Sky at Night 2007 June/SAN CD 6-2007 CD-ROM 25.iso/pc/Software/AstroGrav_Win/Java/jre1.6.0/lib/rt.jar/sun/management/VMManagementImpl.class

Java Class File | 2006-11-29 | 5.4 KB | 245 lines

package sun.management;

import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import java.security.AccessController;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.StringTokenizer;
import sun.management.counter.perf.PerfInstrumentation;
import sun.misc.Perf;
import sun.security.action.GetPropertyAction;

class VMManagementImpl implements VMManagement {
   private static String version = getVersion0();
   private static boolean compTimeMonitoringSupport;
   private static boolean threadContentionMonitoringSupport;
   private static boolean currentThreadCpuTimeSupport;
   private static boolean otherThreadCpuTimeSupport;
   private static boolean bootClassPathSupport;
   private static boolean objectMonitorUsageSupport;
   private static boolean synchronizerUsageSupport;
   private List<String> vmArgs = null;
   private List<String> unmodifiableVmArgsList = null;
   private PerfInstrumentation perfInstr = null;
   private boolean noPerfData = false;

   private static native String getVersion0();

   private static native void initOptionalSupportFields();

   public boolean isCompilationTimeMonitoringSupported() {
      return compTimeMonitoringSupport;
   }

   public boolean isThreadContentionMonitoringSupported() {
      return threadContentionMonitoringSupport;
   }

   public boolean isCurrentThreadCpuTimeSupported() {
      return currentThreadCpuTimeSupport;
   }

   public boolean isOtherThreadCpuTimeSupported() {
      return otherThreadCpuTimeSupport;
   }

   public boolean isBootClassPathSupported() {
      return bootClassPathSupport;
   }

   public boolean isObjectMonitorUsageSupported() {
      return objectMonitorUsageSupport;
   }

   public boolean isSynchronizerUsageSupported() {
      return synchronizerUsageSupport;
   }

   public native boolean isThreadContentionMonitoringEnabled();

   public native boolean isThreadCpuTimeEnabled();

   public int getLoadedClassCount() {
      long var1 = this.getTotalClassCount() - this.getUnloadedClassCount();
      return (int)var1;
   }

   public native long getTotalClassCount();

   public native long getUnloadedClassCount();

   public native boolean getVerboseClass();

   public native boolean getVerboseGC();

   public String getManagementVersion() {
      return version;
   }

   public String getVmId() {
      int var1 = this.getProcessId();
      String var2 = "localhost";

      try {
         var2 = InetAddress.getLocalHost().getHostName();
      } catch (UnknownHostException var4) {
      }

      return var1 + "@" + var2;
   }

   private native int getProcessId();

   public String getVmName() {
      return System.getProperty("java.vm.name");
   }

   public String getVmVendor() {
      return System.getProperty("java.vm.vendor");
   }

   public String getVmVersion() {
      return System.getProperty("java.vm.version");
   }

   public String getVmSpecName() {
      return System.getProperty("java.vm.specification.name");
   }

   public String getVmSpecVendor() {
      return System.getProperty("java.vm.specification.vendor");
   }

   public String getVmSpecVersion() {
      return System.getProperty("java.vm.specification.version");
   }

   public String getClassPath() {
      return System.getProperty("java.class.path");
   }

   public String getLibraryPath() {
      return System.getProperty("java.library.path");
   }

   public String getBootClassPath() {
      GetPropertyAction var1 = new GetPropertyAction("sun.boot.class.path");
      String var2 = (String)AccessController.doPrivileged(var1);
      return var2;
   }

   public synchronized List<String> getVmArguments() {
      if (this.vmArgs == null) {
         this.vmArgs = new ArrayList();
         String var1 = this.getVmArguments0();
         if (var1 != null) {
            StringTokenizer var2 = new StringTokenizer(var1, " ");

            while(var2.hasMoreTokens()) {
               this.vmArgs.add(var2.nextToken());
            }
         }

         this.unmodifiableVmArgsList = Collections.unmodifiableList(this.vmArgs);
      }

      return this.unmodifiableVmArgsList;
   }

   public native String getVmArguments0();

   public native long getStartupTime();

   public native int getAvailableProcessors();

   public String getCompilerName() {
      String var1 = (String)AccessController.doPrivileged(new 1(this));
      return var1;
   }

   public native long getTotalCompileTime();

   public native long getTotalThreadCount();

   public native int getLiveThreadCount();

   public native int getPeakThreadCount();

   public native int getDaemonThreadCount();

   public String getOsName() {
      return System.getProperty("os.name");
   }

   public String getOsArch() {
      return System.getProperty("os.arch");
   }

   public String getOsVersion() {
      return System.getProperty("os.version");
   }

   public native long getSafepointCount();

   public native long getTotalSafepointTime();

   public native long getSafepointSyncTime();

   public native long getTotalApplicationNonStoppedTime();

   public native long getLoadedClassSize();

   public native long getUnloadedClassSize();

   public native long getClassLoadingTime();

   public native long getMethodDataSize();

   public native long getInitializedClassCount();

   public native long getClassInitializationTime();

   public native long getClassVerificationTime();

   private synchronized PerfInstrumentation getPerfInstrumentation() {
      if (!this.noPerfData && this.perfInstr == null) {
         Perf var1 = (Perf)AccessController.doPrivileged(new Perf.GetPerfAction());

         try {
            ByteBuffer var2 = var1.attach(0, "r");
            if (var2.capacity() == 0) {
               this.noPerfData = true;
               return null;
            }

            this.perfInstr = new PerfInstrumentation(var2);
         } catch (IllegalArgumentException var3) {
            this.noPerfData = true;
         } catch (IOException var4) {
            throw new InternalError(var4.getMessage());
         }

         return this.perfInstr;
      } else {
         return this.perfInstr;
      }
   }

   public List getInternalCounters(String var1) {
      PerfInstrumentation var2 = this.getPerfInstrumentation();
      return var2 != null ? var2.findByPattern(var1) : Collections.EMPTY_LIST;
   }

   static {
      if (version == null) {
         throw new InternalError("Invalid Management Version");
      } else {
         initOptionalSupportFields();
      }
   }
}