/*
* The contents of this file are subject to the OpenMRS Public 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
* http://license.openmrs.org
*
* 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.
*
* Copyright (C) OpenHMIS. All Rights Reserved.
*/
package org.openmrs.module.openhmis.cashier.web.filter;
import java.io.IOException;
import java.util.Date;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openmrs.Provider;
import org.openmrs.User;
import org.openmrs.api.ProviderService;
import org.openmrs.api.context.Context;
import org.openmrs.module.openhmis.cashier.api.ITimesheetService;
import org.openmrs.module.openhmis.cashier.api.model.Timesheet;
import org.openmrs.module.openhmis.cashier.api.util.PrivilegeConstants;
import org.openmrs.module.openhmis.commons.api.ProviderUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* Performs the neccessary filters when a cashier logs out. Implements {@link Filter}
*/
@Component
public class CashierLogoutFilter implements Filter {
private static final Log LOG = LogFactory.getLog(CashierLogoutFilter.class);
private static final String PROVIDER_ERROR_LOG_MESSAGE = "Could not locate the Provider";
private static final Object TIMESHEET_ERROR_LOG_MESSAGE = "Could not locate Timesheet";
@Autowired
private ProviderService providerService;
@Autowired
private ITimesheetService timesheetService;
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
ServletException {
LOG.debug("doCashierLogoutFilter");
clockOutCashier();
chain.doFilter(request, response);
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void destroy() {
}
private void clockOutCashier() {
if (!userIsCashier()) {
return;
}
Provider provider = ProviderUtil.getCurrentProvider(providerService);
if (provider == null) {
LOG.error(PROVIDER_ERROR_LOG_MESSAGE);
return;
}
Timesheet timesheet = timesheetService.getCurrentTimesheet(provider);
if (timesheet == null) {
LOG.error(TIMESHEET_ERROR_LOG_MESSAGE);
return;
}
if (cashierIsClockedIn(timesheet)) {
timesheet.setClockOut(new Date());
timesheetService.save(timesheet);
}
}
private boolean userIsCashier() {
boolean result = false;
User authenticatedUser = Context.getAuthenticatedUser();
if (authenticatedUser != null) {
result = authenticatedUser.hasPrivilege(PrivilegeConstants.MANAGE_TIMESHEETS);
}
return result;
}
private boolean cashierIsClockedIn(Timesheet timesheet) {
return timesheet != null && timesheet.getClockIn() != null;
}
}