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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.io;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.regex.Matcher;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.regex.Pattern;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.conf.Configuration;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.fs.FileSystem;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.fs.Path;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HConstants;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.TableName;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.mob.MobConstants;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.regionserver.HRegion;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.HFileArchiveUtil;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.slf4j.Logger;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.slf4j.LoggerFactory;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span>/**<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * HFileLink describes a link to an hfile. An hfile can be served from a region or from the hfile<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * archive directory (/hbase/.archive) HFileLink allows to access the referenced hfile regardless of<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * the location where it is.<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * <p><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * Searches for hfiles in the following order and locations:<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * <ul><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * <li>/hbase/table/region/cf/hfile</li><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * <li>/hbase/.archive/table/region/cf/hfile</li><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * </ul><a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * The link checks first in the original path if it is not present it fallbacks to the archived<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * path.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>@InterfaceAudience.Private<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "EQ_DOESNT_OVERRIDE_EQUALS",<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> justification = "To be fixed but warning suppressed for now")<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>public class HFileLink extends FileLink {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private static final Logger LOG = LoggerFactory.getLogger(HFileLink.class);<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> * A non-capture group, for HFileLink, so that this can be embedded. The HFileLink describe a link<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * to an hfile in a different table/region and the name is in the form: table=region-hfile.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * <p><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * Table name is ([\p{IsAlphabetic}\p{Digit}][\p{IsAlphabetic}\p{Digit}.-]*), so '=' is an invalid<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * character for the table name. Region name is ([a-f0-9]+), so '-' is an invalid character for<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * the region name. HFile is ([0-9a-f]+(?:_SeqId_[0-9]+_)?) covering the plain hfiles (uuid) and<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * the bulk loaded (_SeqId_[0-9]+_) hfiles.<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * <p><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * Here is an example name: /hbase/test/0123/cf/testtb=4567-abcd where 'testtb' is table name and<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * '4567' is region name and 'abcd' is filename.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> */<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public static final String LINK_NAME_REGEX = String.format("(?:(?:%s=)?)%s=%s-%s",<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> TableName.VALID_NAMESPACE_REGEX, TableName.VALID_TABLE_QUALIFIER_REGEX,<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> RegionInfoBuilder.ENCODED_REGION_NAME_REGEX, StoreFileInfo.HFILE_NAME_REGEX);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> /** Define the HFile Link name parser in the form of: table=region-hfile */<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public static final Pattern LINK_NAME_PATTERN =<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> Pattern.compile(String.format("^(?:(%s)(?:\\=))?(%s)=(%s)-(%s)$",<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> TableName.VALID_NAMESPACE_REGEX, TableName.VALID_TABLE_QUALIFIER_REGEX,<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> RegionInfoBuilder.ENCODED_REGION_NAME_REGEX, StoreFileInfo.HFILE_NAME_REGEX));<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> /**<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * The pattern should be used for hfile and reference links that can be found in<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * /hbase/table/region/family/<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> */<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private static final Pattern REF_OR_HFILE_LINK_PATTERN =<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> Pattern.compile(String.format("^(?:(%s)(?:=))?(%s)=(%s)-(.+)$", TableName.VALID_NAMESPACE_REGEX,<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> TableName.VALID_TABLE_QUALIFIER_REGEX, RegionInfoBuilder.ENCODED_REGION_NAME_REGEX));<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private final Path archivePath;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> private final Path originPath;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> private final Path mobPath;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> private final Path tempPath;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> /**<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * Dead simple hfile link constructor<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> */<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> public HFileLink(final Path originPath, final Path tempPath, final Path mobPath,<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> final Path archivePath) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> this.tempPath = tempPath;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> this.originPath = originPath;<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> this.mobPath = mobPath;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> this.archivePath = archivePath;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> setLocations(originPath, archivePath, tempPath, mobPath);<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> /**<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * @param conf {@link Configuration} from which to extract specific archive locations<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @param hFileLinkPattern The path ending with a HFileLink pattern. (table=region-hfile)<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * @throws IOException on unexpected error.<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> */<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> public static final HFileLink buildFromHFileLinkPattern(Configuration conf, Path hFileLinkPattern)<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> throws IOException {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> return buildFromHFileLinkPattern(CommonFSUtils.getRootDir(conf),<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> HFileArchiveUtil.getArchivePath(conf), hFileLinkPattern);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> /**<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * @param rootDir Path to the root directory where hbase files are stored<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @param archiveDir Path to the hbase archive directory<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * @param hFileLinkPattern The path of the HFile Link.