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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,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>package org.apache.felix.ipojo.extender.internal.processor;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.felix.ipojo.configuration.Instance;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.felix.ipojo.extender.internal.BundleProcessor;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.felix.ipojo.extender.internal.Extender;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.felix.ipojo.extender.internal.declaration.DefaultInstanceDeclaration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.felix.ipojo.extender.internal.declaration.DefaultTypeDeclaration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.felix.ipojo.util.InvocationResult;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.felix.ipojo.util.Log;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.objectweb.asm.ClassReader;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.osgi.framework.Bundle;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.osgi.framework.BundleContext;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.osgi.framework.Constants;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.osgi.framework.wiring.BundleWiring;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.io.Closeable;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.io.IOException;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import java.io.InputStream;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import java.lang.reflect.Field;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import java.lang.reflect.Method;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import java.net.URL;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import java.util.*;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import static org.apache.felix.ipojo.util.Reflection.fields;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import static org.apache.felix.ipojo.util.Reflection.methods;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import static org.apache.felix.ipojo.util.StreamUtils.closeQuietly;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span>/**<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * Processor looking for classes annotated with @Configuration and creating the corresponding instance declaration.<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> */<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class ConfigurationProcessor implements BundleProcessor {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> /**<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * The logger.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private final Log m_logger;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> /**<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * Registry storing the bundle to components and instances declared within this bundle.<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * Only instances are expected.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> */<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private final Map<Bundle, ComponentsAndInstances> m_registry = new HashMap<Bundle, ComponentsAndInstances>();<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> /**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * Set to false to disable this processor.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * When an OSGi framework does not provide the wiring API, this processor is disabled.<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private final boolean m_enabled;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * Creates the configuration processor.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> *<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @param logger the logger.<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public ConfigurationProcessor(Log logger) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> m_logger = logger;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> // org.osgi.framework.wiring may not be available, in this case, disable us.<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> try {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> this.getClass().getClassLoader().loadClass("org.osgi.framework.wiring.BundleWiring");<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> } catch (ClassNotFoundException e) {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> m_logger.log(Log.ERROR, "The org.osgi.framework.wiring.BundleWiring class is not provided by the " +<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> "framework, configuration processor disabled.");<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> m_enabled = false;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> return;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> // Check ok.<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> m_enabled = true;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> }<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> public static String getClassNameFromResource(String resource) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> String res = resource;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> if (resource.startsWith("/")) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> res = resource.substring(1); // Remove the first /<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> res = res.substring(0, res.length() - ".class".length()); // Remove the .class<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> return res.replace("/", ".");<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> /**<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * A bundle is starting.<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> *<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * @param bundle the bundle<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> */<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> public void activate(Bundle bundle) {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> if (! m_enabled && Extender.getIPOJOBundleContext().getBundle().getBundleId() == bundle.getBundleId()) {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> // Fast return if the configuration tracking is disabled, or if we are iPOJO<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> return;<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> // It's not required to process bundle not importing the configuration package.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> final String imports = bundle.getHeaders().get(Constants.IMPORT_PACKAGE);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (imports == null || ! imports.contains("org.apache.felix.ipojo.configuration")) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> // TODO Check dynamic imports to verify if the package is not imported lazily.<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> return;<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> BundleWiring wiring = bundle.adapt(BundleWiring.class);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (wiring == null) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> // Invalid state.<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> m_logger.log(Log.ERROR, "The bundle " + bundle.getBundleId() + " (" + bundle.getSymbolicName() + ") " +<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> "cannot be adapted to BundleWiring, state: " + bundle.getState());<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return;<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> // Only lookup for local classes, parent classes will be analyzed on demand.