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From git-site-r...@apache.org
Subject [19/51] [partial] hbase-site git commit: Published site at .
Date Wed, 30 Aug 2017 15:14:05 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0d6dd914/devapidocs/src-html/org/apache/hadoop/hbase/client/example/ExportEndpointExample.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/example/ExportEndpointExample.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/example/ExportEndpointExample.html
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--- /dev/null
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@@ -0,0 +1,158 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<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.client.example;<a name="line.18"></a>
+<span class="sourceLineNo">019</span><a name="line.19"></a>
+<span class="sourceLineNo">020</span>import org.apache.hadoop.conf.Configuration;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import org.apache.hadoop.fs.Path;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.TableName;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.Put;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Table;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.coprocessor.Export;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.34"></a>
+<span class="sourceLineNo">035</span><a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.ArrayList;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.List;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.Map;<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>/**<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * A simple example on how to use {@link org.apache.hadoop.hbase.coprocessor.Export}.<a name="line.41"></a>
+<span class="sourceLineNo">042</span> *<a name="line.42"></a>
+<span class="sourceLineNo">043</span> * &lt;p&gt;<a name="line.43"></a>
+<span class="sourceLineNo">044</span> * For the protocol buffer definition of the ExportService, see the source file located under<a name="line.44"></a>
+<span class="sourceLineNo">045</span> * hbase-endpoint/src/main/protobuf/Export.proto.<a name="line.45"></a>
+<span class="sourceLineNo">046</span> * &lt;/p&gt;<a name="line.46"></a>
+<span class="sourceLineNo">047</span> */<a name="line.47"></a>
+<span class="sourceLineNo">048</span>public class ExportEndpointExample {<a name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span>  public static void main(String[] args) throws Throwable {<a name="line.50"></a>
+<span class="sourceLineNo">051</span>    int rowCount = 100;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>    byte[] family = Bytes.toBytes("family");<a name="line.52"></a>
+<span class="sourceLineNo">053</span>    Configuration conf = HBaseConfiguration.create();<a name="line.53"></a>
+<span class="sourceLineNo">054</span>    TableName tableName = TableName.valueOf("ExportEndpointExample");<a name="line.54"></a>
+<span class="sourceLineNo">055</span>    try (Connection con = ConnectionFactory.createConnection(conf);<a name="line.55"></a>
+<span class="sourceLineNo">056</span>         Admin admin = con.getAdmin()) {<a name="line.56"></a>
+<span class="sourceLineNo">057</span>      TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName)<a name="line.57"></a>
+<span class="sourceLineNo">058</span>              // MUST mount the export endpoint<a name="line.58"></a>
+<span class="sourceLineNo">059</span>              .addCoprocessor(Export.class.getName())<a name="line.59"></a>
+<span class="sourceLineNo">060</span>              .addColumnFamily(ColumnFamilyDescriptorBuilder.of(family))<a name="line.60"></a>
+<span class="sourceLineNo">061</span>              .build();<a name="line.61"></a>
+<span class="sourceLineNo">062</span>      admin.createTable(desc);<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span>      List&lt;Put&gt; puts = new ArrayList&lt;&gt;(rowCount);<a name="line.64"></a>
+<span class="sourceLineNo">065</span>      for (int row = 0; row != rowCount; ++row) {<a name="line.65"></a>
+<span class="sourceLineNo">066</span>        byte[] bs = Bytes.toBytes(row);<a name="line.66"></a>
+<span class="sourceLineNo">067</span>        Put put = new Put(bs);<a name="line.67"></a>
+<span class="sourceLineNo">068</span>        put.addColumn(family, bs, bs);<a name="line.68"></a>
+<span class="sourceLineNo">069</span>        puts.add(put);<a name="line.69"></a>
