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+<!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><a name="line.18"></a>
+<span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.tool.coprocessor;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static 
org.junit.Assert.assertEquals;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static 
org.junit.Assert.assertTrue;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a 
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.List;<a 
name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.Coprocessor;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import 
org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import 
org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import 
org.apache.hadoop.hbase.HRegionInfo;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.apache.hadoop.hbase.HTableDescriptor;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import 
org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.tool.coprocessor.CoprocessorViolation.Severity;<a 
name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.junit.ClassRule;<a 
name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.junit.Test;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
org.junit.experimental.categories.Category;<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a 
name="line.40"></a>
+<span class="sourceLineNo">041</span><a name="line.41"></a>
+<span class="sourceLineNo">042</span>@Category({ SmallTests.class })<a 
name="line.42"></a>
+<span class="sourceLineNo">043</span>@SuppressWarnings("deprecation")<a 
name="line.43"></a>
+<span class="sourceLineNo">044</span>public class CoprocessorValidatorTest {<a 
name="line.44"></a>
+<span class="sourceLineNo">045</span>  @ClassRule<a name="line.45"></a>
+<span class="sourceLineNo">046</span>  public static final HBaseClassTestRule 
CLASS_RULE =<a name="line.46"></a>
+<span class="sourceLineNo">047</span>      
HBaseClassTestRule.forClass(CoprocessorValidatorTest.class);<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
+<span class="sourceLineNo">049</span>  private CoprocessorValidator 
validator;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>  public CoprocessorValidatorTest() {<a 
name="line.51"></a>
+<span class="sourceLineNo">052</span>    validator = new 
CoprocessorValidator();<a name="line.52"></a>
+<span class="sourceLineNo">053</span>  }<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>  private static ClassLoader 
getClassLoader() {<a name="line.55"></a>
+<span class="sourceLineNo">056</span>    return 
CoprocessorValidatorTest.class.getClassLoader();<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  }<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>  private static String 
getFullClassName(String className) {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    return 
CoprocessorValidatorTest.class.getName() + "$" + className;<a 
name="line.60"></a>
+<span class="sourceLineNo">061</span>  }<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  @SuppressWarnings({"rawtypes", 
"unused"})<a name="line.63"></a>
+<span class="sourceLineNo">064</span>  private static class TestObserver 
implements Coprocessor {<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    @Override<a name="line.65"></a>
+<span class="sourceLineNo">066</span>    public void 
start(CoprocessorEnvironment env) throws IOException {<a name="line.66"></a>
+<span class="sourceLineNo">067</span>    }<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span>    @Override<a name="line.69"></a>
+<span class="sourceLineNo">070</span>    public void 
stop(CoprocessorEnvironment env) throws IOException {<a name="line.70"></a>
+<span class="sourceLineNo">071</span>    }<a name="line.71"></a>
+<span class="sourceLineNo">072</span>  }<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span>  @Test<a name="line.74"></a>
+<span class="sourceLineNo">075</span>  public void testFilterObservers() 
throws Exception {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>    String filterObservers = 
getFullClassName("TestObserver");<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(<a name="line.77"></a>
+<span class="sourceLineNo">078</span>        filterObservers, 
getClass().getName());<a name="line.78"></a>
+<span class="sourceLineNo">079</span>    List&lt;String&gt; filteredClassNames 
= validator.filterObservers(getClassLoader(), classNames);<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>    assertEquals(1, 
filteredClassNames.size());<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    assertEquals(filterObservers, 
filteredClassNames.get(0));<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  }<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>  private 
List&lt;CoprocessorViolation&gt; validate(String className) {<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span>    ClassLoader classLoader = 
getClass().getClassLoader();<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    return validate(classLoader, 
className);<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  }<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  private 
List&lt;CoprocessorViolation&gt; validate(ClassLoader classLoader, String 
className) {<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(getClass().getName() + "$" + className);<a 
name="line.91"></a>
+<span class="sourceLineNo">092</span>    return 
validator.validate(classLoader, classNames);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  }<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>  /*<a name="line.95"></a>
+<span class="sourceLineNo">096</span>   * In this test case, we are try to 
load a not-existent class.<a name="line.96"></a>
+<span class="sourceLineNo">097</span>   */<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  @Test<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public void testNoSuchClass() throws 
IOException {<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("NoSuchClass");<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    assertEquals(1, violations.size());<a 
name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.103"></a>
+<span class="sourceLineNo">104</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.104"></a>
+<span class="sourceLineNo">105</span>    
assertTrue(violation.getMessage().contains(<a name="line.105"></a>
+<span class="sourceLineNo">106</span>        
"java.lang.ClassNotFoundException: " +<a name="line.106"></a>
+<span class="sourceLineNo">107</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$NoSuchClass"));<a
 name="line.107"></a>
+<span class="sourceLineNo">108</span>  }<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>  /*<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * In this test case, we are validating 
MissingClass coprocessor, which<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   * references a missing class. With a 
special classloader, we prevent that<a name="line.112"></a>
+<span class="sourceLineNo">113</span>   * class to be loaded at runtime. It 
simulates similar cases where a class<a name="line.113"></a>
+<span class="sourceLineNo">114</span>   * is no more on our classpath.<a 
name="line.114"></a>
+<span class="sourceLineNo">115</span>   * E.g. 
