/**

 * Free Telco Dictionary

 * Copyright © 2013 František Kučera (frantovo.cz)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

package cz.frantovo.telco.dictionary;

import static cz.frantovo.telco.dictionary.Functions.*;

import java.util.Iterator;

import java.util.Map;

import java.util.Map.Entry;

import javax.xml.namespace.NamespaceContext;

/**

 *

 * @author Ing. František Kučera (frantovo.cz)

 */

public class MappedNamespaceContext implements NamespaceContext {

	/**

	 * maps prexix to namespace URI

	 */

	private Map<String, String> prefixMap;

	public MappedNamespaceContext(Map<String, String> prefixMap) {

		this.prefixMap = prefixMap;

	}

	@Override

	public String getNamespaceURI(String prefix) {

		return prefixMap.get(prefix);

	}

	@Override

	public String getPrefix(String xmlns) {

		for (Entry<String, String> e : prefixMap.entrySet()) {

			if (equalz(xmlns, e.getValue())) {

				return e.getKey();

			}

		}

		return null;

	}

	@Override

	public Iterator getPrefixes(String xmlns) {

		return getKeysForValue(prefixMap, xmlns).iterator();

	}

}