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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.Iterator;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.felix.ipojo.Factory;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.felix.ipojo.architecture.HandlerDescription;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.felix.ipojo.metadata.Attribute;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.felix.ipojo.metadata.Element;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.felix.ipojo.util.DependencyModel;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.osgi.framework.Constants;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.osgi.framework.ServiceReference;<a name="line.30"></a>
<span class="sourceLineNo">031</span><a name="line.31"></a>
<span class="sourceLineNo">032</span>/**<a name="line.32"></a>
<span class="sourceLineNo">033</span> * Dependency Handler Description.<a name="line.33"></a>
<span class="sourceLineNo">034</span> * <a name="line.34"></a>
<span class="sourceLineNo">035</span> * @author &lt;a href="mailto:dev@felix.apache.org"&gt;Felix Project Team&lt;/a&gt;<a name="line.35"></a>
<span class="sourceLineNo">036</span> */<a name="line.36"></a>
<span class="sourceLineNo">037</span>public class DependencyHandlerDescription extends HandlerDescription {<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> * Dependencies managed by the dependency handler.<a name="line.40"></a>
<span class="sourceLineNo">041</span> */<a name="line.41"></a>
<span class="sourceLineNo">042</span> private DependencyDescription[] m_dependencies = new DependencyDescription[0];<a name="line.42"></a>
<span class="sourceLineNo">043</span> <a name="line.43"></a>
<span class="sourceLineNo">044</span> // TODO Define the DependencyStateListener Interface (in ipojo utils)<a name="line.44"></a>
<span class="sourceLineNo">045</span> <a name="line.45"></a>
<span class="sourceLineNo">046</span> // TODO Add the list of listener.<a name="line.46"></a>
<span class="sourceLineNo">047</span> <a name="line.47"></a>
<span class="sourceLineNo">048</span> // TODO Add register listener method.<a name="line.48"></a>
<span class="sourceLineNo">049</span> <a name="line.49"></a>
<span class="sourceLineNo">050</span> // TODO Add unregister listener method.<a name="line.50"></a>
<span class="sourceLineNo">051</span> <a name="line.51"></a>
<span class="sourceLineNo">052</span> // TODO Implement the validate method.<a name="line.52"></a>
<span class="sourceLineNo">053</span> <a name="line.53"></a>
<span class="sourceLineNo">054</span> // TODO Implement the invalidate method.<a name="line.54"></a>
<span class="sourceLineNo">055</span> <a name="line.55"></a>
<span class="sourceLineNo">056</span> // TODO Implement the onServiceArrival method.<a name="line.56"></a>
<span class="sourceLineNo">057</span> <a name="line.57"></a>
<span class="sourceLineNo">058</span> // TODO Implement the onServiceDeparture method.<a name="line.58"></a>
<span class="sourceLineNo">059</span> <a name="line.59"></a>
<span class="sourceLineNo">060</span> // TODO Implement the onServiceBound method.<a name="line.60"></a>
<span class="sourceLineNo">061</span> <a name="line.61"></a>
<span class="sourceLineNo">062</span> // TODO Implement the onServiceUnbound method.<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span> /**<a name="line.64"></a>
<span class="sourceLineNo">065</span> * Creates the Dependency Handler description.<a name="line.65"></a>
<span class="sourceLineNo">066</span> * @param handler the Dependency Handler.<a name="line.66"></a>
<span class="sourceLineNo">067</span> * @param deps the Dependencies<a name="line.67"></a>
