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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 org.apache.hadoop.hbase.Cell;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>/**<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * An hash key for ROWCOL bloom. This assumes the cells to be serialized in the Keyvalue<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * serialization format with Empty column family. Note that the byte representing the family length<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * is considered to be 0<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> */<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>@InterfaceAudience.Private<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>public class RowColBloomHashKey extends CellHashKey {<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span> private final int rowLength;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> private final int qualLength;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> public RowColBloomHashKey(Cell cell) {<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> super(cell);<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> rowLength = cell.getRowLength();<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> // We don't consider the family length for ROWCOL bloom. So subtract the famLen from the<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> // length calculation. Timestamp and type are of no relevance here<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> qualLength = cell.getQualifierLength();<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> }<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span> @Override<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> public byte get(int offset) {<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> // For ROW_COL blooms we use bytes<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> // <RK length> (2 bytes) , <RK>, 0 (one byte CF length), <CQ>, <TS> (8 btes), <TYPE> ( 1 byte)<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> if (offset < Bytes.SIZEOF_SHORT) {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> // assign locally<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> int rowlen = rowLength;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> byte b = (byte) rowlen;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> if (offset == 0) {<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> rowlen >>= 8;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> b = (byte) rowlen;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> }<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> return b;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> }<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> int refLen = Bytes.SIZEOF_SHORT + rowLength;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> if (offset < refLen) {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> return PrivateCellUtil.getRowByte(t, offset - Bytes.SIZEOF_SHORT);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> }<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> if (offset == refLen) {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> // The fam length should return 0 assuming there is no column family.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> // Because for ROWCOL blooms family is not considered<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> return 0;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> }<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> refLen += qualLength + Bytes.SIZEOF_BYTE;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> // skip the family len because actual cells may have family also<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> if (offset < refLen) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> return PrivateCellUtil.getQualifierByte(t,<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> offset - (Bytes.SIZEOF_SHORT + rowLength + Bytes.SIZEOF_BYTE));<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> }<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> // TODO : check if ts and type can be removed<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> refLen += KeyValue.TIMESTAMP_SIZE;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> if (offset < refLen) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> return LATEST_TS[offset - (Bytes.SIZEOF_SHORT + rowLength + qualLength + Bytes.SIZEOF_BYTE)];<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> return MAX_TYPE;<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> @Override<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public int length() {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> // For ROW_COL blooms we use bytes<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> // <RK length> (2 bytes) , <RK>, 0 (one byte CF length), <CQ>, <TS> (8 btes), <TYPE> ( 1 byte)<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> return KeyValue.ROW_LENGTH_SIZE + this.t.getRowLength() + KeyValue.FAMILY_LENGTH_SIZE<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> + this.t.getQualifierLength() + KeyValue.TIMESTAMP_TYPE_SIZE;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span>}<a name="line.88"></a> |
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