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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.client;</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 edu.umd.cs.findbugs.annotations.CheckForNull;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.DataInputStream;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.IOException;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.ArrayList;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.Arrays;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Comparator;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.List;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.stream.Collectors;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.exceptions.DeserializationException;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.util.ByteArrayHashKey;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.util.HashKey;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.util.JenkinsHash;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.util.MD5Hash;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.io.DataInputBuffer;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.io.IOUtils;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43">/**</span> |
| <span class="source-line-no">044</span><span id="line-44"> * Information about a region. A region is a range of keys in the whole keyspace of a table, an</span> |
| <span class="source-line-no">045</span><span id="line-45"> * identifier (a timestamp) for differentiating between subset ranges (after region split) and a</span> |
| <span class="source-line-no">046</span><span id="line-46"> * replicaId for differentiating the instance for the same range and some status information about</span> |
| <span class="source-line-no">047</span><span id="line-47"> * the region. The region has a unique name which consists of the following fields:</span> |
| <span class="source-line-no">048</span><span id="line-48"> * <ul></span> |
| <span class="source-line-no">049</span><span id="line-49"> * <li>tableName : The name of the table</li></span> |
| <span class="source-line-no">050</span><span id="line-50"> * <li>startKey : The startKey for the region.</li></span> |
| <span class="source-line-no">051</span><span id="line-51"> * <li>regionId : A timestamp when the region is created.</li></span> |
| <span class="source-line-no">052</span><span id="line-52"> * <li>replicaId : An id starting from 0 to differentiate replicas of the same region range but</span> |
| <span class="source-line-no">053</span><span id="line-53"> * hosted in separated servers. The same region range can be hosted in multiple locations.</li></span> |
| <span class="source-line-no">054</span><span id="line-54"> * <li>encodedName : An MD5 encoded string for the region name.</li></span> |
| <span class="source-line-no">055</span><span id="line-55"> * </ul></span> |
| <span class="source-line-no">056</span><span id="line-56"> * <br></span> |
| <span class="source-line-no">057</span><span id="line-57"> * Other than the fields in the region name, region info contains:</span> |
| <span class="source-line-no">058</span><span id="line-58"> * <ul></span> |
| <span class="source-line-no">059</span><span id="line-59"> * <li>endKey : the endKey for the region (exclusive)</li></span> |
| <span class="source-line-no">060</span><span id="line-60"> * <li>split : Whether the region is split</li></span> |
| <span class="source-line-no">061</span><span id="line-61"> * <li>offline : Whether the region is offline</li></span> |
| <span class="source-line-no">062</span><span id="line-62"> * </ul></span> |
| <span class="source-line-no">063</span><span id="line-63"> */</span> |
| <span class="source-line-no">064</span><span id="line-64">@InterfaceAudience.Public</span> |
| <span class="source-line-no">065</span><span id="line-65">public interface RegionInfo extends Comparable<RegionInfo> {</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"> * Separator used to demarcate the encodedName in a region name in the new format. See description</span> |
| <span class="source-line-no">069</span><span id="line-69"> * on new format above.</span> |
| <span class="source-line-no">070</span><span id="line-70"> */</span> |
| <span class="source-line-no">071</span><span id="line-71"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">072</span><span id="line-72"> int ENC_SEPARATOR = '.';</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">075</span><span id="line-75"> int MD5_HEX_LENGTH = 32;</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">078</span><span id="line-78"> int DEFAULT_REPLICA_ID = 0;</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> /**</span> |
| <span class="source-line-no">081</span><span id="line-81"> * to keep appended int's sorted in string format. Only allows 2 bytes to be sorted for replicaId.</span> |
| <span class="source-line-no">082</span><span id="line-82"> */</span> |
| <span class="source-line-no">083</span><span id="line-83"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">084</span><span id="line-84"> String REPLICA_ID_FORMAT = "%04X";</span> |
| <span class="source-line-no">085</span><span id="line-85"></span> |
| <span class="source-line-no">086</span><span id="line-86"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">087</span><span id="line-87"> byte REPLICA_ID_DELIMITER = (byte) '_';</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">090</span><span id="line-90"> String INVALID_REGION_NAME_FORMAT_MESSAGE = "Invalid regionName format";</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">093</span><span id="line-93"> Comparator<RegionInfo> COMPARATOR = (RegionInfo lhs, RegionInfo rhs) -> {</span> |
| <span class="source-line-no">094</span><span id="line-94"> if (rhs == null) {</span> |
| <span class="source-line-no">095</span><span id="line-95"> return 1;</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"> // Are regions of same table?</span> |
| <span class="source-line-no">099</span><span id="line-99"> int result = lhs.getTable().compareTo(rhs.getTable());</span> |
| <span class="source-line-no">100</span><span id="line-100"> if (result != 0) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> return result;</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"> // Compare start keys.</span> |
| <span class="source-line-no">105</span><span id="line-105"> result = Bytes.compareTo(lhs.getStartKey(), rhs.getStartKey());</span> |
| <span class="source-line-no">106</span><span id="line-106"> if (result != 0) {</span> |
| <span class="source-line-no">107</span><span id="line-107"> return result;</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> // Compare end keys.</span> |
| <span class="source-line-no">111</span><span id="line-111"> result = Bytes.compareTo(lhs.getEndKey(), rhs.getEndKey());</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> if (result != 0) {</span> |
| <span class="source-line-no">114</span><span id="line-114"> if (lhs.getStartKey().length != 0 && lhs.getEndKey().length == 0) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> return 1; // this is last region</span> |
| <span class="source-line-no">116</span><span id="line-116"> }</span> |
| <span class="source-line-no">117</span><span id="line-117"> if (rhs.getStartKey().length != 0 && rhs.getEndKey().length == 0) {</span> |
| <span class="source-line-no">118</span><span id="line-118"> return -1; // o is the last region</span> |
| <span class="source-line-no">119</span><span id="line-119"> }</span> |
| <span class="source-line-no">120</span><span id="line-120"> return result;</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> // regionId is usually milli timestamp -- this defines older stamps</span> |
| <span class="source-line-no">124</span><span id="line-124"> // to be "smaller" than newer stamps in sort order.</span> |
| <span class="source-line-no">125</span><span id="line-125"> if (lhs.getRegionId() > rhs.getRegionId()) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> return 1;</span> |
| <span class="source-line-no">127</span><span id="line-127"> } else if (lhs.getRegionId() < rhs.getRegionId()) {</span> |
| <span class="source-line-no">128</span><span id="line-128"> return -1;</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"></span> |
| <span class="source-line-no">131</span><span id="line-131"> int replicaDiff = lhs.getReplicaId() - rhs.getReplicaId();</span> |
| <span class="source-line-no">132</span><span id="line-132"> if (replicaDiff != 0) {</span> |
| <span class="source-line-no">133</span><span id="line-133"> return replicaDiff;</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> if (lhs.isOffline() == rhs.isOffline()) {</span> |
| <span class="source-line-no">137</span><span id="line-137"> return 0;</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"> if (lhs.isOffline()) {</span> |
| <span class="source-line-no">140</span><span id="line-140"> return -1;</span> |
| <span class="source-line-no">141</span><span id="line-141"> }</span> |
| <span class="source-line-no">142</span><span id="line-142"></span> |
| <span class="source-line-no">143</span><span id="line-143"> return 1;</span> |
| <span class="source-line-no">144</span><span id="line-144"> };</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"> * Returns Return a short, printable name for this region (usually encoded name) for us logging.</span> |
| <span class="source-line-no">148</span><span id="line-148"> */</span> |
