com.ephesoft.dcma.da.dao.hibernate.LockStatusDaoImpl.java Source code

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Here is the source code for com.ephesoft.dcma.da.dao.hibernate.LockStatusDaoImpl.java

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package com.ephesoft.dcma.da.dao.hibernate;

import java.util.List;

import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Restrictions;
import org.springframework.stereotype.Repository;

import com.ephesoft.dcma.core.common.FeatureName;
import com.ephesoft.dcma.core.dao.hibernate.HibernateDao;
import com.ephesoft.dcma.da.dao.LockStatusDao;
import com.ephesoft.dcma.da.domain.LockStatus;

/**
 * The <code>LockStatusDaoImpl</code> is the implementation of {@link LockStatusDao}.
 * 
 * @author Ephesoft
 * 
 *         <b>created on</b> 10-Jul-2013 <br/>
 * @version $LastChangedDate:$ <br/>
 *          $LastChangedRevision:$ <br/>
 */
@Repository
public class LockStatusDaoImpl extends HibernateDao<LockStatus> implements LockStatusDao {

    /**
     * FEATURE_NAME {@link String} represents the constant for the feature name.
     */
    private static final String FEATURE_NAME = "featureName";

    /**
     * USER_NAME {@link String} represents the constant for the user name.
     */
    private static final String USER_NAME = "userName";

    /**
     * IS_LOCKED {@link String} represents the constant whether the application feature is currently locked or not.
     */
    private static final String IS_LOCKED = "isLocked";

    @Override
    public void acquireLock(final LockStatus lockStatus) {
        saveOrUpdate(lockStatus);
    }

    @Override
    public LockStatus getLockStatus(final FeatureName featureName) {
        final DetachedCriteria criteria = criteria();
        criteria.add(Restrictions.eq(FEATURE_NAME, featureName));
        return findSingle(criteria);
    }

    @Override
    public void releaseLock(final FeatureName featureName) {
        final LockStatus lockStatus = getLockStatus(featureName);
        if (lockStatus != null) {
            lockStatus.setLocked(false);
            lockStatus.setFeatureName(featureName);
            lockStatus.setUserName(null);
            saveOrUpdate(lockStatus);
        }
    }

    @Override
    public void releaseAllLocks(final String userName) {
        final List<LockStatus> listLockStatus = getAllFeaturesLockedByUser(userName);
        if (listLockStatus != null) {
            for (LockStatus lockStatus : listLockStatus) {
                if (lockStatus != null) {
                    lockStatus.setLocked(false);
                    lockStatus.setUserName(null);
                    saveOrUpdate(lockStatus);
                }
            }
        }

    }

    @Override
    public List<LockStatus> getAllFeaturesLockedByUser(final String userName) {
        final DetachedCriteria criteria = criteria();
        criteria.add(Restrictions.eq(USER_NAME, userName));
        criteria.add(Restrictions.eq(IS_LOCKED, true));
        return find(criteria);
    }
}