org.springframework.integration.samples.travel.Main.java Source code

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Here is the source code for org.springframework.integration.samples.travel.Main.java

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/*
 * Copyright 2002-2017 the original author or authors.
 *
 * 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.springframework.integration.samples.travel;

import java.util.Scanner;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.context.support.GenericXmlApplicationContext;
import org.springframework.core.env.ConfigurableEnvironment;

public final class Main {

    private static final Log LOGGER = LogFactory.getLog(Main.class);

    /**
     * Prevent instantiation.
     */
    private Main() {
    }

    /**
     * @param args Not used.
     */
    public static void main(String... args) throws Exception {

        final GenericXmlApplicationContext context = new GenericXmlApplicationContext();

        final ConfigurableEnvironment env = context.getEnvironment();
        boolean mapQuestApiKeyDefined = env.containsProperty("mapquest.apikey");

        if (mapQuestApiKeyDefined) {
            env.setActiveProfiles("mapquest");
        }

        context.load("classpath:META-INF/spring/*.xml");
        context.refresh();

        final TravelGateway travelGateway = context.getBean("travelGateway", TravelGateway.class);

        final Scanner scanner = new Scanner(System.in);

        System.out.println("\n========================================================="
                + "\n                                                         "
                + "\n    Welcome to the Spring Integration Travel App!        "
                + "\n                                                         "
                + "\n    For more information please visit:                   "
                + "\n    http://www.springintegration.org/                    "
                + "\n                                                         "
                + "\n=========================================================");

        System.out.println(
                "Please select the city, for which you would like to get traffic and weather information:");

        for (City city : City.values()) {
            System.out.println(String.format("\t%s. %s", city.getId(), city.getName()));
        }
        System.out.println("\tq. Quit the application");
        System.out.print("Enter your choice: ");

        while (true) {
            final String input = scanner.nextLine();

            if ("q".equals(input.trim())) {
                System.out.println("Exiting application...bye.");
                break;
            } else {

                final Integer cityId = Integer.valueOf(input);
                final City city = City.getCityForId(cityId);

                final String weatherReply = travelGateway.getWeatherByCity(city);

                System.out.println("\n=========================================================" + "\n    Weather:"
                        + "\n=========================================================");
                System.out.println(weatherReply);

                if (mapQuestApiKeyDefined) {
                    final String trafficReply = travelGateway.getTrafficByCity(city);

                    System.out.println("\n========================================================="
                            + "\n    Traffic:" + "\n=========================================================");
                    System.out.println(trafficReply);
                } else {
                    LOGGER.warn("Skipping Traffic Information call. Did you setup your MapQuest API Key? "
                            + "e.g. by calling:\n\n    $ mvn exec:java -Dmapquest.apikey=\"your_mapquest_api_key_url_decoded\"");
                }

                System.out.println("\n=========================================================" + "\n    Done."
                        + "\n=========================================================");
                System.out.print("Enter your choice: ");
            }
        }

        scanner.close();
        context.close();
    }

}