org.apache.felix.ipojo.manipulation.annotations

Class MetadataCollector

java.lang.Object

org.objectweb.asm.commons.EmptyVisitor

org.apache.felix.ipojo.manipulation.annotations.MetadataCollector

All Implemented Interfaces:

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

public class MetadataCollector
extends org.objectweb.asm.commons.EmptyVisitor
implements org.objectweb.asm.Opcodes

Collect metadata from classes by parsing annotation. This class collects type (i.e.) annotations and create method & field collectors.

Author:

Felix Project Team

Field Summary

Fields inherited from interface org.objectweb.asm.Opcodes

AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEDYNAMIC_OWNER, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7

Constructor Summary

Constructors

Constructor and Description
MetadataCollector()

Method Summary

Methods

Modifier and Type	Method and Description
String	getClassName()
org.apache.felix.ipojo.metadata.Element	getComponentTypeDeclaration()
protected Map<org.apache.felix.ipojo.metadata.Element,String>	getElements()
protected DocumentBuilder	getFreshDocumentBuilder() Creates a 'fresh' document builder.
protected Map<String,org.apache.felix.ipojo.metadata.Element>	getIds()
org.apache.felix.ipojo.metadata.Element	getInstanceDeclaration()
boolean	isComponentType()
boolean	isIgnoredBecauseOfMissingComponent()
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces) Start visiting a class.
org.objectweb.asm.AnnotationVisitor	visitAnnotation(String desc, boolean visible) Visit class annotations.
void	visitEnd() End of the visit : compute final elements.
org.objectweb.asm.FieldVisitor	visitField(int access, String name, String desc, String signature, Object value) Visit a field.
org.objectweb.asm.MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] exceptions) Visit a method.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataCollector

public MetadataCollector()

Method Detail

getComponentTypeDeclaration

public org.apache.felix.ipojo.metadata.Element getComponentTypeDeclaration()

getInstanceDeclaration

public org.apache.felix.ipojo.metadata.Element getInstanceDeclaration()

isComponentType

public boolean isComponentType()

isIgnoredBecauseOfMissingComponent

public boolean isIgnoredBecauseOfMissingComponent()

getClassName

public String getClassName()

visit

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

Start visiting a class. Initialize the getter/setter generator, add the _cm field, add the pojo interface.

Specified by:

visit in interface org.objectweb.asm.ClassVisitor

Overrides:

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

Parameters:

version - : class version

access - : class access

name - : class name

signature - : class signature

superName - : class super class

interfaces - : implemented interfaces

See Also:

ClassAdapter.visit(int, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[])

visitAnnotation

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

Visit class annotations. This method detects @component and @provides annotations.

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

Parameters:

desc - : annotation descriptor.

visible - : is the annotation visible at runtime.

Returns:

the annotation visitor.

See Also:

ClassAdapter.visitAnnotation(java.lang.String, boolean)

visitField

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

Visit a field. Call the field collector visitor.

Specified by:

visitField in interface org.objectweb.asm.ClassVisitor

Overrides:

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

Parameters:

access - : field access.

name - : field name

desc - : field descriptor

signature - : field signature

value - : field value (static field only)

Returns:

the field visitor.

See Also:

ClassAdapter.visitField(int, java.lang.String, java.lang.String, java.lang.String, java.lang.Object)

visitMethod

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

Visit a method. Call the method collector visitor.

Specified by:

visitMethod in interface org.objectweb.asm.ClassVisitor

Overrides:

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

Parameters:

access - : method access

name - : method name

desc - : method descriptor

signature - : method signature

exceptions - : method exceptions

Returns:

the Method Visitor.

See Also:

ClassAdapter.visitMethod(int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[])

visitEnd

public void visitEnd()

End of the visit : compute final elements.

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

See Also:

EmptyVisitor.visitEnd()

getIds

protected Map<String,org.apache.felix.ipojo.metadata.Element> getIds()

getElements

protected Map<org.apache.felix.ipojo.metadata.Element,String> getElements()

getFreshDocumentBuilder

protected DocumentBuilder getFreshDocumentBuilder()

Creates a 'fresh' document builder.

Returns:

a new document builder is not already created, else reset the created one, and return it.