+<span class="sourceLineNo">070</span>      }<a name="line.70"></a>
+<span class="sourceLineNo">071</span>      try (Table table = con.getTable(tableName)) {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>        table.put(puts);<a name="line.72"></a>
+<span class="sourceLineNo">073</span>      }<a name="line.73"></a>
+<span class="sourceLineNo">074</span><a name="line.74"></a>
+<span class="sourceLineNo">075</span>      Path output = new Path("/tmp/ExportEndpointExample_output");<a name="line.75"></a>
+<span class="sourceLineNo">076</span>      Scan scan = new Scan();<a name="line.76"></a>
+<span class="sourceLineNo">077</span>      Map&lt;byte[], Export.Response&gt; result = Export.run(conf, tableName, scan, output);<a name="line.77"></a>
+<span class="sourceLineNo">078</span>      final long totalOutputRows = result.values().stream().mapToLong(v -&gt; v.getRowCount()).sum();<a name="line.78"></a>
+<span class="sourceLineNo">079</span>      final long totalOutputCells = result.values().stream().mapToLong(v -&gt; v.getCellCount()).sum();<a name="line.79"></a>
+<span class="sourceLineNo">080</span>      System.out.println("table:" + tableName);<a name="line.80"></a>
+<span class="sourceLineNo">081</span>      System.out.println("output:" + output);<a name="line.81"></a>
+<span class="sourceLineNo">082</span>      System.out.println("total rows:" + totalOutputRows);<a name="line.82"></a>
+<span class="sourceLineNo">083</span>      System.out.println("total cells:" + totalOutputCells);<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    }<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>
+
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+</pre>
+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0d6dd914/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/Export.PrivilegedWriter.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/Export.PrivilegedWriter.html b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/Export.PrivilegedWriter.html
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@@ -0,0 +1,610 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<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,<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * KIND, either express or implied.  See the License for the<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a>
+<span class="sourceLineNo">017</span> * under the License.<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.coprocessor;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import com.google.protobuf.RpcCallback;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import com.google.protobuf.RpcController;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import com.google.protobuf.Service;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.Closeable;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.security.PrivilegedExceptionAction;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.LinkedList;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.TreeMap;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.commons.logging.Log;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.commons.logging.LogFactory;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.conf.Configuration;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.fs.FileSystem;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.fs.Path;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.Cell;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.Coprocessor;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.TableName;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.Result;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.Table;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.ipc.RpcServer;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.ipc.ServerRpcController;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.mapreduce.ExportUtils;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.mapreduce.Import;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.mapreduce.ResultSerialization;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.DelegationToken;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.protobuf.generated.ExportProtos;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.regionserver.InternalScanner;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.regionserver.Region;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