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From st...@apache.org
Subject svn commit: r1620690 [38/40] - in /hbase/hbase.apache.org/trunk: ./ apidocs/org/apache/hadoop/hbase/client/ apidocs/org/apache/hadoop/hbase/client/class-use/ apidocs/org/apache/hadoop/hbase/coprocessor/ apidocs/org/apache/hadoop/hbase/coprocessor/class...
Date Tue, 26 Aug 2014 18:49:10 GMT
Added: hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html
URL: http://svn.apache.org/viewvc/hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html?rev=1620690&view=auto
==============================================================================
--- hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html (added)
+++ hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html Tue Aug 26 18:49:07 2014
@@ -0,0 +1,712 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+<title>DefaultVisibilityLabelServiceImpl xref</title>
+<link type="text/css" rel="stylesheet" href="../../../../../../stylesheet.css" />
+</head>
+<body>
+<div id="overview"><a href="../../../../../../../apidocs/org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html">View Javadoc</a></div><pre>
+
+<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
+<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_javadoccomment"> * or more contributor license agreements.  See the NOTICE file</em>
+<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
+<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_javadoccomment"> * regarding copyright ownership.  The ASF licenses this file</em>
+<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
+<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
+<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_javadoccomment"> * with the License.  You may obtain a copy of the License at</em>
+<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_javadoccomment"> *</em>
+<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_javadoccomment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
+<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_javadoccomment"> *</em>
+<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
+<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
+<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
+<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
+<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_javadoccomment"> * limitations under the License.</em>
+<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase.security.visibility;
+<a class="jxr_linenumber" name="19" href="#19">19</a>  
+<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.apache.hadoop.hbase.TagType.VISIBILITY_TAG_TYPE;
+<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.apache.hadoop.hbase.security.visibility.VisibilityConstants.LABELS_TABLE_FAMILY;
+<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.apache.hadoop.hbase.security.visibility.VisibilityConstants.LABELS_TABLE_NAME;
+<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.apache.hadoop.hbase.security.visibility.VisibilityConstants.LABEL_QUALIFIER;
+<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.apache.hadoop.hbase.security.visibility.VisibilityConstants.SORTED_ORDINAL_SERIALIZATION_FORMAT;
+<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.apache.hadoop.hbase.security.visibility.VisibilityUtils.SYSTEM_LABEL;
+<a class="jxr_linenumber" name="26" href="#26">26</a>  
+<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.io.ByteArrayOutputStream;
+<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.io.DataOutputStream;
+<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
+<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
+<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> java.util.BitSet;
+<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> java.util.Collections;
+<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> java.util.HashMap;
+<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
+<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> java.util.List;
+<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> java.util.Map;
+<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> java.util.Set;
+<a class="jxr_linenumber" name="38" href="#38">38</a>  
+<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
+<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
+<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.classification.InterfaceAudience;
+<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.conf.Configuration;
+<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.Cell;
+<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.CellUtil;
+<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HConstants.OperationStatusCode;
+<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.Tag;
+<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Delete;
+<a class="jxr_linenumber" name="48" href="#48">48</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Mutation;
+<a class="jxr_linenumber" name="49" href="#49">49</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Put;
+<a class="jxr_linenumber" name="50" href="#50">50</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Scan;
+<a class="jxr_linenumber" name="51" href="#51">51</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
+<a class="jxr_linenumber" name="52" href="#52">52</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.filter.Filter;
+<a class="jxr_linenumber" name="53" href="#53">53</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.io.util.StreamUtils;
+<a class="jxr_linenumber" name="54" href="#54">54</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.regionserver.HRegion;
+<a class="jxr_linenumber" name="55" href="#55">55</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.regionserver.OperationStatus;
+<a class="jxr_linenumber" name="56" href="#56">56</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.regionserver.RegionScanner;
+<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.AccessDeniedException;
+<a class="jxr_linenumber" name="58" href="#58">58</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.User;
+<a class="jxr_linenumber" name="59" href="#59">59</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.access.AccessControlLists;
+<a class="jxr_linenumber" name="60" href="#60">60</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.visibility.expression.ExpressionNode;
+<a class="jxr_linenumber" name="61" href="#61">61</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.visibility.expression.LeafExpressionNode;
+<a class="jxr_linenumber" name="62" href="#62">62</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.visibility.expression.NonLeafExpressionNode;
+<a class="jxr_linenumber" name="63" href="#63">63</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.security.visibility.expression.Operator;
+<a class="jxr_linenumber" name="64" href="#64">64</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.Bytes;
+<a class="jxr_linenumber" name="65" href="#65">65</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.Pair;
+<a class="jxr_linenumber" name="66" href="#66">66</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
+<a class="jxr_linenumber" name="67" href="#67">67</a>  
+<a class="jxr_linenumber" name="68" href="#68">68</a>  <strong class="jxr_keyword">import</strong> com.google.common.collect.Lists;
+<a class="jxr_linenumber" name="69" href="#69">69</a>  
+<a class="jxr_linenumber" name="70" href="#70">70</a>  @InterfaceAudience.Private
+<a class="jxr_linenumber" name="71" href="#71">71</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html">DefaultVisibilityLabelServiceImpl</a> <strong class="jxr_keyword">implements</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityLabelService.html">VisibilityLabelService</a> {
+<a class="jxr_linenumber" name="72" href="#72">72</a>  
+<a class="jxr_linenumber" name="73" href="#73">73</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(DefaultVisibilityLabelServiceImpl.<strong class="jxr_keyword">class</strong>);
+<a class="jxr_linenumber" name="74" href="#74">74</a>  
+<a class="jxr_linenumber" name="75" href="#75">75</a>    <em class="jxr_comment">// "system" label is having an ordinal value 1.</em>
+<a class="jxr_linenumber" name="76" href="#76">76</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> SYSTEM_LABEL_ORDINAL = 1;
+<a class="jxr_linenumber" name="77" href="#77">77</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a>[] LABELS_TABLE_TAGS = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a>[1];
+<a class="jxr_linenumber" name="78" href="#78">78</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte[] DUMMY_VALUE = <strong class="jxr_keyword">new</strong> byte[0];
+<a class="jxr_linenumber" name="79" href="#79">79</a>  
+<a class="jxr_linenumber" name="80" href="#80">80</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">volatile</strong> <strong class="jxr_keyword">int</strong> ordinalCounter = -1;
+<a class="jxr_linenumber" name="81" href="#81">81</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/ExpressionParser.html">ExpressionParser</a> expressionParser = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/ExpressionParser.html">ExpressionParser</a>();
+<a class="jxr_linenumber" name="82" href="#82">82</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/ExpressionExpander.html">ExpressionExpander</a> expressionExpander = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/ExpressionExpander.html">ExpressionExpander</a>();
+<a class="jxr_linenumber" name="83" href="#83">83</a>    <strong class="jxr_keyword">private</strong> Configuration conf;
+<a class="jxr_linenumber" name="84" href="#84">84</a>    <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegion.html">HRegion</a> labelsRegion;
+<a class="jxr_linenumber" name="85" href="#85">85</a>    <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityLabelsCache.html">VisibilityLabelsCache</a> labelsCache;
