/*******************************************************************************
* Copyright (c) 2002, 2008 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.xml.core.internal.contentmodel.util;
import java.util.Stack;
import org.eclipse.wst.xml.core.internal.contentmodel.CMAnyElement;
import org.eclipse.wst.xml.core.internal.contentmodel.CMAttributeDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMDataType;
import org.eclipse.wst.xml.core.internal.contentmodel.CMDocument;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMGroup;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNodeList;
public class CMVisitor
{
protected int indent = 0;
protected Stack visitedCMGroupStack = new Stack();
public void visitCMNode(CMNode node)
{
if (node != null)
{
//ContentModelManager.printlnIndented("visitCMNode : " + node.getNodeName() + " " + node);
indent += 2;
int nodeType = node.getNodeType();
switch (nodeType)
{
case CMNode.ANY_ELEMENT :
{
visitCMAnyElement((CMAnyElement)node);
break;
}
case CMNode.ATTRIBUTE_DECLARATION :
{
visitCMAttributeDeclaration((CMAttributeDeclaration)node);
break;
}
case CMNode.DATA_TYPE :
{
visitCMDataType((CMDataType)node);
break;
}
case CMNode.DOCUMENT :
{
visitCMDocument((CMDocument)node);
break;
}
case CMNode.ELEMENT_DECLARATION :
{
visitCMElementDeclaration((CMElementDeclaration)node);
break;
}
case CMNode.GROUP :
{
CMGroup group = (CMGroup)node;
// This is to prevent recursion.
if (visitedCMGroupStack.contains(group))
{
break;
}
// Push the current group to check later to avoid potential recursion
visitedCMGroupStack.push(group);
visitCMGroup(group);
// Pop the current group
visitedCMGroupStack.pop();
break;
}
}
indent -= 2;
}
}
public void visitCMAnyElement(CMAnyElement anyElement)
{
}
public void visitCMAttributeDeclaration(CMAttributeDeclaration ad)
{
}
public void visitCMDataType(CMDataType dataType)
{
}
public void visitCMDocument(CMDocument document)
{
CMNamedNodeMap map = document.getElements();
int size = map.getLength();
for (int i = 0; i < size; i++)
{
visitCMNode(map.item(i));
}
}
public void visitCMGroup(CMGroup group)
{
CMNodeList nodeList = group.getChildNodes();
int size = nodeList.getLength();
for (int i = 0; i < size; i++)
{
visitCMNode(nodeList.item(i));
}
}
public void visitCMElementDeclaration(CMElementDeclaration ed)
{
CMNamedNodeMap nodeMap = ed.getAttributes();
int size = nodeMap.getLength();
for (int i = 0; i < size; i++)
{
visitCMNode(nodeMap.item(i));
}
visitCMNode(ed.getContent());
visitCMDataType(ed.getDataType());
}
}