Modified: websites/production/turbine/content/fulcrum/fulcrum-factory/apidocs/src-html/org/apache/fulcrum/factory/DefaultFactoryService.html ============================================================================== --- websites/production/turbine/content/fulcrum/fulcrum-factory/apidocs/src-html/org/apache/fulcrum/factory/DefaultFactoryService.html (original) +++ websites/production/turbine/content/fulcrum/fulcrum-factory/apidocs/src-html/org/apache/fulcrum/factory/DefaultFactoryService.html Fri Dec 9 09:44:00 2016 @@ -1,546 +1,626 @@ -<HTML> -<BODY BGCOLOR="white"> -<PRE> -<FONT color="green">001</FONT> package org.apache.fulcrum.factory;<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 java.io.ByteArrayInputStream;<a name="line.22"></a> -<FONT color="green">023</FONT> import java.io.ByteArrayOutputStream;<a name="line.23"></a> -<FONT color="green">024</FONT> import java.io.ObjectOutputStream;<a name="line.24"></a> -<FONT color="green">025</FONT> import java.util.ArrayList;<a name="line.25"></a> -<FONT color="green">026</FONT> import java.util.HashMap;<a name="line.26"></a> -<FONT color="green">027</FONT> import java.util.Iterator;<a name="line.27"></a> -<FONT color="green">028</FONT> <a name="line.28"></a> -<FONT color="green">029</FONT> import org.apache.avalon.framework.activity.Initializable;<a name="line.29"></a> -<FONT color="green">030</FONT> import org.apache.avalon.framework.configuration.Configurable;<a name="line.30"></a> -<FONT color="green">031</FONT> import org.apache.avalon.framework.configuration.Configuration;<a name="line.31"></a> -<FONT color="green">032</FONT> import org.apache.avalon.framework.configuration.ConfigurationException;<a name="line.32"></a> -<FONT color="green">033</FONT> import org.apache.avalon.framework.logger.AbstractLogEnabled;<a name="line.33"></a> -<FONT color="green">034</FONT> import org.apache.fulcrum.factory.utils.ObjectInputStreamForContext;<a name="line.34"></a> -<FONT color="green">035</FONT> <a name="line.35"></a> -<FONT color="green">036</FONT> /**<a name="line.36"></a> -<FONT color="green">037</FONT> * The Factory Service instantiates objects using specified<a name="line.37"></a> -<FONT color="green">038</FONT> * class loaders. If none is specified, the default one<a name="line.38"></a> -<FONT color="green">039</FONT> * will be used.<a name="line.39"></a> -<FONT color="green">040</FONT> *<a name="line.40"></a> -<FONT color="green">041</FONT> * @author <a href="mailto:[email protected]">Eric Pugh</a><a name="line.41"></a> -<FONT color="green">042</FONT> * @author <a href="mailto:[email protected]">Ilkka Priha</a><a name="line.42"></a> -<FONT color="green">043</FONT> * @author <a href="mailto:[email protected]">Stephen McConnell</a><a name="line.43"></a> -<FONT color="green">044</FONT> * @version $Id: DefaultFactoryService.java 670327 2008-06-22 09:32:41Z tv $<a name="line.44"></a> -<FONT color="green">045</FONT> *<a name="line.45"></a> -<FONT color="green">046</FONT> * @avalon.component name="factory" lifestyle="singleton"<a name="line.46"></a> -<FONT color="green">047</FONT> * @avalon.service type="org.apache.fulcrum.factory.FactoryService"<a name="line.47"></a> -<FONT color="green">048</FONT> */<a name="line.48"></a> -<FONT color="green">049</FONT> public class DefaultFactoryService<a name="line.49"></a> -<FONT color="green">050</FONT> extends AbstractLogEnabled<a name="line.50"></a> -<FONT color="green">051</FONT> implements FactoryService, Configurable, Initializable<a name="line.51"></a> -<FONT color="green">052</FONT> {<a name="line.52"></a> -<FONT color="green">053</FONT> protected boolean initialized = false;<a name="line.53"></a> -<FONT color="green">054</FONT> //private boolean disposed = false;<a name="line.54"></a> -<FONT color="green">055</FONT> /**<a name="line.55"></a> -<FONT color="green">056</FONT> * The property specifying a set of additional class loaders.<a name="line.56"></a> -<FONT color="green">057</FONT> */<a name="line.57"></a> -<FONT color="green">058</FONT> private static final String CLASS_LOADER = "classloader";<a name="line.58"></a> -<FONT color="green">059</FONT> /**<a name="line.59"></a> -<FONT color="green">060</FONT> * The property prefix specifying additional object factories.<a name="line.60"></a> -<FONT color="green">061</FONT> */<a name="line.61"></a> -<FONT color="green">062</FONT> private static final String OBJECT_FACTORY = "object-factory";<a name="line.62"></a> -<FONT color="green">063</FONT> /**<a name="line.63"></a> -<FONT color="green">064</FONT> * The name of the default factory.<a name="line.64"></a> -<FONT color="green">065</FONT> */<a name="line.65"></a> -<FONT color="green">066</FONT> protected static final String DEFAULT_FACTORY = "default";<a name="line.66"></a> -<FONT color="green">067</FONT> /**<a name="line.67"></a> -<FONT color="green">068</FONT> * Primitive classes for reflection of constructors.<a name="line.68"></a> -<FONT color="green">069</FONT> */<a name="line.69"></a> -<FONT color="green">070</FONT> private static HashMap primitiveClasses;<a name="line.70"></a> -<FONT color="green">071</FONT> {<a name="line.71"></a> -<FONT color="green">072</FONT> primitiveClasses = new HashMap(8);<a name="line.72"></a> -<FONT color="green">073</FONT> primitiveClasses.put(Boolean.TYPE.toString(), Boolean.TYPE);<a name="line.73"></a> -<FONT color="green">074</FONT> primitiveClasses.put(Character.TYPE.toString(), Character.TYPE);<a name="line.74"></a> -<FONT color="green">075</FONT> primitiveClasses.put(Byte.TYPE.toString(), Byte.TYPE);<a name="line.75"></a> -<FONT color="green">076</FONT> primitiveClasses.put(Short.TYPE.toString(), Short.TYPE);<a name="line.76"></a> -<FONT color="green">077</FONT> primitiveClasses.put(Integer.TYPE.toString(), Integer.TYPE);<a name="line.77"></a> -<FONT color="green">078</FONT> primitiveClasses.put(Long.TYPE.toString(), Long.TYPE);<a name="line.78"></a> -<FONT color="green">079</FONT> primitiveClasses.put(Float.TYPE.toString(), Float.TYPE);<a name="line.79"></a> -<FONT color="green">080</FONT> primitiveClasses.put(Double.TYPE.toString(), Double.TYPE);<a name="line.80"></a> -<FONT color="green">081</FONT> }<a name="line.81"></a> -<FONT color="green">082</FONT> /**<a name="line.82"></a> -<FONT color="green">083</FONT> * temporary storage of class names between configure and initialize<a name="line.83"></a> -<FONT color="green">084</FONT> */<a name="line.84"></a> -<FONT color="green">085</FONT> private String[] loaderNames;<a name="line.85"></a> -<FONT color="green">086</FONT> /**<a name="line.86"></a> -<FONT color="green">087</FONT> * Additional class loaders.<a name="line.87"></a> -<FONT color="green">088</FONT> */<a name="line.88"></a> -<FONT color="green">089</FONT> private ArrayList classLoaders = new ArrayList();<a name="line.89"></a> -<FONT color="green">090</FONT> /**<a name="line.90"></a> -<FONT color="green">091</FONT> * Customized object factories.<a name="line.91"></a> -<FONT color="green">092</FONT> */<a name="line.92"></a> -<FONT color="green">093</FONT> private HashMap objectFactories = new HashMap();<a name="line.93"></a> -<FONT color="green">094</FONT> /**<a name="line.94"></a> -<FONT color="green">095</FONT> * Gets the class of a primitive type.<a name="line.95"></a> -<FONT color="green">096</FONT> *<a name="line.96"></a> -<FONT color="green">097</FONT> * @param type a primitive type.<a name="line.97"></a> -<FONT color="green">098</FONT> * @return the corresponding class, or null.<a name="line.98"></a> -<FONT color="green">099</FONT> */<a name="line.99"></a> -<FONT color="green">100</FONT> protected static Class getPrimitiveClass(String type)<a name="line.100"></a> -<FONT color="green">101</FONT> {<a name="line.101"></a> -<FONT color="green">102</FONT> return (Class) primitiveClasses.get(type);<a name="line.102"></a> -<FONT color="green">103</FONT> }<a name="line.103"></a> -<FONT color="green">104</FONT> <a name="line.104"></a> -<FONT color="green">105</FONT> /**<a name="line.105"></a> -<FONT color="green">106</FONT> * Gets an instance of a named class.