/*
* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.management;
import sun.misc.Perf;
import sun.management.counter.*;
import java.nio.ByteBuffer;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.List;
import java.util.Arrays;
import java.util.Collections;
import java.security.AccessController;
import java.security.PrivilegedAction;
import sun.security.action.GetPropertyAction;
/**
* Implementation of VMManagement interface that accesses the management
* attributes and operations locally within the same Java virtual
* machine.
*/
class VMManagementImpl implements VMManagement {
private static String version = "1.2";
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;
// Optional supports
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 boolean isThreadContentionMonitoringEnabled() {
return false;
}
public boolean isThreadCpuTimeEnabled() {
return false;
}
// Class Loading Subsystem
public int getLoadedClassCount() {
long count = getTotalClassCount() - getUnloadedClassCount();
return (int) count;
}
public long getTotalClassCount() {
throw new Error("Not implemented");
}
public long getUnloadedClassCount() {
throw new Error("Not implemented");
}
public boolean getVerboseClass() {
return false;
}
// Memory Subsystem
public boolean getVerboseGC() {
return false;
}
// Runtime Subsystem
public String getManagementVersion() {
return version;
}
public String getVmId() {
int pid = getProcessId();
String hostname = "localhost";
try {
hostname = InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
// ignore
}
return pid + "@" + hostname;
}
private int getProcessId() {
return cli.System.Diagnostics.Process.GetCurrentProcess().get_Id();
}
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( ) {
PrivilegedAction<String> pa
= new GetPropertyAction("sun.boot.class.path");
String result = AccessController.doPrivileged(pa);
return result;
}
private List<String> vmArgs = null;
public synchronized List<String> getVmArguments() {
if (vmArgs == null) {
String[] args = getVmArguments0();
List<String> l = ((args != null && args.length != 0) ? Arrays.asList(args) :
Collections.<String>emptyList());
vmArgs = Collections.unmodifiableList(l);
}
return vmArgs;
}
public String[] getVmArguments0() {
return new String[0];
}
public long getStartupTime() {
return (long)(cli.System.Diagnostics.Process.GetCurrentProcess().get_StartTime().ToUniversalTime().Subtract(new cli.System.DateTime(1970, 1, 1))).get_TotalMilliseconds();
}
public int getAvailableProcessors() {
return cli.System.Environment.get_ProcessorCount();
}
// Compilation Subsystem
public String getCompilerName() {
String name = AccessController.doPrivileged(
new PrivilegedAction<String>() {
public String run() {
return System.getProperty("sun.management.compiler");
}
});
return name;
}
public long getTotalCompileTime() {
throw new Error("Not implemented");
}
// Thread Subsystem
public long getTotalThreadCount() {
throw new Error("Not implemented");
}
public int getLiveThreadCount() {
throw new Error("Not implemented");
}
public int getPeakThreadCount() {
throw new Error("Not implemented");
}
public int getDaemonThreadCount() {
throw new Error("Not implemented");
}
// Operating System
public String getOsName() {
return System.getProperty("os.name");
}
public String getOsArch() {
return System.getProperty("os.arch");
}
public String getOsVersion() {
return System.getProperty("os.version");
}
// Hotspot-specific runtime support
public long getSafepointCount() {
throw new Error("Not implemented");
}
public long getTotalSafepointTime() {
throw new Error("Not implemented");
}
public long getSafepointSyncTime() {
throw new Error("Not implemented");
}
public long getTotalApplicationNonStoppedTime() {
throw new Error("Not implemented");
}
public long getLoadedClassSize() {
throw new Error("Not implemented");
}
public long getUnloadedClassSize() {
throw new Error("Not implemented");
}
public long getClassLoadingTime() {
throw new Error("Not implemented");
}
public long getMethodDataSize() {
throw new Error("Not implemented");
}
public long getInitializedClassCount() {
throw new Error("Not implemented");
}
public long getClassInitializationTime() {
throw new Error("Not implemented");
}
public long getClassVerificationTime() {
throw new Error("Not implemented");
}
public List<Counter> getInternalCounters(String pattern) {
return Collections.emptyList();
}
}