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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.List;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Objects;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.StringJoiner;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.concurrent.CompletableFuture;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.function.Supplier;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.stream.Collectors;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.AsyncAdmin;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.AsyncConnection;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.junit.ClassRule;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.junit.Rule;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.junit.rules.ExternalResource;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.junit.rules.TestRule;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.slf4j.Logger;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.slf4j.LoggerFactory;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>/**<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * A {@link TestRule} that clears all user namespaces and tables {@link ExternalResource#before()<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * before} the test executes. Can be used in either the {@link Rule} or {@link ClassRule} positions.<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Lazily realizes the provided {@link AsyncConnection} so as to avoid initialization races with<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * other {@link Rule Rules}. <b>Does not</b> {@link AsyncConnection#close() close()} provided<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * connection instance when finished.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * </p><a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * Use in combination with {@link MiniClusterRule} and {@link ConnectionRule}, for example:<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> *<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * <pre><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * {<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * &#64;code<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * public class TestMyClass {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * &#64;ClassRule<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * public static final MiniClusterRule miniClusterRule = MiniClusterRule.newBuilder().build();<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> *<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * private final ConnectionRule connectionRule =<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * new ConnectionRule(miniClusterRule::createConnection);<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * private final ClearUserNamespacesAndTablesRule clearUserNamespacesAndTablesRule =<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * new ClearUserNamespacesAndTablesRule(connectionRule::getConnection);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> *<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * &#64;Rule<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * public TestRule rule =<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * RuleChain.outerRule(connectionRule).around(clearUserNamespacesAndTablesRule);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * }<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * }<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * </pre><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> */<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>public class ClearUserNamespacesAndTablesRule extends ExternalResource {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> private static final Logger logger =<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> LoggerFactory.getLogger(ClearUserNamespacesAndTablesRule.class);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private final Supplier<AsyncConnection> connectionSupplier;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private AsyncAdmin admin;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> public ClearUserNamespacesAndTablesRule(final Supplier<AsyncConnection> connectionSupplier) {<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> this.connectionSupplier = connectionSupplier;<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> @Override<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> protected void before() throws Throwable {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> final AsyncConnection connection = Objects.requireNonNull(connectionSupplier.get());<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> admin = connection.getAdmin();<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> clearTablesAndNamespaces().join();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> }<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private CompletableFuture<Void> clearTablesAndNamespaces() {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> return deleteUserTables().thenCompose(_void -> deleteUserNamespaces());<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> }<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private CompletableFuture<Void> deleteUserTables() {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> return listTableNames().thenApply(tableNames -> tableNames.stream()<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> .map(tableName -> disableIfEnabled(tableName).thenCompose(_void -> deleteTable(tableName)))<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> .toArray(CompletableFuture[]::new)).thenCompose(CompletableFuture::allOf);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> private CompletableFuture<List<TableName>> listTableNames() {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return CompletableFuture.runAsync(() -> logger.trace("listing tables"))<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> .thenCompose(_void -> admin.listTableNames(false)).thenApply(tableNames -> {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> if (logger.isTraceEnabled()) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> final StringJoiner joiner = new StringJoiner(", ", "[", "]");<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> tableNames.stream().map(TableName::getNameAsString).forEach(joiner::add);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> logger.trace("found existing tables {}", joiner.toString());<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> }<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> return tableNames;<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> });<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> private CompletableFuture<Boolean> isTableEnabled(final TableName tableName) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> return admin.isTableEnabled(tableName).thenApply(isEnabled -> {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> logger.trace("table {} is enabled.", tableName);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> return isEnabled;<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> private CompletableFuture<Void> disableIfEnabled(final TableName tableName) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> return isTableEnabled(tableName).thenCompose(<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> isEnabled -> isEnabled ? disableTable(tableName) : CompletableFuture.completedFuture(null));<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> private CompletableFuture<Void> disableTable(final TableName tableName) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> return CompletableFuture.runAsync(() -> logger.trace("disabling enabled table {}", tableName))<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> .thenCompose(_void -> admin.disableTable(tableName));<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> private CompletableFuture<Void> deleteTable(final TableName tableName) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> return CompletableFuture.runAsync(() -> logger.trace("deleting disabled table {}", tableName))<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> .thenCompose(_void -> admin.deleteTable(tableName));<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> private CompletableFuture<List<String>> listUserNamespaces() {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> return CompletableFuture.runAsync(() -> logger.trace("listing namespaces"))<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> .thenCompose(_void -> admin.listNamespaceDescriptors()).thenApply(namespaceDescriptors -> {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> final StringJoiner joiner = new StringJoiner(", ", "[", "]");<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> final List<String> names = namespaceDescriptors.stream().map(NamespaceDescriptor::getName)<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> .peek(joiner::add).collect(Collectors.toList());<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> logger.trace("found existing namespaces {}", joiner);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> return names;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> })<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> .thenApply(namespaces -> namespaces.stream()<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> .filter(<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> namespace -> !Objects.equals(namespace, NamespaceDescriptor.SYSTEM_NAMESPACE.getName()))<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> .filter(<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> namespace -> !Objects.equals(namespace, NamespaceDescriptor.DEFAULT_NAMESPACE.getName()))<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> .collect(Collectors.toList()));<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> private CompletableFuture<Void> deleteNamespace(final String namespace) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> return CompletableFuture.runAsync(() -> logger.trace("deleting namespace {}", namespace))<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> .thenCompose(_void -> admin.deleteNamespace(namespace));<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> private CompletableFuture<Void> deleteUserNamespaces() {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> return listUserNamespaces().thenCompose(namespaces -> CompletableFuture<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> .allOf(namespaces.stream().map(this::deleteNamespace).toArray(CompletableFuture[]::new)));<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span>}<a name="line.152"></a> |
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| </pre> |
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