| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (17) --> |
| <title>Source code</title> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta name="description" content="source: package: org.apache.hadoop.hbase.io, class: HFileLink"> |
| <meta name="generator" content="javadoc/SourceToHTMLConverter"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body class="source-page"> |
| <main role="main"> |
| <div class="source-container"> |
| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.io;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.regex.Matcher;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.regex.Pattern;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.RegionInfoBuilder;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.mob.MobConstants;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.regionserver.HRegion;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.regionserver.StoreFileInfo;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.util.CommonFSUtils;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.util.HFileArchiveUtil;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.util.Pair;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.Logger;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">/**</span> |
| <span class="source-line-no">041</span><span id="line-41"> * HFileLink describes a link to an hfile. An hfile can be served from a region or from the hfile</span> |
| <span class="source-line-no">042</span><span id="line-42"> * archive directory (/hbase/.archive) HFileLink allows to access the referenced hfile regardless of</span> |
| <span class="source-line-no">043</span><span id="line-43"> * the location where it is.</span> |
| <span class="source-line-no">044</span><span id="line-44"> * <p></span> |
| <span class="source-line-no">045</span><span id="line-45"> * Searches for hfiles in the following order and locations:</span> |
| <span class="source-line-no">046</span><span id="line-46"> * <ul></span> |
| <span class="source-line-no">047</span><span id="line-47"> * <li>/hbase/table/region/cf/hfile</li></span> |
| <span class="source-line-no">048</span><span id="line-48"> * <li>/hbase/.archive/table/region/cf/hfile</li></span> |
| <span class="source-line-no">049</span><span id="line-49"> * </ul></span> |
| <span class="source-line-no">050</span><span id="line-50"> * The link checks first in the original path if it is not present it fallbacks to the archived</span> |
| <span class="source-line-no">051</span><span id="line-51"> * path.</span> |
| <span class="source-line-no">052</span><span id="line-52"> */</span> |
| <span class="source-line-no">053</span><span id="line-53">@InterfaceAudience.Private</span> |
| <span class="source-line-no">054</span><span id="line-54">@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "EQ_DOESNT_OVERRIDE_EQUALS",</span> |
| <span class="source-line-no">055</span><span id="line-55"> justification = "To be fixed but warning suppressed for now")</span> |
| <span class="source-line-no">056</span><span id="line-56">public class HFileLink extends FileLink {</span> |
| <span class="source-line-no">057</span><span id="line-57"> private static final Logger LOG = LoggerFactory.getLogger(HFileLink.class);</span> |
| <span class="source-line-no">058</span><span id="line-58"></span> |
| <span class="source-line-no">059</span><span id="line-59"> /**</span> |
| <span class="source-line-no">060</span><span id="line-60"> * A non-capture group, for HFileLink, so that this can be embedded. The HFileLink describe a link</span> |
| <span class="source-line-no">061</span><span id="line-61"> * to an hfile in a different table/region and the name is in the form: table=region-hfile.</span> |
| <span class="source-line-no">062</span><span id="line-62"> * <p></span> |
| <span class="source-line-no">063</span><span id="line-63"> * Table name is ([\p{IsAlphabetic}\p{Digit}][\p{IsAlphabetic}\p{Digit}.-]*), so '=' is an invalid</span> |
| <span class="source-line-no">064</span><span id="line-64"> * character for the table name. Region name is ([a-f0-9]+), so '-' is an invalid character for</span> |
| <span class="source-line-no">065</span><span id="line-65"> * the region name. HFile is ([0-9a-f]+(?:_SeqId_[0-9]+_)?) covering the plain hfiles (uuid) and</span> |
| <span class="source-line-no">066</span><span id="line-66"> * the bulk loaded (_SeqId_[0-9]+_) hfiles.</span> |
| <span class="source-line-no">067</span><span id="line-67"> * <p></span> |
| <span class="source-line-no">068</span><span id="line-68"> * Here is an example name: /hbase/test/0123/cf/testtb=4567-abcd where 'testtb' is table name and</span> |
| <span class="source-line-no">069</span><span id="line-69"> * '4567' is region name and 'abcd' is filename.</span> |
| <span class="source-line-no">070</span><span id="line-70"> */</span> |
| <span class="source-line-no">071</span><span id="line-71"> public static final String LINK_NAME_REGEX = String.format("(?:(?:%s=)?)%s=%s-%s",</span> |
| <span class="source-line-no">072</span><span id="line-72"> TableName.VALID_NAMESPACE_REGEX, TableName.VALID_TABLE_QUALIFIER_REGEX,</span> |
| <span class="source-line-no">073</span><span id="line-73"> RegionInfoBuilder.ENCODED_REGION_NAME_REGEX, StoreFileInfo.HFILE_NAME_REGEX);</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> /** Define the HFile Link name parser in the form of: table=region-hfile */</span> |
| <span class="source-line-no">076</span><span id="line-76"> public static final Pattern LINK_NAME_PATTERN =</span> |
| <span class="source-line-no">077</span><span id="line-77"> Pattern.compile(String.format("^(?:(%s)(?:\\=))?(%s)=(%s)-(%s)$",</span> |
| <span class="source-line-no">078</span><span id="line-78"> TableName.VALID_NAMESPACE_REGEX, TableName.VALID_TABLE_QUALIFIER_REGEX,</span> |
| <span class="source-line-no">079</span><span id="line-79"> RegionInfoBuilder.ENCODED_REGION_NAME_REGEX, StoreFileInfo.HFILE_NAME_REGEX));</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> /**</span> |
| <span class="source-line-no">082</span><span id="line-82"> * The pattern should be used for hfile and reference links that can be found in</span> |
| <span class="source-line-no">083</span><span id="line-83"> * /hbase/table/region/family/</span> |
| <span class="source-line-no">084</span><span id="line-84"> */</span> |
