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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><a name="line.18"></a>
 <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.replication;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
 <span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a>
 <span class="sourceLineNo">022</span>import java.util.Collections;<a name="line.22"></a>
 <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
 <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.Cell;<a name="line.24"></a>
 <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.25"></a>
 <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.26"></a>
 <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.27"></a>
 <span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a>
 <span class="sourceLineNo">029</span><a name="line.29"></a>
 <span class="sourceLineNo">030</span>/**<a name="line.30"></a>
 <span class="sourceLineNo">031</span> * A {@link WALEntryFilter} which contains multiple filters and applies them<a name="line.31"></a>
 <span class="sourceLineNo">032</span> * in chain order<a name="line.32"></a>
 <span class="sourceLineNo">033</span> */<a name="line.33"></a>
 <span class="sourceLineNo">034</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.REPLICATION)<a name="line.34"></a>
 <span class="sourceLineNo">035</span>public class ChainWALEntryFilter implements WALEntryFilter {<a name="line.35"></a>
 <span class="sourceLineNo">036</span><a name="line.36"></a>
 <span class="sourceLineNo">037</span>  private final WALEntryFilter[] filters;<a name="line.37"></a>
 <span class="sourceLineNo">038</span>  private WALCellFilter[] cellFilters;<a name="line.38"></a>
 <span class="sourceLineNo">039</span><a name="line.39"></a>
 <span class="sourceLineNo">040</span>  public ChainWALEntryFilter(WALEntryFilter...filters) {<a name="line.40"></a>
 <span class="sourceLineNo">041</span>    this.filters = filters;<a name="line.41"></a>
 <span class="sourceLineNo">042</span>    initCellFilters();<a name="line.42"></a>
 <span class="sourceLineNo">043</span>  }<a name="line.43"></a>
 <span class="sourceLineNo">044</span><a name="line.44"></a>
 <span class="sourceLineNo">045</span>  public ChainWALEntryFilter(List&lt;WALEntryFilter&gt; filters) {<a name="line.45"></a>
 <span class="sourceLineNo">046</span>    ArrayList&lt;WALEntryFilter&gt; rawFilters = new ArrayList&lt;&gt;(filters.size());<a name="line.46"></a>
 <span class="sourceLineNo">047</span>    // flatten the chains<a name="line.47"></a>
 <span class="sourceLineNo">048</span>    for (WALEntryFilter filter : filters) {<a name="line.48"></a>
 <span class="sourceLineNo">049</span>      if (filter instanceof ChainWALEntryFilter) {<a name="line.49"></a>
 <span class="sourceLineNo">050</span>        Collections.addAll(rawFilters, ((ChainWALEntryFilter) filter).filters);<a name="line.50"></a>
 <span class="sourceLineNo">051</span>      } else {<a name="line.51"></a>
 <span class="sourceLineNo">052</span>        rawFilters.add(filter);<a name="line.52"></a>
 <span class="sourceLineNo">053</span>      }<a name="line.53"></a>
 <span class="sourceLineNo">054</span>    }<a name="line.54"></a>
 <span class="sourceLineNo">055</span>    this.filters = rawFilters.toArray(new WALEntryFilter[rawFilters.size()]);<a name="line.55"></a>
 <span class="sourceLineNo">056</span>    initCellFilters();<a name="line.56"></a>
 <span class="sourceLineNo">057</span>  }<a name="line.57"></a>
 <span class="sourceLineNo">058</span><a name="line.58"></a>
 <span class="sourceLineNo">059</span>  public void initCellFilters() {<a name="line.59"></a>
 <span class="sourceLineNo">060</span>    ArrayList&lt;WALCellFilter&gt; cellFilters = new ArrayList&lt;&gt;(filters.length);<a name="line.60"></a>
 <span class="sourceLineNo">061</span>    for (WALEntryFilter filter : filters) {<a name="line.61"></a>
 <span class="sourceLineNo">062</span>      if (filter instanceof WALCellFilter) {<a name="line.62"></a>
 <span class="sourceLineNo">063</span>        cellFilters.add((WALCellFilter) filter);<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>    this.cellFilters = cellFilters.toArray(new WALCellFilter[cellFilters.size()]);<a name="line.66"></a>
 <span class="sourceLineNo">067</span>  }<a name="line.67"></a>
 <span class="sourceLineNo">068</span><a name="line.68"></a>
 <span class="sourceLineNo">069</span>  @Override<a name="line.69"></a>
 <span class="sourceLineNo">070</span>  public Entry filter(Entry entry) {<a name="line.70"></a>
 <span class="sourceLineNo">071</span>    entry = filterEntry(entry);<a name="line.71"></a>
 <span class="sourceLineNo">072</span>    if (entry == null) {<a name="line.72"></a>
 <span class="sourceLineNo">073</span>      return null;<a name="line.73"></a>
 <span class="sourceLineNo">074</span>    }<a name="line.74"></a>
 <span class="sourceLineNo">075</span><a name="line.75"></a>
