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| <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.client;</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.nio.ByteBuffer;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.ArrayList;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.HashMap;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.List;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Map;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.NavigableSet;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.Set;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.TreeMap;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.TreeSet;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.stream.Collectors;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.filter.Filter;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.io.TimeRange;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.security.access.Permission;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.security.visibility.Authorizations;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.Logger;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">/**</span> |
| <span class="source-line-no">042</span><span id="line-42"> * Used to perform Get operations on a single row.</span> |
| <span class="source-line-no">043</span><span id="line-43"> * <p></span> |
| <span class="source-line-no">044</span><span id="line-44"> * To get everything for a row, instantiate a Get object with the row to get. To further narrow the</span> |
| <span class="source-line-no">045</span><span id="line-45"> * scope of what to Get, use the methods below.</span> |
| <span class="source-line-no">046</span><span id="line-46"> * <p></span> |
| <span class="source-line-no">047</span><span id="line-47"> * To get all columns from specific families, execute {@link #addFamily(byte[]) addFamily} for each</span> |
| <span class="source-line-no">048</span><span id="line-48"> * family to retrieve.</span> |
| <span class="source-line-no">049</span><span id="line-49"> * <p></span> |
| <span class="source-line-no">050</span><span id="line-50"> * To get specific columns, execute {@link #addColumn(byte[], byte[]) addColumn} for each column to</span> |
| <span class="source-line-no">051</span><span id="line-51"> * retrieve.</span> |
| <span class="source-line-no">052</span><span id="line-52"> * <p></span> |
| <span class="source-line-no">053</span><span id="line-53"> * To only retrieve columns within a specific range of version timestamps, execute</span> |
| <span class="source-line-no">054</span><span id="line-54"> * {@link #setTimeRange(long, long) setTimeRange}.</span> |
| <span class="source-line-no">055</span><span id="line-55"> * <p></span> |
| <span class="source-line-no">056</span><span id="line-56"> * To only retrieve columns with a specific timestamp, execute {@link #setTimestamp(long)</span> |
| <span class="source-line-no">057</span><span id="line-57"> * setTimestamp}.</span> |
| <span class="source-line-no">058</span><span id="line-58"> * <p></span> |
| <span class="source-line-no">059</span><span id="line-59"> * To limit the number of versions of each column to be returned, execute {@link #readVersions(int)</span> |
| <span class="source-line-no">060</span><span id="line-60"> * readVersions}.</span> |
| <span class="source-line-no">061</span><span id="line-61"> * <p></span> |
| <span class="source-line-no">062</span><span id="line-62"> * To add a filter, call {@link #setFilter(Filter) setFilter}.</span> |
| <span class="source-line-no">063</span><span id="line-63"> */</span> |
| <span class="source-line-no">064</span><span id="line-64">@InterfaceAudience.Public</span> |
| <span class="source-line-no">065</span><span id="line-65">public class Get extends Query implements Row {</span> |
| <span class="source-line-no">066</span><span id="line-66"> private static final Logger LOG = LoggerFactory.getLogger(Get.class);</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> private byte[] row = null;</span> |
| <span class="source-line-no">069</span><span id="line-69"> private int maxVersions = 1;</span> |
| <span class="source-line-no">070</span><span id="line-70"> private boolean cacheBlocks = true;</span> |
| <span class="source-line-no">071</span><span id="line-71"> private int storeLimit = -1;</span> |
| <span class="source-line-no">072</span><span id="line-72"> private int storeOffset = 0;</span> |
| <span class="source-line-no">073</span><span id="line-73"> private TimeRange tr = TimeRange.allTime();</span> |
| <span class="source-line-no">074</span><span id="line-74"> private boolean checkExistenceOnly = false;</span> |
| <span class="source-line-no">075</span><span id="line-75"> private Map<byte[], NavigableSet<byte[]>> familyMap = new TreeMap<>(Bytes.BYTES_COMPARATOR);</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> /**</span> |
| <span class="source-line-no">078</span><span id="line-78"> * Create a Get operation for the specified row.</span> |
| <span class="source-line-no">079</span><span id="line-79"> * <p></span> |
| <span class="source-line-no">080</span><span id="line-80"> * If no further operations are done, this will get the latest version of all columns in all</span> |
| <span class="source-line-no">081</span><span id="line-81"> * families of the specified row.</span> |
| <span class="source-line-no">082</span><span id="line-82"> * @param row row key</span> |
| <span class="source-line-no">083</span><span id="line-83"> */</span> |
| <span class="source-line-no">084</span><span id="line-84"> public Get(byte[] row) {</span> |
