/**
 * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
 * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
 * joint initiative of the Federal Chancellery Austria and Graz University of
 * Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */
package at.knowcenter.wag.egov.egiz.ldap.client;

import iaik.asn1.structures.Name;
import iaik.utils.RFC2253NameParser;
import iaik.utils.RFC2253NameParserException;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;

import org.apache.log4j.Logger;

/**
 * @author <a href="mailto:thomas.knall@iaik.tugraz.at">Thomas Knall</a>
 */
public class LDAPMappingStore {
	
//	private Hashtable<Name, LDAPMapping> storedMappings;
	private Hashtable storedMappings;
	private LDAPIssuerNameFilter issuerNameFilter;
	private Logger log = Logger.getLogger(getClass());
	
	public LDAPMappingStore(LDAPIssuerNameFilter issuerNameFilter) {
		this.storedMappings = new Hashtable();
		this.issuerNameFilter = issuerNameFilter;
	}
	
	public LDAPMappingStore() {
		this(null);
	}
	
	public void clearStore() {
		this.storedMappings = new Hashtable();
	}
	
	public boolean isEmpty() {
		return this.storedMappings.isEmpty();
	}
	
	public boolean isLDAPIssuerNameFilter() {
		return this.issuerNameFilter != null;
	}
	
	public void addMapping(LDAPMapping mapping) {
		Name name = mapping.getIssuerName();
		if (issuerNameFilter != null) {
			name = this.issuerNameFilter.applyFilter(name);
		}
		List mappingList = (List) this.storedMappings.get(name);
      if (mappingList == null) {
         mappingList = new ArrayList();
         this.storedMappings.put(name, mappingList);
      }
      log.debug("Adding mapping \"" + mapping + "\" for \"" + name.getName() + "\".");
      mappingList.add(mapping);
	}

	public List getMappings(Name name) {
		if (issuerNameFilter != null) {
			name = this.issuerNameFilter.applyFilter(name);
		}
		return (List) this.storedMappings.get(name);
	}
	
	public List getMappings(String nameString) throws LDAPException {
		RFC2253NameParser parser = new RFC2253NameParser(nameString);
		Name name;
		try {
			name = parser.parse();
		} catch (RFC2253NameParserException e) {
			throw new LDAPException(e);
		}
		if (issuerNameFilter != null) {
			name = this.issuerNameFilter.applyFilter(name);
		}
		return this.getMappings(name);
	}
	
}