| <span class="source-line-no">149</span><span id="line-149"> String getShortNameToLog();</span> |
| <span class="source-line-no">150</span><span id="line-150"></span> |
| <span class="source-line-no">151</span><span id="line-151"> /** Returns the regionId. */</span> |
| <span class="source-line-no">152</span><span id="line-152"> long getRegionId();</span> |
| <span class="source-line-no">153</span><span id="line-153"></span> |
| <span class="source-line-no">154</span><span id="line-154"> /**</span> |
| <span class="source-line-no">155</span><span id="line-155"> * Returns the regionName as an array of bytes.</span> |
| <span class="source-line-no">156</span><span id="line-156"> * @see #getRegionNameAsString()</span> |
| <span class="source-line-no">157</span><span id="line-157"> */</span> |
| <span class="source-line-no">158</span><span id="line-158"> byte[] getRegionName();</span> |
| <span class="source-line-no">159</span><span id="line-159"></span> |
| <span class="source-line-no">160</span><span id="line-160"> /** Returns Region name as a String for use in logging, etc. */</span> |
| <span class="source-line-no">161</span><span id="line-161"> String getRegionNameAsString();</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> /** Returns the encoded region name. */</span> |
| <span class="source-line-no">164</span><span id="line-164"> String getEncodedName();</span> |
| <span class="source-line-no">165</span><span id="line-165"></span> |
| <span class="source-line-no">166</span><span id="line-166"> /** Returns the encoded region name as an array of bytes. */</span> |
| <span class="source-line-no">167</span><span id="line-167"> byte[] getEncodedNameAsBytes();</span> |
| <span class="source-line-no">168</span><span id="line-168"></span> |
| <span class="source-line-no">169</span><span id="line-169"> /** Returns the startKey. */</span> |
| <span class="source-line-no">170</span><span id="line-170"> byte[] getStartKey();</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> /** Returns the endKey. */</span> |
| <span class="source-line-no">173</span><span id="line-173"> byte[] getEndKey();</span> |
| <span class="source-line-no">174</span><span id="line-174"></span> |
| <span class="source-line-no">175</span><span id="line-175"> /** Returns current table name of the region */</span> |
| <span class="source-line-no">176</span><span id="line-176"> TableName getTable();</span> |
| <span class="source-line-no">177</span><span id="line-177"></span> |
| <span class="source-line-no">178</span><span id="line-178"> /** Returns returns region replica id */</span> |
| <span class="source-line-no">179</span><span id="line-179"> int getReplicaId();</span> |
| <span class="source-line-no">180</span><span id="line-180"></span> |
| <span class="source-line-no">181</span><span id="line-181"> /** Returns True if has been split and has daughters. */</span> |
| <span class="source-line-no">182</span><span id="line-182"> boolean isSplit();</span> |
| <span class="source-line-no">183</span><span id="line-183"></span> |
| <span class="source-line-no">184</span><span id="line-184"> /**</span> |
| <span class="source-line-no">185</span><span id="line-185"> * Returns True if this region is offline.</span> |
| <span class="source-line-no">186</span><span id="line-186"> * @deprecated since 3.0.0 and will be removed in 4.0.0</span> |
| <span class="source-line-no">187</span><span id="line-187"> * @see <a href="https://issues.apache.org/jira/browse/HBASE-25210">HBASE-25210</a></span> |
| <span class="source-line-no">188</span><span id="line-188"> */</span> |
| <span class="source-line-no">189</span><span id="line-189"> @Deprecated</span> |
| <span class="source-line-no">190</span><span id="line-190"> boolean isOffline();</span> |
| <span class="source-line-no">191</span><span id="line-191"></span> |
| <span class="source-line-no">192</span><span id="line-192"> /**</span> |
| <span class="source-line-no">193</span><span id="line-193"> * Returns True if this is a split parent region.</span> |
| <span class="source-line-no">194</span><span id="line-194"> * @deprecated since 3.0.0 and will be removed in 4.0.0, Use {@link #isSplit()} instead.</span> |
| <span class="source-line-no">195</span><span id="line-195"> * @see <a href="https://issues.apache.org/jira/browse/HBASE-25210">HBASE-25210</a></span> |
| <span class="source-line-no">196</span><span id="line-196"> */</span> |
| <span class="source-line-no">197</span><span id="line-197"> @Deprecated</span> |
| <span class="source-line-no">198</span><span id="line-198"> boolean isSplitParent();</span> |
| <span class="source-line-no">199</span><span id="line-199"></span> |
| <span class="source-line-no">200</span><span id="line-200"> /** Returns true if this region is a meta region. */</span> |
| <span class="source-line-no">201</span><span id="line-201"> boolean isMetaRegion();</span> |
| <span class="source-line-no">202</span><span id="line-202"></span> |
| <span class="source-line-no">203</span><span id="line-203"> /**</span> |
| <span class="source-line-no">204</span><span id="line-204"> * Returns true if the given inclusive range of rows is fully contained by this region. For</span> |
| <span class="source-line-no">205</span><span id="line-205"> * example, if the region is foo,a,g and this is passed ["b","c"] or ["a","c"] it will return</span> |
| <span class="source-line-no">206</span><span id="line-206"> * true, but if this is passed ["b","z"] it will return false.</span> |
| <span class="source-line-no">207</span><span id="line-207"> * @throws IllegalArgumentException if the range passed is invalid (ie. end &lt; start)</span> |
| <span class="source-line-no">208</span><span id="line-208"> */</span> |
| <span class="source-line-no">209</span><span id="line-209"> boolean containsRange(byte[] rangeStartKey, byte[] rangeEndKey);</span> |
| <span class="source-line-no">210</span><span id="line-210"></span> |
| <span class="source-line-no">211</span><span id="line-211"> /** Returns true if the given row falls in this region. */</span> |
| <span class="source-line-no">212</span><span id="line-212"> boolean containsRow(byte[] row);</span> |
| <span class="source-line-no">213</span><span id="line-213"></span> |
| <span class="source-line-no">214</span><span id="line-214"> /**</span> |
| <span class="source-line-no">215</span><span id="line-215"> * Does region name contain its encoded name?</span> |
| <span class="source-line-no">216</span><span id="line-216"> * @param regionName region name</span> |
| <span class="source-line-no">217</span><span id="line-217"> * @return boolean indicating if this a new format region name which contains its encoded name.</span> |
| <span class="source-line-no">218</span><span id="line-218"> */</span> |
| <span class="source-line-no">219</span><span id="line-219"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">220</span><span id="line-220"> static boolean hasEncodedName(final byte[] regionName) {</span> |
| <span class="source-line-no">221</span><span id="line-221"> // check if region name ends in ENC_SEPARATOR</span> |
| <span class="source-line-no">222</span><span id="line-222"> return (regionName.length >= 1)</span> |
| <span class="source-line-no">223</span><span id="line-223"> && (regionName[regionName.length - 1] == RegionInfo.ENC_SEPARATOR);</span> |
| <span class="source-line-no">224</span><span id="line-224"> }</span> |
| <span class="source-line-no">225</span><span id="line-225"></span> |
| <span class="source-line-no">226</span><span id="line-226"> /** Returns the encodedName */</span> |
| <span class="source-line-no">227</span><span id="line-227"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">228</span><span id="line-228"> static String encodeRegionName(final byte[] regionName) {</span> |
| <span class="source-line-no">229</span><span id="line-229"> String encodedName;</span> |
| <span class="source-line-no">230</span><span id="line-230"> if (hasEncodedName(regionName)) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> // region is in new format:</span> |
| <span class="source-line-no">232</span><span id="line-232"> // <tableName>,<startKey>,<regionIdTimeStamp>/encodedName/</span> |
| <span class="source-line-no">233</span><span id="line-233"> encodedName =</span> |
| <span class="source-line-no">234</span><span id="line-234"> Bytes.toString(regionName, regionName.length - MD5_HEX_LENGTH - 1, MD5_HEX_LENGTH);</span> |
| <span class="source-line-no">235</span><span id="line-235"> } else {</span> |
| <span class="source-line-no">236</span><span id="line-236"> // old format region name. First hbase:meta region also</span> |
| <span class="source-line-no">237</span><span id="line-237"> // use this format.EncodedName is the JenkinsHash value.</span> |
| <span class="source-line-no">238</span><span id="line-238"> HashKey<byte[]> key = new ByteArrayHashKey(regionName, 0, regionName.length);</span> |
| <span class="source-line-no">239</span><span id="line-239"> int hashVal = Math.abs(JenkinsHash.getInstance().hash(key, 0));</span> |
| <span class="source-line-no">240</span><span id="line-240"> encodedName = String.valueOf(hashVal);</span> |
| <span class="source-line-no">241</span><span id="line-241"> }</span> |
| <span class="source-line-no">242</span><span id="line-242"> return encodedName;</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</span> |
| <span class="source-line-no">244</span><span id="line-244"></span> |
