Package org.springframework.aop.aspectj

Class AbstractAspectJAdvice

java.lang.Object
org.springframework.aop.aspectj.AbstractAspectJAdvice
All Implemented Interfaces:
Serializable, Advice, AspectJPrecedenceInformation, Ordered
Direct Known Subclasses:
AspectJAfterAdvice, AspectJAfterReturningAdvice, AspectJAfterThrowingAdvice, AspectJAroundAdvice, AspectJMethodBeforeAdvice
public abstract class AbstractAspectJAdvice extends Object implements Advice, AspectJPrecedenceInformation, Serializable
Base class for AOP Alliance Advice classes wrapping an AspectJ aspect or an AspectJ-annotated advice method.
Since:
2.0
Author:
Rod Johnson, Adrian Colyer, Juergen Hoeller, Ramnivas Laddad
See Also:

  • Field Details

    • JOIN_POINT_KEY

      protected static final String JOIN_POINT_KEY
      Key used in ReflectiveMethodInvocation userAttributes map for the current joinpoint.

    • aspectJAdviceMethod

      protected transient Method aspectJAdviceMethod

  • Constructor Details

    • AbstractAspectJAdvice

      public AbstractAspectJAdvice(Method aspectJAdviceMethod, AspectJExpressionPointcut pointcut, AspectInstanceFactory aspectInstanceFactory)
      Create a new AbstractAspectJAdvice for the given advice method.
      Parameters:
      aspectJAdviceMethod - the AspectJ-style advice method
      pointcut - the AspectJ expression pointcut
      aspectInstanceFactory - the factory for aspect instances

  • Method Details

    • currentJoinPoint

      public static org.aspectj.lang.JoinPoint currentJoinPoint()
      Lazily instantiate joinpoint for the current invocation. Requires MethodInvocation to be bound with ExposeInvocationInterceptor.

      Do not use if access is available to the current ReflectiveMethodInvocation (in an around advice).

      Returns:
      current AspectJ joinpoint, or through an exception if we're not in a Spring AOP invocation.

    • getAspectJAdviceMethod

      public final Method getAspectJAdviceMethod()
      Return the AspectJ-style advice method.

    • getPointcut

      public final AspectJExpressionPointcut getPointcut()
      Return the AspectJ expression pointcut.

    • buildSafePointcut

      public final Pointcut buildSafePointcut()
      Build a 'safe' pointcut that excludes the AspectJ advice method itself.
      Returns:
      a composable pointcut that builds on the original AspectJ expression pointcut
      See Also:

    • getAspectInstanceFactory

      public final AspectInstanceFactory getAspectInstanceFactory()
      Return the factory for aspect instances.

    • getAspectClassLoader

      @Nullable public final ClassLoader getAspectClassLoader()
      Return the ClassLoader for aspect instances.

    • getOrder

      public int getOrder()
      Description copied from interface: Ordered
      Get the order value of this object.

      Higher values are interpreted as lower priority. As a consequence, the object with the lowest value has the highest priority (somewhat analogous to Servlet load-on-startup values).

      Same order values will result in arbitrary sort positions for the affected objects.

      Specified by:
      getOrder in interface Ordered
      Returns:
      the order value
      See Also:

    • setAspectName

      public void setAspectName(String name)
      Set the name of the aspect (bean) in which the advice was declared.

    • getAspectName

      public String getAspectName()
      Description copied from interface: AspectJPrecedenceInformation
      Return the name of the aspect (bean) in which the advice was declared.
      Specified by:
      getAspectName in interface AspectJPrecedenceInformation

    • setDeclarationOrder

      public void setDeclarationOrder(int order)
      Set the declaration order of this advice within the aspect.

    • getDeclarationOrder

      public int getDeclarationOrder()
      Description copied from interface: AspectJPrecedenceInformation
      Return the declaration order of the advice member within the aspect.
      Specified by:
      getDeclarationOrder in interface AspectJPrecedenceInformation

    • setArgumentNames

      public void setArgumentNames(String argNames)
      Set by creator of this advice object if the argument names are known.

      This could be for example because they have been explicitly specified in XML, or in an advice annotation.

