Spring Integration メッセージ中継のベストプラクティス

前提・実現したいこと

Spring Integrationにて異なるプロトコル間（HTTP通信・ソケット通信）のデータ通信*1をWebアプリとして実現したいです。
*1 クライアント -> (HTTP通信) -> Webアプリ -> (ソケット通信) -> 他サーバー

下記実装で疎通確認出来たのですが、下記設計(実装)がベストプラクティスなのかご教示頂きたいです。
DispatcherServlet -> inbound-gateway -> Channel -> ServiceActivator -> Channel -> tcp-outbound-gateway

Spring Integrationの知識が乏しく、見当違いなことを言っていたら指摘お願いします。

該当のソースコード

web.xml

<servlet>
	<servlet-name>appServlet</servlet-name>
	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	<init-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/servlet-config.xml</param-value>
	</init-param>
	<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
	<servlet-name>appServlet</servlet-name>
	<url-pattern>/*</url-pattern>
</servlet-mapping>

servlet-config.xml

xml
1<context:component-scan base-package="jp.co.sample"/>
2
3<int-http:inbound-gateway
4	request-channel="channel" path="/" supported-methods="POST"
5	request-payload-type="byte[]" />
6
7<int:channel id="channel" />

SampleService.java

java
1package jp.co.sample;
2
3@EnableIntegration
4@MessageEndpoint
5public class SampleService {
6
7	@ServiceActivator(inputChannel="channel")
8	public byte[] send(byte[] requestParam) {
9		final GenericXmlApplicationContext context = SampleService.setupContext();
10		final SampleGateway gateway = context.getBean(SampleGateway.class);
11		return gateway.send(requestParam);
12	}
13
14	public static GenericXmlApplicationContext setupContext() {
15		final GenericXmlApplicationContext context = new GenericXmlApplicationContext();
16		context.load("classpath:META-INF/spring/integration/sample-context.xml");
17		context.registerShutdownHook();
18		context.refresh();
19		return context;
20	}
21}

sample-context.xml

xml
1<context:property-placeholder
2	location="classpath*:META-INF/spring/integration/*.properties"
3	local-override="true" />
4
5<int:gateway id="gateway"
6	service-interface="jp.co.sample.SampleGateway"
7	default-request-channel="request" error-channel="errorChannel" />
8
9<int-ip:tcp-connection-factory
10	id="client" type="client" host="${server.host}"
11	port="${server.port}" single-use="true" so-timeout="10000"
12	serializer="byteArrayRawSerializer"
13	deserializer="byteArrayRawSerializer" />
14
15<int:channel id="request" />
16
17<int-ip:tcp-outbound-gateway
18	id="outGateway" request-channel="request" connection-factory="client"
19	request-timeout="10000" reply-timeout="10000" />
20
21<bean id="byteArrayRawSerializer"
22	class="org.springframework.integration.ip.tcp.serializer.ByteArrayRawSerializer">
23	<property name="maxMessageSize" value="100000" />
24</bean>
25
26<int:transformer id="errorHandler"
27	input-channel="errorChannel"
28	expression="payload.failedMessage.payload + ':' + payload.cause.message" />