+<a class="jxr_linenumber" name="86" href="#86">86</a>    <strong class="jxr_keyword">private</strong> List&lt;ScanLabelGenerator&gt; scanLabelGenerators;
+<a class="jxr_linenumber" name="87" href="#87">87</a>  
+<a class="jxr_linenumber" name="88" href="#88">88</a>    <strong class="jxr_keyword">static</strong> {
+<a class="jxr_linenumber" name="89" href="#89">89</a>      ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
+<a class="jxr_linenumber" name="90" href="#90">90</a>      DataOutputStream dos = <strong class="jxr_keyword">new</strong> DataOutputStream(baos);
+<a class="jxr_linenumber" name="91" href="#91">91</a>      <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="92" href="#92">92</a>        StreamUtils.writeRawVInt32(dos, SYSTEM_LABEL_ORDINAL);
+<a class="jxr_linenumber" name="93" href="#93">93</a>      } <strong class="jxr_keyword">catch</strong> (IOException e) {
+<a class="jxr_linenumber" name="94" href="#94">94</a>        <em class="jxr_comment">// We write to a byte array. No Exception can happen.</em>
+<a class="jxr_linenumber" name="95" href="#95">95</a>      }
+<a class="jxr_linenumber" name="96" href="#96">96</a>      LABELS_TABLE_TAGS[0] = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a>(VISIBILITY_TAG_TYPE, baos.toByteArray());
+<a class="jxr_linenumber" name="97" href="#97">97</a>    }
+<a class="jxr_linenumber" name="98" href="#98">98</a>  
+<a class="jxr_linenumber" name="99" href="#99">99</a>    <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/DefaultVisibilityLabelServiceImpl.html">DefaultVisibilityLabelServiceImpl</a>() {
+<a class="jxr_linenumber" name="100" href="#100">100</a> 
+<a class="jxr_linenumber" name="101" href="#101">101</a>   }
+<a class="jxr_linenumber" name="102" href="#102">102</a> 
+<a class="jxr_linenumber" name="103" href="#103">103</a>   @Override
+<a class="jxr_linenumber" name="104" href="#104">104</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setConf(Configuration conf) {
+<a class="jxr_linenumber" name="105" href="#105">105</a>     <strong class="jxr_keyword">this</strong>.conf = conf;
+<a class="jxr_linenumber" name="106" href="#106">106</a>   }
+<a class="jxr_linenumber" name="107" href="#107">107</a> 
+<a class="jxr_linenumber" name="108" href="#108">108</a>   @Override
+<a class="jxr_linenumber" name="109" href="#109">109</a>   <strong class="jxr_keyword">public</strong> Configuration getConf() {
+<a class="jxr_linenumber" name="110" href="#110">110</a>     <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.conf;
+<a class="jxr_linenumber" name="111" href="#111">111</a>   }
+<a class="jxr_linenumber" name="112" href="#112">112</a> 
+<a class="jxr_linenumber" name="113" href="#113">113</a>   @Override
+<a class="jxr_linenumber" name="114" href="#114">114</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> init(<a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionCoprocessorEnvironment.html">RegionCoprocessorEnvironment</a> e) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="115" href="#115">115</a>     <a href="../../../../../../org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.html">ZooKeeperWatcher</a> zk = e.getRegionServerServices().getZooKeeper();
+<a class="jxr_linenumber" name="116" href="#116">116</a>     <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="117" href="#117">117</a>       labelsCache = VisibilityLabelsCache.createAndGet(zk, <strong class="jxr_keyword">this</strong>.conf);
+<a class="jxr_linenumber" name="118" href="#118">118</a>     } <strong class="jxr_keyword">catch</strong> (IOException ioe) {
+<a class="jxr_linenumber" name="119" href="#119">119</a>       LOG.error(<span class="jxr_string">"Error creating VisibilityLabelsCache"</span>, ioe);
+<a class="jxr_linenumber" name="120" href="#120">120</a>       <strong class="jxr_keyword">throw</strong> ioe;
+<a class="jxr_linenumber" name="121" href="#121">121</a>     }
+<a class="jxr_linenumber" name="122" href="#122">122</a>     <strong class="jxr_keyword">this</strong>.scanLabelGenerators = VisibilityUtils.getScanLabelGenerators(<strong class="jxr_keyword">this</strong>.conf);
+<a class="jxr_linenumber" name="123" href="#123">123</a>     <strong class="jxr_keyword">if</strong> (e.getRegion().getRegionInfo().getTable().equals(LABELS_TABLE_NAME)) {
+<a class="jxr_linenumber" name="124" href="#124">124</a>       <strong class="jxr_keyword">this</strong>.labelsRegion = e.getRegion();
+<a class="jxr_linenumber" name="125" href="#125">125</a>       Pair&lt;Map&lt;String, Integer&gt;, Map&lt;String, List&lt;Integer&gt;&gt;&gt; labelsAndUserAuths =
+<a class="jxr_linenumber" name="126" href="#126">126</a>           extractLabelsAndAuths(getExistingLabelsWithAuths());
+<a class="jxr_linenumber" name="127" href="#127">127</a>       Map&lt;String, Integer&gt; labels = labelsAndUserAuths.getFirst();
+<a class="jxr_linenumber" name="128" href="#128">128</a>       Map&lt;String, List&lt;Integer&gt;&gt; userAuths = labelsAndUserAuths.getSecond();
+<a class="jxr_linenumber" name="129" href="#129">129</a>       <em class="jxr_comment">// Add the "system" label if it is not added into the system yet</em>
+<a class="jxr_linenumber" name="130" href="#130">130</a>       addSystemLabel(<strong class="jxr_keyword">this</strong>.labelsRegion, labels, userAuths);
+<a class="jxr_linenumber" name="131" href="#131">131</a>       <strong class="jxr_keyword">int</strong> ordinal = SYSTEM_LABEL_ORDINAL; <em class="jxr_comment">// Ordinal 1 is reserved for "system" label.</em>
+<a class="jxr_linenumber" name="132" href="#132">132</a>       <strong class="jxr_keyword">for</strong> (Integer i : labels.values()) {
+<a class="jxr_linenumber" name="133" href="#133">133</a>         <strong class="jxr_keyword">if</strong> (i &gt; ordinal) {
+<a class="jxr_linenumber" name="134" href="#134">134</a>           ordinal = i;
+<a class="jxr_linenumber" name="135" href="#135">135</a>         }
+<a class="jxr_linenumber" name="136" href="#136">136</a>       }
+<a class="jxr_linenumber" name="137" href="#137">137</a>       <strong class="jxr_keyword">this</strong>.ordinalCounter = ordinal + 1;
+<a class="jxr_linenumber" name="138" href="#138">138</a>       <strong class="jxr_keyword">if</strong> (labels.size() &gt; 0) {
+<a class="jxr_linenumber" name="139" href="#139">139</a>         <em class="jxr_comment">// If there is no data need not write to zk</em>
+<a class="jxr_linenumber" name="140" href="#140">140</a>         byte[] serialized = VisibilityUtils.getDataToWriteToZooKeeper(labels);
+<a class="jxr_linenumber" name="141" href="#141">141</a>         <strong class="jxr_keyword">this</strong>.labelsCache.writeToZookeeper(serialized, <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="142" href="#142">142</a>         <strong class="jxr_keyword">this</strong>.labelsCache.refreshLabelsCache(serialized);
+<a class="jxr_linenumber" name="143" href="#143">143</a>       }
+<a class="jxr_linenumber" name="144" href="#144">144</a>       <strong class="jxr_keyword">if</strong> (userAuths.size() &gt; 0) {
+<a class="jxr_linenumber" name="145" href="#145">145</a>         byte[] serialized = VisibilityUtils.getUserAuthsDataToWriteToZooKeeper(userAuths);
+<a class="jxr_linenumber" name="146" href="#146">146</a>         <strong class="jxr_keyword">this</strong>.labelsCache.writeToZookeeper(serialized, false);
+<a class="jxr_linenumber" name="147" href="#147">147</a>         <strong class="jxr_keyword">this</strong>.labelsCache.refreshUserAuthsCache(serialized);
+<a class="jxr_linenumber" name="148" href="#148">148</a>       }
+<a class="jxr_linenumber" name="149" href="#149">149</a>     }
+<a class="jxr_linenumber" name="150" href="#150">150</a>   }
+<a class="jxr_linenumber" name="151" href="#151">151</a> 
+<a class="jxr_linenumber" name="152" href="#152">152</a>   <strong class="jxr_keyword">protected</strong> List&lt;List&lt;Cell&gt;&gt; getExistingLabelsWithAuths() <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="153" href="#153">153</a>     <a href="../../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> scan = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a>();
+<a class="jxr_linenumber" name="154" href="#154">154</a>     <a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionScanner.html">RegionScanner</a> scanner = labelsRegion.getScanner(scan);
+<a class="jxr_linenumber" name="155" href="#155">155</a>     List&lt;List&lt;Cell&gt;&gt; existingLabels = <strong class="jxr_keyword">new</strong> ArrayList&lt;List&lt;Cell&gt;&gt;();
+<a class="jxr_linenumber" name="156" href="#156">156</a>     <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="157" href="#157">157</a>       <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
+<a class="jxr_linenumber" name="158" href="#158">158</a>         List&lt;Cell&gt; cells = <strong class="jxr_keyword">new</strong> ArrayList&lt;Cell&gt;();
+<a class="jxr_linenumber" name="159" href="#159">159</a>         scanner.next(cells);
+<a class="jxr_linenumber" name="160" href="#160">160</a>         <strong class="jxr_keyword">if</strong> (cells.isEmpty()) {
+<a class="jxr_linenumber" name="161" href="#161">161</a>           <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="162" href="#162">162</a>         }
+<a class="jxr_linenumber" name="163" href="#163">163</a>         existingLabels.add(cells);
+<a class="jxr_linenumber" name="164" href="#164">164</a>       }
+<a class="jxr_linenumber" name="165" href="#165">165</a>     } <strong class="jxr_keyword">finally</strong> {
+<a class="jxr_linenumber" name="166" href="#166">166</a>       scanner.close();
+<a class="jxr_linenumber" name="167" href="#167">167</a>     }
+<a class="jxr_linenumber" name="168" href="#168">168</a>     <strong class="jxr_keyword">return</strong> existingLabels;
+<a class="jxr_linenumber" name="169" href="#169">169</a>   }