<a name="line.106"></a> -<FONT color="green">107</FONT> *<a name="line.107"></a> -<FONT color="green">108</FONT> * @param className the name of the class.<a name="line.108"></a> -<FONT color="green">109</FONT> * @return the instance.<a name="line.109"></a> -<FONT color="green">110</FONT> * @throws FactoryException if instantiation fails.<a name="line.110"></a> -<FONT color="green">111</FONT> */<a name="line.111"></a> -<FONT color="green">112</FONT> public Object getInstance(String className) throws FactoryException<a name="line.112"></a> -<FONT color="green">113</FONT> {<a name="line.113"></a> -<FONT color="green">114</FONT> if (className == null)<a name="line.114"></a> -<FONT color="green">115</FONT> {<a name="line.115"></a> -<FONT color="green">116</FONT> throw new FactoryException("Missing String className");<a name="line.116"></a> -<FONT color="green">117</FONT> }<a name="line.117"></a> -<FONT color="green">118</FONT> Factory factory = getFactory(className);<a name="line.118"></a> -<FONT color="green">119</FONT> if (factory == null)<a name="line.119"></a> -<FONT color="green">120</FONT> {<a name="line.120"></a> -<FONT color="green">121</FONT> Class clazz;<a name="line.121"></a> -<FONT color="green">122</FONT> try<a name="line.122"></a> -<FONT color="green">123</FONT> {<a name="line.123"></a> -<FONT color="green">124</FONT> clazz = loadClass(className);<a name="line.124"></a> -<FONT color="green">125</FONT> }<a name="line.125"></a> -<FONT color="green">126</FONT> catch (ClassNotFoundException x)<a name="line.126"></a> -<FONT color="green">127</FONT> {<a name="line.127"></a> -<FONT color="green">128</FONT> throw new FactoryException("Instantiation failed for class " + className, x);<a name="line.128"></a> -<FONT color="green">129</FONT> }<a name="line.129"></a> -<FONT color="green">130</FONT> return getInstance(clazz);<a name="line.130"></a> -<FONT color="green">131</FONT> }<a name="line.131"></a> -<FONT color="green">132</FONT> else<a name="line.132"></a> -<FONT color="green">133</FONT> {<a name="line.133"></a> -<FONT color="green">134</FONT> return factory.getInstance();<a name="line.134"></a> -<FONT color="green">135</FONT> }<a name="line.135"></a> -<FONT color="green">136</FONT> }<a name="line.136"></a> -<FONT color="green">137</FONT> /**<a name="line.137"></a> -<FONT color="green">138</FONT> * Gets an instance of a named class using a specified class loader.<a name="line.138"></a> -<FONT color="green">139</FONT> *<a name="line.139"></a> -<FONT color="green">140</FONT> * <p>Class loaders are supported only if the isLoaderSupported<a name="line.140"></a> -<FONT color="green">141</FONT> * method returns true. Otherwise the loader parameter is ignored.<a name="line.141"></a> -<FONT color="green">142</FONT> *<a name="line.142"></a> -<FONT color="green">143</FONT> * @param className the name of the class.<a name="line.143"></a> -<FONT color="green">144</FONT> * @param loader the class loader.<a name="line.144"></a> -<FONT color="green">145</FONT> * @return the instance.<a name="line.145"></a> -<FONT color="green">146</FONT> * @throws FactoryException if instantiation fails.<a name="line.146"></a> -<FONT color="green">147</FONT> */<a name="line.147"></a> -<FONT color="green">148</FONT> public Object getInstance(String className, ClassLoader loader) throws FactoryException<a name="line.148"></a> -<FONT color="green">149</FONT> {<a name="line.149"></a> -<FONT color="green">150</FONT> Factory factory = getFactory(className);<a name="line.150"></a> -<FONT color="green">151</FONT> if (factory == null)<a name="line.151"></a> -<FONT color="green">152</FONT> {<a name="line.152"></a> -<FONT color="green">153</FONT> if (loader != null)<a name="line.153"></a> -<FONT color="green">154</FONT> {<a name="line.154"></a> -<FONT color="green">155</FONT> Class clazz;<a name="line.155"></a> -<FONT color="green">156</FONT> try<a name="line.156"></a> -<FONT color="green">157</FONT> {<a name="line.157"></a> -<FONT color="green">158</FONT> clazz = loadClass(className, loader);<a name="line.158"></a> -<FONT color="green">159</FONT> }<a name="line.159"></a> -<FONT color="green">160</FONT> catch (ClassNotFoundException x)<a name="line.160"></a> -<FONT color="green">161</FONT> {<a name="line.161"></a> -<FONT color="green">162</FONT> throw new FactoryException("Instantiation failed for class " + className, x);<a name="line.162"></a> -<FONT color="green">163</FONT> }<a name="line.163"></a> -<FONT color="green">164</FONT> return getInstance(clazz);<a name="line.164"></a> -<FONT color="green">165</FONT> }<a name="line.165"></a> -<FONT color="green">166</FONT> else<a name="line.166"></a> -<FONT color="green">167</FONT> {<a name="line.167"></a> -<FONT color="green">168</FONT> return getInstance(className);<a name="line.168"></a> -<FONT color="green">169</FONT> }<a name="line.169"></a> -<FONT color="green">170</FONT> }<a name="line.170"></a> -<FONT color="green">171</FONT> else<a name="line.171"></a> -<FONT color="green">172</FONT> {<a name="line.172"></a> -<FONT color="green">173</FONT> return factory.getInstance(loader);<a name="line.173"></a> -<FONT color="green">174</FONT> }<a name="line.174"></a> -<FONT color="green">175</FONT> }<a name="line.175"></a> -<FONT color="green">176</FONT> /**<a name="line.176"></a> -<FONT color="green">177</FONT> * Gets an instance of a named class.<a name="line.177"></a> -<FONT color="green">178</FONT> * Parameters for its constructor are given as an array of objects,<a name="line.178"></a> -<FONT color="green">179</FONT> * primitive types must be wrapped with a corresponding class.<a name="line.179"></a> -<FONT color="green">180</FONT> *<a name="line.180"></a> -<FONT color="green">181</FONT> * @param className the name of the class.<a name="line.181"></a> -<FONT color="green">182</FONT> * @param params an array containing the parameters of the constructor.<a name="line.182"></a> -<FONT color="green">183</FONT> * @param signature an array containing the signature of the constructor.<a name="line.183"></a> -<FONT color="green">184</FONT> * @return the instance.<a name="line.184"></a> -<FONT color="green">185</FONT> * @throws FactoryException if instantiation fails.<a name="line.185"></a> -<FONT color="green">186</FONT> */<a name="line.186"></a> -<FONT color="green">187</FONT> public Object getInstance(String className, Object[] params, String[] signature) throws FactoryException<a name="line.187"></a> -<FONT color="green">188</FONT> {<a name="line.188"></a> -<FONT color="green">189</FONT> Factory factory = getFactory(className);<a name="line.189"></a> -<FONT color="green">190</FONT> if (factory == null)<a name="line.190"></a> -<FONT color="green">191</FONT> {<a name="line.191"></a> -<FONT color="green">192</FONT> Class clazz;<a name="line.192"></a> -<FONT color="green">193</FONT> try<a name="line.193"></a> -<FONT color="green">194</FONT> {<a name="line.194"></a> -<FONT color="green">195</FONT> clazz = loadClass(className);<a name="line.195"></a> -<FONT color="green">196</FONT> }<a name="line.196"></a> -<FONT color="green">197</FONT> catch (ClassNotFoundException x)<a name="line.197"></a> -<FONT color="green">198</FONT> {<a name="line.198"></a> -<FONT color="green">199</FONT> throw new FactoryException("Instantiation failed for class " + className, x);<a name="line.199"></a> -<FONT color="green">200</FONT> }<a name="line.200"></a> -<FONT color="green">201</FONT> return getInstance(clazz, params, signature);<a name="line.201"></a> -<FONT color="green">202</FONT> }<a name="line.202"></a> -<FONT color="green">203</FONT> else<a name="line.203"></a> -<FONT color="green">204</FONT> {<a name="line.204"></a> -<FONT color="green">205</FONT> return factory.getInstance(params, signature);<a name="line.205"></a> -<FONT color="green">206</FONT> }<a name="line.206"></a> -<FONT color="green">207</FONT> }<a name="line.207"></a> -<FONT color="green">208</FONT> /**<a name="line.208"></a> -<FONT color="green">209</FONT> * Gets an instance of a named class using a specified class loader.