/*

 * Copyright 1997 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package sun.security.x509;

import java.io.IOException;

import sun.security.util.*;

/**

 * Represent the CertificatePolicyMap ASN.1 object.

 *

 * @author Amit Kapoor

 * @author Hemma Prafullchandra

 */

public class CertificatePolicyMap {

    private CertificatePolicyId issuerDomain;

    private CertificatePolicyId subjectDomain;

    /**

     * Create a CertificatePolicyMap with the passed CertificatePolicyId's.

     *

     * @param issuer the CertificatePolicyId for the issuer CA.

     * @param subject the CertificatePolicyId for the subject CA.

     */

    public CertificatePolicyMap(CertificatePolicyId issuer,

                                CertificatePolicyId subject) {

        this.issuerDomain = issuer;

        this.subjectDomain = subject;

    }

    /**

     * Create the CertificatePolicyMap from the DER encoded value.

     *

     * @param val the DER encoded value of the same.

     */

    public CertificatePolicyMap(DerValue val) throws IOException {

        if (val.tag != DerValue.tag_Sequence) {

            throw new IOException("Invalid encoding for CertificatePolicyMap");

        }

        issuerDomain = new CertificatePolicyId(val.data.getDerValue());

        subjectDomain = new CertificatePolicyId(val.data.getDerValue());

    }

    /**

     * Return the issuer CA part of the policy map.

     */

    public CertificatePolicyId getIssuerIdentifier() {

        return (issuerDomain);

    }

    /**

     * Return the subject CA part of the policy map.

     */

    public CertificatePolicyId getSubjectIdentifier() {

        return (subjectDomain);

    }

    /**

     * Returns a printable representation of the CertificatePolicyId.

     */

    public String toString() {

        String s = "CertificatePolicyMap: [\n"

                 + "IssuerDomain:" + issuerDomain.toString()

                 + "SubjectDomain:" + subjectDomain.toString()

                 + "]\n";

        return (s);

    }

    /**

     * Write the CertificatePolicyMap to the DerOutputStream.

     *

     * @param out the DerOutputStream to write the object to.

     * @exception IOException on errors.

     */

    public void encode(DerOutputStream out) throws IOException {

        DerOutputStream tmp = new DerOutputStream();

        issuerDomain.encode(tmp);

        subjectDomain.encode(tmp);

        out.write(DerValue.tag_Sequence,tmp);

    }

}