79 lines
2.3 KiB
Java
79 lines
2.3 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sessions;
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import java.io.Serializable;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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public class DummyCart implements Serializable {
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private static final long serialVersionUID = 1L;
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final Set<Item> items = Collections.synchronizedSet(new HashSet<>());
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int itemId = -1;
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String submit = null;
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public void setItemId(int itemId) {
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this.itemId = itemId;
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}
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public void setSubmit(String s) {
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submit = s;
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}
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private void addItem(int itemId) {
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try {
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items.add(Item.values()[itemId]);
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} catch (ArrayIndexOutOfBoundsException e) {
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// Ignore. Can only happen if user edits URL directly.
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}
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}
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private void removeItem(int itemId) {
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try {
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items.remove(Item.values()[itemId]);
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} catch (ArrayIndexOutOfBoundsException e) {
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// Ignore. Can only happen if user edits URL directly.
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}
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}
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public Item[] getItems() {
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return items.toArray(new Item[0]);
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}
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public void processRequest() {
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// null value for submit - user hit enter instead of clicking on
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// "add" or "remove"
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if (submit == null || submit.equals("add")) {
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addItem(itemId);
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} else if (submit.equals("remove")) {
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removeItem(itemId);
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}
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// reset at the end of the request
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reset();
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}
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// reset
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private void reset() {
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submit = null;
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itemId = -1;
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}
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}
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