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/*******************************************************************************
* Copyright (c) 2002 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.ArrayList;
import java.util.Collection;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
public class NamespaceTable extends NamespaceAttributeVisitor
{
public Hashtable hashtable = new Hashtable();
public NamespaceTable(Document document)
{
//DOMExtension domExtension = DOMExtensionProviderRegistry.getInstance().getDOMExtension(document);
//if (domExtension != null)
//{
// addNamespaceInfoList(domExtension.getImplictNamespaceInfoList(), true);
// }
}
private NamespaceTable()
{
}
public boolean isNamespaceEncountered()
{
return hashtable.values().size() > 0;
}
public String getPrefixForURI(String uri)
{
String result = null;
NamespaceInfo entry = getNamespaceInfoForURI(uri, true);
if (entry != null)
{
result = entry.prefix;
}
return result;
}
public String getURIForPrefix(String prefix)
{
String result = null;
NamespaceInfo info = getNamespaceInfoForPrefix(prefix);
if (info != null)
{
result = info.uri;
}
return result;
}
protected boolean isMatchingString(String a, String b)
{
return ((a == null && b == null) || (a != null && b != null && a.equals(b)));
}
public NamespaceInfo getNamespaceInfoForURI(String uri)
{
return getNamespaceInfoForURI(uri, false);
}
public NamespaceInfo getNamespaceInfoForURI(String uri, boolean testImplied)
{
NamespaceInfo result = null;
for (Iterator i = hashtable.values().iterator(); i.hasNext(); )
{
NamespaceInfo nsInfo = (NamespaceInfo)i.next();
if (isMatchingString(nsInfo.uri, uri))
{
result = nsInfo;
if (testImplied && nsInfo.getProperty("isImplied") != null) //$NON-NLS-1$
{
// continue
}
else
{
break;
}
}
}
return result;
}
public void setLocationHintForURI(String uri, String locationHint)
{
// List list = new Vector();
for (Iterator i = hashtable.values().iterator(); i.hasNext(); )
{
NamespaceInfo nsInfo = (NamespaceInfo)i.next();
if (isMatchingString(nsInfo.uri, uri))
{
nsInfo.locationHint = locationHint;
}
}
}
public NamespaceInfo getNamespaceInfoForPrefix(String prefix)
{
prefix = prefix != null ? prefix : ""; //$NON-NLS-1$
return (NamespaceInfo)hashtable.get(prefix);
}
public void visitXMLNamespaceAttribute(Attr attr, String namespacePrefix, String namespaceURI)
{
NamespaceInfo nsInfo = new NamespaceInfo();
nsInfo.prefix = namespacePrefix;
nsInfo.uri = namespaceURI;
NamespaceInfo matchingNamespaceInfo = getNamespaceInfoForURI(namespaceURI);
if (matchingNamespaceInfo != null)
{
nsInfo.locationHint = matchingNamespaceInfo.locationHint;
}
internalAddNamespaceInfo(namespacePrefix, nsInfo);
super.visitXMLNamespaceAttribute(attr, namespacePrefix, namespaceURI);
}
public void visitXSISchemaLocationValuePair(String uri, String locationHint)
{
setLocationHintForURI(uri, locationHint);
}
public void addNamespaceInfo(NamespaceInfo info)
{
String key = (info.prefix != null) ? info.prefix : ""; //$NON-NLS-1$
internalAddNamespaceInfo(key, info);
}
protected void internalAddNamespaceInfo(String key, NamespaceInfo info)
{
hashtable.put(key, info);
}
protected void addNamespaceInfoList(List list, boolean isImplied)
{
if (list != null)
{
for (Iterator i = list.iterator(); i.hasNext(); )
{
NamespaceInfo info = (NamespaceInfo)i.next();
NamespaceInfo clone = new NamespaceInfo(info);
if (isImplied)
{
clone.setProperty("isImplied", "true"); //$NON-NLS-1$ //$NON-NLS-2$
}
addNamespaceInfo(clone);
}
}
}
public void addNamespaceInfoList(List list)
{
addNamespaceInfoList(list, false);
}
public void visitXSINoNamespaceSchemaLocationAttribute(Attr attr, String locationHint)
{
addNoNamespaceSchemaLocation(locationHint);
}
public void addNoNamespaceSchemaLocation(String locationHint)
{
NamespaceInfo nsInfo = new NamespaceInfo();
nsInfo.prefix = null;
nsInfo.uri = ""; //$NON-NLS-1$
nsInfo.locationHint = locationHint;
internalAddNamespaceInfo("", nsInfo); //$NON-NLS-1$
}
public void addNamespaceInfo(String prefix, String uri, String locationHint)
{
NamespaceInfo nsInfo = new NamespaceInfo();
nsInfo.prefix = prefix;
nsInfo.uri = uri;
nsInfo.locationHint = locationHint;
internalAddNamespaceInfo(prefix != null ? prefix : "", nsInfo); //$NON-NLS-1$
}
public void addElement(Element element)
{
visitElement(element);
}
public void addElementLineage(Element targetElement)
{
List list = NamespaceTable.getElementLineage(targetElement);
for (Iterator i = list.iterator(); i.hasNext(); )
{
Element element = (Element)i.next();
addElement(element);
}
}
public static List getElementLineage(Element element)
{
List result = new ArrayList();
for (Node node = element; node != null; node = node.getParentNode())
{
if (node.getNodeType() == Node.ELEMENT_NODE)
{
result.add(0, node);
}
else
{
break;
}
}
return result;
}
public Collection getNamespaceInfoCollection()
{
return hashtable.values();
}
public List getNamespaceInfoList()
{
List list = new Vector();
list.addAll(hashtable.values());
return list;
}
}
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