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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Cobertura - http://cobertura.sourceforge.net/<a name="line.2"></a>
<span class="sourceLineNo">003</span> *<a name="line.3"></a>
<span class="sourceLineNo">004</span> * Copyright (C) 2006 Jiri Mares<a name="line.4"></a>
<span class="sourceLineNo">005</span> *<a name="line.5"></a>
<span class="sourceLineNo">006</span> * Cobertura is free software; you can redistribute it and/or modify<a name="line.6"></a>
<span class="sourceLineNo">007</span> * it under the terms of the GNU General Public License as published<a name="line.7"></a>
<span class="sourceLineNo">008</span> * by the Free Software Foundation; either version 2 of the License,<a name="line.8"></a>
<span class="sourceLineNo">009</span> * or (at your option) any later version.<a name="line.9"></a>
<span class="sourceLineNo">010</span> *<a name="line.10"></a>
<span class="sourceLineNo">011</span> * Cobertura is distributed in the hope that it will be useful, but<a name="line.11"></a>
<span class="sourceLineNo">012</span> * WITHOUT ANY WARRANTY; without even the implied warranty of<a name="line.12"></a>
<span class="sourceLineNo">013</span> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU<a name="line.13"></a>
<span class="sourceLineNo">014</span> * General Public License for more details.<a name="line.14"></a>
<span class="sourceLineNo">015</span> *<a name="line.15"></a>
<span class="sourceLineNo">016</span> * You should have received a copy of the GNU General Public License<a name="line.16"></a>
<span class="sourceLineNo">017</span> * along with Cobertura; if not, write to the Free Software<a name="line.17"></a>
<span class="sourceLineNo">018</span> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307<a name="line.18"></a>
<span class="sourceLineNo">019</span> * USA<a name="line.19"></a>
<span class="sourceLineNo">020</span> */<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>package net.sourceforge.cobertura.coveragedata;<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.io.ObjectInputStream;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.io.Serializable;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.util.concurrent.locks.Lock;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>/**<a name="line.30"></a>
<span class="sourceLineNo">031</span> * <p><a name="line.31"></a>
<span class="sourceLineNo">032</span> * This class implements HasBeenInstrumented so that when cobertura instruments<a name="line.32"></a>
<span class="sourceLineNo">033</span> * itself, it will omit this class. It does this to avoid an infinite recursion<a name="line.33"></a>
<span class="sourceLineNo">034</span> * problem because instrumented classes make use of this class.<a name="line.34"></a>
<span class="sourceLineNo">035</span> * </p><a name="line.35"></a>
<span class="sourceLineNo">036</span> */<a name="line.36"></a>
<span class="sourceLineNo">037</span>public class JumpData implements BranchCoverageData, Comparable, Serializable,<a name="line.37"></a>
<span class="sourceLineNo">038</span> HasBeenInstrumented<a name="line.38"></a>
<span class="sourceLineNo">039</span>{<a name="line.39"></a>
<span class="sourceLineNo">040</span> private static final long serialVersionUID = 8;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span> protected transient Lock lock;<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span> private int conditionNumber;<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span> private long trueHits;<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span> private long falseHits;<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span> JumpData(int conditionNumber)<a name="line.50"></a>
<span class="sourceLineNo">051</span> {<a name="line.51"></a>
<span class="sourceLineNo">052</span> super();<a name="line.52"></a>
<span class="sourceLineNo">053</span> this.conditionNumber = conditionNumber;<a name="line.53"></a>
