/**
* Asks a question for a given employee
*
* @param employee the Employee to assist
*/
public void askQuestion(Employee employee) {
// Add question to queue
long startCheck = System.currentTimeMillis();
synchronized (hasQuestion) {
hasQuestion.add(employee);
}
// Waiting until question can be answered
while (hasQuestion.contains(employee)) {
// Is it time for the 4 o'clock meeting?
try {
if (office.getTime() >= 1600 && !employee.isAttendedEndOfDayMeeting()) {
office.waitForEndOfDayMeeting();
System.out.println(
office.getStringTime()
+ " Developer "
+ employee.getEmployeeName()
+ " attends end of day meeting");
sleep(150);
employee.setAttendedEndOfDayMeeting(true);
}
synchronized (questionLock) {
// Tell the Manager there is a question.
office.notifyWorking();
questionLock.wait();
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
synchronized (questionLock) {
// Question is being answered
while (employee.isWaitingQuestion()) {
try {
questionLock.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
long endCheck = System.currentTimeMillis();
employee.addToWaitingQuestion((endCheck - startCheck) / 10);
System.out.println(
office.getStringTime()
+ " Developer "
+ employee.getEmployeeName()
+ "'s question is answered");
}
/** Answers a question for a given employee */
private void answerQuestion() {
// Gets the top question from the queue
Employee employee;
// If it's still before closing time
if (office.getTime() < 1700) {
// Notify that a question is being answered
synchronized (questionLock) {
employee = hasQuestion.poll();
questionLock.notifyAll();
}
// Answer the question
try {
System.out.println(
office.getStringTime()
+ " Manager starts answering question from Developer "
+ employee.getEmployeeName()
+ ".");
sleep(100);
System.out.println(office.getStringTime() + " Manager answers question.");
} catch (InterruptedException e) {
e.printStackTrace();
}
// Tell the employee the answer to the question
employee.questionAnswered();
// Notify remaining questioners
synchronized (questionLock) {
questionLock.notifyAll();
}
} else {
// If it's not closing time, keep answering questions
while (!hasQuestion.isEmpty()) {
employee = hasQuestion.poll();
employee.questionAnswered();
}
// Inform employees that you have answered a question
synchronized (questionLock) {
questionLock.notifyAll();
}
}
}