<a name="line.209"></a> -<FONT color="green">210</FONT> * Parameters for its constructor are given as an array of objects,<a name="line.210"></a> -<FONT color="green">211</FONT> * primitive types must be wrapped with a corresponding class.<a name="line.211"></a> -<FONT color="green">212</FONT> *<a name="line.212"></a> -<FONT color="green">213</FONT> * <p>Class loaders are supported only if the isLoaderSupported<a name="line.213"></a> -<FONT color="green">214</FONT> * method returns true. Otherwise the loader parameter is ignored.<a name="line.214"></a> -<FONT color="green">215</FONT> *<a name="line.215"></a> -<FONT color="green">216</FONT> * @param className the name of the class.<a name="line.216"></a> -<FONT color="green">217</FONT> * @param loader the class loader.<a name="line.217"></a> -<FONT color="green">218</FONT> * @param params an array containing the parameters of the constructor.<a name="line.218"></a> -<FONT color="green">219</FONT> * @param signature an array containing the signature of the constructor.<a name="line.219"></a> -<FONT color="green">220</FONT> * @return the instance.<a name="line.220"></a> -<FONT color="green">221</FONT> * @throws FactoryException if instantiation fails.<a name="line.221"></a> -<FONT color="green">222</FONT> */<a name="line.222"></a> -<FONT color="green">223</FONT> public Object getInstance(String className, ClassLoader loader, Object[] params, String[] signature)<a name="line.223"></a> -<FONT color="green">224</FONT> throws FactoryException<a name="line.224"></a> -<FONT color="green">225</FONT> {<a name="line.225"></a> -<FONT color="green">226</FONT> Factory factory = getFactory(className);<a name="line.226"></a> -<FONT color="green">227</FONT> if (factory == null)<a name="line.227"></a> -<FONT color="green">228</FONT> {<a name="line.228"></a> -<FONT color="green">229</FONT> if (loader != null)<a name="line.229"></a> -<FONT color="green">230</FONT> {<a name="line.230"></a> -<FONT color="green">231</FONT> Class clazz;<a name="line.231"></a> -<FONT color="green">232</FONT> try<a name="line.232"></a> -<FONT color="green">233</FONT> {<a name="line.233"></a> -<FONT color="green">234</FONT> clazz = loadClass(className, loader);<a name="line.234"></a> -<FONT color="green">235</FONT> }<a name="line.235"></a> -<FONT color="green">236</FONT> catch (ClassNotFoundException x)<a name="line.236"></a> -<FONT color="green">237</FONT> {<a name="line.237"></a> -<FONT color="green">238</FONT> throw new FactoryException("Instantiation failed for class " + className, x);<a name="line.238"></a> -<FONT color="green">239</FONT> }<a name="line.239"></a> -<FONT color="green">240</FONT> return getInstance(clazz, params, signature);<a name="line.240"></a> -<FONT color="green">241</FONT> }<a name="line.241"></a> -<FONT color="green">242</FONT> else<a name="line.242"></a> -<FONT color="green">243</FONT> {<a name="line.243"></a> -<FONT color="green">244</FONT> return getInstance(className, params, signature);<a name="line.244"></a> -<FONT color="green">245</FONT> }<a name="line.245"></a> -<FONT color="green">246</FONT> }<a name="line.246"></a> -<FONT color="green">247</FONT> else<a name="line.247"></a> -<FONT color="green">248</FONT> {<a name="line.248"></a> -<FONT color="green">249</FONT> return factory.getInstance(loader, params, signature);<a name="line.249"></a> -<FONT color="green">250</FONT> }<a name="line.250"></a> -<FONT color="green">251</FONT> }<a name="line.251"></a> -<FONT color="green">252</FONT> /**<a name="line.252"></a> -<FONT color="green">253</FONT> * Tests if specified class loaders are supported for a named class.<a name="line.253"></a> -<FONT color="green">254</FONT> *<a name="line.254"></a> -<FONT color="green">255</FONT> * @param className the name of the class.<a name="line.255"></a> -<FONT color="green">256</FONT> * @return true if class loaders are supported, false otherwise.<a name="line.256"></a> -<FONT color="green">257</FONT> * @throws FactoryException if test fails.<a name="line.257"></a> -<FONT color="green">258</FONT> */<a name="line.258"></a> -<FONT color="green">259</FONT> public boolean isLoaderSupported(String className) throws FactoryException<a name="line.259"></a> -<FONT color="green">260</FONT> {<a name="line.260"></a> -<FONT color="green">261</FONT> Factory factory = getFactory(className);<a name="line.261"></a> -<FONT color="green">262</FONT> return factory != null ? factory.isLoaderSupported() : true;<a name="line.262"></a> -<FONT color="green">263</FONT> }<a name="line.263"></a> -<FONT color="green">264</FONT> /**<a name="line.264"></a> -<FONT color="green">265</FONT> * Gets an instance of a specified class.<a name="line.265"></a> -<FONT color="green">266</FONT> *<a name="line.266"></a> -<FONT color="green">267</FONT> * @param clazz the class.<a name="line.267"></a> -<FONT color="green">268</FONT> * @return the instance.<a name="line.268"></a> -<FONT color="green">269</FONT> * @throws FactoryException if instantiation fails.<a name="line.269"></a> -<FONT color="green">270</FONT> */<a name="line.270"></a> -<FONT color="green">271</FONT> public Object getInstance(Class clazz) throws FactoryException<a name="line.271"></a> -<FONT color="green">272</FONT> {<a name="line.272"></a> -<FONT color="green">273</FONT> try<a name="line.273"></a> -<FONT color="green">274</FONT> {<a name="line.274"></a> -<FONT color="green">275</FONT> return clazz.newInstance();<a name="line.275"></a> -<FONT color="green">276</FONT> }<a name="line.276"></a> -<FONT color="green">277</FONT> catch (Exception x)<a name="line.277"></a> -<FONT color="green">278</FONT> {<a name="line.278"></a> -<FONT color="green">279</FONT> throw new FactoryException("Instantiation failed for " + clazz.getName(), x);<a name="line.279"></a> -<FONT color="green">280</FONT> }<a name="line.280"></a> -<FONT color="green">281</FONT> }<a name="line.281"></a> -<FONT color="green">282</FONT> /**<a name="line.282"></a> -<FONT color="green">283</FONT> * Gets an instance of a specified class.<a name="line.283"></a> -<FONT color="green">284</FONT> * Parameters for its constructor are given as an array of objects,<a name="line.284"></a> -<FONT color="green">285</FONT> * primitive types must be wrapped with a corresponding class.<a name="line.285"></a> -<FONT color="green">286</FONT> *<a name="line.286"></a> -<FONT color="green">287</FONT> * @param clazz the class.<a name="line.287"></a> -<FONT color="green">288</FONT> * @param params an array containing the parameters of the constructor.<a name="line.288"></a> -<FONT color="green">289</FONT> * @param signature an array containing the signature of the constructor.<a name="line.289"></a> -<FONT color="green">290</FONT> * @return the instance.<a name="line.290"></a> -<FONT color="green">291</FONT> * @throws FactoryException if instantiation fails.<a name="line.291"></a> -<FONT color="green">292</FONT> */<a name="line.292"></a> -<FONT color="green">293</FONT> protected Object getInstance(Class clazz, Object params[], String signature[]) throws FactoryException<a name="line.293"></a> -<FONT color="green">294</FONT> {<a name="line.294"></a> -<FONT color="green">295</FONT> /* Try to construct. */<a name="line.295"></a> -<FONT color="green">296</FONT> try<a name="line.296"></a> -<FONT color="green">297</FONT> {<a name="line.297"></a> -<FONT color="green">298</FONT> Class[] sign = getSignature(clazz, params, signature);<a name="line.298"></a> -<FONT color="green">299</FONT> return clazz.getConstructor(sign).newInstance(params);<a name="line.299"></a> -<FONT color="green">300</FONT> }<a name="line.300"></a> -<FONT color="green">301</FONT> catch (Exception x)<a name="line.301"></a> -<FONT color="green">302</FONT> {<a name="line.302"></a> -<FONT color="green">303</FONT> throw new FactoryException("Instantiation failed for " + clazz.getName(), x);<a name="line.303"></a> -<FONT color="green">304</FONT> }<a name="line.304"></a> -<FONT color="green">305</FONT> }<a name="line.305"></a> -<FONT color="green">306</FONT> /**<a name="line.306"></a> -<FONT color="green">307</FONT> * Gets the signature classes for parameters of a method of a class.