+<a class="jxr_linenumber" name="170" href="#170">170</a> 
+<a class="jxr_linenumber" name="171" href="#171">171</a>   <strong class="jxr_keyword">protected</strong> Pair&lt;Map&lt;String, Integer&gt;, Map&lt;String, List&lt;Integer&gt;&gt;&gt; extractLabelsAndAuths(
+<a class="jxr_linenumber" name="172" href="#172">172</a>       List&lt;List&lt;Cell&gt;&gt; labelDetails) {
+<a class="jxr_linenumber" name="173" href="#173">173</a>     Map&lt;String, Integer&gt; labels = <strong class="jxr_keyword">new</strong> HashMap&lt;String, Integer&gt;();
+<a class="jxr_linenumber" name="174" href="#174">174</a>     Map&lt;String, List&lt;Integer&gt;&gt; userAuths = <strong class="jxr_keyword">new</strong> HashMap&lt;String, List&lt;Integer&gt;&gt;();
+<a class="jxr_linenumber" name="175" href="#175">175</a>     <strong class="jxr_keyword">for</strong> (List&lt;Cell&gt; cells : labelDetails) {
+<a class="jxr_linenumber" name="176" href="#176">176</a>       <strong class="jxr_keyword">for</strong> (Cell cell : cells) {
+<a class="jxr_linenumber" name="177" href="#177">177</a>         <strong class="jxr_keyword">if</strong> (Bytes.equals(cell.getQualifierArray(), cell.getQualifierOffset(),
+<a class="jxr_linenumber" name="178" href="#178">178</a>             cell.getQualifierLength(), LABEL_QUALIFIER, 0, LABEL_QUALIFIER.length)) {
+<a class="jxr_linenumber" name="179" href="#179">179</a>           labels.put(
+<a class="jxr_linenumber" name="180" href="#180">180</a>               Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength()),
+<a class="jxr_linenumber" name="181" href="#181">181</a>               Bytes.toInt(cell.getRowArray(), cell.getRowOffset()));
+<a class="jxr_linenumber" name="182" href="#182">182</a>         } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="183" href="#183">183</a>           <em class="jxr_comment">// These are user cells who has authorization for this label</em>
+<a class="jxr_linenumber" name="184" href="#184">184</a>           String user = Bytes.toString(cell.getQualifierArray(), cell.getQualifierOffset(),
+<a class="jxr_linenumber" name="185" href="#185">185</a>               cell.getQualifierLength());
+<a class="jxr_linenumber" name="186" href="#186">186</a>           List&lt;Integer&gt; auths = userAuths.get(user);
+<a class="jxr_linenumber" name="187" href="#187">187</a>           <strong class="jxr_keyword">if</strong> (auths == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="188" href="#188">188</a>             auths = <strong class="jxr_keyword">new</strong> ArrayList&lt;Integer&gt;();
+<a class="jxr_linenumber" name="189" href="#189">189</a>             userAuths.put(user, auths);
+<a class="jxr_linenumber" name="190" href="#190">190</a>           }
+<a class="jxr_linenumber" name="191" href="#191">191</a>           auths.add(Bytes.toInt(cell.getRowArray(), cell.getRowOffset()));
+<a class="jxr_linenumber" name="192" href="#192">192</a>         }
+<a class="jxr_linenumber" name="193" href="#193">193</a>       }
+<a class="jxr_linenumber" name="194" href="#194">194</a>     }
+<a class="jxr_linenumber" name="195" href="#195">195</a>     <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Pair&lt;Map&lt;String, Integer&gt;, Map&lt;String, List&lt;Integer&gt;&gt;&gt;(labels, userAuths);
+<a class="jxr_linenumber" name="196" href="#196">196</a>   }
+<a class="jxr_linenumber" name="197" href="#197">197</a> 
+<a class="jxr_linenumber" name="198" href="#198">198</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> addSystemLabel(<a href="../../../../../../org/apache/hadoop/hbase/regionserver/HRegion.html">HRegion</a> region, Map&lt;String, Integer&gt; labels,
+<a class="jxr_linenumber" name="199" href="#199">199</a>       Map&lt;String, List&lt;Integer&gt;&gt; userAuths) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="200" href="#200">200</a>     <strong class="jxr_keyword">if</strong> (!labels.containsKey(SYSTEM_LABEL)) {
+<a class="jxr_linenumber" name="201" href="#201">201</a>       <a href="../../../../../../org/apache/hadoop/hbase/client/Put.html">Put</a> p = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Put.html">Put</a>(Bytes.toBytes(SYSTEM_LABEL_ORDINAL));
+<a class="jxr_linenumber" name="202" href="#202">202</a>       p.addImmutable(LABELS_TABLE_FAMILY, LABEL_QUALIFIER, Bytes.toBytes(SYSTEM_LABEL));
+<a class="jxr_linenumber" name="203" href="#203">203</a>       <em class="jxr_comment">// Set auth for "system" label for all super users.</em>
+<a class="jxr_linenumber" name="204" href="#204">204</a>       List&lt;String&gt; superUsers = getSystemAndSuperUsers();
+<a class="jxr_linenumber" name="205" href="#205">205</a>       <strong class="jxr_keyword">for</strong> (String superUser : superUsers) {
+<a class="jxr_linenumber" name="206" href="#206">206</a>         p.addImmutable(LABELS_TABLE_FAMILY, Bytes.toBytes(superUser), DUMMY_VALUE,
+<a class="jxr_linenumber" name="207" href="#207">207</a>             LABELS_TABLE_TAGS);
+<a class="jxr_linenumber" name="208" href="#208">208</a>       }
+<a class="jxr_linenumber" name="209" href="#209">209</a>       region.put(p);
+<a class="jxr_linenumber" name="210" href="#210">210</a>       labels.put(SYSTEM_LABEL, SYSTEM_LABEL_ORDINAL);
+<a class="jxr_linenumber" name="211" href="#211">211</a>       <strong class="jxr_keyword">for</strong> (String superUser : superUsers) {
+<a class="jxr_linenumber" name="212" href="#212">212</a>         List&lt;Integer&gt; auths = userAuths.get(superUser);
+<a class="jxr_linenumber" name="213" href="#213">213</a>         <strong class="jxr_keyword">if</strong> (auths == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="214" href="#214">214</a>           auths = <strong class="jxr_keyword">new</strong> ArrayList&lt;Integer&gt;(1);
+<a class="jxr_linenumber" name="215" href="#215">215</a>           userAuths.put(superUser, auths);
+<a class="jxr_linenumber" name="216" href="#216">216</a>         }
+<a class="jxr_linenumber" name="217" href="#217">217</a>         auths.add(SYSTEM_LABEL_ORDINAL);
+<a class="jxr_linenumber" name="218" href="#218">218</a>       }
+<a class="jxr_linenumber" name="219" href="#219">219</a>     }
+<a class="jxr_linenumber" name="220" href="#220">220</a>   }
+<a class="jxr_linenumber" name="221" href="#221">221</a> 
+<a class="jxr_linenumber" name="222" href="#222">222</a>   <strong class="jxr_keyword">protected</strong> List&lt;String&gt; getSystemAndSuperUsers() <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="223" href="#223">223</a>     <a href="../../../../../../org/apache/hadoop/hbase/security/User.html">User</a> user = User.getCurrent();
+<a class="jxr_linenumber" name="224" href="#224">224</a>     <strong class="jxr_keyword">if</strong> (user == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="225" href="#225">225</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Unable to obtain the current user, "</span>
+<a class="jxr_linenumber" name="226" href="#226">226</a>           + <span class="jxr_string">"authorization checks for internal operations will not work correctly!"</span>);
+<a class="jxr_linenumber" name="227" href="#227">227</a>     }
+<a class="jxr_linenumber" name="228" href="#228">228</a>     <strong class="jxr_keyword">if</strong> (LOG.isTraceEnabled()) {
+<a class="jxr_linenumber" name="229" href="#229">229</a>       LOG.trace(<span class="jxr_string">"Current user name is "</span> + user.getShortName());
+<a class="jxr_linenumber" name="230" href="#230">230</a>     }
+<a class="jxr_linenumber" name="231" href="#231">231</a>     String currentUser = user.getShortName();
+<a class="jxr_linenumber" name="232" href="#232">232</a>     List&lt;String&gt; superUsers = Lists.asList(currentUser,
+<a class="jxr_linenumber" name="233" href="#233">233</a>         <strong class="jxr_keyword">this</strong>.conf.getStrings(AccessControlLists.SUPERUSER_CONF_KEY, <strong class="jxr_keyword">new</strong> String[0]));
+<a class="jxr_linenumber" name="234" href="#234">234</a>     <strong class="jxr_keyword">return</strong> superUsers;
+<a class="jxr_linenumber" name="235" href="#235">235</a>   }
+<a class="jxr_linenumber" name="236" href="#236">236</a> 
+<a class="jxr_linenumber" name="237" href="#237">237</a>   @Override
+<a class="jxr_linenumber" name="238" href="#238">238</a>   <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] addLabels(List&lt;byte[]&gt; labels) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="239" href="#239">239</a>     assert labelsRegion != <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="240" href="#240">240</a>     <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] finalOpStatus = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[labels.size()];
+<a class="jxr_linenumber" name="241" href="#241">241</a>     List&lt;Mutation&gt; puts = <strong class="jxr_keyword">new</strong> ArrayList&lt;Mutation&gt;(labels.size());
+<a class="jxr_linenumber" name="242" href="#242">242</a>     <strong class="jxr_keyword">int</strong> i = 0;
+<a class="jxr_linenumber" name="243" href="#243">243</a>     <strong class="jxr_keyword">for</strong> (byte[] label : labels) {
+<a class="jxr_linenumber" name="244" href="#244">244</a>       String labelStr = Bytes.toString(label);
+<a class="jxr_linenumber" name="245" href="#245">245</a>       <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.labelsCache.getLabelOrdinal(labelStr) &gt; 0) {
+<a class="jxr_linenumber" name="246" href="#246">246</a>         finalOpStatus[i] = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>(OperationStatusCode.FAILURE,
+<a class="jxr_linenumber" name="247" href="#247">247</a>             <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/LabelAlreadyExistsException.html">LabelAlreadyExistsException</a>(<span class="jxr_string">"Label '"</span> + labelStr + <span class="jxr_string">"' already exists"</span>));
