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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.util;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.nio.ByteBuffer;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.testclassification.MiscTests;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.junit.Assert;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.junit.ClassRule;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.junit.Test;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.junit.experimental.categories.Category;<a name="line.27"></a>
<span class="sourceLineNo">028</span><a name="line.28"></a>
<span class="sourceLineNo">029</span>@Category({ MiscTests.class, SmallTests.class })<a name="line.29"></a>
<span class="sourceLineNo">030</span>public class TestSimplePositionedMutableByteRange {<a name="line.30"></a>
<span class="sourceLineNo">031</span><a name="line.31"></a>
<span class="sourceLineNo">032</span> @ClassRule<a name="line.32"></a>
<span class="sourceLineNo">033</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.33"></a>
<span class="sourceLineNo">034</span> HBaseClassTestRule.forClass(TestSimplePositionedMutableByteRange.class);<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span> @Test<a name="line.36"></a>
<span class="sourceLineNo">037</span> public void testPosition() {<a name="line.37"></a>
<span class="sourceLineNo">038</span> PositionedByteRange r = new SimplePositionedMutableByteRange(new byte[5], 1, 3);<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span> // exercise single-byte put<a name="line.40"></a>
<span class="sourceLineNo">041</span> r.put(Bytes.toBytes("f")[0]).put(Bytes.toBytes("o")[0]).put(Bytes.toBytes("o")[0]);<a name="line.41"></a>
<span class="sourceLineNo">042</span> Assert.assertEquals(3, r.getPosition());<a name="line.42"></a>
<span class="sourceLineNo">043</span> Assert.assertArrayEquals(<a name="line.43"></a>
<span class="sourceLineNo">044</span> new byte[] { 0, Bytes.toBytes("f")[0], Bytes.toBytes("o")[0], Bytes.toBytes("o")[0], 0 },<a name="line.44"></a>
<span class="sourceLineNo">045</span> r.getBytes());<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span> // exercise multi-byte put<a name="line.47"></a>
<span class="sourceLineNo">048</span> r.setPosition(0);<a name="line.48"></a>
<span class="sourceLineNo">049</span> r.put(Bytes.toBytes("f")).put(Bytes.toBytes("o")).put(Bytes.toBytes("o"));<a name="line.49"></a>
<span class="sourceLineNo">050</span> Assert.assertEquals(3, r.getPosition());<a name="line.50"></a>
<span class="sourceLineNo">051</span> Assert.assertArrayEquals(<a name="line.51"></a>
<span class="sourceLineNo">052</span> new byte[] { 0, Bytes.toBytes("f")[0], Bytes.toBytes("o")[0], Bytes.toBytes("o")[0], 0 },<a name="line.52"></a>
<span class="sourceLineNo">053</span> r.getBytes());<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span> // exercise single-byte get<a name="line.55"></a>
<span class="sourceLineNo">056</span> r.setPosition(0);<a name="line.56"></a>
<span class="sourceLineNo">057</span> Assert.assertEquals(Bytes.toBytes("f")[0], r.get());<a name="line.57"></a>
<span class="sourceLineNo">058</span> Assert.assertEquals(Bytes.toBytes("o")[0], r.get());<a name="line.58"></a>
<span class="sourceLineNo">059</span> Assert.assertEquals(Bytes.toBytes("o")[0], r.get());<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span> r.setPosition(1);<a name="line.61"></a>
<span class="sourceLineNo">062</span> Assert.assertEquals(Bytes.toBytes("o")[0], r.get());<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span> // exercise multi-byte get<a name="line.64"></a>
<span class="sourceLineNo">065</span> r.setPosition(0);<a name="line.65"></a>
<span class="sourceLineNo">066</span> byte[] dst = new byte[3];<a name="line.66"></a>
<span class="sourceLineNo">067</span> r.get(dst);<a name="line.67"></a>
<span class="sourceLineNo">068</span> Assert.assertArrayEquals(Bytes.toBytes("foo"), dst);<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span> // set position to the end of the range; this should not throw.<a name="line.70"></a>
<span class="sourceLineNo">071</span> r.setPosition(3);<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> @Test<a name="line.74"></a>
<span class="sourceLineNo">075</span> public void testPutAndGetPrimitiveTypes() {<a name="line.75"></a>
