TcpSource.java

/*
 * Copyright 2015 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.cloud.stream.module.tcp.source;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.stream.annotation.Bindings;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.cloud.stream.module.tcp.EncoderDecoderFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.ip.config.TcpConnectionFactoryFactoryBean;
import org.springframework.integration.ip.tcp.TcpReceivingChannelAdapter;
import org.springframework.integration.ip.tcp.connection.AbstractConnectionFactory;
import org.springframework.integration.ip.tcp.serializer.AbstractByteArraySerializer;

/**
 * A source module that receives data over TCP.
 *
 * @author Gary Russell
 */
@EnableBinding(Source.class)
@EnableConfigurationProperties(TcpSourceProperties.class)
public class TcpSource {

	@Autowired
	@Bindings(TcpSource.class)
	private Source channels;

	@Autowired
	private TcpSourceProperties properties;

	@Bean
	public TcpReceivingChannelAdapter adapter(
			@Qualifier("tcpSourceConnectionFactory") AbstractConnectionFactory connectionFactory) {
		TcpReceivingChannelAdapter adapter = new TcpReceivingChannelAdapter();
		adapter.setConnectionFactory(connectionFactory);
		adapter.setOutputChannel(this.channels.output());
		return adapter;
	}

	@Bean
	public TcpConnectionFactoryFactoryBean tcpSourceConnectionFactory(
			@Qualifier("tcpSourceDecoder") AbstractByteArraySerializer decoder) throws Exception {
		TcpConnectionFactoryFactoryBean factoryBean = new TcpConnectionFactoryFactoryBean();
		factoryBean.setType("server");
		factoryBean.setPort(this.properties.getPort());
		factoryBean.setUsingNio(this.properties.isNio());
		factoryBean.setUsingDirectBuffers(this.properties.isUseDirectBuffers());
		factoryBean.setLookupHost(this.properties.isReverseLookup());
		factoryBean.setDeserializer(decoder);
		factoryBean.setSoTimeout(this.properties.getSocketTimeout());
		return factoryBean;
	}

	@Bean
	public EncoderDecoderFactoryBean tcpSourceDecoder() {
		EncoderDecoderFactoryBean factoryBean = new EncoderDecoderFactoryBean(this.properties.getDecoder());
		factoryBean.setMaxMessageSize(this.properties.getBufferSize());
		return factoryBean;
	}

}