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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.util;<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.Dictionary;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.felix.ipojo.ConfigurationException;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.felix.ipojo.ContextListener;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.felix.ipojo.ContextSource;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.felix.ipojo.composite.CompositeManager;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.felix.ipojo.parser.ParseUtils;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.felix.ipojo.util.DependencyModel;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.felix.ipojo.util.Tracker;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.felix.ipojo.util.TrackerCustomizer;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.osgi.framework.BundleContext;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.osgi.framework.Constants;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.osgi.framework.Filter;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.osgi.framework.InvalidSyntaxException;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.osgi.framework.ServiceReference;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span>/**<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * This class manages context-source management.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a><a name="line.41"></a> |
| <span class="sourceLineNo">042</span> */<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>public class SourceManager implements ContextListener {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> /**<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * Source Name service property.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> public static final String SOURCE_NAME = "source.name";<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span> /**<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * Managed dependency.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private DependencyModel m_dependency;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> /**<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * List of monitored context sources.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> */<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private List/* <ContextSource> */m_sources = new ArrayList(1);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> /**<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * PRoperties contained in the original filter.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> */<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private String[] m_properties;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> /**<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * Original filter (containing variables). <a name="line.66"></a> |
| <span class="sourceLineNo">067</span> */<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private String m_filter;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> /**<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * Bundle context.<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> */<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private BundleContext m_context;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> /**<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * Service Tracker List.<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> */<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private List/*<SourceTracker>*/m_trackers = new ArrayList(1);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> /**<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * Constructor.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @param sources : context-source attribute from the dependency metadata<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @param depfilter : original dependency filter<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * @param dependency : dependency object<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * @param manager : composite manager<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * @throws ConfigurationException : the sources are incorrect.<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> */<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public SourceManager(String sources, String depfilter, DependencyModel dependency, CompositeManager manager) throws ConfigurationException {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> m_filter = depfilter;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> m_properties = getProperties(depfilter);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> m_dependency = dependency;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> m_context = manager.getGlobalContext();<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> if (manager.getParentServiceContext() == null) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> // The parent is the global context<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> parseSources(sources, manager.getGlobalContext(), manager.getGlobalContext(), manager.getServiceContext());<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> } else {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> parseSources(sources, manager.getGlobalContext(), manager.getParentServiceContext(), manager.getServiceContext());<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> }<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> /**<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * Start the context management.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> */<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> public void start() {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> for (int i = 0; i < m_trackers.size(); i++) {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> ((SourceTracker) m_trackers.get(i)).open();<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> computeFilter();<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> /**<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * Stop the context management.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> */<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> public void stop() {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> for (int i = 0; i < m_trackers.size(); i++) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> ((SourceTracker) m_trackers.get(i)).close();<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> setFilter(m_filter);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> m_sources.clear();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<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> * Get the state of this source manager.<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * @return the state of this source manager.<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> */<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> public int getState() {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> if (m_sources.isEmpty()) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> return DependencyModel.UNRESOLVED;<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> } else {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> return DependencyModel.RESOLVED;<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> /**<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * Set the filter of the managed dependency.<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * @param filter : the new filter to apply<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> */<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> private void setFilter(String filter) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> if (!filter.equals(m_dependency.getFilter())) {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> // Reconfigure<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> try {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> m_dependency.setFilter(m_context.createFilter(filter));<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> } catch (InvalidSyntaxException e) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> throw new IllegalStateException("A context filter is invalid : " + filter, e);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> /**<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * Compute the new filter.<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> */<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> private void computeFilter() {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> String fil = m_filter;<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> synchronized (this) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> for (int i = 0; i < m_sources.size(); i++) {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> Dictionary props = ((ContextSource) m_sources.get(i)).getContext();<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> fil = substitute(fil, props); //NOPMD<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> }<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> if (!fil.equals(m_dependency.getFilter())) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> setFilter(fil);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> /**<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> * This method substitute ${var} substring by values stored in a map.<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> * @param str : string with variables<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> * @param values : dictionary containing the variable name and the value.<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> * @return resulted string<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> */<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> public static String substitute(String str, Dictionary values) { <a name="line.171"></a> |
| <span class="sourceLineNo">172</span> int len = str.length();<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> StringBuffer buffer = new StringBuffer(len);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> int prev = 0;<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> int start = str.indexOf("${");<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> int end = str.indexOf('}', start);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> while (start != -1 && end != -1) {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> String key = str.substring(start + 2, end);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> Object value = values.get(key);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> if (value == null) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> buffer.append(str.substring(prev, end + 1));<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> } else {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> buffer.append(str.substring(prev, start));<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> buffer.append(value);<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> prev = end + 1;<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> if (prev >= str.length()) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> break;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> }<a name="line.190"></a> |
| <span class="sourceLineNo">191</span><a name="line.191"></a> |
| <span class="sourceLineNo">192</span> start = str.indexOf("${", prev);<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> if (start != -1) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> end = str.indexOf('}', start);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> buffer.append(str.substring(prev));<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> return buffer.toString();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> /**<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * Compute the properties (${name}) from the given filter.<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * @param str : string form of the filter.<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * @return the list of found properties.<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> */<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> public static String[] getProperties(String str) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> List list = new ArrayList();<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> int prev = 0;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> int start = str.indexOf("${");<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> int end = str.indexOf('}', start);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> while (start != -1 && end != -1) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> String key = str.substring(start + 2, end);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> list.add(key);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> prev = end + 1;<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> if (prev >= str.length()) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> break;<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> start = str.indexOf("${", prev);<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> if (start != -1) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> end = str.indexOf('}', start);<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> return (String[]) list.toArray(new String[list.size()]);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span><a name="line.229"></a> |