<span class="sourceLineNo">076</span> PositionedByteRange pbr = new SimplePositionedMutableByteRange(100);<a name="line.76"></a>
<span class="sourceLineNo">077</span> int i1 = 18, i2 = 2;<a name="line.77"></a>
<span class="sourceLineNo">078</span> short s1 = 0;<a name="line.78"></a>
<span class="sourceLineNo">079</span> long l1 = 1234L;<a name="line.79"></a>
<span class="sourceLineNo">080</span> pbr.putInt(i1);<a name="line.80"></a>
<span class="sourceLineNo">081</span> pbr.putInt(i2);<a name="line.81"></a>
<span class="sourceLineNo">082</span> pbr.putShort(s1);<a name="line.82"></a>
<span class="sourceLineNo">083</span> pbr.putLong(l1);<a name="line.83"></a>
<span class="sourceLineNo">084</span> pbr.putVLong(0);<a name="line.84"></a>
<span class="sourceLineNo">085</span> pbr.putVLong(l1);<a name="line.85"></a>
<span class="sourceLineNo">086</span> pbr.putVLong(Long.MAX_VALUE);<a name="line.86"></a>
<span class="sourceLineNo">087</span> pbr.putVLong(Long.MIN_VALUE);<a name="line.87"></a>
<span class="sourceLineNo">088</span> // rewind<a name="line.88"></a>
<span class="sourceLineNo">089</span> pbr.setPosition(0);<a name="line.89"></a>
<span class="sourceLineNo">090</span> Assert.assertEquals(i1, pbr.getInt());<a name="line.90"></a>
<span class="sourceLineNo">091</span> Assert.assertEquals(i2, pbr.getInt());<a name="line.91"></a>
<span class="sourceLineNo">092</span> Assert.assertEquals(s1, pbr.getShort());<a name="line.92"></a>
<span class="sourceLineNo">093</span> Assert.assertEquals(l1, pbr.getLong());<a name="line.93"></a>
<span class="sourceLineNo">094</span> Assert.assertEquals(0, pbr.getVLong());<a name="line.94"></a>
<span class="sourceLineNo">095</span> Assert.assertEquals(l1, pbr.getVLong());<a name="line.95"></a>
<span class="sourceLineNo">096</span> Assert.assertEquals(Long.MAX_VALUE, pbr.getVLong());<a name="line.96"></a>
<span class="sourceLineNo">097</span> Assert.assertEquals(Long.MIN_VALUE, pbr.getVLong());<a name="line.97"></a>
<span class="sourceLineNo">098</span> }<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> @Test<a name="line.100"></a>
<span class="sourceLineNo">101</span> public void testPutGetAPIsCompareWithBBAPIs() {<a name="line.101"></a>
<span class="sourceLineNo">102</span> // confirm that the long/int/short writing is same as BBs<a name="line.102"></a>
<span class="sourceLineNo">103</span> PositionedByteRange pbr = new SimplePositionedMutableByteRange(100);<a name="line.103"></a>
<span class="sourceLineNo">104</span> int i1 = -234, i2 = 2;<a name="line.104"></a>
<span class="sourceLineNo">105</span> short s1 = 0;<a name="line.105"></a>
<span class="sourceLineNo">106</span> long l1 = 1234L;<a name="line.106"></a>
<span class="sourceLineNo">107</span> pbr.putInt(i1);<a name="line.107"></a>
<span class="sourceLineNo">108</span> pbr.putShort(s1);<a name="line.108"></a>
<span class="sourceLineNo">109</span> pbr.putInt(i2);<a name="line.109"></a>
<span class="sourceLineNo">110</span> pbr.putLong(l1);<a name="line.110"></a>
<span class="sourceLineNo">111</span> // rewind<a name="line.111"></a>
<span class="sourceLineNo">112</span> pbr.setPosition(0);<a name="line.112"></a>
<span class="sourceLineNo">113</span> Assert.assertEquals(i1, pbr.getInt());<a name="line.113"></a>
<span class="sourceLineNo">114</span> Assert.assertEquals(s1, pbr.getShort());<a name="line.114"></a>
<span class="sourceLineNo">115</span> Assert.assertEquals(i2, pbr.getInt());<a name="line.115"></a>
<span class="sourceLineNo">116</span> Assert.assertEquals(l1, pbr.getLong());<a name="line.116"></a>
<span class="sourceLineNo">117</span> // Read back using BB APIs<a name="line.117"></a>
<span class="sourceLineNo">118</span> ByteBuffer bb = ByteBuffer.wrap(pbr.getBytes());<a name="line.118"></a>
<span class="sourceLineNo">119</span> Assert.assertEquals(i1, bb.getInt());<a name="line.119"></a>
<span class="sourceLineNo">120</span> Assert.assertEquals(s1, bb.getShort());<a name="line.120"></a>
<span class="sourceLineNo">121</span> Assert.assertEquals(i2, bb.getInt());<a name="line.121"></a>
<span class="sourceLineNo">122</span> Assert.assertEquals(l1, bb.getLong());<a name="line.122"></a>
<span class="sourceLineNo">123</span> }<a name="line.123"></a>
<span class="sourceLineNo">124</span>}<a name="line.124"></a>
</pre>
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