| <span class="source-line-no">245</span><span id="line-245"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">246</span><span id="line-246"> static String getRegionNameAsString(byte[] regionName) {</span> |
| <span class="source-line-no">247</span><span id="line-247"> return getRegionNameAsString(null, regionName);</span> |
| <span class="source-line-no">248</span><span id="line-248"> }</span> |
| <span class="source-line-no">249</span><span id="line-249"></span> |
| <span class="source-line-no">250</span><span id="line-250"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">251</span><span id="line-251"> static String getRegionNameAsString(@CheckForNull RegionInfo ri, byte[] regionName) {</span> |
| <span class="source-line-no">252</span><span id="line-252"> if (RegionInfo.hasEncodedName(regionName)) {</span> |
| <span class="source-line-no">253</span><span id="line-253"> // new format region names already have their encoded name.</span> |
| <span class="source-line-no">254</span><span id="line-254"> return Bytes.toStringBinary(regionName);</span> |
| <span class="source-line-no">255</span><span id="line-255"> }</span> |
| <span class="source-line-no">256</span><span id="line-256"></span> |
| <span class="source-line-no">257</span><span id="line-257"> // old format. regionNameStr doesn't have the region name.</span> |
| <span class="source-line-no">258</span><span id="line-258"> if (ri == null) {</span> |
| <span class="source-line-no">259</span><span id="line-259"> return Bytes.toStringBinary(regionName) + "." + RegionInfo.encodeRegionName(regionName);</span> |
| <span class="source-line-no">260</span><span id="line-260"> } else {</span> |
| <span class="source-line-no">261</span><span id="line-261"> return Bytes.toStringBinary(regionName) + "." + ri.getEncodedName();</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"> }</span> |
| <span class="source-line-no">264</span><span id="line-264"></span> |
| <span class="source-line-no">265</span><span id="line-265"> /**</span> |
| <span class="source-line-no">266</span><span id="line-266"> * Returns a String of short, printable names for <code>hris</code> (usually encoded name) for us</span> |
| <span class="source-line-no">267</span><span id="line-267"> * logging.</span> |
| <span class="source-line-no">268</span><span id="line-268"> */</span> |
| <span class="source-line-no">269</span><span id="line-269"> static String getShortNameToLog(RegionInfo... hris) {</span> |
| <span class="source-line-no">270</span><span id="line-270"> return getShortNameToLog(Arrays.asList(hris));</span> |
| <span class="source-line-no">271</span><span id="line-271"> }</span> |
| <span class="source-line-no">272</span><span id="line-272"></span> |
| <span class="source-line-no">273</span><span id="line-273"> /**</span> |
| <span class="source-line-no">274</span><span id="line-274"> * Returns a String of short, printable names for <code>hris</code> (usually encoded name) for us</span> |
| <span class="source-line-no">275</span><span id="line-275"> * logging.</span> |
| <span class="source-line-no">276</span><span id="line-276"> */</span> |
| <span class="source-line-no">277</span><span id="line-277"> static String getShortNameToLog(final List<RegionInfo> ris) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> return ris.stream().map(RegionInfo::getEncodedName).collect(Collectors.toList()).toString();</span> |
| <span class="source-line-no">279</span><span id="line-279"> }</span> |
| <span class="source-line-no">280</span><span id="line-280"></span> |
| <span class="source-line-no">281</span><span id="line-281"> /**</span> |
| <span class="source-line-no">282</span><span id="line-282"> * Gets the table name from the specified region name.</span> |
| <span class="source-line-no">283</span><span id="line-283"> * @param regionName to extract the table name from</span> |
| <span class="source-line-no">284</span><span id="line-284"> * @return Table name</span> |
| <span class="source-line-no">285</span><span id="line-285"> */</span> |
| <span class="source-line-no">286</span><span id="line-286"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">287</span><span id="line-287"> // This method should never be used. Its awful doing parse from bytes.</span> |
| <span class="source-line-no">288</span><span id="line-288"> // It is fallback in case we can't get the tablename any other way. Could try removing it.</span> |
| <span class="source-line-no">289</span><span id="line-289"> // Keeping it Audience Private so can remove at later date.</span> |
| <span class="source-line-no">290</span><span id="line-290"> static TableName getTable(final byte[] regionName) {</span> |
| <span class="source-line-no">291</span><span id="line-291"> int offset = -1;</span> |
| <span class="source-line-no">292</span><span id="line-292"> for (int i = 0; i < regionName.length; i++) {</span> |
| <span class="source-line-no">293</span><span id="line-293"> if (regionName[i] == HConstants.DELIMITER) {</span> |
| <span class="source-line-no">294</span><span id="line-294"> offset = i;</span> |
| <span class="source-line-no">295</span><span id="line-295"> break;</span> |
| <span class="source-line-no">296</span><span id="line-296"> }</span> |
| <span class="source-line-no">297</span><span id="line-297"> }</span> |
| <span class="source-line-no">298</span><span id="line-298"> if (offset <= 0) {</span> |
| <span class="source-line-no">299</span><span id="line-299"> throw new IllegalArgumentException("offset=" + offset);</span> |
| <span class="source-line-no">300</span><span id="line-300"> }</span> |
| <span class="source-line-no">301</span><span id="line-301"> byte[] buff = new byte[offset];</span> |
| <span class="source-line-no">302</span><span id="line-302"> System.arraycopy(regionName, 0, buff, 0, offset);</span> |
| <span class="source-line-no">303</span><span id="line-303"> return TableName.valueOf(buff);</span> |
| <span class="source-line-no">304</span><span id="line-304"> }</span> |
| <span class="source-line-no">305</span><span id="line-305"></span> |
| <span class="source-line-no">306</span><span id="line-306"> /**</span> |
| <span class="source-line-no">307</span><span id="line-307"> * Gets the start key from the specified region name.</span> |
| <span class="source-line-no">308</span><span id="line-308"> * @return Start key.</span> |
| <span class="source-line-no">309</span><span id="line-309"> */</span> |
| <span class="source-line-no">310</span><span id="line-310"> static byte[] getStartKey(final byte[] regionName) throws IOException {</span> |
| <span class="source-line-no">311</span><span id="line-311"> return parseRegionName(regionName)[1];</span> |
| <span class="source-line-no">312</span><span id="line-312"> }</span> |
| <span class="source-line-no">313</span><span id="line-313"></span> |
| <span class="source-line-no">314</span><span id="line-314"> /**</span> |
| <span class="source-line-no">315</span><span id="line-315"> * Figure if the passed bytes represent an encoded region name or not.</span> |
| <span class="source-line-no">316</span><span id="line-316"> * @param regionName A Region name either encoded or not.</span> |
| <span class="source-line-no">317</span><span id="line-317"> * @return True if <code>regionName</code> represents an encoded name.</span> |
| <span class="source-line-no">318</span><span id="line-318"> */</span> |
| <span class="source-line-no">319</span><span id="line-319"> @InterfaceAudience.Private // For use by internals only.</span> |
| <span class="source-line-no">320</span><span id="line-320"> public static boolean isEncodedRegionName(byte[] regionName) {</span> |
| <span class="source-line-no">321</span><span id="line-321"> // If not parseable as region name, presume encoded. TODO: add stringency; e.g. if hex.</span> |
| <span class="source-line-no">322</span><span id="line-322"> if (parseRegionNameOrReturnNull(regionName) == null) {</span> |
| <span class="source-line-no">323</span><span id="line-323"> if (regionName.length > MD5_HEX_LENGTH) {</span> |
| <span class="source-line-no">324</span><span id="line-324"> return false;</span> |
| <span class="source-line-no">325</span><span id="line-325"> } else if (regionName.length == MD5_HEX_LENGTH) {</span> |
| <span class="source-line-no">326</span><span id="line-326"> return true;</span> |
| <span class="source-line-no">327</span><span id="line-327"> } else {</span> |
| <span class="source-line-no">328</span><span id="line-328"> String encodedName = Bytes.toString(regionName);</span> |
| <span class="source-line-no">329</span><span id="line-329"> try {</span> |
| <span class="source-line-no">330</span><span id="line-330"> Integer.parseInt(encodedName);</span> |
| <span class="source-line-no">331</span><span id="line-331"> // If this is a valid integer, it could be hbase:meta's encoded region name.</span> |
| <span class="source-line-no">332</span><span id="line-332"> return true;</span> |
| <span class="source-line-no">333</span><span id="line-333"> } catch (NumberFormatException er) {</span> |
| <span class="source-line-no">334</span><span id="line-334"> return false;</span> |
| <span class="source-line-no">335</span><span id="line-335"> }</span> |
| <span class="source-line-no">336</span><span id="line-336"> }</span> |
| <span class="source-line-no">337</span><span id="line-337"> }</span> |
| <span class="source-line-no">338</span><span id="line-338"> return false;</span> |
| <span class="source-line-no">339</span><span id="line-339"> }</span> |
