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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.ipc;</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">import static org.junit.Assert.assertFalse;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.junit.Assert.assertTrue;</span> |
| <span class="source-line-no">023</span><span id="line-23"></span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.File;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.io.FileOutputStream;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.io.IOException;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.nio.ByteBuffer;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.nio.channels.FileChannel;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.testclassification.RPCTests;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.testclassification.SmallTests;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.junit.After;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.junit.Before;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.junit.ClassRule;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.Test;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hbase.thirdparty.com.google.common.base.Charsets;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hbase.thirdparty.com.google.common.io.Files;</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42">@Category({ RPCTests.class, SmallTests.class })</span> |
| <span class="source-line-no">043</span><span id="line-43">public class TestBufferChain {</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> @ClassRule</span> |
| <span class="source-line-no">046</span><span id="line-46"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">047</span><span id="line-47"> HBaseClassTestRule.forClass(TestBufferChain.class);</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private File tmpFile;</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> private static final byte[][] HELLO_WORLD_CHUNKS =</span> |
| <span class="source-line-no">052</span><span id="line-52"> new byte[][] { "hello".getBytes(Charsets.UTF_8), " ".getBytes(Charsets.UTF_8),</span> |
| <span class="source-line-no">053</span><span id="line-53"> "world".getBytes(Charsets.UTF_8) };</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> @Before</span> |
| <span class="source-line-no">056</span><span id="line-56"> public void setup() throws IOException {</span> |
| <span class="source-line-no">057</span><span id="line-57"> tmpFile = File.createTempFile("TestBufferChain", "txt");</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> @After</span> |
| <span class="source-line-no">061</span><span id="line-61"> public void teardown() {</span> |
| <span class="source-line-no">062</span><span id="line-62"> tmpFile.delete();</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> @Test</span> |
| <span class="source-line-no">066</span><span id="line-66"> public void testGetBackBytesWePutIn() {</span> |
| <span class="source-line-no">067</span><span id="line-67"> ByteBuffer[] bufs = wrapArrays(HELLO_WORLD_CHUNKS);</span> |
| <span class="source-line-no">068</span><span id="line-68"> BufferChain chain = new BufferChain(bufs);</span> |
| <span class="source-line-no">069</span><span id="line-69"> assertTrue(Bytes.equals(Bytes.toBytes("hello world"), chain.getBytes()));</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> @Test</span> |
| <span class="source-line-no">073</span><span id="line-73"> public void testLimitOffset() throws IOException {</span> |
| <span class="source-line-no">074</span><span id="line-74"> ByteBuffer[] bufs = new ByteBuffer[] { stringBuf("XXXhelloYYY", 3, 5), stringBuf(" ", 0, 1),</span> |
| <span class="source-line-no">075</span><span id="line-75"> stringBuf("XXXXworldY", 4, 5) };</span> |
| <span class="source-line-no">076</span><span id="line-76"> BufferChain chain = new BufferChain(bufs);</span> |
| <span class="source-line-no">077</span><span id="line-77"> writeAndVerify(chain, "hello world");</span> |
| <span class="source-line-no">078</span><span id="line-78"> assertNoRemaining(bufs);</span> |
| <span class="source-line-no">079</span><span id="line-79"> }</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> private ByteBuffer stringBuf(String string, int position, int length) {</span> |
| <span class="source-line-no">082</span><span id="line-82"> ByteBuffer buf = ByteBuffer.wrap(string.getBytes(Charsets.UTF_8));</span> |
| <span class="source-line-no">083</span><span id="line-83"> buf.position(position);</span> |
| <span class="source-line-no">084</span><span id="line-84"> buf.limit(position + length);</span> |
| <span class="source-line-no">085</span><span id="line-85"> assertTrue(buf.hasRemaining());</span> |
| <span class="source-line-no">086</span><span id="line-86"> return buf;</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> private void assertNoRemaining(ByteBuffer[] bufs) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> for (ByteBuffer buf : bufs) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> assertFalse(buf.hasRemaining());</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> private ByteBuffer[] wrapArrays(byte[][] arrays) {</span> |
| <span class="source-line-no">096</span><span id="line-96"> ByteBuffer[] ret = new ByteBuffer[arrays.length];</span> |
| <span class="source-line-no">097</span><span id="line-97"> for (int i = 0; i < arrays.length; i++) {</span> |
| <span class="source-line-no">098</span><span id="line-98"> ret[i] = ByteBuffer.wrap(arrays[i]);</span> |
| <span class="source-line-no">099</span><span id="line-99"> }</span> |
| <span class="source-line-no">100</span><span id="line-100"> return ret;</span> |
| <span class="source-line-no">101</span><span id="line-101"> }</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> private void writeAndVerify(BufferChain chain, String string) throws IOException {</span> |
| <span class="source-line-no">104</span><span id="line-104"> FileOutputStream fos = new FileOutputStream(tmpFile);</span> |
| <span class="source-line-no">105</span><span id="line-105"> FileChannel ch = fos.getChannel();</span> |
| <span class="source-line-no">106</span><span id="line-106"> try {</span> |
| <span class="source-line-no">107</span><span id="line-107"> long remaining = string.length();</span> |
| <span class="source-line-no">108</span><span id="line-108"> while (chain.hasRemaining()) {</span> |
| <span class="source-line-no">109</span><span id="line-109"> long n = chain.write(ch);</span> |
| <span class="source-line-no">110</span><span id="line-110"> remaining -= n;</span> |
| <span class="source-line-no">111</span><span id="line-111"> }</span> |
| <span class="source-line-no">112</span><span id="line-112"> assertEquals(0, remaining);</span> |
| <span class="source-line-no">113</span><span id="line-113"> } finally {</span> |
| <span class="source-line-no">114</span><span id="line-114"> fos.close();</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"> assertFalse(chain.hasRemaining());</span> |
| <span class="source-line-no">117</span><span id="line-117"> assertEquals(string, Files.toString(tmpFile, Charsets.UTF_8));</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119">}</span> |
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| </pre> |
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