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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.filter;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.ArrayList;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Collections;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Objects;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.Cell;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HConstants;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.ClientUtil;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.FilterProtos;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span>/**<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Filter to support scan multiple row key ranges. It can construct the row key ranges from the<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * passed list which can be accessed by each region server.<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> *<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * HBase is quite efficient when scanning only one small row key range. If user needs to specify<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * multiple row key ranges in one scan, the typical solutions are: 1. through FilterList which is a<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * list of row key Filters, 2. using the SQL layer over HBase to join with two table, such as hive,<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * phoenix etc. However, both solutions are inefficient. Both of them can't utilize the range info<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * to perform fast forwarding during scan which is quite time consuming. If the number of ranges<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * are quite big (e.g. millions), join is a proper solution though it is slow. However, there are<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * cases that user wants to specify a small number of ranges to scan (e.g. &lt;1000 ranges). Both<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * solutions can't provide satisfactory performance in such case. MultiRowRangeFilter is to support<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * such usec ase (scan multiple row key ranges), which can construct the row key ranges from user<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * specified list and perform fast-forwarding during scan. Thus, the scan will be quite efficient.<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> */<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>@InterfaceAudience.Public<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>public class MultiRowRangeFilter extends FilterBase {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private static final int ROW_BEFORE_FIRST_RANGE = -1;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private final List<RowRange> rangeList;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private final RangeIteration ranges;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private boolean done = false;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private int index;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private BasicRowRange range;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private ReturnCode currentReturnCode;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> /**<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * @param list A list of <code>RowRange</code><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> */<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public MultiRowRangeFilter(List<RowRange> list) {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> // We don't use rangeList anywhere else, but keeping it lets us pay a little<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> // memory to avoid touching the serialization logic.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> this.rangeList = Collections.unmodifiableList(sortAndMerge(list));<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> this.ranges = new RangeIteration(rangeList);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> }<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> /**<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * Constructor for creating a <code>MultiRowRangeFilter</code> from multiple rowkey prefixes.<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> *<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * As <code>MultiRowRangeFilter</code> javadoc says (See the solution 1 of the first statement),<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * if you try to create a filter list that scans row keys corresponding to given prefixes (e.g.,<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * <code>FilterList</code> composed of multiple <code>PrefixFilter</code>s), this constructor<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * provides a way to avoid creating an inefficient one.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> *<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @param rowKeyPrefixes the array of byte array<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> */<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public MultiRowRangeFilter(byte[][] rowKeyPrefixes) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> this(createRangeListFromRowKeyPrefixes(rowKeyPrefixes));<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private static List<RowRange> createRangeListFromRowKeyPrefixes(byte[][] rowKeyPrefixes) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (rowKeyPrefixes == null) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> throw new IllegalArgumentException("Invalid rowkey prefixes");<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> List<RowRange> list = new ArrayList<>();<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> for (byte[] rowKeyPrefix: rowKeyPrefixes) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> byte[] stopRow = ClientUtil.calculateTheClosestNextRowKeyForPrefix(rowKeyPrefix);<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> list.add(new RowRange(rowKeyPrefix, true, stopRow, false));<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> return list;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> }<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public List<RowRange> getRowRanges() {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> // Used by hbase-rest<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return this.rangeList;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> @Override<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public boolean filterAllRemaining() {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> return done;<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> @Override<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> public boolean filterRowKey(Cell firstRowCell) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> if (filterAllRemaining()) return true;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> // N.b. We can only do this after we're iterating over records. If we try to do<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> // it before, the Scan (and this filter) may not yet be fully initialized. This is a<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> // wart on Filter and something that'd be nice to clean up (like CP's in HBase2.0)<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (!ranges.isInitialized()) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> ranges.initialize(isReversed());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // If it is the first time of running, calculate the current range index for<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // the row key. If index is out of bound which happens when the start row<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // user sets is after the largest stop row of the ranges, stop the scan.