| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.compare.examples.xml; |
| |
| import org.eclipse.compare.CompareUI; |
| import org.eclipse.compare.ITypedElement; |
| import org.eclipse.compare.structuremergeviewer.DocumentRangeNode; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.swt.graphics.Image; |
| |
| /** |
| * Objects that make up the parse tree. |
| */ |
| public class XMLNode extends DocumentRangeNode implements ITypedElement { |
| |
| private String fValue; |
| private String fName; |
| private String fSignature; |
| private String fOrigId; |
| private XMLNode parent; |
| private String fXMLType; |
| private boolean fUsesIDMAP; |
| private boolean fOrderedChild; |
| |
| public int bodies; // counts the number of bodies |
| |
| public XMLNode(String XMLType, String id, String value, String signature, IDocument doc, int start, int length) { |
| super(0, id, doc, start, length); |
| fXMLType= XMLType; |
| fValue= value; |
| fSignature= signature; |
| fOrigId= id; |
| if (XMLStructureCreator.DEBUG_MODE) |
| System.out.println("Created XMLNode with XMLType: " + XMLType + ", id: " + id + ", value: " + value + ", signature: " + fSignature); //$NON-NLS-1$ //$NON-NLS-4$ //$NON-NLS-3$ //$NON-NLS-2$ |
| bodies= 0; |
| fUsesIDMAP= false; |
| fOrderedChild= false; |
| } |
| |
| void setValue(String value) { |
| fValue= value; |
| } |
| |
| String getValue() { |
| return fValue; |
| } |
| |
| @Override |
| public String getName() { |
| if (fName != null) |
| return fName; |
| return this.getId(); |
| } |
| |
| public void setName(String name) { |
| fName= name; |
| } |
| |
| /* |
| * Every xml node is of type "txt" so that the builtin TextMergeViewer is used automatically. |
| * @see ITypedElement#getType |
| */ |
| @Override |
| public String getType() { |
| return "txt"; //$NON-NLS-1$ |
| } |
| |
| public void setIsOrderedChild(boolean isOrderedChild) { |
| fOrderedChild= isOrderedChild; |
| } |
| |
| @Override |
| public Image getImage() { |
| if (fOrderedChild) |
| return CompareUI.getImage(XMLPlugin.IMAGE_TYPE_PREFIX + XMLStructureCreator.TYPE_ELEMENT + XMLPlugin.IMAGE_TYPE_ORDERED_SUFFIX); |
| return CompareUI.getImage(XMLPlugin.IMAGE_TYPE_PREFIX + getXMLType()); |
| } |
| |
| public void setParent(XMLNode parent0) { |
| this.parent= parent0; |
| } |
| |
| public XMLNode getParent() { |
| return this.parent; |
| } |
| |
| String getXMLType() { |
| return fXMLType; |
| } |
| |
| String getSignature() { |
| return fSignature; |
| } |
| |
| void setOrigId(String id) { |
| fOrigId= id; |
| } |
| |
| public String getOrigId() { |
| return fOrigId; |
| } |
| |
| public void setUsesIDMAP(boolean b) { |
| fUsesIDMAP= b; |
| } |
| |
| public boolean usesIDMAP() { |
| return fUsesIDMAP; |
| } |
| |
| //for tests |
| public boolean testEquals(Object obj) { |
| if (obj instanceof XMLNode) { |
| XMLNode n= (XMLNode) obj; |
| return fValue.equals(n.getValue()) |
| && fSignature.equals(n.getSignature()) |
| && fXMLType.equals(n.getXMLType()) |
| && fUsesIDMAP == n.usesIDMAP(); |
| } |
| return false; |
| } |
| |
| /* |
| * Returns true if the subtree rooted at this node is equals to the subtree rooted at <code>obj</code> |
| */ |
| public boolean subtreeEquals(Object obj) { |
| if (!testEquals(obj)) |
| return false; |
| if (obj instanceof XMLNode) { |
| XMLNode n= (XMLNode) obj; |
| if (getXMLType().equals(XMLStructureCreator.TYPE_ATTRIBUTE) |
| && n.getXMLType().equals(XMLStructureCreator.TYPE_ATTRIBUTE)) |
| return true; |
| Object[] children= getChildren(); |
| Object[] n_children= n.getChildren(); |
| //if both nodes have no children, return true; |
| if ((children == null || children.length <= 0) |
| && (n_children == null || n_children.length <= 0)) |
| return true; |
| //now at least one of the two nodes has children; |
| /* so if one of the two nodes has no children, or they don't have the same number of children, |
| * return false; |
| */ |
| if ((children == null || children.length <= 0) |
| || (n_children == null || n_children.length <= 0) |
| || (children.length != n_children.length)) |
| return false; |
| //now both have children and the same number of children |
| for (int i= 0; i < children.length; i++) { |
| /* if the subtree rooted at children[i] is not equal to the subtree rooted at n_children[i], |
| * return false |
| */ |
| if (!((XMLNode) children[i]).subtreeEquals(n_children[i])) |
| return false; |
| } |
| } |
| return true; |
| } |
| } |