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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.composite.service.instantiator;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Comparator;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Dictionary;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Enumeration;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Properties;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.felix.ipojo.ComponentInstance;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.felix.ipojo.ConfigurationException;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.felix.ipojo.PolicyServiceContext;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.felix.ipojo.architecture.HandlerDescription;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.felix.ipojo.composite.CompositeHandler;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.felix.ipojo.composite.instance.InstanceHandler;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.felix.ipojo.composite.util.SourceManager;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.felix.ipojo.metadata.Element;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.felix.ipojo.parser.ParseException;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.felix.ipojo.util.DependencyMetadataHelper;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.felix.ipojo.util.DependencyModel;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.felix.ipojo.util.DependencyStateListener;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.osgi.framework.BundleContext;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.osgi.framework.Filter;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.osgi.framework.InvalidSyntaxException;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span>/**<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * Service Instantiator Class. This handler allows to instantiate service<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * instance inside the composition.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> *<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> */<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class ServiceDependencyHandler extends CompositeHandler implements DependencyStateListener {<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> * List of instances to manage.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private List/* <SvcInstance> */m_instances = new ArrayList();<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> * List of importers.<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> */<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private List/* <ServiceImporter> */ m_importers = new ArrayList();<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> * Flag indicating if the handler has already finished the start method.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private boolean m_isStarted;<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> * The handler description.<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> */<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private ServiceInstantiatorDescription m_description;<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> * Source Managers.<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> */<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private List m_sources;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><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> * Create a Service instance object form the given Element.<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * This method parse the given element and configure the service instance object.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * @param service : the Element describing the service instance<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @param conf : the configuration from the composite instance<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @throws ConfigurationException : the service instance cannot be created correctly<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> */<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private void createServiceInstance(Element service, Dictionary conf) throws ConfigurationException {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> // Prepare the configuration to append.<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> Properties toAppend = new Properties();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> Enumeration keys = conf.keys();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> while(keys.hasMoreElements()) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> String key = (String) keys.nextElement();<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> if (! (key.equals("instance.name")<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> || key.equals("component"))) { // Remove instance.name and component<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> toAppend.put(key, conf.get(key));<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><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> String spec = service.getAttribute("specification");<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> if (spec == null) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> throw new ConfigurationException("Malformed service : the specification attribute is mandatory");<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> }<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> String filter = "(&(!(factory.name=" + getCompositeManager().getFactory().getComponentDescription().getName() + "))(factory.state=1))"; // Cannot reinstantiate yourself<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> String givenFilter = service.getAttribute("filter");<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> if (givenFilter != null) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> filter = "(&" + filter + givenFilter + ")"; //NOPMD<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> Filter fil;<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> try {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> fil = getCompositeManager().getGlobalContext().createFilter(filter);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> } catch (InvalidSyntaxException e) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> throw new ConfigurationException("Malformed filter " + filter, e);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span><a name="line.113"></a> |
| <span class="sourceLineNo">114</span> Properties prop = new Properties();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> Element[] props = service.getElements("property");<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> for (int k = 0; props != null && k < props.length; k++) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> try {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> InstanceHandler.parseProperty(props[k], prop);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> } catch (ParseException e) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> throw new ConfigurationException("An instance configuration is invalid", e);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> Properties instanceConfiguration = new Properties();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> instanceConfiguration.putAll(prop);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> instanceConfiguration.putAll(toAppend);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> String aggregate = service.getAttribute("aggregate");<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> boolean agg = aggregate != null && aggregate.equalsIgnoreCase("true");<a name="line.129"></a> |
| <span class="sourceLineNo">130</span><a name="line.130"></a> |