.regionserver.RegionScanner;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.security.User;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.security.UserProvider;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.security.token.FsDelegationToken;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.util.ArrayUtils;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.util.ByteStringer;<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.util.Triple;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.io.SequenceFile;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.io.Text;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.io.compress.CompressionCodec;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.io.compress.DefaultCodec;<a name="line.75"></a>
+<span class="sourceLineNo">076</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.76"></a>
+<span class="sourceLineNo">077</span>import org.apache.hadoop.security.token.Token;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>import org.apache.hadoop.util.GenericOptionsParser;<a name="line.78"></a>
+<span class="sourceLineNo">079</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>/**<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * Export an HBase table. Writes content to sequence files up in HDFS. Use<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * {@link Import} to read it back in again. It is implemented by the endpoint<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * technique.<a name="line.84"></a>
+<span class="sourceLineNo">085</span> *<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * @see org.apache.hadoop.hbase.mapreduce.Export<a name="line.86"></a>
+<span class="sourceLineNo">087</span> */<a name="line.87"></a>
+<span class="sourceLineNo">088</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)<a name="line.88"></a>
+<span class="sourceLineNo">089</span>@InterfaceStability.Evolving<a name="line.89"></a>
+<span class="sourceLineNo">090</span>public class Export extends ExportProtos.ExportService<a name="line.90"></a>
+<span class="sourceLineNo">091</span>        implements Coprocessor, CoprocessorService {<a name="line.91"></a>
+<span class="sourceLineNo">092</span><a name="line.92"></a>
+<span class="sourceLineNo">093</span>  private static final Log LOG = LogFactory.getLog(Export.class);<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  private static final Class&lt;? extends CompressionCodec&gt; DEFAULT_CODEC = DefaultCodec.class;<a name="line.94"></a>
+<span class="sourceLineNo">095</span>  private static final SequenceFile.CompressionType DEFAULT_TYPE = SequenceFile.CompressionType.RECORD;<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  private RegionCoprocessorEnvironment env = null;<a name="line.96"></a>
+<span class="sourceLineNo">097</span>  private UserProvider userProvider;<a name="line.97"></a>
+<span class="sourceLineNo">098</span><a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public static void main(String[] args) throws Throwable {<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    Map&lt;byte[], Response&gt; response = run(HBaseConfiguration.create(), args);<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    System.exit(response == null ? -1 : 0);<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>  @VisibleForTesting<a name="line.104"></a>
+<span class="sourceLineNo">105</span>  static Map&lt;byte[], Response&gt; run(final Configuration conf, final String[] args) throws Throwable {<a name="line.105"></a>
+<span class="sourceLineNo">106</span>    String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();<a name="line.106"></a>
+<span class="sourceLineNo">107</span>    if (!ExportUtils.isValidArguements(args)) {<a name="line.107"></a>
+<span class="sourceLineNo">108</span>      ExportUtils.usage("Wrong number of arguments: " + ArrayUtils.length(otherArgs));<a name="line.108"></a>
+<span class="sourceLineNo">109</span>      return null;<a name="line.109"></a>
+<span class="sourceLineNo">110</span>    }<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    Triple&lt;TableName, Scan, Path&gt; arguments = ExportUtils.getArgumentsFromCommandLine(conf, otherArgs);<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    return run(conf, arguments.getFirst(), arguments.getSecond(), arguments.getThird());<a name="line.112"></a>
