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apache / archiva-web-content / 7c2ce1786c818e0e567e48c56f17c69702f385b0 / . / ref / 1.4-M4 / apidocs / src-html / org / apache / archiva / common / plexusbridge / PlexusSisuBridge.html
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<FONT color="green">001</FONT> package org.apache.archiva.common.plexusbridge;<a name="line.1"></a>
<FONT color="green">002</FONT> <a name="line.2"></a>
<FONT color="green">003</FONT> /*<a name="line.3"></a>
<FONT color="green">004</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.4"></a>
<FONT color="green">005</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.5"></a>
<FONT color="green">006</FONT> * distributed with this work for additional information<a name="line.6"></a>
<FONT color="green">007</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.7"></a>
<FONT color="green">008</FONT> * to you under the Apache License, Version 2.0 (the<a name="line.8"></a>
<FONT color="green">009</FONT> * "License"); you may not use this file except in compliance<a name="line.9"></a>
<FONT color="green">010</FONT> * with the License. You may obtain a copy of the License at<a name="line.10"></a>
<FONT color="green">011</FONT> *<a name="line.11"></a>
<FONT color="green">012</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.12"></a>
<FONT color="green">013</FONT> *<a name="line.13"></a>
<FONT color="green">014</FONT> * Unless required by applicable law or agreed to in writing,<a name="line.14"></a>
<FONT color="green">015</FONT> * software distributed under the License is distributed on an<a name="line.15"></a>
<FONT color="green">016</FONT> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.16"></a>
<FONT color="green">017</FONT> * KIND, either express or implied. See the License for the<a name="line.17"></a>
<FONT color="green">018</FONT> * specific language governing permissions and limitations<a name="line.18"></a>
<FONT color="green">019</FONT> * under the License.<a name="line.19"></a>
<FONT color="green">020</FONT> */<a name="line.20"></a>
<FONT color="green">021</FONT> <a name="line.21"></a>
<FONT color="green">022</FONT> import org.codehaus.plexus.DefaultContainerConfiguration;<a name="line.22"></a>
<FONT color="green">023</FONT> import org.codehaus.plexus.DefaultPlexusContainer;<a name="line.23"></a>
<FONT color="green">024</FONT> import org.codehaus.plexus.PlexusConstants;<a name="line.24"></a>
<FONT color="green">025</FONT> import org.codehaus.plexus.PlexusContainerException;<a name="line.25"></a>
<FONT color="green">026</FONT> import org.codehaus.plexus.classworlds.ClassWorld;<a name="line.26"></a>
<FONT color="green">027</FONT> import org.codehaus.plexus.classworlds.realm.ClassRealm;<a name="line.27"></a>
<FONT color="green">028</FONT> import org.codehaus.plexus.component.repository.exception.ComponentLookupException;<a name="line.28"></a>
<FONT color="green">029</FONT> import org.slf4j.Logger;<a name="line.29"></a>
<FONT color="green">030</FONT> import org.slf4j.LoggerFactory;<a name="line.30"></a>
<FONT color="green">031</FONT> import org.springframework.stereotype.Service;<a name="line.31"></a>
<FONT color="green">032</FONT> <a name="line.32"></a>
<FONT color="green">033</FONT> import javax.annotation.PostConstruct;<a name="line.33"></a>
<FONT color="green">034</FONT> import java.lang.reflect.Method;<a name="line.34"></a>
<FONT color="green">035</FONT> import java.net.URL;<a name="line.35"></a>