<a name="line.307"></a> -<FONT color="green">308</FONT> *<a name="line.308"></a> -<FONT color="green">309</FONT> * @param clazz the class.<a name="line.309"></a> -<FONT color="green">310</FONT> * @param params an array containing the parameters of the method.<a name="line.310"></a> -<FONT color="green">311</FONT> * @param signature an array containing the signature of the method.<a name="line.311"></a> -<FONT color="green">312</FONT> * @return an array of signature classes. Note that in some cases<a name="line.312"></a> -<FONT color="green">313</FONT> * objects in the parameter array can be switched to the context<a name="line.313"></a> -<FONT color="green">314</FONT> * of a different class loader.<a name="line.314"></a> -<FONT color="green">315</FONT> * @throws ClassNotFoundException if any of the classes is not found.<a name="line.315"></a> -<FONT color="green">316</FONT> */<a name="line.316"></a> -<FONT color="green">317</FONT> public Class[] getSignature(Class clazz, Object params[], String signature[]) throws ClassNotFoundException<a name="line.317"></a> -<FONT color="green">318</FONT> {<a name="line.318"></a> -<FONT color="green">319</FONT> if (signature != null)<a name="line.319"></a> -<FONT color="green">320</FONT> {<a name="line.320"></a> -<FONT color="green">321</FONT> /* We have parameters. */<a name="line.321"></a> -<FONT color="green">322</FONT> ClassLoader tempLoader;<a name="line.322"></a> -<FONT color="green">323</FONT> ClassLoader loader = clazz.getClassLoader();<a name="line.323"></a> -<FONT color="green">324</FONT> Class[] sign = new Class[signature.length];<a name="line.324"></a> -<FONT color="green">325</FONT> for (int i = 0; i < signature.length; i++)<a name="line.325"></a> -<FONT color="green">326</FONT> {<a name="line.326"></a> -<FONT color="green">327</FONT> /* Check primitive types. */<a name="line.327"></a> -<FONT color="green">328</FONT> sign[i] = getPrimitiveClass(signature[i]);<a name="line.328"></a> -<FONT color="green">329</FONT> if (sign[i] == null)<a name="line.329"></a> -<FONT color="green">330</FONT> {<a name="line.330"></a> -<FONT color="green">331</FONT> /* Not a primitive one, continue building. */<a name="line.331"></a> -<FONT color="green">332</FONT> if (loader != null)<a name="line.332"></a> -<FONT color="green">333</FONT> {<a name="line.333"></a> -<FONT color="green">334</FONT> /* Use the class loader of the target object. */<a name="line.334"></a> -<FONT color="green">335</FONT> sign[i] = loader.loadClass(signature[i]);<a name="line.335"></a> -<FONT color="green">336</FONT> tempLoader = sign[i].getClassLoader();<a name="line.336"></a> -<FONT color="green">337</FONT> if ((params[i] != null)<a name="line.337"></a> -<FONT color="green">338</FONT> && (tempLoader != null)<a name="line.338"></a> -<FONT color="green">339</FONT> && !tempLoader.equals(params[i].getClass().getClassLoader()))<a name="line.339"></a> -<FONT color="green">340</FONT> {<a name="line.340"></a> -<FONT color="green">341</FONT> /*<a name="line.341"></a> -<FONT color="green">342</FONT> * The class uses a different class loader,<a name="line.342"></a> -<FONT color="green">343</FONT> * switch the parameter.<a name="line.343"></a> -<FONT color="green">344</FONT> */<a name="line.344"></a> -<FONT color="green">345</FONT> params[i] = switchObjectContext(params[i], loader);<a name="line.345"></a> -<FONT color="green">346</FONT> }<a name="line.346"></a> -<FONT color="green">347</FONT> }<a name="line.347"></a> -<FONT color="green">348</FONT> else<a name="line.348"></a> -<FONT color="green">349</FONT> {<a name="line.349"></a> -<FONT color="green">350</FONT> /* Use the default class loader. */<a name="line.350"></a> -<FONT color="green">351</FONT> sign[i] = loadClass(signature[i]);<a name="line.351"></a> -<FONT color="green">352</FONT> }<a name="line.352"></a> -<FONT color="green">353</FONT> }<a name="line.353"></a> -<FONT color="green">354</FONT> }<a name="line.354"></a> -<FONT color="green">355</FONT> return sign;<a name="line.355"></a> -<FONT color="green">356</FONT> }<a name="line.356"></a> -<FONT color="green">357</FONT> else<a name="line.357"></a> -<FONT color="green">358</FONT> {<a name="line.358"></a> -<FONT color="green">359</FONT> return null;<a name="line.359"></a> -<FONT color="green">360</FONT> }<a name="line.360"></a> -<FONT color="green">361</FONT> }<a name="line.361"></a> -<FONT color="green">362</FONT> /**<a name="line.362"></a> -<FONT color="green">363</FONT> * Switches an object into the context of a different class loader.<a name="line.363"></a> -<FONT color="green">364</FONT> *<a name="line.364"></a> -<FONT color="green">365</FONT> * @param object an object to switch.<a name="line.365"></a> -<FONT color="green">366</FONT> * @param loader the loader of the new context.<a name="line.366"></a> -<FONT color="green">367</FONT> */<a name="line.367"></a> -<FONT color="green">368</FONT> protected Object switchObjectContext(Object object, ClassLoader loader)<a name="line.368"></a> -<FONT color="green">369</FONT> {<a name="line.369"></a> -<FONT color="green">370</FONT> ByteArrayOutputStream bout = new ByteArrayOutputStream();<a name="line.370"></a> -<FONT color="green">371</FONT> try<a name="line.371"></a> -<FONT color="green">372</FONT> {<a name="line.372"></a> -<FONT color="green">373</FONT> ObjectOutputStream out = new ObjectOutputStream(bout);<a name="line.373"></a> -<FONT color="green">374</FONT> out.writeObject(object);<a name="line.374"></a> -<FONT color="green">375</FONT> out.flush();<a name="line.375"></a> -<FONT color="green">376</FONT> }<a name="line.376"></a> -<FONT color="green">377</FONT> catch (Exception x)<a name="line.377"></a> -<FONT color="green">378</FONT> {<a name="line.378"></a> -<FONT color="green">379</FONT> return object;<a name="line.379"></a> -<FONT color="green">380</FONT> }<a name="line.380"></a> -<FONT color="green">381</FONT> try<a name="line.381"></a> -<FONT color="green">382</FONT> {<a name="line.382"></a> -<FONT color="green">383</FONT> ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());<a name="line.383"></a> -<FONT color="green">384</FONT> ObjectInputStreamForContext in = new ObjectInputStreamForContext(bin, loader);<a name="line.384"></a> -<FONT color="green">385</FONT> return in.readObject();<a name="line.385"></a> -<FONT color="green">386</FONT> }<a name="line.386"></a> -<FONT color="green">387</FONT> catch (Exception x)<a name="line.387"></a> -<FONT color="green">388</FONT> {<a name="line.388"></a> -<FONT color="green">389</FONT> return object;<a name="line.389"></a> -<FONT color="green">390</FONT> }<a name="line.390"></a> -<FONT color="green">391</FONT> }<a name="line.391"></a> -<FONT color="green">392</FONT> /**<a name="line.392"></a> -<FONT color="green">393</FONT> * Loads the named class using the default class loader.<a name="line.393"></a> -<FONT color="green">394</FONT> *<a name="line.394"></a> -<FONT color="green">395</FONT> * @param className the name of the class to load.<a name="line.395"></a> -<FONT color="green">396</FONT> * @return the loaded class.<a name="line.396"></a> -<FONT color="green">397</FONT> * @throws ClassNotFoundException if the class was not found.