<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // If row key is after the current range, find the next range and update index.<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> byte[] rowArr = firstRowCell.getRowArray();<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> int length = firstRowCell.getRowLength();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> int offset = firstRowCell.getRowOffset();<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (!ranges.hasFoundFirstRange() || !range.contains(rowArr, offset, length)) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> byte[] rowkey = CellUtil.cloneRow(firstRowCell);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> index = ranges.getNextRangeIndex(rowkey);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> if (ranges.isIterationComplete(index)) {<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> done = true;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> currentReturnCode = ReturnCode.NEXT_ROW;<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> return false;<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> }<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> if(index != ROW_BEFORE_FIRST_RANGE) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> range = ranges.get(index);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> } else {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> range = ranges.get(0);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> if (ranges.isExclusive()) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> ranges.resetExclusive();<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> currentReturnCode = ReturnCode.NEXT_ROW;<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> return false;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> if (!ranges.hasFoundFirstRange()) {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> if(index != ROW_BEFORE_FIRST_RANGE) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> currentReturnCode = ReturnCode.INCLUDE;<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> } else {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> currentReturnCode = ReturnCode.SEEK_NEXT_USING_HINT;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> ranges.setFoundFirstRange();<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> } else {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> if (range.contains(rowArr, offset, length)) {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> currentReturnCode = ReturnCode.INCLUDE;<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> } else {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> currentReturnCode = ReturnCode.SEEK_NEXT_USING_HINT;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> } else {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> currentReturnCode = ReturnCode.INCLUDE;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> return false;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> @Override<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> public ReturnCode filterCell(final Cell ignored) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> return currentReturnCode;<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> @Override<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> public Cell getNextCellHint(Cell currentKV) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> // skip to the next range's start row<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> // #getComparisonData lets us avoid the `if (reversed)` branch<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> byte[] comparisonData = range.getComparisonData();<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> return PrivateCellUtil.createFirstOnRow(comparisonData, 0, (short) comparisonData.length);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> /**<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> * @return The filter serialized using pb<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> */<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> @Override<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> public byte[] toByteArray() {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> FilterProtos.MultiRowRangeFilter.Builder builder = FilterProtos.MultiRowRangeFilter<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> .newBuilder();<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> for (RowRange range : rangeList) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> if (range != null) {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> FilterProtos.RowRange.Builder rangebuilder = FilterProtos.RowRange.newBuilder();<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> if (range.startRow != null)<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> rangebuilder.setStartRow(UnsafeByteOperations.unsafeWrap(range.startRow));<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> rangebuilder.setStartRowInclusive(range.startRowInclusive);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> if (range.stopRow != null)<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> rangebuilder.setStopRow(UnsafeByteOperations.unsafeWrap(range.stopRow));<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> rangebuilder.setStopRowInclusive(range.stopRowInclusive);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> builder.addRowRangeList(rangebuilder.build());<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> return builder.build().toByteArray();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> /**<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * @param pbBytes A pb serialized instance<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * @return An instance of MultiRowRangeFilter<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * @throws org.apache.hadoop.hbase.exceptions.DeserializationException<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> */<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> public static MultiRowRangeFilter parseFrom(final byte[] pbBytes)<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> throws