<FONT color="green">036</FONT> import java.net.URLClassLoader;<a name="line.36"></a>
<FONT color="green">037</FONT> import java.util.List;<a name="line.37"></a>
<FONT color="green">038</FONT> import java.util.Map;<a name="line.38"></a>
<FONT color="green">039</FONT> <a name="line.39"></a>
<FONT color="green">040</FONT> /**<a name="line.40"></a>
<FONT color="green">041</FONT> * Simple component which will initiate the plexus shim component<a name="line.41"></a>
<FONT color="green">042</FONT> * to see plexus components inside a guice container.&lt;br/&gt;<a name="line.42"></a>
<FONT color="green">043</FONT> * So move all of this here to be able to change quickly if needed.<a name="line.43"></a>
<FONT color="green">044</FONT> *<a name="line.44"></a>
<FONT color="green">045</FONT> * @author Olivier Lamy<a name="line.45"></a>
<FONT color="green">046</FONT> */<a name="line.46"></a>
<FONT color="green">047</FONT> @Service( "plexusSisuBridge" )<a name="line.47"></a>
<FONT color="green">048</FONT> public class PlexusSisuBridge<a name="line.48"></a>
<FONT color="green">049</FONT> {<a name="line.49"></a>
<FONT color="green">050</FONT> <a name="line.50"></a>
<FONT color="green">051</FONT> private Logger log = LoggerFactory.getLogger( getClass() );<a name="line.51"></a>
<FONT color="green">052</FONT> <a name="line.52"></a>
<FONT color="green">053</FONT> private boolean containerAutoWiring = true;<a name="line.53"></a>
<FONT color="green">054</FONT> <a name="line.54"></a>
<FONT color="green">055</FONT> private String containerClassPathScanning = PlexusConstants.SCANNING_ON;<a name="line.55"></a>
<FONT color="green">056</FONT> <a name="line.56"></a>
<FONT color="green">057</FONT> private String containerComponentVisibility = PlexusConstants.REALM_VISIBILITY;<a name="line.57"></a>
<FONT color="green">058</FONT> <a name="line.58"></a>
<FONT color="green">059</FONT> private URL overridingComponentsXml;<a name="line.59"></a>
<FONT color="green">060</FONT> <a name="line.60"></a>
<FONT color="green">061</FONT> private ClassRealm containerRealm;<a name="line.61"></a>
<FONT color="green">062</FONT> <a name="line.62"></a>
<FONT color="green">063</FONT> private DefaultPlexusContainer plexusContainer;<a name="line.63"></a>
<FONT color="green">064</FONT> <a name="line.64"></a>
<FONT color="green">065</FONT> @PostConstruct<a name="line.65"></a>
<FONT color="green">066</FONT> public void initialize()<a name="line.66"></a>
<FONT color="green">067</FONT> throws PlexusSisuBridgeException<a name="line.67"></a>
<FONT color="green">068</FONT> {<a name="line.68"></a>
<FONT color="green">069</FONT> DefaultContainerConfiguration conf = new DefaultContainerConfiguration();<a name="line.69"></a>
<FONT color="green">070</FONT> <a name="line.70"></a>
<FONT color="green">071</FONT> conf.setAutoWiring( containerAutoWiring );<a name="line.71"></a>
<FONT color="green">072</FONT> conf.setClassPathScanning( containerClassPathScanning );<a name="line.72"></a>
<FONT color="green">073</FONT> conf.setComponentVisibility( containerComponentVisibility );<a name="line.73"></a>
<FONT color="green">074</FONT> <a name="line.74"></a>
<FONT color="green">075</FONT> conf.setContainerConfigurationURL( overridingComponentsXml );<a name="line.75"></a>
<FONT color="green">076</FONT> <a name="line.76"></a>
<FONT color="green">077</FONT> ClassWorld classWorld = new ClassWorld();<a name="line.77"></a>
<FONT color="green">078</FONT> <a name="line.78"></a>