      Parameters:
      argNames - comma delimited list of arg names

    • setArgumentNamesFromStringArray

      public void setArgumentNamesFromStringArray(String... args)

    • setReturningName

      public void setReturningName(String name)

    • setReturningNameNoCheck

      protected void setReturningNameNoCheck(String name)
      We need to hold the returning name at this level for argument binding calculations, this method allows the afterReturning advice subclass to set the name.

    • getDiscoveredReturningType

      protected Class<?> getDiscoveredReturningType()

    • getDiscoveredReturningGenericType

      @Nullable protected Type getDiscoveredReturningGenericType()

    • setThrowingName

      public void setThrowingName(String name)

    • setThrowingNameNoCheck

      protected void setThrowingNameNoCheck(String name)
      We need to hold the throwing name at this level for argument binding calculations, this method allows the afterThrowing advice subclass to set the name.

    • getDiscoveredThrowingType

      protected Class<?> getDiscoveredThrowingType()

    • calculateArgumentBindings

      public final void calculateArgumentBindings()
      Do as much work as we can as part of the set-up so that argument binding on subsequent advice invocations can be as fast as possible.

      If the first argument is of type JoinPoint or ProceedingJoinPoint then we pass a JoinPoint in that position (ProceedingJoinPoint for around advice).

      If the first argument is of type JoinPoint.StaticPart then we pass a JoinPoint.StaticPart in that position.

      Remaining arguments have to be bound by pointcut evaluation at a given join point. We will get back a map from argument name to value. We need to calculate which advice parameter needs to be bound to which argument name. There are multiple strategies for determining this binding, which are arranged in a ChainOfResponsibility.

    • supportsProceedingJoinPoint

      protected boolean supportsProceedingJoinPoint()

    • createParameterNameDiscoverer

      protected ParameterNameDiscoverer createParameterNameDiscoverer()
      Create a ParameterNameDiscoverer to be used for argument binding.

      The default implementation creates a DefaultParameterNameDiscoverer and adds a specifically configured AspectJAdviceParameterNameDiscoverer.

    • argBinding

      protected Object[] argBinding(org.aspectj.lang.JoinPoint jp, @Nullable org.aspectj.weaver.tools.JoinPointMatch jpMatch, @Nullable Object returnValue, @Nullable Throwable ex)
      Take the arguments at the method execution join point and output a set of arguments to the advice method.
      Parameters:
      jp - the current JoinPoint
      jpMatch - the join point match that matched this execution join point
      returnValue - the return value from the method execution (may be null)
      ex - the exception thrown by the method execution (may be null)
      Returns:
      the empty array if there are no arguments

    • invokeAdviceMethod

      protected Object invokeAdviceMethod(@Nullable org.aspectj.weaver.tools.JoinPointMatch jpMatch, @Nullable Object returnValue, @Nullable Throwable ex) throws Throwable
      Invoke the advice method.
      Parameters:
      jpMatch - the JoinPointMatch that matched this execution join point
      returnValue - the return value from the method execution (may be null)
      ex - the exception thrown by the method execution (may be null)
      Returns:
      the invocation result
      Throws:
      Throwable - in case of invocation failure

    • invokeAdviceMethod

      protected Object invokeAdviceMethod(org.aspectj.lang.JoinPoint jp, @Nullable org.aspectj.weaver.tools.JoinPointMatch jpMatch, @Nullable Object returnValue, @Nullable Throwable t) throws Throwable
      Throws:
      Throwable

    • invokeAdviceMethodWithGivenArgs

      protected Object invokeAdviceMethodWithGivenArgs(Object[] args) throws Throwable
      Throws:
      Throwable

    • getJoinPoint

      protected org.aspectj.lang.JoinPoint getJoinPoint()
      Overridden in around advice to return proceeding join point.

    • getJoinPointMatch

      @Nullable protected org.aspectj.weaver.tools.JoinPointMatch getJoinPointMatch()
      Get the current join point match at the join point we are being dispatched on.

    • getJoinPointMatch

      @Nullable protected org.aspectj.weaver.tools.JoinPointMatch getJoinPointMatch(ProxyMethodInvocation pmi)

    • toString

      public String toString()
      Overrides:
      toString in class Object