http://git-wip-us.apache.org/repos/asf/hbase-site/blob/08a3774c/apidocs/src-html/org/apache/hadoop/hbase/HRegionInfo.html ---------------------------------------------------------------------- diff --git a/apidocs/src-html/org/apache/hadoop/hbase/HRegionInfo.html b/apidocs/src-html/org/apache/hadoop/hbase/HRegionInfo.html index 0586d0b..5423337 100644 --- a/apidocs/src-html/org/apache/hadoop/hbase/HRegionInfo.html +++ b/apidocs/src-html/org/apache/hadoop/hbase/HRegionInfo.html @@ -51,1166 +51,1180 @@ <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.JenkinsHash;<a name="line.43"></a> <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.util.MD5Hash;<a name="line.44"></a> <span class="sourceLineNo">045</span>import org.apache.hadoop.io.DataInputBuffer;<a name="line.45"></a> -<span class="sourceLineNo">046</span><a name="line.46"></a> -<span class="sourceLineNo">047</span>/**<a name="line.47"></a> -<span class="sourceLineNo">048</span> * Information about a region. A region is a range of keys in the whole keyspace of a table, an<a name="line.48"></a> -<span class="sourceLineNo">049</span> * identifier (a timestamp) for differentiating between subset ranges (after region split)<a name="line.49"></a> -<span class="sourceLineNo">050</span> * and a replicaId for differentiating the instance for the same range and some status information<a name="line.50"></a> -<span class="sourceLineNo">051</span> * about the region.<a name="line.51"></a> -<span class="sourceLineNo">052</span> *<a name="line.52"></a> -<span class="sourceLineNo">053</span> * The region has a unique name which consists of the following fields:<a name="line.53"></a> -<span class="sourceLineNo">054</span> * <ul><a name="line.54"></a> -<span class="sourceLineNo">055</span> * <li> tableName : The name of the table </li><a name="line.55"></a> -<span class="sourceLineNo">056</span> * <li> startKey : The startKey for the region. </li><a name="line.56"></a> -<span class="sourceLineNo">057</span> * <li> regionId : A timestamp when the region is created. </li><a name="line.57"></a> -<span class="sourceLineNo">058</span> * <li> replicaId : An id starting from 0 to differentiate replicas of the same region range<a name="line.58"></a> -<span class="sourceLineNo">059</span> * but hosted in separated servers. The same region range can be hosted in multiple locations.</li><a name="line.59"></a> -<span class="sourceLineNo">060</span> * <li> encodedName : An MD5 encoded string for the region name.</li><a name="line.60"></a> -<span class="sourceLineNo">061</span> * </ul><a name="line.61"></a> -<span class="sourceLineNo">062</span> *<a name="line.62"></a> -<span class="sourceLineNo">063</span> * <br> Other than the fields in the region name, region info contains:<a name="line.63"></a> -<span class="sourceLineNo">064</span> * <ul><a name="line.64"></a> -<span class="sourceLineNo">065</span> * <li> endKey : the endKey for the region (exclusive) </li><a name="line.65"></a> -<span class="sourceLineNo">066</span> * <li> split : Whether the region is split </li><a name="line.66"></a> -<span class="sourceLineNo">067</span> * <li> offline : Whether the region is offline </li><a name="line.67"></a> -<span class="sourceLineNo">068</span> * </ul><a name="line.68"></a> -<span class="sourceLineNo">069</span> *<a name="line.69"></a> -<span class="sourceLineNo">070</span> * In 0.98 or before, a list of table's regions would fully cover the total keyspace, and at any<a name="line.70"></a> -<span class="sourceLineNo">071</span> * point in time, a row key always belongs to a single region, which is hosted in a single server.<a name="line.71"></a> -<span class="sourceLineNo">072</span> * In 0.99+, a region can have multiple instances (called replicas), and thus a range (or row) can<a name="line.72"></a> -<span class="sourceLineNo">073</span> * correspond to multiple HRegionInfo's. These HRI's share the same fields however except the<a name="line.73"></a> -<span class="sourceLineNo">074</span> * replicaId field. If the replicaId is not set, it defaults to 0, which is compatible with the<a name="line.74"></a> -<span class="sourceLineNo">075</span> * previous behavior of a range corresponding to 1 region.<a name="line.75"></a> -<span class="sourceLineNo">076</span> */<a name="line.76"></a> -<span class="sourceLineNo">077</span>@InterfaceAudience.Public<a name="line.77"></a> -<span class="sourceLineNo">078</span>@InterfaceStability.Evolving<a name="line.78"></a> -<span class="sourceLineNo">079</span>public class HRegionInfo implements Comparable<HRegionInfo> {<a name="line.79"></a> -<span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> private static final Log LOG = LogFactory.getLog(HRegionInfo.class);<a name="line.81"></a> -<span class="sourceLineNo">082</span><a name="line.82"></a> -<span class="sourceLineNo">083</span> /**<a name="line.83"></a> -<span class="sourceLineNo">084</span> * The new format for a region name contains its encodedName at the end.<a name="line.84"></a> -<span class="sourceLineNo">085</span> * The encoded name also serves as the directory name for the region<a name="line.85"></a> -<span class="sourceLineNo">086</span> * in the filesystem.<a name="line.86"></a> -<span class="sourceLineNo">087</span> *<a name="line.87"></a> -<span class="sourceLineNo">088</span> * New region name format:<a name="line.88"></a> -<span class="sourceLineNo">089</span> * &lt;tablename>,,&lt;startkey>,&lt;regionIdTimestamp>.&lt;encodedName>.<a name="line.89"></a> -<span class="sourceLineNo">090</span> * where,<a name="line.90"></a> -<span class="sourceLineNo">091</span> * &lt;encodedName> is a hex version of the MD5 hash of<a name="line.91"></a> -<span class="sourceLineNo">092</span> * &lt;tablename>,&lt;startkey>,&lt;regionIdTimestamp><a name="line.92"></a> -<span class="sourceLineNo">093</span> *<a name="line.93"></a> -<span class="sourceLineNo">094</span> * The old region name format:<a name="line.94"></a> -<span class="sourceLineNo">095</span> * &lt;tablename>,&lt;startkey>,&lt;regionIdTimestamp><a name="line.95"></a> -<span class="sourceLineNo">096</span> * For region names in the old format, the encoded name is a 32-bit<a name="line.96"></a> -<span class="sourceLineNo">097</span> * JenkinsHash integer value (in its decimal notation, string form).<a name="line.97"></a> -<span class="sourceLineNo">098</span> *<p><a name="line.98"></a> -<span class="sourceLineNo">099</span> * **NOTE**<a name="line.99"></a> -<span class="sourceLineNo">100</span> *<a name="line.100"></a> -<span class="sourceLineNo">101</span> * The first hbase:meta region, and regions created by an older<a name="line.101"></a> -<span class="sourceLineNo">102</span> * version of HBase (0.20 or prior) will continue to use the<a name="line.102"></a> -<span class="sourceLineNo">103</span> * old region name format.<a name="line.103"></a> -<span class="sourceLineNo">104</span> */<a name="line.104"></a> -<span class="sourceLineNo">105</span><a name="line.105"></a> -<span class="sourceLineNo">106</span> /** Separator used to demarcate the encodedName in a region name<a name="line.106"></a> -<span class="sourceLineNo">107</span> * in the new format. See description on new format above.<a name="line.107"></a> -<span class="sourceLineNo">108</span> */<a name="line.108"></a> -<span class="sourceLineNo">109</span> private static final int ENC_SEPARATOR = '.';<a name="line.109"></a> -<span class="sourceLineNo">110</span> public static final int MD5_HEX_LENGTH = 32;<a name="line.110"></a> -<span class="sourceLineNo">111</span><a name="line.111"></a> -<span class="sourceLineNo">112</span> /** A non-capture group so that this can be embedded. */<a name="line.112"></a> -<span class="sourceLineNo">113</span> public static final String ENCODED_REGION_NAME_REGEX = "(?:[a-f0-9]+)";<a name="line.113"></a> -<span class="sourceLineNo">114</span><a name="line.114"></a> -<span class="sourceLineNo">115</span> // to keep appended int's sorted in string format. Only allows 2 bytes to be<a name="line.115"></a> -<span class="sourceLineNo">116</span> // sorted for replicaId<a name="line.116"></a> -<span class="sourceLineNo">117</span> public static final String REPLICA_ID_FORMAT = "%04X";<a name="line.117"></a> -<span class="sourceLineNo">118</span><a name="line.118"></a> -<span class="sourceLineNo">119</span> public static final byte REPLICA_ID_DELIMITER = (byte)'_';<a name="line.119"></a> -<span class="sourceLineNo">120</span><a name="line.120"></a> -<span class="sourceLineNo">121</span> private static final int MAX_REPLICA_ID = 0xFFFF;<a name="line.121"></a> -<span class="sourceLineNo">122</span> public static final int DEFAULT_REPLICA_ID = 0;<a name="line.122"></a> -<span class="sourceLineNo">123</span><a name="line.123"></a> -<span class="sourceLineNo">124</span> public static final String INVALID_REGION_NAME_FORMAT_MESSAGE = "Invalid regionName format";<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> /**<a name="line.126"></a> -<span class="sourceLineNo">127</span> * Does region name contain its encoded name?<a name="line.127"></a> -<span class="sourceLineNo">128</span> * @param regionName region name<a name="line.128"></a> -<span class="sourceLineNo">129</span> * @return boolean indicating if this a new format region<a name="line.129"></a> -<span class="sourceLineNo">130</span> * name which contains its encoded name.<a name="line.130"></a> -<span class="sourceLineNo">131</span> */<a name="line.131"></a> -<span class="sourceLineNo">132</span> private static boolean hasEncodedName(final byte[] regionName) {<a name="line.132"></a> -<span class="sourceLineNo">133</span> // check if region name ends in ENC_SEPARATOR<a name="line.133"></a> -<span class="sourceLineNo">134</span> if ((regionName.length >= 1)<a name="line.134"></a> -<span class="sourceLineNo">135</span> && (regionName[regionName.length - 1] == ENC_SEPARATOR)) {<a name="line.135"></a> -<span class="sourceLineNo">136</span> // region name is new format. it contains the encoded name.