+<a class="jxr_linenumber" name="248" href="#248">248</a>       } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="249" href="#249">249</a>         <a href="../../../../../../org/apache/hadoop/hbase/client/Put.html">Put</a> p = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Put.html">Put</a>(Bytes.toBytes(ordinalCounter));
+<a class="jxr_linenumber" name="250" href="#250">250</a>         p.addImmutable(LABELS_TABLE_FAMILY, LABEL_QUALIFIER, label, LABELS_TABLE_TAGS);
+<a class="jxr_linenumber" name="251" href="#251">251</a>         <strong class="jxr_keyword">if</strong> (LOG.isDebugEnabled()) {
+<a class="jxr_linenumber" name="252" href="#252">252</a>           LOG.debug(<span class="jxr_string">"Adding the label "</span> + labelStr);
+<a class="jxr_linenumber" name="253" href="#253">253</a>         }
+<a class="jxr_linenumber" name="254" href="#254">254</a>         puts.add(p);
+<a class="jxr_linenumber" name="255" href="#255">255</a>         ordinalCounter++;
+<a class="jxr_linenumber" name="256" href="#256">256</a>       }
+<a class="jxr_linenumber" name="257" href="#257">257</a>       i++;
+<a class="jxr_linenumber" name="258" href="#258">258</a>     }
+<a class="jxr_linenumber" name="259" href="#259">259</a>     <strong class="jxr_keyword">if</strong> (mutateLabelsRegion(puts, finalOpStatus)) {
+<a class="jxr_linenumber" name="260" href="#260">260</a>       updateZk(<strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="261" href="#261">261</a>     }
+<a class="jxr_linenumber" name="262" href="#262">262</a>     <strong class="jxr_keyword">return</strong> finalOpStatus;
+<a class="jxr_linenumber" name="263" href="#263">263</a>   }
+<a class="jxr_linenumber" name="264" href="#264">264</a> 
+<a class="jxr_linenumber" name="265" href="#265">265</a>   @Override
+<a class="jxr_linenumber" name="266" href="#266">266</a>   <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] setAuths(byte[] user, List&lt;byte[]&gt; authLabels) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="267" href="#267">267</a>     assert labelsRegion != <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="268" href="#268">268</a>     <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] finalOpStatus = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[authLabels.size()];
+<a class="jxr_linenumber" name="269" href="#269">269</a>     List&lt;Mutation&gt; puts = <strong class="jxr_keyword">new</strong> ArrayList&lt;Mutation&gt;(authLabels.size());
+<a class="jxr_linenumber" name="270" href="#270">270</a>     <strong class="jxr_keyword">int</strong> i = 0;
+<a class="jxr_linenumber" name="271" href="#271">271</a>     <strong class="jxr_keyword">for</strong> (byte[] auth : authLabels) {
+<a class="jxr_linenumber" name="272" href="#272">272</a>       String authStr = Bytes.toString(auth);
+<a class="jxr_linenumber" name="273" href="#273">273</a>       <strong class="jxr_keyword">int</strong> labelOrdinal = <strong class="jxr_keyword">this</strong>.labelsCache.getLabelOrdinal(authStr);
+<a class="jxr_linenumber" name="274" href="#274">274</a>       <strong class="jxr_keyword">if</strong> (labelOrdinal == 0) {
+<a class="jxr_linenumber" name="275" href="#275">275</a>         <em class="jxr_comment">// This label is not yet added. 1st this should be added to the system</em>
+<a class="jxr_linenumber" name="276" href="#276">276</a>         finalOpStatus[i] = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>(OperationStatusCode.FAILURE,
+<a class="jxr_linenumber" name="277" href="#277">277</a>             <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/InvalidLabelException.html">InvalidLabelException</a>(<span class="jxr_string">"Label '"</span> + authStr + <span class="jxr_string">"' doesn't exists"</span>));
+<a class="jxr_linenumber" name="278" href="#278">278</a>       } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="279" href="#279">279</a>         <a href="../../../../../../org/apache/hadoop/hbase/client/Put.html">Put</a> p = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Put.html">Put</a>(Bytes.toBytes(labelOrdinal));
+<a class="jxr_linenumber" name="280" href="#280">280</a>         p.addImmutable(LABELS_TABLE_FAMILY, user, DUMMY_VALUE, LABELS_TABLE_TAGS);
+<a class="jxr_linenumber" name="281" href="#281">281</a>         puts.add(p);
+<a class="jxr_linenumber" name="282" href="#282">282</a>       }
+<a class="jxr_linenumber" name="283" href="#283">283</a>       i++;
+<a class="jxr_linenumber" name="284" href="#284">284</a>     }
+<a class="jxr_linenumber" name="285" href="#285">285</a>     <strong class="jxr_keyword">if</strong> (mutateLabelsRegion(puts, finalOpStatus)) {
+<a class="jxr_linenumber" name="286" href="#286">286</a>       updateZk(false);
+<a class="jxr_linenumber" name="287" href="#287">287</a>     }
+<a class="jxr_linenumber" name="288" href="#288">288</a>     <strong class="jxr_keyword">return</strong> finalOpStatus;
+<a class="jxr_linenumber" name="289" href="#289">289</a>   }
+<a class="jxr_linenumber" name="290" href="#290">290</a> 
+<a class="jxr_linenumber" name="291" href="#291">291</a>   @Override
+<a class="jxr_linenumber" name="292" href="#292">292</a>   <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] clearAuths(byte[] user, List&lt;byte[]&gt; authLabels) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="293" href="#293">293</a>     assert labelsRegion != <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="294" href="#294">294</a>     <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] finalOpStatus = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[authLabels.size()];
+<a class="jxr_linenumber" name="295" href="#295">295</a>     List&lt;String&gt; currentAuths = <strong class="jxr_keyword">this</strong>.getAuths(user, <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="296" href="#296">296</a>     List&lt;Mutation&gt; deletes = <strong class="jxr_keyword">new</strong> ArrayList&lt;Mutation&gt;(authLabels.size());
+<a class="jxr_linenumber" name="297" href="#297">297</a>     <strong class="jxr_keyword">int</strong> i = 0;
+<a class="jxr_linenumber" name="298" href="#298">298</a>     <strong class="jxr_keyword">for</strong> (byte[] authLabel : authLabels) {
+<a class="jxr_linenumber" name="299" href="#299">299</a>       String authLabelStr = Bytes.toString(authLabel);
+<a class="jxr_linenumber" name="300" href="#300">300</a>       <strong class="jxr_keyword">if</strong> (currentAuths.contains(authLabelStr)) {
+<a class="jxr_linenumber" name="301" href="#301">301</a>         <strong class="jxr_keyword">int</strong> labelOrdinal = <strong class="jxr_keyword">this</strong>.labelsCache.getLabelOrdinal(authLabelStr);
+<a class="jxr_linenumber" name="302" href="#302">302</a>         assert labelOrdinal &gt; 0;
+<a class="jxr_linenumber" name="303" href="#303">303</a>         <a href="../../../../../../org/apache/hadoop/hbase/client/Delete.html">Delete</a> d = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Delete.html">Delete</a>(Bytes.toBytes(labelOrdinal));
+<a class="jxr_linenumber" name="304" href="#304">304</a>         d.deleteColumns(LABELS_TABLE_FAMILY, user);
+<a class="jxr_linenumber" name="305" href="#305">305</a>         deletes.add(d);
+<a class="jxr_linenumber" name="306" href="#306">306</a>       } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="307" href="#307">307</a>         <em class="jxr_comment">// This label is not set for the user.</em>
+<a class="jxr_linenumber" name="308" href="#308">308</a>         finalOpStatus[i] = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>(OperationStatusCode.FAILURE,
+<a class="jxr_linenumber" name="309" href="#309">309</a>             <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/InvalidLabelException.html">InvalidLabelException</a>(<span class="jxr_string">"Label '"</span> + authLabelStr + <span class="jxr_string">"' is not set for the user "</span>
+<a class="jxr_linenumber" name="310" href="#310">310</a>                 + Bytes.toString(user)));
+<a class="jxr_linenumber" name="311" href="#311">311</a>       }
+<a class="jxr_linenumber" name="312" href="#312">312</a>       i++;
+<a class="jxr_linenumber" name="313" href="#313">313</a>     }
+<a class="jxr_linenumber" name="314" href="#314">314</a>     <strong class="jxr_keyword">if</strong> (mutateLabelsRegion(deletes, finalOpStatus)) {
+<a class="jxr_linenumber" name="315" href="#315">315</a>       updateZk(false);
+<a class="jxr_linenumber" name="316" href="#316">316</a>     }
+<a class="jxr_linenumber" name="317" href="#317">317</a>     <strong class="jxr_keyword">return</strong> finalOpStatus;
+<a class="jxr_linenumber" name="318" href="#318">318</a>   }
+<a class="jxr_linenumber" name="319" href="#319">319</a> 
+<a class="jxr_linenumber" name="320" href="#320">320</a>   <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="321" href="#321">321</a> <em class="jxr_javadoccomment">   * Adds the mutations to labels region and set the results to the finalOpStatus. finalOpStatus</em>
+<a class="jxr_linenumber" name="322" href="#322">322</a> <em class="jxr_javadoccomment">   * might have some entries in it where the OpStatus is FAILURE. We will leave those and set in</em>
+<a class="jxr_linenumber" name="323" href="#323">323</a> <em class="jxr_javadoccomment">   * others in the order.</em>
+<a class="jxr_linenumber" name="324" href="#324">324</a> <em class="jxr_javadoccomment">   * @param mutations</em>
+<a class="jxr_linenumber" name="325" href="#325">325</a> <em class="jxr_javadoccomment">   * @param finalOpStatus</em>
+<a class="jxr_linenumber" name="326" href="#326">326</a> <em class="jxr_javadoccomment">   * @return whether we need a ZK update or not.</em>
+<a class="jxr_linenumber" name="327" href="#327">327</a> <em class="jxr_javadoccomment">   */</em>
+<a class="jxr_linenumber" name="328" href="#328">328</a>   <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> mutateLabelsRegion(List&lt;Mutation&gt; mutations, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] finalOpStatus)
