SpringAppConfig.java

/*
 * Copyright 2012-2013 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 com.kodcu.boot;

import com.kodcu.controller.ApplicationController;
import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
import org.springframework.boot.autoconfigure.web.*;
import org.springframework.boot.autoconfigure.websocket.WebSocketAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.context.annotation.*;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.socket.config.annotation.EnableWebSocket;
import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;

import javax.script.ScriptEngine;
import java.util.Base64;


@Configuration
@EnableWebSocket
@ComponentScan(basePackages = "com.kodcu.**")
//@EnableAutoConfiguration
@Import({
        DispatcherServletAutoConfiguration.class,
        EmbeddedServletContainerAutoConfiguration.class,
//        ErrorMvcAutoConfiguration.class,
        HttpEncodingAutoConfiguration.class,
        HttpMessageConvertersAutoConfiguration.class,
//        JacksonAutoConfiguration.class,
//        JmxAutoConfiguration.class,
//        MultipartAutoConfiguration.class,
        ServerPropertiesAutoConfiguration.class,
        PropertyPlaceholderAutoConfiguration.class,
//        ThymeleafAutoConfiguration.class,
        WebMvcAutoConfiguration.class,
        WebSocketAutoConfiguration.class,
})
public class SpringAppConfig extends SpringBootServletInitializer implements WebSocketConfigurer {

    @Autowired
    private ApplicationController applicationController;

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(applicationController, "/ws", "/ws**", "/ws/**").withSockJS();
    }

    @Bean
    @Lazy
    public NashornScriptEngineFactory nashornScriptEngineFactory() {
        NashornScriptEngineFactory nashornScriptEngineFactory = new NashornScriptEngineFactory();
        return nashornScriptEngineFactory;
    }

    @Bean
    @Scope("prototype")
    @Lazy
    public ScriptEngine scriptEngine() {
        ScriptEngine scriptEngine = nashornScriptEngineFactory()
                .getScriptEngine();
//                .getScriptEngine(new String[]{"--persistent-code-cache", "--class-cache-size=50"});
        return scriptEngine;
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {

        return application.sources(SpringAppConfig.class);
    }

    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate();
    }

    @Bean
    public Base64.Encoder base64Encoder() {
        return Base64.getEncoder();
    }


}