| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.util;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.OutputStream;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Collection;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span><a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span>/**<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * Utility methods for working with {@link ByteRange}.<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> */<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>@InterfaceAudience.Public<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>public class ByteRangeUtils {<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> public static int numEqualPrefixBytes(ByteRange left, ByteRange right, int rightInnerOffset) {<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> int maxCompares = Math.min(left.getLength(), right.getLength() - rightInnerOffset);<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> final byte[] lbytes = left.getBytes(), rbytes = right.getBytes();<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> final int loffset = left.getOffset(), roffset = right.getOffset();<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> for (int i = 0; i < maxCompares; ++i) {<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> if (lbytes[loffset + i] != rbytes[roffset + rightInnerOffset + i]) {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> return i;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> }<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> }<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> return maxCompares;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> }<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> public static ArrayList<byte[]> copyToNewArrays(Collection<ByteRange> ranges) {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> if (ranges == null) {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> return new ArrayList<>(0);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> }<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> ArrayList<byte[]> arrays = Lists.newArrayListWithCapacity(ranges.size());<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> for (ByteRange range : ranges) {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> arrays.add(range.deepCopyToNewArray());<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> }<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> return arrays;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> }<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> public static ArrayList<ByteRange> fromArrays(Collection<byte[]> arrays) {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> if (arrays == null) {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> return new ArrayList<>(0);<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> }<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> ArrayList<ByteRange> ranges = Lists.newArrayListWithCapacity(arrays.size());<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> for (byte[] array : arrays) {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> ranges.add(new SimpleMutableByteRange(array));<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> }<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> return ranges;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> public static void write(OutputStream os, ByteRange byteRange) throws IOException {<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> os.write(byteRange.getBytes(), byteRange.getOffset(), byteRange.getLength());<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> }<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public static void write(OutputStream os, ByteRange byteRange, int byteRangeInnerOffset)<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> throws IOException {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> os.write(byteRange.getBytes(), byteRange.getOffset() + byteRangeInnerOffset,<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> byteRange.getLength() - byteRangeInnerOffset);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span>}<a name="line.80"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
