Package com.intergral.deep.agent.tracepoint.inst

Class TracepointInstrumentationService

java.lang.Object

com.intergral.deep.agent.tracepoint.inst.TracepointInstrumentationService

All Implemented Interfaces:

ClassFileTransformer

public class TracepointInstrumentationService
extends Object
implements ClassFileTransformer

This service deals with detecting which classes need to be transformed and uses the visitor to instrument the classes as needed.

Field Summary

Fields

Modifier and Type	Field	Description
static long	COMPUTE_ON_CLASS_VERSION

Constructor Summary

Constructors

Constructor	Description
TracepointInstrumentationService(Instrumentation inst, Settings settings)	Create a new service.

Method Summary

Modifier and Type	Method	Description
protected URL	getLocation(ProtectionDomain protectionDomain)
static TracepointInstrumentationService	init(Instrumentation inst, Settings settings)	Initialise the tracepoint service with the deep services.
void	processBreakpoints(Collection<TracePointConfig> breakpointResponse)	Process the new config from the services and determine which classes need to be transformed, and trigger transformation.
protected CFClassScanner	reTransFormCfClasses(Map<String,TracePointConfig> newCFMState, Map<String,TracePointConfig> previousCFMState)	Calculate the classes to scan for CFM.
byte[]	transform(ClassLoader loader, String classNameP, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.instrument.ClassFileTransformer

transform

Field Detail

COMPUTE_ON_CLASS_VERSION

public static final long COMPUTE_ON_CLASS_VERSION

Constructor Detail

TracepointInstrumentationService

public TracepointInstrumentationService(Instrumentation inst,
                                        Settings settings)

Create a new service.

Parameters:

inst - the instrumentation service

settings - the deep settings

Method Detail

init

public static TracepointInstrumentationService init(Instrumentation inst,
                                                    Settings settings)

Initialise the tracepoint service with the deep services.

Parameters:

inst - the instrumentation to use

settings - the settings for deep

Returns:

the configured service

processBreakpoints

public void processBreakpoints(Collection<TracePointConfig> breakpointResponse)

Process the new config from the services and determine which classes need to be transformed, and trigger transformation.

Parameters:

breakpointResponse - the new list of tracepoints that have been received from the server.

reTransFormCfClasses

protected CFClassScanner reTransFormCfClasses(Map<String,TracePointConfig> newCFMState,
                                              Map<String,TracePointConfig> previousCFMState)

Calculate the classes to scan for CFM.

Parameters:

newCFMState - the new CFM state

previousCFMState - the previous CFM state

Returns:

the CFM class scanner

getLocation

protected URL getLocation(ProtectionDomain protectionDomain)

transform

public byte[] transform(ClassLoader loader,
                        String classNameP,
                        Class<?> classBeingRedefined,
                        ProtectionDomain protectionDomain,
                        byte[] classfileBuffer)

Specified by:

transform in interface ClassFileTransformer