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

import iaik.security.ecc.provider.ECCProvider;
import iaik.security.provider.IAIK;
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;

	protected LDAPAPIFactory() {
		IAIK.addAsProvider();
		ECCProvider.addAsProvider();
	}
	
	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;

}