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<pre><span class="source-line-no">001</span><span id="line-1">/*</span>
<span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span>
<span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span>
<span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span>
<span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span>
<span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span>
<span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span>
<span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span>
<span class="source-line-no">009</span><span id="line-9"> *</span>
<span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="source-line-no">011</span><span id="line-11"> *</span>
<span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span>
<span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span>
<span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span>
<span class="source-line-no">017</span><span id="line-17"> */</span>
<span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.ipc;</span>
<span class="source-line-no">019</span><span id="line-19"></span>
<span class="source-line-no">020</span><span id="line-20">import java.util.Objects;</span>
<span class="source-line-no">021</span><span id="line-21">import org.apache.hadoop.hbase.net.Address;</span>
<span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.security.User;</span>
<span class="source-line-no">023</span><span id="line-23">import org.apache.yetus.audience.InterfaceAudience;</span>
<span class="source-line-no">024</span><span id="line-24"></span>
<span class="source-line-no">025</span><span id="line-25">/**</span>
<span class="source-line-no">026</span><span id="line-26"> * This class holds the address and the user ticket, etc. The client connections to servers are</span>
<span class="source-line-no">027</span><span id="line-27"> * uniquely identified by &amp;lt;remoteAddress, ticket, serviceName&amp;gt;</span>
<span class="source-line-no">028</span><span id="line-28"> */</span>
<span class="source-line-no">029</span><span id="line-29">@InterfaceAudience.Private</span>
<span class="source-line-no">030</span><span id="line-30">class ConnectionId {</span>
<span class="source-line-no">031</span><span id="line-31"> private static final int PRIME = 16777619;</span>
<span class="source-line-no">032</span><span id="line-32"> final User ticket;</span>
<span class="source-line-no">033</span><span id="line-33"> final String serviceName;</span>
<span class="source-line-no">034</span><span id="line-34"> final Address address;</span>
<span class="source-line-no">035</span><span id="line-35"></span>
<span class="source-line-no">036</span><span id="line-36"> public ConnectionId(User ticket, String serviceName, Address address) {</span>
<span class="source-line-no">037</span><span id="line-37"> this.address = address;</span>
<span class="source-line-no">038</span><span id="line-38"> this.ticket = ticket;</span>
<span class="source-line-no">039</span><span id="line-39"> this.serviceName = serviceName;</span>
<span class="source-line-no">040</span><span id="line-40"> }</span>
<span class="source-line-no">041</span><span id="line-41"></span>
<span class="source-line-no">042</span><span id="line-42"> public String getServiceName() {</span>
<span class="source-line-no">043</span><span id="line-43"> return this.serviceName;</span>
<span class="source-line-no">044</span><span id="line-44"> }</span>
<span class="source-line-no">045</span><span id="line-45"></span>
<span class="source-line-no">046</span><span id="line-46"> public Address getAddress() {</span>
<span class="source-line-no">047</span><span id="line-47"> return address;</span>
<span class="source-line-no">048</span><span id="line-48"> }</span>
<span class="source-line-no">049</span><span id="line-49"></span>
<span class="source-line-no">050</span><span id="line-50"> public User getTicket() {</span>
<span class="source-line-no">051</span><span id="line-51"> return ticket;</span>
<span class="source-line-no">052</span><span id="line-52"> }</span>
<span class="source-line-no">053</span><span id="line-53"></span>
<span class="source-line-no">054</span><span id="line-54"> @Override</span>
<span class="source-line-no">055</span><span id="line-55"> public String toString() {</span>
<span class="source-line-no">056</span><span id="line-56"> return this.address.toString() + "/" + this.serviceName + "/" + this.ticket;</span>
<span class="source-line-no">057</span><span id="line-57"> }</span>
<span class="source-line-no">058</span><span id="line-58"></span>
<span class="source-line-no">059</span><span id="line-59"> @Override</span>
<span class="source-line-no">060</span><span id="line-60"> @SuppressWarnings("ReferenceEquality")</span>
<span class="source-line-no">061</span><span id="line-61"> public boolean equals(Object obj) {</span>
<span class="source-line-no">062</span><span id="line-62"> if (obj == this) {</span>
<span class="source-line-no">063</span><span id="line-63"> return true;</span>
<span class="source-line-no">064</span><span id="line-64"> }</span>
<span class="source-line-no">065</span><span id="line-65"> if (!(obj instanceof ConnectionId)) {</span>
<span class="source-line-no">066</span><span id="line-66"> return false;</span>
<span class="source-line-no">067</span><span id="line-67"> }</span>
<span class="source-line-no">068</span><span id="line-68"> ConnectionId id = (ConnectionId) obj;</span>
<span class="source-line-no">069</span><span id="line-69"> return address.equals(id.address)</span>
<span class="source-line-no">070</span><span id="line-70"> &amp;&amp; ((ticket != null &amp;&amp; ticket.equals(id.ticket)) || (ticket == id.ticket))</span>
<span class="source-line-no">071</span><span id="line-71"> &amp;&amp; Objects.equals(this.serviceName, id.serviceName);</span>
<span class="source-line-no">072</span><span id="line-72"> }</span>
<span class="source-line-no">073</span><span id="line-73"></span>
<span class="source-line-no">074</span><span id="line-74"> @Override // simply use the default Object#hashcode() ?</span>
<span class="source-line-no">075</span><span id="line-75"> public int hashCode() {</span>
<span class="source-line-no">076</span><span id="line-76"> return hashCode(ticket, serviceName, address);</span>
<span class="source-line-no">077</span><span id="line-77"> }</span>
<span class="source-line-no">078</span><span id="line-78"></span>
<span class="source-line-no">079</span><span id="line-79"> public static int hashCode(User ticket, String serviceName, Address address) {</span>
<span class="source-line-no">080</span><span id="line-80"> return (address.hashCode()</span>
<span class="source-line-no">081</span><span id="line-81"> + PRIME * (PRIME * serviceName.hashCode() ^ (ticket == null ? 0 : ticket.hashCode())));</span>
<span class="source-line-no">082</span><span id="line-82"> }</span>
<span class="source-line-no">083</span><span id="line-83">}</span>
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