<span class="sourceLineNo">068</span> */<a name="line.68"></a>
<span class="sourceLineNo">069</span> public DependencyHandlerDescription(DependencyHandler handler, Dependency[] deps) {<a name="line.69"></a>
<span class="sourceLineNo">070</span> super(handler);<a name="line.70"></a>
<span class="sourceLineNo">071</span> m_dependencies = new DependencyDescription[deps.length];<a name="line.71"></a>
<span class="sourceLineNo">072</span> for (int i = 0; i &lt; m_dependencies.length; i++) {<a name="line.72"></a>
<span class="sourceLineNo">073</span> m_dependencies[i] = new DependencyDescription(deps[i]);<a name="line.73"></a>
<span class="sourceLineNo">074</span> //TODO Register callback there on the dependency model.<a name="line.74"></a>
<span class="sourceLineNo">075</span> }<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> * Get dependencies description.<a name="line.79"></a>
<span class="sourceLineNo">080</span> * @return the dependencies list.<a name="line.80"></a>
<span class="sourceLineNo">081</span> */<a name="line.81"></a>
<span class="sourceLineNo">082</span> public DependencyDescription[] getDependencies() {<a name="line.82"></a>
<span class="sourceLineNo">083</span> return m_dependencies;<a name="line.83"></a>
<span class="sourceLineNo">084</span> }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span> /**<a name="line.86"></a>
<span class="sourceLineNo">087</span> * Builds the Dependency Handler description.<a name="line.87"></a>
<span class="sourceLineNo">088</span> * @return the handler description.<a name="line.88"></a>
<span class="sourceLineNo">089</span> * @see org.apache.felix.ipojo.architecture.HandlerDescription#getHandlerInfo()<a name="line.89"></a>
<span class="sourceLineNo">090</span> */<a name="line.90"></a>
<span class="sourceLineNo">091</span> public Element getHandlerInfo() {<a name="line.91"></a>
<span class="sourceLineNo">092</span> Element deps = super.getHandlerInfo();<a name="line.92"></a>
<span class="sourceLineNo">093</span> for (int i = 0; i &lt; m_dependencies.length; i++) {<a name="line.93"></a>
<span class="sourceLineNo">094</span> String state = "resolved";<a name="line.94"></a>
<span class="sourceLineNo">095</span> if (m_dependencies[i].getState() == DependencyModel.UNRESOLVED) {<a name="line.95"></a>
<span class="sourceLineNo">096</span> state = "unresolved";<a name="line.96"></a>
<span class="sourceLineNo">097</span> }<a name="line.97"></a>
<span class="sourceLineNo">098</span> if (m_dependencies[i].getState() == DependencyModel.BROKEN) {<a name="line.98"></a>
<span class="sourceLineNo">099</span> state = "broken";<a name="line.99"></a>
<span class="sourceLineNo">100</span> }<a name="line.100"></a>
<span class="sourceLineNo">101</span> Element dep = new Element("Requires", "");<a name="line.101"></a>
<span class="sourceLineNo">102</span> dep.addAttribute(new Attribute("Specification", m_dependencies[i].getInterface()));<a name="line.102"></a>
<span class="sourceLineNo">103</span> dep.addAttribute(new Attribute("Id", m_dependencies[i].getId()));<a name="line.103"></a>
<span class="sourceLineNo">104</span> <a name="line.104"></a>
<span class="sourceLineNo">105</span> if (m_dependencies[i].getFilter() != null) {<a name="line.105"></a>
<span class="sourceLineNo">106</span> dep.addAttribute(new Attribute("Filter", m_dependencies[i].getFilter()));<a name="line.106"></a>
<span class="sourceLineNo">107</span> }<a name="line.107"></a>
<span class="sourceLineNo">108</span> <a name="line.108"></a>
<span class="sourceLineNo">109</span> if (m_dependencies[i].isOptional()) {<a name="line.109"></a>
<span class="sourceLineNo">110</span> dep.addAttribute(new Attribute("Optional", "true"));<a name="line.110"></a>