| <span class="source-line-no">085</span><span id="line-85"> private static final Pattern REF_OR_HFILE_LINK_PATTERN =</span> |
| <span class="source-line-no">086</span><span id="line-86"> Pattern.compile(String.format("^(?:(%s)(?:=))?(%s)=(%s)-(.+)$", TableName.VALID_NAMESPACE_REGEX,</span> |
| <span class="source-line-no">087</span><span id="line-87"> TableName.VALID_TABLE_QUALIFIER_REGEX, RegionInfoBuilder.ENCODED_REGION_NAME_REGEX));</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> private final Path archivePath;</span> |
| <span class="source-line-no">090</span><span id="line-90"> private final Path originPath;</span> |
| <span class="source-line-no">091</span><span id="line-91"> private final Path mobPath;</span> |
| <span class="source-line-no">092</span><span id="line-92"> private final Path tempPath;</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> /**</span> |
| <span class="source-line-no">095</span><span id="line-95"> * Dead simple hfile link constructor</span> |
| <span class="source-line-no">096</span><span id="line-96"> */</span> |
| <span class="source-line-no">097</span><span id="line-97"> public HFileLink(final Path originPath, final Path tempPath, final Path mobPath,</span> |
| <span class="source-line-no">098</span><span id="line-98"> final Path archivePath) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> this.tempPath = tempPath;</span> |
| <span class="source-line-no">100</span><span id="line-100"> this.originPath = originPath;</span> |
| <span class="source-line-no">101</span><span id="line-101"> this.mobPath = mobPath;</span> |
| <span class="source-line-no">102</span><span id="line-102"> this.archivePath = archivePath;</span> |
| <span class="source-line-no">103</span><span id="line-103"> setLocations(originPath, archivePath, tempPath, mobPath);</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> /**</span> |
| <span class="source-line-no">107</span><span id="line-107"> * @param conf {@link Configuration} from which to extract specific archive locations</span> |
| <span class="source-line-no">108</span><span id="line-108"> * @param hFileLinkPattern The path ending with a HFileLink pattern. (table=region-hfile)</span> |
| <span class="source-line-no">109</span><span id="line-109"> * @throws IOException on unexpected error.</span> |
| <span class="source-line-no">110</span><span id="line-110"> */</span> |
| <span class="source-line-no">111</span><span id="line-111"> public static final HFileLink buildFromHFileLinkPattern(Configuration conf, Path hFileLinkPattern)</span> |
| <span class="source-line-no">112</span><span id="line-112"> throws IOException {</span> |
| <span class="source-line-no">113</span><span id="line-113"> return buildFromHFileLinkPattern(CommonFSUtils.getRootDir(conf),</span> |
| <span class="source-line-no">114</span><span id="line-114"> HFileArchiveUtil.getArchivePath(conf), hFileLinkPattern);</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"></span> |
| <span class="source-line-no">117</span><span id="line-117"> /**</span> |
| <span class="source-line-no">118</span><span id="line-118"> * @param rootDir Path to the root directory where hbase files are stored</span> |
| <span class="source-line-no">119</span><span id="line-119"> * @param archiveDir Path to the hbase archive directory</span> |
| <span class="source-line-no">120</span><span id="line-120"> * @param hFileLinkPattern The path of the HFile Link.</span> |
| <span class="source-line-no">121</span><span id="line-121"> */</span> |
| <span class="source-line-no">122</span><span id="line-122"> public final static HFileLink buildFromHFileLinkPattern(final Path rootDir, final Path archiveDir,</span> |
| <span class="source-line-no">123</span><span id="line-123"> final Path hFileLinkPattern) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> Path hfilePath = getHFileLinkPatternRelativePath(hFileLinkPattern);</span> |
| <span class="source-line-no">125</span><span id="line-125"> Path tempPath = new Path(new Path(rootDir, HConstants.HBASE_TEMP_DIRECTORY), hfilePath);</span> |
| <span class="source-line-no">126</span><span id="line-126"> Path originPath = new Path(rootDir, hfilePath);</span> |
| <span class="source-line-no">127</span><span id="line-127"> Path mobPath = new Path(new Path(rootDir, MobConstants.MOB_DIR_NAME), hfilePath);</span> |
| <span class="source-line-no">128</span><span id="line-128"> Path archivePath = new Path(archiveDir, hfilePath);</span> |
| <span class="source-line-no">129</span><span id="line-129"> return new HFileLink(originPath, tempPath, mobPath, archivePath);</span> |
| <span class="source-line-no">130</span><span id="line-130"> }</span> |
| <span class="source-line-no">131</span><span id="line-131"></span> |
| <span class="source-line-no">132</span><span id="line-132"> /**</span> |
| <span class="source-line-no">133</span><span id="line-133"> * Create an HFileLink relative path for the table/region/family/hfile location</span> |
| <span class="source-line-no">134</span><span id="line-134"> * @param table Table name</span> |
| <span class="source-line-no">135</span><span id="line-135"> * @param region Region Name</span> |
| <span class="source-line-no">136</span><span id="line-136"> * @param family Family Name</span> |
| <span class="source-line-no">137</span><span id="line-137"> * @param hfile HFile Name</span> |
| <span class="source-line-no">138</span><span id="line-138"> * @return the relative Path to open the specified table/region/family/hfile link</span> |
| <span class="source-line-no">139</span><span id="line-139"> */</span> |
| <span class="source-line-no">140</span><span id="line-140"> public static Path createPath(final TableName table, final String region, final String family,</span> |
| <span class="source-line-no">141</span><span id="line-141"> final String hfile) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> if (HFileLink.isHFileLink(hfile)) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> return new Path(family, hfile);</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"> return new Path(family, HFileLink.createHFileLinkName(table, region, hfile));</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> /**</span> |
| <span class="source-line-no">149</span><span id="line-149"> * Create an HFileLink instance from table/region/family/hfile location</span> |
