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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.linker;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static java.lang.String.format;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.felix.ipojo.*;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.felix.ipojo.extender.ExtensionDeclaration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.felix.ipojo.extender.InstanceDeclaration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.felix.ipojo.extender.TypeDeclaration;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.felix.ipojo.extender.builder.FactoryBuilderException;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.felix.ipojo.extender.internal.Lifecycle;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.felix.ipojo.extender.internal.ReferenceableCallable;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.felix.ipojo.extender.queue.QueueService;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.osgi.framework.Bundle;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.osgi.framework.BundleContext;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.osgi.framework.InvalidSyntaxException;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.osgi.framework.ServiceReference;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.osgi.util.tracker.ServiceTracker;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.osgi.util.tracker.ServiceTrackerCustomizer;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import java.util.concurrent.ExecutionException;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import java.util.concurrent.Future;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>/**<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * This class is responsible to create the factory for a given type declaration. It also instructs the factories to<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * create<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * the instance for each instance declaration targeting the managed factory.<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>public class ManagedType implements FactoryStateListener, Lifecycle {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> /**<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * The bundle context<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> */<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private final BundleContext m_bundleContext;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> /**<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * The queue service used for the creation.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private final QueueService m_queueService;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> /**<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * The type declaration that we have to handle.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> */<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> private final TypeDeclaration m_declaration;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> /**<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * The service tracker tracking {@link ExtensionDeclaration} services.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> */<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private ServiceTracker m_extensionTracker;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> /**<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * The service tracker tracking the {@link InstanceDeclaration} services.<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> */<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private ServiceTracker m_instanceTracker;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> /**<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * The job used to instantiate the factory.<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> */<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private Future<IPojoFactory> m_future;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> /**<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * If the Managed Type cannot be initializes, sets this flag to true and no links will be created.<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> */<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private boolean m_frozen;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> /**<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * Constructs a Managed Type object for the given type declaration.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> *<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @param bundleContext the bundle context<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * @param queueService the queue service<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * @param declaration the declaration<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> */<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> public ManagedType(BundleContext bundleContext, QueueService queueService, TypeDeclaration declaration) {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> m_bundleContext = bundleContext;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> m_queueService = queueService;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> m_declaration = declaration;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> try {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> initExtensionTracker();<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> initInstanceTracker();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> } catch (InvalidSyntaxException e) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> // Error during filter creation, freeze the declaration and add a meaningful message<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> m_frozen = true;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> m_declaration.unbind("Filter creation error", e);<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 name="line.101"></a> |
| <span class="sourceLineNo">102</span> * Initializes the extension declaration tracker.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> *<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * @throws InvalidSyntaxException cannot happen<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> */<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> private void initExtensionTracker() throws InvalidSyntaxException {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> String filter = format(<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> "(&(objectclass=%s)(%s=%s))",<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> ExtensionDeclaration.class.getName(),<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> ExtensionDeclaration.EXTENSION_NAME_PROPERTY,<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> m_declaration.getExtension()<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> );<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> m_extensionTracker = new ServiceTracker(m_bundleContext, m_bundleContext.createFilter(filter), new ExtensionSupport());<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> * Initializes the instance declaration tracker.<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> *<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @throws InvalidSyntaxException cannot happen<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> */<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> private void initInstanceTracker() throws InvalidSyntaxException {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> String filter;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> String version = m_declaration.getComponentVersion();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> if (version != null) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // Track instance for:<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // * this component AND<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // * this component's version OR no version<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> filter = format(<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> "(&(objectClass=%s)(%s=%s)(|(%s=%s)(!