<a name="line.397"></a> -<FONT color="green">398</FONT> */<a name="line.398"></a> -<FONT color="green">399</FONT> protected Class loadClass(String className) throws ClassNotFoundException<a name="line.399"></a> -<FONT color="green">400</FONT> {<a name="line.400"></a> -<FONT color="green">401</FONT> ClassLoader loader = this.getClass().getClassLoader();<a name="line.401"></a> -<FONT color="green">402</FONT> try<a name="line.402"></a> -<FONT color="green">403</FONT> {<a name="line.403"></a> -<FONT color="green">404</FONT> return loader != null ? loader.loadClass(className) : Class.forName(className);<a name="line.404"></a> -<FONT color="green">405</FONT> }<a name="line.405"></a> -<FONT color="green">406</FONT> catch (ClassNotFoundException x)<a name="line.406"></a> -<FONT color="green">407</FONT> {<a name="line.407"></a> -<FONT color="green">408</FONT> /* Go through additional loaders. */<a name="line.408"></a> -<FONT color="green">409</FONT> for (Iterator i = classLoaders.iterator(); i.hasNext();)<a name="line.409"></a> -<FONT color="green">410</FONT> {<a name="line.410"></a> -<FONT color="green">411</FONT> try<a name="line.411"></a> -<FONT color="green">412</FONT> {<a name="line.412"></a> -<FONT color="green">413</FONT> return ((ClassLoader) i.next()).loadClass(className);<a name="line.413"></a> -<FONT color="green">414</FONT> }<a name="line.414"></a> -<FONT color="green">415</FONT> catch (ClassNotFoundException xx)<a name="line.415"></a> -<FONT color="green">416</FONT> {<a name="line.416"></a> -<FONT color="green">417</FONT> // continue<a name="line.417"></a> -<FONT color="green">418</FONT> }<a name="line.418"></a> -<FONT color="green">419</FONT> }<a name="line.419"></a> -<FONT color="green">420</FONT> /* Give up. */<a name="line.420"></a> -<FONT color="green">421</FONT> throw x;<a name="line.421"></a> -<FONT color="green">422</FONT> }<a name="line.422"></a> -<FONT color="green">423</FONT> }<a name="line.423"></a> -<FONT color="green">424</FONT> /**<a name="line.424"></a> -<FONT color="green">425</FONT> * Loads the named class using a specified class loader.<a name="line.425"></a> -<FONT color="green">426</FONT> *<a name="line.426"></a> -<FONT color="green">427</FONT> * @param className the name of the class to load.<a name="line.427"></a> -<FONT color="green">428</FONT> * @param loader the loader to use.<a name="line.428"></a> -<FONT color="green">429</FONT> * @return the loaded class.<a name="line.429"></a> -<FONT color="green">430</FONT> * @throws ClassNotFoundException if the class was not found.<a name="line.430"></a> -<FONT color="green">431</FONT> */<a name="line.431"></a> -<FONT color="green">432</FONT> protected Class loadClass(String className, ClassLoader loader) throws ClassNotFoundException<a name="line.432"></a> -<FONT color="green">433</FONT> {<a name="line.433"></a> -<FONT color="green">434</FONT> return loader != null ? loader.loadClass(className) : loadClass(className);<a name="line.434"></a> -<FONT color="green">435</FONT> }<a name="line.435"></a> -<FONT color="green">436</FONT> /**<a name="line.436"></a> -<FONT color="green">437</FONT> * Gets a customized factory for a named class. If no class-specific<a name="line.437"></a> -<FONT color="green">438</FONT> * factory is specified but a default factory is, will use the default<a name="line.438"></a> -<FONT color="green">439</FONT> * factory.<a name="line.439"></a> -<FONT color="green">440</FONT> *<a name="line.440"></a> -<FONT color="green">441</FONT> * @param className the name of the class to load.<a name="line.441"></a> -<FONT color="green">442</FONT> * @return the factory, or null if not specified and no default.<a name="line.442"></a> -<FONT color="green">443</FONT> * @throws FactoryException if instantiation of the factory fails.<a name="line.443"></a> -<FONT color="green">444</FONT> */<a name="line.444"></a> -<FONT color="green">445</FONT> protected Factory getFactory(String className) throws FactoryException<a name="line.445"></a> -<FONT color="green">446</FONT> {<a name="line.446"></a> -<FONT color="green">447</FONT> HashMap factories = objectFactories;<a name="line.447"></a> -<FONT color="green">448</FONT> Object factory = factories.get(className);<a name="line.448"></a> -<FONT color="green">449</FONT> if (factory == null)<a name="line.449"></a> -<FONT color="green">450</FONT> {<a name="line.450"></a> -<FONT color="green">451</FONT> //No named factory for this; try the default, if one<a name="line.451"></a> -<FONT color="green">452</FONT> //exists.<a name="line.452"></a> -<FONT color="green">453</FONT> factory = factories.get(DEFAULT_FACTORY);<a name="line.453"></a> -<FONT color="green">454</FONT> }<a name="line.454"></a> -<FONT color="green">455</FONT> if (factory != null)<a name="line.455"></a> -<FONT color="green">456</FONT> {<a name="line.456"></a> -<FONT color="green">457</FONT> if (factory instanceof String)<a name="line.457"></a> -<FONT color="green">458</FONT> {<a name="line.458"></a> -<FONT color="green">459</FONT> /* Not yet instantiated... */<a name="line.459"></a> -<FONT color="green">460</FONT> try<a name="line.460"></a> -<FONT color="green">461</FONT> {<a name="line.461"></a> -<FONT color="green">462</FONT> factory = (Factory) getInstance((String) factory);<a name="line.462"></a> -<FONT color="green">463</FONT> ((Factory) factory).init(className);<a name="line.463"></a> -<FONT color="green">464</FONT> }<a name="line.464"></a> -<FONT color="green">465</FONT> catch (FactoryException x)<a name="line.465"></a> -<FONT color="green">466</FONT> {<a name="line.466"></a> -<FONT color="green">467</FONT> throw x;<a name="line.467"></a> -<FONT color="green">468</FONT> }<a name="line.468"></a> -<FONT color="green">469</FONT> catch (ClassCastException x)<a name="line.469"></a> -<FONT color="green">470</FONT> {<a name="line.470"></a> -<FONT color="green">471</FONT> throw new FactoryException("Incorrect factory " + (String) factory + " for class " + className, x);<a name="line.471"></a> -<FONT color="green">472</FONT> }<a name="line.472"></a> -<FONT color="green">473</FONT> factories = (HashMap) factories.clone();<a name="line.473"></a> -<FONT color="green">474</FONT> factories.put(className, factory);<a name="line.474"></a> -<FONT color="green">475</FONT> objectFactories = factories;<a name="line.475"></a> -<FONT color="green">476</FONT> }<a name="line.476"></a> -<FONT color="green">477</FONT> return (Factory) factory;<a name="line.477"></a> -<FONT color="green">478</FONT> }<a name="line.478"></a> -<FONT color="green">479</FONT> else<a name="line.479"></a> -<FONT color="green">480</FONT> {<a name="line.480"></a> -<FONT color="green">481</FONT> return null;<a name="line.481"></a> -<FONT color="green">482</FONT> }<a name="line.482"></a> -<FONT color="green">483</FONT> }<a name="line.483"></a> -<FONT color="green">484</FONT> // ---------------- Avalon Lifecycle Methods ---------------------<a name="line.484"></a> -<FONT color="green">485</FONT> /**<a name="line.485"></a> -<FONT color="green">486</FONT> * Avalon component lifecycle method<a name="line.486"></a> -<FONT color="green">487</FONT> */<a name="line.487"></a> -<FONT color="green">488</FONT> public void configure(Configuration conf) throws ConfigurationException<a name="line.488"></a> -<FONT color="green">489</FONT> {<a name="line.489"></a> -<FONT color="green">490</FONT> final Configuration[] loaders = conf.getChildren(CLASS_LOADER);<a name="line.490"></a> -<FONT color="green">491</FONT> if (loaders != null)<a name="line.491"></a> -<FONT color="green">492</FONT> {<a name="line.492"></a> -<FONT color="green">493</FONT> loaderNames = new String[loaders.length];<a name="line.493"></a> -<FONT color="green">494</FONT> for (int i = 0; i < loaders.length; i++)<a name="line.494"></a> -<FONT color="green">495</FONT> {<a name="line.495"></a> -<FONT color="green">496</FONT> loaderNames[i] = loaders[i].getValue();<a name="line.496"></a> -<FONT color="green">497</FONT> }<a name="line.497"></a> -<FONT color="green">498</FONT> }<a name="line.498"></a> -<FONT color="green">499</FONT> final Configuration factories = conf.getChild(OBJECT_FACTORY, false);<a name="line.499"></a> -<FONT color="green">500</FONT> if (factories != null)<a name="line.500"></a> -<FONT color="green">501</FONT> {<a name="line.501"></a> -<FONT color="green">502</FONT> Configuration[] nameVal = factories.getChildren();<a name="line.502"></a> -<FONT color="green">503</FONT> for (int i = 0; i < nameVal.length; i++)<a name="line.503"></a> -<FONT color="green">504</FONT> {<a name="line.504"></a> -<FONT color="green">505</FONT> String key = nameVal[i].getName();<a name="line.505"></a> -<FONT color="green">506</FONT> String factory = nameVal[i].getValue();<a name="line.506"></a> -<FONT color="green">507</FONT> // Store the factory to the table as a string and<a name="line.507"></a> -<FONT color="green">508</FONT> // instantiate it by using the service when needed.