itests/jpa-container-blueprint-testbundle/src/main/java/org/apache/aries/jpa/container/itest/bundle/blueprint/impl/CarServiceWithRequiresNew.java

/*  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.apache.aries.jpa.container.itest.bundle.blueprint.impl;

import java.util.Arrays;
import java.util.Collection;

import javax.transaction.Transactional;
import javax.transaction.Transactional.TxType;

import org.apache.aries.jpa.container.itest.entities.Car;
import org.apache.aries.jpa.container.itest.entities.CarService;
import org.osgi.framework.BundleContext;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceReference;

public class CarServiceWithRequiresNew extends AbstractCarServiceImpl {
    BundleContext bundleContext;

    @Override
    @Transactional(TxType.REQUIRES_NEW)
    public Car getCar(String id) {
        return em.find(Car.class, id);
    }

    @Override
    @Transactional(TxType.REQUIRES_NEW)
    public void addCar(Car car) {
        em.persist(car);
        em.flush();
    }

    @Override
    @Transactional(TxType.NEVER)
    public Collection<Car> getCars() {
        Car c = new Car();
        c.setNumberPlate("TR123");
        ServiceReference<CarService> ref = null;
        try {
            ref = getService();
            CarService carService = bundleContext.getService(ref);
            carService.addCar(c);
            return Arrays.asList(this.getCar("TR123"));
        } finally {
            if (ref != null) {
                bundleContext.ungetService(ref);
            }
        }
    }

    private ServiceReference<CarService> getService() {
        try {
            Collection<ServiceReference<CarService>> refs = bundleContext.getServiceReferences(CarService.class, "(type=rn)");
            return refs.iterator().next();
        } catch (InvalidSyntaxException e) {
            throw new RuntimeException(e.getMessage(), e);
        }
    }

    @Override
    public void updateCar(Car car) {
    }

    @Override
    public void deleteCar(String id) {
    }

    public void setBundleContext(BundleContext bundleContext) {
        this.bundleContext = bundleContext;
    }

}