<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> */<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> public final static HFileLink buildFromHFileLinkPattern(final Path rootDir, final Path archiveDir,<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> final Path hFileLinkPattern) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> Path hfilePath = getHFileLinkPatternRelativePath(hFileLinkPattern);<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> Path tempPath = new Path(new Path(rootDir, HConstants.HBASE_TEMP_DIRECTORY), hfilePath);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> Path originPath = new Path(rootDir, hfilePath);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> Path mobPath = new Path(new Path(rootDir, MobConstants.MOB_DIR_NAME), hfilePath);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> Path archivePath = new Path(archiveDir, hfilePath);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> return new HFileLink(originPath, tempPath, mobPath, archivePath);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> /**<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * Create an HFileLink relative path for the table/region/family/hfile location<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @param table Table name<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * @param region Region Name<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * @param family Family Name<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * @param hfile HFile Name<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * @return the relative Path to open the specified table/region/family/hfile link<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> */<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public static Path createPath(final TableName table, final String region, final String family,<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> final String hfile) {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> if (HFileLink.isHFileLink(hfile)) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> return new Path(family, hfile);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> return new Path(family, HFileLink.createHFileLinkName(table, region, hfile));<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> * Create an HFileLink instance from table/region/family/hfile location<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * @param conf {@link Configuration} from which to extract specific archive locations<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> * @param table Table name<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> * @param region Region Name<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> * @param family Family Name<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> * @param hfile HFile Name<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> * @return Link to the file with the specified table/region/family/hfile location<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> * @throws IOException on unexpected error.<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> */<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> public static HFileLink build(final Configuration conf, final TableName table,<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> final String region, final String family, final String hfile) throws IOException {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> return HFileLink.buildFromHFileLinkPattern(conf, createPath(table, region, family, hfile));<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> /** Returns the origin path of the hfile. */<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> public Path getOriginPath() {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> return this.originPath;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> /** Returns the path of the archived hfile. */<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> public Path getArchivePath() {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> return this.archivePath;<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> /** Returns the path of the mob hfiles. */<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> public Path getMobPath() {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> return this.mobPath;<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span><a name="line.177"></a> |
| <span class="sourceLineNo">178</span> /**<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> * @param path Path to check.<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> * @return True if the path is a HFileLink.<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> */<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> public static boolean isHFileLink(final Path path) {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> return isHFileLink(path.getName());<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> /**<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> * @param fileName File name to check.<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * @return True if the path is a HFileLink.<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> */<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> public static boolean isHFileLink(String fileName) {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> Matcher m = LINK_NAME_PATTERN.matcher(fileName);<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> if (!m.matches()) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> return false;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> return m.groupCount() > 2 && m.group(4) != null && m.group(3) != null && m.group(2) != null;<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> /**<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> * Convert a HFileLink path to a table relative path. e.g. the link:<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * /hbase/test/0123/cf/testtb=4567-abcd becomes: /hbase/testtb/4567/cf/abcd<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> * @param path HFileLink path<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> * @return Relative table path<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> * @throws IOException on unexpected error.<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> */<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> private static Path getHFileLinkPatternRelativePath(final Path path) {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> // table=region-hfile<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(path.getName());<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> if (!m.matches()) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> throw new IllegalArgumentException(path.getName() + " is not a valid HFileLink pattern!");<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> // Convert the HFileLink name into a real table/region/cf/hfile path.<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> TableName tableName = TableName.valueOf(m.group(1), m.group(2));<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> String regionName = m.group(3);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> String hfileName = m.group(4);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> String familyName = path.getParent().getName();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> Path tableDir = CommonFSUtils.getTableDir(new Path("./"), tableName);<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> return new Path(tableDir, new Path(regionName, new Path(familyName, hfileName)));<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<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">222</span> * Get the HFile name of the referenced link<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> * @param fileName HFileLink file name<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> * @return the name of the referenced HFile<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> */<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> public static String getReferencedHFileName(final String fileName) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(fileName);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> if (!m.matches()) {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> throw new IllegalArgumentException(fileName + " is not a valid HFileLink name!");<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> return (m.group(4));<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span><a name="line.233"></a> |