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+<span class="sourceLineNo">114</span><a name="line.114"></a>
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+<span class="sourceLineNo">343</span>  }<a name="line.343"></a>
+<span class="sourceLineNo">344</span><a name="line.344"></a>
+<span class="sourceLineNo">345</span>  private Scan validateKey(final HRegionInfo region, final ExportProtos.ExportRequest request) throws IOException {<a name="line.345"></a>
+<span class="sourceLineNo">346</span>    Scan scan = ProtobufUtil.toScan(request.getScan());<a name="line.346"></a>
+<span class="sourceLineNo">347</span>    byte[] regionStartKey = region.getStartKey();<a name="line.347"></a>
+<span class="sourceLineNo">348</span>    byte[] originStartKey = scan.getStartRow();<a name="line.348"></a>
+<span class="sourceLineNo">349</span>    if (originStartKey == null<a name="line.349"></a>
+<span class="sourceLineNo">350</span>            || Bytes.compareTo(originStartKey, regionStartKey) &lt; 0) {<a name="line.350"></a>
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+<span class="sourceLineNo">352</span>    }<a name="line.352"></a>
+<span class="sourceLineNo">353</span>    byte[] regionEndKey = region.getEndKey();<a name="line.353"></a>
+<span class="sourceLineNo">354</span>    byte[] originEndKey = scan.getStopRow();<a name="line.354"></a>
+<span class="sourceLineNo">355</span>    if (originEndKey == null<a name="line.355"></a>
+<span class="sourceLineNo">356</span>            || Bytes.compareTo(originEndKey, regionEndKey) &gt; 0) {<a name="line.356"></a>
+<span class="sourceLineNo">357</span>      scan.setStartRow(regionEndKey);<a name="line.357"></a>
+<span class="sourceLineNo">358</span>    }<a name="line.358"></a>
+<span class="sourceLineNo">359</span>    return scan;<a name="line.359"></a>
+<span class="sourceLineNo">360</span>  }<a name="line.360"></a>
+<span class="sourceLineNo">361</span><a name="line.361"></a>
+<span class="sourceLineNo">362</span>  private static class RegionOp implements Closeable {<a name="line.362"></a>
+<span class="sourceLineNo">363</span><a name="line.363"></a>
+<span class="sourceLineNo">364</span>    private final Region region;<a name="line.364"></a>
+<span class="sourceLineNo">365</span><a name="line.365"></a>
+<span class="sourceLineNo">366</span>    RegionOp(final Region region) throws IOException {<a name="line.366"></a>
+<span class="sourceLineNo">367</span>      this.region = region;<a name="line.367"></a>
+<span class="sourceLineNo">368</span>      region.startRegionOperation();<a name="line.368"></a>
+<span class="sourceLineNo">369</span>    }<a name="line.369"></a>
+<span class="sourceLineNo">370</span><a name="line.370"></a>
+<span class="sourceLineNo">371</span>    @Override<a name="line.371"></a>
+<span class="sourceLineNo">372</span>    public void close() throws IOException {<a name="line.372"></a>
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+<span class="sourceLineNo">374</span>    }<a name="line.374"></a>
+<span class="sourceLineNo">375</span>  }<a name="line.375"></a>
+<span class="sourceLineNo">376</span><a name="line.376"></a>
+<span class="sourceLineNo">377</span>  private static class ScanCoprocessor {<a name="line.377"></a>
+<span class="sourceLineNo">378</span><a name="line.378"></a>
+<span class="sourceLineNo">379</span>    private final Region region;<a name="line.379"></a>
+<span class="sourceLineNo">380</span><a name="line.380"></a>
+<span class="sourceLineNo">381</span>    ScanCoprocessor(final Region region) {<a name="line.381"></a>
+<span class="sourceLineNo">382</span>      this.region = region;<a name="line.382"></a>
+<span class="sourceLineNo">383</span>    }<a name="line.383"></a>
+<span class="sourceLineNo">384</span><a name="line.384"></a>
+<span class="sourceLineNo">385</span>    RegionScanner checkScannerOpen(final Scan scan) throws IOException {<a name="line.385"></a>
+<span class="sourceLineNo">386</span>      RegionScanner scanner;<a name="line.386"></a>
+<span class="sourceLineNo">387</span>      if (region.getCoprocessorHost() == null) {<a name="line.387"></a>
+<span class="sourceLineNo">388</span>        scanner = region.getScanner(scan);<a name="line.388"></a>
+<span class="sourceLineNo">389</span>      } else {<a name="line.389"></a>
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+<span class="sourceLineNo">391</span>        if (scanner == null) {<a name="line.391"></a>