| <span class="source-line-no">085</span><span id="line-85"> Mutation.checkRow(row);</span> |
| <span class="source-line-no">086</span><span id="line-86"> this.row = row;</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> /**</span> |
| <span class="source-line-no">090</span><span id="line-90"> * Copy-constructor</span> |
| <span class="source-line-no">091</span><span id="line-91"> */</span> |
| <span class="source-line-no">092</span><span id="line-92"> public Get(Get get) {</span> |
| <span class="source-line-no">093</span><span id="line-93"> this(get.getRow());</span> |
| <span class="source-line-no">094</span><span id="line-94"> // from Query</span> |
| <span class="source-line-no">095</span><span id="line-95"> this.setFilter(get.getFilter());</span> |
| <span class="source-line-no">096</span><span id="line-96"> this.setReplicaId(get.getReplicaId());</span> |
| <span class="source-line-no">097</span><span id="line-97"> this.setConsistency(get.getConsistency());</span> |
| <span class="source-line-no">098</span><span id="line-98"> // from Get</span> |
| <span class="source-line-no">099</span><span id="line-99"> this.cacheBlocks = get.getCacheBlocks();</span> |
| <span class="source-line-no">100</span><span id="line-100"> this.maxVersions = get.getMaxVersions();</span> |
| <span class="source-line-no">101</span><span id="line-101"> this.storeLimit = get.getMaxResultsPerColumnFamily();</span> |
| <span class="source-line-no">102</span><span id="line-102"> this.storeOffset = get.getRowOffsetPerColumnFamily();</span> |
| <span class="source-line-no">103</span><span id="line-103"> this.tr = get.getTimeRange();</span> |
| <span class="source-line-no">104</span><span id="line-104"> this.checkExistenceOnly = get.isCheckExistenceOnly();</span> |
| <span class="source-line-no">105</span><span id="line-105"> this.loadColumnFamiliesOnDemand = get.getLoadColumnFamiliesOnDemandValue();</span> |
| <span class="source-line-no">106</span><span id="line-106"> Map<byte[], NavigableSet<byte[]>> fams = get.getFamilyMap();</span> |
| <span class="source-line-no">107</span><span id="line-107"> for (Map.Entry<byte[], NavigableSet<byte[]>> entry : fams.entrySet()) {</span> |
| <span class="source-line-no">108</span><span id="line-108"> byte[] fam = entry.getKey();</span> |
| <span class="source-line-no">109</span><span id="line-109"> NavigableSet<byte[]> cols = entry.getValue();</span> |
| <span class="source-line-no">110</span><span id="line-110"> if (cols != null && cols.size() > 0) {</span> |
| <span class="source-line-no">111</span><span id="line-111"> for (byte[] col : cols) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> addColumn(fam, col);</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"> } else {</span> |
| <span class="source-line-no">115</span><span id="line-115"> addFamily(fam);</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"> for (Map.Entry<String, byte[]> attr : get.getAttributesMap().entrySet()) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> setAttribute(attr.getKey(), attr.getValue());</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"> for (Map.Entry<byte[], TimeRange> entry : get.getColumnFamilyTimeRange().entrySet()) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> TimeRange tr = entry.getValue();</span> |
| <span class="source-line-no">123</span><span id="line-123"> setColumnFamilyTimeRange(entry.getKey(), tr.getMin(), tr.getMax());</span> |
| <span class="source-line-no">124</span><span id="line-124"> }</span> |
| <span class="source-line-no">125</span><span id="line-125"> super.setPriority(get.getPriority());</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"></span> |
| <span class="source-line-no">128</span><span id="line-128"> /**</span> |
| <span class="source-line-no">129</span><span id="line-129"> * Create a Get operation for the specified row.</span> |
| <span class="source-line-no">130</span><span id="line-130"> */</span> |
| <span class="source-line-no">131</span><span id="line-131"> public Get(byte[] row, int rowOffset, int rowLength) {</span> |
| <span class="source-line-no">132</span><span id="line-132"> Mutation.checkRow(row, rowOffset, rowLength);</span> |
| <span class="source-line-no">133</span><span id="line-133"> this.row = Bytes.copy(row, rowOffset, rowLength);</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> /**</span> |
| <span class="source-line-no">137</span><span id="line-137"> * Create a Get operation for the specified row.</span> |
| <span class="source-line-no">138</span><span id="line-138"> */</span> |
| <span class="source-line-no">139</span><span id="line-139"> public Get(ByteBuffer row) {</span> |
| <span class="source-line-no">140</span><span id="line-140"> Mutation.checkRow(row);</span> |
| <span class="source-line-no">141</span><span id="line-141"> this.row = new byte[row.remaining()];</span> |
| <span class="source-line-no">142</span><span id="line-142"> row.get(this.row);</span> |
| <span class="source-line-no">143</span><span id="line-143"> }</span> |
| <span class="source-line-no">144</span><span id="line-144"></span> |
| <span class="source-line-no">145</span><span id="line-145"> public boolean isCheckExistenceOnly() {</span> |
| <span class="source-line-no">146</span><span id="line-146"> return checkExistenceOnly;</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"> public Get setCheckExistenceOnly(boolean checkExistenceOnly) {</span> |
| <span class="source-line-no">150</span><span id="line-150"> this.checkExistenceOnly = checkExistenceOnly;</span> |
| <span class="source-line-no">151</span><span id="line-151"> return this;</span> |
| <span class="source-line-no">152</span><span id="line-152"> }</span> |
