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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.jsp.core.util;
import org.eclipse.jst.jsp.core.internal.contentmodel.tld.provisional.TLDDocument;
import org.eclipse.jst.jsp.core.internal.contentmodel.tld.provisional.TLDElementDeclaration;
import org.eclipse.wst.html.core.internal.provisional.HTMLCMProperties;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
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.CMNode;
import org.eclipse.wst.xml.core.internal.provisional.contentmodel.CMNodeWrapper;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.eclipse.wst.xml.core.internal.ssemodelquery.ModelQueryAdapter;
/**
* Utility class to content model related information.
*
* @author mengbo
*/
public class CMUtil {
/**
* If the element is a custom tag, get the URI of it. If the element is a
* standard JSP tag, return null. If is not jsp tag, then return null
* @param decl
* @return the tag uri for decl
*/
public static String getTagURI(CMElementDeclaration decl) {
if (decl instanceof CMNodeWrapper) {
decl = (CMElementDeclaration) ((CMNodeWrapper) decl)
.getOriginNode();
}
if (decl instanceof TLDElementDeclaration) {
CMDocument doc = ((TLDElementDeclaration) decl).getOwnerDocument();
if (doc instanceof TLDDocument) {
return ((TLDDocument) doc).getUri();
}
}
return null;
}
/**
* get element declaration of specified element
*
* @param element
* @return null if can't get it.
*/
public static CMElementDeclaration getElementDeclaration(IDOMElement element) {
INodeNotifier notifier = (INodeNotifier) element.getOwnerDocument();
if (notifier == null) {
return null;
}
ModelQueryAdapter mqa = (ModelQueryAdapter) notifier
.getAdapterFor(ModelQueryAdapter.class);
if (mqa == null) {
return null;
}
return mqa.getModelQuery().getCMElementDeclaration(element);
}
/**
* @param element
* @return the tld element declaration for element
*/
public static TLDElementDeclaration getTLDElementDeclaration(
IDOMElement element) {
CMNode decl = getElementDeclaration(element);
if (decl instanceof CMNodeWrapper) {
decl = ((CMNodeWrapper) decl).getOriginNode();
}
if (decl instanceof TLDElementDeclaration) {
return (TLDElementDeclaration) decl;
}
return null;
}
/**
* @param decl
* @return true if decl is a JSP tag
*/
public static boolean isJSP(CMElementDeclaration decl) {
if (!decl.supports(HTMLCMProperties.IS_JSP)) {
return false;
}
return ((Boolean) decl.getProperty(HTMLCMProperties.IS_JSP))
.booleanValue();
}
}
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