| <span class="source-line-no">150</span><span id="line-150"> * @param conf {@link Configuration} from which to extract specific archive locations</span> |
| <span class="source-line-no">151</span><span id="line-151"> * @param table Table name</span> |
| <span class="source-line-no">152</span><span id="line-152"> * @param region Region Name</span> |
| <span class="source-line-no">153</span><span id="line-153"> * @param family Family Name</span> |
| <span class="source-line-no">154</span><span id="line-154"> * @param hfile HFile Name</span> |
| <span class="source-line-no">155</span><span id="line-155"> * @return Link to the file with the specified table/region/family/hfile location</span> |
| <span class="source-line-no">156</span><span id="line-156"> * @throws IOException on unexpected error.</span> |
| <span class="source-line-no">157</span><span id="line-157"> */</span> |
| <span class="source-line-no">158</span><span id="line-158"> public static HFileLink build(final Configuration conf, final TableName table,</span> |
| <span class="source-line-no">159</span><span id="line-159"> final String region, final String family, final String hfile) throws IOException {</span> |
| <span class="source-line-no">160</span><span id="line-160"> return HFileLink.buildFromHFileLinkPattern(conf, createPath(table, region, family, hfile));</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> /** Returns the origin path of the hfile. */</span> |
| <span class="source-line-no">164</span><span id="line-164"> public Path getOriginPath() {</span> |
| <span class="source-line-no">165</span><span id="line-165"> return this.originPath;</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> /** Returns the path of the archived hfile. */</span> |
| <span class="source-line-no">169</span><span id="line-169"> public Path getArchivePath() {</span> |
| <span class="source-line-no">170</span><span id="line-170"> return this.archivePath;</span> |
| <span class="source-line-no">171</span><span id="line-171"> }</span> |
| <span class="source-line-no">172</span><span id="line-172"></span> |
| <span class="source-line-no">173</span><span id="line-173"> /** Returns the path of the mob hfiles. */</span> |
| <span class="source-line-no">174</span><span id="line-174"> public Path getMobPath() {</span> |
| <span class="source-line-no">175</span><span id="line-175"> return this.mobPath;</span> |
| <span class="source-line-no">176</span><span id="line-176"> }</span> |
| <span class="source-line-no">177</span><span id="line-177"></span> |
| <span class="source-line-no">178</span><span id="line-178"> /**</span> |
| <span class="source-line-no">179</span><span id="line-179"> * @param path Path to check.</span> |
| <span class="source-line-no">180</span><span id="line-180"> * @return True if the path is a HFileLink.</span> |
| <span class="source-line-no">181</span><span id="line-181"> */</span> |
| <span class="source-line-no">182</span><span id="line-182"> public static boolean isHFileLink(final Path path) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> return isHFileLink(path.getName());</span> |
| <span class="source-line-no">184</span><span id="line-184"> }</span> |
| <span class="source-line-no">185</span><span id="line-185"></span> |
| <span class="source-line-no">186</span><span id="line-186"> /**</span> |
| <span class="source-line-no">187</span><span id="line-187"> * @param fileName File name to check.</span> |
| <span class="source-line-no">188</span><span id="line-188"> * @return True if the path is a HFileLink.</span> |
| <span class="source-line-no">189</span><span id="line-189"> */</span> |
| <span class="source-line-no">190</span><span id="line-190"> public static boolean isHFileLink(String fileName) {</span> |
| <span class="source-line-no">191</span><span id="line-191"> Matcher m = LINK_NAME_PATTERN.matcher(fileName);</span> |
| <span class="source-line-no">192</span><span id="line-192"> if (!m.matches()) {</span> |
| <span class="source-line-no">193</span><span id="line-193"> return false;</span> |
| <span class="source-line-no">194</span><span id="line-194"> }</span> |
| <span class="source-line-no">195</span><span id="line-195"> return m.groupCount() > 2 && m.group(4) != null && m.group(3) != null && m.group(2) != null;</span> |
| <span class="source-line-no">196</span><span id="line-196"> }</span> |
| <span class="source-line-no">197</span><span id="line-197"></span> |
| <span class="source-line-no">198</span><span id="line-198"> /**</span> |
| <span class="source-line-no">199</span><span id="line-199"> * Convert a HFileLink path to a table relative path. e.g. the link:</span> |
| <span class="source-line-no">200</span><span id="line-200"> * /hbase/test/0123/cf/testtb=4567-abcd becomes: /hbase/testtb/4567/cf/abcd</span> |
| <span class="source-line-no">201</span><span id="line-201"> * @param path HFileLink path</span> |
| <span class="source-line-no">202</span><span id="line-202"> * @return Relative table path</span> |
| <span class="source-line-no">203</span><span id="line-203"> * @throws IOException on unexpected error.</span> |
| <span class="source-line-no">204</span><span id="line-204"> */</span> |
| <span class="source-line-no">205</span><span id="line-205"> private static Path getHFileLinkPatternRelativePath(final Path path) {</span> |
| <span class="source-line-no">206</span><span id="line-206"> // table=region-hfile</span> |
| <span class="source-line-no">207</span><span id="line-207"> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(path.getName());</span> |
| <span class="source-line-no">208</span><span id="line-208"> if (!m.matches()) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> throw new IllegalArgumentException(path.getName() + " is not a valid HFileLink pattern!");</span> |
| <span class="source-line-no">210</span><span id="line-210"> }</span> |
| <span class="source-line-no">211</span><span id="line-211"></span> |
| <span class="source-line-no">212</span><span id="line-212"> // Convert the HFileLink name into a real table/region/cf/hfile path.</span> |
| <span class="source-line-no">213</span><span id="line-213"> TableName tableName = TableName.valueOf(m.group(1), m.group(2));</span> |
| <span class="source-line-no">214</span><span id="line-214"> String regionName = m.group(3);</span> |
