protected Object doExecute() throws Exception {
int maxNameLen;
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
ThreadMXBean threads = ManagementFactory.getThreadMXBean();
MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean();
//
// print Karaf informations
//
maxNameLen = 25;
System.out.println("Karaf");
printValue("Karaf version", maxNameLen, System.getProperty("karaf.version"));
printValue("Karaf home", maxNameLen, System.getProperty("karaf.home"));
printValue("Karaf base", maxNameLen, System.getProperty("karaf.base"));
printValue("Karaf etc", maxNameLen, System.getProperty("karaf.etc"));
printValue("OSGi Framework", maxNameLen, bundleContext.getBundle(0).getSymbolicName() + " - " +
bundleContext.getBundle(0).getVersion());
System.out.println();
System.out.println("JVM");
printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
printValue("Version", maxNameLen, System.getProperty("java.version"));
printValue("Vendor", maxNameLen, runtime.getVmVendor());
printValue("Pid", maxNameLen, getPid());
printValue("Uptime", maxNameLen, printDuration(runtime.getUptime()));
try {
printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000));
} catch (Throwable t) {
}
printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));
System.out.println("Threads");
printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));
System.out.println("Memory");
printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
printValue("Pending objects", maxNameLen, Integer.toString(mem.getObjectPendingFinalizationCount()));
for (GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
String val = "Name = '" + gc.getName() + "', Collections = " + gc.getCollectionCount() + ", Time = " + printDuration(gc.getCollectionTime());
printValue("Garbage collector", maxNameLen, val);
}
System.out.println("Classes");
printValue("Current classes loaded", maxNameLen, printLong(cl.getLoadedClassCount()));
printValue("Total classes loaded", maxNameLen, printLong(cl.getTotalLoadedClassCount()));
printValue("Total classes unloaded", maxNameLen, printLong(cl.getUnloadedClassCount()));
System.out.println("Operating system");
printValue("Name", maxNameLen, os.getName() + " version " + os.getVersion());
printValue("Architecture", maxNameLen, os.getArch());
printValue("Processors", maxNameLen, Integer.toString(os.getAvailableProcessors()));
try {
printValue("Total physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalPhysicalMemorySize")));
printValue("Free physical memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getFreePhysicalMemorySize")));
printValue("Committed virtual memory", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getCommittedVirtualMemorySize")));
printValue("Total swap space", maxNameLen, printSizeInKb(getSunOsValueAsLong(os, "getTotalSwapSpaceSize")));