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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.io.Serializable;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.Locale;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.regex.Pattern;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.net.Address;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.util.Addressing;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hbase.thirdparty.com.google.common.collect.Interner;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hbase.thirdparty.com.google.common.collect.Interners;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.com.google.common.net.InetAddresses;<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>/**<a name="line.33"></a>
<span class="sourceLineNo">034</span> * Name of a particular incarnation of an HBase Server.<a name="line.34"></a>
<span class="sourceLineNo">035</span> * A {@link ServerName} is used uniquely identifying a server instance in a cluster and is made<a name="line.35"></a>
<span class="sourceLineNo">036</span> * of the combination of hostname, port, and startcode. The startcode distinguishes restarted<a name="line.36"></a>
<span class="sourceLineNo">037</span> * servers on same hostname and port (startcode is usually timestamp of server startup). The<a name="line.37"></a>
<span class="sourceLineNo">038</span> * {@link #toString()} format of ServerName is safe to use in the filesystem and as znode name<a name="line.38"></a>
<span class="sourceLineNo">039</span> * up in ZooKeeper. Its format is:<a name="line.39"></a>
<span class="sourceLineNo">040</span> * &lt;code&gt;&amp;lt;hostname&amp;gt; '{@link #SERVERNAME_SEPARATOR}' &amp;lt;port&amp;gt;<a name="line.40"></a>
<span class="sourceLineNo">041</span> * '{@link #SERVERNAME_SEPARATOR}' &amp;lt;startcode&amp;gt;&lt;/code&gt;.<a name="line.41"></a>
<span class="sourceLineNo">042</span> * For example, if hostname is &lt;code&gt;www.example.org&lt;/code&gt;, port is &lt;code&gt;1234&lt;/code&gt;,<a name="line.42"></a>
<span class="sourceLineNo">043</span> * and the startcode for the regionserver is &lt;code&gt;1212121212&lt;/code&gt;, then<a name="line.43"></a>
<span class="sourceLineNo">044</span> * the {@link #toString()} would be &lt;code&gt;www.example.org,1234,1212121212&lt;/code&gt;.<a name="line.44"></a>
<span class="sourceLineNo">045</span> *<a name="line.45"></a>
<span class="sourceLineNo">046</span> * &lt;p&gt;You can obtain a versioned serialized form of this class by calling<a name="line.46"></a>
<span class="sourceLineNo">047</span> * {@link #getVersionedBytes()}. To deserialize, call<a name="line.47"></a>
<span class="sourceLineNo">048</span> * {@link #parseVersionedServerName(byte[])}.<a name="line.48"></a>
<span class="sourceLineNo">049</span> *<a name="line.49"></a>
<span class="sourceLineNo">050</span> * &lt;p&gt;Use {@link #getAddress()} to obtain the Server hostname + port<a name="line.50"></a>
<span class="sourceLineNo">051</span> * (Endpoint/Socket Address).<a name="line.51"></a>
<span class="sourceLineNo">052</span> *<a name="line.52"></a>
<span class="sourceLineNo">053</span> * &lt;p&gt;Immutable.<a name="line.53"></a>
<span class="sourceLineNo">054</span> */<a name="line.54"></a>
<span class="sourceLineNo">055</span>@InterfaceAudience.Public<a name="line.55"></a>
<span class="sourceLineNo">056</span>public class ServerName implements Comparable&lt;ServerName&gt;, Serializable {<a name="line.56"></a>
<span class="sourceLineNo">057</span> private static final long serialVersionUID = 1367463982557264981L;<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span> /**<a name="line.59"></a>
<span class="sourceLineNo">060</span> * Version for this class.<a name="line.60"></a>
<span class="sourceLineNo">061</span> * Its a short rather than a byte so I can for sure distinguish between this<a name="line.61"></a>