| <span class="source-line-no">215</span><span id="line-215"> String hfileName = m.group(4);</span> |
| <span class="source-line-no">216</span><span id="line-216"> String familyName = path.getParent().getName();</span> |
| <span class="source-line-no">217</span><span id="line-217"> Path tableDir = CommonFSUtils.getTableDir(new Path("./"), tableName);</span> |
| <span class="source-line-no">218</span><span id="line-218"> return new Path(tableDir, new Path(regionName, new Path(familyName, hfileName)));</span> |
| <span class="source-line-no">219</span><span id="line-219"> }</span> |
| <span class="source-line-no">220</span><span id="line-220"></span> |
| <span class="source-line-no">221</span><span id="line-221"> /**</span> |
| <span class="source-line-no">222</span><span id="line-222"> * Get the HFile name of the referenced link</span> |
| <span class="source-line-no">223</span><span id="line-223"> * @param fileName HFileLink file name</span> |
| <span class="source-line-no">224</span><span id="line-224"> * @return the name of the referenced HFile</span> |
| <span class="source-line-no">225</span><span id="line-225"> */</span> |
| <span class="source-line-no">226</span><span id="line-226"> public static String getReferencedHFileName(final String fileName) {</span> |
| <span class="source-line-no">227</span><span id="line-227"> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(fileName);</span> |
| <span class="source-line-no">228</span><span id="line-228"> if (!m.matches()) {</span> |
| <span class="source-line-no">229</span><span id="line-229"> throw new IllegalArgumentException(fileName + " is not a valid HFileLink name!");</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"> return (m.group(4));</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> /**</span> |
| <span class="source-line-no">235</span><span id="line-235"> * Get the Region name of the referenced link</span> |
| <span class="source-line-no">236</span><span id="line-236"> * @param fileName HFileLink file name</span> |
| <span class="source-line-no">237</span><span id="line-237"> * @return the name of the referenced Region</span> |
| <span class="source-line-no">238</span><span id="line-238"> */</span> |
| <span class="source-line-no">239</span><span id="line-239"> public static String getReferencedRegionName(final String fileName) {</span> |
| <span class="source-line-no">240</span><span id="line-240"> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(fileName);</span> |
| <span class="source-line-no">241</span><span id="line-241"> if (!m.matches()) {</span> |
| <span class="source-line-no">242</span><span id="line-242"> throw new IllegalArgumentException(fileName + " is not a valid HFileLink name!");</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</span> |
| <span class="source-line-no">244</span><span id="line-244"> return (m.group(3));</span> |
| <span class="source-line-no">245</span><span id="line-245"> }</span> |
| <span class="source-line-no">246</span><span id="line-246"></span> |
| <span class="source-line-no">247</span><span id="line-247"> /**</span> |
| <span class="source-line-no">248</span><span id="line-248"> * Get the Table name of the referenced link</span> |
| <span class="source-line-no">249</span><span id="line-249"> * @param fileName HFileLink file name</span> |
| <span class="source-line-no">250</span><span id="line-250"> * @return the name of the referenced Table</span> |
| <span class="source-line-no">251</span><span id="line-251"> */</span> |
| <span class="source-line-no">252</span><span id="line-252"> public static TableName getReferencedTableName(final String fileName) {</span> |
| <span class="source-line-no">253</span><span id="line-253"> Matcher m = REF_OR_HFILE_LINK_PATTERN.matcher(fileName);</span> |
| <span class="source-line-no">254</span><span id="line-254"> if (!m.matches()) {</span> |
| <span class="source-line-no">255</span><span id="line-255"> throw new IllegalArgumentException(fileName + " is not a valid HFileLink name!");</span> |
| <span class="source-line-no">256</span><span id="line-256"> }</span> |
| <span class="source-line-no">257</span><span id="line-257"> return (TableName.valueOf(m.group(1), m.group(2)));</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"></span> |
| <span class="source-line-no">260</span><span id="line-260"> /**</span> |
| <span class="source-line-no">261</span><span id="line-261"> * Create a new HFileLink name</span> |
| <span class="source-line-no">262</span><span id="line-262"> * @param hfileRegionInfo - Linked HFile Region Info</span> |
| <span class="source-line-no">263</span><span id="line-263"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">264</span><span id="line-264"> * @return file name of the HFile Link</span> |
| <span class="source-line-no">265</span><span id="line-265"> */</span> |
| <span class="source-line-no">266</span><span id="line-266"> public static String createHFileLinkName(final RegionInfo hfileRegionInfo,</span> |
| <span class="source-line-no">267</span><span id="line-267"> final String hfileName) {</span> |
| <span class="source-line-no">268</span><span id="line-268"> return createHFileLinkName(hfileRegionInfo.getTable(), hfileRegionInfo.getEncodedName(),</span> |
| <span class="source-line-no">269</span><span id="line-269"> hfileName);</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"></span> |
| <span class="source-line-no">272</span><span id="line-272"> /**</span> |
| <span class="source-line-no">273</span><span id="line-273"> * Create a new HFileLink name</span> |
| <span class="source-line-no">274</span><span id="line-274"> * @param tableName - Linked HFile table name</span> |
| <span class="source-line-no">275</span><span id="line-275"> * @param regionName - Linked HFile region name</span> |
| <span class="source-line-no">276</span><span id="line-276"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">277</span><span id="line-277"> * @return file name of the HFile Link</span> |
| <span class="source-line-no">278</span><span id="line-278"> */</span> |
| <span class="source-line-no">279</span><span id="line-279"> public static String createHFileLinkName(final TableName tableName, final String regionName,</span> |
| <span class="source-line-no">280</span><span id="line-280"> final String hfileName) {</span> |