DeserializationException {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> FilterProtos.MultiRowRangeFilter proto;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> try {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> proto = FilterProtos.MultiRowRangeFilter.parseFrom(pbBytes);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> } catch (InvalidProtocolBufferException e) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> throw new DeserializationException(e);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> }<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> int length = proto.getRowRangeListCount();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> List<FilterProtos.RowRange> rangeProtos = proto.getRowRangeListList();<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> List<RowRange> rangeList = new ArrayList<>(length);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> for (FilterProtos.RowRange rangeProto : rangeProtos) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> RowRange range = new RowRange(rangeProto.hasStartRow() ? rangeProto.getStartRow()<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> .toByteArray() : null, rangeProto.getStartRowInclusive(), rangeProto.hasStopRow() ?<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> rangeProto.getStopRow().toByteArray() : null, rangeProto.getStopRowInclusive());<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> rangeList.add(range);<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> return new MultiRowRangeFilter(rangeList);<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span><a name="line.227"></a> |
| <span class="sourceLineNo">228</span> /**<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> * @param o the filter to compare<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> * @return true if and only if the fields of the filter that are serialized are equal to the<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> * corresponding fields in other. Used for testing.<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> */<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> @Override<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> boolean areSerializedFieldsEqual(Filter o) {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> if (o == this)<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> return true;<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> if (!(o instanceof MultiRowRangeFilter))<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> return false;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span><a name="line.239"></a> |
| <span class="sourceLineNo">240</span> MultiRowRangeFilter other = (MultiRowRangeFilter) o;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> if (this.rangeList.size() != other.rangeList.size())<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> return false;<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> for (int i = 0; i < rangeList.size(); ++i) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> RowRange thisRange = this.rangeList.get(i);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> RowRange otherRange = other.rangeList.get(i);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> if (!(Bytes.equals(thisRange.startRow, otherRange.startRow) && Bytes.equals(<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> thisRange.stopRow, otherRange.stopRow) && (thisRange.startRowInclusive ==<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> otherRange.startRowInclusive) && (thisRange.stopRowInclusive ==<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> otherRange.stopRowInclusive))) {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> return false;<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> return true;<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> }<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> /**<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * sort the ranges and if the ranges with overlap, then merge them.<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> *<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> * @param ranges the list of ranges to sort and merge.<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * @return the ranges after sort and merge.<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> */<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> public static List<RowRange> sortAndMerge(List<RowRange> ranges) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> if (ranges.isEmpty()) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> throw new IllegalArgumentException("No ranges found.");<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> List<RowRange> invalidRanges = new ArrayList<>();<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> List<RowRange> newRanges = new ArrayList<>(ranges.size());<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> Collections.sort(ranges);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> if(ranges.get(0).isValid()) {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> if (ranges.size() == 1) {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> newRanges.add(ranges.get(0));<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> }<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> } else {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> invalidRanges.add(ranges.get(0));<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span><a name="line.276"></a> |
| <span class="sourceLineNo">277</span> byte[] lastStartRow = ranges.get(0).startRow;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> boolean lastStartRowInclusive = ranges.get(0).startRowInclusive;<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> byte[] lastStopRow = ranges.get(0).stopRow;<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> boolean lastStopRowInclusive = ranges.get(0).stopRowInclusive;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> int i = 1;<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> for (; i < ranges.size(); i++) {<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> RowRange range = ranges.get(i);<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> if (!range.isValid()) {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> invalidRanges.add(range);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> if(Bytes.equals(lastStopRow, HConstants.EMPTY_BYTE_ARRAY)) {<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, lastStopRow,<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> lastStopRowInclusive));<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> break;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> // with overlap in the ranges<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> if ((Bytes.compareTo(lastStopRow, range.startRow) > 0) ||<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> (Bytes.compareTo(lastStopRow, range.startRow) == 0 && !