| <span class="source-line-no">340</span><span id="line-340"></span> |
| <span class="source-line-no">341</span><span id="line-341"> /**</span> |
| <span class="source-line-no">342</span><span id="line-342"> * Returns A deserialized {@link RegionInfo} or null if we failed deserialize or passed bytes null</span> |
| <span class="source-line-no">343</span><span id="line-343"> */</span> |
| <span class="source-line-no">344</span><span id="line-344"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">345</span><span id="line-345"> static RegionInfo parseFromOrNull(final byte[] bytes) {</span> |
| <span class="source-line-no">346</span><span id="line-346"> if (bytes == null) return null;</span> |
| <span class="source-line-no">347</span><span id="line-347"> return parseFromOrNull(bytes, 0, bytes.length);</span> |
| <span class="source-line-no">348</span><span id="line-348"> }</span> |
| <span class="source-line-no">349</span><span id="line-349"></span> |
| <span class="source-line-no">350</span><span id="line-350"> /**</span> |
| <span class="source-line-no">351</span><span id="line-351"> * Returns A deserialized {@link RegionInfo} or null if we failed deserialize or passed bytes null</span> |
| <span class="source-line-no">352</span><span id="line-352"> */</span> |
| <span class="source-line-no">353</span><span id="line-353"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">354</span><span id="line-354"> static RegionInfo parseFromOrNull(final byte[] bytes, int offset, int len) {</span> |
| <span class="source-line-no">355</span><span id="line-355"> if (bytes == null || len <= 0) return null;</span> |
| <span class="source-line-no">356</span><span id="line-356"> try {</span> |
| <span class="source-line-no">357</span><span id="line-357"> return parseFrom(bytes, offset, len);</span> |
| <span class="source-line-no">358</span><span id="line-358"> } catch (DeserializationException e) {</span> |
| <span class="source-line-no">359</span><span id="line-359"> return null;</span> |
| <span class="source-line-no">360</span><span id="line-360"> }</span> |
| <span class="source-line-no">361</span><span id="line-361"> }</span> |
| <span class="source-line-no">362</span><span id="line-362"></span> |
| <span class="source-line-no">363</span><span id="line-363"> /**</span> |
| <span class="source-line-no">364</span><span id="line-364"> * Returns A deserialized {@link RegionInfo}</span> |
| <span class="source-line-no">365</span><span id="line-365"> */</span> |
| <span class="source-line-no">366</span><span id="line-366"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">367</span><span id="line-367"> static RegionInfo parseFrom(final byte[] bytes) throws DeserializationException {</span> |
| <span class="source-line-no">368</span><span id="line-368"> if (bytes == null) return null;</span> |
| <span class="source-line-no">369</span><span id="line-369"> return parseFrom(bytes, 0, bytes.length);</span> |
| <span class="source-line-no">370</span><span id="line-370"> }</span> |
| <span class="source-line-no">371</span><span id="line-371"></span> |
| <span class="source-line-no">372</span><span id="line-372"> /**</span> |
| <span class="source-line-no">373</span><span id="line-373"> * Parse a serialized representation of {@link RegionInfo}</span> |
| <span class="source-line-no">374</span><span id="line-374"> * @param bytes A pb RegionInfo serialized with a pb magic prefix.</span> |
| <span class="source-line-no">375</span><span id="line-375"> * @param offset starting point in the byte array</span> |
| <span class="source-line-no">376</span><span id="line-376"> * @param len length to read on the byte array</span> |
| <span class="source-line-no">377</span><span id="line-377"> * @return A deserialized {@link RegionInfo}</span> |
| <span class="source-line-no">378</span><span id="line-378"> */</span> |
| <span class="source-line-no">379</span><span id="line-379"> @InterfaceAudience.Private</span> |
| <span class="source-line-no">380</span><span id="line-380"> static RegionInfo parseFrom(final byte[] bytes, int offset, int len)</span> |
| <span class="source-line-no">381</span><span id="line-381"> throws DeserializationException {</span> |
| <span class="source-line-no">382</span><span id="line-382"> if (ProtobufUtil.isPBMagicPrefix(bytes, offset, len)) {</span> |
| <span class="source-line-no">383</span><span id="line-383"> int pblen = ProtobufUtil.lengthOfPBMagic();</span> |
| <span class="source-line-no">384</span><span id="line-384"> try {</span> |
| <span class="source-line-no">385</span><span id="line-385"> HBaseProtos.RegionInfo.Builder builder = HBaseProtos.RegionInfo.newBuilder();</span> |
| <span class="source-line-no">386</span><span id="line-386"> ProtobufUtil.mergeFrom(builder, bytes, pblen + offset, len - pblen);</span> |
| <span class="source-line-no">387</span><span id="line-387"> HBaseProtos.RegionInfo ri = builder.build();</span> |
| <span class="source-line-no">388</span><span id="line-388"> return ProtobufUtil.toRegionInfo(ri);</span> |
| <span class="source-line-no">389</span><span id="line-389"> } catch (IOException e) {</span> |
| <span class="source-line-no">390</span><span id="line-390"> throw new DeserializationException(e);</span> |
| <span class="source-line-no">391</span><span id="line-391"> }</span> |
| <span class="source-line-no">392</span><span id="line-392"> } else {</span> |
| <span class="source-line-no">393</span><span id="line-393"> throw new DeserializationException("PB encoded RegionInfo expected");</span> |
| <span class="source-line-no">394</span><span id="line-394"> }</span> |
| <span class="source-line-no">395</span><span id="line-395"> }</span> |
| <span class="source-line-no">396</span><span id="line-396"></span> |
| <span class="source-line-no">397</span><span id="line-397"> /**</span> |
| <span class="source-line-no">398</span><span id="line-398"> * Check whether two regions are adjacent; i.e. lies just before or just after in a table.</span> |
| <span class="source-line-no">399</span><span id="line-399"> * @return true if two regions are adjacent</span> |
| <span class="source-line-no">400</span><span id="line-400"> */</span> |
| <span class="source-line-no">401</span><span id="line-401"> static boolean areAdjacent(RegionInfo regionA, RegionInfo regionB) {</span> |
| <span class="source-line-no">402</span><span id="line-402"> if (regionA == null || regionB == null) {</span> |
| <span class="source-line-no">403</span><span id="line-403"> throw new IllegalArgumentException("Can't check whether adjacent for null region");</span> |
| <span class="source-line-no">404</span><span id="line-404"> }</span> |
| <span class="source-line-no">405</span><span id="line-405"> if (!regionA.getTable().equals(regionB.getTable())) {</span> |
| <span class="source-line-no">406</span><span id="line-406"> return false;</span> |
| <span class="source-line-no">407</span><span id="line-407"> }</span> |
| <span class="source-line-no">408</span><span id="line-408"> RegionInfo a = regionA;</span> |
| <span class="source-line-no">409</span><span id="line-409"> RegionInfo b = regionB;</span> |
| <span class="source-line-no">410</span><span id="line-410"> if (Bytes.compareTo(a.getStartKey(), b.getStartKey()) > 0) {</span> |
| <span class="source-line-no">411</span><span id="line-411"> a = regionB;</span> |
| <span class="source-line-no">412</span><span id="line-412"> b = regionA;</span> |
| <span class="source-line-no">413</span><span id="line-413"> }</span> |
| <span class="source-line-no">414</span><span id="line-414"> return Bytes.equals(a.getEndKey(), b.getStartKey());</span> |
| <span class="source-line-no">415</span><span id="line-415"> }</span> |
| <span class="source-line-no">416</span><span id="line-416"></span> |
| <span class="source-line-no">417</span><span id="line-417"> /**</span> |
| <span class="source-line-no">418</span><span id="line-418"> * Returns This instance serialized as protobuf w/ a magic pb prefix.</span> |
| <span class="source-line-no">419</span><span id="line-419"> * @see #parseFrom(byte[])</span> |
| <span class="source-line-no">420</span><span id="line-420"> */</span> |
| <span class="source-line-no">421</span><span id="line-421"> static byte[] toByteArray(RegionInfo ri) {</span> |
| <span class="source-line-no">422</span><span id="line-422"> byte[] bytes = ProtobufUtil.toRegionInfo(ri).toByteArray();</span> |
| <span class="source-line-no">423</span><span id="line-423"> return ProtobufUtil.prependPBMagic(bytes);</span> |
| <span class="source-line-no">424</span><span id="line-424"> }</span> |
| <span class="source-line-no">425</span><span id="line-425"></span> |
| <span class="source-line-no">426</span><span id="line-426"> /**</span> |
| <span class="source-line-no">427</span><span id="line-427"> * Use logging.</span> |
| <span class="source-line-no">428</span><span id="line-428"> * @param encodedRegionName The encoded regionname.</span> |
| <span class="source-line-no">429</span><span id="line-429"> * @return <code>hbase:meta</code> if passed <code>1028785192</code> else returns</span> |
| <span class="source-line-no">430</span><span id="line-430"> * <code>encodedRegionName</code></span> |
| <span class="source-line-no">431</span><span id="line-431"> */</span> |
| <span class="source-line-no">432</span><span id="line-432"> static String prettyPrint(final String encodedRegionName) {</span> |
| <span class="source-line-no">433</span><span id="line-433"> if (encodedRegionName.equals("1028785192")) {</span> |