<a name="line.136"></a> -<span class="sourceLineNo">137</span> return true;<a name="line.137"></a> -<span class="sourceLineNo">138</span> }<a name="line.138"></a> -<span class="sourceLineNo">139</span> return false;<a name="line.139"></a> -<span class="sourceLineNo">140</span> }<a name="line.140"></a> -<span class="sourceLineNo">141</span><a name="line.141"></a> -<span class="sourceLineNo">142</span> /**<a name="line.142"></a> -<span class="sourceLineNo">143</span> * @param regionName<a name="line.143"></a> -<span class="sourceLineNo">144</span> * @return the encodedName<a name="line.144"></a> -<span class="sourceLineNo">145</span> */<a name="line.145"></a> -<span class="sourceLineNo">146</span> public static String encodeRegionName(final byte [] regionName) {<a name="line.146"></a> -<span class="sourceLineNo">147</span> String encodedName;<a name="line.147"></a> -<span class="sourceLineNo">148</span> if (hasEncodedName(regionName)) {<a name="line.148"></a> -<span class="sourceLineNo">149</span> // region is in new format:<a name="line.149"></a> -<span class="sourceLineNo">150</span> // <tableName>,<startKey>,<regionIdTimeStamp>/encodedName/<a name="line.150"></a> -<span class="sourceLineNo">151</span> encodedName = Bytes.toString(regionName,<a name="line.151"></a> -<span class="sourceLineNo">152</span> regionName.length - MD5_HEX_LENGTH - 1,<a name="line.152"></a> -<span class="sourceLineNo">153</span> MD5_HEX_LENGTH);<a name="line.153"></a> -<span class="sourceLineNo">154</span> } else {<a name="line.154"></a> -<span class="sourceLineNo">155</span> // old format region name. First hbase:meta region also<a name="line.155"></a> -<span class="sourceLineNo">156</span> // use this format.EncodedName is the JenkinsHash value.<a name="line.156"></a> -<span class="sourceLineNo">157</span> HashKey<byte[]> key = new ByteArrayHashKey(regionName, 0, regionName.length);<a name="line.157"></a> -<span class="sourceLineNo">158</span> int hashVal = Math.abs(JenkinsHash.getInstance().hash(key, 0));<a name="line.158"></a> -<span class="sourceLineNo">159</span> encodedName = String.valueOf(hashVal);<a name="line.159"></a> -<span class="sourceLineNo">160</span> }<a name="line.160"></a> -<span class="sourceLineNo">161</span> return encodedName;<a name="line.161"></a> -<span class="sourceLineNo">162</span> }<a name="line.162"></a> -<span class="sourceLineNo">163</span><a name="line.163"></a> -<span class="sourceLineNo">164</span> /**<a name="line.164"></a> -<span class="sourceLineNo">165</span> * @return Return a short, printable name for this region (usually encoded name) for us logging.<a name="line.165"></a> -<span class="sourceLineNo">166</span> */<a name="line.166"></a> -<span class="sourceLineNo">167</span> public String getShortNameToLog() {<a name="line.167"></a> -<span class="sourceLineNo">168</span> return prettyPrint(this.getEncodedName());<a name="line.168"></a> -<span class="sourceLineNo">169</span> }<a name="line.169"></a> -<span class="sourceLineNo">170</span><a name="line.170"></a> -<span class="sourceLineNo">171</span> /**<a name="line.171"></a> -<span class="sourceLineNo">172</span> * Use logging.<a name="line.172"></a> -<span class="sourceLineNo">173</span> * @param encodedRegionName The encoded regionname.<a name="line.173"></a> -<span class="sourceLineNo">174</span> * @return <code>hbase:meta</code> if passed <code>1028785192</code> else returns<a name="line.174"></a> -<span class="sourceLineNo">175</span> * <code>encodedRegionName</code><a name="line.175"></a> -<span class="sourceLineNo">176</span> */<a name="line.176"></a> -<span class="sourceLineNo">177</span> public static String prettyPrint(final String encodedRegionName) {<a name="line.177"></a> -<span class="sourceLineNo">178</span> if (encodedRegionName.equals("1028785192")) {<a name="line.178"></a> -<span class="sourceLineNo">179</span> return encodedRegionName + "/hbase:meta";<a name="line.179"></a> -<span class="sourceLineNo">180</span> }<a name="line.180"></a> -<span class="sourceLineNo">181</span> return encodedRegionName;<a name="line.181"></a> -<span class="sourceLineNo">182</span> }<a name="line.182"></a> -<span class="sourceLineNo">183</span><a name="line.183"></a> -<span class="sourceLineNo">184</span> private byte [] endKey = HConstants.EMPTY_BYTE_ARRAY;<a name="line.184"></a> -<span class="sourceLineNo">185</span> // This flag is in the parent of a split while the parent is still referenced<a name="line.185"></a> -<span class="sourceLineNo">186</span> // by daughter regions. We USED to set this flag when we disabled a table<a name="line.186"></a> -<span class="sourceLineNo">187</span> // but now table state is kept up in zookeeper as of 0.90.0 HBase.<a name="line.187"></a> -<span class="sourceLineNo">188</span> private boolean offLine = false;<a name="line.188"></a> -<span class="sourceLineNo">189</span> private long regionId = -1;<a name="line.189"></a> -<span class="sourceLineNo">190</span> private transient byte [] regionName = HConstants.EMPTY_BYTE_ARRAY;<a name="line.190"></a> -<span class="sourceLineNo">191</span> private boolean split = false;<a name="line.191"></a> -<span class="sourceLineNo">192</span> private byte [] startKey = HConstants.EMPTY_BYTE_ARRAY;<a name="line.192"></a> -<span class="sourceLineNo">193</span> private int hashCode = -1;<a name="line.193"></a> -<span class="sourceLineNo">194</span> //TODO: Move NO_HASH to HStoreFile which is really the only place it is used.<a name="line.194"></a> -<span class="sourceLineNo">195</span> public static final String NO_HASH = null;<a name="line.195"></a> -<span class="sourceLineNo">196</span> private String encodedName = null;<a name="line.196"></a> -<span class="sourceLineNo">197</span> private byte [] encodedNameAsBytes = null;<a name="line.197"></a> -<span class="sourceLineNo">198</span> private int replicaId = DEFAULT_REPLICA_ID;<a name="line.198"></a> -<span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> // Current TableName<a name="line.200"></a> -<span class="sourceLineNo">201</span> private TableName tableName = null;<a name="line.201"></a> -<span class="sourceLineNo">202</span> final static String DISPLAY_KEYS_KEY = "hbase.display.keys";<a name="line.202"></a> -<span class="sourceLineNo">203</span> public final static byte[] HIDDEN_END_KEY = Bytes.toBytes("hidden-end-key");<a name="line.203"></a> -<span class="sourceLineNo">204</span> public final static byte[] HIDDEN_START_KEY = Bytes.toBytes("hidden-start-key");<a name="line.204"></a> -<span class="sourceLineNo">205</span><a name="line.205"></a> -<span class="sourceLineNo">206</span> /** HRegionInfo for first meta region */<a name="line.206"></a> -<span class="sourceLineNo">207</span> // TODO: How come Meta regions still do not have encoded region names? Fix.<a name="line.207"></a> -<span class="sourceLineNo">208</span> public static final HRegionInfo FIRST_META_REGIONINFO =<a name="line.208"></a> -<span class="sourceLineNo">209</span> new HRegionInfo(1L, TableName.META_TABLE_NAME);<a name="line.209"></a> -<span class="sourceLineNo">210</span><a name="line.210"></a> -<span class="sourceLineNo">211</span> private void setHashCode() {<a name="line.211"></a> -<span class="sourceLineNo">212</span> int result = Arrays.hashCode(this.regionName);<a name="line.212"></a> -<span class="sourceLineNo">213</span> result ^= this.regionId;<a name="line.213"></a> -<span class="sourceLineNo">214</span> result ^= Arrays.hashCode(this.startKey);<a name="line.214"></a> -<span class="sourceLineNo">215</span> result ^= Arrays.hashCode(this.endKey);<a name="line.215"></a> -<span class="sourceLineNo">216</span> result ^= Boolean.valueOf(this.offLine).hashCode();<a name="line.216"></a> -<span class="sourceLineNo">217</span> result ^= Arrays.hashCode(this.tableName.getName());<a name="line.217"></a> -<span class="sourceLineNo">218</span> result ^= this.replicaId;<a name="line.218"></a> -<span class="sourceLineNo">219</span> this.hashCode = result;<a name="line.219"></a> -<span class="sourceLineNo">220</span> }<a name="line.220"></a> -<span class="sourceLineNo">221</span><a name="line.221"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.util.StringUtils;<a name="line.46"></a> +<span class="sourceLineNo">047</span><a name="line.47"></a> +<span class="sourceLineNo">048</span>/**<a name="line.48"></a> +<span class="sourceLineNo">049</span> * Information about a region. A region is a range of keys in the whole keyspace of a table, an<a name="line.49"></a> +<span class="sourceLineNo">050</span> * identifier (a timestamp) for differentiating between subset ranges (after region split)<a name="line.50"></a> +<span class="sourceLineNo">051</span> * and a replicaId for differentiating the instance for the same range and some status information<a name="line.51"></a> +<span class="sourceLineNo">052</span> * about the region.<a name="line.52"></a> +<span class="sourceLineNo">053</span> *<a name="line.53"></a> +<span class="sourceLineNo">054</span> * The region has a unique name which consists of the following fields:<a name="line.54"></a> +<span class="sourceLineNo">055</span> * <ul><a name="line.55"></a> +<span class="sourceLineNo">056</span> * <li> tableName : The name of the table </li><a name="line.56"></a> +<span class="sourceLineNo">057</span> * <li> startKey : The startKey for the region. </li><a name="line.57"></a> +<span class="sourceLineNo">058</span> * <li> regionId : A timestamp when the region is created. </li><a name="line.58"></a> +<span class="sourceLineNo">059</span> * <li> replicaId : An id starting from 0 to differentiate replicas of the same region range<a name="line.59"></a> +<span class="sourceLineNo">060</span> * but hosted in separated servers. The same region range can be hosted in multiple locations.</li><a name="line.60"></a> +<span class="sourceLineNo">061</span> * <li> encodedName : An MD5 encoded string for the region name.</li><a name="line.61"></a> +<span class="sourceLineNo">062</span> * </ul><a name="line.62"></a> +<span class="sourceLineNo">063</span> *<a name="line.63"></a> +<span class="sourceLineNo">064</span> * <br> Other than the fields in the region name, region info contains:<a name="line.64"></a> +<span class="sourceLineNo">065</span> * <ul><a name="line.65"></a> +<span class="sourceLineNo">066</span> * <li> endKey : the endKey for the region (exclusive) </li><a name="line.66"></a> +<span class="sourceLineNo">067</span> * <li> split : Whether the region is split </li><a name="line.67"></a> +<span class="sourceLineNo">068</span> * <li> offline : Whether the region is offline </li><a name="line.68"></a> +<span class="sourceLineNo">069</span> * </ul><a name="line.69"></a> +<span class="sourceLineNo">070</span> *<a name="line.70"></a> +<span class="sourceLineNo">071</span> * In 0.98 or before, a list of table's regions would fully cover the total keyspace, and at any<a name="line.71"></a> +<span class="sourceLineNo">072</span> * point in time, a row key always belongs to a single region, which is hosted in a single server.