| <span class="sourceLineNo">131</span> String optional = service.getAttribute("optional");<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> boolean opt = optional != null && optional.equalsIgnoreCase("true");<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> int policy = DependencyMetadataHelper.getPolicy(service);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> Comparator cmp = DependencyMetadataHelper.getComparator(service, getCompositeManager().getGlobalContext());<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> SvcInstance inst = new SvcInstance(this, spec, instanceConfiguration, agg, opt, fil, cmp, policy);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> m_instances.add(inst);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> String sources = service.getAttribute("context-source");<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> if (sources != null) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> SourceManager source = new SourceManager(sources, filter, inst, getCompositeManager());<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> if (m_sources == null) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> m_sources = new ArrayList(1);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> m_sources.add(source);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> }<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> /**<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> * Create a Service importer object from the given Element.<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> * This method parse the given element and configure the service importer object.<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> * @param imp : Element describing the import<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> * @param confFilter : instance filter customization<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> * @throws ConfigurationException : the service importer cannot be created correctly<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> */<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> private void createServiceImport(Element imp, Dictionary confFilter) throws ConfigurationException {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> boolean optional = false;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> boolean aggregate = false;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> String specification = imp.getAttribute("specification");<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (specification == null) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // Malformed import<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> error("Malformed import: the specification attribute is mandatory");<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> throw new ConfigurationException("Malformed import : the specification attribute is mandatory");<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> } else {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> String opt = imp.getAttribute("optional");<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> optional = opt != null && opt.equalsIgnoreCase("true");<a name="line.169"></a> |
| <span class="sourceLineNo">170</span><a name="line.170"></a> |
| <span class="sourceLineNo">171</span> String agg = imp.getAttribute("aggregate");<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> aggregate = agg != null && agg.equalsIgnoreCase("true");<a name="line.172"></a> |
| <span class="sourceLineNo">173</span><a name="line.173"></a> |
| <span class="sourceLineNo">174</span> String original = "(&(objectClass=" + specification + ")(!(instance.name=" + getCompositeManager().getInstanceName() + ")))"; // Cannot import yourself<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> String filter = original;<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> String givenFilter = imp.getAttribute("filter");<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> if (givenFilter != null) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> filter = "(&" + filter + givenFilter + ")"; //NOPMD<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> String identitity = imp.getAttribute("id");<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> String scope = imp.getAttribute("scope");<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> BundleContext context = getCompositeManager().getGlobalContext(); // Get the default bundle context.<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> if (scope != null) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> if (scope.equalsIgnoreCase("global")) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> context = new PolicyServiceContext(getCompositeManager().getGlobalContext(), getCompositeManager().getParentServiceContext(), PolicyServiceContext.GLOBAL);<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> } else if (scope.equalsIgnoreCase("composite")) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> context = new PolicyServiceContext(getCompositeManager().getGlobalContext(), getCompositeManager().getParentServiceContext(), PolicyServiceContext.LOCAL);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> } else if (scope.equalsIgnoreCase("composite+global")) {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> context = new PolicyServiceContext(getCompositeManager().getGlobalContext(), getCompositeManager().getParentServiceContext(), PolicyServiceContext.LOCAL_AND_GLOBAL);<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> }<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> // Configure instance filter if available<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> if (confFilter != null && identitity != null && confFilter.get(identitity) != null) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> filter = "(&" + original + (String) confFilter.get(identitity) + ")";<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> Filter fil = null;<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> if (filter != null) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> try {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> fil = getCompositeManager().getGlobalContext().createFilter(filter);<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> } catch (InvalidSyntaxException e) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> throw new ConfigurationException("A required filter " + filter + " is malformed", e);<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> }<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> Comparator cmp = DependencyMetadataHelper.getComparator(imp, getCompositeManager().getGlobalContext());<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> Class spec = DependencyMetadataHelper.loadSpecification(specification, getCompositeManager().getGlobalContext());<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> int policy = DependencyMetadataHelper.getPolicy(imp);<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> ServiceImporter importer = new ServiceImporter(spec, fil, aggregate, optional, cmp, policy, context, identitity, this);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> m_importers.add(importer);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span><a name="line.215"></a> |
| <span class="sourceLineNo">216</span> String sources = imp.getAttribute("context-source");<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> if (sources != null) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> SourceManager source = new SourceManager(sources, filter, importer, getCompositeManager());<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> if (m_sources == null) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> m_sources = new ArrayList(1);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> m_sources.add(source);<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> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span><a name="line.227"></a> |
| <span class="sourceLineNo">228</span> /**<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> * Configure the handler.<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> * @param metadata : the metadata of the component<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> * @param conf : the instance configuration<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> * @throws ConfigurationException : the specification attribute is missing<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> * @see CompositeHandler#configure(org.apache.felix.ipojo.metadata.Element, java.util.Dictionary)<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> */<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> public void configure(Element metadata, Dictionary conf) throws ConfigurationException {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> Element[] services = metadata.getElements("subservice");<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> // Get instance filters<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> Dictionary confFilter = null;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> if (conf.get("requires.filters") != null) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> confFilter = (Dictionary) conf.get("requires.filters");<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> for (int i = 0; i < services.length; i++) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> String action = services[i].getAttribute("action");<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> if (action == null) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> throw new ConfigurationException("The action attribute must be set to 'instantiate' or 'import'");<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> } else if ("instantiate".equalsIgnoreCase(action)) {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> createServiceInstance(services[i], conf);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> } else if ("import".equalsIgnoreCase(action)) {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> createServiceImport(services[i], confFilter);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> } else {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> throw new ConfigurationException("Unknown action : " + action);<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><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> m_description = new ServiceInstantiatorDescription(this, m_instances, m_importers);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> }<a name="line.257"></a> |