<a name="line.508"></a> -<FONT color="green">509</FONT> objectFactories.put(key, factory);<a name="line.509"></a> -<FONT color="green">510</FONT> }<a name="line.510"></a> -<FONT color="green">511</FONT> }<a name="line.511"></a> -<FONT color="green">512</FONT> }<a name="line.512"></a> -<FONT color="green">513</FONT> /**<a name="line.513"></a> -<FONT color="green">514</FONT> * Avalon component lifecycle method<a name="line.514"></a> -<FONT color="green">515</FONT> * Initializes the service by loading default class loaders<a name="line.515"></a> -<FONT color="green">516</FONT> * and customized object factories.<a name="line.516"></a> -<FONT color="green">517</FONT> *<a name="line.517"></a> -<FONT color="green">518</FONT> * @throws InitializationException if initialization fails.<a name="line.518"></a> -<FONT color="green">519</FONT> */<a name="line.519"></a> -<FONT color="green">520</FONT> public void initialize() throws Exception<a name="line.520"></a> -<FONT color="green">521</FONT> {<a name="line.521"></a> -<FONT color="green">522</FONT> if (loaderNames != null)<a name="line.522"></a> -<FONT color="green">523</FONT> {<a name="line.523"></a> -<FONT color="green">524</FONT> for (int i = 0; i < loaderNames.length; i++)<a name="line.524"></a> -<FONT color="green">525</FONT> {<a name="line.525"></a> -<FONT color="green">526</FONT> try<a name="line.526"></a> -<FONT color="green">527</FONT> {<a name="line.527"></a> -<FONT color="green">528</FONT> classLoaders.add(loadClass(loaderNames[i]).newInstance());<a name="line.528"></a> -<FONT color="green">529</FONT> }<a name="line.529"></a> -<FONT color="green">530</FONT> catch (Exception x)<a name="line.530"></a> -<FONT color="green">531</FONT> {<a name="line.531"></a> -<FONT color="green">532</FONT> throw new Exception(<a name="line.532"></a> -<FONT color="green">533</FONT> "No such class loader '" + loaderNames[i] + "' for DefaultFactoryService",<a name="line.533"></a> -<FONT color="green">534</FONT> x);<a name="line.534"></a> -<FONT color="green">535</FONT> }<a name="line.535"></a> -<FONT color="green">536</FONT> }<a name="line.536"></a> -<FONT color="green">537</FONT> loaderNames = null;<a name="line.537"></a> -<FONT color="green">538</FONT> }<a name="line.538"></a> -<FONT color="green">539</FONT> }<a name="line.539"></a> -<FONT color="green">540</FONT> }<a name="line.540"></a> +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="de"> +<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>package org.apache.fulcrum.factory;<a name="line.1"></a> +<span class="sourceLineNo">002</span><a name="line.2"></a> +<span class="sourceLineNo">003</span>/*<a name="line.3"></a> +<span class="sourceLineNo">004</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.4"></a> +<span class="sourceLineNo">005</span> * or more contributor license agreements. See the NOTICE file<a name="line.5"></a> +<span class="sourceLineNo">006</span> * distributed with this work for additional information<a name="line.6"></a> +<span class="sourceLineNo">007</span> * regarding copyright ownership. The ASF licenses this file<a name="line.7"></a> +<span class="sourceLineNo">008</span> * to you under the Apache License, Version 2.0 (the<a name="line.8"></a> +<span class="sourceLineNo">009</span> * "License"); you may not use this file except in compliance<a name="line.9"></a> +<span class="sourceLineNo">010</span> * with the License. You may obtain a copy of the License at<a name="line.10"></a> +<span class="sourceLineNo">011</span> *<a name="line.11"></a> +<span class="sourceLineNo">012</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.12"></a> +<span class="sourceLineNo">013</span> *<a name="line.13"></a> +<span class="sourceLineNo">014</span> * Unless required by applicable law or agreed to in writing,<a name="line.14"></a> +<span class="sourceLineNo">015</span> * software distributed under the License is distributed on an<a name="line.15"></a> +<span class="sourceLineNo">016</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.16"></a> +<span class="sourceLineNo">017</span> * KIND, either express or implied. See the License for the<a name="line.17"></a> +<span class="sourceLineNo">018</span> * specific language governing permissions and limitations<a name="line.18"></a> +<span class="sourceLineNo">019</span> * under the License.<a name="line.19"></a> +<span class="sourceLineNo">020</span> */<a name="line.20"></a> +<span class="sourceLineNo">021</span><a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.io.ByteArrayInputStream;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.io.ByteArrayOutputStream;<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.io.ObjectOutputStream;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.ArrayList;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.util.HashMap;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.28"></a> +<span class="sourceLineNo">029</span><a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.avalon.framework.activity.Disposable;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.avalon.framework.activity.Initializable;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.avalon.framework.configuration.Configurable;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.avalon.framework.configuration.Configuration;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.avalon.framework.configuration.ConfigurationException;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.avalon.framework.logger.AbstractLogEnabled;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.fulcrum.factory.utils.ObjectInputStreamForContext;<a name="line.36"></a> +<span class="sourceLineNo">037</span><a name="line.37"></a> +<span class="sourceLineNo">038</span>/**<a name="line.38"></a> +<span class="sourceLineNo">039</span> * The Factory Service instantiates objects using specified<a name="line.39"></a> +<span class="sourceLineNo">040</span> * class loaders. If none is specified, the default one<a name="line.40"></a> +<span class="sourceLineNo">041</span> * will be used.<a name="line.41"></a> +<span class="sourceLineNo">042</span> *<a name="line.42"></a> +<span class="sourceLineNo">043</span> * @author <a href="mailto:[email protected]">Eric Pugh</a><a name="line.43"></a> +<span class="sourceLineNo">044</span> * @author <a href="mailto:[email protected]">Ilkka Priha</a><a name="line.44"></a> +<span class="sourceLineNo">045</span> * @author <a href="mailto:[email protected]">Stephen McConnell</a><a name="line.45"></a> +<span class="sourceLineNo">046</span> * @version $Id: DefaultFactoryService.java 1771590 2016-11-27 13:36:13Z tv $<a name="line.46"></a> +<span class="sourceLineNo">047</span> *<a name="line.47"></a> +<span class="sourceLineNo">048</span> * @avalon.component name="factory" lifestyle="singleton"<a name="line.48"></a> +<span class="sourceLineNo">049</span> * @avalon.service type="org.apache.fulcrum.factory.FactoryService"<a name="line.49"></a> +<span class="sourceLineNo">050</span> */<a name="line.50"></a> +<span class="sourceLineNo">051</span>public class DefaultFactoryService<a name="line.51"></a> +<span class="sourceLineNo">052</span> extends AbstractLogEnabled<a name="line.52"></a> +<span class="sourceLineNo">053</span> implements FactoryService, Configurable, Initializable, Disposable<a name="line.53"></a> +<span class="sourceLineNo">054</span>{<a name="line.54"></a> +<span class="sourceLineNo">055</span> protected boolean initialized = false;<a name="line.55"></a> +<span class="sourceLineNo">056</span> //private boolean disposed = false;<a name="line.56"></a> +<span class="sourceLineNo">057</span> /**<a name="line.57"></a> +<span class="sourceLineNo">058</span> * The property specifying a set of additional class loaders.