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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.client;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import edu.umd.cs.findbugs.annotations.CheckForNull;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.DataInputStream;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Arrays;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Comparator;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.List;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.stream.Collectors;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HConstants;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.ByteArrayHashKey;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.HashKey;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.JenkinsHash;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.MD5Hash;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.io.DataInputBuffer;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>/**<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * Information about a region. A region is a range of keys in the whole keyspace<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * of a table, an identifier (a timestamp) for differentiating between subset<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * ranges (after region split) and a replicaId for differentiating the instance<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * for the same range and some status information about the region.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> *<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * The region has a unique name which consists of the following fields:<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * <ul><a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * <li> tableName : The name of the table </li><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * <li> startKey : The startKey for the region. </li><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * <li> regionId : A timestamp when the region is created. </li><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * <li> replicaId : An id starting from 0 to differentiate replicas of the<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * same region range but hosted in separated servers. The same region range can<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * be hosted in multiple locations.</li><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * <li> encodedName : An MD5 encoded string for the region name.</li><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * </ul><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> *<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * <br> Other than the fields in the region name, region info contains:<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * <ul><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * <li> endKey : the endKey for the region (exclusive) </li><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * <li> split : Whether the region is split </li><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * <li> offline : Whether the region is offline </li><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * </ul><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> *<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>@InterfaceAudience.Public<a name="line.67"></a> |
| <span class="sourceLineNo">068</span>public interface RegionInfo extends Comparable<RegionInfo> {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @deprecated since 2.3.2/3.0.0; to be removed in 4.0.0 with no replacement (for internal use).<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> @Deprecated<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> @InterfaceAudience.Private<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // Not using RegionInfoBuilder intentionally to avoid a static loading deadlock: HBASE-24896<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> RegionInfo UNDEFINED = new MutableRegionInfo(0, TableName.valueOf("__UNDEFINED__"),<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> RegionInfo.DEFAULT_REPLICA_ID);<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> /**<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * Separator used to demarcate the encodedName in a region name<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * in the new format. See description on new format above.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> */<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> @InterfaceAudience.Private<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> int ENC_SEPARATOR = '.';<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> @InterfaceAudience.Private<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> int MD5_HEX_LENGTH = 32;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> @InterfaceAudience.Private<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> int DEFAULT_REPLICA_ID = 0;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> /**<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * to keep appended int's sorted in string format. Only allows 2 bytes<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * to be sorted for replicaId.<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> */<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> @InterfaceAudience.Private<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> String REPLICA_ID_FORMAT = "%04X";<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> @InterfaceAudience.Private<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> byte REPLICA_ID_DELIMITER = (byte)'_';<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> @InterfaceAudience.Private<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> String INVALID_REGION_NAME_FORMAT_MESSAGE = "Invalid regionName format";<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> @InterfaceAudience.Private<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> Comparator<RegionInfo> COMPARATOR<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> = (RegionInfo lhs, RegionInfo rhs) -> {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> if (rhs == null) {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> return 1;<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> // Are regions of same table?<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> int result = lhs.getTable().compareTo(rhs.getTable());<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (result != 0) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> return result;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> // Compare start keys.<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> result = Bytes.compareTo(lhs.getStartKey(), rhs.getStartKey());<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (result != 0) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> return result;<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // Compare end keys.<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> result = Bytes.compareTo(lhs.getEndKey(), rhs.getEndKey());<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> if (result != 0) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> if (lhs.getStartKey().length != 0<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> && lhs.getEndKey().length == 0) {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> return 1; // this is last region<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> if (rhs.getStartKey().length != 0<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> && rhs.getEndKey().length == 0) {<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> return -1; // o is the last region<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> return result;<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> // regionId is usually milli timestamp -- this defines older stamps<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // to be "smaller" than newer stamps in sort order.