de.metas.ui.web.vaadin.VaadinClientApplication.java Source code

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Here is the source code for de.metas.ui.web.vaadin.VaadinClientApplication.java

Source

package de.metas.ui.web.vaadin;

import java.util.ArrayList;
import java.util.List;

import org.apache.catalina.connector.Connector;
import org.apache.coyote.http11.AbstractHttp11Protocol;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.context.embedded.tomcat.TomcatConnectorCustomizer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.core.env.Environment;
import org.springframework.http.MediaType;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
import org.springframework.web.client.RestTemplate;

import com.vaadin.spring.boot.internal.VaadinServletConfiguration;

import de.metas.ui.web.json.JsonHelper;

/*
 * #%L
 * de.metas.ui.vaadin
 * %%
 * Copyright (C) 2016 metas GmbH
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program. If not, see
 * <http://www.gnu.org/licenses/gpl-2.0.html>.
 * #L%
 */

@Configuration
@ComponentScan
// @ServletComponentScan({ "de.metas", "org.adempiere" })
@EnableAutoConfiguration(exclude = { DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class })
@EnableConfigurationProperties
// Make config here (vaadinServlet) override stuff in VaadinServletConfiguration
@Import(VaadinServletConfiguration.class)
public class VaadinClientApplication {
    public static final String PROFILE_NAME_TESTING = "testing";

    private static ConfigurableApplicationContext context;

    public static final void main(final String[] args) {
        context = new SpringApplicationBuilder(VaadinClientApplication.class).run(args);
    }

    public static final void autowire(final Object bean) {
        context.getAutowireCapableBeanFactory().autowireBean(bean);
    }

    /**
     * Configure embedded tomcat so that is use gzip for various resources.
     */
    @Bean
    public EmbeddedServletContainerCustomizer servletContainerCustomizer() {
        return new EmbeddedServletContainerCustomizer() {
            @Override
            public void customize(ConfigurableEmbeddedServletContainer servletContainer) {
                final TomcatEmbeddedServletContainerFactory tomcatContainerFactory = (TomcatEmbeddedServletContainerFactory) servletContainer;
                tomcatContainerFactory.addConnectorCustomizers(new TomcatConnectorCustomizer() {
                    @Override
                    public void customize(Connector connector) {
                        final AbstractHttp11Protocol<?> httpProtocol = (AbstractHttp11Protocol<?>) connector
                                .getProtocolHandler();
                        httpProtocol.setCompression("on");
                        httpProtocol.setCompressionMinSize(256);
                        String mimeTypes = httpProtocol.getCompressableMimeTypes();
                        String mimeTypesWithJson = mimeTypes + "," + MediaType.APPLICATION_JSON_VALUE
                                + ",application/javascript";
                        httpProtocol.setCompressableMimeTypes(mimeTypesWithJson);
                    }
                });
            }
        };
    }

    /**
     * Returns <code>true</code> if the testing profile is active.<br>
     * Activate it by adding <code>spring.profiles.include=testing</code> to the application properties.
     * <p>
     * Thx to http://stackoverflow.com/questions/9267799/how-do-you-get-current-active-default-environment-profile-programatically-in-spr
     *
     * @return
     */
    public static boolean isTesting() {
        final ApplicationContext context = VaadinClientApplication.context;
        if (context == null) {
            return false; // guard against NPE
        }
        final Environment environment = context.getEnvironment();
        if (environment == null) {
            return false; // guard against NPE
        }
        return environment.acceptsProfiles(PROFILE_NAME_TESTING);
    }

    @Bean
    public RestTemplate restTemplate() {
        final List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
        messageConverters.add(new MappingJackson2HttpMessageConverter(JsonHelper.createObjectMapper()));
        final RestTemplate restTemplate = new RestTemplate(messageConverters);

        final HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
        requestFactory.setReadTimeout(2000);
        requestFactory.setConnectTimeout(2000);
        restTemplate.setRequestFactory(requestFactory);

        return restTemplate;
    }

    @Bean
    public TaskScheduler taskScheduler() {
        return new ThreadPoolTaskScheduler();
    }
}