TcpSink.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.sink;

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.EnableBinding;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.cloud.stream.module.tcp.EncoderDecoderFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.ip.config.TcpConnectionFactoryFactoryBean;
import org.springframework.integration.ip.tcp.TcpSendingMessageHandler;
import org.springframework.integration.ip.tcp.connection.AbstractConnectionFactory;
import org.springframework.integration.ip.tcp.connection.TcpMessageMapper;
import org.springframework.integration.ip.tcp.serializer.AbstractByteArraySerializer;

/**
 * A sink module that sends data over TCP.
 *
 * @author Gary Russell
 */
@EnableBinding(Sink.class)
@EnableConfigurationProperties(TcpSinkProperties.class)
public class TcpSink {

	@Autowired
	private TcpSinkProperties properties;

	@Bean
	@ServiceActivator(inputChannel=Sink.INPUT)
	public TcpSendingMessageHandler handler(
			@Qualifier("tcpSinkConnectionFactory") AbstractConnectionFactory connectionFactory) {
		TcpSendingMessageHandler handler = new TcpSendingMessageHandler();
		handler.setConnectionFactory(connectionFactory);
		return handler;
	}

	@Bean
	public TcpConnectionFactoryFactoryBean tcpSinkConnectionFactory(
			@Qualifier("tcpSinkEncoder") AbstractByteArraySerializer encoder,
			@Qualifier("tcpSinkMapper") TcpMessageMapper mapper) throws Exception {
		TcpConnectionFactoryFactoryBean factoryBean = new TcpConnectionFactoryFactoryBean();
		factoryBean.setType("client");
		factoryBean.setHost(this.properties.getHost());
		factoryBean.setPort(this.properties.getPort());
		factoryBean.setUsingNio(this.properties.isNio());
		factoryBean.setUsingDirectBuffers(this.properties.isUseDirectBuffers());
		factoryBean.setLookupHost(this.properties.isReverseLookup());
		factoryBean.setSerializer(encoder);
		factoryBean.setSoTimeout(this.properties.getSocketTimeout());
		factoryBean.setMapper(mapper);
		factoryBean.setSingleUse(this.properties.isClose());
		return factoryBean;
	}

	@Bean
	public EncoderDecoderFactoryBean tcpSinkEncoder() {
		return new EncoderDecoderFactoryBean(this.properties.getEncoder());
	}

	@Bean
	public TcpMessageMapper tcpSinkMapper() {
		TcpMessageMapper mapper = new TcpMessageMapper();
		mapper.setCharset(this.properties.getCharset());
		return mapper;
	}

}