org.mule.util.scan.annotations
Class AnnotationsScanner

java.lang.Object
  org.objectweb.asm.commons.EmptyVisitor
      org.mule.util.scan.annotations.AnnotationsScanner

All Implemented Interfaces:

ClassScanner, org.objectweb.asm.AnnotationVisitor, org.objectweb.asm.ClassVisitor, org.objectweb.asm.FieldVisitor, org.objectweb.asm.MethodVisitor

public class AnnotationsScanner
extends org.objectweb.asm.commons.EmptyVisitor
implements ClassScanner

Scans a single class and registers all annotations on the class in four collections; class annotations, field annotations method annotations and parameter annotations. This scanner can process interfaces, implementation classes and annotation classes. The scanner uses ASM to read the class bytecode, removing the need to actally load the class which would be expensive.

Field Summary

protected AnnotationInfo	currentAnnotation
protected BitSet	currentlyProcessing
protected Log	log
protected static int	PROCESSING_CLASS
protected static int	PROCESSING_FIELD
protected static int	PROCESSING_METHOD
protected static int	PROCESSING_PARAM

Constructor Summary

AnnotationsScanner()

AnnotationsScanner(AnnotationFilter filter)

Method Summary

List<AnnotationInfo>	getAllAnnotations()
String	getAnnotationClassName(String rawName)
List<AnnotationInfo>	getClassAnnotations()
String	getClassName()
List<AnnotationInfo>	getFieldAnnotations()
List<AnnotationInfo>	getMethodAnnotations()
List<AnnotationInfo>	getParamAnnotations()
boolean	isMatch()
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces) This is the class entry.
void	visit(String name, Object value) We get annotation values in this method, but have to track the current context.
org.objectweb.asm.AnnotationVisitor	visitAnnotation(String desc, boolean visible)
void	visitEnd()
org.objectweb.asm.FieldVisitor	visitField(int access, String name, String desc, String signature, Object value)
org.objectweb.asm.MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] exceptions)
org.objectweb.asm.AnnotationVisitor	visitParameterAnnotation(int parameter, String desc, boolean visible)

Methods inherited from class org.objectweb.asm.commons.EmptyVisitor

visitAnnotation, visitAnnotationDefault, visitArray, visitAttribute, visitCode, visitEnum, visitFieldInsn, visitFrame, visitIincInsn, visitInnerClass, visitInsn, visitIntInsn, visitJumpInsn, visitLabel, visitLdcInsn, visitLineNumber, visitLocalVariable, visitLookupSwitchInsn, visitMaxs, visitMethodInsn, visitMultiANewArrayInsn, visitOuterClass, visitSource, visitTableSwitchInsn, visitTryCatchBlock, visitTypeInsn, visitVarInsn

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.objectweb.asm.ClassVisitor

visitAttribute, visitInnerClass, visitOuterClass, visitSource

Field Detail

log

protected final Log log

currentAnnotation

protected AnnotationInfo currentAnnotation

PROCESSING_FIELD

protected static final int PROCESSING_FIELD

See Also:

Constant Field Values

PROCESSING_METHOD

protected static final int PROCESSING_METHOD

See Also:

Constant Field Values

PROCESSING_CLASS

protected static final int PROCESSING_CLASS

See Also:

Constant Field Values

PROCESSING_PARAM

protected static final int PROCESSING_PARAM

See Also:

Constant Field Values

currentlyProcessing

protected BitSet currentlyProcessing

Constructor Detail

AnnotationsScanner

public AnnotationsScanner()

AnnotationsScanner

public AnnotationsScanner(AnnotationFilter filter)

Method Detail

visitParameterAnnotation

public org.objectweb.asm.AnnotationVisitor visitParameterAnnotation(int parameter,
                                                                    String desc,
                                                                    boolean visible)

Specified by:

visitParameterAnnotation in interface org.objectweb.asm.MethodVisitor

Overrides:

visitParameterAnnotation in class org.objectweb.asm.commons.EmptyVisitor

visitAnnotation

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

Specified by:

visitAnnotation in interface org.objectweb.asm.ClassVisitor

Specified by:

visitAnnotation in interface org.objectweb.asm.FieldVisitor

Specified by:

visitAnnotation in interface org.objectweb.asm.MethodVisitor

Overrides:

visitAnnotation in class org.objectweb.asm.commons.EmptyVisitor

visit

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

This is the class entry.

Specified by:

visit in interface org.objectweb.asm.ClassVisitor

Overrides:

visit in class org.objectweb.asm.commons.EmptyVisitor

visit

public void visit(String name,
                  Object value)

We get annotation values in this method, but have to track the current context.

Specified by:

visit in interface org.objectweb.asm.AnnotationVisitor

Overrides:

visit in class org.objectweb.asm.commons.EmptyVisitor

visitField

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

Specified by:

visitField in interface org.objectweb.asm.ClassVisitor

Overrides:

visitField in class org.objectweb.asm.commons.EmptyVisitor

visitMethod

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

Specified by:

visitMethod in interface org.objectweb.asm.ClassVisitor

Overrides:

visitMethod in class org.objectweb.asm.commons.EmptyVisitor

visitEnd

public void visitEnd()

Specified by:

visitEnd in interface org.objectweb.asm.AnnotationVisitor

Specified by:

visitEnd in interface org.objectweb.asm.ClassVisitor

Specified by:

visitEnd in interface org.objectweb.asm.FieldVisitor

Specified by:

visitEnd in interface org.objectweb.asm.MethodVisitor

Overrides:

visitEnd in class org.objectweb.asm.commons.EmptyVisitor

getAnnotationClassName

public String getAnnotationClassName(String rawName)

getClassAnnotations

public List<AnnotationInfo> getClassAnnotations()

getFieldAnnotations

public List<AnnotationInfo> getFieldAnnotations()

getMethodAnnotations

public List<AnnotationInfo> getMethodAnnotations()

getParamAnnotations

public List<AnnotationInfo> getParamAnnotations()

getAllAnnotations

public List<AnnotationInfo> getAllAnnotations()

isMatch

public boolean isMatch()

Specified by:

isMatch in interface ClassScanner

getClassName

public String getClassName()

Specified by:

getClassName in interface ClassScanner