| <span class="source-line-no">434</span><span id="line-434"> return encodedRegionName + "/hbase:meta";</span> |
| <span class="source-line-no">435</span><span id="line-435"> }</span> |
| <span class="source-line-no">436</span><span id="line-436"> return encodedRegionName;</span> |
| <span class="source-line-no">437</span><span id="line-437"> }</span> |
| <span class="source-line-no">438</span><span id="line-438"></span> |
| <span class="source-line-no">439</span><span id="line-439"> /**</span> |
| <span class="source-line-no">440</span><span id="line-440"> * Make a region name of passed parameters.</span> |
| <span class="source-line-no">441</span><span id="line-441"> * @param startKey Can be null</span> |
| <span class="source-line-no">442</span><span id="line-442"> * @param regionid Region id (Usually timestamp from when region was created).</span> |
| <span class="source-line-no">443</span><span id="line-443"> * @param newFormat should we create the region name in the new format (such that it contains its</span> |
| <span class="source-line-no">444</span><span id="line-444"> * encoded name?).</span> |
| <span class="source-line-no">445</span><span id="line-445"> * @return Region name made of passed tableName, startKey and id</span> |
| <span class="source-line-no">446</span><span id="line-446"> */</span> |
| <span class="source-line-no">447</span><span id="line-447"> static byte[] createRegionName(final TableName tableName, final byte[] startKey,</span> |
| <span class="source-line-no">448</span><span id="line-448"> final long regionid, boolean newFormat) {</span> |
| <span class="source-line-no">449</span><span id="line-449"> return createRegionName(tableName, startKey, Long.toString(regionid), newFormat);</span> |
| <span class="source-line-no">450</span><span id="line-450"> }</span> |
| <span class="source-line-no">451</span><span id="line-451"></span> |
| <span class="source-line-no">452</span><span id="line-452"> /**</span> |
| <span class="source-line-no">453</span><span id="line-453"> * Make a region name of passed parameters.</span> |
| <span class="source-line-no">454</span><span id="line-454"> * @param startKey Can be null</span> |
| <span class="source-line-no">455</span><span id="line-455"> * @param id Region id (Usually timestamp from when region was created).</span> |
| <span class="source-line-no">456</span><span id="line-456"> * @param newFormat should we create the region name in the new format (such that it contains its</span> |
| <span class="source-line-no">457</span><span id="line-457"> * encoded name?).</span> |
| <span class="source-line-no">458</span><span id="line-458"> * @return Region name made of passed tableName, startKey and id</span> |
| <span class="source-line-no">459</span><span id="line-459"> */</span> |
| <span class="source-line-no">460</span><span id="line-460"> static byte[] createRegionName(final TableName tableName, final byte[] startKey, final String id,</span> |
| <span class="source-line-no">461</span><span id="line-461"> boolean newFormat) {</span> |
| <span class="source-line-no">462</span><span id="line-462"> return createRegionName(tableName, startKey, Bytes.toBytes(id), newFormat);</span> |
| <span class="source-line-no">463</span><span id="line-463"> }</span> |
| <span class="source-line-no">464</span><span id="line-464"></span> |
| <span class="source-line-no">465</span><span id="line-465"> /**</span> |
| <span class="source-line-no">466</span><span id="line-466"> * Make a region name of passed parameters.</span> |
| <span class="source-line-no">467</span><span id="line-467"> * @param startKey Can be null</span> |
| <span class="source-line-no">468</span><span id="line-468"> * @param regionid Region id (Usually timestamp from when region was created).</span> |
| <span class="source-line-no">469</span><span id="line-469"> * @param newFormat should we create the region name in the new format (such that it contains its</span> |
| <span class="source-line-no">470</span><span id="line-470"> * encoded name?).</span> |
| <span class="source-line-no">471</span><span id="line-471"> * @return Region name made of passed tableName, startKey, id and replicaId</span> |
| <span class="source-line-no">472</span><span id="line-472"> */</span> |
| <span class="source-line-no">473</span><span id="line-473"> static byte[] createRegionName(final TableName tableName, final byte[] startKey,</span> |
| <span class="source-line-no">474</span><span id="line-474"> final long regionid, int replicaId, boolean newFormat) {</span> |
| <span class="source-line-no">475</span><span id="line-475"> return createRegionName(tableName, startKey, Bytes.toBytes(Long.toString(regionid)), replicaId,</span> |
| <span class="source-line-no">476</span><span id="line-476"> newFormat);</span> |
| <span class="source-line-no">477</span><span id="line-477"> }</span> |
| <span class="source-line-no">478</span><span id="line-478"></span> |
| <span class="source-line-no">479</span><span id="line-479"> /**</span> |
| <span class="source-line-no">480</span><span id="line-480"> * Make a region name of passed parameters.</span> |
| <span class="source-line-no">481</span><span id="line-481"> * @param startKey Can be null</span> |
| <span class="source-line-no">482</span><span id="line-482"> * @param id Region id (Usually timestamp from when region was created).</span> |
| <span class="source-line-no">483</span><span id="line-483"> * @param newFormat should we create the region name in the new format (such that it contains its</span> |
| <span class="source-line-no">484</span><span id="line-484"> * encoded name?).</span> |
| <span class="source-line-no">485</span><span id="line-485"> * @return Region name made of passed tableName, startKey and id</span> |
| <span class="source-line-no">486</span><span id="line-486"> */</span> |
| <span class="source-line-no">487</span><span id="line-487"> static byte[] createRegionName(final TableName tableName, final byte[] startKey, final byte[] id,</span> |
| <span class="source-line-no">488</span><span id="line-488"> boolean newFormat) {</span> |
| <span class="source-line-no">489</span><span id="line-489"> return createRegionName(tableName, startKey, id, DEFAULT_REPLICA_ID, newFormat);</span> |
| <span class="source-line-no">490</span><span id="line-490"> }</span> |
| <span class="source-line-no">491</span><span id="line-491"></span> |
| <span class="source-line-no">492</span><span id="line-492"> /**</span> |
| <span class="source-line-no">493</span><span id="line-493"> * Make a region name of passed parameters.</span> |
| <span class="source-line-no">494</span><span id="line-494"> * @param startKey Can be null</span> |
| <span class="source-line-no">495</span><span id="line-495"> * @param id Region id (Usually timestamp from when region was created).</span> |
| <span class="source-line-no">496</span><span id="line-496"> * @param newFormat should we create the region name in the new format</span> |
| <span class="source-line-no">497</span><span id="line-497"> * @return Region name made of passed tableName, startKey, id and replicaId</span> |
| <span class="source-line-no">498</span><span id="line-498"> */</span> |
| <span class="source-line-no">499</span><span id="line-499"> static byte[] createRegionName(final TableName tableName, final byte[] startKey, final byte[] id,</span> |
| <span class="source-line-no">500</span><span id="line-500"> final int replicaId, boolean newFormat) {</span> |
| <span class="source-line-no">501</span><span id="line-501"> int len = tableName.getName().length + 2 + id.length + (startKey == null ? 0 : startKey.length);</span> |
| <span class="source-line-no">502</span><span id="line-502"> if (newFormat) {</span> |
| <span class="source-line-no">503</span><span id="line-503"> len += MD5_HEX_LENGTH + 2;</span> |
| <span class="source-line-no">504</span><span id="line-504"> }</span> |
| <span class="source-line-no">505</span><span id="line-505"> byte[] replicaIdBytes = null;</span> |
| <span class="source-line-no">506</span><span id="line-506"> // Special casing: replicaId is only appended if replicaId is greater than</span> |
| <span class="source-line-no">507</span><span id="line-507"> // 0. This is because all regions in meta would have to be migrated to the new</span> |
| <span class="source-line-no">508</span><span id="line-508"> // name otherwise</span> |
| <span class="source-line-no">509</span><span id="line-509"> if (replicaId > 0) {</span> |
| <span class="source-line-no">510</span><span id="line-510"> // use string representation for replica id</span> |
| <span class="source-line-no">511</span><span id="line-511"> replicaIdBytes = Bytes.toBytes(String.format(REPLICA_ID_FORMAT, replicaId));</span> |
| <span class="source-line-no">512</span><span id="line-512"> len += 1 + replicaIdBytes.length;</span> |
| <span class="source-line-no">513</span><span id="line-513"> }</span> |
| <span class="source-line-no">514</span><span id="line-514"></span> |
| <span class="source-line-no">515</span><span id="line-515"> byte[] b = new byte[len];</span> |
| <span class="source-line-no">516</span><span id="line-516"></span> |
| <span class="source-line-no">517</span><span id="line-517"> int offset = tableName.getName().length;</span> |
| <span class="source-line-no">518</span><span id="line-518"> System.arraycopy(tableName.getName(), 0, b, 0, offset);</span> |
| <span class="source-line-no">519</span><span id="line-519"> b[offset++] = HConstants.DELIMITER;</span> |
