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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>package org.apache.felix.ipojo.handlers.dependency;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.*;<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.apache.felix.ipojo.*;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.felix.ipojo.architecture.HandlerDescription;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.felix.ipojo.metadata.Element;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.felix.ipojo.parser.FieldMetadata;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.felix.ipojo.parser.MethodMetadata;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.felix.ipojo.parser.PojoMetadata;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.felix.ipojo.util.*;<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.Filter;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.osgi.framework.InvalidSyntaxException;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.osgi.framework.ServiceReference;<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span>/**<a name="line.36"></a>
<span class="sourceLineNo">037</span> * The dependency handler manages a list of service dependencies.<a name="line.37"></a>
<span class="sourceLineNo">038</span> * @author &lt;a href="mailto:dev@felix.apache.org"&gt;Felix Project Team&lt;/a&gt;<a name="line.38"></a>
<span class="sourceLineNo">039</span> */<a name="line.39"></a>
<span class="sourceLineNo">040</span>public class DependencyHandler extends PrimitiveHandler implements DependencyStateListener {<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> * Proxy settings property.<a name="line.43"></a>
<span class="sourceLineNo">044</span> */<a name="line.44"></a>
<span class="sourceLineNo">045</span> public static final String PROXY_SETTINGS_PROPERTY = "ipojo.proxy";<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> * Proxy type property.<a name="line.48"></a>
<span class="sourceLineNo">049</span> */<a name="line.49"></a>
<span class="sourceLineNo">050</span> public static final String PROXY_TYPE_PROPERTY = "ipojo.proxy.type";<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> * Proxy type value: smart.<a name="line.53"></a>
<span class="sourceLineNo">054</span> */<a name="line.54"></a>
<span class="sourceLineNo">055</span> public static final String SMART_PROXY = "smart";<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> * Proxy type value: dynamic-proxy.<a name="line.58"></a>
<span class="sourceLineNo">059</span> */<a name="line.59"></a>
<span class="sourceLineNo">060</span> public static final String DYNAMIC_PROXY = "dynamic-proxy";<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span> /**<a name="line.62"></a>
<span class="sourceLineNo">063</span> * Proxy settings value: enabled.<a name="line.63"></a>
<span class="sourceLineNo">064</span> */<a name="line.64"></a>
<span class="sourceLineNo">065</span> public static final String PROXY_ENABLED = "enabled";<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span> /**<a name="line.67"></a>
<span class="sourceLineNo">068</span> * Proxy settings value: disabled.<a name="line.68"></a>
<span class="sourceLineNo">069</span> */<a name="line.69"></a>
<span class="sourceLineNo">070</span> public static final String PROXY_DISABLED = "disabled";<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span> /**<a name="line.72"></a>
<span class="sourceLineNo">073</span> * Dependency field type : Vector<a name="line.73"></a>
<span class="sourceLineNo">074</span> * The dependency will be injected as a vector.<a name="line.74"></a>
<span class="sourceLineNo">075</span> */<a name="line.75"></a>
<span class="sourceLineNo">076</span> protected static final int VECTOR = 2;<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span> /**<a name="line.78"></a>
<span class="sourceLineNo">079</span> * Dependency Field Type : List.<a name="line.79"></a>
<span class="sourceLineNo">080</span> * The dependency will be injected as a list.<a name="line.80"></a>
<span class="sourceLineNo">081</span> */<a name="line.81"></a>
<span class="sourceLineNo">082</span> protected static final int LIST = 1;<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span> /**<a name="line.84"></a>
<span class="sourceLineNo">085</span> * Dependency Field Type : Set.<a name="line.85"></a>
<span class="sourceLineNo">086</span> * The dependency will be injected as a set.<a name="line.86"></a>
<span class="sourceLineNo">087</span> */<a name="line.87"></a>
<span class="sourceLineNo">088</span> protected static final int SET = 3;<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> * List of dependencies of the component.<a name="line.91"></a>
<span class="sourceLineNo">092</span> */<a name="line.92"></a>
<span class="sourceLineNo">093</span> private final List&lt;Dependency&gt; m_dependencies = new ArrayList&lt;Dependency&gt;();<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span> /**<a name="line.95"></a>
<span class="sourceLineNo">096</span> * Is the handler started.<a name="line.96"></a>
<span class="sourceLineNo">097</span> */<a name="line.97"></a>
<span class="sourceLineNo">098</span> private boolean m_started;<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> * The handler description.<a name="line.101"></a>
<span class="sourceLineNo">102</span> */<a name="line.102"></a>
<span class="sourceLineNo">103</span> private DependencyHandlerDescription m_description;<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> * The instance configuration context source, updated once reconfiguration.<a name="line.106"></a>
<span class="sourceLineNo">107</span> */<a name="line.107"></a>
<span class="sourceLineNo">108</span> private InstanceConfigurationSource m_instanceConfigurationSource;<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> * Get the list of managed dependency.<a name="line.111"></a>
<span class="sourceLineNo">112</span> * @return the dependency list<a name="line.112"></a>
<span class="sourceLineNo">113</span> */<a name="line.113"></a>
<span class="sourceLineNo">114</span> public Dependency[] getDependencies() {<a name="line.114"></a>
<span class="sourceLineNo">115</span> return m_dependencies.toArray(new Dependency[m_dependencies.size()]);<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> /**<a name="line.118"></a>
<span class="sourceLineNo">119</span> * Validate method. This method is invoked by an AbstractServiceDependency when this dependency becomes RESOLVED.<a name="line.119"></a>
<span class="sourceLineNo">120</span> * @param dep : the dependency becoming RESOLVED.<a name="line.120"></a>
<span class="sourceLineNo">121</span> * @see org.apache.felix.ipojo.util.DependencyStateListener#validate(org.apache.felix.ipojo.util.DependencyModel)<a name="line.121"></a>
<span class="sourceLineNo">122</span> */<a name="line.122"></a>
<span class="sourceLineNo">123</span> public void validate(DependencyModel dep) {<a name="line.123"></a>
<span class="sourceLineNo">124</span> checkContext();<a name="line.124"></a>
<span class="sourceLineNo">125</span> }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span> /**<a name="line.127"></a>
<span class="sourceLineNo">128</span> * Invalidate method. This method is invoked by an AbstractServiceDependency when this dependency becomes UNRESOLVED or BROKEN.<a name="line.128"></a>
<span class="sourceLineNo">129</span> * @param dep : the dependency becoming UNRESOLVED or BROKEN.<a name="line.129"></a>
<span class="sourceLineNo">130</span> * @see org.apache.felix.ipojo.util.DependencyStateListener#invalidate(org.apache.felix.ipojo.util.DependencyModel)<a name="line.130"></a>
<span class="sourceLineNo">131</span> */<a name="line.131"></a>
<span class="sourceLineNo">132</span> public void invalidate(DependencyModel dep) {<a name="line.132"></a>
<span class="sourceLineNo">133</span> setValidity(false);<a name="line.133"></a>
<span class="sourceLineNo">134</span> }<a name="line.134"></a>
<span class="sourceLineNo">135</span><a name="line.135"></a>
<span class="sourceLineNo">136</span> /**<a name="line.136"></a>
