bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/java/AnnotationComponentValue.java - equinox/rt.equinox.p2 - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009 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.eclipse.equinox.p2.internal.repository.comparator.java;

 public class AnnotationComponentValue extends ClassFileStruct {
 	/**
 	 * Tag value for a constant of type <code>byte</code>
 	 * @since 3.1
 	 */
 	public static final int BYTE_TAG = 'B';
 	/**
 	 * Tag value for a constant of type <code>char</code>
 	 * @since 3.1
 	 */
 	public static final int CHAR_TAG = 'C';
 	/**
 	 * Tag value for a constant of type <code>double</code>
 	 * @since 3.1
 	 */
 	public static final int DOUBLE_TAG = 'D';
 	/**
 	 * Tag value for a constant of type <code>float</code>
 	 * @since 3.1
 	 */
 	public static final int FLOAT_TAG = 'F';
 	/**
 	 * Tag value for a constant of type <code>int</code>
 	 * @since 3.1
 	 */
 	public static final int INTEGER_TAG = 'I';
 	/**
 	 * Tag value for a constant of type <code>long</code>
 	 * @since 3.1
 	 */
 	public static final int LONG_TAG = 'J';
 	/**
 	 * Tag value for a constant of type <code>short</code>
 	 * @since 3.1
 	 */
 	public static final int SHORT_TAG = 'S';
 	/**
 	 * Tag value for a constant of type <code>boolean</code>
 	 * @since 3.1
 	 */
 	public static final int BOOLEAN_TAG = 'Z';
 	/**
 	 * Tag value for a constant of type <code>java.lang.String</code>
 	 * @since 3.1
 	 */
 	public static final int STRING_TAG = 's';
 	/**
 	 * Tag value for a value that represents an enum constant
 	 * @since 3.1
 	 */
 	public static final int ENUM_TAG = 'e';
 	/**
 	 * Tag value for a value that represents a class
 	 * @since 3.1
 	 */
 	public static final int CLASS_TAG = 'c';
 	/**
 	 * Tag value for a value that represents an annotation
 	 * @since 3.1
 	 */
 	public static final int ANNOTATION_TAG = '@';
 	/**
 	 * Tag value for a value that represents an array
 	 * @since 3.1
 	 */
 	public static final int ARRAY_TAG = '[';

 	private static final AnnotationComponentValue[] NO_VALUES = new AnnotationComponentValue[0];

 	private AnnotationComponentValue[] annotationComponentValues;
 	private Annotation annotationValue;
 	private ConstantPoolEntry classInfo;
 	private int classFileInfoIndex;
 	private ConstantPoolEntry constantValue;
 	private int constantValueIndex;
 	private int enumConstantTypeNameIndex;
 	private int enumConstantNameIndex;
 	private char[] enumConstantTypeName;
 	private char[] enumConstantName;

 	private int readOffset;
 	private int tag;
 	private int valuesNumber;

