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package cdc.perfs.core.snapshot;

import cdc.perfs.api.MeasureLevel;
import cdc.perfs.api.Source;
import cdc.perfs.core.Measure;
import cdc.perfs.core.MeasureStatus;
import cdc.perfs.core.impl.AbstractMeasure;
import cdc.perfs.core.impl.SourceImpl;

public final class SnapshotMeasure extends AbstractMeasure {
    protected SnapshotMeasure(Measure measure,
                              SnapshotMeasure parent,
                              SnapshotMeasure previous,
                              SnapshotContext context) {
        super(parent,
                previous,
                (SourceImpl) context.getEnvironment().getSource(measure.getSource().getName()),
                measure.getDetails(),
                measure.getAbsoluteBeginNanos(),
                measure.getAbsoluteEndNanos(),
                measure.getStatus(),
                measure.getLevel(),
                context);
    }

    SnapshotMeasure(SnapshotMeasure parent,
                    SnapshotMeasure previous,
                    Source source,
                    String details,
                    long begin,
                    long end,
                    MeasureStatus status,
                    MeasureLevel level,
                    SnapshotContext context) {
        super(parent,
                previous,
                (SourceImpl) source,
                details,
                begin,
                end,
                status,
                level,
                context);
    }

    @Override
    public final long getElapsedNanos() {
        if (getStatus() == MeasureStatus.RUNNING) {
            return getEnvironment().getCurrentNanos() - begin;
        } else {
            return end - begin;
        }
    }
}