<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> if (lhs.getRegionId() > rhs.getRegionId()) {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> return 1;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> } else if (lhs.getRegionId() < rhs.getRegionId()) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> return -1;<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> int replicaDiff = lhs.getReplicaId() - rhs.getReplicaId();<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> if (replicaDiff != 0) {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> return replicaDiff;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> if (lhs.isOffline() == rhs.isOffline()) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> return 0;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> if (lhs.isOffline()) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> return -1;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> return 1;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> };<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> /**<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * @return Return a short, printable name for this region<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> * (usually encoded name) for us logging.<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> */<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> String getShortNameToLog();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> /**<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> * @return the regionId.<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> */<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> long getRegionId();<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> /**<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> * @return the regionName as an array of bytes.<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> * @see #getRegionNameAsString()<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> */<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> byte [] getRegionName();<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> /**<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> * @return Region name as a String for use in logging, etc.<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> */<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> String getRegionNameAsString();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> /**<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> * @return the encoded region name.<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> */<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> String getEncodedName();<a name="line.187"></a> |
| <span class="sourceLineNo">188</span><a name="line.188"></a> |
| <span class="sourceLineNo">189</span> /**<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * @return the encoded region name as an array of bytes.<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> */<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> byte [] getEncodedNameAsBytes();<a name="line.192"></a> |
| <span class="sourceLineNo">193</span><a name="line.193"></a> |
| <span class="sourceLineNo">194</span> /**<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> * @return the startKey.<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> */<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> byte [] getStartKey();<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> /**<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * @return the endKey.<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> */<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> byte [] getEndKey();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> /**<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * @return current table name of the region<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> */<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> TableName getTable();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> /**<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> * @return returns region replica id<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> */<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> int getReplicaId();<a name="line.212"></a> |
| <span class="sourceLineNo">213</span><a name="line.213"></a> |
| <span class="sourceLineNo">214</span> /**<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> * @return True if has been split and has daughters.<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> */<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> boolean isSplit();<a name="line.217"></a> |
| <span class="sourceLineNo">218</span><a name="line.218"></a> |
| <span class="sourceLineNo">219</span> /**<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> * @return True if this region is offline.<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> */<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> boolean isOffline();<a name="line.222"></a> |
| <span class="sourceLineNo">223</span><a name="line.223"></a> |
| <span class="sourceLineNo">224</span> /**<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> * @return True if this is a split parent region.<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> */<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> boolean isSplitParent();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span><a name="line.228"></a> |
| <span class="sourceLineNo">229</span> /**<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> * @return true if this region is a meta region.<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> */<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> boolean isMetaRegion();<a name="line.232"></a> |
| <span class="sourceLineNo">233</span><a name="line.233"></a> |
| <span class="sourceLineNo">234</span> /**<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * @return true if the given inclusive range of rows is fully contained<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> * by this region. For example, if the region is foo,a,g and this is<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> * passed ["b","c"] or ["a","c"] it will return true, but if this is passed<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> * ["b","z"] it will return false.<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> * @throws IllegalArgumentException if the range passed is invalid (ie. end &lt; start)<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> */<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> boolean containsRange(byte[] rangeStartKey, byte[] rangeEndKey);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> /**<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> * @return true if the given row falls in this region.<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> */<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> boolean containsRow(byte[] row);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span><a name="line.247"></a> |
| <span class="sourceLineNo">248</span> /**<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * Does region name contain its encoded name?<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * @param regionName region name<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * @return boolean indicating if this a new format region<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> * name which contains its encoded name.