ipojo/manipulator/src/main/java/org/apache/felix/ipojo/manipulation/PojoAdapter.java - onos-felix - Gitiles

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */
 package org.apache.felix.ipojo.manipulation;

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 import org.objectweb.asm.AnnotationVisitor;
 import org.objectweb.asm.Attribute;
 import org.objectweb.asm.ClassAdapter;
 import org.objectweb.asm.ClassVisitor;
 import org.objectweb.asm.FieldVisitor;
 import org.objectweb.asm.Label;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Opcodes;
 import org.objectweb.asm.Type;

 /**
  * Manipulate a POJO class.
  * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
  */
 public class PojoAdapter extends ClassAdapter implements Opcodes {

     /**
      * POJO interface.
      */
     private final String m_pojo = "org/apache/felix/ipojo/Pojo";

     /**
      * The owner. m_owner : String
      */
     private String m_owner;

     /**
      * Field list.
      */
     private Set m_fields;


     /**
      * Method list.
      */
     private List m_methods = new ArrayList();

     /**
      * Getter/Setter methods creator.
      */
     private FieldAdapter m_getterSetterCreator = new FieldAdapter(cv);

     /**
      * Constructor.
      * @param arg0 : class adapter on which delegate.
      * @param fields : map of contained fields.
      * @param m_fields2
      */
     public PojoAdapter(ClassVisitor arg0, Map fields) {
         super(arg0);
         m_fields = fields.keySet();
     }

     /**
      * Start visiting a class.
      * Initialize the getter/setter generator, add the _cm field, add the pojo interface.
      * @param version : class version
      * @param access : class access
      * @param name : class name
      * @param signature : class signature
      * @param superName : class super class
      * @param interfaces : implemented interfaces
      * @see org.objectweb.asm.ClassAdapter#visit(int, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[])
      */
     public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
         m_owner = name;
         m_getterSetterCreator.visit(version, access, name, signature, superName, interfaces);
         addCMField();
         addPOJOInterface(version, access, name, signature, superName, interfaces);
     }

     /**
      * Visit an annotation.
      * @param desc : annotation descriptor.
      * @param visible : is the annotation visible at runtime.
      * @return the annotation visitor.
      * @see org.objectweb.asm.ClassAdapter#visitAnnotation(java.lang.String, boolean)
      */
     public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
         return super.visitAnnotation(desc, visible);
     }

     /**
      * Visit an attribute.
      * @param attr : visited attribute
      * @see org.objectweb.asm.ClassAdapter#visitAttribute(org.objectweb.asm.Attribute)
      */
     public void visitAttribute(Attribute attr) {
         super.visitAttribute(attr);
     }

     /**
      * Visit end.
      * Create helper methods.
      * @see org.objectweb.asm.ClassAdapter#visitEnd()
      */
     public void visitEnd() {
         // Create the _cmSetter(ComponentManager cm) method
         createComponentManagerSetter();

         // Add the getComponentInstance
         createGetComponentInstanceMethod();

         m_methods.clear();

         cv.visitEnd();
     }

     /**
      * Visit a field.
      * Call the adapter generating getter and setter methods.
      * @param access : field access.
      * @param name : field name
      * @param desc : field descriptor
      * @param signature : field signature
      * @param value : field value (static field only)
      * @return the field visitor.
      * @see org.objectweb.asm.ClassAdapter#visitField(int, java.lang.String, java.lang.String, java.lang.String, java.lang.Object)
      */
     public FieldVisitor visitField(int access, String name, String desc, String signature, Object value) {
         // Add the field to the list.
         if (((access & ACC_STATIC) == 0) && (!name.startsWith("class$"))) {
             addFlagField(name);
             m_getterSetterCreator.visitField(access, name, desc, signature, value);
         }

         return super.visitField(access, name, desc, signature, value);
     }

     /**
      * Visit an inner class.
      * @param name : class name
      * @param outerName : outer name
      * @param innerName : inner name
      * @param access : class access
      * @see org.objectweb.asm.ClassAdapter#visitInnerClass(java.lang.String, java.lang.String, java.lang.String, int)
      */
     public void visitInnerClass(String name, String outerName, String innerName, int access) {
         super.visitInnerClass(name, outerName, innerName, access);
     }