| <span class="source-line-no">281</span><span id="line-281"> String s = String.format("%s=%s-%s",</span> |
| <span class="source-line-no">282</span><span id="line-282"> tableName.getNameAsString().replace(TableName.NAMESPACE_DELIM, '='), regionName, hfileName);</span> |
| <span class="source-line-no">283</span><span id="line-283"> return s;</span> |
| <span class="source-line-no">284</span><span id="line-284"> }</span> |
| <span class="source-line-no">285</span><span id="line-285"></span> |
| <span class="source-line-no">286</span><span id="line-286"> /**</span> |
| <span class="source-line-no">287</span><span id="line-287"> * Create a new HFileLink</span> |
| <span class="source-line-no">288</span><span id="line-288"> * <p></span> |
| <span class="source-line-no">289</span><span id="line-289"> * It also adds a back-reference to the hfile back-reference directory to simplify the</span> |
| <span class="source-line-no">290</span><span id="line-290"> * reference-count and the cleaning process.</span> |
| <span class="source-line-no">291</span><span id="line-291"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">292</span><span id="line-292"> * @param fs {@link FileSystem} on which to write the HFileLink</span> |
| <span class="source-line-no">293</span><span id="line-293"> * @param dstFamilyPath - Destination path (table/region/cf/)</span> |
| <span class="source-line-no">294</span><span id="line-294"> * @param hfileRegionInfo - Linked HFile Region Info</span> |
| <span class="source-line-no">295</span><span id="line-295"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">296</span><span id="line-296"> * @return the file link name.</span> |
| <span class="source-line-no">297</span><span id="line-297"> * @throws IOException on file or parent directory creation failure.</span> |
| <span class="source-line-no">298</span><span id="line-298"> */</span> |
| <span class="source-line-no">299</span><span id="line-299"> public static String create(final Configuration conf, final FileSystem fs,</span> |
| <span class="source-line-no">300</span><span id="line-300"> final Path dstFamilyPath, final RegionInfo hfileRegionInfo, final String hfileName)</span> |
| <span class="source-line-no">301</span><span id="line-301"> throws IOException {</span> |
| <span class="source-line-no">302</span><span id="line-302"> return create(conf, fs, dstFamilyPath, hfileRegionInfo, hfileName, true);</span> |
| <span class="source-line-no">303</span><span id="line-303"> }</span> |
| <span class="source-line-no">304</span><span id="line-304"></span> |
| <span class="source-line-no">305</span><span id="line-305"> /**</span> |
| <span class="source-line-no">306</span><span id="line-306"> * Create a new HFileLink</span> |
| <span class="source-line-no">307</span><span id="line-307"> * <p></span> |
| <span class="source-line-no">308</span><span id="line-308"> * It also adds a back-reference to the hfile back-reference directory to simplify the</span> |
| <span class="source-line-no">309</span><span id="line-309"> * reference-count and the cleaning process.</span> |
| <span class="source-line-no">310</span><span id="line-310"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">311</span><span id="line-311"> * @param fs {@link FileSystem} on which to write the HFileLink</span> |
| <span class="source-line-no">312</span><span id="line-312"> * @param dstFamilyPath - Destination path (table/region/cf/)</span> |
| <span class="source-line-no">313</span><span id="line-313"> * @param hfileRegionInfo - Linked HFile Region Info</span> |
| <span class="source-line-no">314</span><span id="line-314"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">315</span><span id="line-315"> * @param createBackRef - Whether back reference should be created. Defaults to true.</span> |
| <span class="source-line-no">316</span><span id="line-316"> * @return the file link name.</span> |
| <span class="source-line-no">317</span><span id="line-317"> * @throws IOException on file or parent directory creation failure.</span> |
| <span class="source-line-no">318</span><span id="line-318"> */</span> |
| <span class="source-line-no">319</span><span id="line-319"> public static String create(final Configuration conf, final FileSystem fs,</span> |
| <span class="source-line-no">320</span><span id="line-320"> final Path dstFamilyPath, final RegionInfo hfileRegionInfo, final String hfileName,</span> |
| <span class="source-line-no">321</span><span id="line-321"> final boolean createBackRef) throws IOException {</span> |
| <span class="source-line-no">322</span><span id="line-322"> TableName linkedTable = hfileRegionInfo.getTable();</span> |
| <span class="source-line-no">323</span><span id="line-323"> String linkedRegion = hfileRegionInfo.getEncodedName();</span> |
| <span class="source-line-no">324</span><span id="line-324"> return create(conf, fs, dstFamilyPath, linkedTable, linkedRegion, hfileName, createBackRef);</span> |
| <span class="source-line-no">325</span><span id="line-325"> }</span> |
| <span class="source-line-no">326</span><span id="line-326"></span> |
| <span class="source-line-no">327</span><span id="line-327"> /**</span> |
| <span class="source-line-no">328</span><span id="line-328"> * Create a new HFileLink</span> |
| <span class="source-line-no">329</span><span id="line-329"> * <p></span> |
| <span class="source-line-no">330</span><span id="line-330"> * It also adds a back-reference to the hfile back-reference directory to simplify the</span> |
| <span class="source-line-no">331</span><span id="line-331"> * reference-count and the cleaning process.</span> |
| <span class="source-line-no">332</span><span id="line-332"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">333</span><span id="line-333"> * @param fs {@link FileSystem} on which to write the HFileLink</span> |
| <span class="source-line-no">334</span><span id="line-334"> * @param dstFamilyPath - Destination path (table/region/cf/)</span> |
| <span class="source-line-no">335</span><span id="line-335"> * @param linkedTable - Linked Table Name</span> |
| <span class="source-line-no">336</span><span id="line-336"> * @param linkedRegion - Linked Region Name</span> |
| <span class="source-line-no">337</span><span id="line-337"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">338</span><span id="line-338"> * @return the file link name.</span> |
