CityServiceImpl.java

/*
 * COMSAT
 * Copyright (c) 2013-2014, Parallel Universe Software Co. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 3.0
 * as published by the Free Software Foundation.
 */
/*
 * Based on the corresponding class in Spring Boot Samples.
 * Copyright the original author(s).
 * Released under the ASF 2.0 license.
 */
package comsat.sample.data.jpa.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;

import comsat.sample.data.jpa.domain.City;
import comsat.sample.data.jpa.domain.HotelSummary;

@Component("cityService")
@Transactional
class CityServiceImpl implements CityService {

    private final CityRepository cityRepository;

    private final HotelRepository hotelRepository;

    @Autowired
    public CityServiceImpl(CityRepository cityRepository, HotelRepository hotelRepository) {
        this.cityRepository = cityRepository;
        this.hotelRepository = hotelRepository;
    }

    @Override
    public Page<City> findCities(CitySearchCriteria criteria, Pageable pageable) {

        Assert.notNull(criteria, "Criteria must not be null");
        String name = criteria.getName();

        if (!StringUtils.hasLength(name)) {
            return this.cityRepository.findAll(null);
        }

        String country = "";
        int splitPos = name.lastIndexOf(",");

        if (splitPos >= 0) {
            country = name.substring(splitPos + 1);
            name = name.substring(0, splitPos);
        }

        return this.cityRepository
                .findByNameContainingAndCountryContainingAllIgnoringCase(name.trim(),
                        country.trim(), pageable);
    }

    @Override
    public City getCity(String name, String country) {
        Assert.notNull(name, "Name must not be null");
        Assert.notNull(country, "Country must not be null");
        return this.cityRepository.findByNameAndCountryAllIgnoringCase(name, country);
    }

    @Override
    public Page<HotelSummary> getHotels(City city, Pageable pageable) {
        Assert.notNull(city, "City must not be null");
        return this.hotelRepository.findByCity(city, pageable);
    }
}