diff options
Diffstat (limited to 'bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/java/Annotation.java')
-rw-r--r-- | bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/java/Annotation.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/java/Annotation.java b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/java/Annotation.java new file mode 100644 index 000000000..db3fea4ce --- /dev/null +++ b/bundles/org.eclipse.equinox.p2.repository.tools/src/org/eclipse/equinox/p2/internal/repository/comparator/java/Annotation.java @@ -0,0 +1,90 @@ +/******************************************************************************* + * 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 Annotation extends ClassFileStruct { + + private static final AnnotationComponent[] NO_ENTRIES = new AnnotationComponent[0]; + + private int typeIndex; + private char[] typeName; + private int componentsNumber; + private AnnotationComponent[] components; + private int readOffset; + + /** + * Constructor for Annotation. + * + * @param classFileBytes + * @param constantPool + * @param offset + * @throws ClassFormatException + */ + public Annotation(byte[] classFileBytes, ConstantPool constantPool, int offset) throws ClassFormatException { + + final int index = u2At(classFileBytes, 0, offset); + this.typeIndex = index; + if (index != 0) { + ConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index); + if (constantPoolEntry.getKind() != ConstantPoolConstant.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 AnnotationComponent[length]; + for (int i = 0; i < length; i++) { + AnnotationComponent component = new AnnotationComponent(classFileBytes, constantPool, offset + this.readOffset); + this.components[i] = component; + this.readOffset += component.sizeInBytes(); + } + } else { + this.components = NO_ENTRIES; + } + } + + /* (non-Javadoc) + * @see org.eclipse.jdt.core.util.IAnnotation#getTypeIndex() + */ + public int getTypeIndex() { + return this.typeIndex; + } + + /* (non-Javadoc) + * @see org.eclipse.jdt.core.util.IAnnotation#getComponentsNumber() + */ + public int getComponentsNumber() { + return this.componentsNumber; + } + + /* (non-Javadoc) + * @see org.eclipse.jdt.core.util.IAnnotation#getComponents() + */ + public AnnotationComponent[] getComponents() { + return this.components; + } + + int sizeInBytes() { + return this.readOffset; + } + + /* (non-Javadoc) + * @see org.eclipse.jdt.core.util.IAnnotation#getTypeName() + */ + public char[] getTypeName() { + return this.typeName; + } +} |