| /******************************************************************************* |
| * Copyright (c) 2001, 2004 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 |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.dtd.core.internal.util; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.wst.dtd.core.internal.Attribute; |
| import org.eclipse.wst.dtd.core.internal.AttributeEnumList; |
| import org.eclipse.wst.dtd.core.internal.AttributeList; |
| import org.eclipse.wst.dtd.core.internal.DTDFile; |
| import org.eclipse.wst.dtd.core.internal.DTDNode; |
| import org.eclipse.wst.dtd.core.internal.Entity; |
| import org.eclipse.wst.dtd.core.internal.Notation; |
| |
| |
| public class DTDNotationReferenceRemover { |
| protected Notation notation; |
| protected String notationName; |
| |
| protected Object requestor; |
| |
| public DTDNotationReferenceRemover() { |
| |
| } |
| |
| public void notationAboutToBeDeleted(Object requestor, Notation notation) { |
| this.requestor = requestor; |
| this.notation = notation; |
| notationName = notation.getName(); |
| |
| visit(notation.getDTDFile()); |
| } |
| |
| public void visit(DTDFile file) { |
| List nodes = file.getNodes(); |
| for (int i = 0; i < nodes.size(); i++) { |
| DTDNode currentNode = (DTDNode) nodes.get(i); |
| if (currentNode instanceof Entity) { |
| visitEntity((Entity) currentNode); |
| } |
| else if (currentNode instanceof AttributeList) { |
| visitAttributeList((AttributeList) currentNode); |
| } |
| } |
| } |
| |
| public void visitAttribute(Attribute attr) { |
| if (attr.getType().equals(Attribute.ENUMERATED_NOTATION)) { |
| AttributeEnumList enumList = attr.getEnumList(); |
| List notationNames = enumList.getItems(); |
| Iterator iter = notationNames.iterator(); |
| boolean updateRequired = false; |
| while (iter.hasNext()) { |
| String notation = (String) iter.next(); |
| if (notation.equals(notationName)) { |
| updateRequired = true; |
| iter.remove(); |
| } |
| } |
| if (updateRequired) { |
| String[] newItems = new String[notationNames.size()]; |
| notationNames.toArray(newItems); |
| enumList.setItems(requestor, newItems); |
| } |
| } |
| } |
| |
| public void visitAttributeList(AttributeList attList) { |
| Attribute attr = (Attribute) attList.getFirstChild(); |
| while (attr != null) { |
| visitAttribute(attr); |
| attr = (Attribute) attr.getNextSibling(); |
| } |
| } |
| |
| public void visitEntity(Entity entity) { |
| if (entity.getNotationName().equals(notationName)) { |
| entity.setNotationName(requestor, ""); //$NON-NLS-1$ |
| } |
| } |
| |
| }// DTDNotationRemover |