<span class="sourceLineNo">137</span> * Check the validity of the dependencies.<a name="line.137"></a>
<span class="sourceLineNo">138</span> */<a name="line.138"></a>
<span class="sourceLineNo">139</span> protected void checkContext() {<a name="line.139"></a>
<span class="sourceLineNo">140</span> if (!m_started) {<a name="line.140"></a>
<span class="sourceLineNo">141</span> return;<a name="line.141"></a>
<span class="sourceLineNo">142</span> }<a name="line.142"></a>
<span class="sourceLineNo">143</span> synchronized (m_dependencies) {<a name="line.143"></a>
<span class="sourceLineNo">144</span> // Store the initial state<a name="line.144"></a>
<span class="sourceLineNo">145</span> boolean initialState = getValidity();<a name="line.145"></a>
<span class="sourceLineNo">146</span><a name="line.146"></a>
<span class="sourceLineNo">147</span> boolean valid = true;<a name="line.147"></a>
<span class="sourceLineNo">148</span> for (Dependency dep : m_dependencies) {<a name="line.148"></a>
<span class="sourceLineNo">149</span> if (dep.getState() != Dependency.RESOLVED) {<a name="line.149"></a>
<span class="sourceLineNo">150</span> valid = false;<a name="line.150"></a>
<span class="sourceLineNo">151</span> break;<a name="line.151"></a>
<span class="sourceLineNo">152</span> }<a name="line.152"></a>
<span class="sourceLineNo">153</span> }<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span> // Check the component dependencies<a name="line.155"></a>
<span class="sourceLineNo">156</span> if (valid) {<a name="line.156"></a>
<span class="sourceLineNo">157</span> // The dependencies are valid<a name="line.157"></a>
<span class="sourceLineNo">158</span> if (!initialState) {<a name="line.158"></a>
<span class="sourceLineNo">159</span> // There is a state change<a name="line.159"></a>
<span class="sourceLineNo">160</span> setValidity(true);<a name="line.160"></a>
<span class="sourceLineNo">161</span> }<a name="line.161"></a>
<span class="sourceLineNo">162</span> // Else do nothing, the component state stay VALID<a name="line.162"></a>
<span class="sourceLineNo">163</span> } else {<a name="line.163"></a>
<span class="sourceLineNo">164</span> // The dependencies are not valid<a name="line.164"></a>
<span class="sourceLineNo">165</span> if (initialState) {<a name="line.165"></a>
<span class="sourceLineNo">166</span> // There is a state change<a name="line.166"></a>
<span class="sourceLineNo">167</span> setValidity(false);<a name="line.167"></a>
<span class="sourceLineNo">168</span> }<a name="line.168"></a>
<span class="sourceLineNo">169</span> // Else do nothing, the component state stay UNRESOLVED<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<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><a name="line.174"></a>
<span class="sourceLineNo">175</span> /**<a name="line.175"></a>
<span class="sourceLineNo">176</span> * Check if the dependency given is valid in the sense that metadata are consistent.<a name="line.176"></a>
<span class="sourceLineNo">177</span> * @param dep : the dependency to check<a name="line.177"></a>
<span class="sourceLineNo">178</span> * @param manipulation : the component-type manipulation metadata<a name="line.178"></a>
<span class="sourceLineNo">179</span> * @return true if the dependency is valid<a name="line.179"></a>
<span class="sourceLineNo">180</span> * @throws ConfigurationException : the checked dependency is not correct<a name="line.180"></a>
<span class="sourceLineNo">181</span> */<a name="line.181"></a>
<span class="sourceLineNo">182</span> private boolean checkDependency(Dependency dep, PojoMetadata manipulation) throws ConfigurationException {<a name="line.182"></a>
<span class="sourceLineNo">183</span> // Check the internal type of dependency<a name="line.183"></a>
<span class="sourceLineNo">184</span> String field = dep.getField();<a name="line.184"></a>
<span class="sourceLineNo">185</span> DependencyCallback[] callbacks = dep.getCallbacks();<a name="line.185"></a>
<span class="sourceLineNo">186</span> int index = dep.getConstructorParameterIndex();<a name="line.186"></a>
<span class="sourceLineNo">187</span><a name="line.187"></a>
<span class="sourceLineNo">188</span> if (callbacks == null &amp;&amp; field == null &amp;&amp; index == -1) {<a name="line.188"></a>
<span class="sourceLineNo">189</span> throw new ConfigurationException("A service requirement requires at least binding methods, " +<a name="line.189"></a>
<span class="sourceLineNo">190</span> "a field or a constructor parameter");<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> for (int i = 0; callbacks != null &amp;&amp; i &lt; callbacks.length; i++) {<a name="line.193"></a>
<span class="sourceLineNo">194</span> MethodMetadata[] mets = manipulation.getMethods(callbacks[i].getMethodName());<a name="line.194"></a>
<span class="sourceLineNo">195</span> if (mets.length == 0) {<a name="line.195"></a>
<span class="sourceLineNo">196</span> debug("A requirement callback " + callbacks[i].getMethodName() + " does not exist in the implementation class, will try the super classes");<a name="line.196"></a>
<span class="sourceLineNo">197</span> } else {<a name="line.197"></a>
<span class="sourceLineNo">198</span> if (mets[0].getMethodArguments().length &gt; 2) {<a name="line.198"></a>
<span class="sourceLineNo">199</span> throw new ConfigurationException("Requirement Callback : A requirement callback "<a name="line.199"></a>
<span class="sourceLineNo">200</span> + callbacks[i].getMethodName()<a name="line.200"></a>
<span class="sourceLineNo">201</span> + " must have 0, 1 or 2 arguments");<a name="line.201"></a>
<span class="sourceLineNo">202</span> }<a name="line.202"></a>
<span class="sourceLineNo">203</span><a name="line.203"></a>
<span class="sourceLineNo">204</span> callbacks[i].setArgument(mets[0].getMethodArguments());<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span> if (mets[0].getMethodArguments().length == 1) {<a name="line.206"></a>
<span class="sourceLineNo">207</span> if (!mets[0].getMethodArguments()[0].equals(ServiceReference.class.getName())) {<a name="line.207"></a>
<span class="sourceLineNo">208</span> // The callback receives the service object.<a name="line.208"></a>
<span class="sourceLineNo">209</span> setSpecification(dep, mets[0].getMethodArguments()[0], false); // Just warn if a mismatch is discovered.<a name="line.209"></a>
<span class="sourceLineNo">210</span> }<a name="line.210"></a>
<span class="sourceLineNo">211</span> } else if (mets[0].getMethodArguments().length == 2) {<a name="line.211"></a>
<span class="sourceLineNo">212</span> // The callback receives service object, service reference. Check that the second argument is a service reference<a name="line.212"></a>
<span class="sourceLineNo">213</span> if (!(mets[0].getMethodArguments()[1].equals(ServiceReference.class.getName()) // callback with (service object, service reference)<a name="line.213"></a>
<span class="sourceLineNo">214</span> || mets[0].getMethodArguments()[1].equals(Dictionary.class.getName()) // callback with (service object, service properties in a dictionary)<a name="line.214"></a>
<span class="sourceLineNo">215</span> || mets[0].getMethodArguments()[1].equals(Map.class.getName()))) { // callback with (service object, service properties in a map)<a name="line.215"></a>
<span class="sourceLineNo">216</span> String message =<a name="line.216"></a>
<span class="sourceLineNo">217</span> "The requirement callback " + callbacks[i].getMethodName() + " must have a ServiceReference, a Dictionary or a Map as the second argument";<a name="line.217"></a>
<span class="sourceLineNo">218</span> throw new ConfigurationException(message);<a name="line.218"></a>
<span class="sourceLineNo">219</span> }<a name="line.219"></a>
<span class="sourceLineNo">220</span> setSpecification(dep, mets[0].getMethodArguments()[0], false); // Just warn if a mismatch is discovered.<a name="line.220"></a>
<span class="sourceLineNo">221</span> }<a name="line.221"></a>
<span class="sourceLineNo">222</span> }<a name="line.222"></a>