org.apache.hadoop.hbase.regionserver.wal.WALEdit was moved to<a 
name="line.115"></a>
+<span class="sourceLineNo">116</span>   * org.apache.hadoop.hbase.wal, so 
class loading will fail on 2.0.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   */<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  private static class MissingClass {<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>  }<a name="line.119"></a>
+<span class="sourceLineNo">120</span><a name="line.120"></a>
+<span class="sourceLineNo">121</span>  @SuppressWarnings("unused")<a 
name="line.121"></a>
+<span class="sourceLineNo">122</span>  private static class 
MissingClassObserver {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    public void method(MissingClass 
missingClass) {<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
+<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span>  private static class 
MissingClassClassLoader extends ClassLoader {<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    public MissingClassClassLoader() {<a 
name="line.128"></a>
+<span class="sourceLineNo">129</span>      super(getClassLoader());<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>    @Override<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    public Class&lt;?&gt; 
loadClass(String name) throws ClassNotFoundException {<a name="line.133"></a>
+<span class="sourceLineNo">134</span>      if 
(name.equals(getFullClassName("MissingClass"))) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span>        throw new 
ClassNotFoundException(name);<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      }<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>      return super.findClass(name);<a 
name="line.138"></a>
+<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span>  @Test<a name="line.142"></a>
+<span class="sourceLineNo">143</span>  public void testMissingClass() throws 
IOException {<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    MissingClassClassLoader 
missingClassClassLoader = new MissingClassClassLoader();<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    List&lt;CoprocessorViolation&gt; 
violations = validate(missingClassClassLoader,<a name="line.145"></a>
+<span class="sourceLineNo">146</span>        "MissingClassObserver");<a 
name="line.146"></a>
+<span class="sourceLineNo">147</span>    assertEquals(1, violations.size());<a 
name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    
assertTrue(violation.getMessage().contains(<a name="line.151"></a>
+<span class="sourceLineNo">152</span>        
"java.lang.ClassNotFoundException: " +<a name="line.152"></a>
+<span class="sourceLineNo">153</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$MissingClass"));<a
 name="line.153"></a>
+<span class="sourceLineNo">154</span>  }<a name="line.154"></a>
+<span class="sourceLineNo">155</span><a name="line.155"></a>
+<span class="sourceLineNo">156</span>  /*<a name="line.156"></a>
+<span class="sourceLineNo">157</span>   * ObsoleteMethod coprocessor 
implements preCreateTable method which has<a name="line.157"></a>
+<span class="sourceLineNo">158</span>   * HRegionInfo parameters. In our 
current implementation, we pass only<a name="line.158"></a>
+<span class="sourceLineNo">159</span>   * RegionInfo parameters, so this 
method won't be called by HBase at all.<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   */<a name="line.160"></a>
+<span class="sourceLineNo">161</span>  @SuppressWarnings("unused")<a 
name="line.161"></a>
+<span class="sourceLineNo">162</span>  private static class 
ObsoleteMethodObserver /* implements MasterObserver */ {<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    public void 
preCreateTable(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a 
name="line.163"></a>
+<span class="sourceLineNo">164</span>        HTableDescriptor desc, 
HRegionInfo[] regions) throws IOException {<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  @Test<a name="line.168"></a>
+<span class="sourceLineNo">169</span>  public void testObsoleteMethod() throws 
IOException {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("ObsoleteMethodObserver");<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    assertEquals(1, violations.size());<a 
name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    assertEquals(Severity.WARNING, 
violation.getSeverity());<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    
assertTrue(violation.getMessage().contains("was removed from new coprocessor 
API"));<a name="line.175"></a>
+<span class="sourceLineNo">176</span>  }<a name="line.176"></a>
+<span class="sourceLineNo">177</span>}<a name="line.177"></a>
+
+
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+</pre>
+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/78d8c5d7/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.MissingClassObserver.html
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diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.MissingClassObserver.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.MissingClassObserver.html
new file mode 100644
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--- /dev/null
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.MissingClassObserver.html
@@ -0,0 +1,249 @@
+<!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><a name="line.18"></a>
+<span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.tool.coprocessor;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static 
org.junit.Assert.assertEquals;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static 
org.junit.Assert.assertTrue;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a 
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.List;<a 
name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.Coprocessor;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import 
org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import 
org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import 
org.apache.hadoop.hbase.HRegionInfo;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.apache.hadoop.hbase.HTableDescriptor;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import 
