Master of Computer Science - University of Grenoble

Contact

Sara Bouchenak

Sara.Bouchenak@imag.fr                                http://sardes.inrialpes.fr/~bouchena/teaching/

Introduction to AspectJ

1.     Objectives

·         Introduction Aspect-Oriented Programming and AspectJ programming language

2.     Prerequisites

·         Java programming

3.     Software installation and configuration

• Install the required software libraries (AspectJ, Ant, MckoiDb): domwload

• Configure the environment variables below:

  • JAVA_HOME

  • ASPECTJ_HOME

  • ANT_HOME

  • PATH (including JAVA_HOME/bin, ASPECTJ_HOME/bin, ANT_HOME/bin)

• Copy the Java/AspectJ program examples: download

• Online documentation

  • AspectJ API

  • AspectJ language quick reference

4.     Decsription

1. "Hello" example

• Test the example provided in Project/Examples/Hello

  • Original application

    • compilation: run ant compile

    • execution: un ant run

  • Extended application

    • compilation: un ant compile_aj

    • execution: un ant run_aj

 

2. Pointcuts

• Test the example provided in Project/Examples/Tests

• Write a new pointcut and an after advice for the execution of a constructor.

• To test the program, add a constructor and an object creation to the provided application.

 

3. Declarations

• Extend the example provided in Project/Examples/Tests to write new aspects for:

  • the declaration of warning messages printed at AspectJ compilation time

  • the declaration of error messages printed at AspectJ compilation time

• Test the new aspects with the provided application.

 

4. Introductions

• Extend the example provided in Project/Examples/Tests to write new aspects for:

  • the introduction of new attributes to a class

  • the introduction of new methods

  • the modification of the inheritence hierarchy of classes

• Test the new aspects with the provided application.

 

5. cflow/cflowbelow

• Extend the example provided in Project/Examples/Tests to write new aspects using:

  • cflow

  • cflowbelow

• Test the new aspects with the provided application.

 

6. Passing context between pointcut and advice

• Extend the example provided in Project/Examples/Tests to write new aspects to print:

  • the signature of the join point (method or constructor)

  • the parameters of the call

  • the object on which the call is performed

  • the result of the method or constructor

  • the thrown exception

• Test the new aspects with the provided application.

 

7. thisJoinPoint and thisJoinPointStaticPart

• Browse the API of the thisJoinPoint and thisJoinPointStaticPart interface (API)

• Extend the example provided in Project/Examples/Tests to write new aspects to print:

  • information related to the join point

• Test the new aspects with the provided application.

 

8. Other pointcuts

• Extend the example provided in Project/Examples/Tests to write new aspects with:

  • pointcuts related to

    • method execution

    • constructor call

    • class initialization

    • read access to attributes

    • write access to attributes

    • exception handler

  • advice

    • before

    • after

    • around

• Test the new aspects with the provided application.