simple.flow.Application.java Source code

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Here is the source code for simple.flow.Application.java

Source

package simple.flow;

/*
 * Copyright 2014 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.
 */

import java.util.Map;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
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.http.HttpMethod;
import org.springframework.integration.annotation.IntegrationComponentScan;
import org.springframework.integration.annotation.MessagingGateway;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.support.GenericHandler;
import org.springframework.integration.http.inbound.HttpRequestHandlingMessagingGateway;
import org.springframework.integration.http.inbound.RequestMapping;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;

@Configuration
@ComponentScan
@IntegrationComponentScan
@EnableAutoConfiguration
public class Application {

    public static void main(String[] args) throws Exception {
        ConfigurableApplicationContext ctx = SpringApplication.run(Application.class, args);
    }

    @MessagingGateway(defaultRequestChannel = "requestChannel1")
    public interface Gateway {
        String sendReceive(String in);
    }

    @MessagingGateway(defaultRequestChannel = "requestChannel2")
    public interface Gate {
        String sendReceive(String in);
    }

    @Bean
    public HttpRequestHandlingMessagingGateway httpGate1() {
        HttpRequestHandlingMessagingGateway gateway = new HttpRequestHandlingMessagingGateway(true);
        RequestMapping mapping = new RequestMapping();
        mapping.setMethods(HttpMethod.POST);
        mapping.setPathPatterns("/requestChannel1");
        gateway.setRequestMapping(mapping);
        gateway.setRequestChannel(requestChannel1());
        gateway.setRequestPayloadType(String.class);
        return gateway;
    }

    @Bean
    public HttpRequestHandlingMessagingGateway httpGate2() {
        HttpRequestHandlingMessagingGateway gateway = new HttpRequestHandlingMessagingGateway(true);
        RequestMapping mapping = new RequestMapping();
        mapping.setMethods(HttpMethod.POST);
        mapping.setPathPatterns("/requestChannel2");
        gateway.setRequestMapping(mapping);
        gateway.setRequestChannel(requestChannel2());
        gateway.setRequestPayloadType(String.class);
        return gateway;
    }

    @Bean
    public MessageChannel requestChannel1() {
        return new DirectChannel();
    }

    @Bean
    public MessageChannel requestChannel2() {
        return new DirectChannel();
    }

    @Bean
    public IntegrationFlow flow() {
        return IntegrationFlows.from("requestChannel1").handle(new GenericHandler<Message>() {
            @Override
            public Object handle(Message payload, Map<String, Object> headers) {
                System.out
                        .println("requestChannel1 " + payload.getPayload().getClass() + " " + payload.getPayload());
                return payload;
            }
        }).get();
    }

    @Bean
    public IntegrationFlow errorFlow() {
        return IntegrationFlows.from("requestChannel2").handle(new GenericHandler<Message>() {
            @Override
            public Object handle(Message payload, Map<String, Object> headers) {
                System.out
                        .println("requestChannel2 " + payload.getPayload().getClass() + " " + payload.getPayload());
                return payload;
            }
        }).get();
    }

}