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

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

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

import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Disjunction;
import org.hibernate.criterion.Restrictions;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import com.ephesoft.dcma.core.dao.hibernate.HibernateDao;
import com.ephesoft.dcma.da.dao.BatchInstanceGroupsDao;
import com.ephesoft.dcma.da.domain.BatchInstanceGroups;

/**
 * This class is responsible to fetch data of batch instance group table from data base.
 * 
 * @author Ephesoft
 * @version 1.0
 * @see com.ephesoft.dcma.da.dao.BatchInstanceGroupsDao
 */
@Repository
public class BatchInstanceGroupsDaoImpl extends HibernateDao<BatchInstanceGroups>
        implements BatchInstanceGroupsDao {

    /**
     * Constant for group name.
     */
    private static final String GROUP_NAME = "groupName";

    /**
     * Constant for batch class id.
     */
    private static final String BATCH_INSTANCE_ID = "batchInstanceIdentifier";

    /**
     * API for getting the batch instance identifiers having the user roles.
     * @param userRoles Set<String>
     * @return Set<String>
     */
    @Override
    public Set<String> getBatchInstanceIdentifierForUserRoles(final Set<String> userRoles) {
        boolean isValid = true;
        if (userRoles == null || userRoles.size() == 0) {
            isValid = false;
        }
        Set<String> batchInstanceIdentifiers = null;

        if (isValid) {
            batchInstanceIdentifiers = new HashSet<String>();
            final DetachedCriteria criteria = criteria();
            final Disjunction disjunction = Restrictions.disjunction();
            disjunction.add(Restrictions.in(GROUP_NAME, userRoles));
            criteria.add(disjunction);
            final List<BatchInstanceGroups> batchInstanceGroups = find(criteria);
            for (final BatchInstanceGroups batchInstanceGroup : batchInstanceGroups) {
                batchInstanceIdentifiers.add(batchInstanceGroup.getBatchInstanceIdentifier());
            }
        }
        return batchInstanceIdentifiers;
    }

    /**
     * API for getting roles for the specified batch instance.
     * @param batchInstanceId String
     * @return Set<String>
     */
    @Override
    public Set<String> getRolesForBatchInstance(String batchInstanceId) {
        Set<String> grps = new HashSet<String>();
        final DetachedCriteria criteria = criteria();
        final Disjunction disjunction = Restrictions.disjunction();
        disjunction.add(Restrictions.eq(BATCH_INSTANCE_ID, batchInstanceId));
        criteria.add(disjunction);
        final List<BatchInstanceGroups> batchClassGroups = find(criteria);
        for (final BatchInstanceGroups batchInstanceGroup : batchClassGroups) {
            grps.add(batchInstanceGroup.getGroupName());
        }
        return grps;
    }

    /**
     * API for adding user role to batch instance.
     * @param batchInstanceIdentifier {@link String}
     * @param userRole {@link String}
     */
    @Transactional
    @Override
    public void addUserRolesToBatchInstanceIdentifier(String batchInstanceIdentifier, String userRole) {
        BatchInstanceGroups batchInstanceGroups = new BatchInstanceGroups();
        batchInstanceGroups.setBatchInstanceIdentifier(batchInstanceIdentifier);
        batchInstanceGroups.setGroupName(userRole);
        create(batchInstanceGroups);
    }

    /**
     * API for getting the batch instance identifiers except provided user roles.
     * 
     * @param userRoles Set<String>
     * @return Set<String>
     */
    @Override
    public Set<String> getBatchInstanceIdentifiersExceptUserRoles(final Set<String> userRoles) {
        Set<String> batchInstanceIdentifiers = new HashSet<String>();
        final DetachedCriteria criteria = criteria();
        final Disjunction disjunction = Restrictions.disjunction();
        disjunction.add(Restrictions.not(Restrictions.in(GROUP_NAME, userRoles)));
        criteria.add(disjunction);
        final List<BatchInstanceGroups> batchInstanceGroups = find(criteria);
        for (final BatchInstanceGroups batchInstanceGroup : batchInstanceGroups) {
            batchInstanceIdentifiers.add(batchInstanceGroup.getBatchInstanceIdentifier());
        }
        return batchInstanceIdentifiers;
    }
}