jodd.proxetta.asm

Class ProxettaClassBuilder

java.lang.Object

jodd.asm7.ClassVisitor

jodd.asm.EmptyClassVisitor

jodd.proxetta.asm.ProxettaClassBuilder

Direct Known Subclasses:

ProxettaWrapperClassBuilder

public class ProxettaClassBuilder
extends EmptyClassVisitor

Proxetta class builder.

Field Summary

Fields

Modifier and Type	Field and Description
protected ProxyAspect[]	aspects
protected java.lang.String	reqProxyClassName
protected java.lang.String	suffix
protected TargetClassInfoReader	targetClassInfo
protected WorkData	wd

Fields inherited from class jodd.asm7.ClassVisitor

api, cv

Constructor Summary

Constructors

Constructor and Description
ProxettaClassBuilder(ClassVisitor dest, ProxyAspect[] aspects, java.lang.String suffix, java.lang.String reqProxyClassName, TargetClassInfoReader targetClassInfoReader) Constructs new Proxetta class builder.

Method Summary

Modifier and Type	Method and Description
protected ProxettaMethodBuilder	applyProxy(MethodSignatureVisitor msign) Check if proxy should be applied on method and return proxy method builder if so.
WorkData	getWorkData() Returns working data.
protected void	makeProxyConstructor() Creates init method that simply calls all advice constructor methods in correct order.
protected void	makeStaticInitBlock() Creates static initialization block that simply calls all advice static init methods in correct order.
protected java.util.List<jodd.proxetta.asm.ProxyAspectData>	matchMethodPointcuts(MethodSignatureVisitor msign) Matches pointcuts on method.
protected void	processSuperMethods() Checks for all public super methods that are not overridden.
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.
AnnotationVisitor	visitAnnotation(java.lang.String desc, boolean visible) Copies all destination type annotations to the target.
void	visitAttribute(Attribute attr) Visits a non standard attribute of the class (not used).
void	visitEnd() Finalizes creation of destination proxy class.
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).
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 jodd.asm7.ClassVisitor

visitModule, visitNestHost, visitNestMember, visitTypeAnnotation

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 WorkData wd

Constructor Detail

ProxettaClassBuilder

public ProxettaClassBuilder(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 aspects 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

getWorkData

public WorkData getWorkData()

Returns working data.

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, optionally, a number. Destination extends the target.

Overrides:

visit in class ClassVisitor

Parameters:

version - the class version. The minor version is stored in the 16 most significant bits, and the major version in the 16 least significant bits.

access - the class's access flags (see Opcodes). This parameter also indicates if the class is deprecated.

name - the internal name of the class (see Type.getInternalName()).

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 (see Type.getInternalName()). 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 (see Type.getInternalName()). May be null.

visitMethod

public 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.

Overrides:

visitMethod in class ClassVisitor

Parameters:

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

name - the method's name.

desc - the method's descriptor (see Type).

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 (see Type.getInternalName()). 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 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.

Overrides:

visitField in class ClassVisitor

Parameters:

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

name - the field's name.

desc - the field's descriptor (see Type).

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 AnnotationVisitor visitAnnotation(java.lang.String desc,
                                         boolean visible)

Copies all destination type annotations to the target.

Overrides:

visitAnnotation in class ClassVisitor

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.

Overrides:

visitEnd in class ClassVisitor

makeStaticInitBlock

protected void makeStaticInitBlock()

Creates static initialization block that simply calls all advice static init methods in correct order.

makeProxyConstructor

protected void makeProxyConstructor()

Creates init method that simply calls all advice constructor methods in correct order. This created init method is called from each destination's constructor.

processSuperMethods

protected void processSuperMethods()

Checks for all public super methods that are not overridden.

visitSource

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

Visits the source of the class (not used).

Overrides:

visitSource in class ClassVisitor

Parameters:

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

debug - additional debug information to compute the correspondence 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).

Overrides:

visitOuterClass in class ClassVisitor

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(Attribute attr)

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

Overrides:

visitAttribute in class ClassVisitor

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).

Overrides:

visitInnerClass in class ClassVisitor

Parameters:

name - the internal name of an inner class (see Type.getInternalName()).

outerName - the internal name of the class to which the inner class belongs (see Type.getInternalName()). 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.

matchMethodPointcuts

protected java.util.List<jodd.proxetta.asm.ProxyAspectData> matchMethodPointcuts(MethodSignatureVisitor msign)

Matches pointcuts on method. If no pointcut found, returns null.