eu.jasha.demo.sbtfragments.CityDao.java Source code

Java tutorial

Introduction

Here is the source code for eu.jasha.demo.sbtfragments.CityDao.java

Source

/*
 *   Copyright 2016 Jasha Joachimsthal
 *
 *   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 eu.jasha.demo.sbtfragments;

import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Repository;

import java.util.*;

@Repository
public class CityDao {

    private Set<City> cities = new HashSet<>();

    public Optional<City> find(String id) {
        return cities.stream().filter(c -> c.getId().equals(id)).findFirst();
    }

    public void add(City city) {
        cities.add(city);
    }

    public void update(City city) {
        remove(city.getId());
        add(city);
    }

    public void remove(String id) {
        if (StringUtils.isNotBlank(id)) {
            cities.removeIf(c -> c.getId().equals(id));
        }
    }

    public List<City> getAll() {
        List<City> cityList = new ArrayList<>(cities);
        cityList.sort((o1, o2) -> o1.getName().compareTo(o2.getName()));
        return cityList;
    }
}