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package org.gnunet.statistics;
import org.gnunet.util.Program;
import org.gnunet.util.RelativeTime;
import org.gnunet.util.getopt.Argument;
import org.gnunet.util.getopt.ArgumentAction;
/**
* Entry point for and implementation of the gnunet-statistics-java tool.
*/
public class StatisticsTool extends Program {
@Argument(
shortname = "x",
longname = "set",
action = ArgumentAction.SET,
description = "set a value")
boolean set;
@Argument(
shortname = "w",
longname = "watch",
action = ArgumentAction.SET,
description = "watch a value")
boolean watch;
@Argument(
shortname = "n",
longname = "name",
action = ArgumentAction.STORE_STRING,
argumentName = "NAME",
description = "statistics name")
String statisticsName = "";
@Argument(
shortname = "s",
longname = "subsystem",
argumentName = "SUBSYS",
action = ArgumentAction.STORE_STRING,
description = "subsystem name")
String subsystemName = "";
@Argument(
shortname = "p",
longname = "persistent",
action = ArgumentAction.SET,
description = "set value persistently (used with -x)")
boolean persistent = false;
@Argument(
shortname = "r",
longname = "relative",
action = ArgumentAction.SET,
description = "set value relative to old value (used with -x)")
boolean relative = false;
/**
* The handle to the statistics service.
*/
Statistics statistics;
/**
* Statistics command line utility entry point
*
* @param args command line arguments
*/
public static void main(String[] args) {
StatisticsTool statisticsTool = new StatisticsTool();
int ret = statisticsTool.start(args);
System.exit(ret);
}
@Override
protected String makeHelpText() {
return "Get, set and watch GNUnet's statistics.";
}
public void run() {
if (set && watch) {
System.err.println("--watch/-w and --set/-s cannot be used together");
return;
}
if (set) {
if (subsystemName.isEmpty() || statisticsName.isEmpty()) {
System.err.println("both subsystem and name must be given for --set/-x");
return;
}
if (unprocessedArgs.length != 1) {
System.err.println("must specify exactly one value to set");
return;
}
long value;
try {
value = Long.parseLong(unprocessedArgs[0]);
} catch (NumberFormatException e) {
System.err.println("invalid value (not a long)");
return;
}
statistics = new Statistics(cfg);
if (relative)
statistics.update(subsystemName, statisticsName, value, persistent);
else
statistics.set(subsystemName, statisticsName, value, persistent);
statistics.destroy();
return;
}
if (unprocessedArgs.length != 0) {
System.err.println("watching or reading statistics does not take any positional parameters");
return;
}
if (watch) {
if (subsystemName.isEmpty() || statisticsName.isEmpty()) {
System.err.println("both subsystem and name must be given for --watch/-w");
return;
}
statistics = new Statistics(cfg);
statistics.watch(subsystemName, statisticsName,
new StatisticsWatcher() {
@Override
public void onReceive(String subsystem, String name, long value) {
System.out.println(subsystem + "(" + name + ") = " + value);
}
}
);
} else {
statistics = new Statistics(cfg);
statistics.get(RelativeTime.fromSeconds(5), subsystemName, statisticsName,
new StatisticsReceiver() {
@Override
public void onReceive(String subsystem, String name, long value) {
System.out.println(subsystem + "(" + name + ") = " + value);
}
@Override
public void onTimeout() {
System.err.println("Statistics 'get' request timed out.");
statistics.destroy();
}
@Override
public void onDone() {
statistics.destroy();
}
}
);
}
}
}
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