| <span class="sourceLineNo">234</span> /**<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * Get the Region name of the referenced link<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> * @param fileName HFileLink file name<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> * @return the name of the referenced Region<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> */<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> public static String getReferencedRegionName(final String fileName) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(fileName);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> if (!m.matches()) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> throw new IllegalArgumentException(fileName + " is not a valid HFileLink name!");<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> return (m.group(3));<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> /**<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> * Get the Table name of the referenced link<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * @param fileName HFileLink file name<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * @return the name of the referenced Table<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> */<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> public static TableName getReferencedTableName(final String fileName) {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(fileName);<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> if (!m.matches()) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> throw new IllegalArgumentException(fileName + " is not a valid HFileLink name!");<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> return (TableName.valueOf(m.group(1), m.group(2)));<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> /**<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> * Create a new HFileLink name<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> * @param hfileRegionInfo - Linked HFile Region Info<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> * @param hfileName - Linked HFile name<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> * @return file name of the HFile Link<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> */<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> public static String createHFileLinkName(final RegionInfo hfileRegionInfo,<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> final String hfileName) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return createHFileLinkName(hfileRegionInfo.getTable(), hfileRegionInfo.getEncodedName(),<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> hfileName);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> /**<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * Create a new HFileLink name<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * @param tableName - Linked HFile table name<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> * @param regionName - Linked HFile region name<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> * @param hfileName - Linked HFile name<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> * @return file name of the HFile Link<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> */<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> public static String createHFileLinkName(final TableName tableName, final String regionName,<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> final String hfileName) {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> String s = String.format("%s=%s-%s",<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> tableName.getNameAsString().replace(TableName.NAMESPACE_DELIM, '='), regionName, hfileName);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> return s;<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> }<a name="line.284"></a> |
| <span class="sourceLineNo">285</span><a name="line.285"></a> |
| <span class="sourceLineNo">286</span> /**<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> * Create a new HFileLink<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> * <p><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * It also adds a back-reference to the hfile back-reference directory to simplify the<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * reference-count and the cleaning process.<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> * @param fs {@link FileSystem} on which to write the HFileLink<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> * @param dstFamilyPath - Destination path (table/region/cf/)<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * @param hfileRegionInfo - Linked HFile Region Info<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> * @param hfileName - Linked HFile name<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> * @return the file link name.<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> * @throws IOException on file or parent directory creation failure.<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> */<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> public static String create(final Configuration conf, final FileSystem fs,<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> final Path dstFamilyPath, final RegionInfo hfileRegionInfo, final String hfileName)<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> throws IOException {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> return create(conf, fs, dstFamilyPath, hfileRegionInfo, hfileName, true);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> /**<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * Create a new HFileLink<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> * <p><a name="line.307"></a> |
| <span class="sourceLineNo">308</span> * It also adds a back-reference to the hfile back-reference directory to simplify the<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * reference-count and the cleaning process.<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * @param fs {@link FileSystem} on which to write the HFileLink<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * @param dstFamilyPath - Destination path (table/region/cf/)<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @param hfileRegionInfo - Linked HFile Region Info<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> * @param hfileName - Linked HFile name<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * @param createBackRef - Whether back reference should be created. Defaults to true.<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> * @return the file link name.<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> * @throws IOException on file or parent directory creation failure.<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> */<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> public static String create(final Configuration conf, final FileSystem fs,<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> final Path dstFamilyPath, final RegionInfo hfileRegionInfo, final String hfileName,<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> final boolean createBackRef) throws IOException {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> TableName linkedTable = hfileRegionInfo.getTable();<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> String linkedRegion = hfileRegionInfo.getEncodedName();<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> return create(conf, fs, dstFamilyPath, linkedTable, linkedRegion, hfileName, createBackRef);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span><a name="line.326"></a> |
| <span class="sourceLineNo">327</span> /**<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> * Create a new HFileLink<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> * <p><a name="line.329"></a> |