org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.tool.coprocessor.CoprocessorViolation.Severity;<a 
name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.junit.ClassRule;<a 
name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.junit.Test;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
org.junit.experimental.categories.Category;<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a 
name="line.40"></a>
+<span class="sourceLineNo">041</span><a name="line.41"></a>
+<span class="sourceLineNo">042</span>@Category({ SmallTests.class })<a 
name="line.42"></a>
+<span class="sourceLineNo">043</span>@SuppressWarnings("deprecation")<a 
name="line.43"></a>
+<span class="sourceLineNo">044</span>public class CoprocessorValidatorTest {<a 
name="line.44"></a>
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CLASS_RULE =<a name="line.46"></a>
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HBaseClassTestRule.forClass(CoprocessorValidatorTest.class);<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
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validator;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>  public CoprocessorValidatorTest() {<a 
name="line.51"></a>
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CoprocessorValidator();<a name="line.52"></a>
+<span class="sourceLineNo">053</span>  }<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>  private static ClassLoader 
getClassLoader() {<a name="line.55"></a>
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CoprocessorValidatorTest.class.getClassLoader();<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  }<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>  private static String 
getFullClassName(String className) {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    return 
CoprocessorValidatorTest.class.getName() + "$" + className;<a 
name="line.60"></a>
+<span class="sourceLineNo">061</span>  }<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  @SuppressWarnings({"rawtypes", 
"unused"})<a name="line.63"></a>
+<span class="sourceLineNo">064</span>  private static class TestObserver 
implements Coprocessor {<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    @Override<a name="line.65"></a>
+<span class="sourceLineNo">066</span>    public void 
start(CoprocessorEnvironment env) throws IOException {<a name="line.66"></a>
+<span class="sourceLineNo">067</span>    }<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span>    @Override<a name="line.69"></a>
+<span class="sourceLineNo">070</span>    public void 
stop(CoprocessorEnvironment env) throws IOException {<a name="line.70"></a>
+<span class="sourceLineNo">071</span>    }<a name="line.71"></a>
+<span class="sourceLineNo">072</span>  }<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span>  @Test<a name="line.74"></a>
+<span class="sourceLineNo">075</span>  public void testFilterObservers() 
throws Exception {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>    String filterObservers = 
getFullClassName("TestObserver");<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(<a name="line.77"></a>
+<span class="sourceLineNo">078</span>        filterObservers, 
getClass().getName());<a name="line.78"></a>
+<span class="sourceLineNo">079</span>    List&lt;String&gt; filteredClassNames 
= validator.filterObservers(getClassLoader(), classNames);<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>    assertEquals(1, 
filteredClassNames.size());<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    assertEquals(filterObservers, 
filteredClassNames.get(0));<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  }<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>  private 
List&lt;CoprocessorViolation&gt; validate(String className) {<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span>    ClassLoader classLoader = 
getClass().getClassLoader();<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    return validate(classLoader, 
className);<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  }<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  private 
List&lt;CoprocessorViolation&gt; validate(ClassLoader classLoader, String 
className) {<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(getClass().getName() + "$" + className);<a 
name="line.91"></a>
+<span class="sourceLineNo">092</span>    return 
validator.validate(classLoader, classNames);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  }<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>  /*<a name="line.95"></a>
+<span class="sourceLineNo">096</span>   * In this test case, we are try to 
load a not-existent class.<a name="line.96"></a>
+<span class="sourceLineNo">097</span>   */<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  @Test<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public void testNoSuchClass() throws 
IOException {<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("NoSuchClass");<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    assertEquals(1, violations.size());<a 
name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.103"></a>
+<span class="sourceLineNo">104</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.104"></a>
+<span class="sourceLineNo">105</span>    
assertTrue(violation.getMessage().contains(<a name="line.105"></a>
+<span class="sourceLineNo">106</span>        
"java.lang.ClassNotFoundException: " +<a name="line.106"></a>
+<span class="sourceLineNo">107</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$NoSuchClass"));<a
 name="line.107"></a>
+<span class="sourceLineNo">108</span>  }<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>  /*<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * In this test case, we are validating 
MissingClass coprocessor, which<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   * references a missing class. With a 
special classloader, we prevent that<a name="line.112"></a>
+<span class="sourceLineNo">113</span>   * class to be loaded at runtime. It 
simulates similar cases where a class<a name="line.113"></a>
+<span class="sourceLineNo">114</span>   * is no more on our classpath.<a 
name="line.114"></a>
+<span class="sourceLineNo">115</span>   * E.g. 
