UniversalNamespaceResolver.java

/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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.opencastproject.oaipmh.server;

import org.w3c.dom.Document;

import java.util.Iterator;

import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;

/**
 * Copied from the test harness module.
 */
public class UniversalNamespaceResolver implements NamespaceContext {
  private Document sourceDocument;

  /**
   *
   * Store the source document.
   *
   * @param document
   *          source document
   */
  public UniversalNamespaceResolver(Document document) {
    sourceDocument = document;
  }

  /**
   *
   * {@inheritDoc}
   *
   * @see javax.xml.namespace.NamespaceContext#getNamespaceURI(String)
   */
  public String getNamespaceURI(String prefix) {
    if (prefix.equals(XMLConstants.DEFAULT_NS_PREFIX)) {
      return sourceDocument.lookupNamespaceURI(null);
    } else {
      return sourceDocument.lookupNamespaceURI(prefix);
    }
  }

  /**
   *
   * {@inheritDoc}
   *
   * @see javax.xml.namespace.NamespaceContext#getPrefix(String)
   */
  public String getPrefix(String namespaceURI) {
    return sourceDocument.lookupPrefix(namespaceURI);
  }

  /**
   *
   * {@inheritDoc}
   *
   * @see javax.xml.namespace.NamespaceContext#getPrefixes(String)
   */
  @SuppressWarnings("unchecked")
  public Iterator getPrefixes(String namespaceURI) {
    return null;
  }

}