<span class="sourceLineNo">223</span><a name="line.223"></a>
<span class="sourceLineNo">224</span> }<a name="line.224"></a>
<span class="sourceLineNo">225</span><a name="line.225"></a>
<span class="sourceLineNo">226</span> if (field != null) {<a name="line.226"></a>
<span class="sourceLineNo">227</span> FieldMetadata meta = manipulation.getField(field);<a name="line.227"></a>
<span class="sourceLineNo">228</span> if (meta == null) {<a name="line.228"></a>
<span class="sourceLineNo">229</span> throw new ConfigurationException("Requirement Callback : A requirement field "<a name="line.229"></a>
<span class="sourceLineNo">230</span> + field<a name="line.230"></a>
<span class="sourceLineNo">231</span> + " does not exist in the implementation class");<a name="line.231"></a>
<span class="sourceLineNo">232</span> }<a name="line.232"></a>
<span class="sourceLineNo">233</span> String type = meta.getFieldType();<a name="line.233"></a>
<span class="sourceLineNo">234</span> if (type.endsWith("[]")) {<a name="line.234"></a>
<span class="sourceLineNo">235</span> if (dep.isProxy()) {<a name="line.235"></a>
<span class="sourceLineNo">236</span> info("Arrays cannot be used for proxied dependencies - Disabling the proxy mode");<a name="line.236"></a>
<span class="sourceLineNo">237</span> dep.setProxy(false);<a name="line.237"></a>
<span class="sourceLineNo">238</span> }<a name="line.238"></a>
<span class="sourceLineNo">239</span> // Set the dependency to multiple<a name="line.239"></a>
<span class="sourceLineNo">240</span> dep.setAggregate(true);<a name="line.240"></a>
<span class="sourceLineNo">241</span> type = type.substring(0, type.length() - 2);<a name="line.241"></a>
<span class="sourceLineNo">242</span> } else if (type.equals(List.class.getName()) || type.equals(Collection.class.getName())) {<a name="line.242"></a>
<span class="sourceLineNo">243</span> dep.setType(LIST);<a name="line.243"></a>
<span class="sourceLineNo">244</span> type = null;<a name="line.244"></a>
<span class="sourceLineNo">245</span> } else if (type.equals(Vector.class.getName())) {<a name="line.245"></a>
<span class="sourceLineNo">246</span> dep.setType(VECTOR);<a name="line.246"></a>
<span class="sourceLineNo">247</span> if (dep.isProxy()) {<a name="line.247"></a>
<span class="sourceLineNo">248</span> warn("Vectors cannot be used for proxied dependencies - Disabling the proxy mode");<a name="line.248"></a>
<span class="sourceLineNo">249</span> dep.setProxy(false);<a name="line.249"></a>
<span class="sourceLineNo">250</span> }<a name="line.250"></a>
<span class="sourceLineNo">251</span> type = null;<a name="line.251"></a>
<span class="sourceLineNo">252</span> } else if (type.equals(Set.class.getName())) {<a name="line.252"></a>
<span class="sourceLineNo">253</span> dep.setType(SET);<a name="line.253"></a>
<span class="sourceLineNo">254</span> type = null;<a name="line.254"></a>
<span class="sourceLineNo">255</span> } else {<a name="line.255"></a>
<span class="sourceLineNo">256</span> if (dep.isAggregate()) {<a name="line.256"></a>
<span class="sourceLineNo">257</span> throw new ConfigurationException("A required service is not correct : the field "<a name="line.257"></a>
<span class="sourceLineNo">258</span> + meta.getFieldName()<a name="line.258"></a>
<span class="sourceLineNo">259</span> + " must be an array to support aggregate injections");<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> setSpecification(dep, type, true); // Throws an exception if the field type mismatch.<a name="line.262"></a>
<span class="sourceLineNo">263</span> }<a name="line.263"></a>
<span class="sourceLineNo">264</span><a name="line.264"></a>
<span class="sourceLineNo">265</span> // Constructor parameter<a name="line.265"></a>
<span class="sourceLineNo">266</span> if (index != -1) {<a name="line.266"></a>
<span class="sourceLineNo">267</span> if (! dep.isProxy()) {<a name="line.267"></a>
<span class="sourceLineNo">268</span> throw new ConfigurationException("Services injected into constructor must be proxied");<a name="line.268"></a>
<span class="sourceLineNo">269</span> }<a name="line.269"></a>
<span class="sourceLineNo">270</span><a name="line.270"></a>
<span class="sourceLineNo">271</span> MethodMetadata[] cts = manipulation.getConstructors();<a name="line.271"></a>
<span class="sourceLineNo">272</span> // If we don't have a type, try to get the first constructor and get the type of the parameter<a name="line.272"></a>
<span class="sourceLineNo">273</span> // we the index 'index'.<a name="line.273"></a>
<span class="sourceLineNo">274</span> if (cts.length &gt; 0 &amp;&amp; cts[0].getMethodArguments().length &gt; index) {<a name="line.274"></a>
<span class="sourceLineNo">275</span> String type = cts[0].getMethodArguments()[index];<a name="line.275"></a>
<span class="sourceLineNo">276</span> if (type.endsWith("[]")) {<a name="line.276"></a>
<span class="sourceLineNo">277</span> throw new ConfigurationException("Services injected into constructor cannot be arrays");<a name="line.277"></a>
<span class="sourceLineNo">278</span> } else if (type.equals(List.class.getName()) || type.equals(Collection.class.getName())) {<a name="line.278"></a>
<span class="sourceLineNo">279</span> dep.setType(LIST);<a name="line.279"></a>
<span class="sourceLineNo">280</span> type = null;<a name="line.280"></a>
<span class="sourceLineNo">281</span> } else if (type.equals(Vector.class.getName())) {<a name="line.281"></a>
<span class="sourceLineNo">282</span> throw new ConfigurationException("Services injected into constructor cannot be Vectors");<a name="line.282"></a>
<span class="sourceLineNo">283</span> } else if (type.equals(Set.class.getName())) {<a name="line.283"></a>
<span class="sourceLineNo">284</span> dep.setType(SET);<a name="line.284"></a>
<span class="sourceLineNo">285</span> type = null;<a name="line.285"></a>
<span class="sourceLineNo">286</span> } else {<a name="line.286"></a>
<span class="sourceLineNo">287</span> if (dep.isAggregate()) {<a name="line.287"></a>
<span class="sourceLineNo">288</span> throw new ConfigurationException("A required service is not correct : the constructor parameter "<a name="line.288"></a>
<span class="sourceLineNo">289</span> + index<a name="line.289"></a>
<span class="sourceLineNo">290</span> + " must be an aggregate type to support aggregate injections");<a name="line.290"></a>
<span class="sourceLineNo">291</span> }<a name="line.291"></a>
<span class="sourceLineNo">292</span> }<a name="line.292"></a>
<span class="sourceLineNo">293</span> setSpecification(dep, type, true); // Throws an exception if the field type mismatch.<a name="line.293"></a>
<span class="sourceLineNo">294</span> } else {<a name="line.294"></a>
<span class="sourceLineNo">295</span> throw new ConfigurationException("Cannot determine the specification of the dependency " + index +<a name="line.295"></a>
<span class="sourceLineNo">296</span> ", please use the specification attribute");<a name="line.296"></a>
<span class="sourceLineNo">297</span> }<a name="line.297"></a>
<span class="sourceLineNo">298</span> }<a name="line.298"></a>
<span class="sourceLineNo">299</span><a name="line.299"></a>
<span class="sourceLineNo">300</span> // At this point we must have discovered the specification, it it's null, throw a ConfiguraitonException<a name="line.300"></a>
<span class="sourceLineNo">301</span> if (dep.getSpecification() == null) {<a name="line.301"></a>
<span class="sourceLineNo">302</span> String id = dep.getId();<a name="line.302"></a>
<span class="sourceLineNo">303</span> if (id == null) {<a name="line.303"></a>
<span class="sourceLineNo">304</span> dep.getField();<a name="line.304"></a>
<span class="sourceLineNo">305</span> }<a name="line.305"></a>
<span class="sourceLineNo">306</span> if (id == null &amp;&amp; dep.getCallbacks() != null &amp;&amp; dep.getCallbacks().length &gt; 0) {<a name="line.306"></a>
<span class="sourceLineNo">307</span> id = dep.getCallbacks()[0].getMethodName();<a name="line.307"></a>
<span class="sourceLineNo">308</span> }<a name="line.308"></a>
