DealerBean.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2013, 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.switchyard.quickstarts.demo.txpropagation;

import javax.inject.Inject;
import javax.naming.InitialContext;
import javax.transaction.UserTransaction;

import org.switchyard.component.bean.Reference;
import org.switchyard.component.bean.Service;

@Service(Dealer.class)
public class DealerBean implements Dealer {

    @Inject
    @Reference
    private CreditCheckService creditService;

    @Inject
    @Reference
    private DealLogger dealLogger;

    @Override
    public Deal offer(Offer offer) {
        System.out.println("Dealer Service : Received an offer");
        Deal deal = new Deal();
        deal.setOffer(offer);

        // If the offer is more than 10% off, then reject it
        if (offer.getCar().getPrice() * .9 > offer.getAmount()) {
            deal.setAccepted(false);
            return deal;
        }

        System.out.println("Dealer Service : Checking Credit");
        // Check credit of applicant
        Application creditReply = creditService.checkCredit(offer);
        offer.getApplication().setApproved(creditReply.isApproved());
        deal.setAccepted(creditReply.isApproved());

        if (!deal.isAccepted()) {
            try {
                UserTransaction tx = (UserTransaction) new InitialContext().lookup("java:jboss/UserTransaction");
                tx.setRollbackOnly();
                System.out.println("Dealer Service : Low credit score - transaction has been rolled back");
            } catch (Exception e) {
                throw new RuntimeException("Failed to rollback transaction", e);
            }
        } else {
            dealLogger.store(deal);
        }

        return deal;
    }

}