/*************************************************************************
 *                                                                       *
 *  CERT-CVC: EAC 1.11 Card Verifiable Certificate Library               * 
 *                                                                       *
 *  This software is free software; you can redistribute it and/or       *
 *  modify it under the terms of the GNU Lesser General Public           *
 *  License as published by the Free Software Foundation; either         *
 *  version 2.1 of the License, or any later version.                    *
 *                                                                       *
 *  See terms of license at gnu.org.                                     *
 *                                                                       *
 *************************************************************************/
package org.ejbca.cvc;

/**
 * Factory for creating sequences, that is certificate objects containing
 * subfields
 * 
 * @author Keijo Kurkinen, Swedish National Police Board
 * @version $Id: SequenceFactory.java 20720 2015-02-19 16:56:59Z mikekushner $
 * 
 */
public class SequenceFactory {

    /**
     * Constructs a new instance of a subclass to AbstractSequence
     * 
     * @param tag
     * @return
     * @throws IllegalArgumentException
     *             if the supplied tag does not represent a sequence
     */
    public static AbstractSequence createSequence(CVCTagEnum tag) {
	if (!tag.isSequence()) {
	    throw new IllegalArgumentException("Tag " + tag + " is not a sequence");
	}

	switch (tag) {
	case CV_CERTIFICATE:
	    return new CVCertificate();
	case CERTIFICATE_BODY:
	    return new CVCertificateBody();
	case PUBLIC_KEY:
	    return new GenericPublicKeyField();
	case HOLDER_AUTH_TEMPLATE:
	    return new CVCAuthorizationTemplate();
	case REQ_AUTHENTICATION:
	    return new CVCAuthenticatedRequest();
	default:
	}
	throw new IllegalArgumentException("Unsupported type " + tag);
    }

}