     /**
      * Visit a method.
      * Manipulate constructor and methods. Does nothing with clinit and class$
      * @param access : method access
      * @param name : method name
      * @param desc : method descriptor
      * @param signature : method signature
      * @param exceptions : method exceptions
      * @return the Method Visitor.
      * @see org.objectweb.asm.ClassAdapter#visitMethod(int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[])
      */
     public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
         // Avoid manipulating special method
         if (name.equals("<clinit>") || name.equals("class$")) { return super.visitMethod(access, name, desc, signature, exceptions); }
         // The constructor is manipulated separately
         if (name.equals("<init>")) {

             // 1) change the constructor descriptor (add a component manager arg as first argument)
             String newDesc = desc.substring(1);
             newDesc = "(Lorg/apache/felix/ipojo/InstanceManager;" + newDesc;

             // Insert the new constructor
             MethodVisitor mv = super.visitMethod(ACC_PUBLIC, "<init>", newDesc, null, null);

             Type[] args = Type.getArgumentTypes(newDesc);
             String id = "$init";
             for (int i = 0; i < args.length; i++) {
                 String cn = args[i].getClassName();
                 if (cn.endsWith("[]")) {
                     cn = cn.replace('[', '$');
                     cn = cn.substring(0, cn.length() - 1);
                 }
                 cn = cn.replace('.', '_');
                 id += cn;
             }

             String flag = "_M" + id;
             m_methods.add(id);

             FieldVisitor flagField = cv.visitField(Opcodes.ACC_PRIVATE, flag, "Z", null, null);
             if (flagField != null) {
                 flagField.visitEnd();
             }

             if (mv == null) {
                 return null;
             } else {
                 return new ConstructorCodeAdapter(mv, m_owner, m_fields, access, name, newDesc);
             }
         } else { // "Normal methods"
             // avoid manipulating static methods.
             if ((access & ACC_STATIC) == ACC_STATIC) { return super.visitMethod(access, name, desc, signature, exceptions); }

             Type[] args = Type.getArgumentTypes(desc);
             String id = name;
             for (int i = 0; i < args.length; i++) {
                 String cn = args[i].getClassName();
                 if (cn.endsWith("[]")) {
                     cn = cn.replace('[', '$');
                     cn = cn.substring(0, cn.length() - 1);
                 }
                 cn = cn.replace('.', '_');
                 id += cn;
             }

             String flag = "_M" + id;
             m_methods.add(id);

             FieldVisitor flagField = cv.visitField(Opcodes.ACC_PRIVATE, flag, "Z", null, null);
             if (flagField != null) {
                 flagField.visitEnd();
             }

             MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
             return new MethodCodeAdapter(mv, m_owner, access, name, desc, m_fields);
         }
     }

     /**
      * Visit an outer class.
      * @param owner : class owner
      * @param name : class name
      * @param desc : class descriptor.
      * @see org.objectweb.asm.ClassAdapter#visitOuterClass(java.lang.String, java.lang.String, java.lang.String)
      */
     public void visitOuterClass(String owner, String name, String desc) {
         super.visitOuterClass(owner, name, desc);
     }

     /**
      * Visit source.
      * @param source : source
      * @param debug : debug
      * @see org.objectweb.asm.ClassAdapter#visitSource(java.lang.String, java.lang.String)
      */
     public void visitSource(String source, String debug) {
         super.visitSource(source, debug);
     }

     /**
      * Add the instance manager field (_cm).
      */
     private void addCMField() {
         // Insert _cm field
         FieldVisitor fv = super.visitField(ACC_PRIVATE, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;", null, null);
         fv.visitEnd();
     }

     /**
      * Add the POJO interface to the visited class.
      * @param version : class version
      * @param access : class access
      * @param name : class name
      * @param signature : class signature
      * @param superName : super class
      * @param interfaces : implemented interfaces.
      */
     private void addPOJOInterface(int version, int access, String name, String signature, String superName, String[] interfaces) {