<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> */<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> @InterfaceAudience.Private<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> static boolean hasEncodedName(final byte[] regionName) {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> // check if region name ends in ENC_SEPARATOR<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> return (regionName.length >= 1) &&<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> (regionName[regionName.length - 1] == RegionInfo.ENC_SEPARATOR);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> }<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> /**<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> * @return the encodedName<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> */<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> @InterfaceAudience.Private<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> static String encodeRegionName(final byte [] regionName) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> String encodedName;<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> if (hasEncodedName(regionName)) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // region is in new format:<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> // <tableName>,<startKey>,<regionIdTimeStamp>/encodedName/<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> encodedName = Bytes.toString(regionName,<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> regionName.length - MD5_HEX_LENGTH - 1,<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> MD5_HEX_LENGTH);<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> } else {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> // old format region name. First hbase:meta region also<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> // use this format.EncodedName is the JenkinsHash value.<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> HashKey<byte[]> key = new ByteArrayHashKey(regionName, 0, regionName.length);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> int hashVal = Math.abs(JenkinsHash.getInstance().hash(key, 0));<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> encodedName = String.valueOf(hashVal);<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return encodedName;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> @InterfaceAudience.Private<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> static String getRegionNameAsString(byte[] regionName) {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> return getRegionNameAsString(null, regionName);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> @InterfaceAudience.Private<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> static String getRegionNameAsString(@CheckForNull RegionInfo ri, byte[] regionName) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> if (RegionInfo.hasEncodedName(regionName)) {<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> // new format region names already have their encoded name.<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> return Bytes.toStringBinary(regionName);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> // old format. regionNameStr doesn't have the region name.<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> if (ri == null) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> return Bytes.toStringBinary(regionName) + "." + RegionInfo.encodeRegionName(regionName);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> } else {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> return Bytes.toStringBinary(regionName) + "." + ri.getEncodedName();<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> /**<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> * @return Return a String of short, printable names for <code>hris</code><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * (usually encoded name) for us logging.<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> */<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> static String getShortNameToLog(RegionInfo...hris) {<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> return getShortNameToLog(Arrays.asList(hris));<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> }<a name="line.309"></a> |
| <span class="sourceLineNo">310</span><a name="line.310"></a> |
| <span class="sourceLineNo">311</span> /**<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * @return Return a String of short, printable names for <code>hris</code> (usually encoded name)<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * for us logging.<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> */<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> static String getShortNameToLog(final List<RegionInfo> ris) {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> return ris.stream().map(RegionInfo::getEncodedName).collect(Collectors.toList()).toString();<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> }<a name="line.317"></a> |
| <span class="sourceLineNo">318</span><a name="line.318"></a> |
| <span class="sourceLineNo">319</span> /**<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> * Gets the table name from the specified region name.<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> * @param regionName to extract the table name from<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> * @return Table name<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> */<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> @InterfaceAudience.Private<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> // This method should never be used. Its awful doing parse from bytes.<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> // It is fallback in case we can't get the tablename any other way. Could try removing it.<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> // Keeping it Audience Private so can remove at later date.<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> static TableName getTable(final byte [] regionName) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> int offset = -1;<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> for (int i = 0; i < regionName.length; i++) {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> if (regionName[i] == HConstants.DELIMITER) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> offset = i;<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> break;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> if (offset <= 0) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> throw new IllegalArgumentException("offset=" + offset);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> }<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> byte[] buff = new byte[offset];<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> System.arraycopy(regionName, 0, buff, 0, offset);<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> return TableName.valueOf(buff);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span><a name="line.343"></a> |
| <span class="sourceLineNo">344</span> /**<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> * Gets the start key from the specified region name.<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> * @return Start key.<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> */<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> static byte[] getStartKey(final byte[] regionName) throws IOException {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> return parseRegionName(regionName)[1];<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> }<a name="line.350"></a> |
| <span class="sourceLineNo">351</span><a name="line.351"></a> |
| <span class="sourceLineNo">352</span> /**<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * Figure if the passed bytes represent an encoded region name or not.<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> * @param regionName A Region name either encoded or not.<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> * @return True if <code>regionName</code> represents an encoded name.<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> */<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> @InterfaceAudience.Private // For use by internals only.<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> public static boolean isEncodedRegionName(byte[] regionName) {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> // If not parseable as region name, presume encoded. TODO: add stringency; e.g. if hex.<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> return parseRegionNameOrReturnNull(regionName) == null && regionName.length <= MD5_HEX_LENGTH;<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> }<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> /**<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * @return A deserialized {@link RegionInfo}<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> * or null if we failed deserialize or passed bytes null<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> */<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> @InterfaceAudience.Private<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> static RegionInfo parseFromOrNull(final byte [] bytes) {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if (bytes == null) return null;<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> return parseFromOrNull(bytes, 0, bytes.length);<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span><a name="line.372"></a> |