<span class="sourceLineNo">111</span> if (m_dependencies[i].supportsNullable()) {<a name="line.111"></a>
<span class="sourceLineNo">112</span> dep.addAttribute(new Attribute("Nullable", "true")); <a name="line.112"></a>
<span class="sourceLineNo">113</span> }<a name="line.113"></a>
<span class="sourceLineNo">114</span> if (m_dependencies[i].getDefaultImplementation() != null) {<a name="line.114"></a>
<span class="sourceLineNo">115</span> dep.addAttribute(new Attribute("Default-Implementation", m_dependencies[i].getDefaultImplementation()));<a name="line.115"></a>
<span class="sourceLineNo">116</span> }<a name="line.116"></a>
<span class="sourceLineNo">117</span> } else {<a name="line.117"></a>
<span class="sourceLineNo">118</span> dep.addAttribute(new Attribute("Optional", "false"));<a name="line.118"></a>
<span class="sourceLineNo">119</span> }<a name="line.119"></a>
<span class="sourceLineNo">120</span><a name="line.120"></a>
<span class="sourceLineNo">121</span> if (m_dependencies[i].isMultiple()) {<a name="line.121"></a>
<span class="sourceLineNo">122</span> dep.addAttribute(new Attribute("Aggregate", "true"));<a name="line.122"></a>
<span class="sourceLineNo">123</span> } else {<a name="line.123"></a>
<span class="sourceLineNo">124</span> dep.addAttribute(new Attribute("Aggregate", "false"));<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> if (m_dependencies[i].isProxy()) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> dep.addAttribute(new Attribute("Proxy", "true"));<a name="line.128"></a>
<span class="sourceLineNo">129</span> } else {<a name="line.129"></a>
<span class="sourceLineNo">130</span> dep.addAttribute(new Attribute("Proxy", "false"));<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> String policy = "dynamic";<a name="line.133"></a>
<span class="sourceLineNo">134</span> if (m_dependencies[i].getPolicy() == DependencyModel.STATIC_BINDING_POLICY) {<a name="line.134"></a>
<span class="sourceLineNo">135</span> policy = "static";<a name="line.135"></a>
<span class="sourceLineNo">136</span> } else if (m_dependencies[i].getPolicy() == DependencyModel.DYNAMIC_PRIORITY_BINDING_POLICY) {<a name="line.136"></a>
<span class="sourceLineNo">137</span> policy = "dynamic-priority";<a name="line.137"></a>
<span class="sourceLineNo">138</span> }<a name="line.138"></a>
<span class="sourceLineNo">139</span> dep.addAttribute(new Attribute("Binding-Policy", policy));<a name="line.139"></a>
<span class="sourceLineNo">140</span> <a name="line.140"></a>
<span class="sourceLineNo">141</span> if (m_dependencies[i].getComparator() != null) {<a name="line.141"></a>
<span class="sourceLineNo">142</span> dep.addAttribute(new Attribute("Comparator", m_dependencies[i].getComparator()));<a name="line.142"></a>
<span class="sourceLineNo">143</span> }<a name="line.143"></a>
<span class="sourceLineNo">144</span> <a name="line.144"></a>
<span class="sourceLineNo">145</span> dep.addAttribute(new Attribute("State", state));<a name="line.145"></a>
<span class="sourceLineNo">146</span> List&lt;ServiceReference&gt; set = m_dependencies[i].getUsedServices();<a name="line.146"></a>
<span class="sourceLineNo">147</span> if (set != null) {<a name="line.147"></a>
<span class="sourceLineNo">148</span> for (ServiceReference ref : set) {<a name="line.148"></a>
<span class="sourceLineNo">149</span> Element use = new Element("Uses", "");<a name="line.149"></a>
<span class="sourceLineNo">150</span> use.addAttribute(new Attribute(Constants.SERVICE_ID, ref.getProperty(Constants.SERVICE_ID).toString()));<a name="line.150"></a>
