SystemUserDAOImpl.java

/**
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/ 
* 
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations under
* the License.
* 
* The Original Code is OpenELIS code.
* 
* Copyright (C) The Minnesota Department of Health.  All Rights Reserved.
*/
package us.mn.state.health.lims.systemuser.daoimpl;

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

import org.apache.commons.beanutils.PropertyUtils;

import us.mn.state.health.lims.audittrail.dao.AuditTrailDAO;
import us.mn.state.health.lims.audittrail.daoimpl.AuditTrailDAOImpl;
import us.mn.state.health.lims.common.action.IActionConstants;
import us.mn.state.health.lims.common.daoimpl.BaseDAOImpl;
import us.mn.state.health.lims.common.exception.LIMSDuplicateRecordException;
import us.mn.state.health.lims.common.exception.LIMSRuntimeException;
import us.mn.state.health.lims.common.util.StringUtil;
import us.mn.state.health.lims.common.util.SystemConfiguration;
import us.mn.state.health.lims.common.log.LogEvent;
import us.mn.state.health.lims.hibernate.HibernateUtil;
import us.mn.state.health.lims.systemuser.dao.SystemUserDAO;
import us.mn.state.health.lims.systemuser.valueholder.SystemUser;

/**
 * @author diane benz
 */
public class SystemUserDAOImpl extends BaseDAOImpl implements SystemUserDAO {

	public void deleteData(List systemUsers) throws LIMSRuntimeException {
		//add to audit trail
		try {
			AuditTrailDAO auditDAO = new AuditTrailDAOImpl();
			for (int i = 0; i < systemUsers.size(); i++) {
				SystemUser data = (SystemUser)systemUsers.get(i);
			
				SystemUser oldData = (SystemUser)readSystemUser(data.getId());
				SystemUser newData = new SystemUser();

				String sysUserId = data.getSysUserId();
				String event = IActionConstants.AUDIT_TRAIL_DELETE;
				String tableName = "SYSTEM_USER";
				auditDAO.saveHistory(newData,oldData,sysUserId,event,tableName);
			}
		}  catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","AuditTrail deleteData()",e.toString());	
			throw new LIMSRuntimeException("Error in SystemUser AuditTrail deleteData()", e);
		}  
		
		try {		
			for (int i = 0; i < systemUsers.size(); i++) {
				SystemUser data = (SystemUser) systemUsers.get(i);
				SystemUser cloneData = (SystemUser)readSystemUser(data.getId());
				
				// Make the change to the object.
				cloneData.setIsActive(IActionConstants.NO);				
				HibernateUtil.getSession().merge(cloneData);	
				HibernateUtil.getSession().flush();
				HibernateUtil.getSession().clear();
				HibernateUtil.getSession().evict(cloneData);
				HibernateUtil.getSession().refresh(cloneData);
			}			
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","deleteData()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser deleteData()",e);
		} 
	}

	public boolean insertData(SystemUser systemUser) throws LIMSRuntimeException {

		try {
			// bugzilla 1482 throw Exception if record already exists
			if (duplicateSystemUserExists(systemUser)) {
				throw new LIMSDuplicateRecordException(
						"Duplicate record exists for " + systemUser.getFirstName() + BLANK + systemUser.getFirstName());
			}
			String id = (String)HibernateUtil.getSession().save(systemUser);
			systemUser.setId(id);
			
			//bugzilla 1824 inserts will be logged in history table
			AuditTrailDAO auditDAO = new AuditTrailDAOImpl();
			String sysUserId = systemUser.getSysUserId();
			String tableName = "SYSTEM_USER";
			auditDAO.saveNewHistory(systemUser,sysUserId,tableName);
			
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
							
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","insertData()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser insertData()",e);
		}
		
		return true;
	}

	public void updateData(SystemUser systemUser) throws LIMSRuntimeException {
		// bugzilla 1482 throw Exception if active record already exists
		try {
			if (duplicateSystemUserExists(systemUser)) {
				throw new LIMSDuplicateRecordException(
						"Duplicate record exists for " + systemUser.getLastName() + BLANK + systemUser.getFirstName());
			}
		} catch (Exception e) {
    		//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","updateData()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser updateData()", e);
		}
		