| <span class="sourceLineNo">373</span> /**<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> * @return A deserialized {@link RegionInfo} or null<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> * if we failed deserialize or passed bytes null<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> */<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> @InterfaceAudience.Private<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> static RegionInfo parseFromOrNull(final byte [] bytes, int offset, int len) {<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> if (bytes == null || len <= 0) return null;<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> try {<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> return parseFrom(bytes, offset, len);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> } catch (DeserializationException e) {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> return null;<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> }<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> }<a name="line.385"></a> |
| <span class="sourceLineNo">386</span><a name="line.386"></a> |
| <span class="sourceLineNo">387</span> /**<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> * @param bytes A pb RegionInfo serialized with a pb magic prefix.<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> * @return A deserialized {@link RegionInfo}<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> */<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> @InterfaceAudience.Private<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> static RegionInfo parseFrom(final byte [] bytes) throws DeserializationException {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> if (bytes == null) return null;<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> return parseFrom(bytes, 0, bytes.length);<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> }<a name="line.395"></a> |
| <span class="sourceLineNo">396</span><a name="line.396"></a> |
| <span class="sourceLineNo">397</span> /**<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> * @param bytes A pb RegionInfo serialized with a pb magic prefix.<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> * @param offset starting point in the byte array<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> * @param len length to read on the byte array<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> * @return A deserialized {@link RegionInfo}<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> */<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> @InterfaceAudience.Private<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> static RegionInfo parseFrom(final byte [] bytes, int offset, int len)<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> throws DeserializationException {<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> if (ProtobufUtil.isPBMagicPrefix(bytes, offset, len)) {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> int pblen = ProtobufUtil.lengthOfPBMagic();<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> try {<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> HBaseProtos.RegionInfo.Builder builder = HBaseProtos.RegionInfo.newBuilder();<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> ProtobufUtil.mergeFrom(builder, bytes, pblen + offset, len - pblen);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> HBaseProtos.RegionInfo ri = builder.build();<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> return ProtobufUtil.toRegionInfo(ri);<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> } catch (IOException e) {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> throw new DeserializationException(e);<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> }<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> } else {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> throw new DeserializationException("PB encoded RegionInfo expected");<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> }<a name="line.419"></a> |
| <span class="sourceLineNo">420</span><a name="line.420"></a> |
| <span class="sourceLineNo">421</span> /**<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> * Check whether two regions are adjacent; i.e. lies just before or just<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> * after in a table.<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> * @return true if two regions are adjacent<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> */<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> static boolean areAdjacent(RegionInfo regionA, RegionInfo regionB) {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> if (regionA == null || regionB == null) {<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> throw new IllegalArgumentException(<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> "Can't check whether adjacent for null region");<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> }<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> if (!regionA.getTable().equals(regionB.getTable())) {<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> return false;<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> RegionInfo a = regionA;<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> RegionInfo b = regionB;<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> if (Bytes.compareTo(a.getStartKey(), b.getStartKey()) > 0) {<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> a = regionB;<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> b = regionA;<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> }<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> return Bytes.equals(a.getEndKey(), b.getStartKey());<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> }<a name="line.441"></a> |
| <span class="sourceLineNo">442</span><a name="line.442"></a> |
| <span class="sourceLineNo">443</span> /**<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> * @return This instance serialized as protobuf w/ a magic pb prefix.<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> * @see #parseFrom(byte[])<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> */<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> static byte [] toByteArray(RegionInfo ri) {<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> byte [] bytes = ProtobufUtil.toRegionInfo(ri).toByteArray();<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> return ProtobufUtil.prependPBMagic(bytes);<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span><a name="line.451"></a> |
| <span class="sourceLineNo">452</span> /**<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> * Use logging.<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> * @param encodedRegionName The encoded regionname.<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> * @return <code>hbase:meta</code> if passed <code>1028785192</code> else returns<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> * <code>encodedRegionName</code><a name="line.456"></a> |
| <span class="sourceLineNo">457</span> */<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> static String prettyPrint(final String encodedRegionName) {<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> if (encodedRegionName.equals("1028785192")) {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> return encodedRegionName + "/hbase:meta";<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> }<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> return encodedRegionName;<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> }<a name="line.463"></a> |
| <span class="sourceLineNo">464</span><a name="line.464"></a> |