| <span class="source-line-no">339</span><span id="line-339"> * @throws IOException on file or parent directory creation failure.</span> |
| <span class="source-line-no">340</span><span id="line-340"> */</span> |
| <span class="source-line-no">341</span><span id="line-341"> public static String create(final Configuration conf, final FileSystem fs,</span> |
| <span class="source-line-no">342</span><span id="line-342"> final Path dstFamilyPath, final TableName linkedTable, final String linkedRegion,</span> |
| <span class="source-line-no">343</span><span id="line-343"> final String hfileName) throws IOException {</span> |
| <span class="source-line-no">344</span><span id="line-344"> return create(conf, fs, dstFamilyPath, linkedTable, linkedRegion, hfileName, true);</span> |
| <span class="source-line-no">345</span><span id="line-345"> }</span> |
| <span class="source-line-no">346</span><span id="line-346"></span> |
| <span class="source-line-no">347</span><span id="line-347"> /**</span> |
| <span class="source-line-no">348</span><span id="line-348"> * Create a new HFileLink. In the event of link creation failure, this method throws an</span> |
| <span class="source-line-no">349</span><span id="line-349"> * IOException, so that the calling upper laying can decide on how to proceed with this.</span> |
| <span class="source-line-no">350</span><span id="line-350"> * <p></span> |
| <span class="source-line-no">351</span><span id="line-351"> * It also adds a back-reference to the hfile back-reference directory to simplify the</span> |
| <span class="source-line-no">352</span><span id="line-352"> * reference-count and the cleaning process.</span> |
| <span class="source-line-no">353</span><span id="line-353"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">354</span><span id="line-354"> * @param fs {@link FileSystem} on which to write the HFileLink</span> |
| <span class="source-line-no">355</span><span id="line-355"> * @param dstFamilyPath - Destination path (table/region/cf/)</span> |
| <span class="source-line-no">356</span><span id="line-356"> * @param linkedTable - Linked Table Name</span> |
| <span class="source-line-no">357</span><span id="line-357"> * @param linkedRegion - Linked Region Name</span> |
| <span class="source-line-no">358</span><span id="line-358"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">359</span><span id="line-359"> * @param createBackRef - Whether back reference should be created. Defaults to true.</span> |
| <span class="source-line-no">360</span><span id="line-360"> * @return the file link name.</span> |
| <span class="source-line-no">361</span><span id="line-361"> * @throws IOException on file or parent directory creation failure.</span> |
| <span class="source-line-no">362</span><span id="line-362"> */</span> |
| <span class="source-line-no">363</span><span id="line-363"> public static String create(final Configuration conf, final FileSystem fs,</span> |
| <span class="source-line-no">364</span><span id="line-364"> final Path dstFamilyPath, final TableName linkedTable, final String linkedRegion,</span> |
| <span class="source-line-no">365</span><span id="line-365"> final String hfileName, final boolean createBackRef) throws IOException {</span> |
| <span class="source-line-no">366</span><span id="line-366"> String familyName = dstFamilyPath.getName();</span> |
| <span class="source-line-no">367</span><span id="line-367"> String regionName = dstFamilyPath.getParent().getName();</span> |
| <span class="source-line-no">368</span><span id="line-368"> String tableName =</span> |
| <span class="source-line-no">369</span><span id="line-369"> CommonFSUtils.getTableName(dstFamilyPath.getParent().getParent()).getNameAsString();</span> |
| <span class="source-line-no">370</span><span id="line-370"></span> |
| <span class="source-line-no">371</span><span id="line-371"> return create(conf, fs, dstFamilyPath, familyName, tableName, regionName, linkedTable,</span> |
| <span class="source-line-no">372</span><span id="line-372"> linkedRegion, hfileName, createBackRef);</span> |
| <span class="source-line-no">373</span><span id="line-373"> }</span> |
| <span class="source-line-no">374</span><span id="line-374"></span> |
| <span class="source-line-no">375</span><span id="line-375"> /**</span> |
| <span class="source-line-no">376</span><span id="line-376"> * Create a new HFileLink</span> |
| <span class="source-line-no">377</span><span id="line-377"> * <p></span> |
| <span class="source-line-no">378</span><span id="line-378"> * It also adds a back-reference to the hfile back-reference directory to simplify the</span> |
| <span class="source-line-no">379</span><span id="line-379"> * reference-count and the cleaning process.</span> |
| <span class="source-line-no">380</span><span id="line-380"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">381</span><span id="line-381"> * @param fs {@link FileSystem} on which to write the HFileLink</span> |
| <span class="source-line-no">382</span><span id="line-382"> * @param dstFamilyPath - Destination path (table/region/cf/)</span> |
| <span class="source-line-no">383</span><span id="line-383"> * @param dstTableName - Destination table name</span> |
| <span class="source-line-no">384</span><span id="line-384"> * @param dstRegionName - Destination region name</span> |
| <span class="source-line-no">385</span><span id="line-385"> * @param linkedTable - Linked Table Name</span> |
| <span class="source-line-no">386</span><span id="line-386"> * @param linkedRegion - Linked Region Name</span> |
| <span class="source-line-no">387</span><span id="line-387"> * @param hfileName - Linked HFile name</span> |
| <span class="source-line-no">388</span><span id="line-388"> * @param createBackRef - Whether back reference should be created. Defaults to true.</span> |
| <span class="source-line-no">389</span><span id="line-389"> * @return the file link name.</span> |
| <span class="source-line-no">390</span><span id="line-390"> * @throws IOException on file or parent directory creation failure</span> |
| <span class="source-line-no">391</span><span id="line-391"> */</span> |
| <span class="source-line-no">392</span><span id="line-392"> public static String create(final Configuration conf, final FileSystem fs,</span> |
