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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.codec;</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 java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.InputStream;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.OutputStream;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.commons.io.IOUtils;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.CellBuilderType;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.ExtendedCell;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.ExtendedCellBuilder;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.ExtendedCellBuilderFactory;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HBaseInterfaceAudience;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.io.ByteBuffInputStream;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.nio.ByteBuff;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">033</span><span id="line-33"></span> |
| <span class="source-line-no">034</span><span id="line-34">/**</span> |
| <span class="source-line-no">035</span><span id="line-35"> * Basic Cell codec that just writes out all the individual elements of a Cell. Uses ints delimiting</span> |
| <span class="source-line-no">036</span><span id="line-36"> * all lengths. Profligate. Needs tune up. Note: This will not write tags of a Cell.</span> |
| <span class="source-line-no">037</span><span id="line-37"> */</span> |
| <span class="source-line-no">038</span><span id="line-38">@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)</span> |
| <span class="source-line-no">039</span><span id="line-39">public class CellCodec implements Codec {</span> |
| <span class="source-line-no">040</span><span id="line-40"> static class CellEncoder extends BaseEncoder {</span> |
| <span class="source-line-no">041</span><span id="line-41"> CellEncoder(final OutputStream out) {</span> |
| <span class="source-line-no">042</span><span id="line-42"> super(out);</span> |
| <span class="source-line-no">043</span><span id="line-43"> }</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> @Override</span> |
| <span class="source-line-no">046</span><span id="line-46"> public void write(ExtendedCell cell) throws IOException {</span> |
| <span class="source-line-no">047</span><span id="line-47"> checkFlushed();</span> |
| <span class="source-line-no">048</span><span id="line-48"> // Row</span> |
| <span class="source-line-no">049</span><span id="line-49"> write(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());</span> |
| <span class="source-line-no">050</span><span id="line-50"> // Column family</span> |
| <span class="source-line-no">051</span><span id="line-51"> write(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());</span> |
| <span class="source-line-no">052</span><span id="line-52"> // Qualifier</span> |
| <span class="source-line-no">053</span><span id="line-53"> write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());</span> |
| <span class="source-line-no">054</span><span id="line-54"> // Version</span> |
| <span class="source-line-no">055</span><span id="line-55"> this.out.write(Bytes.toBytes(cell.getTimestamp()));</span> |
| <span class="source-line-no">056</span><span id="line-56"> // Type</span> |
| <span class="source-line-no">057</span><span id="line-57"> this.out.write(cell.getTypeByte());</span> |
| <span class="source-line-no">058</span><span id="line-58"> // Value</span> |
| <span class="source-line-no">059</span><span id="line-59"> write(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());</span> |
| <span class="source-line-no">060</span><span id="line-60"> // MvccVersion</span> |
| <span class="source-line-no">061</span><span id="line-61"> this.out.write(Bytes.toBytes(cell.getSequenceId()));</span> |
| <span class="source-line-no">062</span><span id="line-62"> }</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"> * Write int length followed by array bytes.</span> |
| <span class="source-line-no">066</span><span id="line-66"> */</span> |
| <span class="source-line-no">067</span><span id="line-67"> private void write(final byte[] bytes, final int offset, final int length) throws IOException {</span> |
| <span class="source-line-no">068</span><span id="line-68"> // TODO add BB backed os check and do for write. Pass Cell</span> |
| <span class="source-line-no">069</span><span id="line-69"> this.out.write(Bytes.toBytes(length));</span> |
| <span class="source-line-no">070</span><span id="line-70"> this.out.write(bytes, offset, length);</span> |
| <span class="source-line-no">071</span><span id="line-71"> }</span> |