| <span class="source-line-no">153</span><span id="line-153"></span> |
| <span class="source-line-no">154</span><span id="line-154"> /**</span> |
| <span class="source-line-no">155</span><span id="line-155"> * Get all columns from the specified family.</span> |
| <span class="source-line-no">156</span><span id="line-156"> * <p></span> |
| <span class="source-line-no">157</span><span id="line-157"> * Overrides previous calls to addColumn for this family.</span> |
| <span class="source-line-no">158</span><span id="line-158"> * @param family family name</span> |
| <span class="source-line-no">159</span><span id="line-159"> * @return the Get object</span> |
| <span class="source-line-no">160</span><span id="line-160"> */</span> |
| <span class="source-line-no">161</span><span id="line-161"> public Get addFamily(byte[] family) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> familyMap.remove(family);</span> |
| <span class="source-line-no">163</span><span id="line-163"> familyMap.put(family, null);</span> |
| <span class="source-line-no">164</span><span id="line-164"> return this;</span> |
| <span class="source-line-no">165</span><span id="line-165"> }</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"> * Get the column from the specific family with the specified qualifier.</span> |
| <span class="source-line-no">169</span><span id="line-169"> * <p></span> |
| <span class="source-line-no">170</span><span id="line-170"> * Overrides previous calls to addFamily for this family.</span> |
| <span class="source-line-no">171</span><span id="line-171"> * @param family family name</span> |
| <span class="source-line-no">172</span><span id="line-172"> * @param qualifier column qualifier</span> |
| <span class="source-line-no">173</span><span id="line-173"> * @return the Get objec</span> |
| <span class="source-line-no">174</span><span id="line-174"> */</span> |
| <span class="source-line-no">175</span><span id="line-175"> public Get addColumn(byte[] family, byte[] qualifier) {</span> |
| <span class="source-line-no">176</span><span id="line-176"> NavigableSet<byte[]> set = familyMap.get(family);</span> |
| <span class="source-line-no">177</span><span id="line-177"> if (set == null) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> set = new TreeSet<>(Bytes.BYTES_COMPARATOR);</span> |
| <span class="source-line-no">179</span><span id="line-179"> familyMap.put(family, set);</span> |
| <span class="source-line-no">180</span><span id="line-180"> }</span> |
| <span class="source-line-no">181</span><span id="line-181"> if (qualifier == null) {</span> |
| <span class="source-line-no">182</span><span id="line-182"> qualifier = HConstants.EMPTY_BYTE_ARRAY;</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"> set.add(qualifier);</span> |
| <span class="source-line-no">185</span><span id="line-185"> return this;</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> /**</span> |
| <span class="source-line-no">189</span><span id="line-189"> * Get versions of columns only within the specified timestamp range, [minStamp, maxStamp).</span> |
| <span class="source-line-no">190</span><span id="line-190"> * @param minStamp minimum timestamp value, inclusive</span> |
| <span class="source-line-no">191</span><span id="line-191"> * @param maxStamp maximum timestamp value, exclusive</span> |
| <span class="source-line-no">192</span><span id="line-192"> * @return this for invocation chaining</span> |
| <span class="source-line-no">193</span><span id="line-193"> */</span> |
| <span class="source-line-no">194</span><span id="line-194"> public Get setTimeRange(long minStamp, long maxStamp) throws IOException {</span> |
| <span class="source-line-no">195</span><span id="line-195"> tr = TimeRange.between(minStamp, maxStamp);</span> |
| <span class="source-line-no">196</span><span id="line-196"> return this;</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"> /**</span> |
| <span class="source-line-no">200</span><span id="line-200"> * Get versions of columns with the specified timestamp.</span> |
| <span class="source-line-no">201</span><span id="line-201"> * @param timestamp version timestamp</span> |
| <span class="source-line-no">202</span><span id="line-202"> * @return this for invocation chaining</span> |
| <span class="source-line-no">203</span><span id="line-203"> */</span> |
| <span class="source-line-no">204</span><span id="line-204"> public Get setTimestamp(long timestamp) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> try {</span> |
| <span class="source-line-no">206</span><span id="line-206"> tr = TimeRange.at(timestamp);</span> |
| <span class="source-line-no">207</span><span id="line-207"> } catch (Exception e) {</span> |
| <span class="source-line-no">208</span><span id="line-208"> // This should never happen, unless integer overflow or something extremely wrong...</span> |
| <span class="source-line-no">209</span><span id="line-209"> LOG.error("TimeRange failed, likely caused by integer overflow. ", e);</span> |
| <span class="source-line-no">210</span><span id="line-210"> throw e;</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"> return this;</span> |
| <span class="source-line-no">213</span><span id="line-213"> }</span> |
| <span class="source-line-no">214</span><span id="line-214"></span> |
| <span class="source-line-no">215</span><span id="line-215"> @Override</span> |
| <span class="source-line-no">216</span><span id="line-216"> public Get setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp) {</span> |
