contributed by Uma Maheswara Rao G.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1129840 13f79535-47bb-0310-9956-ffa450edef68
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@ -258,6 +258,9 @@ Trunk (unreleased changes)
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HADOOP-7282. ipc.Server.getRemoteIp() may return null. (John George
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via szetszwo)
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HADOOP-7208. Fix implementation of equals() and hashCode() in
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StandardSocketFactory. (Uma Maheswara Rao G via todd)
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Release 0.22.0 - Unreleased
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INCOMPATIBLE CHANGES
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@ -112,16 +112,13 @@ public class StandardSocketFactory extends SocketFactory {
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return true;
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if (obj == null)
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return false;
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if (!(obj instanceof StandardSocketFactory))
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return false;
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return true;
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return obj.getClass().equals(this.getClass());
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}
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/* @inheritDoc */
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@Override
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public int hashCode() {
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// Dummy hash code (to make find bugs happy)
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return 47;
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}
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return this.getClass().hashCode();
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}
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}
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@ -0,0 +1,71 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.ipc;
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import static org.junit.Assert.assertSame;
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import java.util.HashMap;
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import java.util.Map;
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import javax.net.SocketFactory;
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import junit.framework.Assert;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.net.NetUtils;
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import org.apache.hadoop.net.StandardSocketFactory;
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import org.junit.Test;
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public class TestSocketFactory {
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@Test
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public void testSocketFactoryAsKeyInMap() throws Exception {
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Map<SocketFactory, Integer> dummyCache = new HashMap<SocketFactory, Integer>();
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int toBeCached1 = 1;
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int toBeCached2 = 2;
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Configuration conf = new Configuration();
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conf.set("hadoop.rpc.socket.factory.class.default",
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"org.apache.hadoop.ipc.TestSocketFactory$DummySocketFactory");
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final SocketFactory dummySocketFactory = NetUtils
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.getDefaultSocketFactory(conf);
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dummyCache.put(dummySocketFactory, toBeCached1);
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conf.set("hadoop.rpc.socket.factory.class.default",
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"org.apache.hadoop.net.StandardSocketFactory");
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final SocketFactory defaultSocketFactory = NetUtils
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.getDefaultSocketFactory(conf);
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dummyCache.put(defaultSocketFactory, toBeCached2);
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Assert
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.assertEquals("The cache contains two elements", 2, dummyCache.size());
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Assert.assertEquals("Equals of both socket factory shouldn't be same",
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defaultSocketFactory.equals(dummySocketFactory), false);
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assertSame(toBeCached2, dummyCache.remove(defaultSocketFactory));
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dummyCache.put(defaultSocketFactory, toBeCached2);
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assertSame(toBeCached1, dummyCache.remove(dummySocketFactory));
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}
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/**
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* A dummy socket factory class that extends the StandardSocketFactory.
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*/
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static class DummySocketFactory extends StandardSocketFactory {
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}
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}
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