jodd.proxetta.asm
Class ProxettaClassBuilder

java.lang.Object
  jodd.asm.EmptyClassVisitor
      jodd.proxetta.asm.ProxettaClassBuilder

All Implemented Interfaces:

org.objectweb.asm.ClassVisitor

public class ProxettaClassBuilder
extends EmptyClassVisitor

Proxetta class builder.

Field Summary

protected ProxyAspect[]	aspects
protected java.lang.String	reqProxyClassName
protected java.lang.String	suffix
protected TargetClassInfoReader	targetClassInfo
protected jodd.proxetta.asm.WorkData	wd

Constructor Summary

ProxettaClassBuilder(org.objectweb.asm.ClassVisitor dest, ProxyAspect[] aspects, java.lang.String suffix, java.lang.String reqProxyClassName, TargetClassInfoReader targetClassInfoReader)
Constructs new Proxetta class builder.

Method Summary

protected ProxettaMethodBuilder	applyProxy(MethodSignatureVisitor msign) Check if proxy should be applied on method and return proxy method builder if so.
void	visit(int version, int access, java.lang.String name, java.lang.String signature, java.lang.String superName, java.lang.String[] interfaces) Creates destination subclass header from current target class.
org.objectweb.asm.AnnotationVisitor	visitAnnotation(java.lang.String desc, boolean visible) Copies all destination type annotations to the target.
void	visitAttribute(org.objectweb.asm.Attribute attr) Visits a non standard attribute of the class (not used).
void	visitEnd() Finalizes creation of destination proxy class.
org.objectweb.asm.FieldVisitor	visitField(int access, java.lang.String name, java.lang.String desc, java.lang.String signature, java.lang.Object value) Ignores fields.
void	visitInnerClass(java.lang.String name, java.lang.String outerName, java.lang.String innerName, int access) Visits information about an inner class (not used).
org.objectweb.asm.MethodVisitor	visitMethod(int access, java.lang.String name, java.lang.String desc, java.lang.String signature, java.lang.String[] exceptions) Creates proxified methods and constructors.
void	visitOuterClass(java.lang.String owner, java.lang.String name, java.lang.String desc) Visits the enclosing class of the class (not used).
void	visitSource(java.lang.String source, java.lang.String debug) Visits the source of the class (not used).

Methods inherited from class java.lang.Object

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

Field Detail

aspects

protected final ProxyAspect[] aspects

suffix

protected final java.lang.String suffix

reqProxyClassName

protected final java.lang.String reqProxyClassName

targetClassInfo

protected final TargetClassInfoReader targetClassInfo

wd

protected final jodd.proxetta.asm.WorkData wd

Constructor Detail

ProxettaClassBuilder

public ProxettaClassBuilder(org.objectweb.asm.ClassVisitor dest,
                            ProxyAspect[] aspects,
                            java.lang.String suffix,
                            java.lang.String reqProxyClassName,
                            TargetClassInfoReader targetClassInfoReader)

Constructs new Proxetta class builder.

Parameters:

dest - destination visitor

aspects - set of asspects to apply

suffix - proxy class name suffix, may be null

reqProxyClassName - requested proxy class name, may be nulls

targetClassInfoReader - target info reader, already invoked.

Method Detail

visit

public void visit(int version,
                  int access,
                  java.lang.String name,
                  java.lang.String signature,
                  java.lang.String superName,
                  java.lang.String[] interfaces)

Creates destination subclass header from current target class. Destination name is created from targets by adding a suffix and, optionaly, a number. Destination extends the target.

Specified by:

visit in interface org.objectweb.asm.ClassVisitor

Overrides:

visit in class EmptyClassVisitor

Parameters:

version - the class version.

access - the class's access flags. This parameter also indicates if the class is deprecated.

name - the internal name of the class.

signature - the signature of this class. May be null if the class is not a generic one, and does not extend or implement generic classes or interfaces.

superName - the internal of name of the super class. For interfaces, the super class is Object. May be null, but only for the Object class.

interfaces - the internal names of the class's interfaces. May be null.

visitMethod

public org.objectweb.asm.MethodVisitor visitMethod(int access,
                                                   java.lang.String name,
                                                   java.lang.String desc,
                                                   java.lang.String signature,
                                                   java.lang.String[] exceptions)

Creates proxified methods and constructors. Destination proxy will have all constructors as a target class, using ProxettaCtorBuilder. Static initializers are removed, since they will be execute in target anyway. For each method, ProxettaMethodBuilder determines if method matches pointcut. If so, method will be proxified.

