/*******************************************************************************
* Copyright (c) 2004, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.core.util;
import org.aspectj.org.eclipse.jdt.core.util.ClassFormatException;
import org.aspectj.org.eclipse.jdt.core.util.IAnnotation;
import org.aspectj.org.eclipse.jdt.core.util.IAnnotationComponent;
import org.aspectj.org.eclipse.jdt.core.util.IConstantPool;
import org.aspectj.org.eclipse.jdt.core.util.IConstantPoolConstant;
import org.aspectj.org.eclipse.jdt.core.util.IConstantPoolEntry;
/**
* Default implementation of IAnnotation
*/
public class Annotation extends ClassFileStruct implements IAnnotation {
private static final IAnnotationComponent[] NO_ENTRIES = new IAnnotationComponent[0];
private int typeIndex;
private char[] typeName;
private int componentsNumber;
private IAnnotationComponent[] components;
private int readOffset;
/**
* Constructor for Annotation.
*
* @param classFileBytes
* @param constantPool
* @param offset
* @throws ClassFormatException
*/
public Annotation(
byte[] classFileBytes,
IConstantPool constantPool,
int offset) throws ClassFormatException {
final int index = u2At(classFileBytes, 0, offset);
this.typeIndex = index;
if (index != 0) {
IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
this.typeName = constantPoolEntry.getUtf8Value();
} else {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
final int length = u2At(classFileBytes, 2, offset);
this.componentsNumber = length;
this.readOffset = 4;
if (length != 0) {
this.components = new IAnnotationComponent[length];
for (int i = 0; i < length; i++) {
AnnotationComponent component = new AnnotationComponent(classFileBytes, constantPool, offset + readOffset);
this.components[i] = component;
this.readOffset += component.sizeInBytes();
}
} else {
this.components = NO_ENTRIES;
}
}
/* (non-Javadoc)
* @see org.aspectj.org.eclipse.jdt.core.util.IAnnotation#getTypeIndex()
*/
public int getTypeIndex() {
return this.typeIndex;
}
/* (non-Javadoc)
* @see org.aspectj.org.eclipse.jdt.core.util.IAnnotation#getComponentsNumber()
*/
public int getComponentsNumber() {
return this.componentsNumber;
}
/* (non-Javadoc)
* @see org.aspectj.org.eclipse.jdt.core.util.IAnnotation#getComponents()
*/
public IAnnotationComponent[] getComponents() {
return this.components;
}
int sizeInBytes() {
return this.readOffset;
}
/* (non-Javadoc)
* @see org.aspectj.org.eclipse.jdt.core.util.IAnnotation#getTypeName()
*/
public char[] getTypeName() {
return this.typeName;
}
}