<a name="line.72"></a> +<span class="sourceLineNo">073</span> * In 0.99+, a region can have multiple instances (called replicas), and thus a range (or row) can<a name="line.73"></a> +<span class="sourceLineNo">074</span> * correspond to multiple HRegionInfo's. These HRI's share the same fields however except the<a name="line.74"></a> +<span class="sourceLineNo">075</span> * replicaId field. If the replicaId is not set, it defaults to 0, which is compatible with the<a name="line.75"></a> +<span class="sourceLineNo">076</span> * previous behavior of a range corresponding to 1 region.<a name="line.76"></a> +<span class="sourceLineNo">077</span> */<a name="line.77"></a> +<span class="sourceLineNo">078</span>@InterfaceAudience.Public<a name="line.78"></a> +<span class="sourceLineNo">079</span>@InterfaceStability.Evolving<a name="line.79"></a> +<span class="sourceLineNo">080</span>public class HRegionInfo implements Comparable<HRegionInfo> {<a name="line.80"></a> +<span class="sourceLineNo">081</span><a name="line.81"></a> +<span class="sourceLineNo">082</span> private static final Log LOG = LogFactory.getLog(HRegionInfo.class);<a name="line.82"></a> +<span class="sourceLineNo">083</span><a name="line.83"></a> +<span class="sourceLineNo">084</span> /**<a name="line.84"></a> +<span class="sourceLineNo">085</span> * The new format for a region name contains its encodedName at the end.<a name="line.85"></a> +<span class="sourceLineNo">086</span> * The encoded name also serves as the directory name for the region<a name="line.86"></a> +<span class="sourceLineNo">087</span> * in the filesystem.<a name="line.87"></a> +<span class="sourceLineNo">088</span> *<a name="line.88"></a> +<span class="sourceLineNo">089</span> * New region name format:<a name="line.89"></a> +<span class="sourceLineNo">090</span> * &lt;tablename>,,&lt;startkey>,&lt;regionIdTimestamp>.&lt;encodedName>.<a name="line.90"></a> +<span class="sourceLineNo">091</span> * where,<a name="line.91"></a> +<span class="sourceLineNo">092</span> * &lt;encodedName> is a hex version of the MD5 hash of<a name="line.92"></a> +<span class="sourceLineNo">093</span> * &lt;tablename>,&lt;startkey>,&lt;regionIdTimestamp><a name="line.93"></a> +<span class="sourceLineNo">094</span> *<a name="line.94"></a> +<span class="sourceLineNo">095</span> * The old region name format:<a name="line.95"></a> +<span class="sourceLineNo">096</span> * &lt;tablename>,&lt;startkey>,&lt;regionIdTimestamp><a name="line.96"></a> +<span class="sourceLineNo">097</span> * For region names in the old format, the encoded name is a 32-bit<a name="line.97"></a> +<span class="sourceLineNo">098</span> * JenkinsHash integer value (in its decimal notation, string form).<a name="line.98"></a> +<span class="sourceLineNo">099</span> *<p><a name="line.99"></a> +<span class="sourceLineNo">100</span> * **NOTE**<a name="line.100"></a> +<span class="sourceLineNo">101</span> *<a name="line.101"></a> +<span class="sourceLineNo">102</span> * The first hbase:meta region, and regions created by an older<a name="line.102"></a> +<span class="sourceLineNo">103</span> * version of HBase (0.20 or prior) will continue to use the<a name="line.103"></a> +<span class="sourceLineNo">104</span> * old region name format.<a name="line.104"></a> +<span class="sourceLineNo">105</span> */<a name="line.105"></a> +<span class="sourceLineNo">106</span><a name="line.106"></a> +<span class="sourceLineNo">107</span> /** Separator used to demarcate the encodedName in a region name<a name="line.107"></a> +<span class="sourceLineNo">108</span> * in the new format. See description on new format above.<a name="line.108"></a> +<span class="sourceLineNo">109</span> */<a name="line.109"></a> +<span class="sourceLineNo">110</span> private static final int ENC_SEPARATOR = '.';<a name="line.110"></a> +<span class="sourceLineNo">111</span> public static final int MD5_HEX_LENGTH = 32;<a name="line.111"></a> +<span class="sourceLineNo">112</span><a name="line.112"></a> +<span class="sourceLineNo">113</span> /** A non-capture group so that this can be embedded. */<a name="line.113"></a> +<span class="sourceLineNo">114</span> public static final String ENCODED_REGION_NAME_REGEX = "(?:[a-f0-9]+)";<a name="line.114"></a> +<span class="sourceLineNo">115</span><a name="line.115"></a> +<span class="sourceLineNo">116</span> // to keep appended int's sorted in string format. Only allows 2 bytes to be<a name="line.116"></a> +<span class="sourceLineNo">117</span> // sorted for replicaId<a name="line.117"></a> +<span class="sourceLineNo">118</span> public static final String REPLICA_ID_FORMAT = "%04X";<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> public static final byte REPLICA_ID_DELIMITER = (byte)'_';<a name="line.120"></a> +<span class="sourceLineNo">121</span><a name="line.121"></a> +<span class="sourceLineNo">122</span> private static final int MAX_REPLICA_ID = 0xFFFF;<a name="line.122"></a> +<span class="sourceLineNo">123</span> public static final int DEFAULT_REPLICA_ID = 0;<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> public static final String INVALID_REGION_NAME_FORMAT_MESSAGE = "Invalid regionName format";<a name="line.125"></a> +<span class="sourceLineNo">126</span><a name="line.126"></a> +<span class="sourceLineNo">127</span> /**<a name="line.127"></a> +<span class="sourceLineNo">128</span> * Does region name contain its encoded name?<a name="line.128"></a> +<span class="sourceLineNo">129</span> * @param regionName region name<a name="line.129"></a> +<span class="sourceLineNo">130</span> * @return boolean indicating if this a new format region<a name="line.130"></a> +<span class="sourceLineNo">131</span> * name which contains its encoded name.<a name="line.131"></a> +<span class="sourceLineNo">132</span> */<a name="line.132"></a> +<span class="sourceLineNo">133</span> private static boolean hasEncodedName(final byte[] regionName) {<a name="line.133"></a> +<span class="sourceLineNo">134</span> // check if region name ends in ENC_SEPARATOR<a name="line.134"></a> +<span class="sourceLineNo">135</span> if ((regionName.length >= 1)<a name="line.135"></a> +<span class="sourceLineNo">136</span> && (regionName[regionName.length - 1] == ENC_SEPARATOR)) {<a name="line.136"></a> +<span class="sourceLineNo">137</span> // region name is new format. it contains the encoded name.<a name="line.137"></a> +<span class="sourceLineNo">138</span> return true;<a name="line.138"></a> +<span class="sourceLineNo">139</span> }<a name="line.139"></a> +<span class="sourceLineNo">140</span> return false;<a name="line.140"></a> +<span class="sourceLineNo">141</span> }<a name="line.141"></a> +<span class="sourceLineNo">142</span><a name="line.142"></a> +<span class="sourceLineNo">143</span> /**<a name="line.143"></a> +<span class="sourceLineNo">144</span> * @param regionName<a name="line.144"></a> +<span class="sourceLineNo">145</span> * @return the encodedName<a name="line.145"></a> +<span class="sourceLineNo">146</span> */<a name="line.146"></a> +<span class="sourceLineNo">147</span> public static String encodeRegionName(final byte [] regionName) {<a name="line.147"></a> +<span class="sourceLineNo">148</span> String encodedName;<a name="line.148"></a> +<span class="sourceLineNo">149</span> if (hasEncodedName(regionName)) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> // region is in new format:<a name="line.150"></a> +<span class="sourceLineNo">151</span> // <tableName>,<startKey>,<regionIdTimeStamp>/encodedName/<a name="line.151"></a> +<span class="sourceLineNo">152</span> encodedName = Bytes.toString(regionName,<a name="line.152"></a> +<span class="sourceLineNo">153</span> regionName.length - MD5_HEX_LENGTH - 1,<a name="line.153"></a> +<span class="sourceLineNo">154</span> MD5_HEX_LENGTH);<a name="line.154"></a> +<span class="sourceLineNo">155</span> } else {<a name="line.155"></a> +<span class="sourceLineNo">156</span> // old format region name. First hbase:meta region also<a name="line.156"></a> +<span class="sourceLineNo">157</span> // use this format.EncodedName is the JenkinsHash value.<a name="line.157"></a> +<span class="sourceLineNo">158</span> HashKey<byte[]> key = new ByteArrayHashKey(regionName, 0, regionName.length);<a name="line.158"></a> +<span class="sourceLineNo">159</span> int hashVal = Math.abs(JenkinsHash.getInstance().hash(key, 0));<a name="line.159"></a> +<span class="sourceLineNo">160</span> encodedName = String.valueOf(hashVal);<a name="line.160"></a> +<span class="sourceLineNo">161</span> }<a name="line.161"></a> +<span class="sourceLineNo">162</span> return encodedName;<a name="line.162"></a> +<span class="sourceLineNo">163</span> }<a name="line.163"></a> +<span class="sourceLineNo">164</span><a name="line.164"></a> +<span class="sourceLineNo">165</span> /**<a name="line.165"></a> +<span class="sourceLineNo">166</span> * @return Return a short, printable name for this region (usually encoded name) for us logging.<a name="line.166"></a> +<span class="sourceLineNo">167</span> */<a name="line.167"></a> +<span class="sourceLineNo">168</span> public String getShortNameToLog() {<a name="line.168"></a> +<span class="sourceLineNo">169</span> return prettyPrint(this.getEncodedName());<a name="line.169"></a> +<span class="sourceLineNo">170</span> }<a name="line.170"></a> +<span class="sourceLineNo">171</span><a name="line.171"></a> +<span class="sourceLineNo">172</span> /**<a name="line.172"></a> +<span class="sourceLineNo">173</span> * Use logging.<a name="line.173"></a> +<span class="sourceLineNo">174</span> * @param encodedRegionName The encoded regionname.