(lastStopRowInclusive == false &&<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> range.isStartRowInclusive() == false))) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> if(Bytes.equals(range.stopRow, HConstants.EMPTY_BYTE_ARRAY)) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, range.stopRow,<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> range.stopRowInclusive));<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> break;<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> // if first range contains second range, ignore the second range<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> if (Bytes.compareTo(lastStopRow, range.stopRow) >= 0) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> if((Bytes.compareTo(lastStopRow, range.stopRow) == 0)) {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> if(lastStopRowInclusive == true || range.stopRowInclusive == true) {<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> lastStopRowInclusive = true;<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> if ((i + 1) == ranges.size()) {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, lastStopRow,<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> lastStopRowInclusive));<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> }<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> } else {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> lastStopRow = range.stopRow;<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> lastStopRowInclusive = range.stopRowInclusive;<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> if ((i + 1) < ranges.size()) {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> i++;<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> range = ranges.get(i);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> if (!range.isValid()) {<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> invalidRanges.add(range);<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> } else {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, lastStopRow,<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> lastStopRowInclusive));<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> break;<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> while ((Bytes.compareTo(lastStopRow, range.startRow) > 0) ||<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> (Bytes.compareTo(lastStopRow, range.startRow) == 0 &&<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> (lastStopRowInclusive == true || range.startRowInclusive==true))) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> if(Bytes.equals(range.stopRow, HConstants.EMPTY_BYTE_ARRAY)) {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> break;<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> }<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> // if this first range contain second range, ignore the second range<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> if (Bytes.compareTo(lastStopRow, range.stopRow) >= 0) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> if(lastStopRowInclusive == true || range.stopRowInclusive == true) {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> lastStopRowInclusive = true;<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> }<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> i++;<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> if (i < ranges.size()) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> range = ranges.get(i);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> if (!range.isValid()) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> invalidRanges.add(range);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> } else {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> break;<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> } else {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> lastStopRow = range.stopRow;<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> lastStopRowInclusive = range.stopRowInclusive;<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> i++;<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> if (i < ranges.size()) {<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> range = ranges.get(i);<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> if (!range.isValid()) {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> invalidRanges.add(range);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> }<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> } else {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> break;<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> }<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> if(Bytes.equals(range.stopRow, HConstants.EMPTY_BYTE_ARRAY)) {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> if((Bytes.compareTo(lastStopRow, range.startRow) < 0) ||<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> (Bytes.compareTo(lastStopRow, range.startRow) == 0 &&<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> lastStopRowInclusive == false && range.startRowInclusive == false)) {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, lastStopRow,<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> lastStopRowInclusive));<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> newRanges.add(range);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> } else {<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, range.stopRow,<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> range.stopRowInclusive));<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> break;<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, lastStopRow,<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> lastStopRowInclusive));<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> if ((i + 1) == ranges.size()) {<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> newRanges.add(range);<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> lastStartRow = range.startRow;<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> lastStartRowInclusive = range.startRowInclusive;<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> lastStopRow = range.stopRow;<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> lastStopRowInclusive = range.stopRowInclusive;<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> }<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> } else {<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> newRanges.add(new RowRange(lastStartRow, lastStartRowInclusive, lastStopRow,<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> lastStopRowInclusive));<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> if ((i + 1) == ranges.size()) {<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> newRanges.add(range);<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> }<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> lastStartRow = range.startRow;<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> lastStartRowInclusive = range.startRowInclusive;<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> lastStopRow = range.stopRow;<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> lastStopRowInclusive = range.stopRowInclusive;<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> }<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> // check the remaining ranges<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> for(int j=i; j < ranges.size(); j++) {<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> if(!ranges.get(j).isValid()) {<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> invalidRanges.add(ranges.get(j));<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> }<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> }<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> // if invalid range exists, throw the exception<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> if (invalidRanges.size() != 0) {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> throwExceptionForInvalidRanges(invalidRanges, true);<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> }<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> // If no valid ranges found, throw the exception<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> if(newRanges.isEmpty()) {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> throw new IllegalArgumentException("No valid ranges found.");<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> }<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> return newRanges;<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> }<a name="line.410"></a> |
| <span class="sourceLineNo">411</span><a name="line.411"></a> |
| <span class="sourceLineNo">412</span> private static void throwExceptionForInvalidRanges(List<RowRange> invalidRanges,<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> boolean details) {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> StringBuilder sb = new StringBuilder();<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> sb.append(invalidRanges.size()).append(" invaild ranges.\n");<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> if (details) {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> for (RowRange range : invalidRanges) {<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> sb.append(<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> "Invalid range: start row => " + Bytes.toString(range.startRow) + ", stop row => "<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> + Bytes.toString(range.stopRow)).append('\n');<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> }<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> }<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> throw new IllegalArgumentException(sb.toString());<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> }<a name="line.424"></a> |
| <span class="sourceLineNo">425</span><a name="line.425"></a> |
| <span class="sourceLineNo">426</span> private static abstract class BasicRowRange implements Comparable<BasicRowRange> {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> protected byte[] startRow;<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> protected boolean startRowInclusive = true;<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> protected byte[] stopRow;<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> protected boolean stopRowInclusive = false;<a name="line.430"></a> |
| <span class="sourceLineNo">431</span><a name="line.431"></a> |
| <span class="sourceLineNo">432</span> public BasicRowRange() {<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> /**<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> * If the startRow is empty or null, set it to HConstants.EMPTY_BYTE_ARRAY, means begin at the<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> * start row of the table. If the stopRow is empty or null, set it to<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> * HConstants.EMPTY_BYTE_ARRAY, means end of the last row of table.<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> */<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> public BasicRowRange(String startRow, boolean startRowInclusive, String stopRow,<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> boolean stopRowInclusive) {<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> this((startRow == null || startRow.isEmpty()) ? HConstants.EMPTY_BYTE_ARRAY :<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> Bytes.toBytes(startRow), startRowInclusive,<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> (stopRow == null || stopRow.isEmpty()) ? HConstants.EMPTY_BYTE_ARRAY :<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> Bytes.toBytes(stopRow), stopRowInclusive);<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> }<a name="line.445"></a> |
| <span class="sourceLineNo">446</span><a name="line.446"></a> |
| <span class="sourceLineNo">447</span> public BasicRowRange(byte[] startRow, boolean startRowInclusive, byte[] stopRow,<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> boolean stopRowInclusive) {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> this.startRow = (startRow == null) ? HConstants.EMPTY_BYTE_ARRAY : startRow;<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> this.startRowInclusive = startRowInclusive;<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> this.stopRow = (stopRow == null) ? HConstants.EMPTY_BYTE_ARRAY :stopRow;<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> this.stopRowInclusive = stopRowInclusive;<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> }<a name="line.453"></a> |
| <span class="sourceLineNo">454</span><a name="line.454"></a> |
| <span class="sourceLineNo">455</span> public byte[] getStartRow() {<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> return startRow;<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> }<a name="line.457"></a> |
| <span class="sourceLineNo">458</span><a name="line.458"></a> |
| <span class="sourceLineNo">459</span> public byte[] getStopRow() {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> return stopRow;<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> }<a name="line.461"></a> |
| <span class="sourceLineNo">462</span><a name="line.462"></a> |
| <span class="sourceLineNo">463</span> /**<a name="line.463"></a> |
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| <span class="sourceLineNo">470</span> /**<a name="line.470"></a> |
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| <span class="sourceLineNo">496</span> Bytes.compareTo(buffer, offset, length, stopRow, 0, stopRow.length) <= 0);<a name="line.496"></a> |
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| <span class="sourceLineNo">500</span> Bytes.compareTo(buffer, offset, length, stopRow, 0, stopRow.length) < 0);<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> }<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> }<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> }<a name="line.503"></a> |
| <span class="sourceLineNo">504</span><a name="line.504"></a> |
| <span class="sourceLineNo">505</span> public boolean isValid() {<a name="line.505"></a> |