| <span class="source-line-no">393</span><span id="line-393"> final Path dstFamilyPath, final String familyName, final String dstTableName,</span> |
| <span class="source-line-no">394</span><span id="line-394"> final String dstRegionName, final TableName linkedTable, final String linkedRegion,</span> |
| <span class="source-line-no">395</span><span id="line-395"> final String hfileName, final boolean createBackRef) throws IOException {</span> |
| <span class="source-line-no">396</span><span id="line-396"> String name = createHFileLinkName(linkedTable, linkedRegion, hfileName);</span> |
| <span class="source-line-no">397</span><span id="line-397"> String refName = createBackReferenceName(dstTableName, dstRegionName);</span> |
| <span class="source-line-no">398</span><span id="line-398"></span> |
| <span class="source-line-no">399</span><span id="line-399"> // Make sure the destination directory exists</span> |
| <span class="source-line-no">400</span><span id="line-400"> fs.mkdirs(dstFamilyPath);</span> |
| <span class="source-line-no">401</span><span id="line-401"></span> |
| <span class="source-line-no">402</span><span id="line-402"> // Make sure the FileLink reference directory exists</span> |
| <span class="source-line-no">403</span><span id="line-403"> Path archiveStoreDir =</span> |
| <span class="source-line-no">404</span><span id="line-404"> HFileArchiveUtil.getStoreArchivePath(conf, linkedTable, linkedRegion, familyName);</span> |
| <span class="source-line-no">405</span><span id="line-405"> Path backRefPath = null;</span> |
| <span class="source-line-no">406</span><span id="line-406"> if (createBackRef) {</span> |
| <span class="source-line-no">407</span><span id="line-407"> Path backRefssDir = getBackReferencesDir(archiveStoreDir, hfileName);</span> |
| <span class="source-line-no">408</span><span id="line-408"> fs.mkdirs(backRefssDir);</span> |
| <span class="source-line-no">409</span><span id="line-409"></span> |
| <span class="source-line-no">410</span><span id="line-410"> // Create the reference for the link</span> |
| <span class="source-line-no">411</span><span id="line-411"> backRefPath = new Path(backRefssDir, refName);</span> |
| <span class="source-line-no">412</span><span id="line-412"> fs.createNewFile(backRefPath);</span> |
| <span class="source-line-no">413</span><span id="line-413"> }</span> |
| <span class="source-line-no">414</span><span id="line-414"> try {</span> |
| <span class="source-line-no">415</span><span id="line-415"> // Create the link</span> |
| <span class="source-line-no">416</span><span id="line-416"> if (fs.createNewFile(new Path(dstFamilyPath, name))) {</span> |
| <span class="source-line-no">417</span><span id="line-417"> return name;</span> |
| <span class="source-line-no">418</span><span id="line-418"> }</span> |
| <span class="source-line-no">419</span><span id="line-419"> } catch (IOException e) {</span> |
| <span class="source-line-no">420</span><span id="line-420"> LOG.error("couldn't create the link=" + name + " for " + dstFamilyPath, e);</span> |
| <span class="source-line-no">421</span><span id="line-421"> // Revert the reference if the link creation failed</span> |
| <span class="source-line-no">422</span><span id="line-422"> if (createBackRef) {</span> |
| <span class="source-line-no">423</span><span id="line-423"> fs.delete(backRefPath, false);</span> |
| <span class="source-line-no">424</span><span id="line-424"> }</span> |
| <span class="source-line-no">425</span><span id="line-425"> throw e;</span> |
| <span class="source-line-no">426</span><span id="line-426"> }</span> |
| <span class="source-line-no">427</span><span id="line-427"> throw new IOException(</span> |
| <span class="source-line-no">428</span><span id="line-428"> "File link=" + name + " already exists under " + dstFamilyPath + " folder.");</span> |
| <span class="source-line-no">429</span><span id="line-429"> }</span> |
| <span class="source-line-no">430</span><span id="line-430"></span> |
| <span class="source-line-no">431</span><span id="line-431"> /**</span> |
| <span class="source-line-no">432</span><span id="line-432"> * Create a new HFileLink starting from a hfileLink name</span> |
| <span class="source-line-no">433</span><span id="line-433"> * <p></span> |
| <span class="source-line-no">434</span><span id="line-434"> * It also adds a back-reference to the hfile back-reference directory to simplify the</span> |
| <span class="source-line-no">435</span><span id="line-435"> * reference-count and the cleaning process.</span> |
| <span class="source-line-no">436</span><span id="line-436"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">437</span><span id="line-437"> * @param fs {@link FileSystem} on which to write the HFileLink</span> |
| <span class="source-line-no">438</span><span id="line-438"> * @param dstFamilyPath - Destination path (table/region/cf/)</span> |
| <span class="source-line-no">439</span><span id="line-439"> * @param hfileLinkName - HFileLink name (it contains hfile-region-table)</span> |
| <span class="source-line-no">440</span><span id="line-440"> * @param createBackRef - Whether back reference should be created. Defaults to true.</span> |
| <span class="source-line-no">441</span><span id="line-441"> * @return the file link name.</span> |
| <span class="source-line-no">442</span><span id="line-442"> * @throws IOException on file or parent directory creation failure.</span> |
| <span class="source-line-no">443</span><span id="line-443"> */</span> |
| <span class="source-line-no">444</span><span id="line-444"> public static String createFromHFileLink(final Configuration conf, final FileSystem fs,</span> |
| <span class="source-line-no">445</span><span id="line-445"> final Path dstFamilyPath, final String hfileLinkName, final boolean createBackRef)</span> |
| <span class="source-line-no">446</span><span id="line-446"> throws IOException {</span> |
| <span class="source-line-no">447</span><span id="line-447"> Matcher m = LINK_NAME_PATTERN.matcher(hfileLinkName);</span> |
| <span class="source-line-no">448</span><span id="line-448"> if (!m.matches()) {</span> |
| <span class="source-line-no">449</span><span id="line-449"> throw new IllegalArgumentException(hfileLinkName + " is not a valid HFileLink name!");</span> |
| <span class="source-line-no">450</span><span id="line-450"> }</span> |
