atg.nucleus

Class VMSystem

java.lang.Object

atg.nucleus.logging.VariableArgumentApplicationLoggingImpl

atg.nucleus.GenericService

atg.nucleus.VMSystem

All Implemented Interfaces:

atg.core.logging.Logging, atg.core.logging.TraceLogging, atg.naming.AbsoluteNameable, NameContextBindingListener, NameContextElement, atg.naming.NameContextParentable, NameResolver, AdminableService, atg.nucleus.Configured, ApplicationLogging, atg.nucleus.logging.ApplicationLoggingSender, atg.nucleus.logging.TraceApplicationLogging, VariableArgumentApplicationLogging, ComponentNameResolver, Service, ServiceListener, java.util.EventListener

public class VMSystem
extends GenericService

Contains an admin interface for doing VM System-level operations: GC, finalization, listing Threads, etc.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CLASS_VERSION Class version string

Fields inherited from class atg.nucleus.GenericService

SERVICE_INFO_KEY

Fields inherited from interface atg.nucleus.logging.TraceApplicationLogging

DEFAULT_LOG_TRACE_STATUS

Fields inherited from interface atg.nucleus.logging.ApplicationLogging

DEFAULT_LOG_DEBUG_STATUS, DEFAULT_LOG_ERROR_STATUS, DEFAULT_LOG_INFO_STATUS, DEFAULT_LOG_WARNING_STATUS

Constructor Summary

Constructors

Constructor and Description
VMSystem() CONSTRUCTS A NEW VMSYSTEM

Method Summary

Modifier and Type	Method and Description
protected javax.servlet.Servlet	createAdminServlet() Creates and returns a new Servlet that will administer this service.
void	dumpThreads(java.io.PrintWriter pOut)
void	gc() Calls Runtime.gc().
java.lang.String	generateThreadDump() Generate a thread dump.
long	getFreeMemory() Returns property FreeMemory
int	getMaxFrames() Returns property maxFrames.
long	getTotalMemory() Returns property TotalMemory
void	runFinalization() Calls Runtime.runFinalization().
void	setMaxFrames(int pMaxFrames) Sets property maxFrames.
void	stopVM() Calls exit(0) to stop the VM.
java.lang.String	toString(java.lang.management.ThreadInfo pInfo) Returns a string representation of this thread info.

Methods inherited from class atg.nucleus.GenericService

addLogListener, doStartService, doStopService, getAbsoluteName, getAdminServlet, getAdminServletOutputStreamEncoding, getLoggingForVlogging, getLogListenerCount, getLogListeners, getName, getNameContext, getNucleus, getRoot, getServiceConfiguration, getServiceInfo, isAdminServletUseServletOutputStream, isLoggingDebug, isLoggingError, isLoggingInfo, isLoggingTrace, isLoggingWarning, isRunning, logDebug, logDebug, logDebug, logError, logError, logError, logInfo, logInfo, logInfo, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, nameContextElementBound, nameContextElementUnbound, removeLogListener, reResolveThis, resolveName, resolveName, resolveName, resolveName, sendLogEvent, setAdminServletOutputStreamEncoding, setAdminServletUseServletOutputStream, setLoggingDebug, setLoggingError, setLoggingInfo, setLoggingTrace, setLoggingWarning, setNucleus, setServiceInfo, startService, stopService, toString

Methods inherited from class atg.nucleus.logging.VariableArgumentApplicationLoggingImpl

vlogDebug, vlogDebug, vlogDebug, vlogDebug, vlogDebugTrace, vlogError, vlogError, vlogError, vlogError, vlogInfo, vlogInfo, vlogInfo, vlogInfo, vlogTrace, vlogTrace, vlogTrace, vlogTrace, vlogWarning, vlogWarning, vlogWarning, vlogWarning

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CLASS_VERSION

public static java.lang.String CLASS_VERSION

Class version string

Constructor Detail

VMSystem

public VMSystem()

CONSTRUCTS A NEW VMSYSTEM

Method Detail

setMaxFrames

public void setMaxFrames(int pMaxFrames)

Sets property maxFrames. The maximum number of frames to generate for each thread when dumping a stack trace.

getMaxFrames

public int getMaxFrames()

Returns property maxFrames. The maximum number of frames to generate for each thread when dumping a stack trace.

getFreeMemory

public long getFreeMemory()

Returns property FreeMemory

getTotalMemory

public long getTotalMemory()

Returns property TotalMemory

gc

public void gc()

Calls Runtime.gc().

runFinalization

public void runFinalization()

Calls Runtime.runFinalization().

stopVM

public void stopVM()

Calls exit(0) to stop the VM.

createAdminServlet

protected javax.servlet.Servlet createAdminServlet()

Creates and returns a new Servlet that will administer this service. By default, this creates a ServiceAdminServlet, but subclasses may create their own servlets.

Overrides:

createAdminServlet in class GenericService

dumpThreads

public void dumpThreads(java.io.PrintWriter pOut)

toString

public java.lang.String toString(java.lang.management.ThreadInfo pInfo)

Returns a string representation of this thread info. The format of this string depends on the implementation. The returned string will typically include the thread name, the thread ID, its state, and a stack trace if any.

Returns:

a string representation of this thread info.

generateThreadDump

public java.lang.String generateThreadDump()
                                    throws java.io.IOException

Generate a thread dump.

Returns:

the text of the thread dump.

Throws:

java.io.IOException