+<span class="sourceLineNo">392</span>          scanner = region.getScanner(scan);<a name="line.392"></a>
+<span class="sourceLineNo">393</span>        }<a name="line.393"></a>
+<span class="sourceLineNo">394</span>        scanner = region.getCoprocessorHost().postScannerOpen(scan, scanner);<a name="line.394"></a>
+<span class="sourceLineNo">395</span>      }<a name="line.395"></a>
+<span class="sourceLineNo">396</span>      if (scanner == null) {<a name="line.396"></a>
+<span class="sourceLineNo">397</span>        throw new IOException("Failed to open region scanner");<a name="line.397"></a>
+<span class="sourceLineNo">398</span>      }<a name="line.398"></a>
+<span class="sourceLineNo">399</span>      return scanner;<a name="line.399"></a>
+<span class="sourceLineNo">400</span>    }<a name="line.400"></a>
+<span class="sourceLineNo">401</span><a name="line.401"></a>
+<span class="sourceLineNo">402</span>    void checkScannerClose(final InternalScanner s) throws IOException {<a name="line.402"></a>
+<span class="sourceLineNo">403</span>      if (s == null) {<a name="line.403"></a>
+<span class="sourceLineNo">404</span>        return;<a name="line.404"></a>
+<span class="sourceLineNo">405</span>      }<a name="line.405"></a>
+<span class="sourceLineNo">406</span>      if (region.getCoprocessorHost() == null) {<a name="line.406"></a>
+<span class="sourceLineNo">407</span>        s.close();<a name="line.407"></a>
+<span class="sourceLineNo">408</span>        return;<a name="line.408"></a>
+<span class="sourceLineNo">409</span>      }<a name="line.409"></a>
+<span class="sourceLineNo">410</span>      if (region.getCoprocessorHost().preScannerClose(s)) {<a name="line.410"></a>
+<span class="sourceLineNo">411</span>        return;<a name="line.411"></a>
+<span class="sourceLineNo">412</span>      }<a name="line.412"></a>
+<span class="sourceLineNo">413</span>      try {<a name="line.413"></a>
+<span class="sourceLineNo">414</span>        s.close();<a name="line.414"></a>
+<span class="sourceLineNo">415</span>      } finally {<a name="line.415"></a>
+<span class="sourceLineNo">416</span>        region.getCoprocessorHost().postScannerClose(s);<a name="line.416"></a>
+<span class="sourceLineNo">417</span>      }<a name="line.417"></a>
+<span class="sourceLineNo">418</span>    }<a name="line.418"></a>
+<span class="sourceLineNo">419</span><a name="line.419"></a>
+<span class="sourceLineNo">420</span>    boolean preScannerNext(final InternalScanner s,<a name="line.420"></a>
+<span class="sourceLineNo">421</span>            final List&lt;Result&gt; results, final int limit) throws IOException {<a name="line.421"></a>
+<span class="sourceLineNo">422</span>      if (region.getCoprocessorHost() == null) {<a name="line.422"></a>
+<span class="sourceLineNo">423</span>        return false;<a name="line.423"></a>
+<span class="sourceLineNo">424</span>      } else {<a name="line.424"></a>
+<span class="sourceLineNo">425</span>        Boolean bypass = region.getCoprocessorHost().preScannerNext(s, results, limit);<a name="line.425"></a>
+<span class="sourceLineNo">426</span>        return bypass == null ? false : bypass;<a name="line.426"></a>
+<span class="sourceLineNo">427</span>      }<a name="line.427"></a>
+<span class="sourceLineNo">428</span>    }<a name="line.428"></a>
+<span class="sourceLineNo">429</span><a name="line.429"></a>
+<span class="sourceLineNo">430</span>    boolean postScannerNext(final InternalScanner s,<a name="line.430"></a>
+<span class="sourceLineNo">431</span>            final List&lt;Result&gt; results, final int limit, boolean hasMore)<a name="line.431"></a>
+<span class="sourceLineNo">432</span>            throws IOException {<a name="line.432"></a>
+<span class="sourceLineNo">433</span>      if (region.getCoprocessorHost() == null) {<a name="line.433"></a>
+<span class="sourceLineNo">434</span>        return false;<a name="line.434"></a>
+<span class="sourceLineNo">435</span>      } else {<a name="line.435"></a>
+<span class="sourceLineNo">436</span>        return region.getCoprocessorHost().postScannerNext(s, results, limit, hasMore);<a name="line.436"></a>
+<span class="sourceLineNo">437</span>      }<a name="line.437"></a>
+<span class="sourceLineNo">438</span>    }<a name="line.438"></a>
+<span class="sourceLineNo">439</span>  }<a name="line.439"></a>
+<span class="sourceLineNo">440</span><a name="line.440"></a>