| <span class="source-line-no">217</span><span id="line-217"> return (Get) super.setColumnFamilyTimeRange(cf, minStamp, maxStamp);</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</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"> * Get all available versions.</span> |
| <span class="source-line-no">222</span><span id="line-222"> * @return this for invocation chaining</span> |
| <span class="source-line-no">223</span><span id="line-223"> */</span> |
| <span class="source-line-no">224</span><span id="line-224"> public Get readAllVersions() {</span> |
| <span class="source-line-no">225</span><span id="line-225"> this.maxVersions = Integer.MAX_VALUE;</span> |
| <span class="source-line-no">226</span><span id="line-226"> return this;</span> |
| <span class="source-line-no">227</span><span id="line-227"> }</span> |
| <span class="source-line-no">228</span><span id="line-228"></span> |
| <span class="source-line-no">229</span><span id="line-229"> /**</span> |
| <span class="source-line-no">230</span><span id="line-230"> * Get up to the specified number of versions of each column.</span> |
| <span class="source-line-no">231</span><span id="line-231"> * @param versions specified number of versions for each column</span> |
| <span class="source-line-no">232</span><span id="line-232"> * @throws IOException if invalid number of versions</span> |
| <span class="source-line-no">233</span><span id="line-233"> * @return this for invocation chaining</span> |
| <span class="source-line-no">234</span><span id="line-234"> */</span> |
| <span class="source-line-no">235</span><span id="line-235"> public Get readVersions(int versions) throws IOException {</span> |
| <span class="source-line-no">236</span><span id="line-236"> if (versions <= 0) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> throw new IOException("versions must be positive");</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239"> this.maxVersions = versions;</span> |
| <span class="source-line-no">240</span><span id="line-240"> return this;</span> |
| <span class="source-line-no">241</span><span id="line-241"> }</span> |
| <span class="source-line-no">242</span><span id="line-242"></span> |
| <span class="source-line-no">243</span><span id="line-243"> @Override</span> |
| <span class="source-line-no">244</span><span id="line-244"> public Get setLoadColumnFamiliesOnDemand(boolean value) {</span> |
| <span class="source-line-no">245</span><span id="line-245"> return (Get) super.setLoadColumnFamiliesOnDemand(value);</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"> /**</span> |
| <span class="source-line-no">249</span><span id="line-249"> * Set the maximum number of values to return per row per Column Family</span> |
| <span class="source-line-no">250</span><span id="line-250"> * @param limit the maximum number of values returned / row / CF</span> |
| <span class="source-line-no">251</span><span id="line-251"> * @return this for invocation chaining</span> |
| <span class="source-line-no">252</span><span id="line-252"> */</span> |
| <span class="source-line-no">253</span><span id="line-253"> public Get setMaxResultsPerColumnFamily(int limit) {</span> |
| <span class="source-line-no">254</span><span id="line-254"> this.storeLimit = limit;</span> |
| <span class="source-line-no">255</span><span id="line-255"> return this;</span> |
| <span class="source-line-no">256</span><span id="line-256"> }</span> |
| <span class="source-line-no">257</span><span id="line-257"></span> |
| <span class="source-line-no">258</span><span id="line-258"> /**</span> |
| <span class="source-line-no">259</span><span id="line-259"> * Set offset for the row per Column Family. This offset is only within a particular row/CF</span> |
| <span class="source-line-no">260</span><span id="line-260"> * combination. It gets reset back to zero when we move to the next row or CF.</span> |
| <span class="source-line-no">261</span><span id="line-261"> * @param offset is the number of kvs that will be skipped.</span> |
| <span class="source-line-no">262</span><span id="line-262"> * @return this for invocation chaining</span> |
| <span class="source-line-no">263</span><span id="line-263"> */</span> |
| <span class="source-line-no">264</span><span id="line-264"> public Get setRowOffsetPerColumnFamily(int offset) {</span> |
| <span class="source-line-no">265</span><span id="line-265"> this.storeOffset = offset;</span> |
| <span class="source-line-no">266</span><span id="line-266"> return this;</span> |
| <span class="source-line-no">267</span><span id="line-267"> }</span> |
| <span class="source-line-no">268</span><span id="line-268"></span> |
| <span class="source-line-no">269</span><span id="line-269"> @Override</span> |
| <span class="source-line-no">270</span><span id="line-270"> public Get setFilter(Filter filter) {</span> |
| <span class="source-line-no">271</span><span id="line-271"> super.setFilter(filter);</span> |
| <span class="source-line-no">272</span><span id="line-272"> return this;</span> |
| <span class="source-line-no">273</span><span id="line-273"> }</span> |
| <span class="source-line-no">274</span><span id="line-274"></span> |
| <span class="source-line-no">275</span><span id="line-275"> /* Accessors */</span> |
| <span class="source-line-no">276</span><span id="line-276"></span> |
| <span class="source-line-no">277</span><span id="line-277"> /**</span> |
| <span class="source-line-no">278</span><span id="line-278"> * Set whether blocks should be cached for this Get.</span> |
| <span class="source-line-no">279</span><span id="line-279"> * <p></span> |
| <span class="source-line-no">280</span><span id="line-280"> * This is true by default. When true, default settings of the table and family are used (this</span> |
