/**
* 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.api;
import java.util.Hashtable;
import org.apache.log4j.Logger;
import at.knowcenter.wag.egov.egiz.ldap.client.LDAPIssuerNameFilter;
import at.knowcenter.wag.egov.egiz.sig.LDAPAPI;
/**
* @author Thomas Knall
*/
public class LDAPAPIFactoryImpl extends LDAPAPIFactory {
private static final Logger log = Logger.getLogger(LDAPAPIFactoryImpl.class);
// mapping
// private Hashtable ldapImpls;
private Hashtable ldapImpls;
private LDAPIssuerNameFilter ldapIssuerNameFilter;
protected LDAPAPIFactoryImpl(LDAPIssuerNameFilter ldapIssuerNameFilter) {
this.ldapImpls = new Hashtable();
this.ldapIssuerNameFilter = ldapIssuerNameFilter;
}
private LDAPAPI instantiatelAPIImpl(String implClassURI) throws LDAPAPIException {
if (implClassURI == null) {
throw new NullPointerException("URI of implementing class must not be null.");
}
if (implClassURI.length() == 0) {
throw new IllegalArgumentException("URI of implementing class must not be empty.");
}
log.info("Trying to instantiate \"" + LDAPAPI.class.getName() + "\" implementation \"" + implClassURI + "\"...");
LDAPAPI ldapAPIImpl = null;
try {
Class clazz = Class.forName(implClassURI);
Object ldapAPIImplObj = clazz.newInstance();
if (!(ldapAPIImplObj instanceof LDAPAPI)) {
throw new LDAPAPIException("Declared class does not implement \"" + LDAPAPI.class.getName() + "\".");
}
ldapAPIImpl = (LDAPAPI) ldapAPIImplObj;
log.info("LDAPAPI implementation successfully instantiated.");
ldapAPIImpl.setIssuerNameFilter(this.ldapIssuerNameFilter);
} catch (InstantiationException e) {
throw new LDAPAPIException("Declared implementation of \"" + LDAPAPI.class.getName() + "\" cannot be instantiated.");
} catch (IllegalAccessException e) {
throw new LDAPAPIException("Declared implementation of \"" + LDAPAPI.class.getName() + "\" cannot be instantiated (illegal access).");
} catch (ClassNotFoundException e) {
throw new LDAPAPIException("Unable to find class \"" + implClassURI + "\" as implementation of \"" + LDAPAPI.class.getName() + "\".");
}
return ldapAPIImpl;
}
public synchronized LDAPAPI createLDAPAPI(String implClassURI) throws LDAPAPIException {
if (implClassURI == null || implClassURI.length() == 0) {
// use internal implementation
implClassURI = LDAPAPIImpl.class.getName();
}
LDAPAPI impl = (LDAPAPI) this.ldapImpls.get(implClassURI);
if (impl == null) {
impl = this.instantiatelAPIImpl(implClassURI);
this.ldapImpls.put(implClassURI, impl);
}
return impl;
}
}