| <span class="sourceLineNo">330</span> * It also adds a back-reference to the hfile back-reference directory to simplify the<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> * reference-count and the cleaning process.<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> * @param fs {@link FileSystem} on which to write the HFileLink<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * @param dstFamilyPath - Destination path (table/region/cf/)<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> * @param linkedTable - Linked Table Name<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> * @param linkedRegion - Linked Region Name<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> * @param hfileName - Linked HFile name<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> * @return the file link name.<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> * @throws IOException on file or parent directory creation failure.<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> */<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> public static String create(final Configuration conf, final FileSystem fs,<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> final Path dstFamilyPath, final TableName linkedTable, final String linkedRegion,<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> final String hfileName) throws IOException {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> return create(conf, fs, dstFamilyPath, linkedTable, linkedRegion, hfileName, true);<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<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> * Create a new HFileLink. In the event of link creation failure, this method throws an<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> * IOException, so that the calling upper laying can decide on how to proceed with this.<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> * <p><a name="line.350"></a> |
| <span class="sourceLineNo">351</span> * It also adds a back-reference to the hfile back-reference directory to simplify the<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> * reference-count and the cleaning process.<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> * @param fs {@link FileSystem} on which to write the HFileLink<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> * @param dstFamilyPath - Destination path (table/region/cf/)<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> * @param linkedTable - Linked Table Name<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> * @param linkedRegion - Linked Region Name<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> * @param hfileName - Linked HFile name<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> * @param createBackRef - Whether back reference should be created. Defaults to true.<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> * @return the file link name.<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> * @throws IOException on file or parent directory creation failure.<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> */<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> public static String create(final Configuration conf, final FileSystem fs,<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> final Path dstFamilyPath, final TableName linkedTable, final String linkedRegion,<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> final String hfileName, final boolean createBackRef) throws IOException {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> String familyName = dstFamilyPath.getName();<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> String regionName = dstFamilyPath.getParent().getName();<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> String tableName =<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> CommonFSUtils.getTableName(dstFamilyPath.getParent().getParent()).getNameAsString();<a name="line.369"></a> |
| <span class="sourceLineNo">370</span><a name="line.370"></a> |
| <span class="sourceLineNo">371</span> return create(conf, fs, dstFamilyPath, familyName, tableName, regionName, linkedTable,<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> linkedRegion, hfileName, createBackRef);<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span><a name="line.374"></a> |
| <span class="sourceLineNo">375</span> /**<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> * Create a new HFileLink<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> * <p><a name="line.377"></a> |
| <span class="sourceLineNo">378</span> * It also adds a back-reference to the hfile back-reference directory to simplify the<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * reference-count and the cleaning process.<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> * @param fs {@link FileSystem} on which to write the HFileLink<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> * @param dstFamilyPath - Destination path (table/region/cf/)<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> * @param dstTableName - Destination table name<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> * @param dstRegionName - Destination region name<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> * @param linkedTable - Linked Table Name<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> * @param linkedRegion - Linked Region Name<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> * @param hfileName - Linked HFile name<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> * @param createBackRef - Whether back reference should be created. Defaults to true.<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> * @return the file link name.<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> * @throws IOException on file or parent directory creation failure<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> */<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> public static String create(final Configuration conf, final FileSystem fs,<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> final Path dstFamilyPath, final String familyName, final String dstTableName,<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> final String dstRegionName, final TableName linkedTable, final String linkedRegion,<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> final String hfileName, final boolean createBackRef) throws IOException {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> String name = createHFileLinkName(linkedTable, linkedRegion, hfileName);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> String refName = createBackReferenceName(dstTableName, dstRegionName);<a name="line.397"></a> |
| <span class="sourceLineNo">398</span><a name="line.398"></a> |
| <span class="sourceLineNo">399</span> // Make sure the destination directory exists<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> fs.mkdirs(dstFamilyPath);<a name="line.400"></a> |
| <span class="sourceLineNo">401</span><a name="line.401"></a> |
| <span class="sourceLineNo">402</span> // Make sure the FileLink reference directory exists<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> Path archiveStoreDir =<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> HFileArchiveUtil.getStoreArchivePath(conf, linkedTable, linkedRegion, familyName);<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> Path backRefPath = null;<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> if (createBackRef) {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> Path backRefssDir = getBackReferencesDir(archiveStoreDir, hfileName);<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> fs.mkdirs(backRefssDir);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span><a name="line.409"></a> |
