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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.io;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.junit.Assert.assertEquals;</span> |
| <span class="source-line-no">021</span><span id="line-21"></span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.ByteArrayOutputStream;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.DataInputStream;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.DataOutputStream;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.nio.ByteBuffer;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.nio.MultiByteBuff;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.testclassification.IOTests;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.testclassification.SmallTests;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.junit.ClassRule;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.junit.Test;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35">@Category({ IOTests.class, SmallTests.class })</span> |
| <span class="source-line-no">036</span><span id="line-36">public class TestMultiByteBuffInputStream {</span> |
| <span class="source-line-no">037</span><span id="line-37"></span> |
| <span class="source-line-no">038</span><span id="line-38"> @ClassRule</span> |
| <span class="source-line-no">039</span><span id="line-39"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">040</span><span id="line-40"> HBaseClassTestRule.forClass(TestMultiByteBuffInputStream.class);</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42"> @Test</span> |
| <span class="source-line-no">043</span><span id="line-43"> public void testReads() throws Exception {</span> |
| <span class="source-line-no">044</span><span id="line-44"> ByteArrayOutputStream bos = new ByteArrayOutputStream(100);</span> |
| <span class="source-line-no">045</span><span id="line-45"> DataOutputStream dos = new DataOutputStream(bos);</span> |
| <span class="source-line-no">046</span><span id="line-46"> String s = "test";</span> |
| <span class="source-line-no">047</span><span id="line-47"> int i = 128;</span> |
| <span class="source-line-no">048</span><span id="line-48"> dos.write(1);</span> |
| <span class="source-line-no">049</span><span id="line-49"> dos.writeInt(i);</span> |
| <span class="source-line-no">050</span><span id="line-50"> dos.writeBytes(s);</span> |
| <span class="source-line-no">051</span><span id="line-51"> dos.writeLong(12345L);</span> |
| <span class="source-line-no">052</span><span id="line-52"> dos.writeShort(2);</span> |
| <span class="source-line-no">053</span><span id="line-53"> dos.flush();</span> |
| <span class="source-line-no">054</span><span id="line-54"> ByteBuffer bb = ByteBuffer.wrap(bos.toByteArray());</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> // bbis contains 19 bytes</span> |
| <span class="source-line-no">057</span><span id="line-57"> // 1 byte, 4 bytes int, 4 bytes string, 8 bytes long and 2 bytes short</span> |
| <span class="source-line-no">058</span><span id="line-58"> ByteBuffInputStream bbis = new ByteBuffInputStream(new MultiByteBuff(bb));</span> |
| <span class="source-line-no">059</span><span id="line-59"> assertEquals(15 + s.length(), bbis.available());</span> |
| <span class="source-line-no">060</span><span id="line-60"> assertEquals(1, bbis.read());</span> |
| <span class="source-line-no">061</span><span id="line-61"> byte[] ib = new byte[4];</span> |
| <span class="source-line-no">062</span><span id="line-62"> bbis.read(ib);</span> |
| <span class="source-line-no">063</span><span id="line-63"> assertEquals(i, Bytes.toInt(ib));</span> |
| <span class="source-line-no">064</span><span id="line-64"> byte[] sb = new byte[s.length()];</span> |
| <span class="source-line-no">065</span><span id="line-65"> bbis.read(sb);</span> |
| <span class="source-line-no">066</span><span id="line-66"> assertEquals(s, Bytes.toString(sb));</span> |
| <span class="source-line-no">067</span><span id="line-67"> byte[] lb = new byte[8];</span> |
| <span class="source-line-no">068</span><span id="line-68"> bbis.read(lb);</span> |
| <span class="source-line-no">069</span><span id="line-69"> assertEquals(12345, Bytes.toLong(lb));</span> |
| <span class="source-line-no">070</span><span id="line-70"> assertEquals(2, bbis.available());</span> |
| <span class="source-line-no">071</span><span id="line-71"> ib = new byte[4];</span> |
| <span class="source-line-no">072</span><span id="line-72"> int read = bbis.read(ib, 0, ib.length);</span> |
| <span class="source-line-no">073</span><span id="line-73"> // We dont have 4 bytes remainig but only 2. So onlt those should be returned back</span> |
| <span class="source-line-no">074</span><span id="line-74"> assertEquals(2, read);</span> |
| <span class="source-line-no">075</span><span id="line-75"> assertEquals(2, Bytes.toShort(ib));</span> |
| <span class="source-line-no">076</span><span id="line-76"> assertEquals(0, bbis.available());</span> |
| <span class="source-line-no">077</span><span id="line-77"> // At end. The read() should return -1</span> |
| <span class="source-line-no">078</span><span id="line-78"> assertEquals(-1, bbis.read());</span> |
| <span class="source-line-no">079</span><span id="line-79"> bbis.close();</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> bb = ByteBuffer.wrap(bos.toByteArray());</span> |
| <span class="source-line-no">082</span><span id="line-82"> bbis = new ByteBuffInputStream(new MultiByteBuff(bb));</span> |
| <span class="source-line-no">083</span><span id="line-83"> DataInputStream dis = new DataInputStream(bbis);</span> |
| <span class="source-line-no">084</span><span id="line-84"> dis.read();</span> |
| <span class="source-line-no">085</span><span id="line-85"> assertEquals(i, dis.readInt());</span> |
| <span class="source-line-no">086</span><span id="line-86"> dis.close();</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> |
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| </pre> |
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