| <span class="source-line-no">281</span><span id="line-281"> * will never override caching blocks if the block cache is disabled for that family or entirely).</span> |
| <span class="source-line-no">282</span><span id="line-282"> * @param cacheBlocks if false, default settings are overridden and blocks will not be cached</span> |
| <span class="source-line-no">283</span><span id="line-283"> */</span> |
| <span class="source-line-no">284</span><span id="line-284"> public Get setCacheBlocks(boolean cacheBlocks) {</span> |
| <span class="source-line-no">285</span><span id="line-285"> this.cacheBlocks = cacheBlocks;</span> |
| <span class="source-line-no">286</span><span id="line-286"> return this;</span> |
| <span class="source-line-no">287</span><span id="line-287"> }</span> |
| <span class="source-line-no">288</span><span id="line-288"></span> |
| <span class="source-line-no">289</span><span id="line-289"> /**</span> |
| <span class="source-line-no">290</span><span id="line-290"> * Get whether blocks should be cached for this Get.</span> |
| <span class="source-line-no">291</span><span id="line-291"> * @return true if default caching should be used, false if blocks should not be cached</span> |
| <span class="source-line-no">292</span><span id="line-292"> */</span> |
| <span class="source-line-no">293</span><span id="line-293"> public boolean getCacheBlocks() {</span> |
| <span class="source-line-no">294</span><span id="line-294"> return cacheBlocks;</span> |
| <span class="source-line-no">295</span><span id="line-295"> }</span> |
| <span class="source-line-no">296</span><span id="line-296"></span> |
| <span class="source-line-no">297</span><span id="line-297"> /**</span> |
| <span class="source-line-no">298</span><span id="line-298"> * Method for retrieving the get's row</span> |
| <span class="source-line-no">299</span><span id="line-299"> */</span> |
| <span class="source-line-no">300</span><span id="line-300"> @Override</span> |
| <span class="source-line-no">301</span><span id="line-301"> public byte[] getRow() {</span> |
| <span class="source-line-no">302</span><span id="line-302"> return this.row;</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"> * Method for retrieving the get's maximum number of version</span> |
| <span class="source-line-no">307</span><span id="line-307"> * @return the maximum number of version to fetch for this get</span> |
| <span class="source-line-no">308</span><span id="line-308"> */</span> |
| <span class="source-line-no">309</span><span id="line-309"> public int getMaxVersions() {</span> |
| <span class="source-line-no">310</span><span id="line-310"> return this.maxVersions;</span> |
| <span class="source-line-no">311</span><span id="line-311"> }</span> |
| <span class="source-line-no">312</span><span id="line-312"></span> |
| <span class="source-line-no">313</span><span id="line-313"> /**</span> |
| <span class="source-line-no">314</span><span id="line-314"> * Method for retrieving the get's maximum number of values to return per Column Family</span> |
| <span class="source-line-no">315</span><span id="line-315"> * @return the maximum number of values to fetch per CF</span> |
| <span class="source-line-no">316</span><span id="line-316"> */</span> |
| <span class="source-line-no">317</span><span id="line-317"> public int getMaxResultsPerColumnFamily() {</span> |
| <span class="source-line-no">318</span><span id="line-318"> return this.storeLimit;</span> |
| <span class="source-line-no">319</span><span id="line-319"> }</span> |
| <span class="source-line-no">320</span><span id="line-320"></span> |
| <span class="source-line-no">321</span><span id="line-321"> /**</span> |
| <span class="source-line-no">322</span><span id="line-322"> * Method for retrieving the get's offset per row per column family (#kvs to be skipped)</span> |
| <span class="source-line-no">323</span><span id="line-323"> * @return the row offset</span> |
| <span class="source-line-no">324</span><span id="line-324"> */</span> |
| <span class="source-line-no">325</span><span id="line-325"> public int getRowOffsetPerColumnFamily() {</span> |
| <span class="source-line-no">326</span><span id="line-326"> return this.storeOffset;</span> |
| <span class="source-line-no">327</span><span id="line-327"> }</span> |
| <span class="source-line-no">328</span><span id="line-328"></span> |
| <span class="source-line-no">329</span><span id="line-329"> /**</span> |
| <span class="source-line-no">330</span><span id="line-330"> * Method for retrieving the get's TimeRange</span> |
| <span class="source-line-no">331</span><span id="line-331"> */</span> |
| <span class="source-line-no">332</span><span id="line-332"> public TimeRange getTimeRange() {</span> |
| <span class="source-line-no">333</span><span id="line-333"> return this.tr;</span> |
| <span class="source-line-no">334</span><span id="line-334"> }</span> |
| <span class="source-line-no">335</span><span id="line-335"></span> |
| <span class="source-line-no">336</span><span id="line-336"> /**</span> |
| <span class="source-line-no">337</span><span id="line-337"> * Method for retrieving the keys in the familyMap</span> |
| <span class="source-line-no">338</span><span id="line-338"> * @return keys in the current familyMap</span> |
| <span class="source-line-no">339</span><span id="line-339"> */</span> |
| <span class="source-line-no">340</span><span id="line-340"> public Set<byte[]> familySet() {</span> |
| <span class="source-line-no">341</span><span id="line-341"> return this.familyMap.keySet();</span> |
| <span class="source-line-no">342</span><span id="line-342"> }</span> |