<span class="sourceLineNo">062</span> * version of this class and the version previous to this which did not have<a name="line.62"></a>
<span class="sourceLineNo">063</span> * a version.<a name="line.63"></a>
<span class="sourceLineNo">064</span> */<a name="line.64"></a>
<span class="sourceLineNo">065</span> private static final short VERSION = 0;<a name="line.65"></a>
<span class="sourceLineNo">066</span> static final byte [] VERSION_BYTES = Bytes.toBytes(VERSION);<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span> /**<a name="line.68"></a>
<span class="sourceLineNo">069</span> * What to use if no startcode supplied.<a name="line.69"></a>
<span class="sourceLineNo">070</span> */<a name="line.70"></a>
<span class="sourceLineNo">071</span> public static final int NON_STARTCODE = -1;<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span> /**<a name="line.73"></a>
<span class="sourceLineNo">074</span> * This character is used as separator between server hostname, port and<a name="line.74"></a>
<span class="sourceLineNo">075</span> * startcode.<a name="line.75"></a>
<span class="sourceLineNo">076</span> */<a name="line.76"></a>
<span class="sourceLineNo">077</span> public static final String SERVERNAME_SEPARATOR = ",";<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span> public static final Pattern SERVERNAME_PATTERN =<a name="line.79"></a>
<span class="sourceLineNo">080</span> Pattern.compile("[^" + SERVERNAME_SEPARATOR + "]+" +<a name="line.80"></a>
<span class="sourceLineNo">081</span> SERVERNAME_SEPARATOR + Addressing.VALID_PORT_REGEX +<a name="line.81"></a>
<span class="sourceLineNo">082</span> SERVERNAME_SEPARATOR + Addressing.VALID_PORT_REGEX + "$");<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> * What to use if server name is unknown.<a name="line.85"></a>
<span class="sourceLineNo">086</span> */<a name="line.86"></a>
<span class="sourceLineNo">087</span> public static final String UNKNOWN_SERVERNAME = "#unknown#";<a name="line.87"></a>
<span class="sourceLineNo">088</span><a name="line.88"></a>
<span class="sourceLineNo">089</span> private final String servername;<a name="line.89"></a>
<span class="sourceLineNo">090</span> private final long startcode;<a name="line.90"></a>
<span class="sourceLineNo">091</span> private transient Address address;<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span> /**<a name="line.93"></a>
<span class="sourceLineNo">094</span> * Cached versioned bytes of this ServerName instance.<a name="line.94"></a>
<span class="sourceLineNo">095</span> * @see #getVersionedBytes()<a name="line.95"></a>
<span class="sourceLineNo">096</span> */<a name="line.96"></a>
<span class="sourceLineNo">097</span> private byte [] bytes;<a name="line.97"></a>
<span class="sourceLineNo">098</span> public static final List&lt;ServerName&gt; EMPTY_SERVER_LIST = new ArrayList&lt;&gt;(0);<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> /**<a name="line.100"></a>
<span class="sourceLineNo">101</span> * Intern ServerNames. The Set of ServerNames is mostly-fixed changing slowly as Servers<a name="line.101"></a>
<span class="sourceLineNo">102</span> * restart. Rather than create a new instance everytime, try and return existing instance<a name="line.102"></a>
<span class="sourceLineNo">103</span> * if there is one.<a name="line.103"></a>
<span class="sourceLineNo">104</span> */<a name="line.104"></a>
<span class="sourceLineNo">105</span> private static final Interner&lt;ServerName&gt; INTERN_POOL = Interners.newWeakInterner();<a name="line.105"></a>
<span class="sourceLineNo">106</span><a name="line.106"></a>
<span class="sourceLineNo">107</span> protected ServerName(final String hostname, final int port, final long startcode) {<a name="line.107"></a>
