WebSocketConfig.java

package com.msgilligan.bitcoinj.spring.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.converter.DefaultContentTypeResolver;
import org.springframework.messaging.converter.MappingJackson2MessageConverter;
import org.springframework.messaging.converter.MessageConverter;
import org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolver;
import org.springframework.messaging.handler.invocation.HandlerMethodReturnValueHandler;
import org.springframework.messaging.simp.config.ChannelRegistration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.util.MimeTypeUtils;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.WebSocketTransportRegistration;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;

import java.util.List;

/**
 */
@Configuration
@EnableWebSocketMessageBroker
@ComponentScan(basePackages="com.msgilligan.peerlist")
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
    @Autowired ObjectMapper objectMapper;   // Seems to get injected with objectMapper with our added Module

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/stomp").withSockJS();
    }

    @Override
    public void configureWebSocketTransport(WebSocketTransportRegistration registration) {
        registration.setSendTimeLimit(15 * 1000).setSendBufferSizeLimit(512 * 1024);
    }

    @Override
    public void configureClientInboundChannel(ChannelRegistration registration) {
    }

    @Override
    public void configureClientOutboundChannel(ChannelRegistration registration) {
        registration.taskExecutor().corePoolSize(4).maxPoolSize(10);
    }

    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        // TODO: ??
    }

    @Override
    public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) {
        // TODO: ??
    }

    @Override
    public boolean configureMessageConverters(List<MessageConverter> messageConverters) {
        // Workaround for issue 2445: https://github.com/spring-projects/spring-boot/issues/2445
        DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
        resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);
        MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
        converter.setObjectMapper(objectMapper);
        converter.setContentTypeResolver(resolver);
        messageConverters.add(converter);
        return false;
    }

    @Override
    public void configureMessageBroker(MessageBrokerRegistry configurer) {
        configurer.enableSimpleBroker("/queue/", "/topic/");
        configurer.setApplicationDestinationPrefixes("/app");
    }

}