         // Add the POJO interface to the interface list
         // Check that the POJO interface is not already in the list
         boolean found = false;
         for (int i = 0; i < interfaces.length; i++) {
             if (interfaces[i].equals(m_pojo)) {
                 found = true;
             }
         }
         String[] itfs;
         if (!found) {
             itfs = new String[interfaces.length + 1];
             for (int i = 0; i < interfaces.length; i++) {
                 itfs[i] = interfaces[i];
             }
             itfs[interfaces.length] = m_pojo;
         } else {
             itfs = interfaces;
         }

         String str = "";
         for (int i = 0; i < itfs.length; i++) {
             str += itfs[i] + " ";
         }

         cv.visit(version, access, name, signature, superName, itfs);
     }

     /**
      * Create the setter method for the _cm field.
      */
     private void createComponentManagerSetter() {
         MethodVisitor mv = cv.visitMethod(ACC_PRIVATE, "_setComponentManager", "(Lorg/apache/felix/ipojo/InstanceManager;)V", null, null);

         mv.visitVarInsn(ALOAD, 0);
         mv.visitVarInsn(ALOAD, 1);
         mv.visitFieldInsn(PUTFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");

         mv.visitVarInsn(ALOAD, 0);
         mv.visitFieldInsn(GETFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");
         mv.visitMethodInsn(INVOKEVIRTUAL, "org/apache/felix/ipojo/InstanceManager", "getRegistredFields", "()Ljava/util/Set;");
         mv.visitVarInsn(ASTORE, 2);

         mv.visitVarInsn(ALOAD, 2);
         Label endif = new Label();
         mv.visitJumpInsn(IFNULL, endif);
         Iterator it = m_fields.iterator();
         while (it.hasNext()) {
             String field = (String) it.next();
             mv.visitVarInsn(ALOAD, 2);
             mv.visitLdcInsn(field);
             mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Set", "contains", "(Ljava/lang/Object;)Z");
             Label l3 = new Label();
             mv.visitJumpInsn(IFEQ, l3);
             mv.visitVarInsn(ALOAD, 0);
             mv.visitInsn(ICONST_1);
             mv.visitFieldInsn(PUTFIELD, m_owner, "_F" + field, "Z");
             mv.visitLabel(l3);
         }
         mv.visitLabel(endif);

         mv.visitVarInsn(ALOAD, 0);
         mv.visitFieldInsn(GETFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");
         mv.visitMethodInsn(INVOKEVIRTUAL, "org/apache/felix/ipojo/InstanceManager", "getRegistredMethods", "()Ljava/util/Set;");
         mv.visitVarInsn(ASTORE, 2);

         mv.visitVarInsn(ALOAD, 2);
         Label endif2 = new Label();
         mv.visitJumpInsn(IFNULL, endif2);

         for (int i = 0; i < m_methods.size(); i++) {
             String methodId = (String) m_methods.get(i);
             mv.visitVarInsn(ALOAD, 2);
             mv.visitLdcInsn(methodId);
             mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Set", "contains", "(Ljava/lang/Object;)Z");
             Label l3 = new Label();
             mv.visitJumpInsn(IFEQ, l3);
             mv.visitVarInsn(ALOAD, 0);
             mv.visitInsn(ICONST_1);
             mv.visitFieldInsn(PUTFIELD, m_owner, "_M" + methodId, "Z");
             mv.visitLabel(l3);
         }

         mv.visitLabel(endif2);

         mv.visitInsn(RETURN);

         mv.visitMaxs(0, 0);
         mv.visitEnd();
     }

     /**
      * Create the getComponentInstance method.
      */
     private void createGetComponentInstanceMethod() {
         MethodVisitor mv = cv.visitMethod(ACC_PUBLIC, "getComponentInstance", "()Lorg/apache/felix/ipojo/ComponentInstance;", null, null);

         mv.visitVarInsn(ALOAD, 0);
         mv.visitFieldInsn(GETFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");
         mv.visitInsn(ARETURN);

         mv.visitMaxs(0, 0);
         mv.visitEnd();
     }

     /**
      * Add the flag field.
      * @param name : name of the field
      */
     private void addFlagField(String name) {
         // Add the flag field
         FieldVisitor flag = cv.visitField(Opcodes.ACC_PRIVATE, "_F" + name, "Z", null, null);
         if (flag != null) {
             flag.visitEnd();
         }
     }

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/
	package org.apache.felix.ipojo.manipulation;