 <span class="sourceLineNo">076</span>    filterCells(entry);<a name="line.76"></a>
 <span class="sourceLineNo">077</span>    return entry;<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>  protected Entry filterEntry(Entry entry) {<a name="line.80"></a>
 <span class="sourceLineNo">081</span>    for (WALEntryFilter filter : filters) {<a name="line.81"></a>
 <span class="sourceLineNo">082</span>      if (entry == null) {<a name="line.82"></a>
 <span class="sourceLineNo">083</span>        return null;<a name="line.83"></a>
 <span class="sourceLineNo">084</span>      }<a name="line.84"></a>
 <span class="sourceLineNo">085</span>      entry = filter.filter(entry);<a name="line.85"></a>
 <span class="sourceLineNo">086</span>    }<a name="line.86"></a>
 <span class="sourceLineNo">087</span>    return entry;<a name="line.87"></a>
 <span class="sourceLineNo">088</span>  }<a name="line.88"></a>
 <span class="sourceLineNo">089</span><a name="line.89"></a>
 <span class="sourceLineNo">090</span>  protected void filterCells(Entry entry) {<a name="line.90"></a>
 <span class="sourceLineNo">091</span>    if (entry == null || cellFilters.length == 0) {<a name="line.91"></a>
 <span class="sourceLineNo">092</span>      return;<a name="line.92"></a>
 <span class="sourceLineNo">093</span>    }<a name="line.93"></a>
 <span class="sourceLineNo">094</span>    WALUtil.filterCells(entry.getEdit(), c -&gt; filterCell(entry, c));<a name="line.94"></a>
 <span class="sourceLineNo">095</span>  }<a name="line.95"></a>
 <span class="sourceLineNo">096</span><a name="line.96"></a>
 <span class="sourceLineNo">097</span>  private Cell filterCell(Entry entry, Cell cell) {<a name="line.97"></a>
 <span class="sourceLineNo">098</span>    for (WALCellFilter filter : cellFilters) {<a name="line.98"></a>
 <span class="sourceLineNo">099</span>      cell = filter.filterCell(entry, cell);<a name="line.99"></a>
 <span class="sourceLineNo">100</span>      if (cell == null) {<a name="line.100"></a>
 <span class="sourceLineNo">101</span>        break;<a name="line.101"></a>
 <span class="sourceLineNo">102</span>      }<a name="line.102"></a>
 <span class="sourceLineNo">103</span>    }<a name="line.103"></a>
 <span class="sourceLineNo">104</span>    return cell;<a name="line.104"></a>
 <span class="sourceLineNo">105</span>  }<a name="line.105"></a>
 <span class="sourceLineNo">106</span>}<a name="line.106"></a>


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	<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
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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><a name="line.18"></a>
	<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.replication;<a name="line.19"></a>
	<span class="sourceLineNo">020</span><a name="line.20"></a>
	<span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a>
	<span class="sourceLineNo">022</span>import java.util.Collections;<a name="line.22"></a>
	<span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
	<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.Cell;<a name="line.24"></a>
	<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.25"></a>
	<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.26"></a>
	<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.27"></a>
	<span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a>
	<span class="sourceLineNo">029</span><a name="line.29"></a>
	<span class="sourceLineNo">030</span>/**<a name="line.30"></a>
	<span class="sourceLineNo">031</span> * A {@link WALEntryFilter} which contains multiple filters and applies them<a name="line.31"></a>
	<span class="sourceLineNo">032</span> * in chain order<a name="line.32"></a>
	<span class="sourceLineNo">033</span> */<a name="line.33"></a>
	<span class="sourceLineNo">034</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.REPLICATION)<a name="line.34"></a>
	<span class="sourceLineNo">035</span>public class ChainWALEntryFilter implements WALEntryFilter {<a name="line.35"></a>
	<span class="sourceLineNo">036</span><a name="line.36"></a>
	<span class="sourceLineNo">037</span> private final WALEntryFilter[] filters;<a name="line.37"></a>
	<span class="sourceLineNo">038</span> private WALCellFilter[] cellFilters;<a name="line.38"></a>
	<span class="sourceLineNo">039</span><a name="line.39"></a>
	<span class="sourceLineNo">040</span> public ChainWALEntryFilter(WALEntryFilter...filters) {<a name="line.40"></a>
	<span class="sourceLineNo">041</span> this.filters = filters;<a name="line.41"></a>
	<span class="sourceLineNo">042</span> initCellFilters();<a name="line.42"></a>
	<span class="sourceLineNo">043</span> }<a name="line.43"></a>
	<span class="sourceLineNo">044</span><a name="line.44"></a>
	<span class="sourceLineNo">045</span> public ChainWALEntryFilter(List<WALEntryFilter> filters) {<a name="line.45"></a>
