org.jasig.ssp.dao.external.ExternalCourseRequisiteDao.java Source code

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Here is the source code for org.jasig.ssp.dao.external.ExternalCourseRequisiteDao.java

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/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.jasig.ssp.dao.external;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.hibernate.Criteria;
import org.hibernate.criterion.Restrictions;
import org.jasig.ssp.model.external.ExternalCourseRequisite;
import org.jasig.ssp.model.external.RequisiteCode;
import org.springframework.stereotype.Repository;

@Repository
public class ExternalCourseRequisiteDao extends AbstractExternalDataDao<ExternalCourseRequisite> {

    public ExternalCourseRequisiteDao() {
        super(ExternalCourseRequisite.class);
    }

    @SuppressWarnings("unchecked")
    public List<ExternalCourseRequisite> getRequisitesForCourse(String requiringCourseCode) {
        if (StringUtils.isBlank(requiringCourseCode)) {
            return new ArrayList<ExternalCourseRequisite>();
        }
        Criteria criteria = this.createCriteria();
        criteria.add(Restrictions.or(Restrictions.eq("requiringCourseCode", requiringCourseCode),
                Restrictions.and(Restrictions.eq("requiredCourseCode", requiringCourseCode),
                        Restrictions.ne("requisiteCode", RequisiteCode.PRE))));
        return (List<ExternalCourseRequisite>) criteria.list();
    }

    @SuppressWarnings("unchecked")
    public List<ExternalCourseRequisite> getRequisitesForCourses(List<String> requiringCourseCode) {
        if (requiringCourseCode == null || requiringCourseCode.isEmpty()) {
            return new ArrayList<ExternalCourseRequisite>();
        }
        Criteria criteria = this.createCriteria();
        criteria.add(Restrictions.in("requiringCourseCode", requiringCourseCode));
        return (List<ExternalCourseRequisite>) criteria.list();
    }
}