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* Copyright 2015, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* 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 org.jboss.as.quickstarts.wsat.simple;
import java.util.concurrent.atomic.AtomicInteger;
/**
* This class represents the back-end resource for managing Restaurant bookings.
*
* This is a mock implementation that just keeps a counter of how many bookings have been made.
*
* @author paul.robinson@redhat.com, 2012-01-04
*/
public class MockRestaurantManager {
// The singleton instance of this class.
private static MockRestaurantManager singletonInstance;
// A thread safe booking counter
private AtomicInteger bookings = new AtomicInteger(0);
/**
* Accessor to obtain the singleton restaurant manager instance.
*
* @return the singleton RestaurantManager instance.
*/
public static synchronized MockRestaurantManager getSingletonInstance() {
if (singletonInstance == null) {
singletonInstance = new MockRestaurantManager();
}
return singletonInstance;
}
/**
* Make a booking with the restaurant.
*
* @param txID The transaction identifier
*/
public synchronized void makeBooking(Object txID) {
System.out.println("[SERVICE] makeBooking called on backend resource.");
}
/**
* Prepare local state changes for the supplied transaction. This method should persist any required information to ensure
* that it can undo (rollback) or make permanent (commit) the work done inside this transaction, when told to do so.
*
* @param txID The transaction identifier
* @return true on success, false otherwise
*/
public boolean prepare(Object txID) {
System.out.println("[SERVICE] prepare called on backend resource.");
return true;
}
/**
* commit local state changes for the supplied transaction
*
* @param txID The transaction identifier
*/
public void commit(Object txID) {
System.out.println("[SERVICE] commit called on backend resource.");
bookings.getAndIncrement();
}
/**
* roll back local state changes for the supplied transaction
*
* @param txID The transaction identifier
*/
public void rollback(Object txID) {
System.out.println("[SERVICE] rollback called on backend resource.");
}
/**
* Returns the number of bookings
*
* @return the number of bookings.
*/
public int getBookingCount() {
return bookings.get();
}
/**
* Reset the booking counter to zero
*/
public void reset() {
bookings.set(0);
}
}