 	public AnnotationComponentValue(byte[] classFileBytes, ConstantPool constantPool, int offset) throws ClassFormatException {
 		this.classFileInfoIndex = -1;
 		this.constantValueIndex = -1;
 		this.enumConstantTypeNameIndex = -1;
 		this.enumConstantNameIndex = -1;
 		final int t = u1At(classFileBytes, 0, offset);
 		this.tag = t;
 		this.readOffset = 1;
 		switch (t) {
 			case 'B' :
 			case 'C' :
 			case 'D' :
 			case 'F' :
 			case 'I' :
 			case 'J' :
 			case 'S' :
 			case 'Z' :
 			case 's' :
 				final int constantIndex = u2At(classFileBytes, this.readOffset, offset);
 				this.constantValueIndex = constantIndex;
 				if (constantIndex != 0) {
 					ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(constantIndex);
 					switch (constantPoolEntry.getKind()) {
 						case ConstantPoolConstant.CONSTANT_Long :
 						case ConstantPoolConstant.CONSTANT_Float :
 						case ConstantPoolConstant.CONSTANT_Double :
 						case ConstantPoolConstant.CONSTANT_Integer :
 						case ConstantPoolConstant.CONSTANT_Utf8 :
 							break;
 						default :
 							throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
 					}
 					this.constantValue = constantPoolEntry;
 				}
 				this.readOffset += 2;
 				break;
 			case 'e' :
 				int index = u2At(classFileBytes, this.readOffset, offset);
 				this.enumConstantTypeNameIndex = index;
 				if (index != 0) {
 					ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index);
 					if (constantPoolEntry.getKind() != ConstantPoolConstant.CONSTANT_Utf8) {
 						throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
 					}
 					this.enumConstantTypeName = constantPoolEntry.getUtf8Value();
 				}
 				this.readOffset += 2;
 				index = u2At(classFileBytes, this.readOffset, offset);
 				this.enumConstantNameIndex = index;
 				if (index != 0) {
 					ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index);
 					if (constantPoolEntry.getKind() != ConstantPoolConstant.CONSTANT_Utf8) {
 						throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
 					}
 					this.enumConstantName = constantPoolEntry.getUtf8Value();
 				}
 				this.readOffset += 2;
 				break;
 			case 'c' :
 				final int classFileIndex = u2At(classFileBytes, this.readOffset, offset);
 				this.classFileInfoIndex = classFileIndex;
 				if (classFileIndex != 0) {
 					ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(classFileIndex);
 					if (constantPoolEntry.getKind() != ConstantPoolConstant.CONSTANT_Utf8) {
 						throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
 					}
 					this.classInfo = constantPoolEntry;
 				}
 				this.readOffset += 2;
 				break;
 			case '@' :
 				Annotation annotation = new Annotation(classFileBytes, constantPool, this.readOffset + offset);
 				this.annotationValue = annotation;
 				this.readOffset += annotation.sizeInBytes();
 				break;
 			case '[' :
 				final int numberOfValues = u2At(classFileBytes, this.readOffset, offset);
 				this.valuesNumber = numberOfValues;
 				this.readOffset += 2;
 				if (numberOfValues != 0) {
 					this.annotationComponentValues = new AnnotationComponentValue[numberOfValues];
 					for (int i = 0; i < numberOfValues; i++) {
 						AnnotationComponentValue value = new AnnotationComponentValue(classFileBytes, constantPool, offset + this.readOffset);
 						this.annotationComponentValues[i] = value;
 						this.readOffset += value.sizeInBytes();
 					}
 				} else {
 					this.annotationComponentValues = NO_VALUES;
 				}
 				break;
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getAnnotationComponentValues()
 	 */
 	public AnnotationComponentValue[] getAnnotationComponentValues() {
 		return this.annotationComponentValues;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getAnnotationValue()
 	 */
 	public Annotation getAnnotationValue() {
 		return this.annotationValue;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getClassInfo()
 	 */
 	public ConstantPoolEntry getClassInfo() {
 		return this.classInfo;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getClassInfoIndex()
 	 */
 	public int getClassInfoIndex() {
 		return this.classFileInfoIndex;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getConstantValue()
 	 */
 	public ConstantPoolEntry getConstantValue() {
 		return this.constantValue;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getConstantValueIndex()
 	 */
 	public int getConstantValueIndex() {
 		return this.constantValueIndex;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantName()
 	 */
 	public char[] getEnumConstantName() {
 		return this.enumConstantName;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantNameIndex()
 	 */
 	public int getEnumConstantNameIndex() {
 		return this.enumConstantNameIndex;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantTypeName()
 	 */
 	public char[] getEnumConstantTypeName() {
 		return this.enumConstantTypeName;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantTypeNameIndex()
 	 */
 	public int getEnumConstantTypeNameIndex() {
 		return this.enumConstantTypeNameIndex;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getTag()
 	 */
 	public int getTag() {
 		return this.tag;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getValuesNumber()
 	 */
 	public int getValuesNumber() {
 		return this.valuesNumber;
 	}

 	int sizeInBytes() {
 		return this.readOffset;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2009 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.eclipse.equinox.p2.internal.repository.comparator.java;

	public class AnnotationComponentValue extends ClassFileStruct {
	/**
	* Tag value for a constant of type <code>byte</code>
	* @since 3.1
	*/
	public static final int BYTE_TAG = 'B';
	/**
	* Tag value for a constant of type <code>char</code>
	* @since 3.1
	*/
	public static final int CHAR_TAG = 'C';
	/**
	* Tag value for a constant of type <code>double</code>
	* @since 3.1
	*/
	public static final int DOUBLE_TAG = 'D';
	/**
	* Tag value for a constant of type <code>float</code>
	* @since 3.1
	*/
	public static final int FLOAT_TAG = 'F';
	/**
	* Tag value for a constant of type <code>int</code>
	* @since 3.1
	*/
	public static final int INTEGER_TAG = 'I';
	/**
	* Tag value for a constant of type <code>long</code>
	* @since 3.1
	*/
	public static final int LONG_TAG = 'J';
	/**
	* Tag value for a constant of type <code>short</code>
	* @since 3.1
	*/
	public static final int SHORT_TAG = 'S';
	/**
	* Tag value for a constant of type <code>boolean</code>
	* @since 3.1
	*/
	public static final int BOOLEAN_TAG = 'Z';
	/**
	* Tag value for a constant of type <code>java.lang.String</code>
	* @since 3.1
	*/
	public static final int STRING_TAG = 's';
	/**
	* Tag value for a value that represents an enum constant
	* @since 3.1
	*/
	public static final int ENUM_TAG = 'e';
	/**
	* Tag value for a value that represents a class
	* @since 3.1
	*/
	public static final int CLASS_TAG = 'c';
	/**
	* Tag value for a value that represents an annotation
	* @since 3.1
	*/
	public static final int ANNOTATION_TAG = '@';
	/**
	* Tag value for a value that represents an array
	* @since 3.1
	*/
	public static final int ARRAY_TAG = '[';

	private static final AnnotationComponentValue[] NO_VALUES = new AnnotationComponentValue[0];