| <span class="source-line-no">343</span><span id="line-343"></span> |
| <span class="source-line-no">344</span><span id="line-344"> /**</span> |
| <span class="source-line-no">345</span><span id="line-345"> * Method for retrieving the number of families to get from</span> |
| <span class="source-line-no">346</span><span id="line-346"> * @return number of families</span> |
| <span class="source-line-no">347</span><span id="line-347"> */</span> |
| <span class="source-line-no">348</span><span id="line-348"> public int numFamilies() {</span> |
| <span class="source-line-no">349</span><span id="line-349"> return this.familyMap.size();</span> |
| <span class="source-line-no">350</span><span id="line-350"> }</span> |
| <span class="source-line-no">351</span><span id="line-351"></span> |
| <span class="source-line-no">352</span><span id="line-352"> /**</span> |
| <span class="source-line-no">353</span><span id="line-353"> * Method for checking if any families have been inserted into this Get</span> |
| <span class="source-line-no">354</span><span id="line-354"> * @return true if familyMap is non empty false otherwise</span> |
| <span class="source-line-no">355</span><span id="line-355"> */</span> |
| <span class="source-line-no">356</span><span id="line-356"> public boolean hasFamilies() {</span> |
| <span class="source-line-no">357</span><span id="line-357"> return !this.familyMap.isEmpty();</span> |
| <span class="source-line-no">358</span><span id="line-358"> }</span> |
| <span class="source-line-no">359</span><span id="line-359"></span> |
| <span class="source-line-no">360</span><span id="line-360"> /**</span> |
| <span class="source-line-no">361</span><span id="line-361"> * Method for retrieving the get's familyMap</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 Map<byte[], NavigableSet<byte[]>> getFamilyMap() {</span> |
| <span class="source-line-no">364</span><span id="line-364"> return this.familyMap;</span> |
| <span class="source-line-no">365</span><span id="line-365"> }</span> |
| <span class="source-line-no">366</span><span id="line-366"></span> |
| <span class="source-line-no">367</span><span id="line-367"> /**</span> |
| <span class="source-line-no">368</span><span id="line-368"> * Compile the table and column family (i.e. schema) information into a String. Useful for parsing</span> |
| <span class="source-line-no">369</span><span id="line-369"> * and aggregation by debugging, logging, and administration tools.</span> |
| <span class="source-line-no">370</span><span id="line-370"> */</span> |
| <span class="source-line-no">371</span><span id="line-371"> @Override</span> |
| <span class="source-line-no">372</span><span id="line-372"> public Map<String, Object> getFingerprint() {</span> |
| <span class="source-line-no">373</span><span id="line-373"> Map<String, Object> map = new HashMap<>();</span> |
| <span class="source-line-no">374</span><span id="line-374"> List<String> families = new ArrayList<>(this.familyMap.entrySet().size());</span> |
| <span class="source-line-no">375</span><span id="line-375"> map.put("families", families);</span> |
| <span class="source-line-no">376</span><span id="line-376"> for (Map.Entry<byte[], NavigableSet<byte[]>> entry : this.familyMap.entrySet()) {</span> |
| <span class="source-line-no">377</span><span id="line-377"> families.add(Bytes.toStringBinary(entry.getKey()));</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"> return map;</span> |
| <span class="source-line-no">380</span><span id="line-380"> }</span> |
| <span class="source-line-no">381</span><span id="line-381"></span> |
| <span class="source-line-no">382</span><span id="line-382"> /**</span> |
| <span class="source-line-no">383</span><span id="line-383"> * Compile the details beyond the scope of getFingerprint (row, columns, timestamps, etc.) into a</span> |
| <span class="source-line-no">384</span><span id="line-384"> * Map along with the fingerprinted information. Useful for debugging, logging, and administration</span> |
| <span class="source-line-no">385</span><span id="line-385"> * tools.</span> |
| <span class="source-line-no">386</span><span id="line-386"> * @param maxCols a limit on the number of columns output prior to truncation</span> |
| <span class="source-line-no">387</span><span id="line-387"> */</span> |
| <span class="source-line-no">388</span><span id="line-388"> @Override</span> |
| <span class="source-line-no">389</span><span id="line-389"> public Map<String, Object> toMap(int maxCols) {</span> |
| <span class="source-line-no">390</span><span id="line-390"> // we start with the fingerprint map and build on top of it.</span> |
| <span class="source-line-no">391</span><span id="line-391"> Map<String, Object> map = getFingerprint();</span> |
| <span class="source-line-no">392</span><span id="line-392"> // replace the fingerprint's simple list of families with a</span> |
| <span class="source-line-no">393</span><span id="line-393"> // map from column families to lists of qualifiers and kv details</span> |
| <span class="source-line-no">394</span><span id="line-394"> Map<String, List<String>> columns = new HashMap<>();</span> |
| <span class="source-line-no">395</span><span id="line-395"> map.put("families", columns);</span> |
| <span class="source-line-no">396</span><span id="line-396"> // add scalar information first</span> |
| <span class="source-line-no">397</span><span id="line-397"> map.put("row", Bytes.toStringBinary(this.row));</span> |
| <span class="source-line-no">398</span><span id="line-398"> map.put("maxVersions", this.maxVersions);</span> |
| <span class="source-line-no">399</span><span id="line-399"> map.put("cacheBlocks", this.cacheBlocks);</span> |