(%s=*))))",<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> InstanceDeclaration.class.getName(),<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> InstanceDeclaration.COMPONENT_NAME_PROPERTY,<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> m_declaration.getComponentName(),<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> InstanceDeclaration.COMPONENT_VERSION_PROPERTY,<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> version,<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> InstanceDeclaration.COMPONENT_VERSION_PROPERTY<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> );<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> } else {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // Track instance for:<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> // * this component AND no version<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> filter = format(<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> "(&(objectClass=%s)(%s=%s)(!(%s=*)))",<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> InstanceDeclaration.class.getName(),<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> InstanceDeclaration.COMPONENT_NAME_PROPERTY,<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> m_declaration.getComponentName(),<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> InstanceDeclaration.COMPONENT_VERSION_PROPERTY<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> m_instanceTracker = new ServiceTracker(m_bundleContext, m_bundleContext.createFilter(filter), new InstanceSupport());<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> * Starting the management.<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> * We open only the extension tracker.<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> */<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> public void start() {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> if (!m_frozen) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> m_extensionTracker.open(true);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> /**<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * Stopping the management.<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> */<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> public void stop() {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> m_instanceTracker.close();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> m_extensionTracker.close();<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> /**<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> * The factory we have built has a state in his change.<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> *<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> * @param factory the changing factory<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> * @param newState the new factory state<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> */<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> public void stateChanged(Factory factory, int newState) {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> if (Factory.VALID == newState) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> // Start tracking instances<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> m_instanceTracker.open(true);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> } else {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> // Un-track all instances<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> m_instanceTracker.close();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> /**<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> * The service tracker customizer for extension declaration.<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * It submits a factory building job when an extension matching our type declaration is found.<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> */<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> private class ExtensionSupport implements ServiceTrackerCustomizer {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> public Object addingService(ServiceReference reference) {<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> final Object service = m_bundleContext.getService(reference);<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> if (service instanceof ExtensionDeclaration) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> m_future = m_queueService.submit(new ReferenceableCallable<IPojoFactory>(reference.getBundle()) {<a name="line.194"></a> |
| <span class="sourceLineNo">195</span><a name="line.195"></a> |
| <span class="sourceLineNo">196</span> /**<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> * The factory creation job.<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> * @return the IPojoFactory<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> * @throws Exception the factory cannot be created<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> */<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> public IPojoFactory call() throws Exception {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> ExtensionDeclaration declaration = (ExtensionDeclaration) service;<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> try {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> // Build and start the factory instance<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> IPojoFactory factory = declaration.getFactoryBuilder().build(m_bundleContext, m_declaration.getComponentMetadata());<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> factory.addFactoryStateListener(ManagedType.this);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> factory.start();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> // Change the status<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> m_declaration.bind();<a name="line.210"></a> |
| <span class="sourceLineNo">211</span><a name="line.211"></a> |
| <span class="sourceLineNo">212</span> return factory;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> } catch (FactoryBuilderException e) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> m_declaration.unbind(format("Cannot build '%s' factory instance", m_declaration.getExtension()), e);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> } catch (Throwable t) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> m_declaration.unbind(format("Error during '%s' factory instance creation", m_declaration.getExtension()), t);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span><a name="line.218"></a> |
| <span class="sourceLineNo">219</span> return null;<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> }<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> });<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> // Return something, otherwise, ServiceTracker think that we're not interested<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // in this service and never call us back on disposal.<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> return service;<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> return null;<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span><a name="line.229"></a> |
| <span class="sourceLineNo">230</span> public void modifiedService(ServiceReference reference, Object o) {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> }<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> public void removedService(ServiceReference reference, Object o) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span><a name="line.234"></a> |
| <span class="sourceLineNo">235</span> ExtensionDeclaration extensionDeclaration = (ExtensionDeclaration) o;<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // Then stop the factory<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> try {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> IPojoFactory factory = m_future.get();<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> // It is possible that the factory couldn't be created<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> if (factory != null) {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> factory.removeFactoryStateListener(ManagedType.this);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> factory.dispose();<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> m_declaration.unbind(format("Extension '%s' is missing",<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> extensionDeclaration.getExtensionName()));<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> } catch (InterruptedException e) {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> m_declaration.unbind("Could not create Factory", e);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> } catch (ExecutionException e) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> m_declaration.unbind("Factory creation throw an Exception", e);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> m_future = null;<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> private class InstanceSupport implements ServiceTrackerCustomizer {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> public Object addingService(final ServiceReference reference) {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> Object service = m_bundleContext.getService(reference);<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> if (service instanceof InstanceDeclaration) {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> final InstanceDeclaration instanceDeclaration = (InstanceDeclaration) service;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> // Check that instance is not already bound<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> if (instanceDeclaration.getStatus().isBound()) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> return null;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span><a name="line.265"></a> |
