/*
 * Copyright 2009 The Apache Software Foundation.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.xml.security.test;

import org.apache.xml.security.utils.Constants;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class TestUtils {

	/**
	    * Method createDSctx
	    *
	    * @param doc
	    * @param prefix
	    * @param namespace
	    * @return the element.
	    */
	   public static Element createDSctx(Document doc, String prefix,
	                                     String namespace) {
	
	      if ((prefix == null) || (prefix.trim().length() == 0)) {
	         throw new IllegalArgumentException("You must supply a prefix");
	      }
	
	      Element ctx = doc.createElementNS(null, "namespaceContext");
	
	      ctx.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:" + prefix.trim(),
	                         namespace);
	
	      return ctx;
	   }

}