| <span class="source-line-no">400</span><span id="line-400"> List<Long> timeRange = new ArrayList<>(2);</span> |
| <span class="source-line-no">401</span><span id="line-401"> timeRange.add(this.tr.getMin());</span> |
| <span class="source-line-no">402</span><span id="line-402"> timeRange.add(this.tr.getMax());</span> |
| <span class="source-line-no">403</span><span id="line-403"> map.put("timeRange", timeRange);</span> |
| <span class="source-line-no">404</span><span id="line-404"> int colCount = 0;</span> |
| <span class="source-line-no">405</span><span id="line-405"> // iterate through affected families and add details</span> |
| <span class="source-line-no">406</span><span id="line-406"> for (Map.Entry<byte[], NavigableSet<byte[]>> entry : this.familyMap.entrySet()) {</span> |
| <span class="source-line-no">407</span><span id="line-407"> List<String> familyList = new ArrayList<>();</span> |
| <span class="source-line-no">408</span><span id="line-408"> columns.put(Bytes.toStringBinary(entry.getKey()), familyList);</span> |
| <span class="source-line-no">409</span><span id="line-409"> if (entry.getValue() == null) {</span> |
| <span class="source-line-no">410</span><span id="line-410"> colCount++;</span> |
| <span class="source-line-no">411</span><span id="line-411"> --maxCols;</span> |
| <span class="source-line-no">412</span><span id="line-412"> familyList.add("ALL");</span> |
| <span class="source-line-no">413</span><span id="line-413"> } else {</span> |
| <span class="source-line-no">414</span><span id="line-414"> colCount += entry.getValue().size();</span> |
| <span class="source-line-no">415</span><span id="line-415"> if (maxCols <= 0) {</span> |
| <span class="source-line-no">416</span><span id="line-416"> continue;</span> |
| <span class="source-line-no">417</span><span id="line-417"> }</span> |
| <span class="source-line-no">418</span><span id="line-418"> for (byte[] column : entry.getValue()) {</span> |
| <span class="source-line-no">419</span><span id="line-419"> if (--maxCols <= 0) {</span> |
| <span class="source-line-no">420</span><span id="line-420"> continue;</span> |
| <span class="source-line-no">421</span><span id="line-421"> }</span> |
| <span class="source-line-no">422</span><span id="line-422"> familyList.add(Bytes.toStringBinary(column));</span> |
| <span class="source-line-no">423</span><span id="line-423"> }</span> |
| <span class="source-line-no">424</span><span id="line-424"> }</span> |
| <span class="source-line-no">425</span><span id="line-425"> }</span> |
| <span class="source-line-no">426</span><span id="line-426"> map.put("totalColumns", colCount);</span> |
| <span class="source-line-no">427</span><span id="line-427"> if (this.filter != null) {</span> |
| <span class="source-line-no">428</span><span id="line-428"> map.put("filter", this.filter.toString());</span> |
| <span class="source-line-no">429</span><span id="line-429"> }</span> |
| <span class="source-line-no">430</span><span id="line-430"> // add the id if set</span> |
| <span class="source-line-no">431</span><span id="line-431"> if (getId() != null) {</span> |
| <span class="source-line-no">432</span><span id="line-432"> map.put("id", getId());</span> |
| <span class="source-line-no">433</span><span id="line-433"> }</span> |
| <span class="source-line-no">434</span><span id="line-434"> map.put("storeLimit", this.storeLimit);</span> |
| <span class="source-line-no">435</span><span id="line-435"> map.put("storeOffset", this.storeOffset);</span> |
| <span class="source-line-no">436</span><span id="line-436"> map.put("checkExistenceOnly", this.checkExistenceOnly);</span> |
| <span class="source-line-no">437</span><span id="line-437"></span> |
| <span class="source-line-no">438</span><span id="line-438"> map.put("targetReplicaId", this.targetReplicaId);</span> |
| <span class="source-line-no">439</span><span id="line-439"> map.put("consistency", this.consistency);</span> |
| <span class="source-line-no">440</span><span id="line-440"> map.put("loadColumnFamiliesOnDemand", this.loadColumnFamiliesOnDemand);</span> |
| <span class="source-line-no">441</span><span id="line-441"> if (!colFamTimeRangeMap.isEmpty()) {</span> |
| <span class="source-line-no">442</span><span id="line-442"> Map<String, List<Long>> colFamTimeRangeMapStr = colFamTimeRangeMap.entrySet().stream()</span> |
| <span class="source-line-no">443</span><span id="line-443"> .collect(Collectors.toMap((e) -> Bytes.toStringBinary(e.getKey()), e -> {</span> |
| <span class="source-line-no">444</span><span id="line-444"> TimeRange value = e.getValue();</span> |
| <span class="source-line-no">445</span><span id="line-445"> List<Long> rangeList = new ArrayList<>();</span> |
| <span class="source-line-no">446</span><span id="line-446"> rangeList.add(value.getMin());</span> |
| <span class="source-line-no">447</span><span id="line-447"> rangeList.add(value.getMax());</span> |
| <span class="source-line-no">448</span><span id="line-448"> return rangeList;</span> |
| <span class="source-line-no">449</span><span id="line-449"> }));</span> |
| <span class="source-line-no">450</span><span id="line-450"></span> |
| <span class="source-line-no">451</span><span id="line-451"> map.put("colFamTimeRangeMap", colFamTimeRangeMapStr);</span> |
| <span class="source-line-no">452</span><span id="line-452"> }</span> |
| <span class="source-line-no">453</span><span id="line-453"> map.put("priority", getPriority());</span> |
| <span class="source-line-no">454</span><span id="line-454"> return map;</span> |
| <span class="source-line-no">455</span><span id="line-455"> }</span> |
