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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;</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.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import org.apache.hadoop.hbase.exceptions.DeserializationException;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.util.Bytes;</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">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.shaded.protobuf.generated.ZooKeeperProtos;</span> |
| <span class="source-line-no">028</span><span id="line-28"></span> |
| <span class="source-line-no">029</span><span id="line-29">/**</span> |
| <span class="source-line-no">030</span><span id="line-30"> * State of a WAL log split during distributed splitting. State is kept up in zookeeper.</span> |
| <span class="source-line-no">031</span><span id="line-31"> * Encapsulates protobuf serialization/deserialization so we don't leak generated pb outside of this</span> |
| <span class="source-line-no">032</span><span id="line-32"> * class. Used by regionserver and master packages.</span> |
| <span class="source-line-no">033</span><span id="line-33"> * <p></span> |
| <span class="source-line-no">034</span><span id="line-34"> * Immutable</span> |
| <span class="source-line-no">035</span><span id="line-35"> * @deprecated since 2.4.0 and in 3.0.0, to be removed in 4.0.0, replaced by procedure-based</span> |
| <span class="source-line-no">036</span><span id="line-36"> * distributed WAL splitter, see SplitWALManager</span> |
| <span class="source-line-no">037</span><span id="line-37"> */</span> |
| <span class="source-line-no">038</span><span id="line-38">@Deprecated</span> |
| <span class="source-line-no">039</span><span id="line-39">@InterfaceAudience.Private</span> |
| <span class="source-line-no">040</span><span id="line-40">public class SplitLogTask {</span> |
| <span class="source-line-no">041</span><span id="line-41"> private final ServerName originServer;</span> |
| <span class="source-line-no">042</span><span id="line-42"> private final ZooKeeperProtos.SplitLogTask.State state;</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> public static class Unassigned extends SplitLogTask {</span> |
| <span class="source-line-no">045</span><span id="line-45"> public Unassigned(final ServerName originServer) {</span> |
| <span class="source-line-no">046</span><span id="line-46"> super(originServer, ZooKeeperProtos.SplitLogTask.State.UNASSIGNED);</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"></span> |
| <span class="source-line-no">050</span><span id="line-50"> public static class Owned extends SplitLogTask {</span> |
| <span class="source-line-no">051</span><span id="line-51"> public Owned(final ServerName originServer) {</span> |
| <span class="source-line-no">052</span><span id="line-52"> super(originServer, ZooKeeperProtos.SplitLogTask.State.OWNED);</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"></span> |
| <span class="source-line-no">056</span><span id="line-56"> public static class Resigned extends SplitLogTask {</span> |
| <span class="source-line-no">057</span><span id="line-57"> public Resigned(final ServerName originServer) {</span> |
| <span class="source-line-no">058</span><span id="line-58"> super(originServer, ZooKeeperProtos.SplitLogTask.State.RESIGNED);</span> |
| <span class="source-line-no">059</span><span id="line-59"> }</span> |
| <span class="source-line-no">060</span><span id="line-60"> }</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> public static class Done extends SplitLogTask {</span> |
| <span class="source-line-no">063</span><span id="line-63"> public Done(final ServerName originServer) {</span> |
| <span class="source-line-no">064</span><span id="line-64"> super(originServer, ZooKeeperProtos.SplitLogTask.State.DONE);</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"></span> |
| <span class="source-line-no">068</span><span id="line-68"> public static class Err extends SplitLogTask {</span> |
| <span class="source-line-no">069</span><span id="line-69"> public Err(final ServerName originServer) {</span> |
| <span class="source-line-no">070</span><span id="line-70"> super(originServer, ZooKeeperProtos.SplitLogTask.State.ERR);</span> |
| <span class="source-line-no">071</span><span id="line-71"> }</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"> SplitLogTask(final ZooKeeperProtos.SplitLogTask slt) {</span> |