+<a class="jxr_linenumber" name="329" href="#329">329</a>       <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="330" href="#330">330</a>     <a href="../../../../../../org/apache/hadoop/hbase/regionserver/OperationStatus.html">OperationStatus</a>[] opStatus = <strong class="jxr_keyword">this</strong>.labelsRegion.batchMutate(mutations
+<a class="jxr_linenumber" name="331" href="#331">331</a>         .toArray(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Mutation.html">Mutation</a>[mutations.size()]));
+<a class="jxr_linenumber" name="332" href="#332">332</a>     <strong class="jxr_keyword">int</strong> i = 0;
+<a class="jxr_linenumber" name="333" href="#333">333</a>     <strong class="jxr_keyword">boolean</strong> updateZk = false;
+<a class="jxr_linenumber" name="334" href="#334">334</a>     <strong class="jxr_keyword">for</strong> (OperationStatus status : opStatus) {
+<a class="jxr_linenumber" name="335" href="#335">335</a>       <em class="jxr_comment">// Update the zk when atleast one of the mutation was added successfully.</em>
+<a class="jxr_linenumber" name="336" href="#336">336</a>       updateZk = updateZk || (status.getOperationStatusCode() == OperationStatusCode.SUCCESS);
+<a class="jxr_linenumber" name="337" href="#337">337</a>       <strong class="jxr_keyword">for</strong> (; i &lt; finalOpStatus.length; i++) {
+<a class="jxr_linenumber" name="338" href="#338">338</a>         <strong class="jxr_keyword">if</strong> (finalOpStatus[i] == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="339" href="#339">339</a>           finalOpStatus[i] = status;
+<a class="jxr_linenumber" name="340" href="#340">340</a>           <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="341" href="#341">341</a>         }
+<a class="jxr_linenumber" name="342" href="#342">342</a>       }
+<a class="jxr_linenumber" name="343" href="#343">343</a>     }
+<a class="jxr_linenumber" name="344" href="#344">344</a>     <strong class="jxr_keyword">return</strong> updateZk;
+<a class="jxr_linenumber" name="345" href="#345">345</a>   }
+<a class="jxr_linenumber" name="346" href="#346">346</a> 
+<a class="jxr_linenumber" name="347" href="#347">347</a>   @Override
+<a class="jxr_linenumber" name="348" href="#348">348</a>   <strong class="jxr_keyword">public</strong> List&lt;String&gt; getAuths(byte[] user, <strong class="jxr_keyword">boolean</strong> systemCall) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="349" href="#349">349</a>     assert (labelsRegion != <strong class="jxr_keyword">null</strong> || systemCall);
+<a class="jxr_linenumber" name="350" href="#350">350</a>     <strong class="jxr_keyword">if</strong> (systemCall || labelsRegion == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="351" href="#351">351</a>       <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.labelsCache.getAuths(Bytes.toString(user));
+<a class="jxr_linenumber" name="352" href="#352">352</a>     }
+<a class="jxr_linenumber" name="353" href="#353">353</a>     <a href="../../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a> s = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/client/Scan.html">Scan</a>();
+<a class="jxr_linenumber" name="354" href="#354">354</a>     s.addColumn(LABELS_TABLE_FAMILY, user);
+<a class="jxr_linenumber" name="355" href="#355">355</a>     <a href="../../../../../../org/apache/hadoop/hbase/filter/Filter.html">Filter</a> filter = VisibilityUtils.createVisibilityLabelFilter(<strong class="jxr_keyword">this</strong>.labelsRegion,
+<a class="jxr_linenumber" name="356" href="#356">356</a>         <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/Authorizations.html">Authorizations</a>(SYSTEM_LABEL));
+<a class="jxr_linenumber" name="357" href="#357">357</a>     s.setFilter(filter);
+<a class="jxr_linenumber" name="358" href="#358">358</a>     List&lt;String&gt; auths = <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;();
+<a class="jxr_linenumber" name="359" href="#359">359</a>     <a href="../../../../../../org/apache/hadoop/hbase/regionserver/RegionScanner.html">RegionScanner</a> scanner = <strong class="jxr_keyword">this</strong>.labelsRegion.getScanner(s);
+<a class="jxr_linenumber" name="360" href="#360">360</a>     List&lt;Cell&gt; results = <strong class="jxr_keyword">new</strong> ArrayList&lt;Cell&gt;(1);
+<a class="jxr_linenumber" name="361" href="#361">361</a>     <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
+<a class="jxr_linenumber" name="362" href="#362">362</a>       scanner.next(results);
+<a class="jxr_linenumber" name="363" href="#363">363</a>       <strong class="jxr_keyword">if</strong> (results.isEmpty()) <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="364" href="#364">364</a>       <a href="../../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell = results.get(0);
+<a class="jxr_linenumber" name="365" href="#365">365</a>       <strong class="jxr_keyword">int</strong> ordinal = Bytes.toInt(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());
+<a class="jxr_linenumber" name="366" href="#366">366</a>       String label = <strong class="jxr_keyword">this</strong>.labelsCache.getLabel(ordinal);
+<a class="jxr_linenumber" name="367" href="#367">367</a>       <strong class="jxr_keyword">if</strong> (label != <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="368" href="#368">368</a>         auths.add(label);
+<a class="jxr_linenumber" name="369" href="#369">369</a>       }
+<a class="jxr_linenumber" name="370" href="#370">370</a>       results.clear();
+<a class="jxr_linenumber" name="371" href="#371">371</a>     }
+<a class="jxr_linenumber" name="372" href="#372">372</a>     <strong class="jxr_keyword">return</strong> auths;
+<a class="jxr_linenumber" name="373" href="#373">373</a>   }
+<a class="jxr_linenumber" name="374" href="#374">374</a> 
+<a class="jxr_linenumber" name="375" href="#375">375</a>   @Override
+<a class="jxr_linenumber" name="376" href="#376">376</a>   <strong class="jxr_keyword">public</strong> List&lt;Tag&gt; createVisibilityExpTags(String visExpression, <strong class="jxr_keyword">boolean</strong> withSerializationFormat,
+<a class="jxr_linenumber" name="377" href="#377">377</a>       <strong class="jxr_keyword">boolean</strong> checkAuths) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="378" href="#378">378</a>     <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/expression/ExpressionNode.html">ExpressionNode</a> node = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="379" href="#379">379</a>     <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="380" href="#380">380</a>       node = <strong class="jxr_keyword">this</strong>.expressionParser.parse(visExpression);
+<a class="jxr_linenumber" name="381" href="#381">381</a>     } <strong class="jxr_keyword">catch</strong> (ParseException e) {
+<a class="jxr_linenumber" name="382" href="#382">382</a>       <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(e);
+<a class="jxr_linenumber" name="383" href="#383">383</a>     }
+<a class="jxr_linenumber" name="384" href="#384">384</a>     node = <strong class="jxr_keyword">this</strong>.expressionExpander.expand(node);
+<a class="jxr_linenumber" name="385" href="#385">385</a>     List&lt;Tag&gt; tags = <strong class="jxr_keyword">new</strong> ArrayList&lt;Tag&gt;();
+<a class="jxr_linenumber" name="386" href="#386">386</a>     ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
+<a class="jxr_linenumber" name="387" href="#387">387</a>     DataOutputStream dos = <strong class="jxr_keyword">new</strong> DataOutputStream(baos);
+<a class="jxr_linenumber" name="388" href="#388">388</a>     List&lt;Integer&gt; labelOrdinals = <strong class="jxr_keyword">new</strong> ArrayList&lt;Integer&gt;();
+<a class="jxr_linenumber" name="389" href="#389">389</a>     <em class="jxr_comment">// We will be adding this tag before the visibility tags and the presence of this</em>
+<a class="jxr_linenumber" name="390" href="#390">390</a>     <em class="jxr_comment">// tag indicates we are supporting deletes with cell visibility</em>
+<a class="jxr_linenumber" name="391" href="#391">391</a>     <strong class="jxr_keyword">if</strong> (withSerializationFormat) {
+<a class="jxr_linenumber" name="392" href="#392">392</a>       tags.add(VisibilityUtils.SORTED_ORDINAL_SERIALIZATION_FORMAT_TAG);
+<a class="jxr_linenumber" name="393" href="#393">393</a>     }
+<a class="jxr_linenumber" name="394" href="#394">394</a>     Set&lt;Integer&gt; auths = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="395" href="#395">395</a>     <strong class="jxr_keyword">if</strong> (checkAuths) {
+<a class="jxr_linenumber" name="396" href="#396">396</a>       auths = <strong class="jxr_keyword">this</strong>.labelsCache.getAuthsAsOrdinals(VisibilityUtils.getActiveUser().getShortName());
+<a class="jxr_linenumber" name="397" href="#397">397</a>     }
+<a class="jxr_linenumber" name="398" href="#398">398</a>     <strong class="jxr_keyword">if</strong> (node.isSingleNode()) {
+<a class="jxr_linenumber" name="399" href="#399">399</a>       getLabelOrdinals(node, labelOrdinals, auths, checkAuths);
+<a class="jxr_linenumber" name="400" href="#400">400</a>       writeLabelOrdinalsToStream(labelOrdinals, dos);
+<a class="jxr_linenumber" name="401" href="#401">401</a>       tags.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a>(VISIBILITY_TAG_TYPE, baos.toByteArray()));
+<a class="jxr_linenumber" name="402" href="#402">402</a>       baos.reset();
+<a class="jxr_linenumber" name="403" href="#403">403</a>     } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="404" href="#404">404</a>       <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/expression/NonLeafExpressionNode.html">NonLeafExpressionNode</a> nlNode = (NonLeafExpressionNode) node;