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| <span class="sourceLineNo">508</span> || Bytes.compareTo(startRow, stopRow) < 0<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> || (Bytes.compareTo(startRow, stopRow) == 0 && stopRowInclusive == true);<a name="line.509"></a> |
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| <span class="sourceLineNo">511</span><a name="line.511"></a> |
| <span class="sourceLineNo">512</span> @Override<a name="line.512"></a> |
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| <span class="sourceLineNo">518</span> return true;<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> }<a name="line.519"></a> |
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| <span class="sourceLineNo">522</span> Bytes.equals(this.startRow, this.getStartRow()) &&<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> this.startRowInclusive == rr.isStartRowInclusive() &&<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> this.stopRowInclusive == rr.isStopRowInclusive();<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> }<a name="line.525"></a> |
| <span class="sourceLineNo">526</span><a name="line.526"></a> |
| <span class="sourceLineNo">527</span> @Override<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> public int hashCode() {<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> return Objects.hash(Bytes.hashCode(this.stopRow),<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> Bytes.hashCode(this.startRow),<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> this.startRowInclusive,<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> this.stopRowInclusive);<a name="line.532"></a> |
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| <span class="sourceLineNo">534</span><a name="line.534"></a> |
| <span class="sourceLineNo">535</span> /**<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> * Returns the data to be used to compare {@code this} to another object.<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> */<a name="line.537"></a> |
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| <span class="sourceLineNo">539</span><a name="line.539"></a> |
| <span class="sourceLineNo">540</span> /**<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> * Returns whether the bounding row used for binary-search is inclusive or not.<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> *<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> * For forward scans, we would check the starRow, but we would check the stopRow for<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> * the reverse scan case.<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> */<a name="line.545"></a> |
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| <span class="sourceLineNo">548</span> @Override<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> public int compareTo(BasicRowRange other) {<a name="line.549"></a> |
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| <span class="sourceLineNo">551</span> byte[] right;<a name="line.551"></a> |
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| <span class="sourceLineNo">553</span> left = this.getComparisonData();<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> right = other.getComparisonData();<a name="line.554"></a> |
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| <span class="sourceLineNo">556</span> left = other.getComparisonData();<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> right = this.getComparisonData();<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> }<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> return Bytes.compareTo(left, right);<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> }<a name="line.560"></a> |
| <span class="sourceLineNo">561</span><a name="line.561"></a> |
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| <span class="sourceLineNo">563</span> }<a name="line.563"></a> |
| <span class="sourceLineNo">564</span><a name="line.564"></a> |
| <span class="sourceLineNo">565</span> /**<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> * Internal RowRange that reverses the sort-order to handle reverse scans.<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> */<a name="line.567"></a> |
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| <span class="sourceLineNo">570</span> public ReversedRowRange(byte[] startRow, boolean startRowInclusive, byte[] stopRow,<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> boolean stopRowInclusive) {<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> super(startRow, startRowInclusive, stopRow, stopRowInclusive);<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span><a name="line.574"></a> |
| <span class="sourceLineNo">575</span> @Override<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> public byte[] getComparisonData() {<a name="line.576"></a> |
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| <span class="sourceLineNo">578</span> }<a name="line.578"></a> |
| <span class="sourceLineNo">579</span><a name="line.579"></a> |
| <span class="sourceLineNo">580</span> @Override<a name="line.580"></a> |
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| <span class="sourceLineNo">583</span> }<a name="line.583"></a> |
| <span class="sourceLineNo">584</span><a name="line.584"></a> |
| <span class="sourceLineNo">585</span> @Override<a name="line.585"></a> |
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| <span class="sourceLineNo">587</span> return false;<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> }<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> }<a name="line.589"></a> |
| <span class="sourceLineNo">590</span><a name="line.590"></a> |
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| <span class="sourceLineNo">592</span> public static class RowRange extends BasicRowRange {<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> public RowRange() {<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> }<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> /**<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> * If the startRow is empty or null, set it to HConstants.EMPTY_BYTE_ARRAY, means begin at the<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> * start row of the table. If the stopRow is empty or null, set it to<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> * HConstants.EMPTY_BYTE_ARRAY, means end of the last row of table.<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> */<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> public RowRange(String startRow, boolean startRowInclusive, String stopRow,<a name="line.600"></a> |
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| <span class="sourceLineNo">603</span> }<a name="line.603"></a> |
| <span class="sourceLineNo">604</span><a name="line.604"></a> |