	<span class="sourceLineNo">046</span> ArrayList<WALEntryFilter> rawFilters = new ArrayList<>(filters.size());<a name="line.46"></a>
	<span class="sourceLineNo">047</span> // flatten the chains<a name="line.47"></a>
	<span class="sourceLineNo">048</span> for (WALEntryFilter filter : filters) {<a name="line.48"></a>
	<span class="sourceLineNo">049</span> if (filter instanceof ChainWALEntryFilter) {<a name="line.49"></a>
	<span class="sourceLineNo">050</span> Collections.addAll(rawFilters, ((ChainWALEntryFilter) filter).filters);<a name="line.50"></a>
	<span class="sourceLineNo">051</span> } else {<a name="line.51"></a>
	<span class="sourceLineNo">052</span> rawFilters.add(filter);<a name="line.52"></a>
	<span class="sourceLineNo">053</span> }<a name="line.53"></a>
	<span class="sourceLineNo">054</span> }<a name="line.54"></a>
	<span class="sourceLineNo">055</span> this.filters = rawFilters.toArray(new WALEntryFilter[rawFilters.size()]);<a name="line.55"></a>
	<span class="sourceLineNo">056</span> initCellFilters();<a name="line.56"></a>
	<span class="sourceLineNo">057</span> }<a name="line.57"></a>
	<span class="sourceLineNo">058</span><a name="line.58"></a>
	<span class="sourceLineNo">059</span> public void initCellFilters() {<a name="line.59"></a>
	<span class="sourceLineNo">060</span> ArrayList<WALCellFilter> cellFilters = new ArrayList<>(filters.length);<a name="line.60"></a>
	<span class="sourceLineNo">061</span> for (WALEntryFilter filter : filters) {<a name="line.61"></a>
	<span class="sourceLineNo">062</span> if (filter instanceof WALCellFilter) {<a name="line.62"></a>
	<span class="sourceLineNo">063</span> cellFilters.add((WALCellFilter) filter);<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> this.cellFilters = cellFilters.toArray(new WALCellFilter[cellFilters.size()]);<a name="line.66"></a>
	<span class="sourceLineNo">067</span> }<a name="line.67"></a>
	<span class="sourceLineNo">068</span><a name="line.68"></a>
	<span class="sourceLineNo">069</span> @Override<a name="line.69"></a>
	<span class="sourceLineNo">070</span> public Entry filter(Entry entry) {<a name="line.70"></a>
	<span class="sourceLineNo">071</span> entry = filterEntry(entry);<a name="line.71"></a>
	<span class="sourceLineNo">072</span> if (entry == null) {<a name="line.72"></a>
	<span class="sourceLineNo">073</span> return null;<a name="line.73"></a>
	<span class="sourceLineNo">074</span> }<a name="line.74"></a>
	<span class="sourceLineNo">075</span><a name="line.75"></a>
	<span class="sourceLineNo">076</span> filterCells(entry);<a name="line.76"></a>
	<span class="sourceLineNo">077</span> return entry;<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> protected Entry filterEntry(Entry entry) {<a name="line.80"></a>
	<span class="sourceLineNo">081</span> for (WALEntryFilter filter : filters) {<a name="line.81"></a>
	<span class="sourceLineNo">082</span> if (entry == null) {<a name="line.82"></a>
	<span class="sourceLineNo">083</span> return null;<a name="line.83"></a>
	<span class="sourceLineNo">084</span> }<a name="line.84"></a>
	<span class="sourceLineNo">085</span> entry = filter.filter(entry);<a name="line.85"></a>
	<span class="sourceLineNo">086</span> }<a name="line.86"></a>
	<span class="sourceLineNo">087</span> return entry;<a name="line.87"></a>
	<span class="sourceLineNo">088</span> }<a name="line.88"></a>
	<span class="sourceLineNo">089</span><a name="line.89"></a>
	<span class="sourceLineNo">090</span> protected void filterCells(Entry entry) {<a name="line.90"></a>
	<span class="sourceLineNo">091</span> if (entry == null \|\| cellFilters.length == 0) {<a name="line.91"></a>
	<span class="sourceLineNo">092</span> return;<a name="line.92"></a>
	<span class="sourceLineNo">093</span> }<a name="line.93"></a>
	<span class="sourceLineNo">094</span> WALUtil.filterCells(entry.getEdit(), c -> filterCell(entry, c));<a name="line.94"></a>
	<span class="sourceLineNo">095</span> }<a name="line.95"></a>
	<span class="sourceLineNo">096</span><a name="line.96"></a>
	<span class="sourceLineNo">097</span> private Cell filterCell(Entry entry, Cell cell) {<a name="line.97"></a>
	<span class="sourceLineNo">098</span> for (WALCellFilter filter : cellFilters) {<a name="line.98"></a>
	<span class="sourceLineNo">099</span> cell = filter.filterCell(entry, cell);<a name="line.99"></a>
	<span class="sourceLineNo">100</span> if (cell == null) {<a name="line.100"></a>
	<span class="sourceLineNo">101</span> break;<a name="line.101"></a>
	<span class="sourceLineNo">102</span> }<a name="line.102"></a>
	<span class="sourceLineNo">103</span> }<a name="line.103"></a>
	<span class="sourceLineNo">104</span> return cell;<a name="line.104"></a>
	<span class="sourceLineNo">105</span> }<a name="line.105"></a>
	<span class="sourceLineNo">106</span>}<a name="line.106"></a>




























































	</pre>
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