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<FONT color="green">001</FONT> /*<a name="line.1"></a>
<FONT color="green">002</FONT> * Cobertura - http://cobertura.sourceforge.net/<a name="line.2"></a>
<FONT color="green">003</FONT> *<a name="line.3"></a>
<FONT color="green">004</FONT> * Copyright (C) 2010 Piotr Tabor<a name="line.4"></a>
<FONT color="green">005</FONT> *<a name="line.5"></a>
<FONT color="green">006</FONT> * Note: This file is dual licensed under the GPL and the Apache<a name="line.6"></a>
<FONT color="green">007</FONT> * Source License (so that it can be used from both the main<a name="line.7"></a>
<FONT color="green">008</FONT> * Cobertura classes and the ant tasks).<a name="line.8"></a>
<FONT color="green">009</FONT> *<a name="line.9"></a>
<FONT color="green">010</FONT> * Cobertura is free software; you can redistribute it and/or modify<a name="line.10"></a>
<FONT color="green">011</FONT> * it under the terms of the GNU General Public License as published<a name="line.11"></a>
<FONT color="green">012</FONT> * by the Free Software Foundation; either version 2 of the License,<a name="line.12"></a>
<FONT color="green">013</FONT> * or (at your option) any later version.<a name="line.13"></a>
<FONT color="green">014</FONT> *<a name="line.14"></a>
<FONT color="green">015</FONT> * Cobertura is distributed in the hope that it will be useful, but<a name="line.15"></a>
<FONT color="green">016</FONT> * WITHOUT ANY WARRANTY; without even the implied warranty of<a name="line.16"></a>
<FONT color="green">017</FONT> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU<a name="line.17"></a>
<FONT color="green">018</FONT> * General Public License for more details.<a name="line.18"></a>
<FONT color="green">019</FONT> *<a name="line.19"></a>
<FONT color="green">020</FONT> * You should have received a copy of the GNU General Public License<a name="line.20"></a>
<FONT color="green">021</FONT> * along with Cobertura; if not, write to the Free Software<a name="line.21"></a>
<FONT color="green">022</FONT> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307<a name="line.22"></a>
<FONT color="green">023</FONT> * USA<a name="line.23"></a>
<FONT color="green">024</FONT> */<a name="line.24"></a>
<FONT color="green">025</FONT> <a name="line.25"></a>
<FONT color="green">026</FONT> package net.sourceforge.cobertura.coveragedata.countermaps;<a name="line.26"></a>
<FONT color="green">027</FONT> <a name="line.27"></a>
<FONT color="green">028</FONT> import java.util.Iterator;<a name="line.28"></a>
<FONT color="green">029</FONT> import java.util.LinkedHashMap;<a name="line.29"></a>
<FONT color="green">030</FONT> import java.util.Map;<a name="line.30"></a>
<FONT color="green">031</FONT> import java.util.concurrent.ConcurrentHashMap;<a name="line.31"></a>
<FONT color="green">032</FONT> import java.util.concurrent.ConcurrentMap;<a name="line.32"></a>
<FONT color="green">033</FONT> import java.util.concurrent.atomic.AtomicInteger;<a name="line.33"></a>
<FONT color="green">034</FONT> <a name="line.34"></a>
<FONT color="green">035</FONT> import net.sourceforge.cobertura.coveragedata.HasBeenInstrumented;<a name="line.35"></a>
<FONT color="green">036</FONT> <a name="line.36"></a>
<FONT color="green">037</FONT> /**<a name="line.37"></a>
<FONT color="green">038</FONT> * Thread-safe implementation of map that counts number of keys (like multi-set)<a name="line.38"></a>
<FONT color="green">039</FONT> * @author ptab<a name="line.39"></a>
<FONT color="green">040</FONT> *<a name="line.40"></a>
<FONT color="green">041</FONT> * @param <T><a name="line.41"></a>
<FONT color="green">042</FONT> */<a name="line.42"></a>
<FONT color="green">043</FONT> public class AtomicCounterMap<T> implements CounterMap<T>,HasBeenInstrumented{<a name="line.43"></a>
