au.edu.anu.metadatastores.services.aries.DepartmentId.java Source code

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Here is the source code for au.edu.anu.metadatastores.services.aries.DepartmentId.java

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/*******************************************************************************
 * Australian National University Metadata Stores
 * Copyright (C) 2013  The Australian National University
 * 
 * This file is part of Australian National University Metadata Stores.
 * 
 * Australian National University Metadata Stores is free software: you
 * can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

package au.edu.anu.metadatastores.services.aries;

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

import org.hibernate.Query;
import org.hibernate.Session;

import au.edu.anu.metadatastores.datamodel.aries.grants.ContractsGrantsDepartments;
import au.edu.anu.metadatastores.datamodel.aries.grants.Departments;

/**
 * 
 * <p>DepartmentId<p>
 * 
 * <p>The Australian National University</p>
 * 
 * <p>Retrieves information about departments</p>
 * 
 * @author Genevieve Turner
 *
 */
public class DepartmentId {
    private static DepartmentId singleton_;

    /**
     * Constructor
     */
    private DepartmentId() {

    }

    /**
     * Get a singleton of DepartmentId
     * 
     * @return The DepartmentId instance
     */
    public static synchronized DepartmentId getSingleton() {
        if (singleton_ == null) {
            singleton_ = new DepartmentId();
        }
        return singleton_;
    }

    /**
     * Get a list of department ids
     * 
     * @return The department ids
     */
    public String[] getDepartmentIDs() {
        Session session = AriesHibernateUtil.getSessionFactory().openSession();
        try {
            @SuppressWarnings("unchecked")
            List<ContractsGrantsDepartments> departments = session.createQuery("from ContractsGrantsDepartments")
                    .list();

            List<String> departmentIds = new ArrayList<String>();

            for (ContractsGrantsDepartments department : departments) {
                if (department != null && department.getId() != null
                        && !departmentIds.contains(department.getId().getChrDepartmentCode())) {
                    departmentIds.add(department.getId().getChrDepartmentCode());
                }
            }

            return departmentIds.toArray(new String[0]);
        } finally {
            session.close();
        }
    }

    /**
     * Get an array of department names given the department ids
     * 
     * @param departmentIDs The department ids to get the name of
     * @return The array of department names
     */
    public String[] getDepartmentNames(String[] departmentIDs) {
        Session session = AriesHibernateUtil.getSessionFactory().openSession();
        try {
            Query query = session.createQuery("from Departments where trim(chrTier3code) in :departmentIDs");
            query.setParameterList("departmentIDs", departmentIDs);

            @SuppressWarnings("unchecked")
            List<Departments> departments = query.list();

            String[] departmentNames = new String[departmentIDs.length];
            boolean foundDepartment = false;
            String departmentName = null;
            for (int i = 0; i < departmentIDs.length; i++) {
                for (Departments department : departments) {
                    if (department != null) {
                        department.getId().getChrTier3code().trim();
                        if (department.getId().getChrTier3code().trim().equals(departmentIDs[i])) {
                            departmentName = department.getId().getChrTier3name();
                            foundDepartment = true;
                            break;
                        }
                    }
                }

                if (foundDepartment) {
                    departmentNames[i] = departmentName;
                } else {
                    departmentNames[i] = "No name found for this department ID";
                }
                foundDepartment = false;
            }

            return departmentNames;
        } finally {
            session.close();
        }
    }
}