package at.knowcenter.wag.egov.egiz.ldap.api;

import iaik.asn1.ObjectID;
import iaik.security.ecc.provider.ECCProvider;
import iaik.security.provider.IAIK;
import iaik.utils.RFC2253NameParser;

import org.apache.log4j.Logger;

import at.knowcenter.wag.egov.egiz.ldap.client.LDAPIssuerNameFilter;
import at.knowcenter.wag.egov.egiz.sig.LDAPAPI;

/**
 * @author <a href="mailto:thomas.knall@iaik.tugraz.at">Thomas Knall</a>
 */
public abstract class LDAPAPIFactory {

	private static LDAPAPIFactory ldapAPIfactoryInstance;
	private final Logger log = Logger.getLogger(LDAPAPIFactory.class);

	protected LDAPAPIFactory() {
		IAIK.addAsProvider();
		ECCProvider.addAsProvider();
		
		// Does not conform with PKIX, but is used by belgium citizen card
//		log.info("Registering RDN \"SERIALNUMBER\" as " + ObjectID.serialNumber + ".");
		RFC2253NameParser.register("SERIALNUMBER", ObjectID.serialNumber);
	}
	
	public static synchronized LDAPAPIFactory getInstance(LDAPIssuerNameFilter ldapIssuerNameFilter) {
		if (ldapAPIfactoryInstance == null) {
			ldapAPIfactoryInstance = new LDAPAPIFactoryImpl(ldapIssuerNameFilter);
		}
		return ldapAPIfactoryInstance;
	}
	
	public static LDAPAPIFactory getInstance() {
		return getInstance(null);
	}
	
	public abstract LDAPAPI createLDAPAPI(String implClassURI) throws LDAPAPIException;

}