<FONT color="green">079</FONT> ClassLoader tccl = Thread.currentThread().getContextClassLoader();<a name="line.79"></a>
<FONT color="green">080</FONT> <a name="line.80"></a>
<FONT color="green">081</FONT> containerRealm = new ClassRealm( classWorld, "maven", tccl );<a name="line.81"></a>
<FONT color="green">082</FONT> <a name="line.82"></a>
<FONT color="green">083</FONT> // olamy hackhish but plexus-sisu need a URLClassLoader with URL filled<a name="line.83"></a>
<FONT color="green">084</FONT> <a name="line.84"></a>
<FONT color="green">085</FONT> if ( tccl instanceof URLClassLoader )<a name="line.85"></a>
<FONT color="green">086</FONT> {<a name="line.86"></a>
<FONT color="green">087</FONT> URL[] urls = ( (URLClassLoader) tccl ).getURLs();<a name="line.87"></a>
<FONT color="green">088</FONT> for ( URL url : urls )<a name="line.88"></a>
<FONT color="green">089</FONT> {<a name="line.89"></a>
<FONT color="green">090</FONT> containerRealm.addURL( url );<a name="line.90"></a>
<FONT color="green">091</FONT> }<a name="line.91"></a>
<FONT color="green">092</FONT> }<a name="line.92"></a>
<FONT color="green">093</FONT> <a name="line.93"></a>
<FONT color="green">094</FONT> conf.setRealm( containerRealm );<a name="line.94"></a>
<FONT color="green">095</FONT> <a name="line.95"></a>
<FONT color="green">096</FONT> //conf.setClassWorld( classWorld );<a name="line.96"></a>
<FONT color="green">097</FONT> <a name="line.97"></a>
<FONT color="green">098</FONT> ClassLoader ori = Thread.currentThread().getContextClassLoader();<a name="line.98"></a>
<FONT color="green">099</FONT> <a name="line.99"></a>
<FONT color="green">100</FONT> try<a name="line.100"></a>
<FONT color="green">101</FONT> {<a name="line.101"></a>
<FONT color="green">102</FONT> Thread.currentThread().setContextClassLoader( containerRealm );<a name="line.102"></a>
<FONT color="green">103</FONT> plexusContainer = new DefaultPlexusContainer( conf );<a name="line.103"></a>
<FONT color="green">104</FONT> }<a name="line.104"></a>
<FONT color="green">105</FONT> catch ( PlexusContainerException e )<a name="line.105"></a>
<FONT color="green">106</FONT> {<a name="line.106"></a>
<FONT color="green">107</FONT> throw new PlexusSisuBridgeException( e.getMessage(), e );<a name="line.107"></a>
<FONT color="green">108</FONT> }<a name="line.108"></a>
<FONT color="green">109</FONT> finally<a name="line.109"></a>
<FONT color="green">110</FONT> {<a name="line.110"></a>
<FONT color="green">111</FONT> Thread.currentThread().setContextClassLoader( ori );<a name="line.111"></a>
<FONT color="green">112</FONT> }<a name="line.112"></a>
<FONT color="green">113</FONT> }<a name="line.113"></a>
<FONT color="green">114</FONT> <a name="line.114"></a>
<FONT color="green">115</FONT> <a name="line.115"></a>
<FONT color="green">116</FONT> private URL[] getClassLoaderURLs( ClassLoader classLoader )<a name="line.116"></a>
<FONT color="green">117</FONT> {<a name="line.117"></a>
<FONT color="green">118</FONT> try<a name="line.118"></a>
<FONT color="green">119</FONT> {<a name="line.119"></a>
<FONT color="green">120</FONT> // can be WebappClassLoader when using tomcat maven plugin<a name="line.120"></a>
<FONT color="green">121</FONT> //java.net.URL[] getURLs<a name="line.121"></a>
<FONT color="green">122</FONT> Method method = classLoader.getClass().getMethod( "getURLs", new Class[]{ } );<a name="line.122"></a>
<FONT color="green">123</FONT> if ( method != null )<a name="line.123"></a>