	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	import org.objectweb.asm.AnnotationVisitor;
	import org.objectweb.asm.Attribute;
	import org.objectweb.asm.ClassAdapter;
	import org.objectweb.asm.ClassVisitor;
	import org.objectweb.asm.FieldVisitor;
	import org.objectweb.asm.Label;
	import org.objectweb.asm.MethodVisitor;
	import org.objectweb.asm.Opcodes;
	import org.objectweb.asm.Type;

	/**
	* Manipulate a POJO class.
	* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
	*/
	public class PojoAdapter extends ClassAdapter implements Opcodes {

	/**
	* POJO interface.
	*/
	private final String m_pojo = "org/apache/felix/ipojo/Pojo";

	/**
	* The owner. m_owner : String
	*/
	private String m_owner;

	/**
	* Field list.
	*/
	private Set m_fields;


	/**
	* Method list.
	*/
	private List m_methods = new ArrayList();

	/**
	* Getter/Setter methods creator.
	*/
	private FieldAdapter m_getterSetterCreator = new FieldAdapter(cv);

	/**
	* Constructor.
	* @param arg0 : class adapter on which delegate.
	* @param fields : map of contained fields.
	* @param m_fields2
	*/
	public PojoAdapter(ClassVisitor arg0, Map fields) {
	super(arg0);
	m_fields = fields.keySet();
	}

	/**
	* Start visiting a class.
	* Initialize the getter/setter generator, add the _cm field, add the pojo interface.
	* @param version : class version
	* @param access : class access
	* @param name : class name
	* @param signature : class signature
	* @param superName : class super class
	* @param interfaces : implemented interfaces
	* @see org.objectweb.asm.ClassAdapter#visit(int, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[])
	*/
	public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
	m_owner = name;
	m_getterSetterCreator.visit(version, access, name, signature, superName, interfaces);
	addCMField();
	addPOJOInterface(version, access, name, signature, superName, interfaces);
	}

	/**
	* Visit an annotation.
	* @param desc : annotation descriptor.
	* @param visible : is the annotation visible at runtime.
	* @return the annotation visitor.
	* @see org.objectweb.asm.ClassAdapter#visitAnnotation(java.lang.String, boolean)
	*/
	public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
	return super.visitAnnotation(desc, visible);
	}

	/**
	* Visit an attribute.
	* @param attr : visited attribute
	* @see org.objectweb.asm.ClassAdapter#visitAttribute(org.objectweb.asm.Attribute)
	*/
	public void visitAttribute(Attribute attr) {
	super.visitAttribute(attr);
	}

	/**
	* Visit end.
	* Create helper methods.
	* @see org.objectweb.asm.ClassAdapter#visitEnd()
	*/
	public void visitEnd() {
	// Create the _cmSetter(ComponentManager cm) method
	createComponentManagerSetter();

	// Add the getComponentInstance
	createGetComponentInstanceMethod();

	m_methods.clear();

	cv.visitEnd();
	}

	/**
	* Visit a field.
	* Call the adapter generating getter and setter methods.
	* @param access : field access.
	* @param name : field name
	* @param desc : field descriptor
	* @param signature : field signature
	* @param value : field value (static field only)
	* @return the field visitor.
	* @see org.objectweb.asm.ClassAdapter#visitField(int, java.lang.String, java.lang.String, java.lang.String, java.lang.Object)
	*/
	public FieldVisitor visitField(int access, String name, String desc, String signature, Object value) {
	// Add the field to the list.
	if (((access & ACC_STATIC) == 0) && (!name.startsWith("class$"))) {
	addFlagField(name);
	m_getterSetterCreator.visitField(access, name, desc, signature, value);
	}

	return super.visitField(access, name, desc, signature, value);
	}

	/**
	* Visit an inner class.
	* @param name : class name
	* @param outerName : outer name
	* @param innerName : inner name
	* @param access : class access
	* @see org.objectweb.asm.ClassAdapter#visitInnerClass(java.lang.String, java.lang.String, java.lang.String, int)
	*/
	public void visitInnerClass(String name, String outerName, String innerName, int access) {
	super.visitInnerClass(name, outerName, innerName, access);
	}