| <span class="source-line-no">520</span><span id="line-520"> if (startKey != null && startKey.length > 0) {</span> |
| <span class="source-line-no">521</span><span id="line-521"> System.arraycopy(startKey, 0, b, offset, startKey.length);</span> |
| <span class="source-line-no">522</span><span id="line-522"> offset += startKey.length;</span> |
| <span class="source-line-no">523</span><span id="line-523"> }</span> |
| <span class="source-line-no">524</span><span id="line-524"> b[offset++] = HConstants.DELIMITER;</span> |
| <span class="source-line-no">525</span><span id="line-525"> System.arraycopy(id, 0, b, offset, id.length);</span> |
| <span class="source-line-no">526</span><span id="line-526"> offset += id.length;</span> |
| <span class="source-line-no">527</span><span id="line-527"></span> |
| <span class="source-line-no">528</span><span id="line-528"> if (replicaIdBytes != null) {</span> |
| <span class="source-line-no">529</span><span id="line-529"> b[offset++] = REPLICA_ID_DELIMITER;</span> |
| <span class="source-line-no">530</span><span id="line-530"> System.arraycopy(replicaIdBytes, 0, b, offset, replicaIdBytes.length);</span> |
| <span class="source-line-no">531</span><span id="line-531"> offset += replicaIdBytes.length;</span> |
| <span class="source-line-no">532</span><span id="line-532"> }</span> |
| <span class="source-line-no">533</span><span id="line-533"></span> |
| <span class="source-line-no">534</span><span id="line-534"> if (newFormat) {</span> |
| <span class="source-line-no">535</span><span id="line-535"> //</span> |
| <span class="source-line-no">536</span><span id="line-536"> // Encoded name should be built into the region name.</span> |
| <span class="source-line-no">537</span><span id="line-537"> //</span> |
| <span class="source-line-no">538</span><span id="line-538"> // Use the region name thus far (namely, <tablename>,<startKey>,<id>_<replicaId>)</span> |
| <span class="source-line-no">539</span><span id="line-539"> // to compute a MD5 hash to be used as the encoded name, and append</span> |
| <span class="source-line-no">540</span><span id="line-540"> // it to the byte buffer.</span> |
| <span class="source-line-no">541</span><span id="line-541"> //</span> |
| <span class="source-line-no">542</span><span id="line-542"> String md5Hash = MD5Hash.getMD5AsHex(b, 0, offset);</span> |
| <span class="source-line-no">543</span><span id="line-543"> byte[] md5HashBytes = Bytes.toBytes(md5Hash);</span> |
| <span class="source-line-no">544</span><span id="line-544"></span> |
| <span class="source-line-no">545</span><span id="line-545"> if (md5HashBytes.length != MD5_HEX_LENGTH) {</span> |
| <span class="source-line-no">546</span><span id="line-546"> System.out.println(</span> |
| <span class="source-line-no">547</span><span id="line-547"> "MD5-hash length mismatch: Expected=" + MD5_HEX_LENGTH + "; Got=" + md5HashBytes.length);</span> |
| <span class="source-line-no">548</span><span id="line-548"> }</span> |
| <span class="source-line-no">549</span><span id="line-549"></span> |
| <span class="source-line-no">550</span><span id="line-550"> // now append the bytes '.<encodedName>.' to the end</span> |
| <span class="source-line-no">551</span><span id="line-551"> b[offset++] = ENC_SEPARATOR;</span> |
| <span class="source-line-no">552</span><span id="line-552"> System.arraycopy(md5HashBytes, 0, b, offset, MD5_HEX_LENGTH);</span> |
| <span class="source-line-no">553</span><span id="line-553"> offset += MD5_HEX_LENGTH;</span> |
| <span class="source-line-no">554</span><span id="line-554"> b[offset] = ENC_SEPARATOR;</span> |
| <span class="source-line-no">555</span><span id="line-555"> }</span> |
| <span class="source-line-no">556</span><span id="line-556"></span> |
| <span class="source-line-no">557</span><span id="line-557"> return b;</span> |
| <span class="source-line-no">558</span><span id="line-558"> }</span> |
| <span class="source-line-no">559</span><span id="line-559"></span> |
| <span class="source-line-no">560</span><span id="line-560"> /**</span> |
| <span class="source-line-no">561</span><span id="line-561"> * Creates a RegionInfo object for MOB data.</span> |
| <span class="source-line-no">562</span><span id="line-562"> * @param tableName the name of the table</span> |
| <span class="source-line-no">563</span><span id="line-563"> * @return the MOB {@link RegionInfo}.</span> |
| <span class="source-line-no">564</span><span id="line-564"> */</span> |
| <span class="source-line-no">565</span><span id="line-565"> static RegionInfo createMobRegionInfo(TableName tableName) {</span> |
| <span class="source-line-no">566</span><span id="line-566"> // Skipping reference to RegionInfoBuilder in this class.</span> |
| <span class="source-line-no">567</span><span id="line-567"> return new MutableRegionInfo(tableName, Bytes.toBytes(".mob"), HConstants.EMPTY_END_ROW, false,</span> |
| <span class="source-line-no">568</span><span id="line-568"> 0, DEFAULT_REPLICA_ID, false);</span> |
| <span class="source-line-no">569</span><span id="line-569"> }</span> |
| <span class="source-line-no">570</span><span id="line-570"></span> |
| <span class="source-line-no">571</span><span id="line-571"> /**</span> |
| <span class="source-line-no">572</span><span id="line-572"> * Separate elements of a regionName.</span> |
| <span class="source-line-no">573</span><span id="line-573"> * @return Array of byte[] containing tableName, startKey and id OR null if not parseable as a</span> |
| <span class="source-line-no">574</span><span id="line-574"> * region name.</span> |
| <span class="source-line-no">575</span><span id="line-575"> * @throws IOException if not parseable as regionName.</span> |
| <span class="source-line-no">576</span><span id="line-576"> */</span> |
| <span class="source-line-no">577</span><span id="line-577"> static byte[][] parseRegionName(final byte[] regionName) throws IOException {</span> |
| <span class="source-line-no">578</span><span id="line-578"> byte[][] result = parseRegionNameOrReturnNull(regionName);</span> |
| <span class="source-line-no">579</span><span id="line-579"> if (result == null) {</span> |
| <span class="source-line-no">580</span><span id="line-580"> throw new IOException(</span> |
| <span class="source-line-no">581</span><span id="line-581"> INVALID_REGION_NAME_FORMAT_MESSAGE + ": " + Bytes.toStringBinary(regionName));</span> |
| <span class="source-line-no">582</span><span id="line-582"> }</span> |
| <span class="source-line-no">583</span><span id="line-583"> return result;</span> |
| <span class="source-line-no">584</span><span id="line-584"> }</span> |
| <span class="source-line-no">585</span><span id="line-585"></span> |
| <span class="source-line-no">586</span><span id="line-586"> /**</span> |
| <span class="source-line-no">587</span><span id="line-587"> * Separate elements of a regionName. Region name is of the format:</span> |
| <span class="source-line-no">588</span><span id="line-588"> * <code>tablename,startkey,regionIdTimestamp[_replicaId][.encodedName.]</code>. Startkey can</span> |
| <span class="source-line-no">589</span><span id="line-589"> * contain the delimiter (',') so we parse from the start and then parse from the end.</span> |
| <span class="source-line-no">590</span><span id="line-590"> * @return Array of byte[] containing tableName, startKey and id OR null if not parseable as a</span> |
| <span class="source-line-no">591</span><span id="line-591"> * region name.</span> |
| <span class="source-line-no">592</span><span id="line-592"> */</span> |
| <span class="source-line-no">593</span><span id="line-593"> static byte[][] parseRegionNameOrReturnNull(final byte[] regionName) {</span> |
| <span class="source-line-no">594</span><span id="line-594"> int offset = -1;</span> |
| <span class="source-line-no">595</span><span id="line-595"> for (int i = 0; i < regionName.length; i++) {</span> |
| <span class="source-line-no">596</span><span id="line-596"> if (regionName[i] == HConstants.DELIMITER) {</span> |
| <span class="source-line-no">597</span><span id="line-597"> offset = i;</span> |
| <span class="source-line-no">598</span><span id="line-598"> break;</span> |
| <span class="source-line-no">599</span><span id="line-599"> }</span> |
| <span class="source-line-no">600</span><span id="line-600"> }</span> |
| <span class="source-line-no">601</span><span id="line-601"> if (offset == -1) {</span> |
| <span class="source-line-no">602</span><span id="line-602"> return null;</span> |
| <span class="source-line-no">603</span><span id="line-603"> }</span> |
| <span class="source-line-no">604</span><span id="line-604"> byte[] tableName = new byte[offset];</span> |
| <span class="source-line-no">605</span><span id="line-605"> System.arraycopy(regionName, 0, tableName, 0, offset);</span> |
| <span class="source-line-no">606</span><span id="line-606"> offset = -1;</span> |
| <span class="source-line-no">607</span><span id="line-607"></span> |
| <span class="source-line-no">608</span><span id="line-608"> int endOffset = regionName.length;</span> |
| <span class="source-line-no">609</span><span id="line-609"> // check whether regionName contains encodedName</span> |
| <span class="source-line-no">610</span><span id="line-610"> if (</span> |
| <span class="source-line-no">611</span><span id="line-611"> regionName.length > MD5_HEX_LENGTH + 2 && regionName[regionName.length - 1] == ENC_SEPARATOR</span> |
| <span class="source-line-no">612</span><span id="line-612"> && regionName[regionName.length - MD5_HEX_LENGTH - 2] == ENC_SEPARATOR</span> |
