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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.replication;</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 java.util.Optional;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">025</span><span id="line-25"></span> |
| <span class="source-line-no">026</span><span id="line-26">@InterfaceAudience.Private</span> |
| <span class="source-line-no">027</span><span id="line-27">public class ReplicationQueueId {</span> |
| <span class="source-line-no">028</span><span id="line-28"></span> |
| <span class="source-line-no">029</span><span id="line-29"> private final ServerName serverName;</span> |
| <span class="source-line-no">030</span><span id="line-30"></span> |
| <span class="source-line-no">031</span><span id="line-31"> private final String peerId;</span> |
| <span class="source-line-no">032</span><span id="line-32"></span> |
| <span class="source-line-no">033</span><span id="line-33"> private final Optional<ServerName> sourceServerName;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35"> // we do not allow '-' in peer names so it is safe to use it as the separator for peer id and</span> |
| <span class="source-line-no">036</span><span id="line-36"> // server name</span> |
| <span class="source-line-no">037</span><span id="line-37"> private static final char PEER_ID_SEPARATOR = '-';</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39"> // The '/' character is not valid for a hostname or a nodename(FQDN, so it is safe to use it as</span> |
| <span class="source-line-no">040</span><span id="line-40"> // the separator for server names)</span> |
| <span class="source-line-no">041</span><span id="line-41"> private static final char SERVER_NAME_SEPARATOR = '/';</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43"> public ReplicationQueueId(ServerName serverName, String peerId) {</span> |
| <span class="source-line-no">044</span><span id="line-44"> this.serverName = Objects.requireNonNull(serverName);</span> |
| <span class="source-line-no">045</span><span id="line-45"> this.peerId = Objects.requireNonNull(peerId);</span> |
| <span class="source-line-no">046</span><span id="line-46"> this.sourceServerName = Optional.empty();</span> |
| <span class="source-line-no">047</span><span id="line-47"> }</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> public ReplicationQueueId(ServerName serverName, String peerId, ServerName sourceServerName) {</span> |
| <span class="source-line-no">050</span><span id="line-50"> this.serverName = Objects.requireNonNull(serverName);</span> |
| <span class="source-line-no">051</span><span id="line-51"> this.peerId = Objects.requireNonNull(peerId);</span> |
| <span class="source-line-no">052</span><span id="line-52"> this.sourceServerName = Optional.of(sourceServerName);</span> |
| <span class="source-line-no">053</span><span id="line-53"> }</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> public ServerName getServerName() {</span> |
| <span class="source-line-no">056</span><span id="line-56"> return serverName;</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"> public String getPeerId() {</span> |
| <span class="source-line-no">060</span><span id="line-60"> return peerId;</span> |
| <span class="source-line-no">061</span><span id="line-61"> }</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> public Optional<ServerName> getSourceServerName() {</span> |
| <span class="source-line-no">064</span><span id="line-64"> return sourceServerName;</span> |
| <span class="source-line-no">065</span><span id="line-65"> }</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> public ServerName getServerWALsBelongTo() {</span> |
| <span class="source-line-no">068</span><span id="line-68"> return sourceServerName.orElse(serverName);</span> |
| <span class="source-line-no">069</span><span id="line-69"> }</span> |
| <span class="source-line-no">070</span><span id="line-70"></span> |
| <span class="source-line-no">071</span><span id="line-71"> public boolean isRecovered() {</span> |
| <span class="source-line-no">072</span><span id="line-72"> return sourceServerName.isPresent();</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> public ReplicationQueueId claim(ServerName targetServerName) {</span> |
| <span class="source-line-no">076</span><span id="line-76"> ServerName newSourceServerName = sourceServerName.orElse(serverName);</span> |
| <span class="source-line-no">077</span><span id="line-77"> return new ReplicationQueueId(targetServerName, peerId, newSourceServerName);</span> |
| <span class="source-line-no">078</span><span id="line-78"> }</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> @Override</span> |
| <span class="source-line-no">081</span><span id="line-81"> public int hashCode() {</span> |
| <span class="source-line-no">082</span><span id="line-82"> return Objects.hash(peerId, serverName, sourceServerName);</span> |
| <span class="source-line-no">083</span><span id="line-83"> }</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> @Override</span> |
