package com.ajjpj.asysmon.measure.scalar;
import com.ajjpj.asysmon.data.AScalarDataPoint;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryPoolMXBean;
import java.util.Map;
/**
* @author arno
*/
public class AJmxMemMeasurer implements AScalarMeasurer {
public static final String PREFIX_MEM = "mem:";
public static final String SUFFIX_INITIAL = ":initial";
public static final String SUFFIX_COMMITTED = ":committed";
public static final String SUFFIX_MAX = ":max";
public static final String SUFFIX_USED = ":used";
@Override public void prepareMeasurements(Map<String, Object> mementos) {
}
@Override public void contributeMeasurements(Map<String, AScalarDataPoint> data, long timestamp, Map<String, Object> mementos) {
// ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
// ManagementFactory.getMemoryMXBean().getNonHeapMemoryUsage();
for (MemoryPoolMXBean mxBean : ManagementFactory.getMemoryPoolMXBeans()) {
final String prefix = PREFIX_MEM + mxBean.getName();
// mxBean.getType();
// mxBean.getCollectionUsage();
// mxBean.getPeakUsage();
putValue(data, prefix + SUFFIX_COMMITTED, timestamp, mxBean.getUsage().getCommitted());
putValue(data, prefix + SUFFIX_USED, timestamp, mxBean.getUsage().getUsed());
putValue(data, prefix + SUFFIX_INITIAL, timestamp, mxBean.getUsage().getInit());
putValue(data, prefix + SUFFIX_MAX, timestamp, mxBean.getUsage().getMax());
}
}
private void putValue(Map<String, AScalarDataPoint> data, String name, long timestamp, long value) {
if(value != -1) {
data.put(name, new AScalarDataPoint(timestamp, name, value, 0));
}
}
@Override public void shutdown() throws Exception {
}
}