	/**
	* Visit a method.
	* Manipulate constructor and methods. Does nothing with clinit and class$
	* @param access : method access
	* @param name : method name
	* @param desc : method descriptor
	* @param signature : method signature
	* @param exceptions : method exceptions
	* @return the Method Visitor.
	* @see org.objectweb.asm.ClassAdapter#visitMethod(int, java.lang.String, java.lang.String, java.lang.String, java.lang.String[])
	*/
	public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
	// Avoid manipulating special method
	if (name.equals("<clinit>") \|\| name.equals("class$")) { return super.visitMethod(access, name, desc, signature, exceptions); }
	// The constructor is manipulated separately
	if (name.equals("<init>")) {

	// 1) change the constructor descriptor (add a component manager arg as first argument)
	String newDesc = desc.substring(1);
	newDesc = "(Lorg/apache/felix/ipojo/InstanceManager;" + newDesc;

	// Insert the new constructor
	MethodVisitor mv = super.visitMethod(ACC_PUBLIC, "<init>", newDesc, null, null);

	Type[] args = Type.getArgumentTypes(newDesc);
	String id = "$init";
	for (int i = 0; i < args.length; i++) {
	String cn = args[i].getClassName();
	if (cn.endsWith("[]")) {
	cn = cn.replace('[', '$');
	cn = cn.substring(0, cn.length() - 1);
	}
	cn = cn.replace('.', '_');
	id += cn;
	}

	String flag = "_M" + id;
	m_methods.add(id);

	FieldVisitor flagField = cv.visitField(Opcodes.ACC_PRIVATE, flag, "Z", null, null);
	if (flagField != null) {
	flagField.visitEnd();
	}

	if (mv == null) {
	return null;
	} else {
	return new ConstructorCodeAdapter(mv, m_owner, m_fields, access, name, newDesc);
	}
	} else { // "Normal methods"
	// avoid manipulating static methods.
	if ((access & ACC_STATIC) == ACC_STATIC) { return super.visitMethod(access, name, desc, signature, exceptions); }

	Type[] args = Type.getArgumentTypes(desc);
	String id = name;
	for (int i = 0; i < args.length; i++) {
	String cn = args[i].getClassName();
	if (cn.endsWith("[]")) {
	cn = cn.replace('[', '$');
	cn = cn.substring(0, cn.length() - 1);
	}
	cn = cn.replace('.', '_');
	id += cn;
	}

	String flag = "_M" + id;
	m_methods.add(id);

	FieldVisitor flagField = cv.visitField(Opcodes.ACC_PRIVATE, flag, "Z", null, null);
	if (flagField != null) {
	flagField.visitEnd();
	}

	MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
	return new MethodCodeAdapter(mv, m_owner, access, name, desc, m_fields);
	}
	}

	/**
	* Visit an outer class.
	* @param owner : class owner
	* @param name : class name
	* @param desc : class descriptor.
	* @see org.objectweb.asm.ClassAdapter#visitOuterClass(java.lang.String, java.lang.String, java.lang.String)
	*/
	public void visitOuterClass(String owner, String name, String desc) {
	super.visitOuterClass(owner, name, desc);
	}

	/**
	* Visit source.
	* @param source : source
	* @param debug : debug
	* @see org.objectweb.asm.ClassAdapter#visitSource(java.lang.String, java.lang.String)
	*/
	public void visitSource(String source, String debug) {
	super.visitSource(source, debug);
	}

	/**
	* Add the instance manager field (_cm).
	*/
	private void addCMField() {
	// Insert _cm field
	FieldVisitor fv = super.visitField(ACC_PRIVATE, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;", null, null);
	fv.visitEnd();
	}

	/**
	* Add the POJO interface to the visited class.
	* @param version : class version
	* @param access : class access
	* @param name : class name
	* @param signature : class signature
	* @param superName : super class
	* @param interfaces : implemented interfaces.
	*/
	private void addPOJOInterface(int version, int access, String name, String signature, String superName, String[] interfaces) {