<span class="sourceLineNo">108</span> this(Address.fromParts(hostname, port), startcode);<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> private ServerName(final Address address, final long startcode) {<a name="line.111"></a>
<span class="sourceLineNo">112</span> // Use HostAndPort to host port and hostname. Does validation and can do ipv6<a name="line.112"></a>
<span class="sourceLineNo">113</span> this.address = address;<a name="line.113"></a>
<span class="sourceLineNo">114</span> this.startcode = startcode;<a name="line.114"></a>
<span class="sourceLineNo">115</span> this.servername = getServerName(this.address.getHostname(),<a name="line.115"></a>
<span class="sourceLineNo">116</span> this.address.getPort(), startcode);<a name="line.116"></a>
<span class="sourceLineNo">117</span> }<a name="line.117"></a>
<span class="sourceLineNo">118</span><a name="line.118"></a>
<span class="sourceLineNo">119</span> private ServerName(final String hostAndPort, final long startCode) {<a name="line.119"></a>
<span class="sourceLineNo">120</span> this(Address.fromString(hostAndPort), startCode);<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> /**<a name="line.123"></a>
<span class="sourceLineNo">124</span> * @param hostname the hostname string to get the actual hostname from<a name="line.124"></a>
<span class="sourceLineNo">125</span> * @return hostname minus the domain, if there is one (will do pass-through on ip addresses)<a name="line.125"></a>
<span class="sourceLineNo">126</span> */<a name="line.126"></a>
<span class="sourceLineNo">127</span> private static String getHostNameMinusDomain(final String hostname) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> if (InetAddresses.isInetAddress(hostname)) {<a name="line.128"></a>
<span class="sourceLineNo">129</span> return hostname;<a name="line.129"></a>
<span class="sourceLineNo">130</span> }<a name="line.130"></a>
<span class="sourceLineNo">131</span> String[] parts = hostname.split("\\.");<a name="line.131"></a>
<span class="sourceLineNo">132</span> if (parts.length == 0) {<a name="line.132"></a>
<span class="sourceLineNo">133</span> return hostname;<a name="line.133"></a>
<span class="sourceLineNo">134</span> }<a name="line.134"></a>
<span class="sourceLineNo">135</span><a name="line.135"></a>
<span class="sourceLineNo">136</span> return parts[0];<a name="line.136"></a>
<span class="sourceLineNo">137</span> }<a name="line.137"></a>
<span class="sourceLineNo">138</span><a name="line.138"></a>
<span class="sourceLineNo">139</span> /**<a name="line.139"></a>
<span class="sourceLineNo">140</span> * Retrieve an instance of ServerName.<a name="line.140"></a>
<span class="sourceLineNo">141</span> * Callers should use the equals method to compare returned instances, though we may return<a name="line.141"></a>
<span class="sourceLineNo">142</span> * a shared immutable object as an internal optimization.<a name="line.142"></a>
<span class="sourceLineNo">143</span> */<a name="line.143"></a>
<span class="sourceLineNo">144</span> public static ServerName valueOf(final String hostname, final int port, final long startcode) {<a name="line.144"></a>
<span class="sourceLineNo">145</span> return INTERN_POOL.intern(new ServerName(hostname, port, startcode));<a name="line.145"></a>
<span class="sourceLineNo">146</span> }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span> /**<a name="line.148"></a>
<span class="sourceLineNo">149</span> * Retrieve an instance of ServerName.<a name="line.149"></a>
<span class="sourceLineNo">150</span> * Callers should use the equals method to compare returned instances, though we may return<a name="line.150"></a>
<span class="sourceLineNo">151</span> * a shared immutable object as an internal optimization.<a name="line.151"></a>
<span class="sourceLineNo">152</span> */<a name="line.152"></a>
<span class="sourceLineNo">153</span> public static ServerName valueOf(final String serverName) {<a name="line.153"></a>