<span class="sourceLineNo">054</span> this.trueHits = 0L;<a name="line.54"></a>
<span class="sourceLineNo">055</span> this.falseHits = 0L;<a name="line.55"></a>
<span class="sourceLineNo">056</span> initLock();<a name="line.56"></a>
<span class="sourceLineNo">057</span> }<a name="line.57"></a>
<span class="sourceLineNo">058</span> <a name="line.58"></a>
<span class="sourceLineNo">059</span> private void initLock()<a name="line.59"></a>
<span class="sourceLineNo">060</span> {<a name="line.60"></a>
<span class="sourceLineNo">061</span> lock = new ReentrantLock();<a name="line.61"></a>
<span class="sourceLineNo">062</span> }<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span> public int compareTo(Object o)<a name="line.64"></a>
<span class="sourceLineNo">065</span> {<a name="line.65"></a>
<span class="sourceLineNo">066</span> if (!o.getClass().equals(JumpData.class))<a name="line.66"></a>
<span class="sourceLineNo">067</span> return Integer.MAX_VALUE;<a name="line.67"></a>
<span class="sourceLineNo">068</span> return this.conditionNumber - ((JumpData) o).conditionNumber;<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> void touchBranch(boolean branch,int new_hits)<a name="line.71"></a>
<span class="sourceLineNo">072</span> {<a name="line.72"></a>
<span class="sourceLineNo">073</span> lock.lock();<a name="line.73"></a>
<span class="sourceLineNo">074</span> try<a name="line.74"></a>
<span class="sourceLineNo">075</span> {<a name="line.75"></a>
<span class="sourceLineNo">076</span> if (branch)<a name="line.76"></a>
<span class="sourceLineNo">077</span> {<a name="line.77"></a>
<span class="sourceLineNo">078</span> this.trueHits+=new_hits;<a name="line.78"></a>
<span class="sourceLineNo">079</span> }<a name="line.79"></a>
<span class="sourceLineNo">080</span> else<a name="line.80"></a>
<span class="sourceLineNo">081</span> {<a name="line.81"></a>
<span class="sourceLineNo">082</span> this.falseHits+=new_hits;<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> finally<a name="line.85"></a>
<span class="sourceLineNo">086</span> {<a name="line.86"></a>
<span class="sourceLineNo">087</span> lock.unlock();<a name="line.87"></a>
<span class="sourceLineNo">088</span> }<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> public int getConditionNumber()<a name="line.91"></a>
<span class="sourceLineNo">092</span> {<a name="line.92"></a>
<span class="sourceLineNo">093</span> return this.conditionNumber;<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> public long getTrueHits()<a name="line.96"></a>
<span class="sourceLineNo">097</span> {<a name="line.97"></a>
<span class="sourceLineNo">098</span> lock.lock();<a name="line.98"></a>
<span class="sourceLineNo">099</span> try<a name="line.99"></a>
<span class="sourceLineNo">100</span> {<a name="line.100"></a>
<span class="sourceLineNo">101</span> return this.trueHits;<a name="line.101"></a>
<span class="sourceLineNo">102</span> }<a name="line.102"></a>
<span class="sourceLineNo">103</span> finally<a name="line.103"></a>
<span class="sourceLineNo">104</span> {<a name="line.104"></a>
<span class="sourceLineNo">105</span> lock.unlock();<a name="line.105"></a>
<span class="sourceLineNo">106</span> }<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> public long getFalseHits()<a name="line.109"></a>
<span class="sourceLineNo">110</span> {<a name="line.110"></a>
<span class="sourceLineNo">111</span> lock.lock();<a name="line.111"></a>
<span class="sourceLineNo">112</span> try<a name="line.112"></a>
<span class="sourceLineNo">113</span> {<a name="line.113"></a>
<span class="sourceLineNo">114</span> return this.falseHits;<a name="line.114"></a>
<span class="sourceLineNo">115</span> }<a name="line.115"></a>
<span class="sourceLineNo">116</span> finally<a name="line.116"></a>
<span class="sourceLineNo">117</span> {<a name="line.117"></a>
<span class="sourceLineNo">118</span> lock.unlock();<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><a name="line.121"></a>
<span class="sourceLineNo">122</span> public double getBranchCoverageRate()<a name="line.122"></a>
