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/*******************************************************************************
* Copyright (c) 2005 Oracle Corporation.
* 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:
* Ian Trimble - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.dtmanager.converter.operations.internal;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jst.pagedesigner.dtmanager.converter.operations.AbstractTransformOperation;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
/**
* ITransformOperation implementation that renames an attribute of the current
* Element.
*
* @author Ian Trimble - Oracle
*/
public class RenameAttributeOperation extends AbstractTransformOperation {
/*
* (non-Javadoc)
* @see org.eclipse.jst.pagedesigner.dtmanager.converter.operations.internal.provisional.AbstractTransformOperation#transform(org.w3c.dom.Element, org.w3c.dom.Element)
*/
public Element transform(Element srcElement, Element curElement) {
if (getParameters().length < 2) {
getLog().error("Warning.TransformOperationFactory.TooFewParameters", getTransformOperationID()); //$NON-NLS-1$
return null;
}
String oldAttributeName = getParameters()[0];
String newAttributeName = getParameters()[1];
Assert.isNotNull(oldAttributeName);
Assert.isNotNull(newAttributeName);
if (curElement != null) {
Attr oldAttribute = curElement.getAttributeNode(oldAttributeName);
if (oldAttribute != null) {
curElement.setAttribute(newAttributeName, oldAttribute.getValue());
curElement.removeAttribute(oldAttributeName);
}
}
return curElement;
}
}
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