diff options
Diffstat (limited to 'bundles/org.eclipse.wst.dtd.core/src/org/eclipse/wst/dtd/core/internal/util/DTDReferenceUpdater.java')
| -rw-r--r-- | bundles/org.eclipse.wst.dtd.core/src/org/eclipse/wst/dtd/core/internal/util/DTDReferenceUpdater.java | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/bundles/org.eclipse.wst.dtd.core/src/org/eclipse/wst/dtd/core/internal/util/DTDReferenceUpdater.java b/bundles/org.eclipse.wst.dtd.core/src/org/eclipse/wst/dtd/core/internal/util/DTDReferenceUpdater.java deleted file mode 100644 index 26931d88db..0000000000 --- a/bundles/org.eclipse.wst.dtd.core/src/org/eclipse/wst/dtd/core/internal/util/DTDReferenceUpdater.java +++ /dev/null @@ -1,196 +0,0 @@ -/******************************************************************************* - * 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.ArrayList; -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.CMBasicNode; -import org.eclipse.wst.dtd.core.internal.DTDFile; -import org.eclipse.wst.dtd.core.internal.DTDNode; -import org.eclipse.wst.dtd.core.internal.Element; -import org.eclipse.wst.dtd.core.internal.Entity; -import org.eclipse.wst.dtd.core.internal.Notation; -import org.eclipse.wst.dtd.core.internal.ParameterEntityReference; - - -// this class is responsible for updating any dtd node in -// response to a change in the node that they reference -public class DTDReferenceUpdater extends DTDVisitor { - protected boolean isNotation = false; - - protected boolean isParmEntity = false; - - protected boolean isUpdating = false; - protected String newName = ""; //$NON-NLS-1$ - protected String oldRefName = "", newRefName = ""; //$NON-NLS-1$ //$NON-NLS-2$ - protected DTDNode referencedNode = null; - - // the references List is a cache of the DTDNodes that are changed - // as a result of a call to nameAboutToChange(). The idea is that - // if a subsequent call comes in that changes the name of the same - // object for which this cache exists for, then we optimize the - // path by just walking the cache - private List references = new ArrayList(); - protected Object requestor; - - public DTDReferenceUpdater() { - - } - - public void clearCache() { - referencedNode = null; - references.clear(); - } - - public synchronized void nameAboutToChange(Object requestor, DTDNode referencedNode, String newName) { - if (isUpdating) { - return; - } - if (!(referencedNode instanceof Entity || referencedNode instanceof Element || referencedNode instanceof Notation)) { - // just ignore if it is not one of these - return; - } - if (referencedNode instanceof Entity && !((Entity) referencedNode).isParameterEntity()) { - // if it is not a parameter entity, ignore as well - return; - } - - isUpdating = true; - this.requestor = requestor; - oldRefName = referencedNode.getName(); - this.newName = newRefName = newName; - isParmEntity = false; - isNotation = referencedNode instanceof Notation; - - if (referencedNode instanceof Entity) { - isParmEntity = true; - oldRefName = "%" + oldRefName + ";"; //$NON-NLS-1$ //$NON-NLS-2$ - newRefName = "%" + newRefName + ";"; //$NON-NLS-1$ //$NON-NLS-2$ - } - - if (this.referencedNode != null) { - // check if the previous referenced node that was changed - // is the same as the one that is coming in. if so, just - // change the previous regions - if (this.referencedNode == referencedNode) { - quickUpdate(); - isUpdating = false; - return; - } - } - - // clear the cache if we get here - this.referencedNode = referencedNode; - references.clear(); - DTDFile dtdFile = referencedNode.getDTDFile(); - visit(dtdFile); - isUpdating = false; - } - - protected void quickUpdate() { - for (int i = 0; i < references.size(); i++) { - DTDNode node = (DTDNode) references.get(i); - if (node instanceof Element) { - visitElement((Element) node); - } - else if (node instanceof AttributeList) { - visitAttributeList((AttributeList) node); - } - else if (node instanceof Attribute) { - visitAttribute((Attribute) node); - } - else if (node instanceof CMBasicNode) { - visitReference((CMBasicNode) node); - } - else if (node instanceof ParameterEntityReference) { - visitExternalParameterEntityReference((ParameterEntityReference) node); - } - } - } - - public void visitAttribute(Attribute attr) { - super.visitAttribute(attr); - if (isParmEntity) { - // check the attr name and the attr type to see if it - // needs updating - if (attr.getName().equals(oldRefName)) { - attr.setName(requestor, newRefName); - references.add(attr); - } - if (attr.getType().equals(oldRefName)) { - attr.setType(requestor, newRefName); - references.add(attr); - } - } - else if (isNotation && attr.getType().equals(Attribute.ENUMERATED_NOTATION)) { - AttributeEnumList enumList = attr.getEnumList(); - List items = enumList.getItems(); - boolean updateNeeded = false; - for (int i = 0; i < items.size(); i++) { - String notationName = (String) items.get(i); - if (notationName.equals(oldRefName)) { - updateNeeded = true; - items.set(i, newName); - } - } - if (updateNeeded) { - String[] newItems = new String[items.size()]; - - enumList.setItems((String[]) items.toArray(newItems)); - } - } - - } - - public void visitAttributeList(AttributeList attList) { - if (!isNotation && attList.getName().equals(oldRefName)) { - attList.setName(requestor, newRefName); - references.add(attList); - } - super.visitAttributeList(attList); - } - - public void visitElement(Element element) { - if (isParmEntity) { - if (element.getName().equals(oldRefName)) { - element.setName(requestor, newRefName); - references.add(element); - } - } - super.visitElement(element); - } - - public void visitExternalParameterEntityReference(ParameterEntityReference parmEntityRef) { - super.visitExternalParameterEntityReference(parmEntityRef); - if (parmEntityRef.getName().equals(oldRefName)) { - parmEntityRef.setReferencedEntity(requestor, newName); - references.add(parmEntityRef); - } - } - - public void visitReference(CMBasicNode node) { - super.visitReference(node); - if (isParameterEntityRef(oldRefName) && !isParmEntity) { - return; - } - - if (node.getName().equals(oldRefName)) { - node.setName(requestor, newRefName); - references.add(node); - } - } -} |