| <span class="sourceLineNo">410</span> // Create the reference for the link<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> backRefPath = new Path(backRefssDir, refName);<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> fs.createNewFile(backRefPath);<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> }<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> try {<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> // Create the link<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> if (fs.createNewFile(new Path(dstFamilyPath, name))) {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> return name;<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> } catch (IOException e) {<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> LOG.error("couldn't create the link=" + name + " for " + dstFamilyPath, e);<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> // Revert the reference if the link creation failed<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> if (createBackRef) {<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> fs.delete(backRefPath, false);<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> }<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> throw e;<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> }<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> throw new IOException(<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> "File link=" + name + " already exists under " + dstFamilyPath + " folder.");<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> }<a name="line.429"></a> |
| <span class="sourceLineNo">430</span><a name="line.430"></a> |
| <span class="sourceLineNo">431</span> /**<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> * Create a new HFileLink starting from a hfileLink name<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> * <p><a name="line.433"></a> |
| <span class="sourceLineNo">434</span> * It also adds a back-reference to the hfile back-reference directory to simplify the<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> * reference-count and the cleaning process.<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> * @param fs {@link FileSystem} on which to write the HFileLink<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> * @param dstFamilyPath - Destination path (table/region/cf/)<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> * @param hfileLinkName - HFileLink name (it contains hfile-region-table)<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> * @param createBackRef - Whether back reference should be created. Defaults to true.<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> * @return the file link name.<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> * @throws IOException on file or parent directory creation failure.<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> */<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> public static String createFromHFileLink(final Configuration conf, final FileSystem fs,<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> final Path dstFamilyPath, final String hfileLinkName, final boolean createBackRef)<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> throws IOException {<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> Matcher m = LINK_NAME_PATTERN.matcher(hfileLinkName);<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> if (!m.matches()) {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> throw new IllegalArgumentException(hfileLinkName + " is not a valid HFileLink name!");<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> return create(conf, fs, dstFamilyPath, TableName.valueOf(m.group(1), m.group(2)), m.group(3),<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> m.group(4), createBackRef);<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> }<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> * Create the back reference name<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> */<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> // package-private for testing<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> static String createBackReferenceName(final String tableNameStr, final String regionName) {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span><a name="line.460"></a> |
| <span class="sourceLineNo">461</span> return regionName + "." + tableNameStr.replace(TableName.NAMESPACE_DELIM, '=');<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> }<a name="line.462"></a> |
| <span class="sourceLineNo">463</span><a name="line.463"></a> |
| <span class="sourceLineNo">464</span> /**<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> * Get the full path of the HFile referenced by the back reference<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> * @param rootDir root hbase directory<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> * @param linkRefPath Link Back Reference path<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> * @return full path of the referenced hfile<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> */<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> public static Path getHFileFromBackReference(final Path rootDir, final Path linkRefPath) {<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> Pair<TableName, String> p = parseBackReferenceName(linkRefPath.getName());<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> TableName linkTableName = p.getFirst();<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> String linkRegionName = p.getSecond();<a name="line.473"></a> |
| <span class="sourceLineNo">474</span><a name="line.474"></a> |
| <span class="sourceLineNo">475</span> String hfileName = getBackReferenceFileName(linkRefPath.getParent());<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> Path familyPath = linkRefPath.getParent().getParent();<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> Path regionPath = familyPath.getParent();<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> Path tablePath = regionPath.getParent();<a name="line.478"></a> |
| <span class="sourceLineNo">479</span><a name="line.479"></a> |
| <span class="sourceLineNo">480</span> String linkName =<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> createHFileLinkName(CommonFSUtils.getTableName(tablePath), regionPath.getName(), hfileName);<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> Path linkTableDir = CommonFSUtils.getTableDir(rootDir, linkTableName);<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> Path regionDir = HRegion.getRegionDir(linkTableDir, linkRegionName);<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> return new Path(new Path(regionDir, familyPath.getName()), linkName);<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> }<a name="line.485"></a> |
| <span class="sourceLineNo">486</span><a name="line.486"></a> |
| <span class="sourceLineNo">487</span> public static Pair<TableName, String> parseBackReferenceName(String name) {<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> int separatorIndex = name.indexOf('.');<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> String linkRegionName = name.substring(0, separatorIndex);<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> String tableSubstr = name.substring(separatorIndex + 1).replace('=', TableName.NAMESPACE_DELIM);<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> TableName linkTableName = TableName.valueOf(tableSubstr);<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> return new Pair<>(linkTableName, linkRegionName);<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 class="sourceLineNo">495</span> /**<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> * Get the full path of the HFile referenced by the back reference<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> * @param conf {@link Configuration} to read for the archive directory name<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> * @param linkRefPath Link Back Reference path<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> * @return full path of the referenced hfile<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> * @throws IOException on unexpected error.<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> */<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> public static Path getHFileFromBackReference(final Configuration conf, final Path linkRefPath)<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> throws IOException {<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> return getHFileFromBackReference(CommonFSUtils.getRootDir(conf), linkRefPath);<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> }<a name="line.505"></a> |
| <span class="sourceLineNo">506</span><a name="line.506"></a> |
| <span class="sourceLineNo">507</span>}<a name="line.507"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