| <span class="source-line-no">075</span><span id="line-75"> this.originServer = ProtobufUtil.toServerName(slt.getServerName());</span> |
| <span class="source-line-no">076</span><span id="line-76"> this.state = slt.getState();</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"> SplitLogTask(final ServerName originServer, final ZooKeeperProtos.SplitLogTask.State state) {</span> |
| <span class="source-line-no">080</span><span id="line-80"> this.originServer = originServer;</span> |
| <span class="source-line-no">081</span><span id="line-81"> this.state = state;</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> |
| <span class="source-line-no">084</span><span id="line-84"> public ServerName getServerName() {</span> |
| <span class="source-line-no">085</span><span id="line-85"> return this.originServer;</span> |
| <span class="source-line-no">086</span><span id="line-86"> }</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> public boolean isUnassigned(final ServerName sn) {</span> |
| <span class="source-line-no">089</span><span id="line-89"> return this.originServer.equals(sn) && isUnassigned();</span> |
| <span class="source-line-no">090</span><span id="line-90"> }</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> public boolean isUnassigned() {</span> |
| <span class="source-line-no">093</span><span id="line-93"> return this.state == ZooKeeperProtos.SplitLogTask.State.UNASSIGNED;</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> public boolean isOwned(final ServerName sn) {</span> |
| <span class="source-line-no">097</span><span id="line-97"> return this.originServer.equals(sn) && isOwned();</span> |
| <span class="source-line-no">098</span><span id="line-98"> }</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> public boolean isOwned() {</span> |
| <span class="source-line-no">101</span><span id="line-101"> return this.state == ZooKeeperProtos.SplitLogTask.State.OWNED;</span> |
| <span class="source-line-no">102</span><span id="line-102"> }</span> |
| <span class="source-line-no">103</span><span id="line-103"></span> |
| <span class="source-line-no">104</span><span id="line-104"> public boolean isResigned(final ServerName sn) {</span> |
| <span class="source-line-no">105</span><span id="line-105"> return this.originServer.equals(sn) && isResigned();</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> public boolean isResigned() {</span> |
| <span class="source-line-no">109</span><span id="line-109"> return this.state == ZooKeeperProtos.SplitLogTask.State.RESIGNED;</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"></span> |
| <span class="source-line-no">112</span><span id="line-112"> public boolean isDone(final ServerName sn) {</span> |
| <span class="source-line-no">113</span><span id="line-113"> return this.originServer.equals(sn) && isDone();</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> public boolean isDone() {</span> |
| <span class="source-line-no">117</span><span id="line-117"> return this.state == ZooKeeperProtos.SplitLogTask.State.DONE;</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"> public boolean isErr(final ServerName sn) {</span> |
| <span class="source-line-no">121</span><span id="line-121"> return this.originServer.equals(sn) && isErr();</span> |
| <span class="source-line-no">122</span><span id="line-122"> }</span> |
| <span class="source-line-no">123</span><span id="line-123"></span> |
| <span class="source-line-no">124</span><span id="line-124"> public boolean isErr() {</span> |
| <span class="source-line-no">125</span><span id="line-125"> return this.state == ZooKeeperProtos.SplitLogTask.State.ERR;</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"></span> |
| <span class="source-line-no">128</span><span id="line-128"> @Override</span> |
| <span class="source-line-no">129</span><span id="line-129"> public String toString() {</span> |
| <span class="source-line-no">130</span><span id="line-130"> return this.state.toString() + " " + this.originServer.toString();</span> |
| <span class="source-line-no">131</span><span id="line-131"> }</span> |
| <span class="source-line-no">132</span><span id="line-132"></span> |
| <span class="source-line-no">133</span><span id="line-133"> @Override</span> |
| <span class="source-line-no">134</span><span id="line-134"> public boolean equals(Object obj) {</span> |