+<span class="sourceLineNo">441</span>  private static class SecureWriter implements Closeable {<a name="line.441"></a>
+<span class="sourceLineNo">442</span>    private final PrivilegedWriter privilegedWriter;<a name="line.442"></a>
+<span class="sourceLineNo">443</span><a name="line.443"></a>
+<span class="sourceLineNo">444</span>    SecureWriter(final Configuration conf, final UserProvider userProvider, final Token userToken,<a name="line.444"></a>
+<span class="sourceLineNo">445</span>            final List&lt;SequenceFile.Writer.Option&gt; opts) throws IOException {<a name="line.445"></a>
+<span class="sourceLineNo">446</span>      privilegedWriter = new PrivilegedWriter(getActiveUser(userProvider, userToken),<a name="line.446"></a>
+<span class="sourceLineNo">447</span>        SequenceFile.createWriter(conf, opts.toArray(new SequenceFile.Writer.Option[opts.size()])));<a name="line.447"></a>
+<span class="sourceLineNo">448</span>    }<a name="line.448"></a>
+<span class="sourceLineNo">449</span><a name="line.449"></a>
+<span class="sourceLineNo">450</span>    void append(final Object key, final Object value) throws IOException {<a name="line.450"></a>
+<span class="sourceLineNo">451</span>      privilegedWriter.append(key, value);<a name="line.451"></a>
+<span class="sourceLineNo">452</span>    }<a name="line.452"></a>
+<span class="sourceLineNo">453</span><a name="line.453"></a>
+<span class="sourceLineNo">454</span>    private static User getActiveUser(final UserProvider userProvider, final Token userToken) throws IOException {<a name="line.454"></a>
+<span class="sourceLineNo">455</span>      User user = RpcServer.getRequestUser();<a name="line.455"></a>
+<span class="sourceLineNo">456</span>      if (user == null) {<a name="line.456"></a>
+<span class="sourceLineNo">457</span>        user = userProvider.getCurrent();<a name="line.457"></a>
+<span class="sourceLineNo">458</span>      }<a name="line.458"></a>
+<span class="sourceLineNo">459</span>      if (user == null &amp;&amp; userToken != null) {<a name="line.459"></a>
+<span class="sourceLineNo">460</span>        LOG.warn("No found of user credentials, but a token was got from user request");<a name="line.460"></a>
+<span class="sourceLineNo">461</span>      } else if (user != null &amp;&amp; userToken != null) {<a name="line.461"></a>
+<span class="sourceLineNo">462</span>        user.addToken(userToken);<a name="line.462"></a>
+<span class="sourceLineNo">463</span>      }<a name="line.463"></a>
+<span class="sourceLineNo">464</span>      return user;<a name="line.464"></a>
+<span class="sourceLineNo">465</span>    }<a name="line.465"></a>
+<span class="sourceLineNo">466</span><a name="line.466"></a>
+<span class="sourceLineNo">467</span>    @Override<a name="line.467"></a>
+<span class="sourceLineNo">468</span>    public void close() throws IOException {<a name="line.468"></a>
+<span class="sourceLineNo">469</span>      privilegedWriter.close();<a name="line.469"></a>
+<span class="sourceLineNo">470</span>    }<a name="line.470"></a>
+<span class="sourceLineNo">471</span>  }<a name="line.471"></a>
+<span class="sourceLineNo">472</span><a name="line.472"></a>
+<span class="sourceLineNo">473</span>  private static class PrivilegedWriter implements PrivilegedExceptionAction&lt;Boolean&gt;, Closeable {<a name="line.473"></a>
+<span class="sourceLineNo">474</span>    private final User user;<a name="line.474"></a>
+<span class="sourceLineNo">475</span>    private final SequenceFile.Writer out;<a name="line.475"></a>
+<span class="sourceLineNo">476</span>    private Object key;<a name="line.476"></a>
+<span class="sourceLineNo">477</span>    private Object value;<a name="line.477"></a>
+<span class="sourceLineNo">478</span><a name="line.478"></a>
+<span class="sourceLineNo">479</span>    PrivilegedWriter(final User user, final SequenceFile.Writer out) {<a name="line.479"></a>
+<span class="sourceLineNo">480</span>      this.user = user;<a name="line.480"></a>
+<span class="sourceLineNo">481</span>      this.out = out;<a name="line.481"></a>
+<span class="sourceLineNo">482</span>    }<a name="line.482"></a>
+<span class="sourceLineNo">483</span><a name="line.483"></a>
+<span class="sourceLineNo">484</span>    void append(final Object key, final Object value) throws IOException {<a name="line.484"></a>
+<span class="sourceLineNo">485</span>      if (user == null) {<a name="line.485"></a>