<a name="line.174"></a> +<span class="sourceLineNo">175</span> * @return <code>hbase:meta</code> if passed <code>1028785192</code> else returns<a name="line.175"></a> +<span class="sourceLineNo">176</span> * <code>encodedRegionName</code><a name="line.176"></a> +<span class="sourceLineNo">177</span> */<a name="line.177"></a> +<span class="sourceLineNo">178</span> public static String prettyPrint(final String encodedRegionName) {<a name="line.178"></a> +<span class="sourceLineNo">179</span> if (encodedRegionName.equals("1028785192")) {<a name="line.179"></a> +<span class="sourceLineNo">180</span> return encodedRegionName + "/hbase:meta";<a name="line.180"></a> +<span class="sourceLineNo">181</span> }<a name="line.181"></a> +<span class="sourceLineNo">182</span> return encodedRegionName;<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> private byte [] endKey = HConstants.EMPTY_BYTE_ARRAY;<a name="line.185"></a> +<span class="sourceLineNo">186</span> // This flag is in the parent of a split while the parent is still referenced<a name="line.186"></a> +<span class="sourceLineNo">187</span> // by daughter regions. We USED to set this flag when we disabled a table<a name="line.187"></a> +<span class="sourceLineNo">188</span> // but now table state is kept up in zookeeper as of 0.90.0 HBase.<a name="line.188"></a> +<span class="sourceLineNo">189</span> private boolean offLine = false;<a name="line.189"></a> +<span class="sourceLineNo">190</span> private long regionId = -1;<a name="line.190"></a> +<span class="sourceLineNo">191</span> private transient byte [] regionName = HConstants.EMPTY_BYTE_ARRAY;<a name="line.191"></a> +<span class="sourceLineNo">192</span> private boolean split = false;<a name="line.192"></a> +<span class="sourceLineNo">193</span> private byte [] startKey = HConstants.EMPTY_BYTE_ARRAY;<a name="line.193"></a> +<span class="sourceLineNo">194</span> private int hashCode = -1;<a name="line.194"></a> +<span class="sourceLineNo">195</span> //TODO: Move NO_HASH to HStoreFile which is really the only place it is used.<a name="line.195"></a> +<span class="sourceLineNo">196</span> public static final String NO_HASH = null;<a name="line.196"></a> +<span class="sourceLineNo">197</span> private String encodedName = null;<a name="line.197"></a> +<span class="sourceLineNo">198</span> private byte [] encodedNameAsBytes = null;<a name="line.198"></a> +<span class="sourceLineNo">199</span> private int replicaId = DEFAULT_REPLICA_ID;<a name="line.199"></a> +<span class="sourceLineNo">200</span><a name="line.200"></a> +<span class="sourceLineNo">201</span> // Current TableName<a name="line.201"></a> +<span class="sourceLineNo">202</span> private TableName tableName = null;<a name="line.202"></a> +<span class="sourceLineNo">203</span> final static String DISPLAY_KEYS_KEY = "hbase.display.keys";<a name="line.203"></a> +<span class="sourceLineNo">204</span> public final static byte[] HIDDEN_END_KEY = Bytes.toBytes("hidden-end-key");<a name="line.204"></a> +<span class="sourceLineNo">205</span> public final static byte[] HIDDEN_START_KEY = Bytes.toBytes("hidden-start-key");<a name="line.205"></a> +<span class="sourceLineNo">206</span><a name="line.206"></a> +<span class="sourceLineNo">207</span> /** HRegionInfo for first meta region */<a name="line.207"></a> +<span class="sourceLineNo">208</span> // TODO: How come Meta regions still do not have encoded region names? Fix.<a name="line.208"></a> +<span class="sourceLineNo">209</span> public static final HRegionInfo FIRST_META_REGIONINFO =<a name="line.209"></a> +<span class="sourceLineNo">210</span> new HRegionInfo(1L, TableName.META_TABLE_NAME);<a name="line.210"></a> +<span class="sourceLineNo">211</span><a name="line.211"></a> +<span class="sourceLineNo">212</span> private void setHashCode() {<a name="line.212"></a> +<span class="sourceLineNo">213</span> int result = Arrays.hashCode(this.regionName);<a name="line.213"></a> +<span class="sourceLineNo">214</span> result ^= this.regionId;<a name="line.214"></a> +<span class="sourceLineNo">215</span> result ^= Arrays.hashCode(this.startKey);<a name="line.215"></a> +<span class="sourceLineNo">216</span> result ^= Arrays.hashCode(this.endKey);<a name="line.216"></a> +<span class="sourceLineNo">217</span> result ^= Boolean.valueOf(this.offLine).hashCode();<a name="line.217"></a> +<span class="sourceLineNo">218</span> result ^= Arrays.hashCode(this.tableName.getName());<a name="line.218"></a> +<span class="sourceLineNo">219</span> result ^= this.replicaId;<a name="line.219"></a> +<span class="sourceLineNo">220</span> this.hashCode = result;<a name="line.220"></a> +<span class="sourceLineNo">221</span> }<a name="line.221"></a> <span class="sourceLineNo">222</span><a name="line.222"></a> -<span class="sourceLineNo">223</span> /**<a name="line.223"></a> -<span class="sourceLineNo">224</span> * Private constructor used constructing HRegionInfo for the<a name="line.224"></a> -<span class="sourceLineNo">225</span> * first meta regions<a name="line.225"></a> -<span class="sourceLineNo">226</span> */<a name="line.226"></a> -<span class="sourceLineNo">227</span> private HRegionInfo(long regionId, TableName tableName) {<a name="line.227"></a> -<span class="sourceLineNo">228</span> this(regionId, tableName, DEFAULT_REPLICA_ID);<a name="line.228"></a> -<span class="sourceLineNo">229</span> }<a name="line.229"></a> -<span class="sourceLineNo">230</span><a name="line.230"></a> -<span class="sourceLineNo">231</span> public HRegionInfo(long regionId, TableName tableName, int replicaId) {<a name="line.231"></a> -<span class="sourceLineNo">232</span> super();<a name="line.232"></a> -<span class="sourceLineNo">233</span> this.regionId = regionId;<a name="line.233"></a> -<span class="sourceLineNo">234</span> this.tableName = tableName;<a name="line.234"></a> -<span class="sourceLineNo">235</span> this.replicaId = replicaId;<a name="line.235"></a> -<span class="sourceLineNo">236</span> // Note: First Meta region replicas names are in old format<a name="line.236"></a> -<span class="sourceLineNo">237</span> this.regionName = createRegionName(tableName, null, regionId, replicaId, false);<a name="line.237"></a> -<span class="sourceLineNo">238</span> setHashCode();<a name="line.238"></a> -<span class="sourceLineNo">239</span> }<a name="line.239"></a> -<span class="sourceLineNo">240</span><a name="line.240"></a> -<span class="sourceLineNo">241</span> public HRegionInfo(final TableName tableName) {<a name="line.241"></a> -<span class="sourceLineNo">242</span> this(tableName, null, null);<a name="line.242"></a> -<span class="sourceLineNo">243</span> }<a name="line.243"></a> -<span class="sourceLineNo">244</span><a name="line.244"></a> -<span class="sourceLineNo">245</span> /**<a name="line.245"></a> -<span class="sourceLineNo">246</span> * Construct HRegionInfo with explicit parameters<a name="line.246"></a> -<span class="sourceLineNo">247</span> *<a name="line.247"></a> -<span class="sourceLineNo">248</span> * @param tableName the table name<a name="line.248"></a> -<span class="sourceLineNo">249</span> * @param startKey first key in region<a name="line.249"></a> -<span class="sourceLineNo">250</span> * @param endKey end of key range<a name="line.250"></a> -<span class="sourceLineNo">251</span> * @throws IllegalArgumentException<a name="line.251"></a> -<span class="sourceLineNo">252</span> */<a 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class="sourceLineNo">273</span><a name="line.273"></a> -<span class="sourceLineNo">274</span> /**<a name="line.274"></a> -<span class="sourceLineNo">275</span> * Construct HRegionInfo with explicit parameters<a name="line.275"></a> -<span class="sourceLineNo">276</span> *<a name="line.276"></a> -<span class="sourceLineNo">277</span> * @param tableName the table descriptor<a name="line.277"></a> -<span class="sourceLineNo">278</span> * @param startKey first key in region<a name="line.278"></a> -<span class="sourceLineNo">279</span> * @param endKey end of key range<a name="line.279"></a> -<span class="sourceLineNo">280</span> * @param split true if this region has split and we have daughter regions<a name="line.280"></a> -<span class="sourceLineNo">281</span> * regions that may or may not hold references to this region.<a name="line.281"></a> -<span class="sourceLineNo">282</span> * @param regionid Region id to use.<a name="line.282"></a> -<span class="sourceLineNo">283</span> * @throws IllegalArgumentException<a name="line.283"></a> -<span class="sourceLineNo">284</span> */<a name="line.284"></a> -<span class="sourceLineNo">285</span> public HRegionInfo(final TableName tableName, final byte[] startKey,<a name="line.285"></a> -<span class="sourceLineNo">286</span> final byte[] endKey, final boolean split, final long regionid)<a name="line.286"></a> -<span class="sourceLineNo">287</span> throws IllegalArgumentException {<a name="line.287"></a> -<span class="sourceLineNo">288</span> this(tableName, startKey, endKey, split, regionid, DEFAULT_REPLICA_ID);<a name="line.288"></a> -<span class="sourceLineNo">289</span> }<a name="line.289"></a> -<span class="sourceLineNo">290</span><a name="line.290"></a> -<span class="sourceLineNo">291</span> /**<a name="line.291"></a> -<span class="sourceLineNo">292</span> * Construct HRegionInfo with explicit parameters<a name="line.292"></a> -<span class="sourceLineNo">293</span> *<a name="line.293"></a> -<span class="sourceLineNo">294</span> * @param tableName the table descriptor<a name="line.294"></a> -<span class="sourceLineNo">295</span> * @param startKey first key in region<a name="line.295"></a> -<span class="sourceLineNo">296</span> * @param endKey end of key range<a name="line.296"></a> -<span class="sourceLineNo">297</span> * @param split true if this region has split and we have daughter regions<a name="line.297"></a> -<span class="sourceLineNo">298</span> * regions that may or may not hold references to this region.<a name="line.298"></a> -<span class="sourceLineNo">299</span> * @param regionid Region id to use.