	// Add the POJO interface to the interface list
	// Check that the POJO interface is not already in the list
	boolean found = false;
	for (int i = 0; i < interfaces.length; i++) {
	if (interfaces[i].equals(m_pojo)) {
	found = true;
	}
	}
	String[] itfs;
	if (!found) {
	itfs = new String[interfaces.length + 1];
	for (int i = 0; i < interfaces.length; i++) {
	itfs[i] = interfaces[i];
	}
	itfs[interfaces.length] = m_pojo;
	} else {
	itfs = interfaces;
	}

	String str = "";
	for (int i = 0; i < itfs.length; i++) {
	str += itfs[i] + " ";
	}

	cv.visit(version, access, name, signature, superName, itfs);
	}

	/**
	* Create the setter method for the _cm field.
	*/
	private void createComponentManagerSetter() {
	MethodVisitor mv = cv.visitMethod(ACC_PRIVATE, "_setComponentManager", "(Lorg/apache/felix/ipojo/InstanceManager;)V", null, null);

	mv.visitVarInsn(ALOAD, 0);
	mv.visitVarInsn(ALOAD, 1);
	mv.visitFieldInsn(PUTFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");

	mv.visitVarInsn(ALOAD, 0);
	mv.visitFieldInsn(GETFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");
	mv.visitMethodInsn(INVOKEVIRTUAL, "org/apache/felix/ipojo/InstanceManager", "getRegistredFields", "()Ljava/util/Set;");
	mv.visitVarInsn(ASTORE, 2);

	mv.visitVarInsn(ALOAD, 2);
	Label endif = new Label();
	mv.visitJumpInsn(IFNULL, endif);
	Iterator it = m_fields.iterator();
	while (it.hasNext()) {
	String field = (String) it.next();
	mv.visitVarInsn(ALOAD, 2);
	mv.visitLdcInsn(field);
	mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Set", "contains", "(Ljava/lang/Object;)Z");
	Label l3 = new Label();
	mv.visitJumpInsn(IFEQ, l3);
	mv.visitVarInsn(ALOAD, 0);
	mv.visitInsn(ICONST_1);
	mv.visitFieldInsn(PUTFIELD, m_owner, "_F" + field, "Z");
	mv.visitLabel(l3);
	}
	mv.visitLabel(endif);

	mv.visitVarInsn(ALOAD, 0);
	mv.visitFieldInsn(GETFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");
	mv.visitMethodInsn(INVOKEVIRTUAL, "org/apache/felix/ipojo/InstanceManager", "getRegistredMethods", "()Ljava/util/Set;");
	mv.visitVarInsn(ASTORE, 2);

	mv.visitVarInsn(ALOAD, 2);
	Label endif2 = new Label();
	mv.visitJumpInsn(IFNULL, endif2);

	for (int i = 0; i < m_methods.size(); i++) {
	String methodId = (String) m_methods.get(i);
	mv.visitVarInsn(ALOAD, 2);
	mv.visitLdcInsn(methodId);
	mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Set", "contains", "(Ljava/lang/Object;)Z");
	Label l3 = new Label();
	mv.visitJumpInsn(IFEQ, l3);
	mv.visitVarInsn(ALOAD, 0);
	mv.visitInsn(ICONST_1);
	mv.visitFieldInsn(PUTFIELD, m_owner, "_M" + methodId, "Z");
	mv.visitLabel(l3);
	}

	mv.visitLabel(endif2);

	mv.visitInsn(RETURN);

	mv.visitMaxs(0, 0);
	mv.visitEnd();
	}

	/**
	* Create the getComponentInstance method.
	*/
	private void createGetComponentInstanceMethod() {
	MethodVisitor mv = cv.visitMethod(ACC_PUBLIC, "getComponentInstance", "()Lorg/apache/felix/ipojo/ComponentInstance;", null, null);

	mv.visitVarInsn(ALOAD, 0);
	mv.visitFieldInsn(GETFIELD, m_owner, "_cm", "Lorg/apache/felix/ipojo/InstanceManager;");
	mv.visitInsn(ARETURN);

	mv.visitMaxs(0, 0);
	mv.visitEnd();
	}

	/**
	* Add the flag field.
	* @param name : name of the field
	*/
	private void addFlagField(String name) {
	// Add the flag field
	FieldVisitor flag = cv.visitField(Opcodes.ACC_PRIVATE, "_F" + name, "Z", null, null);
	if (flag != null) {
	flag.visitEnd();
	}
	}

	}