org.apache.hadoop.hbase.regionserver.wal.WALEdit was moved to<a 
name="line.115"></a>
+<span class="sourceLineNo">116</span>   * org.apache.hadoop.hbase.wal, so 
class loading will fail on 2.0.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   */<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  private static class MissingClass {<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>  }<a name="line.119"></a>
+<span class="sourceLineNo">120</span><a name="line.120"></a>
+<span class="sourceLineNo">121</span>  @SuppressWarnings("unused")<a 
name="line.121"></a>
+<span class="sourceLineNo">122</span>  private static class 
MissingClassObserver {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    public void method(MissingClass 
missingClass) {<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
+<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span>  private static class 
MissingClassClassLoader extends ClassLoader {<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    public MissingClassClassLoader() {<a 
name="line.128"></a>
+<span class="sourceLineNo">129</span>      super(getClassLoader());<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>    @Override<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    public Class&lt;?&gt; 
loadClass(String name) throws ClassNotFoundException {<a name="line.133"></a>
+<span class="sourceLineNo">134</span>      if 
(name.equals(getFullClassName("MissingClass"))) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span>        throw new 
ClassNotFoundException(name);<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      }<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>      return super.findClass(name);<a 
name="line.138"></a>
+<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span>  @Test<a name="line.142"></a>
+<span class="sourceLineNo">143</span>  public void testMissingClass() throws 
IOException {<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    MissingClassClassLoader 
missingClassClassLoader = new MissingClassClassLoader();<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    List&lt;CoprocessorViolation&gt; 
violations = validate(missingClassClassLoader,<a name="line.145"></a>
+<span class="sourceLineNo">146</span>        "MissingClassObserver");<a 
name="line.146"></a>
+<span class="sourceLineNo">147</span>    assertEquals(1, violations.size());<a 
name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    
assertTrue(violation.getMessage().contains(<a name="line.151"></a>
+<span class="sourceLineNo">152</span>        
"java.lang.ClassNotFoundException: " +<a name="line.152"></a>
+<span class="sourceLineNo">153</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$MissingClass"));<a
 name="line.153"></a>
+<span class="sourceLineNo">154</span>  }<a name="line.154"></a>
+<span class="sourceLineNo">155</span><a name="line.155"></a>
+<span class="sourceLineNo">156</span>  /*<a name="line.156"></a>
+<span class="sourceLineNo">157</span>   * ObsoleteMethod coprocessor 
implements preCreateTable method which has<a name="line.157"></a>
+<span class="sourceLineNo">158</span>   * HRegionInfo parameters. In our 
current implementation, we pass only<a name="line.158"></a>
+<span class="sourceLineNo">159</span>   * RegionInfo parameters, so this 
method won't be called by HBase at all.<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   */<a name="line.160"></a>
+<span class="sourceLineNo">161</span>  @SuppressWarnings("unused")<a 
name="line.161"></a>
+<span class="sourceLineNo">162</span>  private static class 
ObsoleteMethodObserver /* implements MasterObserver */ {<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    public void 
preCreateTable(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a 
name="line.163"></a>
+<span class="sourceLineNo">164</span>        HTableDescriptor desc, 
HRegionInfo[] regions) throws IOException {<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  @Test<a name="line.168"></a>
+<span class="sourceLineNo">169</span>  public void testObsoleteMethod() throws 
IOException {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("ObsoleteMethodObserver");<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    assertEquals(1, violations.size());<a 
name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    assertEquals(Severity.WARNING, 
violation.getSeverity());<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    
assertTrue(violation.getMessage().contains("was removed from new coprocessor 
API"));<a name="line.175"></a>
+<span class="sourceLineNo">176</span>  }<a name="line.176"></a>
+<span class="sourceLineNo">177</span>}<a name="line.177"></a>
+
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+</pre>
+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/78d8c5d7/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.ObsoleteMethodObserver.html
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diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.ObsoleteMethodObserver.html
 
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+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.ObsoleteMethodObserver.html
@@ -0,0 +1,249 @@
+<!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><a name="line.18"></a>
+<span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.tool.coprocessor;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static 
org.junit.Assert.assertEquals;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static 
org.junit.Assert.assertTrue;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a 
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.List;<a 
name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.Coprocessor;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import 
org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import 
org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import 
org.apache.hadoop.hbase.HRegionInfo;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.apache.hadoop.hbase.HTableDescriptor;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import 
org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.tool.coprocessor.CoprocessorViolation.Severity;<a 