| <span class="sourceLineNo">465</span> /**<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> * Make a region name of passed parameters.<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> * @param startKey Can be null<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> * @param regionid Region id (Usually timestamp from when region was created).<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> * @param newFormat should we create the region name in the new format<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> * (such that it contains its encoded name?).<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> * @return Region name made of passed tableName, startKey and id<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> */<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> static byte [] createRegionName(final TableName tableName, final byte[] startKey,<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> final long regionid, boolean newFormat) {<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> return createRegionName(tableName, startKey, Long.toString(regionid), newFormat);<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> }<a name="line.476"></a> |
| <span class="sourceLineNo">477</span><a name="line.477"></a> |
| <span class="sourceLineNo">478</span> /**<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> * Make a region name of passed parameters.<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> * @param startKey Can be null<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> * @param id Region id (Usually timestamp from when region was created).<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> * @param newFormat should we create the region name in the new format<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> * (such that it contains its encoded name?).<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> * @return Region name made of passed tableName, startKey and id<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> */<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> static byte [] createRegionName(final TableName tableName,<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> final byte[] startKey, final String id, boolean newFormat) {<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> return createRegionName(tableName, startKey, Bytes.toBytes(id), newFormat);<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> }<a name="line.489"></a> |
| <span class="sourceLineNo">490</span><a name="line.490"></a> |
| <span class="sourceLineNo">491</span> /**<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> * Make a region name of passed parameters.<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> * @param startKey Can be null<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> * @param regionid Region id (Usually timestamp from when region was created).<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> * @param newFormat should we create the region name in the new format<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> * (such that it contains its encoded name?).<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> * @return Region name made of passed tableName, startKey, id and replicaId<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> */<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> static byte [] createRegionName(final TableName tableName,<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> final byte[] startKey, final long regionid, int replicaId, boolean newFormat) {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> return createRegionName(tableName, startKey, Bytes.toBytes(Long.toString(regionid)),<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> replicaId, newFormat);<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> }<a name="line.503"></a> |
| <span class="sourceLineNo">504</span><a name="line.504"></a> |
| <span class="sourceLineNo">505</span> /**<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> * Make a region name of passed parameters.<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> * @param startKey Can be null<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> * @param id Region id (Usually timestamp from when region was created).<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> * @param newFormat should we create the region name in the new format<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> * (such that it contains its encoded name?).<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> * @return Region name made of passed tableName, startKey and id<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> */<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> static byte [] createRegionName(final TableName tableName,<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> final byte[] startKey, final byte[] id, boolean newFormat) {<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> return createRegionName(tableName, startKey, id, DEFAULT_REPLICA_ID, newFormat);<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> }<a name="line.516"></a> |
| <span class="sourceLineNo">517</span><a name="line.517"></a> |
| <span class="sourceLineNo">518</span> /**<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> * Make a region name of passed parameters.<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> * @param startKey Can be null<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> * @param id Region id (Usually timestamp from when region was created).<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> * @param newFormat should we create the region name in the new format<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> * @return Region name made of passed tableName, startKey, id and replicaId<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> */<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> static byte [] createRegionName(final TableName tableName,<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> final byte[] startKey, final byte[] id, final int replicaId, boolean newFormat) {<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> int len = tableName.getName().length + 2 + id.length + (startKey == null? 0: startKey.length);<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> if (newFormat) {<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> len += MD5_HEX_LENGTH + 2;<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> }<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> byte[] replicaIdBytes = null;<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> // Special casing: replicaId is only appended if replicaId is greater than<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> // 0. This is because all regions in meta would have to be migrated to the new<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> // name otherwise<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> if (replicaId > 0) {<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> // use string representation for replica id<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> replicaIdBytes = Bytes.toBytes(String.format(REPLICA_ID_FORMAT, replicaId));<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> len += 1 + replicaIdBytes.length;<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> }<a name="line.539"></a> |
| <span class="sourceLineNo">540</span><a name="line.540"></a> |
| <span class="sourceLineNo">541</span> byte [] b = new byte [len];<a name="line.541"></a> |
| <span class="sourceLineNo">542</span><a name="line.542"></a> |
| <span class="sourceLineNo">543</span> int offset = tableName.getName().length;<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> System.arraycopy(tableName.getName(), 0, b, 0, offset);<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> b[offset++] = HConstants.DELIMITER;<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> if (startKey != null && startKey.length > 0) {<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> System.arraycopy(startKey, 0, b, offset, startKey.length);<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> offset += startKey.length;<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> }<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> b[offset++] = HConstants.DELIMITER;<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> System.arraycopy(id, 0, b, offset, id.length);<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> offset += id.length;<a name="line.552"></a> |
