ByteBuddy - Changing the set of types of an existing AgentBuilder to modify a subset of the instrumented...











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I have the following case: I'm using ByteBuddy and its Advice which I applied to several methods of a bunch of classes.



Assuming I have the following classes:




  • x.y.z.MyClass1A

  • x.y.z.MyClass2A

  • x.y.z.MyClass1B

  • x.y.z.MyClass2B


To add my Advice to all of these classes, the AgentBuilder is used and the classes are selected using an ElementMatcher: .type(startsWith("x.y.z.MyClass")). Using the builders visit(..) method I apply the Advice.



This works quite fine and, in the end, gives me an instance of ResettableClassFileTransformer. Now, all of the four example classes contains the advice.



Now, I want to change the ElementMatcher to something like this: .type(endsWith("A"))



I want to archive that only the matching classes (in this example ending with 'A') keeps the advice. The classes which are not matching anymore should be resettet to their original state. Furthermore, if there are other classes that are matching the new ElementMatcher, those should also get the Advice applied.



Is this possible using ByteBuddy and its AgentBuilder?






java byte-buddy







share|improve this question


























    up vote
    1
    down vote

    favorite












    I have the following case: I'm using ByteBuddy and its Advice which I applied to several methods of a bunch of classes.



    Assuming I have the following classes:




    • x.y.z.MyClass1A

    • x.y.z.MyClass2A

    • x.y.z.MyClass1B

    • x.y.z.MyClass2B


    To add my Advice to all of these classes, the AgentBuilder is used and the classes are selected using an ElementMatcher: .type(startsWith("x.y.z.MyClass")). Using the builders visit(..) method I apply the Advice.



    This works quite fine and, in the end, gives me an instance of ResettableClassFileTransformer. Now, all of the four example classes contains the advice.



    Now, I want to change the ElementMatcher to something like this: .type(endsWith("A"))



    I want to archive that only the matching classes (in this example ending with 'A') keeps the advice. The classes which are not matching anymore should be resettet to their original state. Furthermore, if there are other classes that are matching the new ElementMatcher, those should also get the Advice applied.



    Is this possible using ByteBuddy and its AgentBuilder?






    java byte-buddy







    share|improve this question
























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I have the following case: I'm using ByteBuddy and its Advice which I applied to several methods of a bunch of classes.



      Assuming I have the following classes:




      • x.y.z.MyClass1A

      • x.y.z.MyClass2A

      • x.y.z.MyClass1B

      • x.y.z.MyClass2B


      To add my Advice to all of these classes, the AgentBuilder is used and the classes are selected using an ElementMatcher: .type(startsWith("x.y.z.MyClass")). Using the builders visit(..) method I apply the Advice.



      This works quite fine and, in the end, gives me an instance of ResettableClassFileTransformer. Now, all of the four example classes contains the advice.



      Now, I want to change the ElementMatcher to something like this: .type(endsWith("A"))



      I want to archive that only the matching classes (in this example ending with 'A') keeps the advice. The classes which are not matching anymore should be resettet to their original state. Furthermore, if there are other classes that are matching the new ElementMatcher, those should also get the Advice applied.



      Is this possible using ByteBuddy and its AgentBuilder?






      java byte-buddy







      share|improve this question













      I have the following case: I'm using ByteBuddy and its Advice which I applied to several methods of a bunch of classes.



      Assuming I have the following classes:




      • x.y.z.MyClass1A

      • x.y.z.MyClass2A

      • x.y.z.MyClass1B

      • x.y.z.MyClass2B


      To add my Advice to all of these classes, the AgentBuilder is used and the classes are selected using an ElementMatcher: .type(startsWith("x.y.z.MyClass")). Using the builders visit(..) method I apply the Advice.



      This works quite fine and, in the end, gives me an instance of ResettableClassFileTransformer. Now, all of the four example classes contains the advice.



      Now, I want to change the ElementMatcher to something like this: .type(endsWith("A"))



      I want to archive that only the matching classes (in this example ending with 'A') keeps the advice. The classes which are not matching anymore should be resettet to their original state. Furthermore, if there are other classes that are matching the new ElementMatcher, those should also get the Advice applied.



      Is this possible using ByteBuddy and its AgentBuilder?






      java byte-buddy




      java byte-buddy






      share|improve this question













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      share|improve this question










      asked 7 hours ago









      Ehler

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