<FONT color="green">124</FONT> {<a name="line.124"></a>
<FONT color="green">125</FONT> return (URL[]) method.invoke( classLoader, null );<a name="line.125"></a>
<FONT color="green">126</FONT> }<a name="line.126"></a>
<FONT color="green">127</FONT> }<a name="line.127"></a>
<FONT color="green">128</FONT> catch ( Exception e )<a name="line.128"></a>
<FONT color="green">129</FONT> {<a name="line.129"></a>
<FONT color="green">130</FONT> log.info( "ignore issue trying to find url[] from classloader {}", e.getMessage() );<a name="line.130"></a>
<FONT color="green">131</FONT> }<a name="line.131"></a>
<FONT color="green">132</FONT> return new URL[]{ };<a name="line.132"></a>
<FONT color="green">133</FONT> }<a name="line.133"></a>
<FONT color="green">134</FONT> <a name="line.134"></a>
<FONT color="green">135</FONT> public &lt;T&gt; T lookup( Class&lt;T&gt; clazz )<a name="line.135"></a>
<FONT color="green">136</FONT> throws PlexusSisuBridgeException<a name="line.136"></a>
<FONT color="green">137</FONT> {<a name="line.137"></a>
<FONT color="green">138</FONT> ClassLoader ori = Thread.currentThread().getContextClassLoader();<a name="line.138"></a>
<FONT color="green">139</FONT> try<a name="line.139"></a>
<FONT color="green">140</FONT> {<a name="line.140"></a>
<FONT color="green">141</FONT> Thread.currentThread().setContextClassLoader( containerRealm );<a name="line.141"></a>
<FONT color="green">142</FONT> return plexusContainer.lookup( clazz );<a name="line.142"></a>
<FONT color="green">143</FONT> }<a name="line.143"></a>
<FONT color="green">144</FONT> catch ( ComponentLookupException e )<a name="line.144"></a>
<FONT color="green">145</FONT> {<a name="line.145"></a>
<FONT color="green">146</FONT> throw new PlexusSisuBridgeException( e.getMessage(), e );<a name="line.146"></a>
<FONT color="green">147</FONT> }<a name="line.147"></a>
<FONT color="green">148</FONT> finally<a name="line.148"></a>
<FONT color="green">149</FONT> {<a name="line.149"></a>
<FONT color="green">150</FONT> Thread.currentThread().setContextClassLoader( ori );<a name="line.150"></a>
<FONT color="green">151</FONT> }<a name="line.151"></a>
<FONT color="green">152</FONT> }<a name="line.152"></a>
<FONT color="green">153</FONT> <a name="line.153"></a>
<FONT color="green">154</FONT> public &lt;T&gt; T lookup( Class&lt;T&gt; clazz, String hint )<a name="line.154"></a>
<FONT color="green">155</FONT> throws PlexusSisuBridgeException<a name="line.155"></a>
<FONT color="green">156</FONT> {<a name="line.156"></a>
<FONT color="green">157</FONT> ClassLoader ori = Thread.currentThread().getContextClassLoader();<a name="line.157"></a>
<FONT color="green">158</FONT> <a name="line.158"></a>
<FONT color="green">159</FONT> try<a name="line.159"></a>
<FONT color="green">160</FONT> {<a name="line.160"></a>
<FONT color="green">161</FONT> Thread.currentThread().setContextClassLoader( containerRealm );<a name="line.161"></a>
<FONT color="green">162</FONT> return plexusContainer.lookup( clazz, hint );<a name="line.162"></a>
<FONT color="green">163</FONT> }<a name="line.163"></a>
<FONT color="green">164</FONT> catch ( ComponentLookupException e )<a name="line.164"></a>
<FONT color="green">165</FONT> {<a name="line.165"></a>
<FONT color="green">166</FONT> throw new PlexusSisuBridgeException( e.getMessage(), e );<a name="line.166"></a>
<FONT color="green">167</FONT> }<a name="line.167"></a>
<FONT color="green">168</FONT> finally<a name="line.168"></a>