		SystemUser oldData = (SystemUser)readSystemUser(systemUser.getId());
		SystemUser newData = systemUser;

		//add to audit trail
		try {
			AuditTrailDAO auditDAO = new AuditTrailDAOImpl();
			String sysUserId = systemUser.getSysUserId();
			String event = IActionConstants.AUDIT_TRAIL_UPDATE;
			String tableName = "SYSTEM_USER";
			auditDAO.saveHistory(newData,oldData,sysUserId,event,tableName);
		}  catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","AuditTrail updateData()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser AuditTrail updateData()", e);
		}  
							
		try {
			HibernateUtil.getSession().merge(systemUser);
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
			HibernateUtil.getSession().evict(systemUser);
			HibernateUtil.getSession().refresh(systemUser);
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","updateData()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser updateData()",e);
		}
	}

	public void getData(SystemUser systemUser) throws LIMSRuntimeException {
		try {
			SystemUser sysUser = (SystemUser)HibernateUtil.getSession().get(SystemUser.class, systemUser.getId());
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();

			if (sysUser != null) {
				//System.out.println("Just read sysUser " + sysUser.getId() + " " + sysUser.getLastName());
				PropertyUtils.copyProperties(systemUser, sysUser);
			} else {
				systemUser.setId(null);
			}
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","getData()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser getData()", e);
		}
	}

	public List getAllSystemUsers() throws LIMSRuntimeException {
		List list = new Vector();
		try {
			String sql = "from SystemUser";
			org.hibernate.Query query = HibernateUtil.getSession().createQuery(sql);
			list = query.list();
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","getAllSystemUsers()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser getAllSystemUsers()", e);
		}

		return list;
	}

	public List getPageOfSystemUsers(int startingRecNo) throws LIMSRuntimeException {
		List list = new Vector();
		try {
			// calculate maxRow to be one more than the page size
			int endingRecNo = startingRecNo + (SystemConfiguration.getInstance().getDefaultPageSize() + 1);
			
			//bugzilla 1399
			String sql = "from SystemUser s order by s.lastName, s.firstName";
			org.hibernate.Query query = HibernateUtil.getSession().createQuery(sql);
			query.setFirstResult(startingRecNo-1);
			query.setMaxResults(endingRecNo-1); 
					
			list = query.list();
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","getPageOfSystemUsers()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser getPageOfSystemUsers()", e);
		}

		return list;
	}


	public SystemUser readSystemUser(String idString) {
		SystemUser su = null;
		try {
			su = (SystemUser)HibernateUtil.getSession().get(SystemUser.class, idString);
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","readSystemUser()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser readSystemUser()", e);
		}			
		
		return su;
	}
	
	public List getNextSystemUserRecord(String id) throws LIMSRuntimeException {

		return getNextRecord(id, "SystemUser", SystemUser.class);

	}

	public List getPreviousSystemUserRecord(String id)
			throws LIMSRuntimeException {

		return getPreviousRecord(id, "SystemUser", SystemUser.class);
	}

	//bugzilla 1411
	public Integer getTotalSystemUserCount() throws LIMSRuntimeException {
		return getTotalCount("SystemUser", SystemUser.class);
	}
	
//	bugzilla 1427
	public List getNextRecord(String id, String table, Class clazz) throws LIMSRuntimeException {	
		int currentId= (Integer.valueOf(id)).intValue();
		String tablePrefix = getTablePrefix(table);
		
		List list = new Vector();
		//bugzilla 1908
		int rrn = 0;
		try {
			//bugzilla 1908 cannot use named query for postgres because of oracle ROWNUM
			//instead get the list in this sortorder and determine the index of record with id = currentId
    		String sql = "select su.id from SystemUser su " +
					" order by su.lastName, su.firstName";

 			org.hibernate.Query query = HibernateUtil.getSession().createQuery(sql);
			list = query.list();
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
			rrn = list.indexOf(String.valueOf(currentId));

			list = HibernateUtil.getSession().getNamedQuery(
					tablePrefix + "getNext").setFirstResult(
					rrn + 1).setMaxResults(2).list();