| <span class="source-line-no">613</span><span id="line-613"> ) {</span> |
| <span class="source-line-no">614</span><span id="line-614"> endOffset = endOffset - MD5_HEX_LENGTH - 2;</span> |
| <span class="source-line-no">615</span><span id="line-615"> }</span> |
| <span class="source-line-no">616</span><span id="line-616"></span> |
| <span class="source-line-no">617</span><span id="line-617"> // parse from end</span> |
| <span class="source-line-no">618</span><span id="line-618"> byte[] replicaId = null;</span> |
| <span class="source-line-no">619</span><span id="line-619"> int idEndOffset = endOffset;</span> |
| <span class="source-line-no">620</span><span id="line-620"> for (int i = endOffset - 1; i > 0; i--) {</span> |
| <span class="source-line-no">621</span><span id="line-621"> if (regionName[i] == REPLICA_ID_DELIMITER) { // replicaId may or may not be present</span> |
| <span class="source-line-no">622</span><span id="line-622"> replicaId = new byte[endOffset - i - 1];</span> |
| <span class="source-line-no">623</span><span id="line-623"> System.arraycopy(regionName, i + 1, replicaId, 0, endOffset - i - 1);</span> |
| <span class="source-line-no">624</span><span id="line-624"> idEndOffset = i;</span> |
| <span class="source-line-no">625</span><span id="line-625"> // do not break, continue to search for id</span> |
| <span class="source-line-no">626</span><span id="line-626"> }</span> |
| <span class="source-line-no">627</span><span id="line-627"> if (regionName[i] == HConstants.DELIMITER) {</span> |
| <span class="source-line-no">628</span><span id="line-628"> offset = i;</span> |
| <span class="source-line-no">629</span><span id="line-629"> break;</span> |
| <span class="source-line-no">630</span><span id="line-630"> }</span> |
| <span class="source-line-no">631</span><span id="line-631"> }</span> |
| <span class="source-line-no">632</span><span id="line-632"> if (offset == -1) {</span> |
| <span class="source-line-no">633</span><span id="line-633"> return null;</span> |
| <span class="source-line-no">634</span><span id="line-634"> }</span> |
| <span class="source-line-no">635</span><span id="line-635"> byte[] startKey = HConstants.EMPTY_BYTE_ARRAY;</span> |
| <span class="source-line-no">636</span><span id="line-636"> if (offset != tableName.length + 1) {</span> |
| <span class="source-line-no">637</span><span id="line-637"> startKey = new byte[offset - tableName.length - 1];</span> |
| <span class="source-line-no">638</span><span id="line-638"> System.arraycopy(regionName, tableName.length + 1, startKey, 0,</span> |
| <span class="source-line-no">639</span><span id="line-639"> offset - tableName.length - 1);</span> |
| <span class="source-line-no">640</span><span id="line-640"> }</span> |
| <span class="source-line-no">641</span><span id="line-641"> byte[] id = new byte[idEndOffset - offset - 1];</span> |
| <span class="source-line-no">642</span><span id="line-642"> System.arraycopy(regionName, offset + 1, id, 0, idEndOffset - offset - 1);</span> |
| <span class="source-line-no">643</span><span id="line-643"> byte[][] elements = new byte[replicaId == null ? 3 : 4][];</span> |
| <span class="source-line-no">644</span><span id="line-644"> elements[0] = tableName;</span> |
| <span class="source-line-no">645</span><span id="line-645"> elements[1] = startKey;</span> |
| <span class="source-line-no">646</span><span id="line-646"> elements[2] = id;</span> |
| <span class="source-line-no">647</span><span id="line-647"> if (replicaId != null) {</span> |
| <span class="source-line-no">648</span><span id="line-648"> elements[3] = replicaId;</span> |
| <span class="source-line-no">649</span><span id="line-649"> }</span> |
| <span class="source-line-no">650</span><span id="line-650"> return elements;</span> |
| <span class="source-line-no">651</span><span id="line-651"> }</span> |
| <span class="source-line-no">652</span><span id="line-652"></span> |
| <span class="source-line-no">653</span><span id="line-653"> /**</span> |
| <span class="source-line-no">654</span><span id="line-654"> * Serializes given RegionInfo's as a byte array. Use this instead of</span> |
| <span class="source-line-no">655</span><span id="line-655"> * {@link RegionInfo#toByteArray(RegionInfo)} when writing to a stream and you want to use the pb</span> |
| <span class="source-line-no">656</span><span id="line-656"> * mergeDelimitedFrom (w/o the delimiter, pb reads to EOF which may not be what you want).</span> |
| <span class="source-line-no">657</span><span id="line-657"> * {@link #parseDelimitedFrom(byte[], int, int)} can be used to read back the instances.</span> |
| <span class="source-line-no">658</span><span id="line-658"> * @param infos RegionInfo objects to serialize</span> |
| <span class="source-line-no">659</span><span id="line-659"> * @return This instance serialized as a delimited protobuf w/ a magic pb prefix.</span> |
| <span class="source-line-no">660</span><span id="line-660"> */</span> |
| <span class="source-line-no">661</span><span id="line-661"> static byte[] toDelimitedByteArray(RegionInfo... infos) throws IOException {</span> |
| <span class="source-line-no">662</span><span id="line-662"> byte[][] bytes = new byte[infos.length][];</span> |
| <span class="source-line-no">663</span><span id="line-663"> int size = 0;</span> |
| <span class="source-line-no">664</span><span id="line-664"> for (int i = 0; i < infos.length; i++) {</span> |
| <span class="source-line-no">665</span><span id="line-665"> bytes[i] = toDelimitedByteArray(infos[i]);</span> |
| <span class="source-line-no">666</span><span id="line-666"> size += bytes[i].length;</span> |
| <span class="source-line-no">667</span><span id="line-667"> }</span> |
| <span class="source-line-no">668</span><span id="line-668"></span> |
| <span class="source-line-no">669</span><span id="line-669"> byte[] result = new byte[size];</span> |
| <span class="source-line-no">670</span><span id="line-670"> int offset = 0;</span> |
| <span class="source-line-no">671</span><span id="line-671"> for (byte[] b : bytes) {</span> |
| <span class="source-line-no">672</span><span id="line-672"> System.arraycopy(b, 0, result, offset, b.length);</span> |
| <span class="source-line-no">673</span><span id="line-673"> offset += b.length;</span> |
| <span class="source-line-no">674</span><span id="line-674"> }</span> |
| <span class="source-line-no">675</span><span id="line-675"> return result;</span> |
| <span class="source-line-no">676</span><span id="line-676"> }</span> |
| <span class="source-line-no">677</span><span id="line-677"></span> |
| <span class="source-line-no">678</span><span id="line-678"> /**</span> |
| <span class="source-line-no">679</span><span id="line-679"> * Use this instead of {@link RegionInfo#toByteArray(RegionInfo)} when writing to a stream and you</span> |
| <span class="source-line-no">680</span><span id="line-680"> * want to use the pb mergeDelimitedFrom (w/o the delimiter, pb reads to EOF which may not be what</span> |
| <span class="source-line-no">681</span><span id="line-681"> * you want).</span> |
| <span class="source-line-no">682</span><span id="line-682"> * @return This instance serialized as a delimied protobuf w/ a magic pb prefix.</span> |
| <span class="source-line-no">683</span><span id="line-683"> */</span> |
| <span class="source-line-no">684</span><span id="line-684"> static byte[] toDelimitedByteArray(RegionInfo ri) throws IOException {</span> |
| <span class="source-line-no">685</span><span id="line-685"> return ProtobufUtil.toDelimitedByteArray(ProtobufUtil.toRegionInfo(ri));</span> |
| <span class="source-line-no">686</span><span id="line-686"> }</span> |
| <span class="source-line-no">687</span><span id="line-687"></span> |
| <span class="source-line-no">688</span><span id="line-688"> /**</span> |
| <span class="source-line-no">689</span><span id="line-689"> * Parses an RegionInfo instance from the passed in stream. Presumes the RegionInfo was serialized</span> |
| <span class="source-line-no">690</span><span id="line-690"> * to the stream with {@link #toDelimitedByteArray(RegionInfo)}.</span> |
| <span class="source-line-no">691</span><span id="line-691"> * @return An instance of RegionInfo.</span> |
| <span class="source-line-no">692</span><span id="line-692"> */</span> |
| <span class="source-line-no">693</span><span id="line-693"> static RegionInfo parseFrom(final DataInputStream in) throws IOException {</span> |
| <span class="source-line-no">694</span><span id="line-694"> // I need to be able to move back in the stream if this is not a pb</span> |
| <span class="source-line-no">695</span><span id="line-695"> // serialization so I can do the Writable decoding instead.</span> |
| <span class="source-line-no">696</span><span id="line-696"> int pblen = ProtobufUtil.lengthOfPBMagic();</span> |
| <span class="source-line-no">697</span><span id="line-697"> byte[] pbuf = new byte[pblen];</span> |
| <span class="source-line-no">698</span><span id="line-698"> if (in.markSupported()) { // read it with mark()</span> |
| <span class="source-line-no">699</span><span id="line-699"> in.mark(pblen);</span> |
| <span class="source-line-no">700</span><span id="line-700"> }</span> |
| <span class="source-line-no">701</span><span id="line-701"></span> |
| <span class="source-line-no">702</span><span id="line-702"> // assumption: if Writable serialization, it should be longer than pblen.</span> |
| <span class="source-line-no">703</span><span id="line-703"> IOUtils.readFully(in, pbuf, 0, pblen);</span> |