| <span class="sourceLineNo">605</span> public RowRange(byte[] startRow, boolean startRowInclusive, byte[] stopRow,<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> boolean stopRowInclusive) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> super(startRow, startRowInclusive, stopRow, stopRowInclusive);<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> }<a name="line.608"></a> |
| <span class="sourceLineNo">609</span><a name="line.609"></a> |
| <span class="sourceLineNo">610</span> @Override<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> public byte[] getComparisonData() {<a name="line.611"></a> |
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| <span class="sourceLineNo">613</span> }<a name="line.613"></a> |
| <span class="sourceLineNo">614</span><a name="line.614"></a> |
| <span class="sourceLineNo">615</span> @Override<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> public boolean isSearchRowInclusive() {<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> return startRowInclusive;<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> }<a name="line.618"></a> |
| <span class="sourceLineNo">619</span><a name="line.619"></a> |
| <span class="sourceLineNo">620</span> @Override<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> public boolean isAscendingOrder() {<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> return true;<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> }<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> }<a name="line.624"></a> |
| <span class="sourceLineNo">625</span><a name="line.625"></a> |
| <span class="sourceLineNo">626</span> /**<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> * Abstraction over the ranges of rows to return from this filter, regardless of forward or<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> * reverse scans being used. This Filter can use this class, agnostic of iteration direction,<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> * as the same algorithm can be applied in both cases.<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> */<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> @InterfaceAudience.Private<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> private static class RangeIteration {<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> private boolean exclusive = false;<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> private boolean initialized = false;<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> private boolean foundFirstRange = false;<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> private boolean reversed = false;<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> private final List<RowRange> sortedAndMergedRanges;<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> private List<? extends BasicRowRange> ranges;<a name="line.638"></a> |
| <span class="sourceLineNo">639</span><a name="line.639"></a> |
| <span class="sourceLineNo">640</span> public RangeIteration(List<RowRange> sortedAndMergedRanges) {<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> this.sortedAndMergedRanges = sortedAndMergedRanges;<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> }<a name="line.642"></a> |
| <span class="sourceLineNo">643</span><a name="line.643"></a> |
| <span class="sourceLineNo">644</span> void initialize(boolean reversed) {<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> // Avoid double initialization<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> assert !this.initialized;<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> this.reversed = reversed;<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> if (reversed) {<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> // If we are doing a reverse scan, we can reverse the ranges (both the elements in<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> // the list as well as their start/stop key), and use the same algorithm.<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> this.ranges = flipAndReverseRanges(sortedAndMergedRanges);<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> } else {<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> this.ranges = sortedAndMergedRanges;<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> }<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> this.initialized = true;<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> }<a name="line.656"></a> |
| <span class="sourceLineNo">657</span><a name="line.657"></a> |
| <span class="sourceLineNo">658</span> /**<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> * Rebuilds the sorted ranges (by startKey) into an equivalent sorted list of ranges, only by<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> * stopKey instead. Descending order and the ReversedRowRange compareTo implementation make<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> * sure that we can use Collections.binarySearch().<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> */<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> static List<ReversedRowRange> flipAndReverseRanges(List<RowRange> ranges) {<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> List<ReversedRowRange> flippedRanges = new ArrayList<>(ranges.size());<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> for (int i = ranges.size() - 1; i >= 0; i--) {<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> RowRange origRange = ranges.get(i);<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> ReversedRowRange newRowRange = new ReversedRowRange(<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> origRange.startRow, origRange.startRowInclusive, origRange.stopRow,<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> origRange.isStopRowInclusive());<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> flippedRanges.add(newRowRange);<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> }<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> return flippedRanges;<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> }<a name="line.673"></a> |
| <span class="sourceLineNo">674</span><a name="line.674"></a> |
| <span class="sourceLineNo">675</span> /**<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> * Calculates the position where the given rowkey fits in the ranges list.<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> *<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> * @param rowKey the row key to calculate<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> * @return index the position of the row key<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> */<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> public int getNextRangeIndex(byte[] rowKey) {<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> BasicRowRange temp;<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> if (reversed) {<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> temp = new ReversedRowRange(null, true, rowKey, true);<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> } else {<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> temp = new RowRange(rowKey, true, null, true);<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> }<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> // Because we make sure that `ranges` has the correct natural ordering (given it containing<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> // RowRange or ReverseRowRange objects). This keeps us from having to have two different<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> // implementations below.