<a name="line.58"></a> +<span class="sourceLineNo">059</span> */<a name="line.59"></a> +<span class="sourceLineNo">060</span> private static final String CLASS_LOADER = "classloader";<a name="line.60"></a> +<span class="sourceLineNo">061</span> /**<a name="line.61"></a> +<span class="sourceLineNo">062</span> * The property prefix specifying additional object factories.<a name="line.62"></a> +<span class="sourceLineNo">063</span> */<a name="line.63"></a> +<span class="sourceLineNo">064</span> private static final String OBJECT_FACTORY = "object-factory";<a name="line.64"></a> +<span class="sourceLineNo">065</span> /**<a name="line.65"></a> +<span class="sourceLineNo">066</span> * The name of the default factory.<a name="line.66"></a> +<span class="sourceLineNo">067</span> */<a name="line.67"></a> +<span class="sourceLineNo">068</span> protected static final String DEFAULT_FACTORY = "default";<a name="line.68"></a> +<span class="sourceLineNo">069</span> /**<a name="line.69"></a> +<span class="sourceLineNo">070</span> * Primitive classes for reflection of constructors.<a name="line.70"></a> +<span class="sourceLineNo">071</span> */<a name="line.71"></a> +<span class="sourceLineNo">072</span> private static HashMap<String, Class<?>> primitiveClasses;<a name="line.72"></a> +<span class="sourceLineNo">073</span><a name="line.73"></a> +<span class="sourceLineNo">074</span> {<a name="line.74"></a> +<span class="sourceLineNo">075</span> primitiveClasses = new HashMap<String, Class<?>>(8);<a name="line.75"></a> +<span class="sourceLineNo">076</span> primitiveClasses.put(Boolean.TYPE.toString(), Boolean.TYPE);<a name="line.76"></a> +<span class="sourceLineNo">077</span> primitiveClasses.put(Character.TYPE.toString(), Character.TYPE);<a name="line.77"></a> +<span class="sourceLineNo">078</span> primitiveClasses.put(Byte.TYPE.toString(), Byte.TYPE);<a name="line.78"></a> +<span class="sourceLineNo">079</span> primitiveClasses.put(Short.TYPE.toString(), Short.TYPE);<a name="line.79"></a> +<span class="sourceLineNo">080</span> primitiveClasses.put(Integer.TYPE.toString(), Integer.TYPE);<a name="line.80"></a> +<span class="sourceLineNo">081</span> primitiveClasses.put(Long.TYPE.toString(), Long.TYPE);<a name="line.81"></a> +<span class="sourceLineNo">082</span> primitiveClasses.put(Float.TYPE.toString(), Float.TYPE);<a name="line.82"></a> +<span class="sourceLineNo">083</span> primitiveClasses.put(Double.TYPE.toString(), Double.TYPE);<a name="line.83"></a> +<span class="sourceLineNo">084</span> }<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> /**<a name="line.86"></a> +<span class="sourceLineNo">087</span> * temporary storage of class names between configure and initialize<a name="line.87"></a> +<span class="sourceLineNo">088</span> */<a name="line.88"></a> +<span class="sourceLineNo">089</span> private String[] loaderNames;<a name="line.89"></a> +<span class="sourceLineNo">090</span> /**<a name="line.90"></a> +<span class="sourceLineNo">091</span> * Additional class loaders.<a name="line.91"></a> +<span class="sourceLineNo">092</span> */<a name="line.92"></a> +<span class="sourceLineNo">093</span> private ArrayList<ClassLoader> classLoaders = new ArrayList<ClassLoader>();<a name="line.93"></a> +<span class="sourceLineNo">094</span> /**<a name="line.94"></a> +<span class="sourceLineNo">095</span> * Customized object factories.<a name="line.95"></a> +<span class="sourceLineNo">096</span> */<a name="line.96"></a> +<span class="sourceLineNo">097</span> private ConcurrentHashMap<String, Factory<?>> objectFactories =<a name="line.97"></a> +<span class="sourceLineNo">098</span> new ConcurrentHashMap<String, Factory<?>>();<a name="line.98"></a> +<span class="sourceLineNo">099</span> /**<a name="line.99"></a> +<span class="sourceLineNo">100</span> * Customized object factory classes.<a name="line.100"></a> +<span class="sourceLineNo">101</span> */<a name="line.101"></a> +<span class="sourceLineNo">102</span> private ConcurrentHashMap<String, String> objectFactoryClasses =<a name="line.102"></a> +<span class="sourceLineNo">103</span> new ConcurrentHashMap<String, String>();<a name="line.103"></a> +<span class="sourceLineNo">104</span><a name="line.104"></a> +<span class="sourceLineNo">105</span> /**<a name="line.105"></a> +<span class="sourceLineNo">106</span> * Gets the class of a primitive type.<a name="line.106"></a> +<span class="sourceLineNo">107</span> *<a name="line.107"></a> +<span class="sourceLineNo">108</span> * @param type a primitive type.<a name="line.108"></a> +<span class="sourceLineNo">109</span> * @return the corresponding class, or null.<a name="line.109"></a> +<span class="sourceLineNo">110</span> */<a name="line.110"></a> +<span class="sourceLineNo">111</span> protected static Class<?> getPrimitiveClass(String type)<a name="line.111"></a> +<span class="sourceLineNo">112</span> {<a name="line.112"></a> +<span class="sourceLineNo">113</span> return primitiveClasses.get(type);<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> /**<a name="line.116"></a> +<span class="sourceLineNo">117</span> * Gets an instance of a named class.<a name="line.117"></a> +<span class="sourceLineNo">118</span> *<a name="line.118"></a> +<span class="sourceLineNo">119</span> * @param className the name of the class.<a name="line.119"></a> +<span class="sourceLineNo">120</span> * @return the instance.<a name="line.120"></a> +<span class="sourceLineNo">121</span> * @throws FactoryException if instantiation fails.<a name="line.121"></a> +<span class="sourceLineNo">122</span> */<a name="line.122"></a> +<span class="sourceLineNo">123</span> @Override<a name="line.123"></a> +<span class="sourceLineNo">124</span> public <T> T getInstance(String className) throws FactoryException<a name="line.124"></a> +<span class="sourceLineNo">125</span> {<a name="line.125"></a> +<span class="sourceLineNo">126</span> if (className == null)<a name="line.126"></a> +<span class="sourceLineNo">127</span> {<a name="line.127"></a> +<span class="sourceLineNo">128</span> throw new FactoryException("Missing String className");<a name="line.128"></a> +<span class="sourceLineNo">129</span> }<a name="line.129"></a> +<span class="sourceLineNo">130</span> Factory<T> factory = getFactory(className);<a name="line.130"></a> +<span class="sourceLineNo">131</span> if (factory == null)<a name="line.131"></a> +<span class="sourceLineNo">132</span> {<a name="line.132"></a> +<span class="sourceLineNo">133</span> Class<T> clazz;<a name="line.133"></a> +<span class="sourceLineNo">134</span> try<a name="line.134"></a> +<span class="sourceLineNo">135</span> {<a name="line.135"></a> +<span class="sourceLineNo">136</span> clazz = loadClass(className);<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span> catch (ClassNotFoundException x)<a name="line.138"></a> +<span class="sourceLineNo">139</span> {<a name="line.139"></a> +<span class="sourceLineNo">140</span> throw new FactoryException("Instantiation failed for class " + className, x);<a name="line.140"></a> +<span class="sourceLineNo">141</span> }<a name="line.141"></a> +<span class="sourceLineNo">142</span> return getInstance(clazz);<a name="line.142"></a> +<span class="sourceLineNo">143</span> }<a name="line.143"></a> +<span class="sourceLineNo">144</span> else<a name="line.144"></a> +<span class="sourceLineNo">145</span> {<a name="line.145"></a> +<span class="sourceLineNo">146</span> return factory.getInstance();<a name="line.146"></a> +<span class="sourceLineNo">147</span> }<a name="line.147"></a> +<span class="sourceLineNo">148</span> }<a name="line.148"></a> +<span class="sourceLineNo">149</span> /**<a name="line.149"></a> +<span class="sourceLineNo">150</span> * Gets an instance of a named class using a specified class loader.