<span class="sourceLineNo">309</span> throw new ConfigurationException("Cannot determine the targeted service specification for the dependency '" +<a name="line.309"></a>
<span class="sourceLineNo">310</span> id + "'");<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> // Disable proxy on scalar dependency targeting non-interface specification<a name="line.313"></a>
<span class="sourceLineNo">314</span> if (! dep.isAggregate() &amp;&amp; dep.isProxy()) {<a name="line.314"></a>
<span class="sourceLineNo">315</span> if (! dep.getSpecification().isInterface()) {<a name="line.315"></a>
<span class="sourceLineNo">316</span> warn("Proxies cannot be used on service dependency targeting non interface " +<a name="line.316"></a>
<span class="sourceLineNo">317</span> "service specification " + dep.getSpecification().getName());<a name="line.317"></a>
<span class="sourceLineNo">318</span> dep.setProxy(false);<a name="line.318"></a>
<span class="sourceLineNo">319</span> }<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> // Disables proxy on null (nullable=false)<a name="line.322"></a>
<span class="sourceLineNo">323</span>// if (dep.isProxy() &amp;&amp; dep.isOptional() &amp;&amp; ! dep.supportsNullable()) {<a name="line.323"></a>
<span class="sourceLineNo">324</span>// dep.setProxy(false);<a name="line.324"></a>
<span class="sourceLineNo">325</span>// warn("Optional Null Dependencies do not support proxying - Disable the proxy mode");<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> // Check that all required info are set<a name="line.328"></a>
<span class="sourceLineNo">329</span> return dep.getSpecification() != null;<a name="line.329"></a>
<span class="sourceLineNo">330</span> }<a name="line.330"></a>
<span class="sourceLineNo">331</span><a name="line.331"></a>
<span class="sourceLineNo">332</span> /**<a name="line.332"></a>
<span class="sourceLineNo">333</span> * Check if we have to set the dependency specification with the given class name.<a name="line.333"></a>
<span class="sourceLineNo">334</span> * @param dep : dependency to check<a name="line.334"></a>
<span class="sourceLineNo">335</span> * @param className : class name<a name="line.335"></a>
<span class="sourceLineNo">336</span> * @param error : set to true to throw an error if the set dependency specification and the given specification are different.<a name="line.336"></a>
<span class="sourceLineNo">337</span> * @throws ConfigurationException : the specification class cannot be loaded correctly<a name="line.337"></a>
<span class="sourceLineNo">338</span> */<a name="line.338"></a>
<span class="sourceLineNo">339</span> private void setSpecification(Dependency dep, String className, boolean error) throws ConfigurationException {<a name="line.339"></a>
<span class="sourceLineNo">340</span> if (className == null) {<a name="line.340"></a>
<span class="sourceLineNo">341</span> // No found type (list and vector)<a name="line.341"></a>
<span class="sourceLineNo">342</span> if (dep.getSpecification() == null) {<a name="line.342"></a>
<span class="sourceLineNo">343</span> if (error) {<a name="line.343"></a>
<span class="sourceLineNo">344</span> String id = dep.getId();<a name="line.344"></a>
<span class="sourceLineNo">345</span> if (id == null) {<a name="line.345"></a>
<span class="sourceLineNo">346</span> id = dep.getField();<a name="line.346"></a>
<span class="sourceLineNo">347</span> if (id == null) {<a name="line.347"></a>
<span class="sourceLineNo">348</span> id = Integer.toString(dep.getConstructorParameterIndex());<a name="line.348"></a>
<span class="sourceLineNo">349</span> }<a name="line.349"></a>
<span class="sourceLineNo">350</span> }<a name="line.350"></a>
<span class="sourceLineNo">351</span> throw new ConfigurationException("Cannot discover the required specification for " + id);<a name="line.351"></a>
<span class="sourceLineNo">352</span> } else {<a name="line.352"></a>
<span class="sourceLineNo">353</span> // If the specification is different, warn that we will override it.<a name="line.353"></a>
<span class="sourceLineNo">354</span> info("Cannot discover the required specification for " + dep.getField());<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>
<span class="sourceLineNo">357</span> } else { // In all other case, className is not null.<a name="line.357"></a>
<span class="sourceLineNo">358</span> if (dep.getSpecification() == null || !dep.getSpecification().getName().equals(className)) {<a name="line.358"></a>
<span class="sourceLineNo">359</span> if (dep.getSpecification() != null) {<a name="line.359"></a>
<span class="sourceLineNo">360</span> if (error) {<a name="line.360"></a>
<span class="sourceLineNo">361</span> throw new ConfigurationException("A required service is not correct : the discovered type ["<a name="line.361"></a>
<span class="sourceLineNo">362</span> + className<a name="line.362"></a>
<span class="sourceLineNo">363</span> + "] and the specified (or already discovered) service interface ["<a name="line.363"></a>
<span class="sourceLineNo">364</span> + dep.getSpecification().getName()<a name="line.364"></a>
<span class="sourceLineNo">365</span> + "] are not the same");<a name="line.365"></a>
<span class="sourceLineNo">366</span> } else {<a name="line.366"></a>
<span class="sourceLineNo">367</span> // If the specification is different, warn that we will override it.<a name="line.367"></a>
<span class="sourceLineNo">368</span> warn("["<a name="line.368"></a>
<span class="sourceLineNo">369</span> + getInstanceManager().getInstanceName()<a name="line.369"></a>
<span class="sourceLineNo">370</span> + "] The field type ["<a name="line.370"></a>
<span class="sourceLineNo">371</span> + className<a name="line.371"></a>
<span class="sourceLineNo">372</span> + "] and the required service interface ["<a name="line.372"></a>
<span class="sourceLineNo">373</span> + dep.getSpecification()<a name="line.373"></a>
<span class="sourceLineNo">374</span> + "] are not the same");<a name="line.374"></a>
<span class="sourceLineNo">375</span> }<a name="line.375"></a>
<span class="sourceLineNo">376</span> }<a name="line.376"></a>
<span class="sourceLineNo">377</span><a name="line.377"></a>
<span class="sourceLineNo">378</span> Bundle bundle = getInstanceManager().getContext().getBundle();<a name="line.378"></a>
<span class="sourceLineNo">379</span> try {<a name="line.379"></a>
<span class="sourceLineNo">380</span> dep.setSpecification(bundle.loadClass(className));<a name="line.380"></a>
<span class="sourceLineNo">381</span> } catch (ClassNotFoundException e) {<a name="line.381"></a>
<span class="sourceLineNo">382</span> throw new ConfigurationException("The required service interface (" + className<a name="line.382"></a>
<span class="sourceLineNo">383</span> + ") cannot be loaded from bundle " + bundle.getBundleId(), e);<a name="line.383"></a>
<span class="sourceLineNo">384</span> }<a name="line.384"></a>
<span class="sourceLineNo">385</span> }<a name="line.385"></a>
<span class="sourceLineNo">386</span> }<a name="line.386"></a>
<span class="sourceLineNo">387</span> }<a name="line.387"></a>
<span class="sourceLineNo">388</span><a name="line.388"></a>
<span class="sourceLineNo">389</span> /**<a name="line.389"></a>
<span class="sourceLineNo">390</span> * Configure the handler.<a name="line.390"></a>
<span class="sourceLineNo">391</span> * @param componentMetadata : the component type metadata<a name="line.391"></a>
<span class="sourceLineNo">392</span> * @param configuration : the instance configuration<a name="line.392"></a>
<span class="sourceLineNo">393</span> * @throws ConfigurationException : one dependency metadata is not correct.<a name="line.393"></a>
<span class="sourceLineNo">394</span> * @see org.apache.felix.ipojo.Handler#configure(org.apache.felix.ipojo.metadata.Element, java.util.Dictionary)<a name="line.394"></a>
<span class="sourceLineNo">395</span> */<a name="line.395"></a>
<span class="sourceLineNo">396</span> public void configure(Element componentMetadata, Dictionary configuration) throws ConfigurationException {<a name="line.396"></a>