<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> Collection<String> resources = wiring.listResources("/", "*.class",<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> BundleWiring.FINDENTRIES_RECURSE + BundleWiring.LISTRESOURCES_LOCAL);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (resources == null) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> m_logger.log(Log.ERROR, "The bundle " + bundle.getBundleId() + " (" + bundle.getSymbolicName() + ") " +<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> " does not have any classes to be analyzed");<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> return;<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> m_logger.log(Log.DEBUG, resources.size() + " classes found");<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> handleResources(bundle, resources, wiring.getClassLoader());<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> /**<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * A bundle is stopping.<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> *<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> * @param bundle the bundle<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> */<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> public void deactivate(Bundle bundle) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> if (! m_enabled) { return; }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> ComponentsAndInstances cai = m_registry.remove(bundle);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> if (cai != null) {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> cai.stop();<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<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> |
| <span class="sourceLineNo">153</span> * {@inheritDoc BundleProcessor#start}<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> */<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> public void start() {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // Nothing to do<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span><a name="line.158"></a> |
| <span class="sourceLineNo">159</span> /**<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> * {@inheritDoc BundleProcessor#stop}<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * <p/><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * This method cleans up all created factories and instances.<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> */<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> public void stop() {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // Ignored, for a simple ordered shutdown, use ReverseBundleProcessor<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> private void handleResources(Bundle bundle, Collection<String> resources, ClassLoader classLoader) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> for (String resource : resources) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> handleResource(bundle, resource, classLoader);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> private void handleResource(Bundle bundle, String resource, ClassLoader classLoader) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> URL url = classLoader.getResource(resource);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> if (url == null) {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> m_logger.log(Log.ERROR, "The resource " + resource + " cannot be loaded by " + bundle.getBundleId() + " " +<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> "(" + bundle.getSymbolicName() + ")");<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> return;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span><a name="line.181"></a> |
| <span class="sourceLineNo">182</span> try {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> if (hasConfigurationAnnotation(bundle, url, classLoader)) {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> instantiateAndDeclareInstances(bundle, resource, classLoader);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> } catch (IOException e) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> m_logger.log(Log.ERROR, "The resource " + resource + " cannot be loaded by " + bundle.getBundleId() + " " +<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> "(" + bundle.getSymbolicName() + ")", e);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> private void instantiateAndDeclareInstances(Bundle bundle, String resource, ClassLoader classLoader) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> String classname = getClassNameFromResource(resource);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> List<Instance> instances = new ArrayList<Instance>();<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> try {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> Class clazz = classLoader.loadClass(classname);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> Object configuration = clazz.newInstance();<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> // Collect fields<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> Map<Field, Instance> fields =<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> fields().ofType(Instance.class).in(configuration).map();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> for (Map.Entry<Field, Instance> entry : fields.entrySet()) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> Instance instance = entry.getValue();<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> instance.nameIfUnnamed(entry.getKey().getName());<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> instances.add(instance);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> // Collect methods with Bundle Context as argument<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> Map<Method, InvocationResult<Instance>> methods =<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> methods().in(configuration).ofReturnType(Instance.class).withParameter(BundleContext.class)<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> .map(bundle.getBundleContext());<a name="line.212"></a> |
| <span class="sourceLineNo">213</span><a name="line.213"></a> |
| <span class="sourceLineNo">214</span> // Collect methods without arguments<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> methods.putAll(methods().in(configuration).ofReturnType(Instance.class).map());<a name="line.215"></a> |
| <span class="sourceLineNo">216</span><a name="line.216"></a> |
| <span class="sourceLineNo">217</span> for (Map.Entry<Method, InvocationResult<Instance>> entry : methods.entrySet()) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> Instance instance = entry.getValue().get();<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> if (instance == null) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> m_logger.log(Log.ERROR, "The Instance declaration creation failed because the method " + entry<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> .getKey().getName() + " of class " + entry.getKey().getDeclaringClass() + " threw an " +<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> "exception", entry.getValue().error());<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> } else {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> instance.nameIfUnnamed(entry.getKey().getName());<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> instances.add(instance);<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span><a name="line.228"></a> |