+<a class="jxr_linenumber" name="405" href="#405">405</a>       <strong class="jxr_keyword">if</strong> (nlNode.getOperator() == Operator.OR) {
+<a class="jxr_linenumber" name="406" href="#406">406</a>         <strong class="jxr_keyword">for</strong> (ExpressionNode child : nlNode.getChildExps()) {
+<a class="jxr_linenumber" name="407" href="#407">407</a>           getLabelOrdinals(child, labelOrdinals, auths, checkAuths);
+<a class="jxr_linenumber" name="408" href="#408">408</a>           writeLabelOrdinalsToStream(labelOrdinals, dos);
+<a class="jxr_linenumber" name="409" href="#409">409</a>           tags.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a>(VISIBILITY_TAG_TYPE, baos.toByteArray()));
+<a class="jxr_linenumber" name="410" href="#410">410</a>           baos.reset();
+<a class="jxr_linenumber" name="411" href="#411">411</a>           labelOrdinals.clear();
+<a class="jxr_linenumber" name="412" href="#412">412</a>         }
+<a class="jxr_linenumber" name="413" href="#413">413</a>       } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="414" href="#414">414</a>         getLabelOrdinals(nlNode, labelOrdinals, auths, checkAuths);
+<a class="jxr_linenumber" name="415" href="#415">415</a>         writeLabelOrdinalsToStream(labelOrdinals, dos);
+<a class="jxr_linenumber" name="416" href="#416">416</a>         tags.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a>(VISIBILITY_TAG_TYPE, baos.toByteArray()));
+<a class="jxr_linenumber" name="417" href="#417">417</a>         baos.reset();
+<a class="jxr_linenumber" name="418" href="#418">418</a>       }
+<a class="jxr_linenumber" name="419" href="#419">419</a>     }
+<a class="jxr_linenumber" name="420" href="#420">420</a>     <strong class="jxr_keyword">return</strong> tags;
+<a class="jxr_linenumber" name="421" href="#421">421</a>   }
+<a class="jxr_linenumber" name="422" href="#422">422</a> 
+<a class="jxr_linenumber" name="423" href="#423">423</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> getLabelOrdinals(<a href="../../../../../../org/apache/hadoop/hbase/security/visibility/expression/ExpressionNode.html">ExpressionNode</a> node, List&lt;Integer&gt; labelOrdinals,
+<a class="jxr_linenumber" name="424" href="#424">424</a>       Set&lt;Integer&gt; auths, <strong class="jxr_keyword">boolean</strong> checkAuths) <strong class="jxr_keyword">throws</strong> IOException, InvalidLabelException {
+<a class="jxr_linenumber" name="425" href="#425">425</a>     <strong class="jxr_keyword">if</strong> (node.isSingleNode()) {
+<a class="jxr_linenumber" name="426" href="#426">426</a>       String identifier = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="427" href="#427">427</a>       <strong class="jxr_keyword">int</strong> labelOrdinal = 0;
+<a class="jxr_linenumber" name="428" href="#428">428</a>       <strong class="jxr_keyword">if</strong> (node instanceof LeafExpressionNode) {
+<a class="jxr_linenumber" name="429" href="#429">429</a>         identifier = ((LeafExpressionNode) node).getIdentifier();
+<a class="jxr_linenumber" name="430" href="#430">430</a>         <strong class="jxr_keyword">if</strong> (LOG.isTraceEnabled()) {
+<a class="jxr_linenumber" name="431" href="#431">431</a>           LOG.trace(<span class="jxr_string">"The identifier is "</span> + identifier);
+<a class="jxr_linenumber" name="432" href="#432">432</a>         }
+<a class="jxr_linenumber" name="433" href="#433">433</a>         labelOrdinal = <strong class="jxr_keyword">this</strong>.labelsCache.getLabelOrdinal(identifier);
+<a class="jxr_linenumber" name="434" href="#434">434</a>         checkAuths(auths, labelOrdinal, identifier, checkAuths);
+<a class="jxr_linenumber" name="435" href="#435">435</a>       } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="436" href="#436">436</a>         <em class="jxr_comment">// This is a NOT node.</em>
+<a class="jxr_linenumber" name="437" href="#437">437</a>         <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/expression/LeafExpressionNode.html">LeafExpressionNode</a> lNode = (LeafExpressionNode) ((NonLeafExpressionNode) node)
+<a class="jxr_linenumber" name="438" href="#438">438</a>             .getChildExps().get(0);
+<a class="jxr_linenumber" name="439" href="#439">439</a>         identifier = lNode.getIdentifier();
+<a class="jxr_linenumber" name="440" href="#440">440</a>         labelOrdinal = <strong class="jxr_keyword">this</strong>.labelsCache.getLabelOrdinal(identifier);
+<a class="jxr_linenumber" name="441" href="#441">441</a>         checkAuths(auths, labelOrdinal, identifier, checkAuths);
+<a class="jxr_linenumber" name="442" href="#442">442</a>         labelOrdinal = -1 * labelOrdinal; <em class="jxr_comment">// Store NOT node as -ve ordinal.</em>
+<a class="jxr_linenumber" name="443" href="#443">443</a>       }
+<a class="jxr_linenumber" name="444" href="#444">444</a>       <strong class="jxr_keyword">if</strong> (labelOrdinal == 0) {
+<a class="jxr_linenumber" name="445" href="#445">445</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/InvalidLabelException.html">InvalidLabelException</a>(<span class="jxr_string">"Invalid visibility label "</span> + identifier);
+<a class="jxr_linenumber" name="446" href="#446">446</a>       }
+<a class="jxr_linenumber" name="447" href="#447">447</a>       labelOrdinals.add(labelOrdinal);
+<a class="jxr_linenumber" name="448" href="#448">448</a>     } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="449" href="#449">449</a>       List&lt;ExpressionNode&gt; childExps = ((NonLeafExpressionNode) node).getChildExps();
+<a class="jxr_linenumber" name="450" href="#450">450</a>       <strong class="jxr_keyword">for</strong> (ExpressionNode child : childExps) {
+<a class="jxr_linenumber" name="451" href="#451">451</a>         getLabelOrdinals(child, labelOrdinals, auths, checkAuths);
+<a class="jxr_linenumber" name="452" href="#452">452</a>       }
+<a class="jxr_linenumber" name="453" href="#453">453</a>     }
+<a class="jxr_linenumber" name="454" href="#454">454</a>   }
+<a class="jxr_linenumber" name="455" href="#455">455</a> 
+<a class="jxr_linenumber" name="456" href="#456">456</a>   <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkAuths(Set&lt;Integer&gt; auths, <strong class="jxr_keyword">int</strong> labelOrdinal, String identifier,
+<a class="jxr_linenumber" name="457" href="#457">457</a>       <strong class="jxr_keyword">boolean</strong> checkAuths) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="458" href="#458">458</a>     <strong class="jxr_keyword">if</strong> (checkAuths) {
+<a class="jxr_linenumber" name="459" href="#459">459</a>       <strong class="jxr_keyword">if</strong> (auths == <strong class="jxr_keyword">null</strong> || (!auths.contains(labelOrdinal))) {
+<a class="jxr_linenumber" name="460" href="#460">460</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/AccessDeniedException.html">AccessDeniedException</a>(<span class="jxr_string">"Visibility label "</span> + identifier
+<a class="jxr_linenumber" name="461" href="#461">461</a>             + <span class="jxr_string">" not authorized for the user "</span> + VisibilityUtils.getActiveUser().getShortName());
+<a class="jxr_linenumber" name="462" href="#462">462</a>       }
+<a class="jxr_linenumber" name="463" href="#463">463</a>     }
+<a class="jxr_linenumber" name="464" href="#464">464</a>   }
+<a class="jxr_linenumber" name="465" href="#465">465</a> 
+<a class="jxr_linenumber" name="466" href="#466">466</a>   <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="467" href="#467">467</a> <em class="jxr_javadoccomment">   * This will sort the passed labels in ascending oder and then will write one after the other</em>
+<a class="jxr_linenumber" name="468" href="#468">468</a> <em class="jxr_javadoccomment">   * to the passed stream.</em>
+<a class="jxr_linenumber" name="469" href="#469">469</a> <em class="jxr_javadoccomment">   * @param labelOrdinals Unsorted label ordinals</em>
+<a class="jxr_linenumber" name="470" href="#470">470</a> <em class="jxr_javadoccomment">   * @param dos Stream where to write the labels.</em>
+<a class="jxr_linenumber" name="471" href="#471">471</a> <em class="jxr_javadoccomment">   * @throws IOException When IOE during writes to Stream.</em>
+<a class="jxr_linenumber" name="472" href="#472">472</a> <em class="jxr_javadoccomment">   */</em>
+<a class="jxr_linenumber" name="473" href="#473">473</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> writeLabelOrdinalsToStream(List&lt;Integer&gt; labelOrdinals, DataOutputStream dos)
+<a class="jxr_linenumber" name="474" href="#474">474</a>       <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="475" href="#475">475</a>     Collections.sort(labelOrdinals);
+<a class="jxr_linenumber" name="476" href="#476">476</a>     <strong class="jxr_keyword">for</strong> (Integer labelOrdinal : labelOrdinals) {
+<a class="jxr_linenumber" name="477" href="#477">477</a>       StreamUtils.writeRawVInt32(dos, labelOrdinal);
+<a class="jxr_linenumber" name="478" href="#478">478</a>     }
+<a class="jxr_linenumber" name="479" href="#479">479</a>   }
+<a class="jxr_linenumber" name="480" href="#480">480</a> 
+<a class="jxr_linenumber" name="481" href="#481">481</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> updateZk(<strong class="jxr_keyword">boolean</strong> labelAddition) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="482" href="#482">482</a>     <em class="jxr_comment">// We will add to zookeeper here.</em>
+<a class="jxr_linenumber" name="483" href="#483">483</a>     <em class="jxr_comment">// TODO we should add the delta only to zk. Else this will be a very heavy op and when there are</em>
+<a class="jxr_linenumber" name="484" href="#484">484</a>     <em class="jxr_comment">// so many labels and auth in the system, we will end up adding lots of data to zk. Most</em>
+<a class="jxr_linenumber" name="485" href="#485">485</a>     <em class="jxr_comment">// possibly we will exceed zk node data limit!</em>
