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package org.mule.util.counters.impl; |
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import org.mule.util.counters.CounterFactory.Type; |
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public class InstantRate extends AggregateCounter |
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{ |
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private double firstTime; |
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private double lastTime; |
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private double value; |
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public InstantRate(String name, AbstractCounter base) |
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{ |
20 | 0 | super(name, Type.INSTANT_RATE, base); |
21 | 0 | } |
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public double nextValue() |
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{ |
25 | 0 | if (firstTime == 0 || firstTime == lastTime) |
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{ |
27 | 0 | return Double.NaN; |
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} |
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else |
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{ |
31 | 0 | return value / (lastTime - firstTime) * 1000.0; |
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} |
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} |
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public void doCompute() |
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{ |
37 | 0 | firstTime = lastTime; |
38 | 0 | lastTime = System.currentTimeMillis(); |
39 | 0 | value = getBase().nextValue(); |
40 | 0 | } |
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} |