| <span class="source-line-no">451</span><span id="line-451"> return create(conf, fs, dstFamilyPath, TableName.valueOf(m.group(1), m.group(2)), m.group(3),</span> |
| <span class="source-line-no">452</span><span id="line-452"> m.group(4), createBackRef);</span> |
| <span class="source-line-no">453</span><span id="line-453"> }</span> |
| <span class="source-line-no">454</span><span id="line-454"></span> |
| <span class="source-line-no">455</span><span id="line-455"> /**</span> |
| <span class="source-line-no">456</span><span id="line-456"> * Create the back reference name</span> |
| <span class="source-line-no">457</span><span id="line-457"> */</span> |
| <span class="source-line-no">458</span><span id="line-458"> // package-private for testing</span> |
| <span class="source-line-no">459</span><span id="line-459"> static String createBackReferenceName(final String tableNameStr, final String regionName) {</span> |
| <span class="source-line-no">460</span><span id="line-460"></span> |
| <span class="source-line-no">461</span><span id="line-461"> return regionName + "." + tableNameStr.replace(TableName.NAMESPACE_DELIM, '=');</span> |
| <span class="source-line-no">462</span><span id="line-462"> }</span> |
| <span class="source-line-no">463</span><span id="line-463"></span> |
| <span class="source-line-no">464</span><span id="line-464"> /**</span> |
| <span class="source-line-no">465</span><span id="line-465"> * Get the full path of the HFile referenced by the back reference</span> |
| <span class="source-line-no">466</span><span id="line-466"> * @param rootDir root hbase directory</span> |
| <span class="source-line-no">467</span><span id="line-467"> * @param linkRefPath Link Back Reference path</span> |
| <span class="source-line-no">468</span><span id="line-468"> * @return full path of the referenced hfile</span> |
| <span class="source-line-no">469</span><span id="line-469"> */</span> |
| <span class="source-line-no">470</span><span id="line-470"> public static Path getHFileFromBackReference(final Path rootDir, final Path linkRefPath) {</span> |
| <span class="source-line-no">471</span><span id="line-471"> Pair<TableName, String> p = parseBackReferenceName(linkRefPath.getName());</span> |
| <span class="source-line-no">472</span><span id="line-472"> TableName linkTableName = p.getFirst();</span> |
| <span class="source-line-no">473</span><span id="line-473"> String linkRegionName = p.getSecond();</span> |
| <span class="source-line-no">474</span><span id="line-474"></span> |
| <span class="source-line-no">475</span><span id="line-475"> String hfileName = getBackReferenceFileName(linkRefPath.getParent());</span> |
| <span class="source-line-no">476</span><span id="line-476"> Path familyPath = linkRefPath.getParent().getParent();</span> |
| <span class="source-line-no">477</span><span id="line-477"> Path regionPath = familyPath.getParent();</span> |
| <span class="source-line-no">478</span><span id="line-478"> Path tablePath = regionPath.getParent();</span> |
| <span class="source-line-no">479</span><span id="line-479"></span> |
| <span class="source-line-no">480</span><span id="line-480"> String linkName =</span> |
| <span class="source-line-no">481</span><span id="line-481"> createHFileLinkName(CommonFSUtils.getTableName(tablePath), regionPath.getName(), hfileName);</span> |
| <span class="source-line-no">482</span><span id="line-482"> Path linkTableDir = CommonFSUtils.getTableDir(rootDir, linkTableName);</span> |
| <span class="source-line-no">483</span><span id="line-483"> Path regionDir = HRegion.getRegionDir(linkTableDir, linkRegionName);</span> |
| <span class="source-line-no">484</span><span id="line-484"> return new Path(new Path(regionDir, familyPath.getName()), linkName);</span> |
| <span class="source-line-no">485</span><span id="line-485"> }</span> |
| <span class="source-line-no">486</span><span id="line-486"></span> |
| <span class="source-line-no">487</span><span id="line-487"> public static Pair<TableName, String> parseBackReferenceName(String name) {</span> |
| <span class="source-line-no">488</span><span id="line-488"> int separatorIndex = name.indexOf('.');</span> |
| <span class="source-line-no">489</span><span id="line-489"> String linkRegionName = name.substring(0, separatorIndex);</span> |
| <span class="source-line-no">490</span><span id="line-490"> String tableSubstr = name.substring(separatorIndex + 1).replace('=', TableName.NAMESPACE_DELIM);</span> |
| <span class="source-line-no">491</span><span id="line-491"> TableName linkTableName = TableName.valueOf(tableSubstr);</span> |
| <span class="source-line-no">492</span><span id="line-492"> return new Pair<>(linkTableName, linkRegionName);</span> |
| <span class="source-line-no">493</span><span id="line-493"> }</span> |
| <span class="source-line-no">494</span><span id="line-494"></span> |
| <span class="source-line-no">495</span><span id="line-495"> /**</span> |
| <span class="source-line-no">496</span><span id="line-496"> * Get the full path of the HFile referenced by the back reference</span> |
| <span class="source-line-no">497</span><span id="line-497"> * @param conf {@link Configuration} to read for the archive directory name</span> |
| <span class="source-line-no">498</span><span id="line-498"> * @param linkRefPath Link Back Reference path</span> |
| <span class="source-line-no">499</span><span id="line-499"> * @return full path of the referenced hfile</span> |
| <span class="source-line-no">500</span><span id="line-500"> * @throws IOException on unexpected error.</span> |
| <span class="source-line-no">501</span><span id="line-501"> */</span> |
| <span class="source-line-no">502</span><span id="line-502"> public static Path getHFileFromBackReference(final Configuration conf, final Path linkRefPath)</span> |
| <span class="source-line-no">503</span><span id="line-503"> throws IOException {</span> |
| <span class="source-line-no">504</span><span id="line-504"> return getHFileFromBackReference(CommonFSUtils.getRootDir(conf), linkRefPath);</span> |
| <span class="source-line-no">505</span><span id="line-505"> }</span> |
| <span class="source-line-no">506</span><span id="line-506"></span> |
| <span class="source-line-no">507</span><span id="line-507">}</span> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