name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.junit.ClassRule;<a 
name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.junit.Test;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
org.junit.experimental.categories.Category;<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a 
name="line.40"></a>
+<span class="sourceLineNo">041</span><a name="line.41"></a>
+<span class="sourceLineNo">042</span>@Category({ SmallTests.class })<a 
name="line.42"></a>
+<span class="sourceLineNo">043</span>@SuppressWarnings("deprecation")<a 
name="line.43"></a>
+<span class="sourceLineNo">044</span>public class CoprocessorValidatorTest {<a 
name="line.44"></a>
+<span class="sourceLineNo">045</span>  @ClassRule<a name="line.45"></a>
+<span class="sourceLineNo">046</span>  public static final HBaseClassTestRule 
CLASS_RULE =<a name="line.46"></a>
+<span class="sourceLineNo">047</span>      
HBaseClassTestRule.forClass(CoprocessorValidatorTest.class);<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
+<span class="sourceLineNo">049</span>  private CoprocessorValidator 
validator;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>  public CoprocessorValidatorTest() {<a 
name="line.51"></a>
+<span class="sourceLineNo">052</span>    validator = new 
CoprocessorValidator();<a name="line.52"></a>
+<span class="sourceLineNo">053</span>  }<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>  private static ClassLoader 
getClassLoader() {<a name="line.55"></a>
+<span class="sourceLineNo">056</span>    return 
CoprocessorValidatorTest.class.getClassLoader();<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  }<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>  private static String 
getFullClassName(String className) {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    return 
CoprocessorValidatorTest.class.getName() + "$" + className;<a 
name="line.60"></a>
+<span class="sourceLineNo">061</span>  }<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  @SuppressWarnings({"rawtypes", 
"unused"})<a name="line.63"></a>
+<span class="sourceLineNo">064</span>  private static class TestObserver 
implements Coprocessor {<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    @Override<a name="line.65"></a>
+<span class="sourceLineNo">066</span>    public void 
start(CoprocessorEnvironment env) throws IOException {<a name="line.66"></a>
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+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span>    @Override<a name="line.69"></a>
+<span class="sourceLineNo">070</span>    public void 
stop(CoprocessorEnvironment env) throws IOException {<a name="line.70"></a>
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+<span class="sourceLineNo">074</span>  @Test<a name="line.74"></a>
+<span class="sourceLineNo">075</span>  public void testFilterObservers() 
throws Exception {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>    String filterObservers = 
getFullClassName("TestObserver");<a name="line.76"></a>
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Lists.newArrayList(<a name="line.77"></a>
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getClass().getName());<a name="line.78"></a>
+<span class="sourceLineNo">079</span>    List&lt;String&gt; filteredClassNames 
= validator.filterObservers(getClassLoader(), classNames);<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>    assertEquals(1, 
filteredClassNames.size());<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    assertEquals(filterObservers, 
filteredClassNames.get(0));<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  }<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>  private 
List&lt;CoprocessorViolation&gt; validate(String className) {<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span>    ClassLoader classLoader = 
getClass().getClassLoader();<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    return validate(classLoader, 
className);<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  }<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  private 
List&lt;CoprocessorViolation&gt; validate(ClassLoader classLoader, String 
className) {<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(getClass().getName() + "$" + className);<a 
name="line.91"></a>
+<span class="sourceLineNo">092</span>    return 
validator.validate(classLoader, classNames);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  }<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>  /*<a name="line.95"></a>
+<span class="sourceLineNo">096</span>   * In this test case, we are try to 
load a not-existent class.<a name="line.96"></a>
+<span class="sourceLineNo">097</span>   */<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  @Test<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public void testNoSuchClass() throws 
IOException {<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("NoSuchClass");<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    assertEquals(1, violations.size());<a 
name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.103"></a>
+<span class="sourceLineNo">104</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.104"></a>
+<span class="sourceLineNo">105</span>    
assertTrue(violation.getMessage().contains(<a name="line.105"></a>
+<span class="sourceLineNo">106</span>        
"java.lang.ClassNotFoundException: " +<a name="line.106"></a>
+<span class="sourceLineNo">107</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$NoSuchClass"));<a
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+<span class="sourceLineNo">108</span>  }<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>  /*<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * In this test case, we are validating 
MissingClass coprocessor, which<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   * references a missing class. With a 
special classloader, we prevent that<a name="line.112"></a>
+<span class="sourceLineNo">113</span>   * class to be loaded at runtime. It 
simulates similar cases where a class<a name="line.113"></a>
+<span class="sourceLineNo">114</span>   * is no more on our classpath.<a 
name="line.114"></a>
+<span class="sourceLineNo">115</span>   * E.g. 