<span class="sourceLineNo">397</span> PojoMetadata manipulation = getFactory().getPojoMetadata();<a name="line.397"></a>
<span class="sourceLineNo">398</span> boolean atLeastOneField = false;<a name="line.398"></a>
<span class="sourceLineNo">399</span><a name="line.399"></a>
<span class="sourceLineNo">400</span> // Create the dependency according to the component metadata<a name="line.400"></a>
<span class="sourceLineNo">401</span> Element[] deps = componentMetadata.getElements("Requires");<a name="line.401"></a>
<span class="sourceLineNo">402</span><a name="line.402"></a>
<span class="sourceLineNo">403</span> // Get instance filters.<a name="line.403"></a>
<span class="sourceLineNo">404</span> Dictionary filtersConfiguration = getRequiresFilters(configuration.get("requires.filters"));<a name="line.404"></a>
<span class="sourceLineNo">405</span> Dictionary fromConfiguration = (Dictionary) configuration.get("requires.from");<a name="line.405"></a>
<span class="sourceLineNo">406</span><a name="line.406"></a>
<span class="sourceLineNo">407</span> for (int i = 0; deps != null &amp;&amp; i &lt; deps.length; i++) {<a name="line.407"></a>
<span class="sourceLineNo">408</span> // Create the dependency metadata<a name="line.408"></a>
<span class="sourceLineNo">409</span> final Element dependencyElement = deps[i];<a name="line.409"></a>
<span class="sourceLineNo">410</span><a name="line.410"></a>
<span class="sourceLineNo">411</span> String field = dependencyElement.getAttribute("field");<a name="line.411"></a>
<span class="sourceLineNo">412</span> String serviceSpecification = getServiceSpecificationAttribute(dependencyElement);<a name="line.412"></a>
<span class="sourceLineNo">413</span> String opt = dependencyElement.getAttribute("optional");<a name="line.413"></a>
<span class="sourceLineNo">414</span> boolean optional = opt != null &amp;&amp; opt.equalsIgnoreCase("true");<a name="line.414"></a>
<span class="sourceLineNo">415</span> String defaultImpl = dependencyElement.getAttribute("default-implementation");<a name="line.415"></a>
<span class="sourceLineNo">416</span><a name="line.416"></a>
<span class="sourceLineNo">417</span> String agg = dependencyElement.getAttribute("aggregate");<a name="line.417"></a>
<span class="sourceLineNo">418</span> boolean aggregate = agg != null &amp;&amp; agg.equalsIgnoreCase("true");<a name="line.418"></a>
<span class="sourceLineNo">419</span><a name="line.419"></a>
<span class="sourceLineNo">420</span> String identity = dependencyElement.getAttribute("id");<a name="line.420"></a>
<span class="sourceLineNo">421</span><a name="line.421"></a>
<span class="sourceLineNo">422</span> String nul = dependencyElement.getAttribute("nullable");<a name="line.422"></a>
<span class="sourceLineNo">423</span> boolean nullable = nul == null || nul.equalsIgnoreCase("true");<a name="line.423"></a>
<span class="sourceLineNo">424</span><a name="line.424"></a>
<span class="sourceLineNo">425</span> boolean isProxy = isProxy(dependencyElement);<a name="line.425"></a>
<span class="sourceLineNo">426</span><a name="line.426"></a>
<span class="sourceLineNo">427</span> BundleContext context = getFacetedBundleContext(dependencyElement);<a name="line.427"></a>
<span class="sourceLineNo">428</span><a name="line.428"></a>
<span class="sourceLineNo">429</span> String filter = computeFilter(dependencyElement, filtersConfiguration, fromConfiguration, aggregate, identity);<a name="line.429"></a>
<span class="sourceLineNo">430</span> Filter fil = createAndCheckFilter(filter);<a name="line.430"></a>
<span class="sourceLineNo">431</span><a name="line.431"></a>
<span class="sourceLineNo">432</span> Class spec = null;<a name="line.432"></a>
<span class="sourceLineNo">433</span> if (serviceSpecification != null) {<a name="line.433"></a>
<span class="sourceLineNo">434</span> spec = DependencyMetadataHelper.loadSpecification(serviceSpecification, getInstanceManager().getContext());<a name="line.434"></a>
<span class="sourceLineNo">435</span> }<a name="line.435"></a>
<span class="sourceLineNo">436</span><a name="line.436"></a>
<span class="sourceLineNo">437</span> int policy = DependencyMetadataHelper.getPolicy(dependencyElement);<a name="line.437"></a>
<span class="sourceLineNo">438</span> Comparator cmp = DependencyMetadataHelper.getComparator(dependencyElement, getInstanceManager().getGlobalContext());<a name="line.438"></a>
<span class="sourceLineNo">439</span><a name="line.439"></a>
<span class="sourceLineNo">440</span> Dependency dep = new Dependency(this, field, spec, fil, optional, aggregate, nullable, isProxy, identity, context, policy, cmp, defaultImpl);<a name="line.440"></a>
<span class="sourceLineNo">441</span><a name="line.441"></a>
<span class="sourceLineNo">442</span> // Look for dependency callback :<a name="line.442"></a>
<span class="sourceLineNo">443</span> addCallbacksToDependency(dependencyElement, dep);<a name="line.443"></a>
<span class="sourceLineNo">444</span><a name="line.444"></a>
<span class="sourceLineNo">445</span> // Add the constructor parameter if needed<a name="line.445"></a>
<span class="sourceLineNo">446</span> String paramIndex = dependencyElement.getAttribute("constructor-parameter");<a name="line.446"></a>
<span class="sourceLineNo">447</span> if (paramIndex != null) {<a name="line.447"></a>
<span class="sourceLineNo">448</span> int index = Integer.parseInt(paramIndex);<a name="line.448"></a>
<span class="sourceLineNo">449</span> dep.addConstructorInjection(index);<a name="line.449"></a>
<span class="sourceLineNo">450</span> }<a name="line.450"></a>
<span class="sourceLineNo">451</span><a name="line.451"></a>
<span class="sourceLineNo">452</span> // Check the dependency :<a name="line.452"></a>
<span class="sourceLineNo">453</span> if (checkDependency(dep, manipulation)) {<a name="line.453"></a>
<span class="sourceLineNo">454</span> m_dependencies.add(dep);<a name="line.454"></a>
<span class="sourceLineNo">455</span> if (dep.getField() != null) {<a name="line.455"></a>
<span class="sourceLineNo">456</span> getInstanceManager().register(manipulation.getField(dep.getField()), dep);<a name="line.456"></a>
<span class="sourceLineNo">457</span> atLeastOneField = true;<a name="line.457"></a>
<span class="sourceLineNo">458</span> }<a name="line.458"></a>
<span class="sourceLineNo">459</span> }<a name="line.459"></a>
<span class="sourceLineNo">460</span> }<a name="line.460"></a>
<span class="sourceLineNo">461</span><a name="line.461"></a>
<span class="sourceLineNo">462</span> if (atLeastOneField) { // Does register only if we have fields<a name="line.462"></a>
<span class="sourceLineNo">463</span> MethodMetadata[] methods = manipulation.getMethods();<a name="line.463"></a>
<span class="sourceLineNo">464</span> for (MethodMetadata method : methods) {<a name="line.464"></a>
<span class="sourceLineNo">465</span> for (Dependency dep : m_dependencies) {<a name="line.465"></a>
<span class="sourceLineNo">466</span> getInstanceManager().register(method, dep);<a name="line.466"></a>
<span class="sourceLineNo">467</span> }<a name="line.467"></a>
<span class="sourceLineNo">468</span> }<a name="line.468"></a>
<span class="sourceLineNo">469</span> }<a name="line.469"></a>
<span class="sourceLineNo">470</span><a name="line.470"></a>
<span class="sourceLineNo">471</span> m_description = new DependencyHandlerDescription(this, getDependencies()); // Initialize the description.<a name="line.471"></a>
<span class="sourceLineNo">472</span><a name="line.472"></a>
<span class="sourceLineNo">473</span> manageContextSources(configuration);<a name="line.473"></a>
<span class="sourceLineNo">474</span> }<a name="line.474"></a>
<span class="sourceLineNo">475</span><a name="line.475"></a>
<span class="sourceLineNo">476</span> /**<a name="line.476"></a>
<span class="sourceLineNo">477</span> * Add internal context source to all dependencies.<a name="line.477"></a>
<span class="sourceLineNo">478</span> * @param configuration the instance configuration to creates the instance configuration source<a name="line.478"></a>