<span class="sourceLineNo">154</span> final String hostname = serverName.substring(0, serverName.indexOf(SERVERNAME_SEPARATOR));<a name="line.154"></a>
<span class="sourceLineNo">155</span> final int port = Integer.parseInt(serverName.split(SERVERNAME_SEPARATOR)[1]);<a name="line.155"></a>
<span class="sourceLineNo">156</span> final long statuscode =<a name="line.156"></a>
<span class="sourceLineNo">157</span> Long.parseLong(serverName.substring(serverName.lastIndexOf(SERVERNAME_SEPARATOR) + 1));<a name="line.157"></a>
<span class="sourceLineNo">158</span> return INTERN_POOL.intern(new ServerName(hostname, port, statuscode));<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> * Retrieve an instance of ServerName.<a name="line.162"></a>
<span class="sourceLineNo">163</span> * Callers should use the equals method to compare returned instances, though we may return<a name="line.163"></a>
<span class="sourceLineNo">164</span> * a shared immutable object as an internal optimization.<a name="line.164"></a>
<span class="sourceLineNo">165</span> */<a name="line.165"></a>
<span class="sourceLineNo">166</span> public static ServerName valueOf(final String hostAndPort, final long startCode) {<a name="line.166"></a>
<span class="sourceLineNo">167</span> return INTERN_POOL.intern(new ServerName(hostAndPort, startCode));<a name="line.167"></a>
<span class="sourceLineNo">168</span> }<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> * Retrieve an instance of {@link ServerName}. Callers should use the {@link #equals(Object)}<a name="line.171"></a>
<span class="sourceLineNo">172</span> * method to compare returned instances, though we may return a shared immutable object as an<a name="line.172"></a>
<span class="sourceLineNo">173</span> * internal optimization.<a name="line.173"></a>
<span class="sourceLineNo">174</span> *<a name="line.174"></a>
<span class="sourceLineNo">175</span> * @param address the {@link Address} to use for getting the {@link ServerName}<a name="line.175"></a>
<span class="sourceLineNo">176</span> * @param startcode the startcode to use for getting the {@link ServerName}<a name="line.176"></a>
<span class="sourceLineNo">177</span> * @return the constructed {@link ServerName}<a name="line.177"></a>
<span class="sourceLineNo">178</span> * @see #valueOf(String, int, long)<a name="line.178"></a>
<span class="sourceLineNo">179</span> */<a name="line.179"></a>
<span class="sourceLineNo">180</span> public static ServerName valueOf(final Address address, final long startcode) {<a name="line.180"></a>
<span class="sourceLineNo">181</span> return valueOf(address.getHostname(), address.getPort(), startcode);<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> @Override<a name="line.184"></a>
<span class="sourceLineNo">185</span> public String toString() {<a name="line.185"></a>
<span class="sourceLineNo">186</span> return getServerName();<a name="line.186"></a>
<span class="sourceLineNo">187</span> }<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 Return a SHORT version of {@link #toString()}, one that has the host only,<a name="line.190"></a>
<span class="sourceLineNo">191</span> * minus the domain, and the port only -- no start code; the String is for us internally mostly<a name="line.191"></a>
<span class="sourceLineNo">192</span> * tying threads to their server. Not for external use. It is lossy and will not work in<a name="line.192"></a>
<span class="sourceLineNo">193</span> * in compares, etc.<a name="line.193"></a>
<span class="sourceLineNo">194</span> */<a name="line.194"></a>
<span class="sourceLineNo">195</span> public String toShortString() {<a name="line.195"></a>
<span class="sourceLineNo">196</span> return Addressing.createHostAndPortStr(<a name="line.196"></a>
<span class="sourceLineNo">197</span> getHostNameMinusDomain(this.address.getHostname()),<a name="line.197"></a>