+<a class="jxr_linenumber" name="486" href="#486">486</a>     Pair&lt;Map&lt;String, Integer&gt;, Map&lt;String, List&lt;Integer&gt;&gt;&gt; labelsAndUserAuths =
+<a class="jxr_linenumber" name="487" href="#487">487</a>         extractLabelsAndAuths(getExistingLabelsWithAuths());
+<a class="jxr_linenumber" name="488" href="#488">488</a>     Map&lt;String, Integer&gt; existingLabels = labelsAndUserAuths.getFirst();
+<a class="jxr_linenumber" name="489" href="#489">489</a>     Map&lt;String, List&lt;Integer&gt;&gt; userAuths = labelsAndUserAuths.getSecond();
+<a class="jxr_linenumber" name="490" href="#490">490</a>     <strong class="jxr_keyword">if</strong> (labelAddition) {
+<a class="jxr_linenumber" name="491" href="#491">491</a>       byte[] serialized = VisibilityUtils.getDataToWriteToZooKeeper(existingLabels);
+<a class="jxr_linenumber" name="492" href="#492">492</a>       <strong class="jxr_keyword">this</strong>.labelsCache.writeToZookeeper(serialized, <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="493" href="#493">493</a>     } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="494" href="#494">494</a>       byte[] serialized = VisibilityUtils.getUserAuthsDataToWriteToZooKeeper(userAuths);
+<a class="jxr_linenumber" name="495" href="#495">495</a>       <strong class="jxr_keyword">this</strong>.labelsCache.writeToZookeeper(serialized, false);
+<a class="jxr_linenumber" name="496" href="#496">496</a>     }
+<a class="jxr_linenumber" name="497" href="#497">497</a>   }
+<a class="jxr_linenumber" name="498" href="#498">498</a> 
+<a class="jxr_linenumber" name="499" href="#499">499</a>   @Override
+<a class="jxr_linenumber" name="500" href="#500">500</a>   <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityExpEvaluator.html">VisibilityExpEvaluator</a> getVisibilityExpEvaluator(<a href="../../../../../../org/apache/hadoop/hbase/security/visibility/Authorizations.html">Authorizations</a> authorizations)
+<a class="jxr_linenumber" name="501" href="#501">501</a>       <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="502" href="#502">502</a>     <em class="jxr_comment">// If a super user issues a get/scan, he should be able to scan the cells</em>
+<a class="jxr_linenumber" name="503" href="#503">503</a>     <em class="jxr_comment">// irrespective of the Visibility labels</em>
+<a class="jxr_linenumber" name="504" href="#504">504</a>     <strong class="jxr_keyword">if</strong> (isReadFromSuperUser()) {
+<a class="jxr_linenumber" name="505" href="#505">505</a>       <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityExpEvaluator.html">VisibilityExpEvaluator</a>() {
+<a class="jxr_linenumber" name="506" href="#506">506</a>         @Override
+<a class="jxr_linenumber" name="507" href="#507">507</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> evaluate(<a href="../../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="508" href="#508">508</a>           <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="509" href="#509">509</a>         }
+<a class="jxr_linenumber" name="510" href="#510">510</a>       };
+<a class="jxr_linenumber" name="511" href="#511">511</a>     }
+<a class="jxr_linenumber" name="512" href="#512">512</a>     List&lt;String&gt; authLabels = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="513" href="#513">513</a>     <strong class="jxr_keyword">for</strong> (ScanLabelGenerator scanLabelGenerator : scanLabelGenerators) {
+<a class="jxr_linenumber" name="514" href="#514">514</a>       <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="515" href="#515">515</a>         <em class="jxr_comment">// null authorizations to be handled inside SLG impl.</em>
+<a class="jxr_linenumber" name="516" href="#516">516</a>         authLabels = scanLabelGenerator.getLabels(VisibilityUtils.getActiveUser(), authorizations);
+<a class="jxr_linenumber" name="517" href="#517">517</a>         authLabels = (authLabels == <strong class="jxr_keyword">null</strong>) ? <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;() : authLabels;
+<a class="jxr_linenumber" name="518" href="#518">518</a>         authorizations = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/Authorizations.html">Authorizations</a>(authLabels);
+<a class="jxr_linenumber" name="519" href="#519">519</a>       } <strong class="jxr_keyword">catch</strong> (Throwable t) {
+<a class="jxr_linenumber" name="520" href="#520">520</a>         LOG.error(t);
+<a class="jxr_linenumber" name="521" href="#521">521</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(t);
+<a class="jxr_linenumber" name="522" href="#522">522</a>       }
+<a class="jxr_linenumber" name="523" href="#523">523</a>     }
+<a class="jxr_linenumber" name="524" href="#524">524</a>     <strong class="jxr_keyword">int</strong> labelsCount = <strong class="jxr_keyword">this</strong>.labelsCache.getLabelsCount();
+<a class="jxr_linenumber" name="525" href="#525">525</a>     <strong class="jxr_keyword">final</strong> BitSet bs = <strong class="jxr_keyword">new</strong> BitSet(labelsCount + 1); <em class="jxr_comment">// ordinal is index 1 based</em>
+<a class="jxr_linenumber" name="526" href="#526">526</a>     <strong class="jxr_keyword">if</strong> (authLabels != <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="527" href="#527">527</a>       <strong class="jxr_keyword">for</strong> (String authLabel : authLabels) {
+<a class="jxr_linenumber" name="528" href="#528">528</a>         <strong class="jxr_keyword">int</strong> labelOrdinal = <strong class="jxr_keyword">this</strong>.labelsCache.getLabelOrdinal(authLabel);
+<a class="jxr_linenumber" name="529" href="#529">529</a>         <strong class="jxr_keyword">if</strong> (labelOrdinal != 0) {
+<a class="jxr_linenumber" name="530" href="#530">530</a>           bs.set(labelOrdinal);
+<a class="jxr_linenumber" name="531" href="#531">531</a>         }
+<a class="jxr_linenumber" name="532" href="#532">532</a>       }
+<a class="jxr_linenumber" name="533" href="#533">533</a>     }
+<a class="jxr_linenumber" name="534" href="#534">534</a> 
+<a class="jxr_linenumber" name="535" href="#535">535</a>     <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityExpEvaluator.html">VisibilityExpEvaluator</a>() {
+<a class="jxr_linenumber" name="536" href="#536">536</a>       @Override
+<a class="jxr_linenumber" name="537" href="#537">537</a>       <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> evaluate(<a href="../../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="538" href="#538">538</a>         <strong class="jxr_keyword">boolean</strong> visibilityTagPresent = false;
+<a class="jxr_linenumber" name="539" href="#539">539</a>         <em class="jxr_comment">// Save an object allocation where we can</em>
+<a class="jxr_linenumber" name="540" href="#540">540</a>         <strong class="jxr_keyword">if</strong> (cell.getTagsLength() &gt; 0) {
+<a class="jxr_linenumber" name="541" href="#541">541</a>           Iterator&lt;Tag&gt; tagsItr = CellUtil.tagsIterator(cell.getTagsArray(), cell.getTagsOffset(),
+<a class="jxr_linenumber" name="542" href="#542">542</a>               cell.getTagsLength());
+<a class="jxr_linenumber" name="543" href="#543">543</a>           <strong class="jxr_keyword">while</strong> (tagsItr.hasNext()) {
+<a class="jxr_linenumber" name="544" href="#544">544</a>             <strong class="jxr_keyword">boolean</strong> includeKV = <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="545" href="#545">545</a>             <a href="../../../../../../org/apache/hadoop/hbase/Tag.html">Tag</a> tag = tagsItr.next();
+<a class="jxr_linenumber" name="546" href="#546">546</a>             <strong class="jxr_keyword">if</strong> (tag.getType() == VISIBILITY_TAG_TYPE) {
+<a class="jxr_linenumber" name="547" href="#547">547</a>               visibilityTagPresent = <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="548" href="#548">548</a>               <strong class="jxr_keyword">int</strong> offset = tag.getTagOffset();
+<a class="jxr_linenumber" name="549" href="#549">549</a>               <strong class="jxr_keyword">int</strong> endOffset = offset + tag.getTagLength();
+<a class="jxr_linenumber" name="550" href="#550">550</a>               <strong class="jxr_keyword">while</strong> (offset &lt; endOffset) {
+<a class="jxr_linenumber" name="551" href="#551">551</a>                 Pair&lt;Integer, Integer&gt; result = <a href="../../../../../../org/apache/hadoop/hbase/io/util/StreamUtils.html">StreamUtils</a>
+<a class="jxr_linenumber" name="552" href="#552">552</a>                     .readRawVarint32(tag.getBuffer(), offset);
+<a class="jxr_linenumber" name="553" href="#553">553</a>                 <strong class="jxr_keyword">int</strong> currLabelOrdinal = result.getFirst();
+<a class="jxr_linenumber" name="554" href="#554">554</a>                 <strong class="jxr_keyword">if</strong> (currLabelOrdinal &lt; 0) {
+<a class="jxr_linenumber" name="555" href="#555">555</a>                   <em class="jxr_comment">// check for the absence of this label in the Scan Auth labels</em>
+<a class="jxr_linenumber" name="556" href="#556">556</a>                   <em class="jxr_comment">// ie. to check BitSet corresponding bit is 0</em>
+<a class="jxr_linenumber" name="557" href="#557">557</a>                   <strong class="jxr_keyword">int</strong> temp = -currLabelOrdinal;
+<a class="jxr_linenumber" name="558" href="#558">558</a>                   <strong class="jxr_keyword">if</strong> (bs.get(temp)) {
+<a class="jxr_linenumber" name="559" href="#559">559</a>                     includeKV = false;
+<a class="jxr_linenumber" name="560" href="#560">560</a>                     <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="561" href="#561">561</a>                   }