		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","getNextRecord()",e.toString());
			throw new LIMSRuntimeException("Error in getNextRecord() for "
					+ table, e);
		}

		return list;		
	}

	//bugzilla 1427
	public List getPreviousRecord(String id, String table, Class clazz) throws LIMSRuntimeException {		
		int currentId= (Integer.valueOf(id)).intValue();
		String tablePrefix = getTablePrefix(table);
		
		List list = new Vector();
		//bugzilla 1908
		int rrn = 0;
		try {
			//bugzilla 1908 cannot use named query for postgres because of oracle ROWNUM
			//instead get the list in this sortorder and determine the index of record with id = currentId
    		String sql = "select su.id from SystemUser su " +
					" order by su.lastName desc, su.firstName desc";

 			org.hibernate.Query query = HibernateUtil.getSession().createQuery(sql);
			list = query.list();
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
			rrn = list.indexOf(String.valueOf(currentId));

			list = HibernateUtil.getSession().getNamedQuery(tablePrefix + "getPrevious")
			.setFirstResult(rrn + 1)
			.setMaxResults(2)
			.list(); 		
			
							
		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","getPreviousRecord()",e.toString());
			throw new LIMSRuntimeException("Error in getPreviousRecord() for " + table, e);
		} 

		return list;
	}
	
	//bugzilla 1482
	private boolean duplicateSystemUserExists(SystemUser systemUser) throws LIMSRuntimeException {
		try {
			
			List list = new ArrayList();
			
			// not case sensitive hemolysis and Hemolysis are considered
			// duplicates
			String sql = "from SystemUser t where trim(lower(t.lastName)) = :param and trim(lower(t.firstName)) = :param2 and t.id != :id";
			org.hibernate.Query query = HibernateUtil.getSession().createQuery(
					sql);
			query.setParameter("param", systemUser.getLastName().toLowerCase().trim());
			query.setParameter("param2", systemUser.getFirstName().toLowerCase().trim());

			//initialize with 0 (for new records where no id has been generated yet
			String sysUserId = "0";
			if (!StringUtil.isNullorNill(systemUser.getId())) {
				sysUserId = systemUser.getId();
			}
			query.setInteger("id", Integer.parseInt(sysUserId));

			list = query.list();
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
		
						
			if (list.size() > 0) {
				return true;
			} else {
				return false;
			}

		} catch (Exception e) {
			//bugzilla 2154
			LogEvent.logError("SystemUserDAOImpl","duplicateSystemUserExists()",e.toString());
			throw new LIMSRuntimeException("Error in duplicateSystemUserExists()", e);
		}
	}

	@SuppressWarnings("unchecked")
	public SystemUser getDataForLoginUser(String userName) throws LIMSRuntimeException {
		List<SystemUser> list;
		try {
			String sql = "from SystemUser where login_name = :name";
			org.hibernate.Query query = HibernateUtil.getSession().createQuery(sql);
			query.setString("name", userName);
			list = query.list();
			HibernateUtil.getSession().flush();
			HibernateUtil.getSession().clear();
		} catch (Exception e) {
			LogEvent.logError("SystemUserDAOImpl","getDataForUser()",e.toString());
			throw new LIMSRuntimeException("Error in SystemUser getDataForUser()", e);
		}

		return list.size() > 0 ? list.get(0) : null;
	}

	@Override
	public SystemUser getUserById(String userId) throws LIMSRuntimeException {
		try {
			SystemUser sysUser = (SystemUser)HibernateUtil.getSession().get(SystemUser.class, userId);
			closeSession();
			return sysUser;
		} catch (Exception e) {
			handleException(e, "getUserById");
		}
		
		return null;
	}

}