| <span class="source-line-no">704</span><span id="line-704"> if (ProtobufUtil.isPBMagicPrefix(pbuf)) {</span> |
| <span class="source-line-no">705</span><span id="line-705"> return ProtobufUtil.toRegionInfo(HBaseProtos.RegionInfo.parseDelimitedFrom(in));</span> |
| <span class="source-line-no">706</span><span id="line-706"> } else {</span> |
| <span class="source-line-no">707</span><span id="line-707"> throw new IOException("PB encoded RegionInfo expected");</span> |
| <span class="source-line-no">708</span><span id="line-708"> }</span> |
| <span class="source-line-no">709</span><span id="line-709"> }</span> |
| <span class="source-line-no">710</span><span id="line-710"></span> |
| <span class="source-line-no">711</span><span id="line-711"> /**</span> |
| <span class="source-line-no">712</span><span id="line-712"> * Parses all the RegionInfo instances from the passed in stream until EOF. Presumes the</span> |
| <span class="source-line-no">713</span><span id="line-713"> * RegionInfo's were serialized to the stream with oDelimitedByteArray()</span> |
| <span class="source-line-no">714</span><span id="line-714"> * @param bytes serialized bytes</span> |
| <span class="source-line-no">715</span><span id="line-715"> * @param offset the start offset into the byte[] buffer</span> |
| <span class="source-line-no">716</span><span id="line-716"> * @param length how far we should read into the byte[] buffer</span> |
| <span class="source-line-no">717</span><span id="line-717"> * @return All the RegionInfos that are in the byte array. Keeps reading till we hit the end.</span> |
| <span class="source-line-no">718</span><span id="line-718"> */</span> |
| <span class="source-line-no">719</span><span id="line-719"> static List<RegionInfo> parseDelimitedFrom(final byte[] bytes, final int offset, final int length)</span> |
| <span class="source-line-no">720</span><span id="line-720"> throws IOException {</span> |
| <span class="source-line-no">721</span><span id="line-721"> if (bytes == null) {</span> |
| <span class="source-line-no">722</span><span id="line-722"> throw new IllegalArgumentException("Can't build an object with empty bytes array");</span> |
| <span class="source-line-no">723</span><span id="line-723"> }</span> |
| <span class="source-line-no">724</span><span id="line-724"> List<RegionInfo> ris = new ArrayList<>();</span> |
| <span class="source-line-no">725</span><span id="line-725"> try (DataInputBuffer in = new DataInputBuffer()) {</span> |
| <span class="source-line-no">726</span><span id="line-726"> in.reset(bytes, offset, length);</span> |
| <span class="source-line-no">727</span><span id="line-727"> while (in.available() > 0) {</span> |
| <span class="source-line-no">728</span><span id="line-728"> RegionInfo ri = parseFrom(in);</span> |
| <span class="source-line-no">729</span><span id="line-729"> ris.add(ri);</span> |
| <span class="source-line-no">730</span><span id="line-730"> }</span> |
| <span class="source-line-no">731</span><span id="line-731"> }</span> |
| <span class="source-line-no">732</span><span id="line-732"> return ris;</span> |
| <span class="source-line-no">733</span><span id="line-733"> }</span> |
| <span class="source-line-no">734</span><span id="line-734"></span> |
| <span class="source-line-no">735</span><span id="line-735"> /** Returns True if this is first Region in Table */</span> |
| <span class="source-line-no">736</span><span id="line-736"> default boolean isFirst() {</span> |
| <span class="source-line-no">737</span><span id="line-737"> return Bytes.equals(getStartKey(), HConstants.EMPTY_START_ROW);</span> |
| <span class="source-line-no">738</span><span id="line-738"> }</span> |
| <span class="source-line-no">739</span><span id="line-739"></span> |
| <span class="source-line-no">740</span><span id="line-740"> /** Returns True if this is last Region in Table */</span> |
| <span class="source-line-no">741</span><span id="line-741"> default boolean isLast() {</span> |
| <span class="source-line-no">742</span><span id="line-742"> return Bytes.equals(getEndKey(), HConstants.EMPTY_END_ROW);</span> |
| <span class="source-line-no">743</span><span id="line-743"> }</span> |
| <span class="source-line-no">744</span><span id="line-744"></span> |
| <span class="source-line-no">745</span><span id="line-745"> /**</span> |
| <span class="source-line-no">746</span><span id="line-746"> * Returns True if region is next, adjacent but 'after' this one.</span> |
| <span class="source-line-no">747</span><span id="line-747"> * @see #isAdjacent(RegionInfo)</span> |
| <span class="source-line-no">748</span><span id="line-748"> * @see #areAdjacent(RegionInfo, RegionInfo)</span> |
| <span class="source-line-no">749</span><span id="line-749"> */</span> |
| <span class="source-line-no">750</span><span id="line-750"> default boolean isNext(RegionInfo after) {</span> |
| <span class="source-line-no">751</span><span id="line-751"> return getTable().equals(after.getTable()) && Bytes.equals(getEndKey(), after.getStartKey());</span> |
| <span class="source-line-no">752</span><span id="line-752"> }</span> |
| <span class="source-line-no">753</span><span id="line-753"></span> |
| <span class="source-line-no">754</span><span id="line-754"> /**</span> |
| <span class="source-line-no">755</span><span id="line-755"> * Returns True if region is adjacent, either just before or just after this one.</span> |
| <span class="source-line-no">756</span><span id="line-756"> * @see #isNext(RegionInfo)</span> |
| <span class="source-line-no">757</span><span id="line-757"> */</span> |
| <span class="source-line-no">758</span><span id="line-758"> default boolean isAdjacent(RegionInfo other) {</span> |
| <span class="source-line-no">759</span><span id="line-759"> return getTable().equals(other.getTable()) && areAdjacent(this, other);</span> |
| <span class="source-line-no">760</span><span id="line-760"> }</span> |
| <span class="source-line-no">761</span><span id="line-761"></span> |
| <span class="source-line-no">762</span><span id="line-762"> /** Returns True if RegionInfo is degenerate... if startKey > endKey. */</span> |
| <span class="source-line-no">763</span><span id="line-763"> default boolean isDegenerate() {</span> |
| <span class="source-line-no">764</span><span id="line-764"> return !isLast() && Bytes.compareTo(getStartKey(), getEndKey()) > 0;</span> |
| <span class="source-line-no">765</span><span id="line-765"> }</span> |
| <span class="source-line-no">766</span><span id="line-766"></span> |
| <span class="source-line-no">767</span><span id="line-767"> /**</span> |
| <span class="source-line-no">768</span><span id="line-768"> * Returns True if an overlap in region range.</span> |
| <span class="source-line-no">769</span><span id="line-769"> * @see #isDegenerate()</span> |
| <span class="source-line-no">770</span><span id="line-770"> */</span> |
| <span class="source-line-no">771</span><span id="line-771"> default boolean isOverlap(RegionInfo other) {</span> |
| <span class="source-line-no">772</span><span id="line-772"> if (other == null) {</span> |
| <span class="source-line-no">773</span><span id="line-773"> return false;</span> |
| <span class="source-line-no">774</span><span id="line-774"> }</span> |
| <span class="source-line-no">775</span><span id="line-775"> if (!getTable().equals(other.getTable())) {</span> |
| <span class="source-line-no">776</span><span id="line-776"> return false;</span> |
| <span class="source-line-no">777</span><span id="line-777"> }</span> |
| <span class="source-line-no">778</span><span id="line-778"> int startKeyCompare = Bytes.compareTo(getStartKey(), other.getStartKey());</span> |
| <span class="source-line-no">779</span><span id="line-779"> if (startKeyCompare == 0) {</span> |
| <span class="source-line-no">780</span><span id="line-780"> return true;</span> |
| <span class="source-line-no">781</span><span id="line-781"> }</span> |
| <span class="source-line-no">782</span><span id="line-782"> if (startKeyCompare < 0) {</span> |
| <span class="source-line-no">783</span><span id="line-783"> if (isLast()) {</span> |
| <span class="source-line-no">784</span><span id="line-784"> return true;</span> |
| <span class="source-line-no">785</span><span id="line-785"> }</span> |
| <span class="source-line-no">786</span><span id="line-786"> return Bytes.compareTo(getEndKey(), other.getStartKey()) > 0;</span> |
| <span class="source-line-no">787</span><span id="line-787"> }</span> |
| <span class="source-line-no">788</span><span id="line-788"> if (other.isLast()) {</span> |
| <span class="source-line-no">789</span><span id="line-789"> return true;</span> |
| <span class="source-line-no">790</span><span id="line-790"> }</span> |
| <span class="source-line-no">791</span><span id="line-791"> return Bytes.compareTo(getStartKey(), other.getEndKey()) < 0;</span> |
| <span class="source-line-no">792</span><span id="line-792"> }</span> |
| <span class="source-line-no">793</span><span id="line-793"></span> |
| <span class="source-line-no">794</span><span id="line-794"> @Override</span> |
| <span class="source-line-no">795</span><span id="line-795"> default int compareTo(RegionInfo other) {</span> |
| <span class="source-line-no">796</span><span id="line-796"> return RegionInfo.COMPARATOR.compare(this, other);</span> |
| <span class="source-line-no">797</span><span id="line-797"> }</span> |
| <span class="source-line-no">798</span><span id="line-798">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