org.apache.hadoop.hbase.regionserver.wal.WALEdit was moved to<a 
name="line.115"></a>
+<span class="sourceLineNo">116</span>   * org.apache.hadoop.hbase.wal, so 
class loading will fail on 2.0.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   */<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  private static class MissingClass {<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>  }<a name="line.119"></a>
+<span class="sourceLineNo">120</span><a name="line.120"></a>
+<span class="sourceLineNo">121</span>  @SuppressWarnings("unused")<a 
name="line.121"></a>
+<span class="sourceLineNo">122</span>  private static class 
MissingClassObserver {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    public void method(MissingClass 
missingClass) {<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
+<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span>  private static class 
MissingClassClassLoader extends ClassLoader {<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    public MissingClassClassLoader() {<a 
name="line.128"></a>
+<span class="sourceLineNo">129</span>      super(getClassLoader());<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>    @Override<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    public Class&lt;?&gt; 
loadClass(String name) throws ClassNotFoundException {<a name="line.133"></a>
+<span class="sourceLineNo">134</span>      if 
(name.equals(getFullClassName("MissingClass"))) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span>        throw new 
ClassNotFoundException(name);<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      }<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>      return super.findClass(name);<a 
name="line.138"></a>
+<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span>  @Test<a name="line.142"></a>
+<span class="sourceLineNo">143</span>  public void testMissingClass() throws 
IOException {<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    MissingClassClassLoader 
missingClassClassLoader = new MissingClassClassLoader();<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    List&lt;CoprocessorViolation&gt; 
violations = validate(missingClassClassLoader,<a name="line.145"></a>
+<span class="sourceLineNo">146</span>        "MissingClassObserver");<a 
name="line.146"></a>
+<span class="sourceLineNo">147</span>    assertEquals(1, violations.size());<a 
name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    
assertTrue(violation.getMessage().contains(<a name="line.151"></a>
+<span class="sourceLineNo">152</span>        
"java.lang.ClassNotFoundException: " +<a name="line.152"></a>
+<span class="sourceLineNo">153</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$MissingClass"));<a
 name="line.153"></a>
+<span class="sourceLineNo">154</span>  }<a name="line.154"></a>
+<span class="sourceLineNo">155</span><a name="line.155"></a>
+<span class="sourceLineNo">156</span>  /*<a name="line.156"></a>
+<span class="sourceLineNo">157</span>   * ObsoleteMethod coprocessor 
implements preCreateTable method which has<a name="line.157"></a>
+<span class="sourceLineNo">158</span>   * HRegionInfo parameters. In our 
current implementation, we pass only<a name="line.158"></a>
+<span class="sourceLineNo">159</span>   * RegionInfo parameters, so this 
method won't be called by HBase at all.<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   */<a name="line.160"></a>
+<span class="sourceLineNo">161</span>  @SuppressWarnings("unused")<a 
name="line.161"></a>
+<span class="sourceLineNo">162</span>  private static class 
ObsoleteMethodObserver /* implements MasterObserver */ {<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    public void 
preCreateTable(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a 
name="line.163"></a>
+<span class="sourceLineNo">164</span>        HTableDescriptor desc, 
HRegionInfo[] regions) throws IOException {<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  @Test<a name="line.168"></a>
+<span class="sourceLineNo">169</span>  public void testObsoleteMethod() throws 
IOException {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("ObsoleteMethodObserver");<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    assertEquals(1, violations.size());<a 
name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    assertEquals(Severity.WARNING, 
violation.getSeverity());<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    
assertTrue(violation.getMessage().contains("was removed from new coprocessor 
API"));<a name="line.175"></a>
+<span class="sourceLineNo">176</span>  }<a name="line.176"></a>
+<span class="sourceLineNo">177</span>}<a name="line.177"></a>
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+</pre>
+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/78d8c5d7/testdevapidocs/src-html/org/apache/hadoop/hbase/tool/coprocessor/CoprocessorValidatorTest.TestObserver.html
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@@ -0,0 +1,249 @@
+<!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><a name="line.18"></a>
+<span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.tool.coprocessor;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static 
org.junit.Assert.assertEquals;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static 
org.junit.Assert.assertTrue;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a 
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.List;<a 
name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.Coprocessor;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import 
org.apache.hadoop.hbase.CoprocessorEnvironment;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import 
org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import 
org.apache.hadoop.hbase.HRegionInfo;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.apache.hadoop.hbase.HTableDescriptor;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import 
org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.tool.coprocessor.CoprocessorViolation.Severity;<a 
name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.junit.ClassRule;<a 