<span class="sourceLineNo">479</span> */<a name="line.479"></a>
<span class="sourceLineNo">480</span> private void manageContextSources(Dictionary&lt;String, Object&gt; configuration) {<a name="line.480"></a>
<span class="sourceLineNo">481</span> m_instanceConfigurationSource = new InstanceConfigurationSource(configuration);<a name="line.481"></a>
<span class="sourceLineNo">482</span> SystemPropertiesSource systemPropertiesSource = new SystemPropertiesSource();<a name="line.482"></a>
<span class="sourceLineNo">483</span><a name="line.483"></a>
<span class="sourceLineNo">484</span> for (Dependency dependency : m_dependencies) {<a name="line.484"></a>
<span class="sourceLineNo">485</span> if (dependency.getFilter() != null) {<a name="line.485"></a>
<span class="sourceLineNo">486</span> dependency.getContextSourceManager().addContextSource(m_instanceConfigurationSource);<a name="line.486"></a>
<span class="sourceLineNo">487</span> dependency.getContextSourceManager().addContextSource(systemPropertiesSource);<a name="line.487"></a>
<span class="sourceLineNo">488</span><a name="line.488"></a>
<span class="sourceLineNo">489</span> for (Handler handler : getInstanceManager().getRegisteredHandlers()) {<a name="line.489"></a>
<span class="sourceLineNo">490</span> if (handler instanceof ContextSource) {<a name="line.490"></a>
<span class="sourceLineNo">491</span> dependency.getContextSourceManager().addContextSource((ContextSource) handler);<a name="line.491"></a>
<span class="sourceLineNo">492</span> }<a name="line.492"></a>
<span class="sourceLineNo">493</span> }<a name="line.493"></a>
<span class="sourceLineNo">494</span> }<a name="line.494"></a>
<span class="sourceLineNo">495</span> }<a name="line.495"></a>
<span class="sourceLineNo">496</span> }<a name="line.496"></a>
<span class="sourceLineNo">497</span><a name="line.497"></a>
<span class="sourceLineNo">498</span> private String computeFilter(Element dependencyElement, Dictionary filtersConfiguration, Dictionary fromConfiguration, boolean aggregate, String identity) {<a name="line.498"></a>
<span class="sourceLineNo">499</span> String filter = dependencyElement.getAttribute("filter");<a name="line.499"></a>
<span class="sourceLineNo">500</span> // Get instance filter if available<a name="line.500"></a>
<span class="sourceLineNo">501</span> if (filtersConfiguration != null &amp;&amp; identity != null &amp;&amp; filtersConfiguration.get(identity) != null) {<a name="line.501"></a>
<span class="sourceLineNo">502</span> filter = (String) filtersConfiguration.get(identity);<a name="line.502"></a>
<span class="sourceLineNo">503</span> }<a name="line.503"></a>
<span class="sourceLineNo">504</span><a name="line.504"></a>
<span class="sourceLineNo">505</span> // Compute the 'from' attribute<a name="line.505"></a>
<span class="sourceLineNo">506</span> filter = updateFilterIfFromIsEnabled(fromConfiguration, dependencyElement, filter, aggregate, identity);<a name="line.506"></a>
<span class="sourceLineNo">507</span> return filter;<a name="line.507"></a>
<span class="sourceLineNo">508</span> }<a name="line.508"></a>
<span class="sourceLineNo">509</span><a name="line.509"></a>
<span class="sourceLineNo">510</span> private String updateFilterIfFromIsEnabled(Dictionary fromConfiguration, Element dependencyElement, String filter, boolean aggregate, String identity) {<a name="line.510"></a>
<span class="sourceLineNo">511</span> String from = dependencyElement.getAttribute("from");<a name="line.511"></a>
<span class="sourceLineNo">512</span> if (fromConfiguration != null &amp;&amp; identity != null &amp;&amp; fromConfiguration.get(identity) != null) {<a name="line.512"></a>
<span class="sourceLineNo">513</span> from = (String) fromConfiguration.get(identity);<a name="line.513"></a>
<span class="sourceLineNo">514</span> }<a name="line.514"></a>
<span class="sourceLineNo">515</span> if (from != null) {<a name="line.515"></a>
<span class="sourceLineNo">516</span> String fromFilter = "(|(instance.name=" + from + ")(service.pid=" + from + "))";<a name="line.516"></a>
<span class="sourceLineNo">517</span> if (aggregate) {<a name="line.517"></a>
<span class="sourceLineNo">518</span> warn("The 'from' attribute is incompatible with aggregate requirements: only one provider will match : " + fromFilter);<a name="line.518"></a>
<span class="sourceLineNo">519</span> }<a name="line.519"></a>
<span class="sourceLineNo">520</span> if (filter != null) {<a name="line.520"></a>
<span class="sourceLineNo">521</span> filter = "(&amp;" + fromFilter + filter + ")"; // Append the two filters<a name="line.521"></a>
<span class="sourceLineNo">522</span> } else {<a name="line.522"></a>
<span class="sourceLineNo">523</span> filter = fromFilter;<a name="line.523"></a>
<span class="sourceLineNo">524</span> }<a name="line.524"></a>
<span class="sourceLineNo">525</span> }<a name="line.525"></a>
<span class="sourceLineNo">526</span> return filter;<a name="line.526"></a>
<span class="sourceLineNo">527</span> }<a name="line.527"></a>
<span class="sourceLineNo">528</span><a name="line.528"></a>
<span class="sourceLineNo">529</span> private boolean isProxy(Element dependencyElement) {<a name="line.529"></a>
<span class="sourceLineNo">530</span> boolean isProxy = true;<a name="line.530"></a>
<span class="sourceLineNo">531</span> String setting = getProxySetting();<a name="line.531"></a>
<span class="sourceLineNo">532</span><a name="line.532"></a>
<span class="sourceLineNo">533</span> if (setting == null || PROXY_ENABLED.equals(setting)) { // If not set =&gt; Enabled<a name="line.533"></a>
<span class="sourceLineNo">534</span> isProxy = true;<a name="line.534"></a>
<span class="sourceLineNo">535</span> } else if (PROXY_DISABLED.equals(setting)) {<a name="line.535"></a>
<span class="sourceLineNo">536</span> isProxy = false;<a name="line.536"></a>
<span class="sourceLineNo">537</span> }<a name="line.537"></a>
<span class="sourceLineNo">538</span><a name="line.538"></a>
<span class="sourceLineNo">539</span> String proxy = dependencyElement.getAttribute("proxy");<a name="line.539"></a>
<span class="sourceLineNo">540</span> // If proxy == null, use default value<a name="line.540"></a>
<span class="sourceLineNo">541</span> if (proxy != null) {<a name="line.541"></a>
<span class="sourceLineNo">542</span> if (proxy.equals("false")) {<a name="line.542"></a>
<span class="sourceLineNo">543</span> isProxy = false;<a name="line.543"></a>
<span class="sourceLineNo">544</span> } else if (proxy.equals("true")) {<a name="line.544"></a>
<span class="sourceLineNo">545</span> if (! isProxy) { // The configuration overrides the system setting<a name="line.545"></a>
<span class="sourceLineNo">546</span> warn("The configuration of a service dependency overrides the proxy mode");<a name="line.546"></a>
<span class="sourceLineNo">547</span> }<a name="line.547"></a>
<span class="sourceLineNo">548</span> isProxy = true;<a name="line.548"></a>
<span class="sourceLineNo">549</span> }<a name="line.549"></a>
<span class="sourceLineNo">550</span> }<a name="line.550"></a>
<span class="sourceLineNo">551</span> return isProxy;<a name="line.551"></a>
<span class="sourceLineNo">552</span> }<a name="line.552"></a>
<span class="sourceLineNo">553</span><a name="line.553"></a>
<span class="sourceLineNo">554</span> private String getProxySetting() {<a name="line.554"></a>
<span class="sourceLineNo">555</span> // Detect proxy default value.<a name="line.555"></a>
<span class="sourceLineNo">556</span> String setting = getInstanceManager().getContext().getProperty(PROXY_SETTINGS_PROPERTY);<a name="line.556"></a>
<span class="sourceLineNo">557</span><a name="line.557"></a>
<span class="sourceLineNo">558</span> // Felix also includes system properties in the bundle context property, however it is not the case of the<a name="line.558"></a>
<span class="sourceLineNo">559</span> // other frameworks, so if it's null we should call System.getProperty.<a name="line.559"></a>
<span class="sourceLineNo">560</span><a name="line.560"></a>