<span class="sourceLineNo">123</span> {<a name="line.123"></a>
<span class="sourceLineNo">124</span> lock.lock();<a name="line.124"></a>
<span class="sourceLineNo">125</span> try<a name="line.125"></a>
<span class="sourceLineNo">126</span> {<a name="line.126"></a>
<span class="sourceLineNo">127</span> return ((double) getNumberOfCoveredBranches()) / getNumberOfValidBranches();<a name="line.127"></a>
<span class="sourceLineNo">128</span> }<a name="line.128"></a>
<span class="sourceLineNo">129</span> finally<a name="line.129"></a>
<span class="sourceLineNo">130</span> {<a name="line.130"></a>
<span class="sourceLineNo">131</span> lock.unlock();<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> public boolean equals(Object obj)<a name="line.135"></a>
<span class="sourceLineNo">136</span> {<a name="line.136"></a>
<span class="sourceLineNo">137</span> if (this == obj)<a name="line.137"></a>
<span class="sourceLineNo">138</span> return true;<a name="line.138"></a>
<span class="sourceLineNo">139</span> if ((obj == null) || !(obj.getClass().equals(this.getClass())))<a name="line.139"></a>
<span class="sourceLineNo">140</span> return false;<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> JumpData branchData = (JumpData) obj;<a name="line.142"></a>
<span class="sourceLineNo">143</span> getBothLocks(branchData);<a name="line.143"></a>
<span class="sourceLineNo">144</span> try<a name="line.144"></a>
<span class="sourceLineNo">145</span> {<a name="line.145"></a>
<span class="sourceLineNo">146</span> return (this.trueHits == branchData.trueHits)<a name="line.146"></a>
<span class="sourceLineNo">147</span> && (this.falseHits == branchData.falseHits)<a name="line.147"></a>
<span class="sourceLineNo">148</span> && (this.conditionNumber == branchData.conditionNumber);<a name="line.148"></a>
<span class="sourceLineNo">149</span> }<a name="line.149"></a>
<span class="sourceLineNo">150</span> finally<a name="line.150"></a>
<span class="sourceLineNo">151</span> {<a name="line.151"></a>
<span class="sourceLineNo">152</span> lock.unlock();<a name="line.152"></a>
<span class="sourceLineNo">153</span> branchData.lock.unlock();<a name="line.153"></a>
<span class="sourceLineNo">154</span> }<a name="line.154"></a>
<span class="sourceLineNo">155</span> }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span> public int hashCode()<a name="line.157"></a>
<span class="sourceLineNo">158</span> {<a name="line.158"></a>
<span class="sourceLineNo">159</span> return this.conditionNumber;<a name="line.159"></a>
<span class="sourceLineNo">160</span> }<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span> public int getNumberOfCoveredBranches()<a name="line.162"></a>
<span class="sourceLineNo">163</span> {<a name="line.163"></a>
<span class="sourceLineNo">164</span> lock.lock();<a name="line.164"></a>
<span class="sourceLineNo">165</span> try<a name="line.165"></a>
<span class="sourceLineNo">166</span> {<a name="line.166"></a>
<span class="sourceLineNo">167</span> return ((trueHits > 0) ? 1 : 0) + ((falseHits > 0) ? 1: 0);<a name="line.167"></a>
<span class="sourceLineNo">168</span> }<a name="line.168"></a>
<span class="sourceLineNo">169</span> finally<a name="line.169"></a>
<span class="sourceLineNo">170</span> {<a name="line.170"></a>
<span class="sourceLineNo">171</span> lock.unlock();<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> public int getNumberOfValidBranches()<a name="line.175"></a>
<span class="sourceLineNo">176</span> {<a name="line.176"></a>
<span class="sourceLineNo">177</span> return 2;<a name="line.177"></a>
<span class="sourceLineNo">178</span> }<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span> public void merge(BranchCoverageData coverageData)<a name="line.180"></a>
<span class="sourceLineNo">181</span> {<a name="line.181"></a>
<span class="sourceLineNo">182</span> JumpData jumpData = (JumpData) coverageData;<a name="line.182"></a>
<span class="sourceLineNo">183</span> getBothLocks(jumpData);<a name="line.183"></a>