| <span class="sourceLineNo">258</span><a name="line.258"></a> |
| <span class="sourceLineNo">259</span> /**<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * Start the service instantiator handler.<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> * Start all created service instance.<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> * @see org.apache.felix.ipojo.composite.CompositeHandler#start()<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> */<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> public void start() {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> for (int i = 0; m_sources != null && i < m_sources.size(); i++) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> SourceManager source = (SourceManager) m_sources.get(i);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> source.start();<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> }<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> for (int i = 0; i < m_importers.size(); i++) {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> ServiceImporter imp = (ServiceImporter) m_importers.get(i);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> imp.start();<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> }<a name="line.273"></a> |
| <span class="sourceLineNo">274</span><a name="line.274"></a> |
| <span class="sourceLineNo">275</span> for (int i = 0; i < m_instances.size(); i++) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> SvcInstance inst = (SvcInstance) m_instances.get(i);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> inst.start();<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> isHandlerValid();<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> m_isStarted = true;<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> /**<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * Check the handler validity.<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * @see org.apache.felix.ipojo.composite.CompositeHandler#isValid()<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> */<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> private void isHandlerValid() {<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> for (int i = 0; i < m_importers.size(); i++) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> ServiceImporter imp = (ServiceImporter) m_importers.get(i);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> if (imp.getState() != DependencyModel.RESOLVED) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> setValidity(false);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> return;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> }<a name="line.295"></a> |
| <span class="sourceLineNo">296</span><a name="line.296"></a> |
| <span class="sourceLineNo">297</span> for (int i = 0; i < m_instances.size(); i++) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> SvcInstance inst = (SvcInstance) m_instances.get(i);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> if (inst.getState() != DependencyModel.RESOLVED) {<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> setValidity(false);<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> return;<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> }<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> setValidity(true);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span><a name="line.307"></a> |
| <span class="sourceLineNo">308</span> /**<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * Handler stop method.<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> * Stop all created service instance.<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * @see org.apache.felix.ipojo.composite.CompositeHandler#stop()<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> */<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> public void stop() {<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> for (int i = 0; m_sources != null && i < m_sources.size(); i++) {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> SourceManager source = (SourceManager) m_sources.get(i);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> source.stop();<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> for (int i = 0; i < m_instances.size(); i++) {<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> SvcInstance inst = (SvcInstance) m_instances.get(i);<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> inst.stop();<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> for (int i = 0; i < m_importers.size(); i++) {<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> ServiceImporter imp = (ServiceImporter) m_importers.get(i);<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> imp.stop();<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> }<a name="line.327"></a> |
| <span class="sourceLineNo">328</span><a name="line.328"></a> |
| <span class="sourceLineNo">329</span> m_isStarted = false;<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> * State change callback.<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * This method is used to freeze the set of used provider if the static binding policy is used.<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> * @param newState : the new state of the underlying instance<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> * @see org.apache.felix.ipojo.Handler#stateChanged(int)<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> */<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> public void stateChanged(int newState) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> // If we are becoming valid and started, check if we need to freeze importers.<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> if (m_isStarted && newState == ComponentInstance.VALID) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> for (int i = 0; i < m_importers.size(); i++) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> ServiceImporter imp = (ServiceImporter) m_importers.get(i);<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> if (imp.getBindingPolicy() == DependencyModel.STATIC_BINDING_POLICY) {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> imp.freeze();<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><a name="line.347"></a> |
| <span class="sourceLineNo">348</span> for (int i = 0; i < m_instances.size(); i++) {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> SvcInstance imp = (SvcInstance) m_instances.get(i);<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> if (imp.getBindingPolicy() == DependencyModel.STATIC_BINDING_POLICY) {<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> imp.freeze();<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> |
| <span class="sourceLineNo">357</span> /**<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> * An service instance becomes valid.<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> * @param dep : dependency becoming valid.<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> */<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> public void validate(DependencyModel dep) {<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> if (!getValidity()) {<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> isHandlerValid();<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> }<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> }<a name="line.365"></a> |
| <span class="sourceLineNo">366</span><a name="line.366"></a> |
| <span class="sourceLineNo">367</span> /**<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> * A service instance becomes invalid.<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> * @param dep : dependency becoming valid.<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> */<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> public void invalidate(DependencyModel dep) {<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> if (getValidity()) {<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> isHandlerValid();<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> }<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> * Get the service instantiator handler description.<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * @return the description<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> * @see org.apache.felix.ipojo.composite.CompositeHandler#getDescription()<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> */<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> public HandlerDescription getDescription() {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> return m_description;<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> public List getInstances() {<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> return m_instances;<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> public List getRequirements() {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> return m_importers;<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span>}<a name="line.393"></a> |
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| </div> |
| </body> |
| </html> |
