Class ServiceabilityAgentSupport

java.lang.Object

org.openjdk.jol.vm.sa.ServiceabilityAgentSupport

public class ServiceabilityAgentSupport
extends Object

Hotspot Serviceability Agent support.

IMPORTANT NOTE:
     On some UNIX based operating systems and MacOSX operation system, Hotspot Serviceability Agent (SA) process
     attach may fail due to insufficient privilege. So, on these operating systems, user (runs the application)
     must be super user and must be already authenticated for example with "sudo"
     command (also with password) to "/etc/sudoers" file.

     For more information about "sudo", please have a look:
         http://en.wikipedia.org/wiki/Sudo
         http://linux.about.com/od/commands/l/blcmdl8_sudo.htm

See Also:

• Task
• Result
• UniverseData

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static enum	ServiceabilityAgentSupport.AgentStyle

Field Summary

Fields

Modifier and Type	Field	Description
private final ServiceabilityAgentSupport.AgentStyle	agentStyle
private static ServiceabilityAgentSupport	INSTANCE
private final long	processId
private final boolean	sudoRequired

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ServiceabilityAgentSupport()

Method Summary

Modifier and Type	Method	Description
private Result	callAgent(Task processor)
private Result	callAgent(Task processor, boolean sudoRequired, ServiceabilityAgentSupport.AgentStyle style)
private List<String>	getArguments(boolean sudoRequired, ServiceabilityAgentSupport.AgentStyle style)
private static long	getCurrentProcId()
UniverseData	getUniverseData()
static ServiceabilityAgentSupport	instance()
private static boolean	isSudoValidOS()
private boolean	needSudo(ServiceabilityAgentSupport.AgentStyle style)
private static String	normalizePath(String path)
private void	senseAccess(ServiceabilityAgentSupport.AgentStyle style)
private ServiceabilityAgentSupport.AgentStyle	senseAgentStyle()

Methods inherited from class Object

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

Field Details

INSTANCE

private static ServiceabilityAgentSupport INSTANCE

processId

private final long processId

sudoRequired

private final boolean sudoRequired

agentStyle

private final ServiceabilityAgentSupport.AgentStyle agentStyle

Constructor Details

ServiceabilityAgentSupport

private ServiceabilityAgentSupport()

Method Details

instance

public static ServiceabilityAgentSupport instance()

senseAgentStyle

private ServiceabilityAgentSupport.AgentStyle senseAgentStyle()

needSudo

private boolean needSudo(ServiceabilityAgentSupport.AgentStyle style)

normalizePath

private static String normalizePath(String path)

isSudoValidOS

private static boolean isSudoValidOS()

getCurrentProcId

private static long getCurrentProcId()

callAgent

private Result callAgent(Task processor)

callAgent

private Result callAgent(Task processor,
 boolean sudoRequired,
 ServiceabilityAgentSupport.AgentStyle style)

senseAccess

private void senseAccess(ServiceabilityAgentSupport.AgentStyle style)

getArguments

private List<String> getArguments(boolean sudoRequired,
 ServiceabilityAgentSupport.AgentStyle style)

getUniverseData

public UniverseData getUniverseData()