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/*******************************************************************************
* Copyright (c) 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
*******************************************************************************/
package org.eclipse.wst.html.core.modelquery;
import java.util.Hashtable;
import org.eclipse.wst.common.contentmodel.CMDocument;
import org.eclipse.wst.common.contentmodel.modelquery.ModelQueryCMProvider;
import org.eclipse.wst.common.contentmodel.util.CMDocumentCache;
import org.eclipse.wst.html.core.contentmodel.HTMLCMDocumentFactory;
import org.eclipse.wst.html.core.document.HTMLDocumentTypeEntry;
import org.eclipse.wst.html.core.document.HTMLDocumentTypeRegistry;
import org.eclipse.wst.sse.core.contentmodel.CMDocType;
import org.eclipse.wst.xml.core.document.XMLDocument;
import org.eclipse.wst.xml.uriresolver.util.IdResolver;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Node;
/**
* CMDocument provider for HTML and XHTML documents.
*/
public class HTMLModelQueryCMProvider implements ModelQueryCMProvider {
private static CMDocument staticHTML = HTMLCMDocumentFactory.getCMDocument(CMDocType.HTML_DOC_TYPE);
private static CMDocument staticCHTML = HTMLCMDocumentFactory.getCMDocument(CMDocType.CHTML_DOC_TYPE);
private static HTMLDocumentTypeRegistry doctypeRegistry = HTMLDocumentTypeRegistry.getInstance();
private static Hashtable buddyCache = new Hashtable();
private XHTMLAssociationProvider xhtmlassoc = null;
public HTMLModelQueryCMProvider(CMDocumentCache cache, IdResolver idResolver) {
super();
xhtmlassoc = new XHTMLAssociationProvider(cache, idResolver);
}
/**
* Returns the CMDocument that corresponds to the DOM Node.
* or null if no CMDocument is appropriate for the DOM Node.
*/
public CMDocument getCorrespondingCMDocument(Node node) {
XMLDocument owner = getOwnerXMLDocument(node);
if (owner == null)
return null;
String pid = getPublicId(owner);
if (pid == null)
return staticHTML;
HTMLDocumentTypeEntry entry = doctypeRegistry.getEntry(pid);
if (entry == null)
return staticHTML;
pid = entry.getPublicId();
CMDocument dtdcm = xhtmlassoc.getXHTMLCMDocument(pid, entry.getSystemId());
if (dtdcm == null) {
if (pid != null && pid.equals(HTMLDocumentTypeRegistry.CHTML_PUBLIC_ID)) {
return staticCHTML;
}
return staticHTML;
}
CMDocument buddycm = (CMDocument) buddyCache.get(pid);
if (buddycm != null)
return buddycm;
buddycm = new CMDocumentForBuddySystem(dtdcm, entry.isXMLType());
buddyCache.put(pid, buddycm);
return buddycm;
}
// private methods
private XMLDocument getOwnerXMLDocument(Node node) {
if (node == null)
return null;
Document owner = (node.getNodeType() == Node.DOCUMENT_NODE) ? (Document) node : node.getOwnerDocument();
if (owner == null)
return null;
if (!(owner instanceof XMLDocument))
return null;
return (XMLDocument) owner;
}
private String getPublicId(XMLDocument doc) {
if (doc == null)
return null;
DocumentType doctype = doc.getDoctype();
return (doctype != null) ? doctype.getPublicId() : doc.getDocumentTypeId();
}
}
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