<a name="line.150"></a> +<span class="sourceLineNo">151</span> *<a name="line.151"></a> +<span class="sourceLineNo">152</span> * <p>Class loaders are supported only if the isLoaderSupported<a name="line.152"></a> +<span class="sourceLineNo">153</span> * method returns true. Otherwise the loader parameter is ignored.<a name="line.153"></a> +<span class="sourceLineNo">154</span> *<a name="line.154"></a> +<span class="sourceLineNo">155</span> * @param className the name of the class.<a name="line.155"></a> +<span class="sourceLineNo">156</span> * @param loader the class loader.<a name="line.156"></a> +<span class="sourceLineNo">157</span> * @return the instance.<a name="line.157"></a> +<span class="sourceLineNo">158</span> * @throws FactoryException if instantiation fails.<a name="line.158"></a> +<span class="sourceLineNo">159</span> */<a name="line.159"></a> +<span class="sourceLineNo">160</span> @Override<a name="line.160"></a> +<span class="sourceLineNo">161</span> public <T> T getInstance(String className, ClassLoader loader) throws FactoryException<a name="line.161"></a> +<span class="sourceLineNo">162</span> {<a name="line.162"></a> +<span class="sourceLineNo">163</span> Factory<T> factory = getFactory(className);<a name="line.163"></a> +<span class="sourceLineNo">164</span> if (factory == null)<a name="line.164"></a> +<span class="sourceLineNo">165</span> {<a name="line.165"></a> +<span class="sourceLineNo">166</span> if (loader != null)<a name="line.166"></a> +<span class="sourceLineNo">167</span> {<a name="line.167"></a> +<span class="sourceLineNo">168</span> Class<T> clazz;<a name="line.168"></a> +<span class="sourceLineNo">169</span> try<a name="line.169"></a> +<span class="sourceLineNo">170</span> {<a name="line.170"></a> +<span class="sourceLineNo">171</span> clazz = loadClass(className, loader);<a name="line.171"></a> +<span class="sourceLineNo">172</span> }<a name="line.172"></a> +<span class="sourceLineNo">173</span> catch (ClassNotFoundException x)<a name="line.173"></a> +<span class="sourceLineNo">174</span> {<a name="line.174"></a> +<span class="sourceLineNo">175</span> throw new FactoryException("Instantiation failed for class " + className, x);<a name="line.175"></a> +<span class="sourceLineNo">176</span> }<a 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i < signature.length; i++)<a name="line.343"></a> +<span class="sourceLineNo">344</span> {<a name="line.344"></a> +<span class="sourceLineNo">345</span> /* Check primitive types. */<a name="line.345"></a> +<span class="sourceLineNo">346</span> sign[i] = getPrimitiveClass(signature[i]);<a name="line.346"></a> +<span class="sourceLineNo">347</span> if (sign[i] == null)<a name="line.347"></a> +<span class="sourceLineNo">348</span> {<a name="line.348"></a> +<span class="sourceLineNo">349</span> /* Not a primitive one, continue building. */<a name="line.349"></a> +<span class="sourceLineNo">350</span> if (loader != null)<a name="line.350"></a> +<span class="sourceLineNo">351</span> {<a name="line.351"></a> +<span class="sourceLineNo">352</span> /* Use the class loader of the target object. */<a name="line.352"></a> +<span class="sourceLineNo">353</span> sign[i] = loader.loadClass(signature[i]);<a name="line.353"></a> +<span class="sourceLineNo">354</span> tempLoader = sign[i].getClassLoader();<a name="line.354"></a> +<span class="sourceLineNo">355</span> if ((params[i] != null)<a name="line.355"></a> +<span class="sourceLineNo">356</span> && (tempLoader != null)<a name="line.356"></a> +<span class="sourceLineNo">357</span> && !tempLoader.equals(params[i].getClass().getClassLoader()))<a name="line.357"></a> +<span class="sourceLineNo">358</span> {<a name="line.358"></a> +<span class="sourceLineNo">359</span> /*<a name="line.359"></a> +<span class="sourceLineNo">360</span> * The class uses a different class loader,<a name="line.360"></a> +<span class="sourceLineNo">361</span> * switch the parameter.<a name="line.361"></a> +<span class="sourceLineNo">362</span> */<a name="line.362"></a> +<span class="sourceLineNo">363</span> params[i] = switchObjectContext(params[i], loader);<a name="line.363"></a> +<span class="sourceLineNo">364</span> }<a name="line.364"></a> +<span class="sourceLineNo">365</span> }<a name="line.365"></a> +<span class="sourceLineNo">366</span> else<a name="line.366"></a> +<span class="sourceLineNo">367</span> {<a name="line.367"></a> +<span class="sourceLineNo">368</span> /* Use the default class loader. */<a name="line.368"></a> +<span class="sourceLineNo">369</span> sign[i] = loadClass(signature[i]);<a name="line.369"></a> +<span class="sourceLineNo">370</span> }<a name="line.370"></a> +<span class="sourceLineNo">371</span> }<a name="line.371"></a> +<span class="sourceLineNo">372</span> }<a name="line.372"></a> +<span class="sourceLineNo">373</span> return sign;<a name="line.373"></a> +<span class="sourceLineNo">374</span> }<a name="line.374"></a> +<span class="sourceLineNo">375</span> else<a name="line.375"></a> +<span class="sourceLineNo">376</span> {<a name="line.376"></a> +<span class="sourceLineNo">377</span> return null;<a name="line.377"></a> +<span class="sourceLineNo">378</span> }<a name="line.378"></a> +<span class="sourceLineNo">379</span> }<a name="line.379"></a> +<span class="sourceLineNo">380</span> /**<a name="line.380"></a> +<span class="sourceLineNo">381</span> * Switches an object into the context of a different class loader.<a name="line.381"></a> +<span class="sourceLineNo">382</span> *<a name="line.382"></a> +<span class="sourceLineNo">383</span> * @param object an object to switch.<a name="line.383"></a> +<span class="sourceLineNo">384</span> * @param loader the loader of the new context.<a name="line.384"></a> +<span class="sourceLineNo">385</span> */<a name="line.385"></a> +<span class="sourceLineNo">386</span> protected Object switchObjectContext(Object object, ClassLoader loader)<a name="line.386"></a> +<span class="sourceLineNo">387</span> {<a name="line.387"></a> +<span class="sourceLineNo">388</span> ByteArrayOutputStream bout = new ByteArrayOutputStream();<a name="line.388"></a> +<span class="sourceLineNo">389</span><a name="line.389"></a> +<span class="sourceLineNo">390</span> try<a name="line.390"></a> +<span class="sourceLineNo">391</span> {<a name="line.391"></a> +<span class="sourceLineNo">392</span> ObjectOutputStream out = new ObjectOutputStream(bout);<a name="line.392"></a> +<span class="sourceLineNo">393</span> out.writeObject(object);<a name="line.393"></a> +<span class="sourceLineNo">394</span> out.flush();<a name="line.394"></a> +<span class="sourceLineNo">395</span> }<a name="line.395"></a> +<span class="sourceLineNo">396</span> catch (IOException x)<a name="line.396"></a> +<span class="sourceLineNo">397</span> {<a name="line.397"></a> +<span class="sourceLineNo">398</span> return object;<a name="line.398"></a> +<span class="sourceLineNo">399</span> }<a name="line.399"></a> +<span class="sourceLineNo">400</span><a name="line.400"></a> +<span class="sourceLineNo">401</span> ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());<a name="line.401"></a> +<span class="sourceLineNo">402</span> ObjectInputStreamForContext in = null;<a name="line.402"></a>
[... 229 lines stripped ...]