| <span class="source-line-no">456</span><span id="line-456"></span> |
| <span class="source-line-no">457</span><span id="line-457"> @Override</span> |
| <span class="source-line-no">458</span><span id="line-458"> public int hashCode() {</span> |
| <span class="source-line-no">459</span><span id="line-459"> // TODO: This is wrong. Can't have two gets the same just because on same row. But it</span> |
| <span class="source-line-no">460</span><span id="line-460"> // matches how equals works currently and gets rid of the findbugs warning.</span> |
| <span class="source-line-no">461</span><span id="line-461"> return Bytes.hashCode(this.getRow());</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"> @Override</span> |
| <span class="source-line-no">465</span><span id="line-465"> public boolean equals(Object obj) {</span> |
| <span class="source-line-no">466</span><span id="line-466"> if (this == obj) {</span> |
| <span class="source-line-no">467</span><span id="line-467"> return true;</span> |
| <span class="source-line-no">468</span><span id="line-468"> }</span> |
| <span class="source-line-no">469</span><span id="line-469"> if (!(obj instanceof Row)) {</span> |
| <span class="source-line-no">470</span><span id="line-470"> return false;</span> |
| <span class="source-line-no">471</span><span id="line-471"> }</span> |
| <span class="source-line-no">472</span><span id="line-472"> Row other = (Row) obj;</span> |
| <span class="source-line-no">473</span><span id="line-473"> // TODO: This is wrong. Can't have two gets the same just because on same row.</span> |
| <span class="source-line-no">474</span><span id="line-474"> return Row.COMPARATOR.compare(this, other) == 0;</span> |
| <span class="source-line-no">475</span><span id="line-475"> }</span> |
| <span class="source-line-no">476</span><span id="line-476"></span> |
| <span class="source-line-no">477</span><span id="line-477"> @Override</span> |
| <span class="source-line-no">478</span><span id="line-478"> public Get setAttribute(String name, byte[] value) {</span> |
| <span class="source-line-no">479</span><span id="line-479"> return (Get) super.setAttribute(name, value);</span> |
| <span class="source-line-no">480</span><span id="line-480"> }</span> |
| <span class="source-line-no">481</span><span id="line-481"></span> |
| <span class="source-line-no">482</span><span id="line-482"> @Override</span> |
| <span class="source-line-no">483</span><span id="line-483"> public Get setId(String id) {</span> |
| <span class="source-line-no">484</span><span id="line-484"> return (Get) super.setId(id);</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"> @Override</span> |
| <span class="source-line-no">488</span><span id="line-488"> public Get setAuthorizations(Authorizations authorizations) {</span> |
| <span class="source-line-no">489</span><span id="line-489"> return (Get) super.setAuthorizations(authorizations);</span> |
| <span class="source-line-no">490</span><span id="line-490"> }</span> |
| <span class="source-line-no">491</span><span id="line-491"></span> |
| <span class="source-line-no">492</span><span id="line-492"> @Override</span> |
| <span class="source-line-no">493</span><span id="line-493"> public Get setACL(Map<String, Permission> perms) {</span> |
| <span class="source-line-no">494</span><span id="line-494"> return (Get) super.setACL(perms);</span> |
| <span class="source-line-no">495</span><span id="line-495"> }</span> |
| <span class="source-line-no">496</span><span id="line-496"></span> |
| <span class="source-line-no">497</span><span id="line-497"> @Override</span> |
| <span class="source-line-no">498</span><span id="line-498"> public Get setACL(String user, Permission perms) {</span> |
| <span class="source-line-no">499</span><span id="line-499"> return (Get) super.setACL(user, perms);</span> |
| <span class="source-line-no">500</span><span id="line-500"> }</span> |
| <span class="source-line-no">501</span><span id="line-501"></span> |
| <span class="source-line-no">502</span><span id="line-502"> @Override</span> |
| <span class="source-line-no">503</span><span id="line-503"> public Get setConsistency(Consistency consistency) {</span> |
| <span class="source-line-no">504</span><span id="line-504"> return (Get) super.setConsistency(consistency);</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"> @Override</span> |
| <span class="source-line-no">508</span><span id="line-508"> public Get setReplicaId(int Id) {</span> |
| <span class="source-line-no">509</span><span id="line-509"> return (Get) super.setReplicaId(Id);</span> |
| <span class="source-line-no">510</span><span id="line-510"> }</span> |
| <span class="source-line-no">511</span><span id="line-511"></span> |
| <span class="source-line-no">512</span><span id="line-512"> @Override</span> |
| <span class="source-line-no">513</span><span id="line-513"> public Get setIsolationLevel(IsolationLevel level) {</span> |
| <span class="source-line-no">514</span><span id="line-514"> return (Get) super.setIsolationLevel(level);</span> |
| <span class="source-line-no">515</span><span id="line-515"> }</span> |
| <span class="source-line-no">516</span><span id="line-516"></span> |
| <span class="source-line-no">517</span><span id="line-517"> @Override</span> |
| <span class="source-line-no">518</span><span id="line-518"> public Get setPriority(int priority) {</span> |
| <span class="source-line-no">519</span><span id="line-519"> return (Get) super.setPriority(priority);</span> |
| <span class="source-line-no">520</span><span id="line-520"> }</span> |
| <span class="source-line-no">521</span><span id="line-521">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
