// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program 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 for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cmscore.dbs;

import java.math.BigInteger;
import java.util.Enumeration;
import java.util.Vector;

import netscape.ldap.LDAPAttribute;
import netscape.ldap.LDAPAttributeSet;

import com.netscape.certsrv.apps.CMS;
import com.netscape.certsrv.base.EBaseException;
import com.netscape.certsrv.dbs.EDBException;
import com.netscape.certsrv.dbs.IDBAttrMapper;
import com.netscape.certsrv.dbs.IDBObj;
import com.netscape.certsrv.dbs.keydb.IKeyRecord;
import com.netscape.certsrv.dbs.keydb.IKeyRepository;
import com.netscape.certsrv.logging.ILogger;

/**
 * A class represents a mapper to serialize
 * key record into database.
 * <P>
 *
 * @author thomask
 * @version $Revision$, $Date$
 */
public class KeyRecordMapper implements IDBAttrMapper {

    private IKeyRepository mDB = null;
    private ILogger mLogger = CMS.getLogger();

    public KeyRecordMapper(IKeyRepository db) {
        mDB = db;
    }

    public Enumeration<String> getSupportedLDAPAttributeNames() {
        Vector<String> v = new Vector<String>();

        v.addElement(KeyDBSchema.LDAP_ATTR_KEY_RECORD_ID);
        return v.elements();
    }

    public void mapObjectToLDAPAttributeSet(IDBObj parent, String name,
            Object obj, LDAPAttributeSet attrs) throws EBaseException {
        if (obj == null) {
            throw new EBaseException(CMS.getUserMessage("CMS_DBS_SERIALIZE_FAILED", name));
        }
        try {
            KeyRecord rec = (KeyRecord) obj;

            attrs.add(new LDAPAttribute(KeyDBSchema.LDAP_ATTR_KEY_RECORD_ID,
                    rec.getSerialNumber().toString()));
        } catch (Exception e) {
            /*LogDoc
             *
             * @phase  Maps object to ldap attribute set
             * @message KeyRecordMapper: <exception thrown>
             */
            mLogger.log(ILogger.EV_SYSTEM, ILogger.S_DB, ILogger.LL_FAILURE,
                    CMS.getLogMessage("CMSCORE_DBS_KEYRECORD_MAPPER_ERROR", e.toString()));
            throw new EDBException(
                    CMS.getUserMessage("CMS_DBS_SERIALIZE_FAILED", name));
        }
    }

    public void mapLDAPAttributeSetToObject(LDAPAttributeSet attrs,
            String name, IDBObj parent) throws EBaseException {
        try {
            LDAPAttribute attr = attrs.getAttribute(
                    KeyDBSchema.LDAP_ATTR_KEY_RECORD_ID);

            if (attr == null)
                return;
            String serialno = (String) attr.getStringValues().nextElement();
            IKeyRecord rec = mDB.readKeyRecord(new
                    BigInteger(serialno));

            parent.set(name, rec);
        } catch (Exception e) {

            /*LogDoc
             *
             * @phase  Maps ldap attribute set to object
             * @message KeyRecordMapper: <exception thrown>
             */
            mLogger.log(ILogger.EV_SYSTEM, ILogger.S_DB, ILogger.LL_FAILURE,
                    CMS.getLogMessage("CMSCORE_DBS_KEYRECORD_MAPPER_ERROR", e.toString()));
            throw new EDBException(
                    CMS.getUserMessage("CMS_DBS_DESERIALIZE_FAILED", name));
        }
    }

    public String mapSearchFilter(String name, String op, String value)
            throws EBaseException {
        return name + op + value;
    }
}