| <span class="sourceLineNo">553</span><a name="line.553"></a> |
| <span class="sourceLineNo">554</span> if (replicaIdBytes != null) {<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> b[offset++] = REPLICA_ID_DELIMITER;<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> System.arraycopy(replicaIdBytes, 0, b, offset, replicaIdBytes.length);<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> offset += replicaIdBytes.length;<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> }<a name="line.558"></a> |
| <span class="sourceLineNo">559</span><a name="line.559"></a> |
| <span class="sourceLineNo">560</span> if (newFormat) {<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> //<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> // Encoded name should be built into the region name.<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> //<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> // Use the region name thus far (namely, <tablename>,<startKey>,<id>_<replicaId>)<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> // to compute a MD5 hash to be used as the encoded name, and append<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> // it to the byte buffer.<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> //<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> String md5Hash = MD5Hash.getMD5AsHex(b, 0, offset);<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> byte [] md5HashBytes = Bytes.toBytes(md5Hash);<a name="line.569"></a> |
| <span class="sourceLineNo">570</span><a name="line.570"></a> |
| <span class="sourceLineNo">571</span> if (md5HashBytes.length != MD5_HEX_LENGTH) {<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> System.out.println("MD5-hash length mismatch: Expected=" + MD5_HEX_LENGTH +<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> "; Got=" + md5HashBytes.length);<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> }<a name="line.574"></a> |
| <span class="sourceLineNo">575</span><a name="line.575"></a> |
| <span class="sourceLineNo">576</span> // now append the bytes '.<encodedName>.' to the end<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> b[offset++] = ENC_SEPARATOR;<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> System.arraycopy(md5HashBytes, 0, b, offset, MD5_HEX_LENGTH);<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> offset += MD5_HEX_LENGTH;<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> b[offset] = ENC_SEPARATOR;<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> }<a name="line.581"></a> |
| <span class="sourceLineNo">582</span><a name="line.582"></a> |
| <span class="sourceLineNo">583</span> return b;<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> }<a name="line.584"></a> |
| <span class="sourceLineNo">585</span><a name="line.585"></a> |
| <span class="sourceLineNo">586</span> /**<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> * Creates a RegionInfo object for MOB data.<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> *<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> * @param tableName the name of the table<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> * @return the MOB {@link RegionInfo}.<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> */<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> static RegionInfo createMobRegionInfo(TableName tableName) {<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> // Skipping reference to RegionInfoBuilder in this class.<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> return new MutableRegionInfo(tableName, Bytes.toBytes(".mob"),<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> HConstants.EMPTY_END_ROW, false, 0, DEFAULT_REPLICA_ID, false);<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> }<a name="line.596"></a> |
| <span class="sourceLineNo">597</span><a name="line.597"></a> |
| <span class="sourceLineNo">598</span> /**<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> * Separate elements of a regionName.<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> * @return Array of byte[] containing tableName, startKey and id OR null if<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> * not parseable as a region name.<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> * @throws IOException if not parseable as regionName.<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> */<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> static byte [][] parseRegionName(final byte[] regionName) throws IOException {<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> byte [][] result = parseRegionNameOrReturnNull(regionName);<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> if (result == null) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> throw new IOException(INVALID_REGION_NAME_FORMAT_MESSAGE + ": " + Bytes.toStringBinary(regionName));<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> }<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> return result;<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> }<a name="line.610"></a> |
| <span class="sourceLineNo">611</span><a name="line.611"></a> |
| <span class="sourceLineNo">612</span> /**<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> * Separate elements of a regionName.<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> * Region name is of the format:<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> * <code>tablename,startkey,regionIdTimestamp[_replicaId][.encodedName.]</code>.<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> * Startkey can contain the delimiter (',') so we parse from the start and then parse from<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> * the end.<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> * @return Array of byte[] containing tableName, startKey and id OR null if not parseable<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> * as a region name.<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> */<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> static byte [][] parseRegionNameOrReturnNull(final byte[] regionName) {<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> int offset = -1;<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> for (int i = 0; i < regionName.length; i++) {<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> if (regionName[i] == HConstants.DELIMITER) {<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> offset = i;<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> break;<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> }<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> }<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> if (offset == -1) {<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> return null;<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> }<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> byte[] tableName = new byte[offset];<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> System.arraycopy(regionName, 0, tableName, 0, offset);<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> offset = -1;<a name="line.634"></a> |
| <span class="sourceLineNo">635</span><a name="line.635"></a> |
| <span class="sourceLineNo">636</span> int endOffset = regionName.length;<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> // check whether regionName contains encodedName<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> if (regionName.length > MD5_HEX_LENGTH + 2 &&<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> regionName[regionName.length-1] == ENC_SEPARATOR &&<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> regionName[regionName.length-MD5_HEX_LENGTH-2] == ENC_SEPARATOR) {<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> endOffset = endOffset - MD5_HEX_LENGTH - 2;<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> }<a name="line.642"></a> |
| <span class="sourceLineNo">643</span><a name="line.643"></a> |