<span class="sourceLineNo">198</span> this.address.getPort());<a name="line.198"></a>
<span class="sourceLineNo">199</span> }<a name="line.199"></a>
<span class="sourceLineNo">200</span><a name="line.200"></a>
<span class="sourceLineNo">201</span> /**<a name="line.201"></a>
<span class="sourceLineNo">202</span> * @return {@link #getServerName()} as bytes with a short-sized prefix with<a name="line.202"></a>
<span class="sourceLineNo">203</span> * the {@link #VERSION} of this class.<a name="line.203"></a>
<span class="sourceLineNo">204</span> */<a name="line.204"></a>
<span class="sourceLineNo">205</span> public synchronized byte [] getVersionedBytes() {<a name="line.205"></a>
<span class="sourceLineNo">206</span> if (this.bytes == null) {<a name="line.206"></a>
<span class="sourceLineNo">207</span> this.bytes = Bytes.add(VERSION_BYTES, Bytes.toBytes(getServerName()));<a name="line.207"></a>
<span class="sourceLineNo">208</span> }<a name="line.208"></a>
<span class="sourceLineNo">209</span> return this.bytes;<a name="line.209"></a>
<span class="sourceLineNo">210</span> }<a name="line.210"></a>
<span class="sourceLineNo">211</span><a name="line.211"></a>
<span class="sourceLineNo">212</span> public String getServerName() {<a name="line.212"></a>
<span class="sourceLineNo">213</span> return servername;<a name="line.213"></a>
<span class="sourceLineNo">214</span> }<a name="line.214"></a>
<span class="sourceLineNo">215</span><a name="line.215"></a>
<span class="sourceLineNo">216</span> public String getHostname() {<a name="line.216"></a>
<span class="sourceLineNo">217</span> return this.address.getHostname();<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> public String getHostnameLowerCase() {<a name="line.220"></a>
<span class="sourceLineNo">221</span> return this.address.getHostname().toLowerCase(Locale.ROOT);<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> public int getPort() {<a name="line.224"></a>
<span class="sourceLineNo">225</span> return this.address.getPort();<a name="line.225"></a>
<span class="sourceLineNo">226</span> }<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span> public long getStartcode() {<a name="line.228"></a>
<span class="sourceLineNo">229</span> return startcode;<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> /**<a name="line.232"></a>
<span class="sourceLineNo">233</span> * For internal use only.<a name="line.233"></a>
<span class="sourceLineNo">234</span> * @param hostName the name of the host to use<a name="line.234"></a>
<span class="sourceLineNo">235</span> * @param port the port on the host to use<a name="line.235"></a>
<span class="sourceLineNo">236</span> * @param startcode the startcode to use for formatting<a name="line.236"></a>
<span class="sourceLineNo">237</span> * @return Server name made of the concatenation of hostname, port and<a name="line.237"></a>
<span class="sourceLineNo">238</span> * startcode formatted as &lt;code&gt;&amp;lt;hostname&amp;gt; ',' &amp;lt;port&amp;gt; ',' &amp;lt;startcode&amp;gt;&lt;/code&gt;<a name="line.238"></a>
<span class="sourceLineNo">239</span> */<a name="line.239"></a>
<span class="sourceLineNo">240</span> private static String getServerName(String hostName, int port, long startcode) {<a name="line.240"></a>
<span class="sourceLineNo">241</span> return hostName.toLowerCase(Locale.ROOT) + SERVERNAME_SEPARATOR + port<a name="line.241"></a>
<span class="sourceLineNo">242</span> + SERVERNAME_SEPARATOR + startcode;<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> public Address getAddress() {<a name="line.245"></a>
<span class="sourceLineNo">246</span> return this.address;<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> @Override<a name="line.249"></a>
<span class="sourceLineNo">250</span> public int compareTo(ServerName other) {<a name="line.250"></a>