| <span class="sourceLineNo">266</span> // Handle visibility (private/public factories)<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> if (!m_declaration.isPublic()) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> if (!reference.getBundle().equals(m_bundleContext.getBundle())) {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> Bundle origin = m_bundleContext.getBundle();<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> instanceDeclaration.unbind(<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> format("Component '%s/%s' is private. It only accept instances " +<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> "from bundle %s/%s [%d] (instance bundle origin: %d)",<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> m_declaration.getComponentName(),<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> m_declaration.getComponentVersion(),<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> origin.getSymbolicName(),<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> origin.getVersion(),<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> origin.getBundleId(),<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> reference.getBundle().getBundleId())<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> );<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return null;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> }<a name="line.282"></a> |
| <span class="sourceLineNo">283</span><a name="line.283"></a> |
| <span class="sourceLineNo">284</span> return m_queueService.submit(new ReferenceableCallable<ComponentInstance>(reference.getBundle()) {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> public ComponentInstance call() throws Exception {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> try {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> // Create the component's instance<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> // It is automatically started<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> // Future.get should never be null since this tracker is started when the factory has been created<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> ComponentInstance instance = m_future.get().createComponentInstance(instanceDeclaration.getConfiguration());<a name="line.290"></a> |
| <span class="sourceLineNo">291</span><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> // Notify the declaration that everything is fine<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> instanceDeclaration.bind();<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> return instance;<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> } catch (UnacceptableConfiguration c) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> instanceDeclaration.unbind(format("Instance configuration is invalid (component:%s/%s, bundle:%d)",<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> m_declaration.getComponentName(),<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> m_declaration.getComponentVersion(),<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> reference.getBundle().getBundleId()),<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> c);<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> } catch (MissingHandlerException e) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> instanceDeclaration.unbind(<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> format(<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> "Component '%s/%s' (required for instance creation) is missing some handlers",<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> m_declaration.getComponentName(),<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> m_declaration.getComponentVersion()<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> ),<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> e);<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> } catch (ConfigurationException e) {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> instanceDeclaration.unbind(<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> format(<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> "Instance configuration is incorrect for component '%s/%s'",<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> m_declaration.getComponentName(),<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> m_declaration.getComponentVersion()),<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> e);<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> }<a name="line.317"></a> |
| <span class="sourceLineNo">318</span><a name="line.318"></a> |
| <span class="sourceLineNo">319</span> return null;<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> });<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> }<a name="line.322"></a> |
| <span class="sourceLineNo">323</span><a name="line.323"></a> |
| <span class="sourceLineNo">324</span> return null;<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> public void modifiedService(ServiceReference reference, Object o) {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<a name="line.328"></a> |
| <span class="sourceLineNo">329</span><a name="line.329"></a> |
| <span class="sourceLineNo">330</span> public void removedService(ServiceReference reference, Object o) {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> InstanceDeclaration instanceDeclaration = (InstanceDeclaration) m_bundleContext.getService(reference);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> Future<ComponentInstance> future = (Future<ComponentInstance>) o;<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> ComponentInstance instance;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> try {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> instance = future.get();<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> // It is possible that the instance couldn't be created<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> if (instance != null) {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> String message = format("Factory for Component '%s/%s' is missing",<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> instance.getFactory().getName(),<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> m_declaration.getComponentVersion());<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> instanceDeclaration.unbind(message);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span><a name="line.342"></a> |
| <span class="sourceLineNo">343</span> instance.stop();<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> instance.dispose();<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span><a name="line.346"></a> |
| <span class="sourceLineNo">347</span> } catch (InterruptedException e) {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> instanceDeclaration.unbind("Could not create ComponentInstance", e);<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> } catch (ExecutionException e) {<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> instanceDeclaration.unbind("ComponentInstance creation throw an Exception", e);<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> }<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> }<a name="line.353"></a> |
| <span class="sourceLineNo">354</span><a name="line.354"></a> |
| <span class="sourceLineNo">355</span><a name="line.355"></a> |
| <span class="sourceLineNo">356</span>}<a name="line.356"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