name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.junit.Test;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
org.junit.experimental.categories.Category;<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a 
name="line.40"></a>
+<span class="sourceLineNo">041</span><a name="line.41"></a>
+<span class="sourceLineNo">042</span>@Category({ SmallTests.class })<a 
name="line.42"></a>
+<span class="sourceLineNo">043</span>@SuppressWarnings("deprecation")<a 
name="line.43"></a>
+<span class="sourceLineNo">044</span>public class CoprocessorValidatorTest {<a 
name="line.44"></a>
+<span class="sourceLineNo">045</span>  @ClassRule<a name="line.45"></a>
+<span class="sourceLineNo">046</span>  public static final HBaseClassTestRule 
CLASS_RULE =<a name="line.46"></a>
+<span class="sourceLineNo">047</span>      
HBaseClassTestRule.forClass(CoprocessorValidatorTest.class);<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
+<span class="sourceLineNo">049</span>  private CoprocessorValidator 
validator;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>  public CoprocessorValidatorTest() {<a 
name="line.51"></a>
+<span class="sourceLineNo">052</span>    validator = new 
CoprocessorValidator();<a name="line.52"></a>
+<span class="sourceLineNo">053</span>  }<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>  private static ClassLoader 
getClassLoader() {<a name="line.55"></a>
+<span class="sourceLineNo">056</span>    return 
CoprocessorValidatorTest.class.getClassLoader();<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  }<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>  private static String 
getFullClassName(String className) {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    return 
CoprocessorValidatorTest.class.getName() + "$" + className;<a 
name="line.60"></a>
+<span class="sourceLineNo">061</span>  }<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  @SuppressWarnings({"rawtypes", 
"unused"})<a name="line.63"></a>
+<span class="sourceLineNo">064</span>  private static class TestObserver 
implements Coprocessor {<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    @Override<a name="line.65"></a>
+<span class="sourceLineNo">066</span>    public void 
start(CoprocessorEnvironment env) throws IOException {<a name="line.66"></a>
+<span class="sourceLineNo">067</span>    }<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span>    @Override<a name="line.69"></a>
+<span class="sourceLineNo">070</span>    public void 
stop(CoprocessorEnvironment env) throws IOException {<a name="line.70"></a>
+<span class="sourceLineNo">071</span>    }<a name="line.71"></a>
+<span class="sourceLineNo">072</span>  }<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span>  @Test<a name="line.74"></a>
+<span class="sourceLineNo">075</span>  public void testFilterObservers() 
throws Exception {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>    String filterObservers = 
getFullClassName("TestObserver");<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(<a name="line.77"></a>
+<span class="sourceLineNo">078</span>        filterObservers, 
getClass().getName());<a name="line.78"></a>
+<span class="sourceLineNo">079</span>    List&lt;String&gt; filteredClassNames 
= validator.filterObservers(getClassLoader(), classNames);<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>    assertEquals(1, 
filteredClassNames.size());<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    assertEquals(filterObservers, 
filteredClassNames.get(0));<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  }<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>  private 
List&lt;CoprocessorViolation&gt; validate(String className) {<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span>    ClassLoader classLoader = 
getClass().getClassLoader();<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    return validate(classLoader, 
className);<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  }<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  private 
List&lt;CoprocessorViolation&gt; validate(ClassLoader classLoader, String 
className) {<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    List&lt;String&gt; classNames = 
Lists.newArrayList(getClass().getName() + "$" + className);<a 
name="line.91"></a>
+<span class="sourceLineNo">092</span>    return 
validator.validate(classLoader, classNames);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  }<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>  /*<a name="line.95"></a>
+<span class="sourceLineNo">096</span>   * In this test case, we are try to 
load a not-existent class.<a name="line.96"></a>
+<span class="sourceLineNo">097</span>   */<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  @Test<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public void testNoSuchClass() throws 
IOException {<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("NoSuchClass");<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    assertEquals(1, violations.size());<a 
name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.103"></a>
+<span class="sourceLineNo">104</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.104"></a>
+<span class="sourceLineNo">105</span>    
assertTrue(violation.getMessage().contains(<a name="line.105"></a>
+<span class="sourceLineNo">106</span>        
"java.lang.ClassNotFoundException: " +<a name="line.106"></a>
+<span class="sourceLineNo">107</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$NoSuchClass"));<a
 name="line.107"></a>
+<span class="sourceLineNo">108</span>  }<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>  /*<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * In this test case, we are validating 
MissingClass coprocessor, which<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   * references a missing class. With a 
special classloader, we prevent that<a name="line.112"></a>
+<span class="sourceLineNo">113</span>   * class to be loaded at runtime. It 
simulates similar cases where a class<a name="line.113"></a>
+<span class="sourceLineNo">114</span>   * is no more on our classpath.<a 
name="line.114"></a>
+<span class="sourceLineNo">115</span>   * E.g. 
