Class Aj

java.lang.Object
org.aspectj.weaver.loadtime.Aj
All Implemented Interfaces:
ClassPreProcessor

public class Aj extends Object implements ClassPreProcessor
Adapter between the generic class pre processor interface and the AspectJ weaver Load time weaving consistency relies on Bcel.setRepository
Author:
Alexandre Vasseur (alex AT gnilux DOT com)
  • Field Details

  • Constructor Details

  • Method Details

    • initialize

      public void initialize()
      Initialization
      Specified by:
      initialize in interface ClassPreProcessor
    • preProcess

      public byte[] preProcess(String className, byte[] bytes, ClassLoader loader, ProtectionDomain protectionDomain)
      Specified by:
      preProcess in interface ClassPreProcessor
    • removeStaleAdaptors

      public static int removeStaleAdaptors(boolean displayProgress)
      The reference queue is only processed when a request is made for a weaver adaptor. This means there can be one or two stale weavers left around. If the user knows they have finished all their weaving, they might wish to call removeStaleAdaptors which will process anything left on the reference queue containing adaptorKeys for garbage collected classloaders.
      Parameters:
      displayProgress - produce System.err info on the tidying up process
      Returns:
      number of stale weavers removed
    • getActiveAdaptorCount

      public static int getActiveAdaptorCount()
      Returns:
      the number of entries still in the weavingAdaptors map
    • checkQ

      public static void checkQ()
      Process the reference queue that contains stale AdaptorKeys - the keys are put on the queue when their classloader referent is garbage collected and so the associated adaptor (weaver) should be removed from the map
    • getNamespace

      public String getNamespace(ClassLoader loader)
      Returns a namespace based on the contest of the aspects available
    • generatedClassesExist

      public boolean generatedClassesExist(ClassLoader loader)
      Check to see if any classes have been generated for a particular classes loader. Calls ClassLoaderWeavingAdaptor.generatedClassesExist()
      Parameters:
      loader - the class cloder
      Returns:
      true if classes have been generated.
    • flushGeneratedClasses

      public void flushGeneratedClasses(ClassLoader loader)
    • prepareForRedefinition

      public void prepareForRedefinition(ClassLoader loader, String className)
      Specified by:
      prepareForRedefinition in interface ClassPreProcessor