<a name="line.299"></a> -<span class="sourceLineNo">300</span> * @param replicaId the replicaId to use<a name="line.300"></a> -<span class="sourceLineNo">301</span> * @throws IllegalArgumentException<a name="line.301"></a> -<span class="sourceLineNo">302</span> */<a name="line.302"></a> -<span class="sourceLineNo">303</span> public HRegionInfo(final TableName tableName, final byte[] startKey,<a name="line.303"></a> -<span class="sourceLineNo">304</span> final byte[] endKey, final boolean split, final long regionid,<a name="line.304"></a> -<span class="sourceLineNo">305</span> final int replicaId)<a name="line.305"></a> -<span class="sourceLineNo">306</span> throws IllegalArgumentException {<a name="line.306"></a> -<span class="sourceLineNo">307</span> super();<a name="line.307"></a> -<span class="sourceLineNo">308</span> if (tableName == null) {<a name="line.308"></a> -<span class="sourceLineNo">309</span> throw new IllegalArgumentException("TableName cannot be null");<a name="line.309"></a> -<span class="sourceLineNo">310</span> }<a name="line.310"></a> -<span class="sourceLineNo">311</span> this.tableName = tableName;<a name="line.311"></a> -<span class="sourceLineNo">312</span> this.offLine = false;<a name="line.312"></a> -<span class="sourceLineNo">313</span> this.regionId = regionid;<a name="line.313"></a> -<span class="sourceLineNo">314</span> this.replicaId = replicaId;<a name="line.314"></a> -<span class="sourceLineNo">315</span> if (this.replicaId > MAX_REPLICA_ID) {<a name="line.315"></a> -<span class="sourceLineNo">316</span> throw new IllegalArgumentException("ReplicaId cannot be greater than" + MAX_REPLICA_ID);<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> this.regionName = createRegionName(this.tableName, startKey, regionId, replicaId, true);<a name="line.319"></a> -<span class="sourceLineNo">320</span><a name="line.320"></a> -<span class="sourceLineNo">321</span> this.split = split;<a name="line.321"></a> -<span class="sourceLineNo">322</span> this.endKey = endKey == null? HConstants.EMPTY_END_ROW: endKey.clone();<a name="line.322"></a> -<span class="sourceLineNo">323</span> this.startKey = startKey == null?<a name="line.323"></a> -<span class="sourceLineNo">324</span> HConstants.EMPTY_START_ROW: startKey.clone();<a name="line.324"></a> -<span class="sourceLineNo">325</span> this.tableName = tableName;<a name="line.325"></a> -<span class="sourceLineNo">326</span> setHashCode();<a name="line.326"></a> -<span class="sourceLineNo">327</span> }<a name="line.327"></a> -<span class="sourceLineNo">328</span><a name="line.328"></a> -<span class="sourceLineNo">329</span> /**<a name="line.329"></a> -<span class="sourceLineNo">330</span> * Costruct a copy of another HRegionInfo<a name="line.330"></a> -<span class="sourceLineNo">331</span> *<a name="line.331"></a> -<span class="sourceLineNo">332</span> * @param other<a name="line.332"></a> -<span class="sourceLineNo">333</span> */<a name="line.333"></a> -<span class="sourceLineNo">334</span> public HRegionInfo(HRegionInfo other) {<a name="line.334"></a> -<span class="sourceLineNo">335</span> super();<a name="line.335"></a> -<span class="sourceLineNo">336</span> this.endKey = other.getEndKey();<a name="line.336"></a> -<span class="sourceLineNo">337</span> this.offLine = other.isOffline();<a name="line.337"></a> -<span class="sourceLineNo">338</span> this.regionId = other.getRegionId();<a name="line.338"></a> -<span class="sourceLineNo">339</span> this.regionName = other.getRegionName();<a name="line.339"></a> -<span class="sourceLineNo">340</span> this.split = other.isSplit();<a name="line.340"></a> -<span class="sourceLineNo">341</span> this.startKey = other.getStartKey();<a name="line.341"></a> -<span class="sourceLineNo">342</span> this.hashCode = other.hashCode();<a name="line.342"></a> -<span class="sourceLineNo">343</span> this.encodedName = other.getEncodedName();<a name="line.343"></a> -<span class="sourceLineNo">344</span> this.tableName = other.tableName;<a name="line.344"></a> -<span class="sourceLineNo">345</span> this.replicaId = other.replicaId;<a name="line.345"></a> -<span class="sourceLineNo">346</span> }<a name="line.346"></a> -<span class="sourceLineNo">347</span><a name="line.347"></a> -<span class="sourceLineNo">348</span> public HRegionInfo(HRegionInfo other, int replicaId) {<a name="line.348"></a> -<span class="sourceLineNo">349</span> this(other);<a name="line.349"></a> -<span class="sourceLineNo">350</span> this.replicaId = replicaId;<a name="line.350"></a> -<span class="sourceLineNo">351</span> this.setHashCode();<a name="line.351"></a> -<span class="sourceLineNo">352</span> }<a name="line.352"></a> -<span class="sourceLineNo">353</span><a name="line.353"></a> -<span class="sourceLineNo">354</span> /**<a name="line.354"></a> -<span class="sourceLineNo">355</span> * Make a region name of passed parameters.<a name="line.355"></a> -<span class="sourceLineNo">356</span> * @param tableName<a name="line.356"></a> -<span class="sourceLineNo">357</span> * @param startKey Can be null<a name="line.357"></a> -<span class="sourceLineNo">358</span> * @param regionid Region id (Usually timestamp from when region was created).<a name="line.358"></a> -<span class="sourceLineNo">359</span> * @param newFormat should we create the region name in the new format<a name="line.359"></a> -<span class="sourceLineNo">360</span> * (such that it contains its encoded name?).<a name="line.360"></a> -<span class="sourceLineNo">361</span> * @return Region name made of passed tableName, startKey and id<a name="line.361"></a> -<span class="sourceLineNo">362</span> */<a name="line.362"></a> -<span class="sourceLineNo">363</span> public static byte [] createRegionName(final TableName tableName,<a name="line.363"></a> -<span class="sourceLineNo">364</span> final byte [] startKey, final long regionid, boolean newFormat) {<a name="line.364"></a> -<span class="sourceLineNo">365</span> return createRegionName(tableName, startKey, Long.toString(regionid), newFormat);<a name="line.365"></a> -<span class="sourceLineNo">366</span> }<a name="line.366"></a> -<span class="sourceLineNo">367</span><a name="line.367"></a> -<span class="sourceLineNo">368</span> /**<a name="line.368"></a> -<span class="sourceLineNo">369</span> * Make a region name of passed parameters.<a name="line.369"></a> -<span class="sourceLineNo">370</span> * @param tableName<a name="line.370"></a> -<span class="sourceLineNo">371</span> * @param startKey Can be null<a name="line.371"></a> -<span class="sourceLineNo">372</span> * @param id Region id (Usually timestamp from when region was created).<a name="line.372"></a> -<span class="sourceLineNo">373</span> * @param newFormat should we create the region name in the new format<a name="line.373"></a> -<span class="sourceLineNo">374</span> * (such that it contains its encoded name?).<a name="line.374"></a> -<span class="sourceLineNo">375</span> * @return Region name made of passed tableName, startKey and id<a name="line.375"></a> -<span class="sourceLineNo">376</span> */<a name="line.376"></a> -<span class="sourceLineNo">377</span> public static byte [] createRegionName(final TableName tableName,<a name="line.377"></a> -<span class="sourceLineNo">378</span> final byte [] startKey, final String id, boolean newFormat) {<a name="line.378"></a> -<span class="sourceLineNo">379</span> return createRegionName(tableName, startKey, Bytes.toBytes(id), newFormat);<a name="line.379"></a> -<span class="sourceLineNo">380</span> }<a name="line.380"></a> -<span class="sourceLineNo">381</span><a name="line.381"></a> -<span class="sourceLineNo">382</span> /**<a name="line.382"></a> -<span class="sourceLineNo">383</span> * Make a region name of passed parameters.<a name="line.383"></a> -<span class="sourceLineNo">384</span> * @param tableName<a name="line.384"></a> -<span class="sourceLineNo">385</span> * @param startKey Can be null<a name="line.385"></a> -<span class="sourceLineNo">386</span> * @param regionid Region id (Usually timestamp from when region was created).<a name="line.386"></a> -<span class="sourceLineNo">387</span> * @param replicaId<a name="line.387"></a> -<span class="sourceLineNo">388</span> * @param newFormat should we create the region name in the new format<a name="line.388"></a> -<span class="sourceLineNo">389</span> * (such that it contains its encoded name?).<a name="line.389"></a> -<span class="sourceLineNo">390</span> * @return Region name made of passed tableName, startKey, id and replicaId<a name="line.390"></a> -<span class="sourceLineNo">391</span> */<a name="line.391"></a> -<span class="sourceLineNo">392</span> public static byte [] createRegionName(final TableName tableName,<a name="line.392"></a> -<span class="sourceLineNo">393</span> final byte [] startKey, final long regionid, int replicaId, boolean newFormat) {<a name="line.393"></a> -<span class="sourceLineNo">394</span> return createRegionName(tableName, startKey, Bytes.toBytes(Long.toString(regionid)),<a name="line.394"></a> -<span class="sourceLineNo">395</span> replicaId, newFormat);<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> /**<a name="line.398"></a> -<span class="sourceLineNo">399</span> * Make a region name of passed parameters.<a name="line.399"></a> -<span class="sourceLineNo">400</span> * @param tableName<a name="line.400"></a> -<span class="sourceLineNo">401</span> * @param startKey Can be null<a name="line.401"></a> -<span class="sourceLineNo">402</span> * @param id Region id (Usually timestamp from when region was created).<a name="line.402"></a> -<span class="sourceLineNo">403</span> * @param newFormat should we create the region name in the new format<a name="line.403"></a> -<span class="sourceLineNo">404</span> * (such that it contains its encoded name?).<a name="line.404"></a> -<span class="sourceLineNo">405</span> * @return Region name made of passed tableName, startKey and id<a name="line.405"></a> -<span class="sourceLineNo">406</span> */<a name="line.406"></a> -<span class="sourceLineNo">407</span> public static byte [] createRegionName(final TableName tableName,<a name="line.407"></a> -<span class="sourceLineNo">408</span> final byte [] startKey, final byte [] id, boolean newFormat) {<a name="line.408"></a> -<span class="sourceLineNo">409</span> return createRegionName(tableName, startKey, id, DEFAULT_REPLICA_ID, newFormat);<a name="line.409"></a> -<span class="sourceLineNo">410</span> }<a name="line.410"></a> -<span class="sourceLineNo">411</span> /**<a name="line.411"></a> -<span class="sourceLineNo">412</span> * Make a region name of passed parameters.