Specified by:

visitMethod in interface org.objectweb.asm.ClassVisitor

Overrides:

visitMethod in class EmptyClassVisitor

Parameters:

access - the method's access flags. This parameter also indicates if the method is synthetic and/or deprecated.

name - the method's name.

desc - the method's descriptor.

signature - the method's signature. May be null if the method parameters, return type and exceptions do not use generic types.

exceptions - the internal names of the method's exception classes. May be null.

Returns:

an object to visit the byte code of the method, or null if this class visitor is not interested in visiting the code of this method.

visitField

public org.objectweb.asm.FieldVisitor visitField(int access,
                                                 java.lang.String name,
                                                 java.lang.String desc,
                                                 java.lang.String signature,
                                                 java.lang.Object value)

Ignores fields. Fields are not copied to the destination.

Specified by:

visitField in interface org.objectweb.asm.ClassVisitor

Overrides:

visitField in class EmptyClassVisitor

Parameters:

access - the field's access flags. This parameter also indicates if the field is synthetic and/or deprecated.

name - the field's name.

desc - the field's descriptor.

signature - the field's signature. May be null if the field's type does not use generic types.

value - the field's initial value. This parameter, which may be null if the field does not have an initial value, must be an Integer, a Float, a Long, a Double or a String (for int, float, long or String fields respectively). This parameter is only used for static fields. Its value is ignored for non static fields, which must be initialized through bytecode instructions in constructors or methods.

Returns:

a visitor to visit field annotations and attributes, or null if this class visitor is not interested in visiting these annotations and attributes.

visitAnnotation

public org.objectweb.asm.AnnotationVisitor visitAnnotation(java.lang.String desc,
                                                           boolean visible)

Copies all destination type annotations to the target.

Specified by:

visitAnnotation in interface org.objectweb.asm.ClassVisitor

Overrides:

visitAnnotation in class EmptyClassVisitor

Parameters:

desc - the class descriptor of the annotation class.

visible - true if the annotation is visible at runtime.

Returns:

a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

visitEnd

public void visitEnd()

Finalizes creation of destination proxy class.

Specified by:

visitEnd in interface org.objectweb.asm.ClassVisitor

Overrides:

visitEnd in class EmptyClassVisitor

visitSource

public void visitSource(java.lang.String source,
                        java.lang.String debug)

Visits the source of the class (not used).

Specified by:

visitSource in interface org.objectweb.asm.ClassVisitor

Overrides:

visitSource in class EmptyClassVisitor

Parameters:

source - the name of the source file from which the class was compiled. May be null.

debug - additional debug information to compute the correspondance between source and compiled elements of the class. May be null.

visitOuterClass

public void visitOuterClass(java.lang.String owner,
                            java.lang.String name,
                            java.lang.String desc)

Visits the enclosing class of the class (not used).

Specified by:

visitOuterClass in interface org.objectweb.asm.ClassVisitor

Overrides:

visitOuterClass in class EmptyClassVisitor

Parameters:

owner - internal name of the enclosing class of the class.

name - the name of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.

desc - the descriptor of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.

visitAttribute

public void visitAttribute(org.objectweb.asm.Attribute attr)

Visits a non standard attribute of the class (not used).

Specified by:

visitAttribute in interface org.objectweb.asm.ClassVisitor

Overrides:

visitAttribute in class EmptyClassVisitor

Parameters:

attr - an attribute.

visitInnerClass

public void visitInnerClass(java.lang.String name,
                            java.lang.String outerName,
                            java.lang.String innerName,
                            int access)

Visits information about an inner class (not used).

Specified by:

visitInnerClass in interface org.objectweb.asm.ClassVisitor

Overrides:

visitInnerClass in class EmptyClassVisitor

Parameters:

name - the internal name of an inner class.

outerName - the internal name of the class to which the inner class belongs. May be null for not member classes.

innerName - the (simple) name of the inner class inside its enclosing class. May be null for anonymous inner classes.

access - the access flags of the inner class as originally declared in the enclosing class.

applyProxy

protected ProxettaMethodBuilder applyProxy(MethodSignatureVisitor msign)

Check if proxy should be applied on method and return proxy method builder if so. Otherwise, returns null.