/**
* Copyright 2006 by Know-Center, Graz, Austria
* 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.ObjectID;
import iaik.asn1.structures.Name;
import iaik.utils.RFC2253NameParser;
import iaik.utils.RFC2253NameParserException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.lang.ArrayUtils;
import org.apache.log4j.Logger;
/**
* @author Thomas Knall
*/
public final class LDAPClientFactoryImpl extends LDAPClientFactory {
private final Logger log = Logger.getLogger(getClass());
private Hashtable ldapClients;
protected LDAPClientFactoryImpl() {
this.ldapClients = new Hashtable();
}
public static String rfc2253Name2Domain(Name name) {
Object[] values = name.getRDNValues(ObjectID.domainComponent);
if (values == null) {
return null;
}
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < values.length; i++) {
buffer.append(values[i]);
if (i+1 < values.length) {
buffer.append(".");
}
}
return buffer.toString();
}
public static String rfc2253Name2Domain(String nameString) throws RFC2253NameParserException {
RFC2253NameParser nameParser = new RFC2253NameParser(nameString);
return rfc2253Name2Domain(nameParser.parse());
}
private List instantiateLDAPClients(String issuerName) throws LDAPException {
if (!super.hasBeenConfigured()) {
log.warn(super.getClass().getName() + " has not been configured yet.");
}
List ldapClients = new ArrayList();
List mappings = super.getMappings(issuerName);
if (mappings == null || mappings.isEmpty()) {
try {
String alternativeURLString = rfc2253Name2Domain(issuerName);
if (alternativeURLString == null || alternativeURLString.length() == 0) {
throw new LDAPException("Neither issuer name \"" + issuerName + "\" has been registered nor domain components were provided.");
}
alternativeURLString = "ldap://" + alternativeURLString;
log.warn("Issuer name \"" + issuerName + "\" has not been registered; trying to instantiate client for url \"" + alternativeURLString + "\"...");
LDAPClient client = new LDAPClientImpl(alternativeURLString);
ldapClients.add(client);
} catch (RFC2253NameParserException e) {
throw new LDAPException(e);
}
} else {
log.debug("Instantiating LDAP clients for " + ArrayUtils.toString(mappings.toArray()) + ".");
Iterator mappingIt = mappings.iterator();
while (mappingIt.hasNext()) {
LDAPMapping mapping = (LDAPMapping) mappingIt.next();
ldapClients.add(new LDAPClientImpl(mapping));
}
}
return ldapClients;
}
public synchronized List createClients(String issuerName) throws LDAPException {
if (issuerName == null) {
throw new NullPointerException("Issuer name must not be null.");
}
if (issuerName.length() == 0) {
throw new IllegalArgumentException("Issuer name must not be empty.");
}
List ldapClientList = (List) ldapClients.get(issuerName);
if (ldapClientList == null) {
ldapClientList = instantiateLDAPClients(issuerName);
ldapClients.put(issuerName, ldapClientList);
}
return Collections.unmodifiableList(ldapClientList);
}
}