<a name="line.412"></a> -<span class="sourceLineNo">413</span> * @param tableName<a name="line.413"></a> -<span class="sourceLineNo">414</span> * @param startKey Can be null<a name="line.414"></a> -<span class="sourceLineNo">415</span> * @param id Region id (Usually timestamp from when region was created).<a name="line.415"></a> -<span class="sourceLineNo">416</span> * @param replicaId<a name="line.416"></a> -<span class="sourceLineNo">417</span> * @param newFormat should we create the region name in the new format<a name="line.417"></a> -<span class="sourceLineNo">418</span> * @return Region name made of passed tableName, startKey, id and replicaId<a name="line.418"></a> -<span class="sourceLineNo">419</span> */<a name="line.419"></a> -<span class="sourceLineNo">420</span> public static byte [] createRegionName(final TableName tableName,<a name="line.420"></a> -<span class="sourceLineNo">421</span> final byte [] startKey, final byte [] id, final int replicaId, boolean newFormat) {<a name="line.421"></a> -<span class="sourceLineNo">422</span> int len = tableName.getName().length + 2 + id.length +<a name="line.422"></a> -<span class="sourceLineNo">423</span> (startKey == null? 0: startKey.length);<a name="line.423"></a> -<span class="sourceLineNo">424</span> if (newFormat) {<a name="line.424"></a> -<span class="sourceLineNo">425</span> len += MD5_HEX_LENGTH + 2;<a name="line.425"></a> -<span class="sourceLineNo">426</span> }<a name="line.426"></a> -<span class="sourceLineNo">427</span> byte[] replicaIdBytes = null;<a name="line.427"></a> -<span class="sourceLineNo">428</span> // Special casing: replicaId is only appended if replicaId is greater than<a name="line.428"></a> -<span class="sourceLineNo">429</span> // 0. This is because all regions in meta would have to be migrated to the new<a name="line.429"></a> -<span class="sourceLineNo">430</span> // name otherwise<a name="line.430"></a> -<span class="sourceLineNo">431</span> if (replicaId > 0) {<a name="line.431"></a> -<span class="sourceLineNo">432</span> // use string representation for replica id<a name="line.432"></a> -<span class="sourceLineNo">433</span> replicaIdBytes = Bytes.toBytes(String.format(REPLICA_ID_FORMAT, replicaId));<a name="line.433"></a> -<span class="sourceLineNo">434</span> len += 1 + replicaIdBytes.length;<a name="line.434"></a> -<span class="sourceLineNo">435</span> }<a name="line.435"></a> -<span class="sourceLineNo">436</span><a name="line.436"></a> -<span class="sourceLineNo">437</span> byte [] b = new byte [len];<a name="line.437"></a> -<span class="sourceLineNo">438</span><a name="line.438"></a> -<span class="sourceLineNo">439</span> int offset = tableName.getName().length;<a name="line.439"></a> -<span class="sourceLineNo">440</span> System.arraycopy(tableName.getName(), 0, b, 0, offset);<a name="line.440"></a> -<span class="sourceLineNo">441</span> b[offset++] = HConstants.DELIMITER;<a name="line.441"></a> -<span class="sourceLineNo">442</span> if (startKey != null && startKey.length > 0) {<a name="line.442"></a> -<span class="sourceLineNo">443</span> System.arraycopy(startKey, 0, b, offset, startKey.length);<a name="line.443"></a> -<span class="sourceLineNo">444</span> offset += startKey.length;<a name="line.444"></a> -<span class="sourceLineNo">445</span> }<a name="line.445"></a> -<span class="sourceLineNo">446</span> b[offset++] = HConstants.DELIMITER;<a name="line.446"></a> -<span class="sourceLineNo">447</span> System.arraycopy(id, 0, b, offset, id.length);<a name="line.447"></a> -<span class="sourceLineNo">448</span> offset += id.length;<a name="line.448"></a> -<span class="sourceLineNo">449</span><a name="line.449"></a> -<span class="sourceLineNo">450</span> if (replicaIdBytes != null) {<a name="line.450"></a> -<span class="sourceLineNo">451</span> b[offset++] = REPLICA_ID_DELIMITER;<a name="line.451"></a> -<span class="sourceLineNo">452</span> System.arraycopy(replicaIdBytes, 0, b, offset, replicaIdBytes.length);<a name="line.452"></a> -<span class="sourceLineNo">453</span> offset += replicaIdBytes.length;<a name="line.453"></a> -<span class="sourceLineNo">454</span> }<a name="line.454"></a> -<span class="sourceLineNo">455</span><a name="line.455"></a> -<span class="sourceLineNo">456</span> if (newFormat) {<a name="line.456"></a> -<span class="sourceLineNo">457</span> //<a name="line.457"></a> -<span class="sourceLineNo">458</span> // Encoded name should be built into the region name.<a name="line.458"></a> -<span class="sourceLineNo">459</span> //<a name="line.459"></a> -<span class="sourceLineNo">460</span> // Use the region name thus far (namely, <tablename>,<startKey>,<id>_<replicaId>)<a name="line.460"></a> -<span class="sourceLineNo">461</span> // to compute a MD5 hash to be used as the encoded name, and append<a name="line.461"></a> -<span class="sourceLineNo">462</span> // it to the byte buffer.<a name="line.462"></a> -<span class="sourceLineNo">463</span> //<a name="line.463"></a> -<span class="sourceLineNo">464</span> String md5Hash = MD5Hash.getMD5AsHex(b, 0, offset);<a name="line.464"></a> -<span class="sourceLineNo">465</span> byte [] md5HashBytes = Bytes.toBytes(md5Hash);<a name="line.465"></a> -<span class="sourceLineNo">466</span><a name="line.466"></a> -<span class="sourceLineNo">467</span> if (md5HashBytes.length != MD5_HEX_LENGTH) {<a name="line.467"></a> -<span class="sourceLineNo">468</span> LOG.error("MD5-hash length mismatch: Expected=" + MD5_HEX_LENGTH +<a name="line.468"></a> -<span class="sourceLineNo">469</span> "; Got=" + md5HashBytes.length);<a name="line.469"></a> -<span class="sourceLineNo">470</span> }<a name="line.470"></a> -<span class="sourceLineNo">471</span><a name="line.471"></a> -<span class="sourceLineNo">472</span> // now append the bytes '.<encodedName>.' to the end<a name="line.472"></a> -<span class="sourceLineNo">473</span> b[offset++] = ENC_SEPARATOR;<a name="line.473"></a> -<span class="sourceLineNo">474</span> System.arraycopy(md5HashBytes, 0, b, offset, MD5_HEX_LENGTH);<a name="line.474"></a> -<span class="sourceLineNo">475</span> offset += MD5_HEX_LENGTH;<a name="line.475"></a> -<span class="sourceLineNo">476</span> b[offset++] = ENC_SEPARATOR;<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> return b;<a name="line.479"></a> -<span class="sourceLineNo">480</span> }<a name="line.480"></a> -<span class="sourceLineNo">481</span><a name="line.481"></a> -<span class="sourceLineNo">482</span> /**<a name="line.482"></a> -<span class="sourceLineNo">483</span> * Gets the table name from the specified region name.<a name="line.483"></a> -<span class="sourceLineNo">484</span> * @param regionName to extract the table name from<a name="line.484"></a> -<span class="sourceLineNo">485</span> * @return Table name<a name="line.485"></a> -<span class="sourceLineNo">486</span> */<a name="line.486"></a> -<span class="sourceLineNo">487</span> public static TableName getTable(final byte [] regionName) {<a name="line.487"></a> -<span class="sourceLineNo">488</span> int offset = -1;<a name="line.488"></a> -<span class="sourceLineNo">489</span> for (int i = 0; i < regionName.length; i++) {<a name="line.489"></a> -<span class="sourceLineNo">490</span> if (regionName[i] == HConstants.DELIMITER) {<a name="line.490"></a> -<span class="sourceLineNo">491</span> offset = i;<a name="line.491"></a> -<span class="sourceLineNo">492</span> break;<a name="line.492"></a> -<span class="sourceLineNo">493</span> }<a name="line.493"></a> -<span class="sourceLineNo">494</span> }<a name="line.494"></a> -<span 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class="sourceLineNo">506</span> return parseRegionName(regionName)[1];<a name="line.506"></a> -<span class="sourceLineNo">507</span> }<a name="line.507"></a> -<span class="sourceLineNo">508</span><a name="line.508"></a> -<span class="sourceLineNo">509</span> /**<a name="line.509"></a> -<span class="sourceLineNo">510</span> * Separate elements of a regionName.<a name="line.510"></a> -<span class="sourceLineNo">511</span> * @param regionName<a name="line.511"></a> -<span class="sourceLineNo">512</span> * @return Array of byte[] containing tableName, startKey and id<a name="line.512"></a> -<span class="sourceLineNo">513</span> * @throws IOException<a name="line.513"></a> -<span class="sourceLineNo">514</span> */<a name="line.514"></a> -<span class="sourceLineNo">515</span> public static byte [][] parseRegionName(final byte [] regionName)<a name="line.515"></a> -<span class="sourceLineNo">516</span> throws IOException {<a name="line.516"></a> -<span class="sourceLineNo">517</span> // Region name is of the format:<a name="line.517"></a> -<span class="sourceLineNo">518</span> // tablename,startkey,regionIdTimestamp[_replicaId][.encodedName.]<a name="line.518"></a> -<span class="sourceLineNo">519</span> // startkey can contain the delimiter (',') so we parse from the start and end<a name="line.519"></a> -<span class="sourceLineNo">520</span><a name="line.520"></a> -<span class="sourceLineNo">521</span> // parse from start<a name="line.521"></a> -<span class="sourceLineNo">522</span> int offset = -1;<a name="line.522"></a> -<span class="sourceLineNo">523</span> for (int i = 0; i < regionName.length; i++) {<a name="line.523"></a> -<span class="sourceLineNo">524</span> if (regionName[i] == HConstants.DELIMITER) {<a name="line.524"></a> -<span class="sourceLineNo">525</span> offset = i;<a name="line.525"></a> -<span class="sourceLineNo">526</span> break;<a name="line.526"></a> -<span class="sourceLineNo">527</span> }<a name="line.527"></a> -<span class="sourceLineNo">528</span> }<a name="line.528"></a> -<span class="sourceLineNo">529</span> if (offset == -1) {<a name="line.529"></a> -<span class="sourceLineNo">530</span> throw new IOException(INVALID_REGION_NAME_FORMAT_MESSAGE<a name="line.530"></a> -<span class="sourceLineNo">531</span> + ": " + Bytes.toStringBinary(regionName));<a name="line.531"></a> -<span class="sourceLineNo">532</span> }<a name="line.532"></a> -<span class="sourceLineNo">533</span> byte[] tableName = new byte[offset];<a name="line.533"></a> -<span class="sourceLineNo">534</span> System.arraycopy(regionName, 0, tableName, 0, offset);<a name="line.534"></a> -<span class="sourceLineNo">535</span> offset = -1;<a name="line.535"></a> -<span class="sourceLineNo">536</span><a name="line.536"></a> -<span class="sourceLineNo">537</span> int