org.apache.hadoop.hbase.regionserver.wal.WALEdit was moved to<a 
name="line.115"></a>
+<span class="sourceLineNo">116</span>   * org.apache.hadoop.hbase.wal, so 
class loading will fail on 2.0.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   */<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  private static class MissingClass {<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>  }<a name="line.119"></a>
+<span class="sourceLineNo">120</span><a name="line.120"></a>
+<span class="sourceLineNo">121</span>  @SuppressWarnings("unused")<a 
name="line.121"></a>
+<span class="sourceLineNo">122</span>  private static class 
MissingClassObserver {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    public void method(MissingClass 
missingClass) {<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
+<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span>  private static class 
MissingClassClassLoader extends ClassLoader {<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    public MissingClassClassLoader() {<a 
name="line.128"></a>
+<span class="sourceLineNo">129</span>      super(getClassLoader());<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>    @Override<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    public Class&lt;?&gt; 
loadClass(String name) throws ClassNotFoundException {<a name="line.133"></a>
+<span class="sourceLineNo">134</span>      if 
(name.equals(getFullClassName("MissingClass"))) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span>        throw new 
ClassNotFoundException(name);<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      }<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>      return super.findClass(name);<a 
name="line.138"></a>
+<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span>  @Test<a name="line.142"></a>
+<span class="sourceLineNo">143</span>  public void testMissingClass() throws 
IOException {<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    MissingClassClassLoader 
missingClassClassLoader = new MissingClassClassLoader();<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    List&lt;CoprocessorViolation&gt; 
violations = validate(missingClassClassLoader,<a name="line.145"></a>
+<span class="sourceLineNo">146</span>        "MissingClassObserver");<a 
name="line.146"></a>
+<span class="sourceLineNo">147</span>    assertEquals(1, violations.size());<a 
name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    assertEquals(Severity.ERROR, 
violation.getSeverity());<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    
assertTrue(violation.getMessage().contains(<a name="line.151"></a>
+<span class="sourceLineNo">152</span>        
"java.lang.ClassNotFoundException: " +<a name="line.152"></a>
+<span class="sourceLineNo">153</span>        
"org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidatorTest$MissingClass"));<a
 name="line.153"></a>
+<span class="sourceLineNo">154</span>  }<a name="line.154"></a>
+<span class="sourceLineNo">155</span><a name="line.155"></a>
+<span class="sourceLineNo">156</span>  /*<a name="line.156"></a>
+<span class="sourceLineNo">157</span>   * ObsoleteMethod coprocessor 
implements preCreateTable method which has<a name="line.157"></a>
+<span class="sourceLineNo">158</span>   * HRegionInfo parameters. In our 
current implementation, we pass only<a name="line.158"></a>
+<span class="sourceLineNo">159</span>   * RegionInfo parameters, so this 
method won't be called by HBase at all.<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   */<a name="line.160"></a>
+<span class="sourceLineNo">161</span>  @SuppressWarnings("unused")<a 
name="line.161"></a>
+<span class="sourceLineNo">162</span>  private static class 
ObsoleteMethodObserver /* implements MasterObserver */ {<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    public void 
preCreateTable(ObserverContext&lt;MasterCoprocessorEnvironment&gt; ctx,<a 
name="line.163"></a>
+<span class="sourceLineNo">164</span>        HTableDescriptor desc, 
HRegionInfo[] regions) throws IOException {<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  @Test<a name="line.168"></a>
+<span class="sourceLineNo">169</span>  public void testObsoleteMethod() throws 
IOException {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    List&lt;CoprocessorViolation&gt; 
violations = validate("ObsoleteMethodObserver");<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    assertEquals(1, violations.size());<a 
name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>    CoprocessorViolation violation = 
violations.get(0);<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    assertEquals(Severity.WARNING, 
violation.getSeverity());<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    
assertTrue(violation.getMessage().contains("was removed from new coprocessor 
API"));<a name="line.175"></a>
+<span class="sourceLineNo">176</span>  }<a name="line.176"></a>
+<span class="sourceLineNo">177</span>}<a name="line.177"></a>
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+</pre>
+</div>
+</body>
+</html>

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