com.npower.dm.audit.hibernate.BaseAuditLogger.java Source code

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Here is the source code for com.npower.dm.audit.hibernate.BaseAuditLogger.java

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/**
  * $Header: /home/master/nWave-DM-Common/src/com/npower/dm/audit/hibernate/BaseAuditLogger.java,v 1.2 2007/02/06 10:42:21 zhao Exp $
  * $Revision: 1.2 $
  * $Date: 2007/02/06 10:42:21 $
  *
  * ===============================================================================================
  * License, Version 1.1
  *
  * Copyright (c) 1994-2007 NPower Network Software Ltd.  All rights reserved.
  *
  * This SOURCE CODE FILE, which has been provided by NPower as part
  * of a NPower product for use ONLY by licensed users of the product,
  * includes CONFIDENTIAL and PROPRIETARY information of NPower.
  *
  * USE OF THIS SOFTWARE IS GOVERNED BY THE TERMS AND CONDITIONS
  * OF THE LICENSE STATEMENT AND LIMITED WARRANTY FURNISHED WITH
  * THE PRODUCT.
  *
  * IN PARTICULAR, YOU WILL INDEMNIFY AND HOLD NPower, ITS RELATED
  * COMPANIES AND ITS SUPPLIERS, HARMLESS FROM AND AGAINST ANY CLAIMS
  * OR LIABILITIES ARISING OUT OF THE USE, REPRODUCTION, OR DISTRIBUTION
  * OF YOUR PROGRAMS, INCLUDING ANY CLAIMS OR LIABILITIES ARISING OUT OF
  * OR RESULTING FROM THE USE, MODIFICATION, OR DISTRIBUTION OF PROGRAMS
  * OR FILES CREATED FROM, BASED ON, AND/OR DERIVED FROM THIS SOURCE
  * CODE FILE.
  * ===============================================================================================
  */
package com.npower.dm.audit.hibernate;

import org.hibernate.Session;
import org.hibernate.Transaction;

import com.npower.dm.audit.AbstractAuditLogger;
import com.npower.dm.audit.AuditException;
import com.npower.dm.audit.AuditLoggerFactory;
import com.npower.dm.hibernate.entity.AuditLogEntity;
import com.npower.dm.hibernate.entity.AuditLogTargetEntity;
import com.npower.dm.hibernate.management.AuditLoggerFactoryImpl;

/**
 * Abstract Audit Logger.
 * @author Zhao DongLu
 * @version $Revision: 1.2 $ $Date: 2007/02/06 10:42:21 $
 */
public abstract class BaseAuditLogger extends AbstractAuditLogger {

    private AuditLoggerFactory factory = null;

    /**
     * Default constructor.
     */
    protected BaseAuditLogger() {
        super();
    }

    /* (non-Javadoc)
     * @see com.npower.dm.audit.AuditLogger#getFactory()
     */
    public AuditLoggerFactory getFactory() throws AuditException {
        return this.factory;
    }

    /* (non-Javadoc)
     * @see com.npower.dm.audit.AuditLogger#setFactory(com.npower.dm.audit.AuditLoggerFactory)
     */
    public void setFactory(AuditLoggerFactory factory) throws AuditException {
        this.factory = factory;
    }

    protected long save(AuditLogEntity log, AuditLogTargetEntity target) throws AuditException {
        AuditLoggerFactoryImpl factoryImpl = (AuditLoggerFactoryImpl) this.getFactory();

        Session hsession = null;
        Transaction tx = null;
        try {
            hsession = factoryImpl.getHibernateSession();
            tx = hsession.beginTransaction();

            hsession.saveOrUpdate(log);

            if (target != null) {
                target.setActionLog(log);
                hsession.saveOrUpdate(target);
            }
            tx.commit();

            return log.getID();
        } catch (Exception ex) {
            if (tx != null) {
                tx.rollback();
            }
            throw new AuditException("Failure in output log.", ex);
        } finally {
            if (hsession != null) {
                factoryImpl.releaseSession(hsession);
            }
        }
    }

    public AuditLogEntity getAuditLogRecord(long id) throws AuditException {
        AuditLoggerFactoryImpl factoryImpl = (AuditLoggerFactoryImpl) this.getFactory();

        Session hsession = null;
        try {
            hsession = factoryImpl.getHibernateSession();

            AuditLogEntity record = (AuditLogEntity) hsession.load(AuditLogEntity.class, new Long(id));

            return record;
        } catch (Exception ex) {
            throw new AuditException("Failure in loading log entity.", ex);
        } finally {
            if (hsession != null) {
                factoryImpl.releaseSession(hsession);
            }
        }
    }

}