| <span class="sourceLineNo">644</span> // parse from end<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> byte[] replicaId = null;<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> int idEndOffset = endOffset;<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> for (int i = endOffset - 1; i > 0; i--) {<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> if (regionName[i] == REPLICA_ID_DELIMITER) { //replicaId may or may not be present<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> replicaId = new byte[endOffset - i - 1];<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> System.arraycopy(regionName, i + 1, replicaId, 0,<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> endOffset - i - 1);<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> idEndOffset = i;<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> // do not break, continue to search for id<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> }<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> if (regionName[i] == HConstants.DELIMITER) {<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> offset = i;<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> break;<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> }<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> }<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> if (offset == -1) {<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> return null;<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> }<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> byte [] startKey = HConstants.EMPTY_BYTE_ARRAY;<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> if(offset != tableName.length + 1) {<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> startKey = new byte[offset - tableName.length - 1];<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> System.arraycopy(regionName, tableName.length + 1, startKey, 0,<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> offset - tableName.length - 1);<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> }<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> byte [] id = new byte[idEndOffset - offset - 1];<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> System.arraycopy(regionName, offset + 1, id, 0,<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> idEndOffset - offset - 1);<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> byte [][] elements = new byte[replicaId == null ? 3 : 4][];<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> elements[0] = tableName;<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> elements[1] = startKey;<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> elements[2] = id;<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> if (replicaId != null) {<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> elements[3] = replicaId;<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> }<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> return elements;<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> }<a name="line.680"></a> |
| <span class="sourceLineNo">681</span><a name="line.681"></a> |
| <span class="sourceLineNo">682</span> /**<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> * Serializes given RegionInfo's as a byte array. Use this instead of<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> * {@link RegionInfo#toByteArray(RegionInfo)} when<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> * writing to a stream and you want to use the pb mergeDelimitedFrom (w/o the delimiter, pb reads<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> * to EOF which may not be what you want). {@link #parseDelimitedFrom(byte[], int, int)} can<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> * be used to read back the instances.<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> * @param infos RegionInfo objects to serialize<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> * @return This instance serialized as a delimited protobuf w/ a magic pb prefix.<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> */<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> static byte[] toDelimitedByteArray(RegionInfo... infos) throws IOException {<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> byte[][] bytes = new byte[infos.length][];<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> int size = 0;<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> for (int i = 0; i < infos.length; i++) {<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> bytes[i] = toDelimitedByteArray(infos[i]);<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> size += bytes[i].length;<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> }<a name="line.697"></a> |
| <span class="sourceLineNo">698</span><a name="line.698"></a> |
| <span class="sourceLineNo">699</span> byte[] result = new byte[size];<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> int offset = 0;<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> for (byte[] b : bytes) {<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> System.arraycopy(b, 0, result, offset, b.length);<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> offset += b.length;<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> }<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> return result;<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span><a name="line.707"></a> |
| <span class="sourceLineNo">708</span> /**<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> * Use this instead of {@link RegionInfo#toByteArray(RegionInfo)} when writing to a stream and you want to use<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> * the pb mergeDelimitedFrom (w/o the delimiter, pb reads to EOF which may not be what you want).<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> * @return This instance serialized as a delimied protobuf w/ a magic pb prefix.<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> */<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> static byte [] toDelimitedByteArray(RegionInfo ri) throws IOException {<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> return ProtobufUtil.toDelimitedByteArray(ProtobufUtil.toRegionInfo(ri));<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> }<a name="line.715"></a> |
| <span class="sourceLineNo">716</span><a name="line.716"></a> |
| <span class="sourceLineNo">717</span> /**<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> * Parses an RegionInfo instance from the passed in stream.<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> * Presumes the RegionInfo was serialized to the stream with<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> * {@link #toDelimitedByteArray(RegionInfo)}.<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> * @return An instance of RegionInfo.<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> */<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> static RegionInfo parseFrom(final DataInputStream in) throws IOException {<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> // I need to be able to move back in the stream if this is not a pb<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> // serialization so I can do the Writable decoding instead.<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> int pblen = ProtobufUtil.lengthOfPBMagic();<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> byte [] pbuf = new byte[pblen];<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> if (in.markSupported()) { //read it with mark()<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> in.mark(pblen);<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> }<a name="line.730"></a> |
| <span class="sourceLineNo">731</span><a name="line.731"></a> |
| <span class="sourceLineNo">732</span> //assumption: if Writable serialization, it should be longer than pblen.<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> int read = in.read(pbuf);<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> if (read != pblen) throw new IOException("read=" + read + ", wanted=" + pblen);<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> if (ProtobufUtil.isPBMagicPrefix(pbuf)) {<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> return ProtobufUtil.toRegionInfo(HBaseProtos.RegionInfo.parseDelimitedFrom(in));<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> } else {<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> throw new IOException("PB encoded RegionInfo expected");<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> }<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> }<a name="line.740"></a> |