<span class="sourceLineNo">251</span> int compare;<a name="line.251"></a>
<span class="sourceLineNo">252</span> if (other == null) {<a name="line.252"></a>
<span class="sourceLineNo">253</span> return -1;<a name="line.253"></a>
<span class="sourceLineNo">254</span> }<a name="line.254"></a>
<span class="sourceLineNo">255</span> if (this.getHostname() == null) {<a name="line.255"></a>
<span class="sourceLineNo">256</span> if (other.getHostname() != null) {<a name="line.256"></a>
<span class="sourceLineNo">257</span> return 1;<a name="line.257"></a>
<span class="sourceLineNo">258</span> }<a name="line.258"></a>
<span class="sourceLineNo">259</span> } else {<a name="line.259"></a>
<span class="sourceLineNo">260</span> if (other.getHostname() == null) {<a name="line.260"></a>
<span class="sourceLineNo">261</span> return -1;<a name="line.261"></a>
<span class="sourceLineNo">262</span> }<a name="line.262"></a>
<span class="sourceLineNo">263</span> compare = this.getHostname().compareToIgnoreCase(other.getHostname());<a name="line.263"></a>
<span class="sourceLineNo">264</span> if (compare != 0) {<a name="line.264"></a>
<span class="sourceLineNo">265</span> return compare;<a name="line.265"></a>
<span class="sourceLineNo">266</span> }<a name="line.266"></a>
<span class="sourceLineNo">267</span> }<a name="line.267"></a>
<span class="sourceLineNo">268</span> compare = this.getPort() - other.getPort();<a name="line.268"></a>
<span class="sourceLineNo">269</span> if (compare != 0) {<a name="line.269"></a>
<span class="sourceLineNo">270</span> return compare;<a name="line.270"></a>
<span class="sourceLineNo">271</span> }<a name="line.271"></a>
<span class="sourceLineNo">272</span> return Long.compare(this.getStartcode(), other.getStartcode());<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> @Override<a name="line.275"></a>
<span class="sourceLineNo">276</span> public int hashCode() {<a name="line.276"></a>
<span class="sourceLineNo">277</span> return getServerName().hashCode();<a name="line.277"></a>
<span class="sourceLineNo">278</span> }<a name="line.278"></a>
<span class="sourceLineNo">279</span><a name="line.279"></a>
<span class="sourceLineNo">280</span> @Override<a name="line.280"></a>
<span class="sourceLineNo">281</span> public boolean equals(Object o) {<a name="line.281"></a>
<span class="sourceLineNo">282</span> if (this == o) {<a name="line.282"></a>
<span class="sourceLineNo">283</span> return true;<a name="line.283"></a>
<span class="sourceLineNo">284</span> }<a name="line.284"></a>
<span class="sourceLineNo">285</span> if (o == null) {<a name="line.285"></a>
<span class="sourceLineNo">286</span> return false;<a name="line.286"></a>
<span class="sourceLineNo">287</span> }<a name="line.287"></a>
<span class="sourceLineNo">288</span> if (!(o instanceof ServerName)) {<a name="line.288"></a>
<span class="sourceLineNo">289</span> return false;<a name="line.289"></a>
<span class="sourceLineNo">290</span> }<a name="line.290"></a>
<span class="sourceLineNo">291</span> return this.compareTo((ServerName)o) == 0;<a name="line.291"></a>
<span class="sourceLineNo">292</span> }<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> * @param left the first server address to compare<a name="line.295"></a>
<span class="sourceLineNo">296</span> * @param right the second server address to compare<a name="line.296"></a>
<span class="sourceLineNo">297</span> * @return {@code true} if {@code left} and {@code right} have the same hostname and port.<a name="line.297"></a>
<span class="sourceLineNo">298</span> */<a name="line.298"></a>
<span class="sourceLineNo">299</span> public static boolean isSameAddress(final ServerName left, final ServerName right) {<a name="line.299"></a>
<span class="sourceLineNo">300</span> return left.getAddress().equals(right.getAddress());<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> * Use this method instantiating a {@link ServerName} from bytes<a name="line.304"></a>
