package org.stagemonitor.os.metrics;
import static org.stagemonitor.core.metrics.metrics2.MetricName.name;
import java.util.HashMap;
import java.util.Map;
import com.codahale.metrics.Gauge;
import com.codahale.metrics.Metric;
import com.codahale.metrics.RatioGauge;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.Swap;
import org.stagemonitor.core.metrics.metrics2.MetricName;
public class SwapMetricSet extends AbstractSigarMetricSet<Swap> {
public SwapMetricSet(Sigar sigar) throws SigarException{
super(sigar);
}
@Override
Swap loadSnapshot(Sigar sigar) throws SigarException {
return sigar.getSwap();
}
@Override
public Map<MetricName, Metric> getMetrics() {
Map<MetricName, Metric> metrics = new HashMap<MetricName, Metric>();
metrics.put(name("swap_usage").type("free").build(), new Gauge<Long>() {
@Override
public Long getValue() {
return getSnapshot().getFree();
}
});
metrics.put(name("swap_usage").type("used").build(), new Gauge<Long>() {
@Override
public Long getValue() {
return getSnapshot().getUsed();
}
});
metrics.put(name("swap_usage").type("total").build(), new Gauge<Long>() {
@Override
public Long getValue() {
return getSnapshot().getTotal();
}
});
metrics.put(name("swap_usage_percent").build(), new RatioGauge() {
@Override
protected Ratio getRatio() {
return Ratio.of(getSnapshot().getUsed(), getSnapshot().getTotal() * 100.0);
}
});
metrics.put(name("swap_pages").type("in").build(), new Gauge<Long>() {
@Override
public Long getValue() {
return getSnapshot().getPageIn();
}
});
metrics.put(name("swap_pages").type("out").build(), new Gauge<Long>() {
@Override
public Long getValue() {
return getSnapshot().getPageOut();
}
});
return metrics;
}
}