	private AnnotationComponentValue[] annotationComponentValues;
	private Annotation annotationValue;
	private ConstantPoolEntry classInfo;
	private int classFileInfoIndex;
	private ConstantPoolEntry constantValue;
	private int constantValueIndex;
	private int enumConstantTypeNameIndex;
	private int enumConstantNameIndex;
	private char[] enumConstantTypeName;
	private char[] enumConstantName;

	private int readOffset;
	private int tag;
	private int valuesNumber;

	public AnnotationComponentValue(byte[] classFileBytes, ConstantPool constantPool, int offset) throws ClassFormatException {
	this.classFileInfoIndex = -1;
	this.constantValueIndex = -1;
	this.enumConstantTypeNameIndex = -1;
	this.enumConstantNameIndex = -1;
	final int t = u1At(classFileBytes, 0, offset);
	this.tag = t;
	this.readOffset = 1;
	switch (t) {
	case 'B' :
	case 'C' :
	case 'D' :
	case 'F' :
	case 'I' :
	case 'J' :
	case 'S' :
	case 'Z' :
	case 's' :
	final int constantIndex = u2At(classFileBytes, this.readOffset, offset);
	this.constantValueIndex = constantIndex;
	if (constantIndex != 0) {
	ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(constantIndex);
	switch (constantPoolEntry.getKind()) {
	case ConstantPoolConstant.CONSTANT_Long :
	case ConstantPoolConstant.CONSTANT_Float :
	case ConstantPoolConstant.CONSTANT_Double :
	case ConstantPoolConstant.CONSTANT_Integer :
	case ConstantPoolConstant.CONSTANT_Utf8 :
	break;
	default :
	throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
	}
	this.constantValue = constantPoolEntry;
	}
	this.readOffset += 2;
	break;
	case 'e' :
	int index = u2At(classFileBytes, this.readOffset, offset);
	this.enumConstantTypeNameIndex = index;
	if (index != 0) {
	ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index);
	if (constantPoolEntry.getKind() != ConstantPoolConstant.CONSTANT_Utf8) {
	throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
	}
	this.enumConstantTypeName = constantPoolEntry.getUtf8Value();
	}
	this.readOffset += 2;
	index = u2At(classFileBytes, this.readOffset, offset);
	this.enumConstantNameIndex = index;
	if (index != 0) {
	ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index);
	if (constantPoolEntry.getKind() != ConstantPoolConstant.CONSTANT_Utf8) {
	throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
	}
	this.enumConstantName = constantPoolEntry.getUtf8Value();
	}
	this.readOffset += 2;
	break;
	case 'c' :
	final int classFileIndex = u2At(classFileBytes, this.readOffset, offset);
	this.classFileInfoIndex = classFileIndex;
	if (classFileIndex != 0) {
	ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(classFileIndex);
	if (constantPoolEntry.getKind() != ConstantPoolConstant.CONSTANT_Utf8) {
	throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
	}
	this.classInfo = constantPoolEntry;
	}
	this.readOffset += 2;
	break;
	case '@' :
	Annotation annotation = new Annotation(classFileBytes, constantPool, this.readOffset + offset);
	this.annotationValue = annotation;
	this.readOffset += annotation.sizeInBytes();
	break;
	case '[' :
	final int numberOfValues = u2At(classFileBytes, this.readOffset, offset);
	this.valuesNumber = numberOfValues;
	this.readOffset += 2;
	if (numberOfValues != 0) {
	this.annotationComponentValues = new AnnotationComponentValue[numberOfValues];
	for (int i = 0; i < numberOfValues; i++) {
	AnnotationComponentValue value = new AnnotationComponentValue(classFileBytes, constantPool, offset + this.readOffset);
	this.annotationComponentValues[i] = value;
	this.readOffset += value.sizeInBytes();
	}
	} else {
	this.annotationComponentValues = NO_VALUES;
	}
	break;
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getAnnotationComponentValues()
	*/
	public AnnotationComponentValue[] getAnnotationComponentValues() {
	return this.annotationComponentValues;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getAnnotationValue()
	*/
	public Annotation getAnnotationValue() {
	return this.annotationValue;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getClassInfo()
	*/
	public ConstantPoolEntry getClassInfo() {
	return this.classInfo;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getClassInfoIndex()
	*/
	public int getClassInfoIndex() {
	return this.classFileInfoIndex;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getConstantValue()
	*/
	public ConstantPoolEntry getConstantValue() {
	return this.constantValue;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getConstantValueIndex()
	*/
	public int getConstantValueIndex() {
	return this.constantValueIndex;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantName()
	*/
	public char[] getEnumConstantName() {
	return this.enumConstantName;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantNameIndex()
	*/
	public int getEnumConstantNameIndex() {
	return this.enumConstantNameIndex;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantTypeName()
	*/
	public char[] getEnumConstantTypeName() {
	return this.enumConstantTypeName;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getEnumConstantTypeNameIndex()
	*/
	public int getEnumConstantTypeNameIndex() {
	return this.enumConstantTypeNameIndex;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getTag()
	*/
	public int getTag() {
	return this.tag;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.core.util.IAnnotationComponentValue#getValuesNumber()
	*/
	public int getValuesNumber() {
	return this.valuesNumber;
	}

	int sizeInBytes() {
	return this.readOffset;
	}
	}