/**
* Return the list of registered drivers for the JSF page.
*
* @return A list of JSF SelectItem objects to fill a page component with the list of drivers.
*/
public List<SelectItem> getDriverList() {
List<SelectItem> driverList = new ArrayList<SelectItem>();
driverList.add(
new SelectItem(null, getI18nMessage("msgs", "manageAmbulances.text.currentDriver.none")));
List<Employee> drivers = employeeDAO.retrieveDrivers();
for (Employee driver : drivers)
driverList.add(new SelectItem(driver.getId(), driver.getName()));
return driverList;
}
/**
* Called from the assignment page's form, sends the data on the end of the current assignment
* and/or the beginning of a new one and changes the driver assigned to the ambulance.
*
* <p>This method executes a scenario in the service class.
*/
public void changeAssignment() {
// Only change an assignment if the driver actually changed.
if ((driverId != null)
&& (currentAssignment.getDriver() != null)
&& (driverId.equals(currentAssignment.getDriver().getId()))) {
logger.log(
Level.WARNING,
"Assigning ambulance # {0} (id {1}) with the same driver. Current assignment's driver's ID: {3}, supplied ID: {4}.",
new Object[] {
selectedEntity.getNumber(),
selectedEntity.getId(),
currentAssignment.getDriver().getId(),
driverId
});
addGlobalI18nMessage(
"msgs",
FacesMessage.SEVERITY_WARN,
"manageAmbulances.warn.sameDriverAssignment",
currentAssignment.getDriver().getName());
} else {
Employee driver = (driverId == null) ? null : employeeDAO.retrieveById(driverId);
try {
// If the driver was specified, create a new assignment, possibly ending a current
// assignment.
if (driver != null) {
logger.log(
Level.INFO,
"Assigning ambulance # {0} (id {1}). Driver: {2}.",
new Object[] {selectedEntity.getNumber(), selectedEntity.getId(), driver.getName()});
currentAssignment = getCrudService().assignAmbulance(selectedEntity, driver);
free = false;
addGlobalI18nMessage(
"msgs", FacesMessage.SEVERITY_INFO, "manageAmbulances.info.assignmentStarted");
}
// If not, end the current assignment.
else {
logger.log(
Level.INFO,
"Ending current assignment for ambulance # {0} (id {1}).",
new Object[] {selectedEntity.getNumber(), selectedEntity.getId()});
getCrudService().endCurrentAssignment(selectedEntity);
currentAssignment = null;
free = true;
addGlobalI18nMessage(
"msgs", FacesMessage.SEVERITY_INFO, "manageAmbulances.info.assignmentEnded");
}
} catch (AmbulanceHasMultipleCurrentDriverAssignmentsException e) {
logger.log(
Level.SEVERE,
"There has been an error while assigning a driver to ambulance # "
+ selectedEntity.getNumber()
+ " (id "
+ selectedEntity.getId()
+ ")",
e);
addGlobalI18nMessage(
"msgs",
FacesMessage.SEVERITY_ERROR,
"manageAmbulances.error.assignmentError",
selectedEntity.getNumber());
driverId = null;
} catch (AmbulanceHasNoCurrentDriverAssignmentsException e) {
logger.log(
Level.SEVERE,
"There has been an error while assigning a driver to ambulance # "
+ selectedEntity.getNumber()
+ " (id "
+ selectedEntity.getId()
+ ")",
e);
addGlobalI18nMessage(
"msgs",
FacesMessage.SEVERITY_ERROR,
"manageAmbulances.error.assignmentError",
selectedEntity.getNumber());
driverId = null;
} catch (EmployeeIsNotDriverException e) {
logger.log(
Level.SEVERE,
"There has been an error while assigning a driver to ambulance # "
+ selectedEntity.getNumber()
+ " (id "
+ selectedEntity.getId()
+ "): the specified employee ("
+ driver.getLogin()
+ ") is not a driver!",
e);
addGlobalI18nMessage(
"msgs",
FacesMessage.SEVERITY_ERROR,
"manageAmbulances.error.assignmentErrorNotDriver",
driver.getName(),
selectedEntity.getNumber());
driverId = null;
}
}
}