+<a class="jxr_linenumber" name="562" href="#562">562</a>                 } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="563" href="#563">563</a>                   <strong class="jxr_keyword">if</strong> (!bs.get(currLabelOrdinal)) {
+<a class="jxr_linenumber" name="564" href="#564">564</a>                     includeKV = false;
+<a class="jxr_linenumber" name="565" href="#565">565</a>                     <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="566" href="#566">566</a>                   }
+<a class="jxr_linenumber" name="567" href="#567">567</a>                 }
+<a class="jxr_linenumber" name="568" href="#568">568</a>                 offset += result.getSecond();
+<a class="jxr_linenumber" name="569" href="#569">569</a>               }
+<a class="jxr_linenumber" name="570" href="#570">570</a>               <strong class="jxr_keyword">if</strong> (includeKV) {
+<a class="jxr_linenumber" name="571" href="#571">571</a>                 <em class="jxr_comment">// We got one visibility expression getting evaluated to true. Good to include this</em>
+<a class="jxr_linenumber" name="572" href="#572">572</a>                 <em class="jxr_comment">// KV in the result then.</em>
+<a class="jxr_linenumber" name="573" href="#573">573</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="574" href="#574">574</a>               }
+<a class="jxr_linenumber" name="575" href="#575">575</a>             }
+<a class="jxr_linenumber" name="576" href="#576">576</a>           }
+<a class="jxr_linenumber" name="577" href="#577">577</a>         }
+<a class="jxr_linenumber" name="578" href="#578">578</a>         <strong class="jxr_keyword">return</strong> !(visibilityTagPresent);
+<a class="jxr_linenumber" name="579" href="#579">579</a>       }
+<a class="jxr_linenumber" name="580" href="#580">580</a>     };
+<a class="jxr_linenumber" name="581" href="#581">581</a>   }
+<a class="jxr_linenumber" name="582" href="#582">582</a> 
+<a class="jxr_linenumber" name="583" href="#583">583</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> isReadFromSuperUser() <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="584" href="#584">584</a>     byte[] user = Bytes.toBytes(VisibilityUtils.getActiveUser().getShortName());
+<a class="jxr_linenumber" name="585" href="#585">585</a>     <strong class="jxr_keyword">return</strong> havingSystemAuth(user);
+<a class="jxr_linenumber" name="586" href="#586">586</a>   }
+<a class="jxr_linenumber" name="587" href="#587">587</a> 
+<a class="jxr_linenumber" name="588" href="#588">588</a>   @Override
+<a class="jxr_linenumber" name="589" href="#589">589</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> havingSystemAuth(byte[] user) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="590" href="#590">590</a>     List&lt;String&gt; auths = <strong class="jxr_keyword">this</strong>.getAuths(user, <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="591" href="#591">591</a>     <strong class="jxr_keyword">if</strong> (LOG.isTraceEnabled()) {
+<a class="jxr_linenumber" name="592" href="#592">592</a>       LOG.trace(<span class="jxr_string">"The auths for user "</span> + Bytes.toString(user) + <span class="jxr_string">" are "</span> + auths);
+<a class="jxr_linenumber" name="593" href="#593">593</a>     }
+<a class="jxr_linenumber" name="594" href="#594">594</a>     <strong class="jxr_keyword">return</strong> auths.contains(SYSTEM_LABEL);
+<a class="jxr_linenumber" name="595" href="#595">595</a>   }
+<a class="jxr_linenumber" name="596" href="#596">596</a> 
+<a class="jxr_linenumber" name="597" href="#597">597</a>   @Override
+<a class="jxr_linenumber" name="598" href="#598">598</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> matchVisibility(List&lt;Tag&gt; putVisTags, Byte putTagsFormat, List&lt;Tag&gt; deleteVisTags,
+<a class="jxr_linenumber" name="599" href="#599">599</a>       Byte deleteTagsFormat) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="600" href="#600">600</a>     <strong class="jxr_keyword">if</strong> ((deleteTagsFormat != <strong class="jxr_keyword">null</strong> &amp;&amp; deleteTagsFormat == SORTED_ORDINAL_SERIALIZATION_FORMAT)
+<a class="jxr_linenumber" name="601" href="#601">601</a>         &amp;&amp; (putTagsFormat == <strong class="jxr_keyword">null</strong> || putTagsFormat == SORTED_ORDINAL_SERIALIZATION_FORMAT)) {
+<a class="jxr_linenumber" name="602" href="#602">602</a>       <strong class="jxr_keyword">if</strong> (putVisTags.size() == 0) {
+<a class="jxr_linenumber" name="603" href="#603">603</a>         <em class="jxr_comment">// Early out if there are no tags in the cell</em>
+<a class="jxr_linenumber" name="604" href="#604">604</a>         <strong class="jxr_keyword">return</strong> false;
+<a class="jxr_linenumber" name="605" href="#605">605</a>       }
+<a class="jxr_linenumber" name="606" href="#606">606</a>       <strong class="jxr_keyword">if</strong> (putTagsFormat == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="607" href="#607">607</a>         <strong class="jxr_keyword">return</strong> matchUnSortedVisibilityTags(putVisTags, deleteVisTags);
+<a class="jxr_linenumber" name="608" href="#608">608</a>       } <strong class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="609" href="#609">609</a>         <strong class="jxr_keyword">return</strong> matchOrdinalSortedVisibilityTags(putVisTags, deleteVisTags);
+<a class="jxr_linenumber" name="610" href="#610">610</a>       }
+<a class="jxr_linenumber" name="611" href="#611">611</a>     }
+<a class="jxr_linenumber" name="612" href="#612">612</a>     <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Unexpected tag format passed for comparison, deleteTagsFormat : "</span>
+<a class="jxr_linenumber" name="613" href="#613">613</a>         + deleteTagsFormat + <span class="jxr_string">", putTagsFormat : "</span> + putTagsFormat);
+<a class="jxr_linenumber" name="614" href="#614">614</a>   }
+<a class="jxr_linenumber" name="615" href="#615">615</a> 
+<a class="jxr_linenumber" name="616" href="#616">616</a>   <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="617" href="#617">617</a> <em class="jxr_javadoccomment">   * @param putVisTags Visibility tags in Put Mutation</em>
+<a class="jxr_linenumber" name="618" href="#618">618</a> <em class="jxr_javadoccomment">   * @param deleteVisTags Visibility tags in Delete Mutation</em>
+<a class="jxr_linenumber" name="619" href="#619">619</a> <em class="jxr_javadoccomment">   * @return true when all the visibility tags in Put matches with visibility tags in Delete.</em>
+<a class="jxr_linenumber" name="620" href="#620">620</a> <em class="jxr_javadoccomment">   * This is used when, at least one set of tags are not sorted based on the label ordinal.</em>
+<a class="jxr_linenumber" name="621" href="#621">621</a> <em class="jxr_javadoccomment">   */</em>
+<a class="jxr_linenumber" name="622" href="#622">622</a>   <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> matchUnSortedVisibilityTags(List&lt;Tag&gt; putVisTags,
+<a class="jxr_linenumber" name="623" href="#623">623</a>       List&lt;Tag&gt; deleteVisTags) <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="624" href="#624">624</a>     <strong class="jxr_keyword">return</strong> compareTagsOrdinals(sortTagsBasedOnOrdinal(putVisTags),
+<a class="jxr_linenumber" name="625" href="#625">625</a>         sortTagsBasedOnOrdinal(deleteVisTags));
+<a class="jxr_linenumber" name="626" href="#626">626</a>   }
+<a class="jxr_linenumber" name="627" href="#627">627</a> 
+<a class="jxr_linenumber" name="628" href="#628">628</a>   <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="629" href="#629">629</a> <em class="jxr_javadoccomment">   * @param putVisTags Visibility tags in Put Mutation</em>
+<a class="jxr_linenumber" name="630" href="#630">630</a> <em class="jxr_javadoccomment">   * @param deleteVisTags Visibility tags in Delete Mutation</em>
+<a class="jxr_linenumber" name="631" href="#631">631</a> <em class="jxr_javadoccomment">   * @return true when all the visibility tags in Put matches with visibility tags in Delete.</em>
+<a class="jxr_linenumber" name="632" href="#632">632</a> <em class="jxr_javadoccomment">   * This is used when both the set of tags are sorted based on the label ordinal.</em>
+<a class="jxr_linenumber" name="633" href="#633">633</a> <em class="jxr_javadoccomment">   */</em>
+<a class="jxr_linenumber" name="634" href="#634">634</a>   <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> matchOrdinalSortedVisibilityTags(List&lt;Tag&gt; putVisTags,
+<a class="jxr_linenumber" name="635" href="#635">635</a>       List&lt;Tag&gt; deleteVisTags) {
+<a class="jxr_linenumber" name="636" href="#636">636</a>     <strong class="jxr_keyword">boolean</strong> matchFound = false;
+<a class="jxr_linenumber" name="637" href="#637">637</a>     <em class="jxr_comment">// If the size does not match. Definitely we are not comparing the equal tags.</em>
+<a class="jxr_linenumber" name="638" href="#638">638</a>     <strong class="jxr_keyword">if</strong> ((deleteVisTags.size()) == putVisTags.size()) {
+<a class="jxr_linenumber" name="639" href="#639">639</a>       <strong class="jxr_keyword">for</strong> (Tag tag : deleteVisTags) {
+<a class="jxr_linenumber" name="640" href="#640">640</a>         matchFound = false;
+<a class="jxr_linenumber" name="641" href="#641">641</a>         <strong class="jxr_keyword">for</strong> (Tag givenTag : putVisTags) {
+<a class="jxr_linenumber" name="642" href="#642">642</a>           <strong class="jxr_keyword">if</strong> (Bytes.equals(tag.getBuffer(), tag.getTagOffset(), tag.getTagLength(),
+<a class="jxr_linenumber" name="643" href="#643">643</a>               givenTag.getBuffer(), givenTag.getTagOffset(), givenTag.getTagLength())) {
+<a class="jxr_linenumber" name="644" href="#644">644</a>             matchFound = <strong class="jxr_keyword">true</strong>;

[... 59 lines stripped ...]


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