<span class="sourceLineNo">151</span> String instance = (String) ref.getProperty(Factory.INSTANCE_NAME_PROPERTY);<a name="line.151"></a>
<span class="sourceLineNo">152</span> if (instance != null) {<a name="line.152"></a>
<span class="sourceLineNo">153</span> use.addAttribute(new Attribute(Factory.INSTANCE_NAME_PROPERTY, instance));<a name="line.153"></a>
<span class="sourceLineNo">154</span> }<a name="line.154"></a>
<span class="sourceLineNo">155</span> dep.addElement(use);<a name="line.155"></a>
<span class="sourceLineNo">156</span> }<a name="line.156"></a>
<span class="sourceLineNo">157</span> }<a name="line.157"></a>
<span class="sourceLineNo">158</span><a name="line.158"></a>
<span class="sourceLineNo">159</span> set = m_dependencies[i].getServiceReferences();<a name="line.159"></a>
<span class="sourceLineNo">160</span> if (set != null) {<a name="line.160"></a>
<span class="sourceLineNo">161</span> for (ServiceReference ref : set) {<a name="line.161"></a>
<span class="sourceLineNo">162</span> Element use = new Element("Selected", "");<a name="line.162"></a>
<span class="sourceLineNo">163</span> use.addAttribute(new Attribute(Constants.SERVICE_ID, ref.getProperty(Constants.SERVICE_ID).toString()));<a name="line.163"></a>
<span class="sourceLineNo">164</span> String instance = (String) ref.getProperty(Factory.INSTANCE_NAME_PROPERTY);<a name="line.164"></a>
<span class="sourceLineNo">165</span> if (instance != null) {<a name="line.165"></a>
<span class="sourceLineNo">166</span> use.addAttribute(new Attribute(Factory.INSTANCE_NAME_PROPERTY, instance));<a name="line.166"></a>
<span class="sourceLineNo">167</span> }<a name="line.167"></a>
<span class="sourceLineNo">168</span> dep.addElement(use);<a name="line.168"></a>
<span class="sourceLineNo">169</span> }<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span> if (m_dependencies[i].getDependency() != null) {<a name="line.172"></a>
<span class="sourceLineNo">173</span> set = m_dependencies[i].getDependency().getServiceReferenceManager().getMatchingServices();<a name="line.173"></a>
<span class="sourceLineNo">174</span> if (set != null) {<a name="line.174"></a>
<span class="sourceLineNo">175</span> for (ServiceReference ref : set) {<a name="line.175"></a>
<span class="sourceLineNo">176</span> Element use = new Element("Matches", "");<a name="line.176"></a>
<span class="sourceLineNo">177</span> use.addAttribute(new Attribute(Constants.SERVICE_ID, ref.getProperty(Constants.SERVICE_ID).toString()));<a name="line.177"></a>
<span class="sourceLineNo">178</span> String instance = (String) ref.getProperty(Factory.INSTANCE_NAME_PROPERTY);<a name="line.178"></a>
<span class="sourceLineNo">179</span> if (instance != null) {<a name="line.179"></a>
<span class="sourceLineNo">180</span> use.addAttribute(new Attribute(Factory.INSTANCE_NAME_PROPERTY, instance));<a name="line.180"></a>
<span class="sourceLineNo">181</span> }<a name="line.181"></a>
<span class="sourceLineNo">182</span> dep.addElement(use);<a name="line.182"></a>
<span class="sourceLineNo">183</span> }<a name="line.183"></a>
<span class="sourceLineNo">184</span> }<a name="line.184"></a>
<span class="sourceLineNo">185</span> }<a name="line.185"></a>
<span class="sourceLineNo">186</span><a name="line.186"></a>
<span class="sourceLineNo">187</span> deps.addElement(dep);<a name="line.187"></a>
<span class="sourceLineNo">188</span> }<a name="line.188"></a>
<span class="sourceLineNo">189</span> return deps;<a name="line.189"></a>
<span class="sourceLineNo">190</span> }<a name="line.190"></a>
<span class="sourceLineNo">191</span><a name="line.191"></a>
<span class="sourceLineNo">192</span>}<a name="line.192"></a>
</pre>
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