samples/org/apache/xml/security/samples/SampleUtils.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.samples;

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

public class SampleUtils {

    /**
     * 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;
    }
}