| <span class="sourceLineNo">229</span> } catch (ClassNotFoundException e) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> m_logger.log(Log.ERROR, "Cannot load class " + classname + " despite it was considered as a " +<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> "configuration", e);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> return;<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> } catch (InstantiationException e) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> m_logger.log(Log.ERROR, "Cannot instantiate class " + classname + " despite it was considered as a " +<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> "configuration", e);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> return;<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> } catch (IllegalAccessException e) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> m_logger.log(Log.ERROR, "Cannot instantiate class " + classname + " despite it was considered as a " +<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> "configuration", e);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> return;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> m_logger.log(Log.WARNING, instances.size() + " instances found in class " + classname);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> //Build and enqueue declaration<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> for (Instance instance : instances) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> DefaultInstanceDeclaration declaration = new DefaultInstanceDeclaration(bundle.getBundleContext(),<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> instance.factory(), instance.configuration());<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> declaration.start();<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> getComponentsAndInstances(bundle).m_instances.add(declaration);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> private boolean hasConfigurationAnnotation(Bundle bundle, URL url, ClassLoader classLoader) throws IOException {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> InputStream is = url.openStream();<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> try {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> // Exclude inner classes and classes containing $<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> if (url.toExternalForm().contains("$")) {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> return false;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> }<a name="line.260"></a> |
| <span class="sourceLineNo">261</span><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> ClassReader reader = new ClassReader(is);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> ConfigurationAnnotationScanner scanner = new ConfigurationAnnotationScanner();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> reader.accept(scanner, 0);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span><a name="line.265"></a> |
| <span class="sourceLineNo">266</span> // Only class with the @Configuration are considered, parent classes are not analyzed.<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // Indeed, we have to detect when the parent must be considered independently,<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // or when only the daughter needs too (to avoid creating the instances twice).<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> return scanner.isConfiguration();<a name="line.270"></a> |
| <span class="sourceLineNo">271</span><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> // The following code would traverse the whole class hierarchy.<a name="line.272"></a> |
| <span class="sourceLineNo">273</span>// if (scanner.isConfiguration()) {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span>// return true;<a name="line.274"></a> |
| <span class="sourceLineNo">275</span>// } else if (scanner.getParent() != null) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span>// URL parentUrl = classLoader.getResource("/" + scanner.getParent().replace(".", "/") + ".class");<a name="line.276"></a> |
| <span class="sourceLineNo">277</span>// if (parentUrl == null) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span>// m_logger.log(Log.DEBUG, "Cannot load the parent class " + scanner.getParent() + " - stopping " +<a name="line.278"></a> |
| <span class="sourceLineNo">279</span>// "scan");<a name="line.279"></a> |
| <span class="sourceLineNo">280</span>// return false;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span>// }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span>// return hasConfigurationAnnotation(bundle, parentUrl, classLoader);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span>// }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> } finally {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> closeQuietly(is);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> }<a name="line.287"></a> |
| <span class="sourceLineNo">288</span><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> /**<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * Gets the {@link ComponentsAndInstances} declared by the given bundle.<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> *<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> * @param bundle the bundle<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> * @return the set of component and instances declared by the bundle, <code>null</code> otherwise<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> */<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> private ComponentsAndInstances getComponentsAndInstances(Bundle bundle) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> ComponentsAndInstances cai = m_registry.get(bundle);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (cai == null) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> cai = new ComponentsAndInstances();<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> m_registry.put(bundle, cai);<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> return cai;<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> }<a name="line.302"></a> |
| <span class="sourceLineNo">303</span><a name="line.303"></a> |
| <span class="sourceLineNo">304</span> /**<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * Container storing the components and instances declared by a bundle.<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * This class is not intended to be used outside from the current processor.<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> */<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> private static class ComponentsAndInstances {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> List<DefaultTypeDeclaration> m_types = new ArrayList<DefaultTypeDeclaration>();<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> List<DefaultInstanceDeclaration> m_instances = new ArrayList<DefaultInstanceDeclaration>();<a name="line.310"></a> |
| <span class="sourceLineNo">311</span><a name="line.311"></a> |
| <span class="sourceLineNo">312</span> /**<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * Stops all declarations.<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> */<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> void stop() {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> for (DefaultInstanceDeclaration instance : m_instances) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> instance.stop();<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> }<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> for (DefaultTypeDeclaration declaration : m_types) {<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> declaration.stop();<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> }<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> m_instances.clear();<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> m_types.clear();<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span><a name="line.326"></a> |
| <span class="sourceLineNo">327</span><a name="line.327"></a> |
| <span class="sourceLineNo">328</span>}<a name="line.328"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
