com.abiquo.server.core.enterprise.RoleDAO.java Source code

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Here is the source code for com.abiquo.server.core.enterprise.RoleDAO.java

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/**
 * Abiquo community edition
 * cloud management application for hybrid clouds
 * Copyright (C) 2008-2010 - Abiquo Holdings S.L.
 *
 * This application is free software; you can redistribute it and/or
 * modify it under the terms of the GNU LESSER GENERAL PUBLIC
 * LICENSE as published by the Free Software Foundation under
 * version 3 of the License
 *
 * This software 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
 * LESSER GENERAL PUBLIC LICENSE v.3 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

package com.abiquo.server.core.enterprise;

import java.util.Collection;
import java.util.List;

import javax.persistence.EntityManager;

import org.apache.commons.lang.StringUtils;
import org.hibernate.Criteria;
import org.hibernate.Query;
import org.hibernate.criterion.Conjunction;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.Disjunction;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import org.springframework.stereotype.Repository;

import com.abiquo.server.core.common.persistence.DefaultDAOBase;
import com.abiquo.server.core.util.PagedList;

@Repository("jpaRoleDAO")
public class RoleDAO extends DefaultDAOBase<Integer, Role> {
    public RoleDAO() {
        super(Role.class);
    }

    public RoleDAO(final EntityManager entityManager) {
        super(Role.class, entityManager);
    }

    public static Criterion sameEnterpriseOrNull(final Enterprise enterprise) {
        Disjunction filterDisjunction = Restrictions.disjunction();

        filterDisjunction.add(Restrictions.eq(Role.ENTERPRISE_PROPERTY, enterprise));
        filterDisjunction.add(Restrictions.isNull(Role.ENTERPRISE_PROPERTY));

        return filterDisjunction;
    }

    public static Criterion sameEnterprise(final Enterprise enterprise) {
        Disjunction filterDisjunction = Restrictions.disjunction();

        filterDisjunction.add(Restrictions.eq(Role.ENTERPRISE_PROPERTY, enterprise));

        return filterDisjunction;
    }

    public static Criterion genericRole() {
        return Restrictions.isNull(Role.ENTERPRISE_PROPERTY);

    }

    private Criterion filterBy(final String filter) {
        Disjunction filterDisjunction = Restrictions.disjunction();

        filterDisjunction.add(Restrictions.like(Role.NAME_PROPERTY, '%' + filter + '%'));

        return filterDisjunction;
    }

    private Criterion filterExactlyBy(final String filter) {
        Conjunction filterConjunction = Restrictions.conjunction();

        filterConjunction.add(Restrictions.like(Role.NAME_PROPERTY, filter));

        return filterConjunction;
    }

    public Collection<Role> find(final Enterprise enterprise, final String filter, final String orderBy,
            final boolean desc) {
        return find(enterprise, filter, orderBy, desc, 0, 25);
    }

    public Collection<Role> find(final Enterprise enterprise, final String filter, final String orderBy,
            final boolean desc, final Integer offset, final Integer numResults) {
        return find(enterprise, filter, orderBy, desc, offset, numResults, false);
    }

    public Collection<Role> find(final Enterprise enterprise, final String filter, final String orderBy,
            final boolean desc, final Integer offset, final Integer numResults,
            final boolean discardNullEnterprises) {
        Criteria criteria = createCriteria(enterprise, filter, orderBy, desc, discardNullEnterprises);

        Long total = count(criteria);

        criteria = createCriteria(enterprise, filter, orderBy, desc, discardNullEnterprises);

        criteria.setFirstResult(offset);
        criteria.setMaxResults(numResults);

        List<Role> result = getResultList(criteria);

        PagedList<Role> page = new PagedList<Role>();
        page.addAll(result);
        page.setCurrentElement(offset);
        page.setPageSize(numResults);
        page.setTotalResults(total.intValue());

        return page;
    }

    public Collection<Role> findExactly(final Enterprise enterprise, final String filter, final String orderBy,
            final boolean desc, final Integer offset, final Integer numResults,
            final boolean discardNullEnterprises) {
        Criteria criteria = createCriteriaExactly(enterprise, filter, orderBy, desc, discardNullEnterprises);

        Long total = count(criteria);

        criteria = createCriteriaExactly(enterprise, filter, orderBy, desc, discardNullEnterprises);

        criteria.setFirstResult(offset * numResults);
        criteria.setMaxResults(numResults);

        List<Role> result = getResultList(criteria);

        PagedList<Role> page = new PagedList<Role>();
        page.addAll(result);
        page.setCurrentElement(offset);
        page.setPageSize(numResults);
        page.setTotalResults(total.intValue());

        return page;
    }

    private Criteria createCriteria(final Enterprise enterprise, final String filter, final String orderBy,
            final boolean desc, final boolean discardNullEnterprises) {
        Criteria criteria = createCriteria();

        if (enterprise != null) {
            if (discardNullEnterprises) {
                criteria.add(sameEnterprise(enterprise));
            } else {
                criteria.add(sameEnterpriseOrNull(enterprise));
            }
        } else {
            criteria.add(genericRole());
        }

        if (!StringUtils.isEmpty(filter)) {
            criteria.add(filterBy(filter));
        }

        if (!StringUtils.isEmpty(orderBy)) {
            Order order = Order.asc(orderBy);
            if (desc) {
                order = Order.desc(orderBy);
            }
            criteria.addOrder(order);
            criteria.addOrder(Order.asc(Role.NAME_PROPERTY));
        }

        return criteria;
    }

    public List<Privilege> findPrivilegesByIdRole(final Integer idRole) {
        Query query = getSession().createQuery(QUERY_PRIVILEGES_FROM_ROLE);
        query.setInteger("idRole", idRole);

        List<Privilege> privileges = query.list();
        return privileges;
    }

    private final static String QUERY_PRIVILEGES_FROM_ROLE = //
            "  SELECT r.privileges FROM " + //
                    "com.abiquo.server.core.enterprise.Role r " + //
                    "WHERE r.id = :idRole";

    private Criteria createCriteriaExactly(final Enterprise enterprise, final String filter, final String orderBy,
            final boolean desc, final boolean discardNullEnterprises) {
        Criteria criteria = createCriteria();

        if (enterprise != null) {
            if (discardNullEnterprises) {
                criteria.add(sameEnterprise(enterprise));
            } else {
                criteria.add(sameEnterpriseOrNull(enterprise));
            }

        }
        // BUG ABICLOUDPREMIUM-3124
        // else
        // {
        // criteria.add(genericRole());
        // }

        if (!StringUtils.isEmpty(filter)) {
            criteria.add(filterExactlyBy(filter));
        }

        if (!StringUtils.isEmpty(orderBy)) {
            Order order = Order.asc(orderBy);
            if (desc) {
                order = Order.desc(orderBy);
            }
            criteria.addOrder(order);
            criteria.addOrder(Order.asc(Role.NAME_PROPERTY));
        }

        return criteria;
    }
}