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;
+	}
+}