cpd4414.assign2.OrderQueue.java Source code

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Here is the source code for cpd4414.assign2.OrderQueue.java

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/*
 * Copyright 2015 Len Payne <len.payne@lambtoncollege.ca>.
 * Updated 2015 Mark Russell <mark.russell@lambtoncollege.ca>.
 *
 * Licensed under the Apache 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://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cpd4414.assign2;

import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Queue;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

/**
 *
 * @author Len Payne <len.payne@lambtoncollege.ca>
 */
public class OrderQueue {

    Queue<Order> orderQueue = new ArrayDeque<>();
    List<Order> ListOfOrder = new ArrayList<>();

    public void add(Order order) throws IfNoCustomer, IfNoPurchase {

        if (order.getCustomerId().isEmpty() && order.getCustomerName().isEmpty()) {
            throw new IfNoCustomer();
        }
        if (order.getListOfPurchases().isEmpty()) {
            throw new IfNoPurchase();
        }
        orderQueue.add(order);
        order.setTimeReceived(new Date());
    }

    public Order nextOrder() {

        return orderQueue.peek();
    }

    void process(Order ordernext) throws EmptyTimeReceived {

        if (ordernext.equals(nextOrder())) {

            //            boolean newflaghere = true;
            //            for (Purchase pr : ordernext.getListOfPurchases()) {
            //                if (Inventory.getQuantityForId(pr.getProductId()) < pr.getQuantity()) {
            //                    newflaghere = false;
            //                }
            //            }
            //            if (newflaghere) {
            ListOfOrder.add(orderQueue.remove());
            ordernext.setTimeProcessed(new Date());
            //         }
        } else if (ordernext.getTimeReceived() == null) {
            throw new EmptyTimeReceived();
        }

    }

    void methodfulfill(Order ordernext) throws EmptyTimeReceived, EmptyTimeprocessed {

        if (ordernext.getTimeReceived() == null) {
            throw new EmptyTimeReceived();
        }
        if (ordernext.getTimeProcessed() == null) {
            throw new EmptyTimeprocessed();
        }
        if (ListOfOrder.contains(ordernext))
            ordernext.setTimeFulfilled(new Date());
    }

    String generateReport() {
        String output = "";
        if (!(orderQueue.isEmpty() && ListOfOrder.isEmpty())) {
            JSONObject obj = new JSONObject();
            JSONArray orders = new JSONArray();

            for (Order o : ListOfOrder) {
                orders.add(o.tojsonconvert());
            }

            for (Order o : orderQueue) {
                orders.add(o.tojsonconvert());
            }

            obj.put("orders", orders);
            output = obj.toJSONString();
        }
        return output;
    }

    public class IfNoCustomer extends Exception {

        public IfNoCustomer() {
            super("There is no customer");
        }
    }

    public class IfNoPurchase extends Exception {

        public IfNoPurchase() {
            super("There is no purchase");
        }
    }

    public class EmptyTimeReceived extends Exception {
        public EmptyTimeReceived() {
            super(" Time received of this order is empty");
        }
    }

    public class EmptyTimeprocessed extends Exception {
        public EmptyTimeprocessed() {
            super(" Time received of this order is empty");
        }
    }
}