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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.codec;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.InputStream;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.OutputStream;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.commons.io.IOUtils;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.Cell;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.CellBuilderType;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.ExtendedCellBuilder;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.ExtendedCellBuilderFactory;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.io.ByteBuffInputStream;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>/**<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * Basic Cell codec that just writes out all the individual elements of a Cell. Uses ints<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * delimiting all lengths. Profligate. Needs tune up.<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Note: This will not write tags of a Cell.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> */<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>public class CellCodec implements Codec {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> static class CellEncoder extends BaseEncoder {<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> CellEncoder(final OutputStream out) {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> super(out);<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> }<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> @Override<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> public void write(Cell cell) throws IOException {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> checkFlushed();<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> // Row<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> write(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> // Column family<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> write(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> // Qualifier<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> // Version<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> this.out.write(Bytes.toBytes(cell.getTimestamp()));<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> // Type<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> this.out.write(cell.getTypeByte());<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> // Value<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> write(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> // MvccVersion<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> this.out.write(Bytes.toBytes(cell.getSequenceId()));<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> }<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> /**<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * Write int length followed by array bytes.<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * @param bytes<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * @param offset<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @param length<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * @throws IOException<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> */<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private void write(final byte [] bytes, final int offset, final int length)<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> throws IOException {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> // TODO add BB backed os check and do for write. Pass Cell<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> this.out.write(Bytes.toBytes(length));<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> this.out.write(bytes, offset, length);<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> |
| <span class="sourceLineNo">081</span> static class CellDecoder extends BaseDecoder {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private final ExtendedCellBuilder cellBuilder = ExtendedCellBuilderFactory.create(CellBuilderType.SHALLOW_COPY);<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> public CellDecoder(final InputStream in) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> super(in);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> @Override<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> protected Cell parseCell() throws IOException {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> byte [] row = readByteArray(this.in);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> byte [] family = readByteArray(in);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> byte [] qualifier = readByteArray(in);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> byte [] longArray = new byte[Bytes.SIZEOF_LONG];<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> IOUtils.readFully(this.in, longArray);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> long timestamp = Bytes.toLong(longArray);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> byte type = (byte) this.in.read();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> byte[] value = readByteArray(in);<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> // Read memstore version<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> byte[] memstoreTSArray = new byte[Bytes.SIZEOF_LONG];<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> IOUtils.readFully(this.in, memstoreTSArray);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> long memstoreTS = Bytes.toLong(memstoreTSArray);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> return cellBuilder.clear()<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> .setRow(row)<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> .setFamily(family)<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> .setQualifier(qualifier)<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> .setTimestamp(timestamp)<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> .setType(type)<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> .setValue(value)<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> .setSequenceId(memstoreTS)<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> .build();<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> /**<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * @return Byte array read from the stream.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * @throws IOException<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> */<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> private byte [] readByteArray(final InputStream in) throws IOException {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> byte [] intArray = new byte[Bytes.SIZEOF_INT];<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> IOUtils.readFully(in, intArray);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> int length = Bytes.toInt(intArray);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> byte [] bytes = new byte [length];<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> IOUtils.readFully(in, bytes);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> return bytes;<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> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> @Override<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> public Decoder getDecoder(InputStream is) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> return new CellDecoder(is);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> }<a name="line.129"></a> |
| <span class="sourceLineNo">130</span><a name="line.130"></a> |
| <span class="sourceLineNo">131</span> @Override<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> public Decoder getDecoder(ByteBuff buf) {<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> return getDecoder(new ByteBuffInputStream(buf));<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> @Override<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> public Encoder getEncoder(OutputStream os) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> return new CellEncoder(os);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> }<a name="line.139"></a> |
| <span class="sourceLineNo">140</span>}<a name="line.140"></a> |
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| </pre> |
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