<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> final int index = Collections.binarySearch(ranges, temp);<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> if (index < 0) {<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> int insertionPosition = -index - 1;<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> // check if the row key in the range before the insertion position<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> if (insertionPosition != 0 && ranges.get(insertionPosition - 1).contains(rowKey)) {<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> return insertionPosition - 1;<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> }<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> // check if the row key is before the first range<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> if (insertionPosition == 0 && !ranges.get(insertionPosition).contains(rowKey)) {<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> return ROW_BEFORE_FIRST_RANGE;<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> }<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> if (!foundFirstRange) {<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> foundFirstRange = true;<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> }<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> return insertionPosition;<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> // the row key equals one of the start keys, and the the range exclude the start key<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> if(ranges.get(index).isSearchRowInclusive() == false) {<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> exclusive = true;<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> }<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> return index;<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> }<a name="line.712"></a> |
| <span class="sourceLineNo">713</span><a name="line.713"></a> |
| <span class="sourceLineNo">714</span> /**<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> * Sets {@link #foundFirstRange} to {@code true}, indicating that we found a matching row range.<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> */<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> public void setFoundFirstRange() {<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> this.foundFirstRange = true;<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> }<a name="line.719"></a> |
| <span class="sourceLineNo">720</span><a name="line.720"></a> |
| <span class="sourceLineNo">721</span> /**<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> * Gets the RowRange at the given offset.<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> */<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> @SuppressWarnings("unchecked")<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> public <T extends BasicRowRange> T get(int i) {<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> return (T) ranges.get(i);<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> }<a name="line.727"></a> |
| <span class="sourceLineNo">728</span><a name="line.728"></a> |
| <span class="sourceLineNo">729</span> /**<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> * Returns true if the first matching row range was found.<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> */<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> public boolean hasFoundFirstRange() {<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> return foundFirstRange;<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> }<a name="line.734"></a> |
| <span class="sourceLineNo">735</span><a name="line.735"></a> |
| <span class="sourceLineNo">736</span> /**<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> * Returns true if the current range's key is exclusive<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> */<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> public boolean isExclusive() {<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> return exclusive;<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> }<a name="line.741"></a> |
| <span class="sourceLineNo">742</span><a name="line.742"></a> |
| <span class="sourceLineNo">743</span> /**<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> * Resets the exclusive flag.<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> */<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> public void resetExclusive() {<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> exclusive = false;<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> }<a name="line.748"></a> |
| <span class="sourceLineNo">749</span><a name="line.749"></a> |
| <span class="sourceLineNo">750</span> /**<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> * Returns true if this class has been initialized by calling {@link #initialize(boolean)}.<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> */<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> public boolean isInitialized() {<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> return initialized;<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> }<a name="line.755"></a> |
| <span class="sourceLineNo">756</span><a name="line.756"></a> |
| <span class="sourceLineNo">757</span> /**<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> * Returns true if we exhausted searching all row ranges.<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> */<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> public boolean isIterationComplete(int index) {<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> return index >= ranges.size();<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> }<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> }<a name="line.763"></a> |
| <span class="sourceLineNo">764</span><a name="line.764"></a> |
| <span class="sourceLineNo">765</span> @Override<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> public boolean equals(Object obj) {<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> return obj instanceof Filter && areSerializedFieldsEqual((Filter) obj);<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> }<a name="line.768"></a> |
| <span class="sourceLineNo">769</span><a name="line.769"></a> |
| <span class="sourceLineNo">770</span> @Override<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> public int hashCode() {<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> return Objects.hash(this.ranges);<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> }<a name="line.773"></a> |
| <span class="sourceLineNo">774</span>}<a name="line.774"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