+<span class="sourceLineNo">486</span>        out.append(key, value);<a name="line.486"></a>
+<span class="sourceLineNo">487</span>      } else {<a name="line.487"></a>
+<span class="sourceLineNo">488</span>        this.key = key;<a name="line.488"></a>
+<span class="sourceLineNo">489</span>        this.value = value;<a name="line.489"></a>
+<span class="sourceLineNo">490</span>        try {<a name="line.490"></a>
+<span class="sourceLineNo">491</span>          user.runAs(this);<a name="line.491"></a>
+<span class="sourceLineNo">492</span>        } catch (InterruptedException ex) {<a name="line.492"></a>
+<span class="sourceLineNo">493</span>          throw new IOException(ex);<a name="line.493"></a>
+<span class="sourceLineNo">494</span>        }<a name="line.494"></a>
+<span class="sourceLineNo">495</span>      }<a name="line.495"></a>
+<span class="sourceLineNo">496</span>    }<a name="line.496"></a>
+<span class="sourceLineNo">497</span><a name="line.497"></a>
+<span class="sourceLineNo">498</span>    @Override<a name="line.498"></a>
+<span class="sourceLineNo">499</span>    public Boolean run() throws Exception {<a name="line.499"></a>
+<span class="sourceLineNo">500</span>      out.append(key, value);<a name="line.500"></a>
+<span class="sourceLineNo">501</span>      return true;<a name="line.501"></a>
+<span class="sourceLineNo">502</span>    }<a name="line.502"></a>
+<span class="sourceLineNo">503</span><a name="line.503"></a>
+<span class="sourceLineNo">504</span>    @Override<a name="line.504"></a>
+<span class="sourceLineNo">505</span>    public void close() throws IOException {<a name="line.505"></a>
+<span class="sourceLineNo">506</span>      out.close();<a name="line.506"></a>
+<span class="sourceLineNo">507</span>    }<a name="line.507"></a>
+<span class="sourceLineNo">508</span>  }<a name="line.508"></a>
+<span class="sourceLineNo">509</span><a name="line.509"></a>
+<span class="sourceLineNo">510</span>  public static class Response {<a name="line.510"></a>
+<span class="sourceLineNo">511</span><a name="line.511"></a>
+<span class="sourceLineNo">512</span>    private final long rowCount;<a name="line.512"></a>
+<span class="sourceLineNo">513</span>    private final long cellCount;<a name="line.513"></a>
+<span class="sourceLineNo">514</span><a name="line.514"></a>
+<span class="sourceLineNo">515</span>    private Response(ExportProtos.ExportResponse r) {<a name="line.515"></a>
+<span class="sourceLineNo">516</span>      this.rowCount = r.getRowCount();<a name="line.516"></a>
+<span class="sourceLineNo">517</span>      this.cellCount = r.getCellCount();<a name="line.517"></a>
+<span class="sourceLineNo">518</span>    }<a name="line.518"></a>
+<span class="sourceLineNo">519</span><a name="line.519"></a>
+<span class="sourceLineNo">520</span>    public long getRowCount() {<a name="line.520"></a>
+<span class="sourceLineNo">521</span>      return rowCount;<a name="line.521"></a>
+<span class="sourceLineNo">522</span>    }<a name="line.522"></a>
+<span class="sourceLineNo">523</span><a name="line.523"></a>
+<span class="sourceLineNo">524</span>    public long getCellCount() {<a name="line.524"></a>
+<span class="sourceLineNo">525</span>      return cellCount;<a name="line.525"></a>
+<span class="sourceLineNo">526</span>    }<a name="line.526"></a>
+<span class="sourceLineNo">527</span><a name="line.527"></a>
+<span class="sourceLineNo">528</span>    @Override<a name="line.528"></a>
+<span class="sourceLineNo">529</span>    public String toString() {<a name="line.529"></a>
+<span class="sourceLineNo">530</span>      StringBuilder builder = new StringBuilder(35);<a name="line.530"></a>
+<span class="sourceLineNo">531</span>      return builder.append("rowCount=")<a name="line.531"></a>
+<span class="sourceLineNo">532</span>             .append(rowCount)<a name="line.532"></a>
+<span class="sourceLineNo">533</span>             .append(", cellCount=")<a name="line.533"></a>
+<span class="sourceLineNo">534</span>             .append(cellCount)<a name="line.534"></a>
+<span class="sourceLineNo">535</span>             .toString();<a name="line.535"></a>
+<span class="sourceLineNo">536</span>    }<a name="line.536"></a>
+<span class="sourceLineNo">537</span>  }<a name="line.537"></a>
+<span class="sourceLineNo">538</span>}<a name="line.538"></a>
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+</pre>
+</div>
+</body>
+</html>


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