52 lines
1.5 KiB
Java
52 lines
1.5 KiB
Java
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/**
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* The ArrivalEvent is an Event which handles the arrival of a customer
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* It decides whether a customer should go into queue or go to a counter
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* It also allocates a counter to the customer. This event thus returns either a
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* DepartureEvent or a ServiceBeginEvent
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*
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* @author Yadunand Prem
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* @version CS2030S AY22/23 Semester 2
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*/
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class ArrivalEvent extends Event {
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private Customer customer;
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private Shop shop;
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public ArrivalEvent(Customer customer, Shop shop) {
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super(customer.getArrivalTIme());
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this.customer = customer;
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this.shop = shop;
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}
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@Override
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public Event[] simulate() {
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ShopCounter availableCounter = this.shop.getAvailableCounter();
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// check if counters are available. If none, push customer to queue if not full.
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// If full, customer departs
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if (availableCounter == null) {
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if (this.shop.isQueueFull()) {
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return new Event[] { new DepartureEvent(this.getTime(), customer, shop) };
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}
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Queue queue = this.shop.getQueue();
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System.out
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.println(String.format("%s: %s joined queue %s",
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super.toString(),
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this.customer, queue));
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queue.enq(customer);
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return new Event[] {};
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}
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return new Event[] {
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new ServiceBeginEvent(this.getTime(), customer, shop, availableCounter) };
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}
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@Override
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public String toString() {
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return String.format("%s: %s arrived %s",
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super.toString(),
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this.customer,
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this.shop.getQueue());
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}
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}
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