| <span class="sourceLineNo">230</span> /**<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> * A context source has modified a monitored property. <a name="line.231"></a> |
| <span class="sourceLineNo">232</span> * @param source : source<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> * @param property : modified property<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> * @param value : new value.<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * @see org.apache.felix.ipojo.ContextListener#update(org.apache.felix.ipojo.ContextSource, java.lang.String, java.lang.Object)<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> */<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> public synchronized void update(ContextSource source, String property, Object value) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> computeFilter();<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> }<a name="line.239"></a> |
| <span class="sourceLineNo">240</span><a name="line.240"></a> |
| <span class="sourceLineNo">241</span> /**<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> * Parse the context-source attribute in order to create source tracker object.<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> * @param sourceAtt : context-source attribute.<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> * @param global : global bundle context.<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> * @param parent : parent bundle context.<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> * @param local : local bundle context.<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> * @throws ConfigurationException : the context-source attribute is invalid.<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> */<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> private void parseSources(String sourceAtt, BundleContext global, BundleContext parent, BundleContext local) throws ConfigurationException {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> String[] sources = ParseUtils.split(sourceAtt, ",");<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> for (int i = 0; i < sources.length; i++) {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> String[] srcs = ParseUtils.split(sources[i], ":");<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> if (srcs.length == 1) {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> // No prefix use local. //TODO choose default case.<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> SourceTracker tracker = new SourceTracker(srcs[0], local);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> m_trackers.add(tracker);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> } else if (srcs.length == 2) {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> // According to prefix add the source in the good list.<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> if (srcs[0].equalsIgnoreCase("parent")) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> SourceTracker tracker = new SourceTracker(srcs[1], parent);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> m_trackers.add(tracker);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> } else if (srcs[0].equalsIgnoreCase("local")) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> SourceTracker tracker = new SourceTracker(srcs[1], local);<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> m_trackers.add(tracker);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> } else if (srcs[0].equalsIgnoreCase("global")) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> SourceTracker tracker = new SourceTracker(srcs[1], global);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> m_trackers.add(tracker);<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> } else {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> throw new ConfigurationException("Unknowns context scope : " + srcs[0]);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> } else {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> throw new ConfigurationException("Malformed context source : " + sources[i]);<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> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span><a name="line.276"></a> |
| <span class="sourceLineNo">277</span> /**<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> * A context source appears.<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> * @param source : new context source.<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> */<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> private void addContextSource(ContextSource source) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> m_sources.add(source);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> computeFilter();<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> source.registerContextListener(this, m_properties);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> }<a name="line.285"></a> |
| <span class="sourceLineNo">286</span><a name="line.286"></a> |
| <span class="sourceLineNo">287</span> /**<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> * A context source disappears.<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * @param source : leaving context source.<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> */<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> private void removeContextSource(ContextSource source) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> m_sources.remove(source);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> computeFilter();<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> private class SourceTracker implements TrackerCustomizer {<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> * Service tracker.<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> */<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> private Tracker m_tracker;<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> * Constructor.<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * @param name : name of the required context-source.<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * @param countext : bundle context to use.<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> * @throws ConfigurationException : the context-source name is invalid.<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> */<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> public SourceTracker(String name, BundleContext countext) throws ConfigurationException {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> String fil = "(&(" + Constants.OBJECTCLASS + "=" + ContextSource.class.getName() + ")(" + SOURCE_NAME + "=" + name + "))";<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> try {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> Filter filter = countext.createFilter(fil);<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> m_tracker = new Tracker(countext, filter, this);<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> } catch (InvalidSyntaxException e) {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> throw new ConfigurationException("A Context source filter is invalid " + fil, e);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> }<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> /**<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> * Open the tracker.<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> */<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> public void open() {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> m_tracker.open();<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span><a name="line.325"></a> |
| <span class="sourceLineNo">326</span> /**<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> * Close the tracker.<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> */<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> public void close() {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> m_tracker.close();<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> /**<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * A new context-source was added.<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> * This method inject the context-source object in the source manager.<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> * @param reference : service reference.<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> * @see org.apache.felix.ipojo.util.TrackerCustomizer#addedService(org.osgi.framework.ServiceReference)<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> */<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> public void addedService(ServiceReference reference) {<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> addContextSource((ContextSource) m_tracker.getService(reference));<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span><a name="line.342"></a> |
| <span class="sourceLineNo">343</span> /**<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> * A new context-source is adding in the tracker.. <a name="line.344"></a> |
| <span class="sourceLineNo">345</span> * @param reference : service reference<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> * @return true.<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> * @see org.apache.felix.ipojo.util.TrackerCustomizer#addingService(org.osgi.framework.ServiceReference)<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> */<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> public boolean addingService(ServiceReference reference) {<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> return true;<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> }<a name="line.351"></a> |
| <span class="sourceLineNo">352</span><a name="line.352"></a> |
| <span class="sourceLineNo">353</span> /**<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> * A used context-source is modified.<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> * @param reference : service reference.<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> * @param service : service object.<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> * @see org.apache.felix.ipojo.util.TrackerCustomizer#modifiedService(org.osgi.framework.ServiceReference, java.lang.Object)<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> */<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> public void modifiedService(ServiceReference reference, Object service) {<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> // Nothing to do.<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> }<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> /**<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * A used context-source disappears.<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> * This method notify the Source Manager in order to manage this departure. <a name="line.365"></a> |
| <span class="sourceLineNo">366</span> * @param reference : service reference.<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> * @param service : service object.<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> * @see org.apache.felix.ipojo.util.TrackerCustomizer#modifiedService(org.osgi.framework.ServiceReference, java.lang.Object)<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> */<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> public void removedService(ServiceReference reference, Object service) {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> removeContextSource((ContextSource) service);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span><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> |
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| </div> |
| </body> |
| </html> |
