/*******************************************************************************
* Copyright (c) 2008, 2011 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.cdt.internal.ui.wizards.settingswizards;
import java.util.ArrayList;
import java.util.List;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
public class XMLUtils {
private XMLUtils() {}
public static List<Element> extractChildElements(Element node, String childElementName) throws SettingsImportExportException {
List<Element> extracted = new ArrayList<Element>();
NodeList children = node.getChildNodes();
for(int i = 0; i < children.getLength(); i++) {
Node child = children.item(i);
switch(child.getNodeType()) {
case Node.ELEMENT_NODE:
Element element = (Element)child;
if(element.getTagName().equals(childElementName)) {
extracted.add(element);
}
else
throw new SettingsImportExportException("Unknown tag: " + element.getTagName()); //$NON-NLS-1$
break;
case Node.TEXT_NODE:
Text text = (Text)child;
if(isWhitespace(text.getData()))
break;
throw new SettingsImportExportException("Unknown text: '" + text.getData() + "'"); //$NON-NLS-1$ //$NON-NLS-2$
default:
throw new SettingsImportExportException("Unknown node: " + child.getNodeName()); //$NON-NLS-1$
}
}
return extracted;
}
public static boolean isWhitespace(String s) {
if(s == null)
return false;
for(char c : s.toCharArray()) {
if(!Character.isWhitespace(c)) {
return false;
}
}
return true;
}
}