<span class="sourceLineNo">561</span> if (setting == null) {<a name="line.561"></a>
<span class="sourceLineNo">562</span> setting = System.getProperty(PROXY_SETTINGS_PROPERTY);<a name="line.562"></a>
<span class="sourceLineNo">563</span> }<a name="line.563"></a>
<span class="sourceLineNo">564</span> return setting;<a name="line.564"></a>
<span class="sourceLineNo">565</span> }<a name="line.565"></a>
<span class="sourceLineNo">566</span><a name="line.566"></a>
<span class="sourceLineNo">567</span> private void addCallbacksToDependency(Element dependencyElement, Dependency dep) throws ConfigurationException {<a name="line.567"></a>
<span class="sourceLineNo">568</span> Element[] cbs = dependencyElement.getElements("Callback");<a name="line.568"></a>
<span class="sourceLineNo">569</span> for (int j = 0; cbs != null &amp;&amp; j &lt; cbs.length; j++) {<a name="line.569"></a>
<span class="sourceLineNo">570</span> if (!cbs[j].containsAttribute("method") &amp;&amp; cbs[j].containsAttribute("type")) {<a name="line.570"></a>
<span class="sourceLineNo">571</span> throw new ConfigurationException("Requirement Callback : a dependency callback must contain a method " +<a name="line.571"></a>
<span class="sourceLineNo">572</span> "and a type (bind or unbind) attribute");<a name="line.572"></a>
<span class="sourceLineNo">573</span> }<a name="line.573"></a>
<span class="sourceLineNo">574</span> String method = cbs[j].getAttribute("method");<a name="line.574"></a>
<span class="sourceLineNo">575</span> String type = cbs[j].getAttribute("type");<a name="line.575"></a>
<span class="sourceLineNo">576</span><a name="line.576"></a>
<span class="sourceLineNo">577</span> int methodType = DependencyCallback.UNBIND;<a name="line.577"></a>
<span class="sourceLineNo">578</span> if ("bind".equalsIgnoreCase(type)) {<a name="line.578"></a>
<span class="sourceLineNo">579</span> methodType = DependencyCallback.BIND;<a name="line.579"></a>
<span class="sourceLineNo">580</span> } else if ("modified".equalsIgnoreCase(type)) {<a name="line.580"></a>
<span class="sourceLineNo">581</span> methodType = DependencyCallback.MODIFIED;<a name="line.581"></a>
<span class="sourceLineNo">582</span> }<a name="line.582"></a>
<span class="sourceLineNo">583</span><a name="line.583"></a>
<span class="sourceLineNo">584</span> dep.addDependencyCallback(createDependencyHandler(dep, method, methodType));<a name="line.584"></a>
<span class="sourceLineNo">585</span> }<a name="line.585"></a>
<span class="sourceLineNo">586</span> }<a name="line.586"></a>
<span class="sourceLineNo">587</span><a name="line.587"></a>
<span class="sourceLineNo">588</span> protected DependencyCallback createDependencyHandler(final Dependency dep, final String method, final int type) {<a name="line.588"></a>
<span class="sourceLineNo">589</span> return new DependencyCallback(dep, method, type);<a name="line.589"></a>
<span class="sourceLineNo">590</span> }<a name="line.590"></a>
<span class="sourceLineNo">591</span><a name="line.591"></a>
<span class="sourceLineNo">592</span> private Filter createAndCheckFilter(String filter) throws ConfigurationException {<a name="line.592"></a>
<span class="sourceLineNo">593</span> Filter fil = null;<a name="line.593"></a>
<span class="sourceLineNo">594</span> if (filter != null) {<a name="line.594"></a>
<span class="sourceLineNo">595</span> try {<a name="line.595"></a>
<span class="sourceLineNo">596</span> fil = getInstanceManager().getContext().createFilter(filter);<a name="line.596"></a>
<span class="sourceLineNo">597</span> } catch (InvalidSyntaxException e) {<a name="line.597"></a>
<span class="sourceLineNo">598</span> throw new ConfigurationException("A requirement filter is invalid : " + filter, e);<a name="line.598"></a>
<span class="sourceLineNo">599</span> }<a name="line.599"></a>
<span class="sourceLineNo">600</span> }<a name="line.600"></a>
<span class="sourceLineNo">601</span> return fil;<a name="line.601"></a>
<span class="sourceLineNo">602</span> }<a name="line.602"></a>
<span class="sourceLineNo">603</span><a name="line.603"></a>
<span class="sourceLineNo">604</span> private BundleContext getFacetedBundleContext(Element dep) {<a name="line.604"></a>
<span class="sourceLineNo">605</span> String scope = dep.getAttribute("scope");<a name="line.605"></a>
<span class="sourceLineNo">606</span> BundleContext context = getInstanceManager().getContext(); // Get the default bundle context.<a name="line.606"></a>
<span class="sourceLineNo">607</span> if (scope != null) {<a name="line.607"></a>
<span class="sourceLineNo">608</span> // If we are not in a composite, the policy is set to global.<a name="line.608"></a>
<span class="sourceLineNo">609</span> if (scope.equalsIgnoreCase("global") || ((((IPojoContext) getInstanceManager().getContext()).getServiceContext()) == null)) {<a name="line.609"></a>
<span class="sourceLineNo">610</span> context =<a name="line.610"></a>
<span class="sourceLineNo">611</span> new PolicyServiceContext(getInstanceManager().getGlobalContext(), getInstanceManager().getLocalServiceContext(),<a name="line.611"></a>
<span class="sourceLineNo">612</span> PolicyServiceContext.GLOBAL);<a name="line.612"></a>
<span class="sourceLineNo">613</span> } else if (scope.equalsIgnoreCase("composite")) {<a name="line.613"></a>
<span class="sourceLineNo">614</span> context =<a name="line.614"></a>
<span class="sourceLineNo">615</span> new PolicyServiceContext(getInstanceManager().getGlobalContext(), getInstanceManager().getLocalServiceContext(),<a name="line.615"></a>
<span class="sourceLineNo">616</span> PolicyServiceContext.LOCAL);<a name="line.616"></a>
<span class="sourceLineNo">617</span> } else if (scope.equalsIgnoreCase("composite+global")) {<a name="line.617"></a>
<span class="sourceLineNo">618</span> context =<a name="line.618"></a>
<span class="sourceLineNo">619</span> new PolicyServiceContext(getInstanceManager().getGlobalContext(), getInstanceManager().getLocalServiceContext(),<a name="line.619"></a>
<span class="sourceLineNo">620</span> PolicyServiceContext.LOCAL_AND_GLOBAL);<a name="line.620"></a>
<span class="sourceLineNo">621</span> }<a name="line.621"></a>
<span class="sourceLineNo">622</span> }<a name="line.622"></a>
<span class="sourceLineNo">623</span> return context;<a name="line.623"></a>
<span class="sourceLineNo">624</span> }<a name="line.624"></a>
<span class="sourceLineNo">625</span><a name="line.625"></a>
<span class="sourceLineNo">626</span> private String getServiceSpecificationAttribute(Element dep) {<a name="line.626"></a>
<span class="sourceLineNo">627</span> String serviceSpecification = dep.getAttribute("interface");<a name="line.627"></a>
<span class="sourceLineNo">628</span> // the 'interface' attribute is deprecated<a name="line.628"></a>
<span class="sourceLineNo">629</span> if (serviceSpecification != null) {<a name="line.629"></a>
<span class="sourceLineNo">630</span> warn("The 'interface' attribute is deprecated, use the 'specification' attribute instead");<a name="line.630"></a>
<span class="sourceLineNo">631</span> } else {<a name="line.631"></a>
<span class="sourceLineNo">632</span> serviceSpecification = dep.getAttribute("specification");<a name="line.632"></a>
<span class="sourceLineNo">633</span> }<a name="line.633"></a>
<span class="sourceLineNo">634</span> return serviceSpecification;<a name="line.634"></a>
<span class="sourceLineNo">635</span> }<a name="line.635"></a>
<span class="sourceLineNo">636</span><a name="line.636"></a>
<span class="sourceLineNo">637</span> /**<a name="line.637"></a>
<span class="sourceLineNo">638</span> * Gets the requires filter configuration from the given object.<a name="line.638"></a>
<span class="sourceLineNo">639</span> * The given object must come from the instance configuration.<a name="line.639"></a>
<span class="sourceLineNo">640</span> * This method was made to fix FELIX-2688. It supports filter configuration using<a name="line.640"></a>
<span class="sourceLineNo">641</span> * an array:<a name="line.641"></a>
<span class="sourceLineNo">642</span> * &lt;code&gt;{"myFirstDep", "(property1=value1)", "mySecondDep", "(property2=value2)"});&lt;/code&gt;<a name="line.642"></a>