| <span class="source-line-no">086</span><span id="line-86"> public boolean equals(Object obj) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> if (this == obj) {</span> |
| <span class="source-line-no">088</span><span id="line-88"> return true;</span> |
| <span class="source-line-no">089</span><span id="line-89"> }</span> |
| <span class="source-line-no">090</span><span id="line-90"> if (!(obj instanceof ReplicationQueueId)) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> return false;</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> ReplicationQueueId other = (ReplicationQueueId) obj;</span> |
| <span class="source-line-no">094</span><span id="line-94"> return Objects.equals(peerId, other.peerId) && Objects.equals(serverName, other.serverName)</span> |
| <span class="source-line-no">095</span><span id="line-95"> && Objects.equals(sourceServerName, other.sourceServerName);</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> @Override</span> |
| <span class="source-line-no">099</span><span id="line-99"> public String toString() {</span> |
| <span class="source-line-no">100</span><span id="line-100"> StringBuilder sb =</span> |
| <span class="source-line-no">101</span><span id="line-101"> new StringBuilder().append(peerId).append(PEER_ID_SEPARATOR).append(serverName);</span> |
| <span class="source-line-no">102</span><span id="line-102"> sourceServerName.ifPresent(s -> sb.append(SERVER_NAME_SEPARATOR).append(s.toString()));</span> |
| <span class="source-line-no">103</span><span id="line-103"> return sb.toString();</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> public static ReplicationQueueId parse(String str) {</span> |
| <span class="source-line-no">107</span><span id="line-107"> int dashIndex = str.indexOf(PEER_ID_SEPARATOR);</span> |
| <span class="source-line-no">108</span><span id="line-108"> String peerId = str.substring(0, dashIndex);</span> |
| <span class="source-line-no">109</span><span id="line-109"> int slashIndex = str.indexOf(SERVER_NAME_SEPARATOR, dashIndex + 1);</span> |
| <span class="source-line-no">110</span><span id="line-110"> if (slashIndex < 0) {</span> |
| <span class="source-line-no">111</span><span id="line-111"> String serverName = str.substring(dashIndex + 1);</span> |
| <span class="source-line-no">112</span><span id="line-112"> return new ReplicationQueueId(ServerName.valueOf(serverName), peerId);</span> |
| <span class="source-line-no">113</span><span id="line-113"> } else {</span> |
| <span class="source-line-no">114</span><span id="line-114"> String serverName = str.substring(dashIndex + 1, slashIndex);</span> |
| <span class="source-line-no">115</span><span id="line-115"> String sourceServerName = str.substring(slashIndex + 1);</span> |
| <span class="source-line-no">116</span><span id="line-116"> return new ReplicationQueueId(ServerName.valueOf(serverName), peerId,</span> |
| <span class="source-line-no">117</span><span id="line-117"> ServerName.valueOf(sourceServerName));</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"> }</span> |
| <span class="source-line-no">120</span><span id="line-120"></span> |
| <span class="source-line-no">121</span><span id="line-121"> public static String getPeerId(String str) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> int dashIndex = str.indexOf(PEER_ID_SEPARATOR);</span> |
| <span class="source-line-no">123</span><span id="line-123"> return str.substring(0, dashIndex);</span> |
| <span class="source-line-no">124</span><span id="line-124"> }</span> |
| <span class="source-line-no">125</span><span id="line-125"></span> |
| <span class="source-line-no">126</span><span id="line-126"> public static byte[] getScanPrefix(ServerName serverName, String peerId) {</span> |
| <span class="source-line-no">127</span><span id="line-127"> return Bytes.toBytes(peerId + PEER_ID_SEPARATOR + serverName.toString());</span> |
| <span class="source-line-no">128</span><span id="line-128"> }</span> |
| <span class="source-line-no">129</span><span id="line-129"></span> |
| <span class="source-line-no">130</span><span id="line-130"> public static byte[] getScanPrefix(String peerId) {</span> |
| <span class="source-line-no">131</span><span id="line-131"> return Bytes.toBytes(peerId + PEER_ID_SEPARATOR);</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"></span> |
| <span class="source-line-no">134</span><span id="line-134"> private static char getNextChar(char c) {</span> |
| <span class="source-line-no">135</span><span id="line-135"> return (char) ((int) c + 1);</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> public static byte[] getScanStartRowForNextPeerId(String peerId) {</span> |
| <span class="source-line-no">139</span><span id="line-139"> return Bytes.toBytes(peerId + getNextChar(PEER_ID_SEPARATOR));</span> |
| <span class="source-line-no">140</span><span id="line-140"> }</span> |
| <span class="source-line-no">141</span><span id="line-141">}</span> |
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| </pre> |
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