<span class="sourceLineNo">184</span> try<a name="line.184"></a>
<span class="sourceLineNo">185</span> {<a name="line.185"></a>
<span class="sourceLineNo">186</span> this.trueHits += jumpData.trueHits;<a name="line.186"></a>
<span class="sourceLineNo">187</span> this.falseHits += jumpData.falseHits;<a name="line.187"></a>
<span class="sourceLineNo">188</span> }<a name="line.188"></a>
<span class="sourceLineNo">189</span> finally<a name="line.189"></a>
<span class="sourceLineNo">190</span> {<a name="line.190"></a>
<span class="sourceLineNo">191</span> lock.unlock();<a name="line.191"></a>
<span class="sourceLineNo">192</span> jumpData.lock.unlock();<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><a name="line.195"></a>
<span class="sourceLineNo">196</span> private void getBothLocks(JumpData other) {<a name="line.196"></a>
<span class="sourceLineNo">197</span> /*<a name="line.197"></a>
<span class="sourceLineNo">198</span> * To prevent deadlock, we need to get both locks or none at all.<a name="line.198"></a>
<span class="sourceLineNo">199</span> * <a name="line.199"></a>
<span class="sourceLineNo">200</span> * When this method returns, the thread will have both locks.<a name="line.200"></a>
<span class="sourceLineNo">201</span> * Make sure you unlock them!<a name="line.201"></a>
<span class="sourceLineNo">202</span> */<a name="line.202"></a>
<span class="sourceLineNo">203</span> boolean myLock = false;<a name="line.203"></a>
<span class="sourceLineNo">204</span> boolean otherLock = false;<a name="line.204"></a>
<span class="sourceLineNo">205</span> while ((!myLock) || (!otherLock))<a name="line.205"></a>
<span class="sourceLineNo">206</span> {<a name="line.206"></a>
<span class="sourceLineNo">207</span> try<a name="line.207"></a>
<span class="sourceLineNo">208</span> {<a name="line.208"></a>
<span class="sourceLineNo">209</span> myLock = lock.tryLock();<a name="line.209"></a>
<span class="sourceLineNo">210</span> otherLock = other.lock.tryLock();<a name="line.210"></a>
<span class="sourceLineNo">211</span> }<a name="line.211"></a>
<span class="sourceLineNo">212</span> finally<a name="line.212"></a>
<span class="sourceLineNo">213</span> {<a name="line.213"></a>
<span class="sourceLineNo">214</span> if ((!myLock) || (!otherLock))<a name="line.214"></a>
<span class="sourceLineNo">215</span> {<a name="line.215"></a>
<span class="sourceLineNo">216</span> //could not obtain both locks - so unlock the one we got.<a name="line.216"></a>
<span class="sourceLineNo">217</span> if (myLock)<a name="line.217"></a>
<span class="sourceLineNo">218</span> {<a name="line.218"></a>
<span class="sourceLineNo">219</span> lock.unlock();<a name="line.219"></a>
<span class="sourceLineNo">220</span> }<a name="line.220"></a>
<span class="sourceLineNo">221</span> if (otherLock)<a name="line.221"></a>
<span class="sourceLineNo">222</span> {<a name="line.222"></a>
<span class="sourceLineNo">223</span> other.lock.unlock();<a name="line.223"></a>
<span class="sourceLineNo">224</span> }<a name="line.224"></a>
<span class="sourceLineNo">225</span> //do a yield so the other threads will get to work.<a name="line.225"></a>
<span class="sourceLineNo">226</span> Thread.yield();<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> }<a name="line.229"></a>
<span class="sourceLineNo">230</span> }<a name="line.230"></a>
<span class="sourceLineNo">231</span> <a name="line.231"></a>
<span class="sourceLineNo">232</span> private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException<a name="line.232"></a>
<span class="sourceLineNo">233</span> {<a name="line.233"></a>
<span class="sourceLineNo">234</span> in.defaultReadObject();<a name="line.234"></a>
<span class="sourceLineNo">235</span> initLock();<a name="line.235"></a>
<span class="sourceLineNo">236</span> }<a name="line.236"></a>
<span class="sourceLineNo">237</span><a name="line.237"></a>
<span class="sourceLineNo">238</span>}<a name="line.238"></a>
</pre>
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