endOffset = regionName.length;<a name="line.537"></a> -<span class="sourceLineNo">538</span> // check whether regionName contains encodedName<a name="line.538"></a> -<span class="sourceLineNo">539</span> if (regionName.length > MD5_HEX_LENGTH + 2<a name="line.539"></a> -<span class="sourceLineNo">540</span> && regionName[regionName.length-1] == ENC_SEPARATOR<a name="line.540"></a> -<span class="sourceLineNo">541</span> && regionName[regionName.length-MD5_HEX_LENGTH-2] == ENC_SEPARATOR) {<a name="line.541"></a> -<span class="sourceLineNo">542</span> endOffset = endOffset - MD5_HEX_LENGTH - 2;<a name="line.542"></a> -<span class="sourceLineNo">543</span> }<a name="line.543"></a> -<span class="sourceLineNo">544</span><a name="line.544"></a> -<span class="sourceLineNo">545</span> // parse from end<a name="line.545"></a> -<span class="sourceLineNo">546</span> byte[] replicaId = null;<a name="line.546"></a> -<span class="sourceLineNo">547</span> int idEndOffset = endOffset;<a name="line.547"></a> -<span class="sourceLineNo">548</span> for (int i = endOffset - 1; i > 0; i--) {<a name="line.548"></a> -<span class="sourceLineNo">549</span> if (regionName[i] == REPLICA_ID_DELIMITER) { //replicaId may or may not be present<a name="line.549"></a> -<span class="sourceLineNo">550</span> replicaId = new byte[endOffset - i - 1];<a name="line.550"></a> -<span class="sourceLineNo">551</span> System.arraycopy(regionName, i + 1, replicaId, 0,<a name="line.551"></a> -<span class="sourceLineNo">552</span> endOffset - i - 1);<a name="line.552"></a> -<span class="sourceLineNo">553</span> idEndOffset = i;<a name="line.553"></a> -<span class="sourceLineNo">554</span> // do not break, continue to search for id<a name="line.554"></a> -<span class="sourceLineNo">555</span> }<a name="line.555"></a> -<span class="sourceLineNo">556</span> if (regionName[i] == HConstants.DELIMITER) {<a name="line.556"></a> -<span class="sourceLineNo">557</span> offset = i;<a name="line.557"></a> -<span class="sourceLineNo">558</span> break;<a name="line.558"></a> -<span class="sourceLineNo">559</span> }<a name="line.559"></a> -<span class="sourceLineNo">560</span> }<a name="line.560"></a> -<span class="sourceLineNo">561</span> if (offset == -1) {<a name="line.561"></a> -<span class="sourceLineNo">562</span> throw new IOException(INVALID_REGION_NAME_FORMAT_MESSAGE<a name="line.562"></a> -<span class="sourceLineNo">563</span> + ": " + Bytes.toStringBinary(regionName));<a name="line.563"></a> -<span class="sourceLineNo">564</span> }<a name="line.564"></a> -<span class="sourceLineNo">565</span> byte [] startKey = HConstants.EMPTY_BYTE_ARRAY;<a name="line.565"></a> -<span class="sourceLineNo">566</span> if(offset != tableName.length + 1) {<a name="line.566"></a> -<span class="sourceLineNo">567</span> startKey = new byte[offset - tableName.length - 1];<a name="line.567"></a> -<span class="sourceLineNo">568</span> System.arraycopy(regionName, tableName.length + 1, startKey, 0,<a name="line.568"></a> -<span class="sourceLineNo">569</span> offset - tableName.length - 1);<a name="line.569"></a> -<span class="sourceLineNo">570</span> }<a name="line.570"></a> -<span class="sourceLineNo">571</span> byte [] id = new byte[idEndOffset - offset - 1];<a name="line.571"></a> -<span class="sourceLineNo">572</span> System.arraycopy(regionName, offset + 1, id, 0,<a name="line.572"></a> -<span class="sourceLineNo">573</span> idEndOffset - offset - 1);<a name="line.573"></a> -<span class="sourceLineNo">574</span> byte [][] elements = new byte[replicaId == null ? 3 : 4][];<a name="line.574"></a> -<span class="sourceLineNo">575</span> elements[0] = tableName;<a name="line.575"></a> -<span class="sourceLineNo">576</span> elements[1] = startKey;<a name="line.576"></a> -<span class="sourceLineNo">577</span> elements[2] = id;<a name="line.577"></a> -<span class="sourceLineNo">578</span> if (replicaId != null) {<a name="line.578"></a> -<span class="sourceLineNo">579</span> elements[3] = replicaId;<a name="line.579"></a> -<span class="sourceLineNo">580</span> }<a name="line.580"></a> -<span class="sourceLineNo">581</span><a name="line.581"></a> -<span class="sourceLineNo">582</span> return elements;<a name="line.582"></a> -<span class="sourceLineNo">583</span> }<a name="line.583"></a> -<span class="sourceLineNo">584</span><a name="line.584"></a> -<span class="sourceLineNo">585</span> /** @return the regionId */<a name="line.585"></a> -<span class="sourceLineNo">586</span> public long getRegionId(){<a name="line.586"></a> -<span class="sourceLineNo">587</span> return regionId;<a name="line.587"></a> -<span class="sourceLineNo">588</span> }<a name="line.588"></a> -<span class="sourceLineNo">589</span><a name="line.589"></a> -<span class="sourceLineNo">590</span> /**<a name="line.590"></a> -<span class="sourceLineNo">591</span> * @return the regionName as an array of bytes.<a name="line.591"></a> -<span class="sourceLineNo">592</span> * @see #getRegionNameAsString()<a name="line.592"></a> -<span class="sourceLineNo">593</span> */<a name="line.593"></a> -<span class="sourceLineNo">594</span> public byte [] getRegionName(){<a name="line.594"></a> -<span class="sourceLineNo">595</span> return regionName;<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> * @return Region name as a String for use in logging, etc.<a name="line.599"></a> -<span class="sourceLineNo">600</span> */<a name="line.600"></a> -<span class="sourceLineNo">601</span> public String getRegionNameAsString() {<a name="line.601"></a> -<span class="sourceLineNo">602</span> if (hasEncodedName(this.regionName)) {<a name="line.602"></a> -<span class="sourceLineNo">603</span> // new format region names already have their encoded name.<a name="line.603"></a> -<span class="sourceLineNo">604</span> return Bytes.toStringBinary(this.regionName);<a name="line.604"></a> -<span class="sourceLineNo">605</span> }<a name="line.605"></a> -<span class="sourceLineNo">606</span><a name="line.606"></a> -<span class="sourceLineNo">607</span> // old format. regionNameStr doesn't have the region name.<a name="line.607"></a> -<span class="sourceLineNo">608</span> //<a name="line.608"></a> -<span class="sourceLineNo">609</span> //<a name="line.609"></a> -<span class="sourceLineNo">610</span> return Bytes.toStringBinary(this.regionName) + "." + this.getEncodedName();<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> /** @return the encoded region name */<a name="line.613"></a> -<span class="sourceLineNo">614</span> public synchronized String getEncodedName() {<a name="line.614"></a> -<span class="sourceLineNo">615</span> if (this.encodedName == null) {<a name="line.615"></a> -<span class="sourceLineNo">616</span> this.encodedName = encodeRegionName(this.regionName);<a name="line.616"></a> -<span class="sourceLineNo">617</span> }<a name="line.617"></a> -<span class="sourceLineNo">618</span> return this.encodedName;<a name="line.618"></a> -<span class="sourceLineNo">619</span> }<a name="line.619"></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> * Private constructor used constructing HRegionInfo for the<a name="line.225"></a> +<span class="sourceLineNo">226</span> * first meta regions<a name="line.226"></a> +<span class="sourceLineNo">227</span> */<a name="line.227"></a> +<span class="sourceLineNo">228</span> private HRegionInfo(long regionId, TableName tableName) {<a name="line.228"></a> +<span class="sourceLineNo">229</span> this(regionId, tableName, DEFAULT_REPLICA_ID);<a name="line.229"></a> +<span class="sourceLineNo">230</span> }<a name="line.230"></a> +<span class="sourceLineNo">231</span><a name="line.231"></a> +<span class="sourceLineNo">232</span> public HRegionInfo(long regionId, TableName tableName, int replicaId) {<a name="line.232"></a> +<span class="sourceLineNo">233</span> super();<a name="line.233"></a> +<span class="sourceLineNo">234</span> this.regionId = regionId;<a name="line.234"></a> +<span class="sourceLineNo">235</span> this.tableName = tableName;<a name="line.235"></a> +<span class="sourceLineNo">236</span> this.replicaId = replicaId;<a name="line.236"></a> +<span class="sourceLineNo">237</span> // Note: First Meta region replicas names are in old format<a name="line.237"></a> +<span class="sourceLineNo">238</span> this.regionName = createRegionName(tableName, null, regionId, replicaId, false);<a name="line.238"></a> +<span class="sourceLineNo">239</span> setHashCode();<a name="line.239"></a> +<span class="sourceLineNo">240</span> }<a name="line.240"></a> +<span class="sourceLineNo">241</span><a name="line.241"></a> +<span class="sourceLineNo">242</span> public HRegionInfo(final TableName tableName) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> this(tableName, null, null);<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> +<span class="sourceLineNo">245</span><a name="line.245"></a> +<span class="sourceLineNo">246</span> /**<a name="line.246"></a> +<span class="sourceLineNo">247</span> * Construct HRegionInfo with explicit parameters<a name="line.247"></a> +<span class="sourceLineNo">248</span> *<a name="line.248"></a> +<span class="sourceLineNo">249</span> * @param tableName the table name<a name="line.249"></a> +<span class="sourceLineNo">250</span> * @param startKey first key in region<a name="line.250"></a> +<span class="sourceLineNo">251</span> * @param endKey end of key range<a name="line.251"></a> +<span class="sourceLineNo">252</span> * @throws IllegalArgumentException<a name="line.252"></a> +<span class="sourceLineNo">253</span> */<a name="line.253"></a> +<span class="sourceLineNo">254</span> public HRegionInfo(final TableName tableName, final byte[] startKey, final byte[] endKey)<a name="line.254"></a> +<span class="sourceLineNo">255</span> throws IllegalArgumentException {<a name="line.255"></a> +<span class="sourceLineNo">256</span> this(tableName, startKey, endKey, false);<a name="line.256"></a> +<span class="sourceLineNo">257</span> }<a name="line.257"></a> +<span class="sourceLineNo">258</span><a name="line.258"></a> +<span class="sourceLineNo">259</span> /**<a name="line.259"></a> +<span class="sourceLineNo">260</span> * Construct HRegionInfo with explicit parameters<a name="line.260"></a> +<span class="sourceLineNo">261</span> *<a name="line.261"></a> +<span class="sourceLineNo">262</span> * @param tableName the table descriptor<a name="line.262"></a> +<span class="sourceLineNo">263</span> * @param startKey first key in region<a name="line.263"></a> +<span class="sourceLineNo">264</span> * @param endKey end of key range<a name="line.264"></a> +<span class="sourceLineNo">265</span> * @param split true if this region has split and we have daughter regions<a name="line.265"></a> +<span class="sourceLineNo">266</span> * regions that may or may not hold references to this region.