<FONT color="green">044</FONT> private final ConcurrentMap<T, AtomicInteger> counters=new ConcurrentHashMap<T, AtomicInteger>();<a name="line.44"></a>
<FONT color="green">045</FONT> <a name="line.45"></a>
<FONT color="green">046</FONT> public final void incrementValue(T key, int inc){<a name="line.46"></a>
<FONT color="green">047</FONT> AtomicInteger v=counters.get(key);<a name="line.47"></a>
<FONT color="green">048</FONT> if(v!=null){<a name="line.48"></a>
<FONT color="green">049</FONT> v.addAndGet(inc);<a name="line.49"></a>
<FONT color="green">050</FONT> }else{<a name="line.50"></a>
<FONT color="green">051</FONT> v=counters.putIfAbsent(key, new AtomicInteger(inc));<a name="line.51"></a>
<FONT color="green">052</FONT> if(v!=null)v.addAndGet(inc); <a name="line.52"></a>
<FONT color="green">053</FONT> }<a name="line.53"></a>
<FONT color="green">054</FONT> }<a name="line.54"></a>
<FONT color="green">055</FONT> <a name="line.55"></a>
<FONT color="green">056</FONT> public final void incrementValue(T key){<a name="line.56"></a>
<FONT color="green">057</FONT> //AtomicInteger v=counters.putIfAbsent(key, new AtomicInteger(1));<a name="line.57"></a>
<FONT color="green">058</FONT> //return (v!=null)?v.incrementAndGet():1;<a name="line.58"></a>
<FONT color="green">059</FONT> AtomicInteger v=counters.get(key);<a name="line.59"></a>
<FONT color="green">060</FONT> if(v!=null){<a name="line.60"></a>
<FONT color="green">061</FONT> v.incrementAndGet(); <a name="line.61"></a>
<FONT color="green">062</FONT> }else{<a name="line.62"></a>
<FONT color="green">063</FONT> v=counters.putIfAbsent(key, new AtomicInteger(1));<a name="line.63"></a>
<FONT color="green">064</FONT> if(v!=null)v.incrementAndGet();<a name="line.64"></a>
<FONT color="green">065</FONT> }<a name="line.65"></a>
<FONT color="green">066</FONT> } <a name="line.66"></a>
<FONT color="green">067</FONT> <a name="line.67"></a>
<FONT color="green">068</FONT> public final int getValue(T key){<a name="line.68"></a>
<FONT color="green">069</FONT> AtomicInteger v=counters.get(key);<a name="line.69"></a>
<FONT color="green">070</FONT> return v==null?0:v.get();<a name="line.70"></a>
<FONT color="green">071</FONT> }<a name="line.71"></a>
<FONT color="green">072</FONT> <a name="line.72"></a>
<FONT color="green">073</FONT> <a name="line.73"></a>
<FONT color="green">074</FONT> public synchronized Map<T,Integer> getFinalStateAndCleanIt(){ <a name="line.74"></a>
<FONT color="green">075</FONT> Map<T,Integer> res=new LinkedHashMap<T, Integer>();<a name="line.75"></a>
<FONT color="green">076</FONT> Iterator<Map.Entry<T, AtomicInteger>> iterator=counters.entrySet().iterator();<a name="line.76"></a>
<FONT color="green">077</FONT> while (iterator.hasNext()) {<a name="line.77"></a>
<FONT color="green">078</FONT> Map.Entry<T, AtomicInteger> entry=iterator.next();<a name="line.78"></a>
<FONT color="green">079</FONT> T key=entry.getKey();<a name="line.79"></a>
<FONT color="green">080</FONT> int old=entry.getValue().get();<a name="line.80"></a>
<FONT color="green">081</FONT> iterator.remove();<a name="line.81"></a>
<FONT color="green">082</FONT> if(old>0){<a name="line.82"></a>
<FONT color="green">083</FONT> res.put(key, old);<a name="line.83"></a>
<FONT color="green">084</FONT> }<a name="line.84"></a>
<FONT color="green">085</FONT> } <a name="line.85"></a>
<FONT color="green">086</FONT> return res; <a name="line.86"></a>
<FONT color="green">087</FONT> }<a name="line.87"></a>
<FONT color="green">088</FONT> <a name="line.88"></a>
<FONT color="green">089</FONT> public int getSize(){<a name="line.89"></a>
<FONT color="green">090</FONT> return counters.size();<a name="line.90"></a>
<FONT color="green">091</FONT> }<a name="line.91"></a>
<FONT color="green">092</FONT> }<a name="line.92"></a>
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