<FONT color="green">169</FONT> {<a name="line.169"></a>
<FONT color="green">170</FONT> Thread.currentThread().setContextClassLoader( ori );<a name="line.170"></a>
<FONT color="green">171</FONT> }<a name="line.171"></a>
<FONT color="green">172</FONT> }<a name="line.172"></a>
<FONT color="green">173</FONT> <a name="line.173"></a>
<FONT color="green">174</FONT> public &lt;T&gt; List&lt;T&gt; lookupList( Class&lt;T&gt; clazz )<a name="line.174"></a>
<FONT color="green">175</FONT> throws PlexusSisuBridgeException<a name="line.175"></a>
<FONT color="green">176</FONT> {<a name="line.176"></a>
<FONT color="green">177</FONT> ClassLoader ori = Thread.currentThread().getContextClassLoader();<a name="line.177"></a>
<FONT color="green">178</FONT> <a name="line.178"></a>
<FONT color="green">179</FONT> try<a name="line.179"></a>
<FONT color="green">180</FONT> {<a name="line.180"></a>
<FONT color="green">181</FONT> Thread.currentThread().setContextClassLoader( containerRealm );<a name="line.181"></a>
<FONT color="green">182</FONT> return plexusContainer.lookupList( clazz );<a name="line.182"></a>
<FONT color="green">183</FONT> }<a name="line.183"></a>
<FONT color="green">184</FONT> catch ( ComponentLookupException e )<a name="line.184"></a>
<FONT color="green">185</FONT> {<a name="line.185"></a>
<FONT color="green">186</FONT> throw new PlexusSisuBridgeException( e.getMessage(), e );<a name="line.186"></a>
<FONT color="green">187</FONT> }<a name="line.187"></a>
<FONT color="green">188</FONT> finally<a name="line.188"></a>
<FONT color="green">189</FONT> {<a name="line.189"></a>
<FONT color="green">190</FONT> Thread.currentThread().setContextClassLoader( ori );<a name="line.190"></a>
<FONT color="green">191</FONT> }<a name="line.191"></a>
<FONT color="green">192</FONT> }<a name="line.192"></a>
<FONT color="green">193</FONT> <a name="line.193"></a>
<FONT color="green">194</FONT> public &lt;T&gt; Map&lt;String, T&gt; lookupMap( Class&lt;T&gt; clazz )<a name="line.194"></a>
<FONT color="green">195</FONT> throws PlexusSisuBridgeException<a name="line.195"></a>
<FONT color="green">196</FONT> {<a name="line.196"></a>
<FONT color="green">197</FONT> ClassLoader ori = Thread.currentThread().getContextClassLoader();<a name="line.197"></a>
<FONT color="green">198</FONT> <a name="line.198"></a>
<FONT color="green">199</FONT> try<a name="line.199"></a>
<FONT color="green">200</FONT> {<a name="line.200"></a>
<FONT color="green">201</FONT> Thread.currentThread().setContextClassLoader( containerRealm );<a name="line.201"></a>
<FONT color="green">202</FONT> return plexusContainer.lookupMap( clazz );<a name="line.202"></a>
<FONT color="green">203</FONT> }<a name="line.203"></a>
<FONT color="green">204</FONT> catch ( ComponentLookupException e )<a name="line.204"></a>
<FONT color="green">205</FONT> {<a name="line.205"></a>
<FONT color="green">206</FONT> throw new PlexusSisuBridgeException( e.getMessage(), e );<a name="line.206"></a>
<FONT color="green">207</FONT> }<a name="line.207"></a>
<FONT color="green">208</FONT> finally<a name="line.208"></a>
<FONT color="green">209</FONT> {<a name="line.209"></a>
<FONT color="green">210</FONT> Thread.currentThread().setContextClassLoader( ori );<a name="line.210"></a>
<FONT color="green">211</FONT> }<a name="line.211"></a>
<FONT color="green">212</FONT> }<a name="line.212"></a>
<FONT color="green">213</FONT> }<a name="line.213"></a>
</PRE>
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