<span class="sourceLineNo">305</span> * gotten from a call to {@link #getVersionedBytes()}. Will take care of the<a name="line.305"></a>
<span class="sourceLineNo">306</span> * case where bytes were written by an earlier version of hbase.<a name="line.306"></a>
<span class="sourceLineNo">307</span> * @param versionedBytes Pass bytes gotten from a call to {@link #getVersionedBytes()}<a name="line.307"></a>
<span class="sourceLineNo">308</span> * @return A ServerName instance.<a name="line.308"></a>
<span class="sourceLineNo">309</span> * @see #getVersionedBytes()<a name="line.309"></a>
<span class="sourceLineNo">310</span> */<a name="line.310"></a>
<span class="sourceLineNo">311</span> public static ServerName parseVersionedServerName(final byte [] versionedBytes) {<a name="line.311"></a>
<span class="sourceLineNo">312</span> // Version is a short.<a name="line.312"></a>
<span class="sourceLineNo">313</span> short version = Bytes.toShort(versionedBytes);<a name="line.313"></a>
<span class="sourceLineNo">314</span> if (version == VERSION) {<a name="line.314"></a>
<span class="sourceLineNo">315</span> int length = versionedBytes.length - Bytes.SIZEOF_SHORT;<a name="line.315"></a>
<span class="sourceLineNo">316</span> return valueOf(Bytes.toString(versionedBytes, Bytes.SIZEOF_SHORT, length));<a name="line.316"></a>
<span class="sourceLineNo">317</span> }<a name="line.317"></a>
<span class="sourceLineNo">318</span> // Presume the bytes were written with an old version of hbase and that the<a name="line.318"></a>
<span class="sourceLineNo">319</span> // bytes are actually a String of the form "'&lt;hostname&gt;' ':' '&lt;port&gt;'".<a name="line.319"></a>
<span class="sourceLineNo">320</span> return valueOf(Bytes.toString(versionedBytes), NON_STARTCODE);<a name="line.320"></a>
<span class="sourceLineNo">321</span> }<a name="line.321"></a>
<span class="sourceLineNo">322</span><a name="line.322"></a>
<span class="sourceLineNo">323</span> /**<a name="line.323"></a>
<span class="sourceLineNo">324</span> * @param str Either an instance of {@link #toString()} or a<a name="line.324"></a>
<span class="sourceLineNo">325</span> * "'&amp;lt;hostname&amp;gt;' ':' '&amp;lt;port&amp;gt;'".<a name="line.325"></a>
<span class="sourceLineNo">326</span> * @return A ServerName instance.<a name="line.326"></a>
<span class="sourceLineNo">327</span> */<a name="line.327"></a>
<span class="sourceLineNo">328</span> public static ServerName parseServerName(final String str) {<a name="line.328"></a>
<span class="sourceLineNo">329</span> return SERVERNAME_PATTERN.matcher(str).matches()? valueOf(str) :<a name="line.329"></a>
<span class="sourceLineNo">330</span> valueOf(str, NON_STARTCODE);<a name="line.330"></a>
<span class="sourceLineNo">331</span> }<a name="line.331"></a>
<span class="sourceLineNo">332</span><a name="line.332"></a>
<span class="sourceLineNo">333</span> /**<a name="line.333"></a>
<span class="sourceLineNo">334</span> * @return true if the String follows the pattern of {@link #toString()}, false<a name="line.334"></a>
<span class="sourceLineNo">335</span> * otherwise.<a name="line.335"></a>
<span class="sourceLineNo">336</span> */<a name="line.336"></a>
<span class="sourceLineNo">337</span> public static boolean isFullServerName(final String str){<a name="line.337"></a>
<span class="sourceLineNo">338</span> if (str == null ||str.isEmpty()) {<a name="line.338"></a>
<span class="sourceLineNo">339</span> return false;<a name="line.339"></a>
<span class="sourceLineNo">340</span> }<a name="line.340"></a>
<span class="sourceLineNo">341</span> return SERVERNAME_PATTERN.matcher(str).matches();<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>
</pre>
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