| <span class="source-line-no">072</span><span id="line-72"> }</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> static class CellDecoder extends BaseDecoder {</span> |
| <span class="source-line-no">075</span><span id="line-75"> private final ExtendedCellBuilder cellBuilder =</span> |
| <span class="source-line-no">076</span><span id="line-76"> ExtendedCellBuilderFactory.create(CellBuilderType.SHALLOW_COPY);</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> public CellDecoder(final InputStream in) {</span> |
| <span class="source-line-no">079</span><span id="line-79"> super(in);</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> @Override</span> |
| <span class="source-line-no">083</span><span id="line-83"> protected ExtendedCell parseCell() throws IOException {</span> |
| <span class="source-line-no">084</span><span id="line-84"> byte[] row = readByteArray(this.in);</span> |
| <span class="source-line-no">085</span><span id="line-85"> byte[] family = readByteArray(in);</span> |
| <span class="source-line-no">086</span><span id="line-86"> byte[] qualifier = readByteArray(in);</span> |
| <span class="source-line-no">087</span><span id="line-87"> byte[] longArray = new byte[Bytes.SIZEOF_LONG];</span> |
| <span class="source-line-no">088</span><span id="line-88"> IOUtils.readFully(this.in, longArray);</span> |
| <span class="source-line-no">089</span><span id="line-89"> long timestamp = Bytes.toLong(longArray);</span> |
| <span class="source-line-no">090</span><span id="line-90"> byte type = (byte) this.in.read();</span> |
| <span class="source-line-no">091</span><span id="line-91"> byte[] value = readByteArray(in);</span> |
| <span class="source-line-no">092</span><span id="line-92"> // Read memstore version</span> |
| <span class="source-line-no">093</span><span id="line-93"> byte[] memstoreTSArray = new byte[Bytes.SIZEOF_LONG];</span> |
| <span class="source-line-no">094</span><span id="line-94"> IOUtils.readFully(this.in, memstoreTSArray);</span> |
| <span class="source-line-no">095</span><span id="line-95"> long memstoreTS = Bytes.toLong(memstoreTSArray);</span> |
| <span class="source-line-no">096</span><span id="line-96"> return cellBuilder.clear().setRow(row).setFamily(family).setQualifier(qualifier)</span> |
| <span class="source-line-no">097</span><span id="line-97"> .setTimestamp(timestamp).setType(type).setValue(value).setSequenceId(memstoreTS).build();</span> |
| <span class="source-line-no">098</span><span id="line-98"> }</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> /** Returns Byte array read from the stream. n */</span> |
| <span class="source-line-no">101</span><span id="line-101"> private byte[] readByteArray(final InputStream in) throws IOException {</span> |
| <span class="source-line-no">102</span><span id="line-102"> byte[] intArray = new byte[Bytes.SIZEOF_INT];</span> |
| <span class="source-line-no">103</span><span id="line-103"> IOUtils.readFully(in, intArray);</span> |
| <span class="source-line-no">104</span><span id="line-104"> int length = Bytes.toInt(intArray);</span> |
| <span class="source-line-no">105</span><span id="line-105"> byte[] bytes = new byte[length];</span> |
| <span class="source-line-no">106</span><span id="line-106"> IOUtils.readFully(in, bytes);</span> |
| <span class="source-line-no">107</span><span id="line-107"> return bytes;</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"> }</span> |
| <span class="source-line-no">110</span><span id="line-110"></span> |
| <span class="source-line-no">111</span><span id="line-111"> @Override</span> |
| <span class="source-line-no">112</span><span id="line-112"> public Decoder getDecoder(InputStream is) {</span> |
| <span class="source-line-no">113</span><span id="line-113"> return new CellDecoder(is);</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> @Override</span> |
| <span class="source-line-no">117</span><span id="line-117"> public Decoder getDecoder(ByteBuff buf) {</span> |
| <span class="source-line-no">118</span><span id="line-118"> return getDecoder(new ByteBuffInputStream(buf));</span> |
| <span class="source-line-no">119</span><span id="line-119"> }</span> |
| <span class="source-line-no">120</span><span id="line-120"></span> |
| <span class="source-line-no">121</span><span id="line-121"> @Override</span> |
| <span class="source-line-no">122</span><span id="line-122"> public Encoder getEncoder(OutputStream os) {</span> |
| <span class="source-line-no">123</span><span id="line-123"> return new CellEncoder(os);</span> |
| <span class="source-line-no">124</span><span id="line-124"> }</span> |
| <span class="source-line-no">125</span><span id="line-125">}</span> |
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| </pre> |
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