| <span class="sourceLineNo">741</span><a name="line.741"></a> |
| <span class="sourceLineNo">742</span> /**<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> * Parses all the RegionInfo instances from the passed in stream until EOF. Presumes the<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> * RegionInfo's were serialized to the stream with oDelimitedByteArray()<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> * @param bytes serialized bytes<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> * @param offset the start offset into the byte[] buffer<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> * @param length how far we should read into the byte[] buffer<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> * @return All the RegionInfos that are in the byte array. Keeps reading till we hit the end.<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> */<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> static List<RegionInfo> parseDelimitedFrom(final byte[] bytes, final int offset,<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> final int length) throws IOException {<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> if (bytes == null) {<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> throw new IllegalArgumentException("Can't build an object with empty bytes array");<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> }<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> List<RegionInfo> ris = new ArrayList<>();<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> try (DataInputBuffer in = new DataInputBuffer()) {<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> in.reset(bytes, offset, length);<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> while (in.available() > 0) {<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> RegionInfo ri = parseFrom(in);<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> ris.add(ri);<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> }<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> }<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> return ris;<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> }<a name="line.764"></a> |
| <span class="sourceLineNo">765</span><a name="line.765"></a> |
| <span class="sourceLineNo">766</span> /**<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> * @return True if this is first Region in Table<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> */<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> default boolean isFirst() {<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> return Bytes.equals(getStartKey(), HConstants.EMPTY_START_ROW);<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> }<a name="line.771"></a> |
| <span class="sourceLineNo">772</span><a name="line.772"></a> |
| <span class="sourceLineNo">773</span> /**<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> * @return True if this is last Region in Table<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> */<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> default boolean isLast() {<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> return Bytes.equals(getEndKey(), HConstants.EMPTY_END_ROW);<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> }<a name="line.778"></a> |
| <span class="sourceLineNo">779</span><a name="line.779"></a> |
| <span class="sourceLineNo">780</span> /**<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> * @return True if region is next, adjacent but 'after' this one.<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> * @see #isAdjacent(RegionInfo)<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> * @see #areAdjacent(RegionInfo, RegionInfo)<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> */<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> default boolean isNext(RegionInfo after) {<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> return getTable().equals(after.getTable()) && Bytes.equals(getEndKey(), after.getStartKey());<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> }<a name="line.787"></a> |
| <span class="sourceLineNo">788</span><a name="line.788"></a> |
| <span class="sourceLineNo">789</span> /**<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> * @return True if region is adjacent, either just before or just after this one.<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> * @see #isNext(RegionInfo)<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> */<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> default boolean isAdjacent(RegionInfo other) {<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> return getTable().equals(other.getTable()) && areAdjacent(this, other);<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> }<a name="line.795"></a> |
| <span class="sourceLineNo">796</span><a name="line.796"></a> |
| <span class="sourceLineNo">797</span> /**<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> * @return True if RegionInfo is degenerate... if startKey > endKey.<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> */<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> default boolean isDegenerate() {<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> return !isLast() && Bytes.compareTo(getStartKey(), getEndKey()) > 0;<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> }<a name="line.802"></a> |
| <span class="sourceLineNo">803</span><a name="line.803"></a> |
| <span class="sourceLineNo">804</span> /**<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> * @return True if an overlap in region range.<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> * @see #isDegenerate()<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> */<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> default boolean isOverlap(RegionInfo other) {<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> if (other == null) {<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> return false;<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> }<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> if (!getTable().equals(other.getTable())) {<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> return false;<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> }<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> int startKeyCompare = Bytes.compareTo(getStartKey(), other.getStartKey());<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> if (startKeyCompare == 0) {<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> return true;<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> }<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> if (startKeyCompare < 0) {<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> if (isLast()) {<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> return true;<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> }<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> return Bytes.compareTo(getEndKey(), other.getStartKey()) > 0;<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> }<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> if (other.isLast()) {<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> return true;<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> }<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> return Bytes.compareTo(getStartKey(), other.getEndKey()) < 0;<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> }<a name="line.829"></a> |
| <span class="sourceLineNo">830</span><a name="line.830"></a> |
| <span class="sourceLineNo">831</span> default int compareTo(RegionInfo other) {<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> return RegionInfo.COMPARATOR.compare(this, other);<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> }<a name="line.833"></a> |
| <span class="sourceLineNo">834</span>}<a name="line.834"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