<a name="line.266"></a> +<span class="sourceLineNo">267</span> * @throws IllegalArgumentException<a name="line.267"></a> +<span class="sourceLineNo">268</span> */<a name="line.268"></a> +<span class="sourceLineNo">269</span> public HRegionInfo(final TableName tableName, final byte[] startKey, final byte[] endKey,<a name="line.269"></a> +<span class="sourceLineNo">270</span> final boolean split)<a name="line.270"></a> +<span class="sourceLineNo">271</span> throws IllegalArgumentException {<a name="line.271"></a> +<span class="sourceLineNo">272</span> this(tableName, startKey, endKey, split, System.currentTimeMillis());<a name="line.272"></a> +<span class="sourceLineNo">273</span> }<a name="line.273"></a> +<span class="sourceLineNo">274</span><a name="line.274"></a> +<span class="sourceLineNo">275</span> /**<a name="line.275"></a> +<span class="sourceLineNo">276</span> * Construct HRegionInfo with explicit parameters<a name="line.276"></a> +<span class="sourceLineNo">277</span> *<a name="line.277"></a> +<span class="sourceLineNo">278</span> * @param tableName the table descriptor<a name="line.278"></a> +<span class="sourceLineNo">279</span> * @param startKey first key in region<a name="line.279"></a> +<span class="sourceLineNo">280</span> * @param endKey end of key range<a name="line.280"></a> +<span class="sourceLineNo">281</span> * @param split true if this region has split and we have daughter regions<a name="line.281"></a> +<span class="sourceLineNo">282</span> * regions that may or may not hold references to this region.<a name="line.282"></a> +<span class="sourceLineNo">283</span> * @param regionid Region id to use.<a name="line.283"></a> +<span class="sourceLineNo">284</span> * @throws IllegalArgumentException<a name="line.284"></a> +<span class="sourceLineNo">285</span> */<a name="line.285"></a> +<span class="sourceLineNo">286</span> public HRegionInfo(final TableName tableName, final byte[] startKey,<a name="line.286"></a> +<span class="sourceLineNo">287</span> final byte[] endKey, final boolean split, final long regionid)<a name="line.287"></a> +<span class="sourceLineNo">288</span> throws IllegalArgumentException {<a name="line.288"></a> +<span class="sourceLineNo">289</span> this(tableName, startKey, endKey, split, regionid, DEFAULT_REPLICA_ID);<a name="line.289"></a> +<span class="sourceLineNo">290</span> }<a name="line.290"></a> +<span class="sourceLineNo">291</span><a name="line.291"></a> +<span class="sourceLineNo">292</span> /**<a name="line.292"></a> +<span class="sourceLineNo">293</span> * Construct HRegionInfo with explicit parameters<a name="line.293"></a> +<span class="sourceLineNo">294</span> *<a name="line.294"></a> +<span class="sourceLineNo">295</span> * @param tableName the table descriptor<a name="line.295"></a> +<span class="sourceLineNo">296</span> * @param startKey first key in region<a name="line.296"></a> +<span class="sourceLineNo">297</span> * @param endKey end of key range<a name="line.297"></a> +<span class="sourceLineNo">298</span> * @param split true if this region has split and we have daughter regions<a name="line.298"></a> +<span class="sourceLineNo">299</span> * regions that may or may not hold references to this region.<a name="line.299"></a> +<span class="sourceLineNo">300</span> * @param regionid Region id to use.<a name="line.300"></a> +<span class="sourceLineNo">301</span> * @param replicaId the replicaId to use<a name="line.301"></a> +<span class="sourceLineNo">302</span> * @throws IllegalArgumentException<a name="line.302"></a> +<span class="sourceLineNo">303</span> */<a name="line.303"></a> +<span class="sourceLineNo">304</span> public HRegionInfo(final TableName tableName, final byte[] startKey,<a name="line.304"></a> +<span class="sourceLineNo">305</span> final byte[] endKey, final boolean split, final long regionid,<a name="line.305"></a> +<span class="sourceLineNo">306</span> final int replicaId)<a name="line.306"></a> +<span class="sourceLineNo">307</span> throws IllegalArgumentException {<a name="line.307"></a> +<span class="sourceLineNo">308</span> super();<a name="line.308"></a> +<span class="sourceLineNo">309</span> if (tableName == null) {<a name="line.309"></a> +<span class="sourceLineNo">310</span> throw new IllegalArgumentException("TableName cannot be null");<a name="line.310"></a> +<span class="sourceLineNo">311</span> }<a name="line.311"></a> +<span class="sourceLineNo">312</span> this.tableName = tableName;<a name="line.312"></a> +<span class="sourceLineNo">313</span> this.offLine = false;<a name="line.313"></a> +<span class="sourceLineNo">314</span> this.regionId = regionid;<a name="line.314"></a> +<span class="sourceLineNo">315</span> this.replicaId = replicaId;<a name="line.315"></a> +<span class="sourceLineNo">316</span> if (this.replicaId > MAX_REPLICA_ID) {<a name="line.316"></a> +<span class="sourceLineNo">317</span> throw new IllegalArgumentException("ReplicaId cannot be greater than" + MAX_REPLICA_ID);<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> this.regionName = createRegionName(this.tableName, startKey, regionId, replicaId, true);<a name="line.320"></a> +<span class="sourceLineNo">321</span><a name="line.321"></a> +<span class="sourceLineNo">322</span> this.split = split;<a name="line.322"></a> +<span class="sourceLineNo">323</span> this.endKey = endKey == null? HConstants.EMPTY_END_ROW: endKey.clone();<a name="line.323"></a> +<span class="sourceLineNo">324</span> this.startKey = startKey == null?<a name="line.324"></a> +<span class="sourceLineNo">325</span> HConstants.EMPTY_START_ROW: startKey.clone();<a name="line.325"></a> +<span class="sourceLineNo">326</span> this.tableName = tableName;<a name="line.326"></a> +<span class="sourceLineNo">327</span> setHashCode();<a name="line.327"></a> +<span class="sourceLineNo">328</span> }<a name="line.328"></a> +<span class="sourceLineNo">329</span><a name="line.329"></a> +<span class="sourceLineNo">330</span> /**<a name="line.330"></a> +<span class="sourceLineNo">331</span> * Costruct a copy of another HRegionInfo<a name="line.331"></a> +<span class="sourceLineNo">332</span> *<a name="line.332"></a> +<span class="sourceLineNo">333</span> * @param other<a name="line.333"></a> +<span class="sourceLineNo">334</span> */<a name="line.334"></a> +<span class="sourceLineNo">335</span> public HRegionInfo(HRegionInfo other) {<a name="line.335"></a> +<span class="sourceLineNo">336</span> super();<a name="line.336"></a> +<span class="sourceLineNo">337</span> this.endKey = other.getEndKey();<a name="line.337"></a> +<span class="sourceLineNo">338</span> this.offLine = other.isOffline();<a name="line.338"></a> +<span class="sourceLineNo">339</span> this.regionId = other.getRegionId();<a name="line.339"></a> +<span class="sourceLineNo">340</span> this.regionName = other.getRegionName();<a name="line.340"></a> +<span class="sourceLineNo">341</span> this.split = other.isSplit();<a name="line.341"></a> +<span class="sourceLineNo">342</span> this.startKey = other.getStartKey();<a name="line.342"></a> +<span class="sourceLineNo">343</span> this.hashCode = other.hashCode();<a name="line.343"></a> +<span class="sourceLineNo">344</span> this.encodedName = other.getEncodedName();<a name="line.344"></a> +<span class="sourceLineNo">345</span> this.tableName = other.tableName;<a name="line.345"></a> +<span class="sourceLineNo">346</span> this.replicaId = other.replicaId;<a name="line.346"></a> +<span class="sourceLineNo">347</span> }<a name="line.347"></a> +<span class="sourceLineNo">348</span><a name="line.348"></a> +<span class="sourceLineNo">349</span> public HRegionInfo(HRegionInfo other, int replicaId) {<a name="line.349"></a> +<span class="sourceLineNo">350</span> this(other);<a name="line.350"></a> +<span class="sourceLineNo">351</span> this.replicaId = replicaId;<a name="line.351"></a> +<span class="sourceLineNo">352</span> this.setHashCode();<a name="line.352"></a> +<span class="sourceLineNo">353</span> }<a name="line.353"></a> +<span class="sourceLineNo">354</span><a name="line.354"></a> +<span class="sourceLineNo">355</span> /**<a name="line.355"></a> +<span class="sourceLineNo">356</span> * Make a region name of passed parameters.<a name="line.356"></a> +<span class="sourceLineNo">357</span> * @param tableName<a name="line.357"></a> +<span class="sourceLineNo">358</span> * @param startKey Can be null<a name="line.358"></a> +<span class="sourceLineNo">359</span> * @param regionid Region id (Usually timestamp from when region was created).<a name="line.359"></a> +<span class="sourceLineNo">360</span> * @param newFormat should we create the region name in the new format<a name="line.360"></a> +<span class="sourceLineNo">361</span> * (such that it contains its encoded name?).<a name="line.361"></a> +<span class="sourceLineNo">362</span> * @return Region name made of passed tableName, startKey and id<a name="line.362"></a> +<span class="sourceLineNo">363</span> */<a name="line.363"></a> +<span class="sourceLineNo">364</span> public static byte [] createRegionName(final TableName tableName,<a name="line.364"></a> +<span class="sourceLineNo">365</span> final byte [] startKey, final long regionid, boolean newFormat) {<a name="line.365"></a> +<span class="sourceLineNo">366</span> return createRegionName(tableName, startKey, Long.toString(regionid), newFormat);<a name="line.366"></a> +<span class="sourceLineNo">367</span> }<a name="line.367"></a> +<span class="sourceLineNo">368</span><a name="line.368"></a> +<span class="sourceLineNo">369</span> /**<a name="line.369"></a> +<span class="sourceLineNo">370</span> * Make a region name of passed parameters.<a name="line.370"></a> +<span class="sourceLineNo">371</span> * @param tableName<a name="line.371"></a> +<span
<TRUNCATED>
