102 lines
2.5 KiB
Java
102 lines
2.5 KiB
Java
package org.sysmon.plugins.sysmon_linux;
|
|
|
|
import org.pf4j.Extension;
|
|
import org.sysmon.shared.MetricExtension;
|
|
import org.sysmon.shared.MetricMeasurement;
|
|
import org.sysmon.shared.MetricResult;
|
|
|
|
import java.io.IOException;
|
|
import java.nio.charset.StandardCharsets;
|
|
import java.nio.file.Files;
|
|
import java.nio.file.Paths;
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
|
|
@Extension
|
|
public class LinuxDiskExtension implements MetricExtension {
|
|
|
|
private List<LinuxDiskStat> currentDiskStats;
|
|
private List<LinuxDiskStat> previousDiskStats;
|
|
|
|
@Override
|
|
public boolean isSupported() {
|
|
return System.getProperty("os.name").toLowerCase().contains("linux");
|
|
}
|
|
|
|
@Override
|
|
public String getName() {
|
|
return "linux-disk";
|
|
}
|
|
|
|
@Override
|
|
public String getDescription() {
|
|
return "Linux Disk Metrics";
|
|
}
|
|
|
|
@Override
|
|
public MetricResult getMetrics() {
|
|
|
|
MetricResult result = new MetricResult("disk");
|
|
try {
|
|
copyCurrentValues();
|
|
readProcFile();
|
|
result.setMetricMeasurementList(calculate());
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
private void readProcFile() throws IOException {
|
|
|
|
currentDiskStats = new ArrayList<>();
|
|
List<String> allLines = Files.readAllLines(Paths.get("/proc/diskstats"), StandardCharsets.UTF_8);
|
|
for(String line : allLines) {
|
|
currentDiskStats.add(new LinuxDiskStat(line));
|
|
}
|
|
|
|
}
|
|
|
|
|
|
private void copyCurrentValues() {
|
|
|
|
if(currentDiskStats != null && currentDiskStats.size() > 0) {
|
|
previousDiskStats = new ArrayList<>(currentDiskStats);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
private List<MetricMeasurement> calculate() {
|
|
|
|
List<MetricMeasurement> measurementList = new ArrayList<>();
|
|
|
|
if(previousDiskStats == null || previousDiskStats.size() != currentDiskStats.size()) {
|
|
return measurementList;
|
|
}
|
|
|
|
|
|
for(int i = 0; i < currentDiskStats.size(); i++) {
|
|
|
|
LinuxDiskStat curStat = currentDiskStats.get(i);
|
|
LinuxDiskStat preStat = previousDiskStats.get(i);
|
|
|
|
if(curStat.getDevice().startsWith("loop")) {
|
|
continue;
|
|
}
|
|
|
|
long timeSpendDoingIo = curStat.getTimeSpentOnIo() - preStat.getTimeSpentOnIo();
|
|
|
|
// TODO: Calculate differences for wanted disk io stats
|
|
measurementList.add(new MetricMeasurement(curStat.getDevice() + "-iotime", timeSpendDoingIo));
|
|
|
|
}
|
|
|
|
return measurementList;
|
|
}
|
|
|
|
}
|