| <span class="source-line-no">135</span><span id="line-135"> if (!(obj instanceof SplitLogTask)) return false;</span> |
| <span class="source-line-no">136</span><span id="line-136"> SplitLogTask other = (SplitLogTask) obj;</span> |
| <span class="source-line-no">137</span><span id="line-137"> return other.state.equals(this.state) && other.originServer.equals(this.originServer);</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> @Override</span> |
| <span class="source-line-no">141</span><span id="line-141"> public int hashCode() {</span> |
| <span class="source-line-no">142</span><span id="line-142"> int hash = 7;</span> |
| <span class="source-line-no">143</span><span id="line-143"> hash = 31 * hash + this.state.hashCode();</span> |
| <span class="source-line-no">144</span><span id="line-144"> return 31 * hash + this.originServer.hashCode();</span> |
| <span class="source-line-no">145</span><span id="line-145"> }</span> |
| <span class="source-line-no">146</span><span id="line-146"></span> |
| <span class="source-line-no">147</span><span id="line-147"> /**</span> |
| <span class="source-line-no">148</span><span id="line-148"> * @param data Serialized date to parse.</span> |
| <span class="source-line-no">149</span><span id="line-149"> * @return An SplitLogTaskState instance made of the passed <code>data</code></span> |
| <span class="source-line-no">150</span><span id="line-150"> * @see #toByteArray()</span> |
| <span class="source-line-no">151</span><span id="line-151"> */</span> |
| <span class="source-line-no">152</span><span id="line-152"> public static SplitLogTask parseFrom(final byte[] data) throws DeserializationException {</span> |
| <span class="source-line-no">153</span><span id="line-153"> ProtobufUtil.expectPBMagicPrefix(data);</span> |
| <span class="source-line-no">154</span><span id="line-154"> try {</span> |
| <span class="source-line-no">155</span><span id="line-155"> int prefixLen = ProtobufUtil.lengthOfPBMagic();</span> |
| <span class="source-line-no">156</span><span id="line-156"> ZooKeeperProtos.SplitLogTask.Builder builder = ZooKeeperProtos.SplitLogTask.newBuilder();</span> |
| <span class="source-line-no">157</span><span id="line-157"> ProtobufUtil.mergeFrom(builder, data, prefixLen, data.length - prefixLen);</span> |
| <span class="source-line-no">158</span><span id="line-158"> return new SplitLogTask(builder.build());</span> |
| <span class="source-line-no">159</span><span id="line-159"> } catch (IOException e) {</span> |
| <span class="source-line-no">160</span><span id="line-160"> throw new DeserializationException(Bytes.toStringBinary(data, 0, 64), e);</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"> }</span> |
| <span class="source-line-no">163</span><span id="line-163"></span> |
| <span class="source-line-no">164</span><span id="line-164"> /**</span> |
| <span class="source-line-no">165</span><span id="line-165"> * @return This instance serialized into a byte array</span> |
| <span class="source-line-no">166</span><span id="line-166"> * @see #parseFrom(byte[])</span> |
| <span class="source-line-no">167</span><span id="line-167"> */</span> |
| <span class="source-line-no">168</span><span id="line-168"> public byte[] toByteArray() {</span> |
| <span class="source-line-no">169</span><span id="line-169"> // First create a pb ServerName. Then create a ByteString w/ the TaskState</span> |
| <span class="source-line-no">170</span><span id="line-170"> // bytes in it. Finally create a SplitLogTaskState passing in the two</span> |
| <span class="source-line-no">171</span><span id="line-171"> // pbs just created.</span> |
| <span class="source-line-no">172</span><span id="line-172"> HBaseProtos.ServerName snpb = ProtobufUtil.toServerName(this.originServer);</span> |
| <span class="source-line-no">173</span><span id="line-173"> ZooKeeperProtos.SplitLogTask slts =</span> |
| <span class="source-line-no">174</span><span id="line-174"> ZooKeeperProtos.SplitLogTask.newBuilder().setServerName(snpb).setState(this.state).build();</span> |
| <span class="source-line-no">175</span><span id="line-175"> return ProtobufUtil.prependPBMagic(slts.toByteArray());</span> |
| <span class="source-line-no">176</span><span id="line-176"> }</span> |
| <span class="source-line-no">177</span><span id="line-177">}</span> |
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