<span class="sourceLineNo">643</span> * @param requiresFiltersValue the value contained in the instance<a name="line.643"></a>
<span class="sourceLineNo">644</span> * configuration.<a name="line.644"></a>
<span class="sourceLineNo">645</span> * @return the dictionary. If the object in already a dictionary, just returns it,<a name="line.645"></a>
<span class="sourceLineNo">646</span> * if it's an array, builds the dictionary.<a name="line.646"></a>
<span class="sourceLineNo">647</span> * @throws ConfigurationException the dictionary cannot be built<a name="line.647"></a>
<span class="sourceLineNo">648</span> */<a name="line.648"></a>
<span class="sourceLineNo">649</span> private Dictionary getRequiresFilters(Object requiresFiltersValue)<a name="line.649"></a>
<span class="sourceLineNo">650</span> throws ConfigurationException {<a name="line.650"></a>
<span class="sourceLineNo">651</span> if (requiresFiltersValue != null<a name="line.651"></a>
<span class="sourceLineNo">652</span> &amp;&amp; requiresFiltersValue.getClass().isArray()) {<a name="line.652"></a>
<span class="sourceLineNo">653</span> String[] filtersArray = (String[]) requiresFiltersValue;<a name="line.653"></a>
<span class="sourceLineNo">654</span> if (filtersArray.length % 2 != 0) {<a name="line.654"></a>
<span class="sourceLineNo">655</span> throw new ConfigurationException(<a name="line.655"></a>
<span class="sourceLineNo">656</span> "A requirement filter is invalid : "<a name="line.656"></a>
<span class="sourceLineNo">657</span> + requiresFiltersValue);<a name="line.657"></a>
<span class="sourceLineNo">658</span> }<a name="line.658"></a>
<span class="sourceLineNo">659</span> Dictionary&lt;String, Object&gt; requiresFilters = new Hashtable&lt;String, Object&gt;();<a name="line.659"></a>
<span class="sourceLineNo">660</span> for (int i = 0; i &lt; filtersArray.length; i += 2) {<a name="line.660"></a>
<span class="sourceLineNo">661</span> requiresFilters.put(filtersArray[i], filtersArray[i + 1]);<a name="line.661"></a>
<span class="sourceLineNo">662</span> }<a name="line.662"></a>
<span class="sourceLineNo">663</span> return requiresFilters;<a name="line.663"></a>
<span class="sourceLineNo">664</span> }<a name="line.664"></a>
<span class="sourceLineNo">665</span><a name="line.665"></a>
<span class="sourceLineNo">666</span> return (Dictionary) requiresFiltersValue;<a name="line.666"></a>
<span class="sourceLineNo">667</span> }<a name="line.667"></a>
<span class="sourceLineNo">668</span><a name="line.668"></a>
<span class="sourceLineNo">669</span> /**<a name="line.669"></a>
<span class="sourceLineNo">670</span> * Handler start method.<a name="line.670"></a>
<span class="sourceLineNo">671</span> * @see org.apache.felix.ipojo.Handler#start()<a name="line.671"></a>
<span class="sourceLineNo">672</span> */<a name="line.672"></a>
<span class="sourceLineNo">673</span> public void start() {<a name="line.673"></a>
<span class="sourceLineNo">674</span> // Start the dependencies<a name="line.674"></a>
<span class="sourceLineNo">675</span> for (Dependency dep : m_dependencies) {<a name="line.675"></a>
<span class="sourceLineNo">676</span> dep.start();<a name="line.676"></a>
<span class="sourceLineNo">677</span> }<a name="line.677"></a>
<span class="sourceLineNo">678</span> // Check the state<a name="line.678"></a>
<span class="sourceLineNo">679</span> m_started = true;<a name="line.679"></a>
<span class="sourceLineNo">680</span> setValidity(false);<a name="line.680"></a>
<span class="sourceLineNo">681</span> checkContext();<a name="line.681"></a>
<span class="sourceLineNo">682</span> }<a name="line.682"></a>
<span class="sourceLineNo">683</span><a name="line.683"></a>
<span class="sourceLineNo">684</span> /**<a name="line.684"></a>
<span class="sourceLineNo">685</span> * Handler stop method.<a name="line.685"></a>
<span class="sourceLineNo">686</span> * @see org.apache.felix.ipojo.Handler#stop()<a name="line.686"></a>
<span class="sourceLineNo">687</span> */<a name="line.687"></a>
<span class="sourceLineNo">688</span> public void stop() {<a name="line.688"></a>
<span class="sourceLineNo">689</span> m_started = false;<a name="line.689"></a>
<span class="sourceLineNo">690</span> for (Dependency dep : m_dependencies) {<a name="line.690"></a>
<span class="sourceLineNo">691</span> dep.stop();<a name="line.691"></a>
<span class="sourceLineNo">692</span> }<a name="line.692"></a>
<span class="sourceLineNo">693</span> }<a name="line.693"></a>
<span class="sourceLineNo">694</span><a name="line.694"></a>
<span class="sourceLineNo">695</span> /**<a name="line.695"></a>
<span class="sourceLineNo">696</span> * Handler createInstance method. This method is override to allow delayed callback invocation.<a name="line.696"></a>
<span class="sourceLineNo">697</span> * @param instance : the created object<a name="line.697"></a>
<span class="sourceLineNo">698</span> * @see org.apache.felix.ipojo.PrimitiveHandler#onCreation(Object)<a name="line.698"></a>
<span class="sourceLineNo">699</span> */<a name="line.699"></a>
<span class="sourceLineNo">700</span> public void onCreation(Object instance) {<a name="line.700"></a>
<span class="sourceLineNo">701</span> for (Dependency dep : m_dependencies) {<a name="line.701"></a>
<span class="sourceLineNo">702</span> dep.onObjectCreation(instance);<a name="line.702"></a>
<span class="sourceLineNo">703</span> }<a name="line.703"></a>
<span class="sourceLineNo">704</span> }<a name="line.704"></a>
<span class="sourceLineNo">705</span><a name="line.705"></a>
<span class="sourceLineNo">706</span> /**<a name="line.706"></a>
<span class="sourceLineNo">707</span> * Get the dependency handler description.<a name="line.707"></a>
<span class="sourceLineNo">708</span> * @return the dependency handler description.<a name="line.708"></a>
<span class="sourceLineNo">709</span> * @see org.apache.felix.ipojo.Handler#getDescription()<a name="line.709"></a>
<span class="sourceLineNo">710</span> */<a name="line.710"></a>
<span class="sourceLineNo">711</span> public HandlerDescription getDescription() {<a name="line.711"></a>
<span class="sourceLineNo">712</span> return m_description;<a name="line.712"></a>
<span class="sourceLineNo">713</span> }<a name="line.713"></a>
<span class="sourceLineNo">714</span><a name="line.714"></a>
<span class="sourceLineNo">715</span> /**<a name="line.715"></a>
<span class="sourceLineNo">716</span> * The instance is reconfigured.<a name="line.716"></a>
<span class="sourceLineNo">717</span> * @param configuration the new instance configuration.<a name="line.717"></a>
<span class="sourceLineNo">718</span> */<a name="line.718"></a>
<span class="sourceLineNo">719</span> @Override<a name="line.719"></a>
<span class="sourceLineNo">720</span> public void reconfigure(Dictionary configuration) {<a name="line.720"></a>
<span class="sourceLineNo">721</span> m_instanceConfigurationSource.reconfigure(configuration);<a name="line.721"></a>
<span class="sourceLineNo">722</span> }<a name="line.722"></a>
<span class="sourceLineNo">723</span><a name="line.723"></a>
<span class="sourceLineNo">724</span> @Override<a name="line.724"></a>
<span class="sourceLineNo">725</span> public void stateChanged(int state) {<a name="line.725"></a>
<span class="sourceLineNo">726</span> if (state == ComponentInstance.DISPOSED) {<a name="line.726"></a>
<span class="sourceLineNo">727</span> // Cleanup all dependencies<a name="line.727"></a>
<span class="sourceLineNo">728</span> for (Dependency dep : m_dependencies) {<a name="line.728"></a>
<span class="sourceLineNo">729</span> dep.cleanup();<a name="line.729"></a>
<span class="sourceLineNo">730</span> }<a name="line.730"></a>
<span class="sourceLineNo">731</span> }<a name="line.731"></a>
<span class="sourceLineNo">732</span> super.stateChanged(state);<a name="line.732"></a>
<span class="sourceLineNo">733</span> }<a name="line.733"></a>
<span class="sourceLineNo">734</span>}<a name="line.734"></a>
</pre>
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