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package org.glassfish.external.statistics.impl;
import org.glassfish.external.statistics.StringStatistic;
import java.util.Map;
import java.lang.reflect.*;
/**
* @author Sreenivas Munnangi
*/
public final class StringStatisticImpl extends StatisticImpl
implements StringStatistic, InvocationHandler {
private volatile String str = null;
private final String initStr;
private final StringStatistic ss =
(StringStatistic) Proxy.newProxyInstance(
StringStatistic.class.getClassLoader(),
new Class[] { StringStatistic.class },
this);
public StringStatisticImpl(String str, String name, String unit,
String desc, long sampleTime, long startTime) {
super(name, unit, desc, startTime, sampleTime);
this.str = str;
initStr = str;
}
public StringStatisticImpl(String name, String unit, String desc) {
this("", name, unit, desc, System.currentTimeMillis(), System.currentTimeMillis());
}
public synchronized StringStatistic getStatistic() {
return ss;
}
public synchronized Map getStaticAsMap() {
Map m = super.getStaticAsMap();
if (getCurrent() != null) {
m.put("current", getCurrent());
}
return m;
}
public synchronized String toString() {
return super.toString() + NEWLINE + "Current-value: " + getCurrent();
}
public String getCurrent() {
return str;
}
public void setCurrent(String str) {
this.str = str;
sampleTime = System.currentTimeMillis();
}
@Override
public synchronized void reset() {
super.reset();
this.str = initStr;
sampleTime = -1L;
}
// todo: equals implementation
public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
checkMethod(m);
Object result;
try {
result = m.invoke(this, args);
} catch (InvocationTargetException e) {
throw e.getTargetException();
} catch (Exception e) {
throw new RuntimeException("unexpected invocation exception: " +
e.getMessage());
}
return result;
}
}
