net.grinder.engine.process.dcr

Class DCRContextImplementation

java.lang.Object

net.grinder.engine.process.dcr.DCRContextImplementation

All Implemented Interfaces:

DCRContext

public final class DCRContextImplementation
extends Object
implements DCRContext

Wrap up the DCR context for use by AbstractDCRInstrumenter implementations.

Author:

Philip Aston

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Object target, Constructor<?> constructor, Recorder recorder) Register a constructor for instrumentation.
void	add(Object target, Method method, Weaver.TargetSource targetSource, Recorder recorder) Register a method for instrumentation.
void	applyChanges() Apply the changes queued with the add methods.
static DCRContextImplementation	create(org.slf4j.Logger logger) Attempt to create a context.
boolean	isInstrumentable(Class<?> targetClass) Test whether a class can be instrumented.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static DCRContextImplementation create(org.slf4j.Logger logger)

Attempt to create a context.

Parameters:

logger - A logger to complain to if problems are found.

Returns:

The context, or null if one could not be created.

add

public void add(Object target,
       Constructor<?> constructor,
       Recorder recorder)
         throws NonInstrumentableTypeException

Register a constructor for instrumentation.

Specified by:

add in interface DCRContext

Parameters:

target - Target object.

constructor - The constructor.

recorder - The recorder to use.

Throws:

NonInstrumentableTypeException - If the constructor belongs to a non-instrumentable type.

add

public void add(Object target,
       Method method,
       Weaver.TargetSource targetSource,
       Recorder recorder)
         throws NonInstrumentableTypeException

Register a method for instrumentation.

Specified by:

add in interface DCRContext

Parameters:

target - Target object.

method - The method.

targetSource - The method parameter that identifies the target object..

recorder - The recorder to use.

Throws:

NonInstrumentableTypeException - If the method belongs to a non-instrumentable type.

isInstrumentable

public boolean isInstrumentable(Class<?> targetClass)

Test whether a class can be instrumented.

Specified by:

isInstrumentable in interface DCRContext

Parameters:

targetClass - The class to test.

Returns:

true if the class can be instrumented.

applyChanges

public void applyChanges()
                  throws WeavingException

Apply the changes queued with the add methods.

Specified by:

applyChanges in interface DCRContext

Throws:

WeavingException - If weaving failed.