Spring XDについては、すでにこの質問をしています。現在、Spring CDF に移行しようとしています。
このリンクを見つけて、そこでコードを再利用し、エンコードを変更しようとしました。
次のPOMを作成しました。
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>tcp-ber-source</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>TCP Ber Source</name>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<tcp-app-starters-common.version>1.1.0.RELEASE</tcp-app-starters-common.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud.stream.app</groupId>
<artifactId>tcp-app-starters-common</artifactId>
<version>${tcp-app-starters-common.version}</version>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>ber-byte-array-serializers</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.SR3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
構成：
@EnableBinding(Source.class)
@EnableConfigurationProperties(TcpBerSourceProperties.class)
public class TcpBerSourceConfiguration {
private final Source channels;
private final TcpBerSourceProperties properties;
@Autowired
public TcpSourceConfiguration(final TcpBerSourceProperties properties, final Source channels) {
this.properties = properties;
this.channels = channels;
}
@Bean
public TcpReceivingChannelAdapter adapter(@Qualifier("tcpBerSourceConnectionFactory") final AbstractConnectionFactory connectionFactory) {
final TcpReceivingChannelAdapter adapter = new TcpReceivingChannelAdapter();
adapter.setConnectionFactory(connectionFactory);
adapter.setOutputChannel(this.channels.output());
return adapter;
}
@Bean
public TcpConnectionFactoryFactoryBean tcpBerSourceConnectionFactory(@Qualifier("tcpBerSourceDecoder") final AbstractByteArraySerializer decoder) throws Exception {
final 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 BerEncoderDecoderFactoryBean tcpBerSourceDecoder() {
final BerEncoderDecoderFactoryBean factoryBean = new BerEncoderDecoderFactoryBean(this.properties.getDecoder());
factoryBean.setMaxMessageSize(this.properties.getBufferSize());
return factoryBean;
}
}
そして、この FactoryBean:
public class BerEncoderDecoderFactoryBean extends AbstractFactoryBean<AbstractByteArraySerializer> implements ApplicationEventPublisherAware {
private final BerEncoding encoding;
private ApplicationEventPublisher applicationEventPublisher;
private Integer maxMessageSize;
public BerEncoderDecoderFactoryBean(final BerEncoding encoding) {
Assert.notNull(encoding, "'encoding' cannot be null");
this.encoding = encoding;
}
@Override
public void setApplicationEventPublisher(final ApplicationEventPublisher applicationEventPublisher) {
this.applicationEventPublisher = applicationEventPublisher;
}
/**
* The maximum message size allowed when decoding.
* @param maxMessageSize the maximum message size.
*/
public void setMaxMessageSize(final int maxMessageSize) {
this.maxMessageSize = maxMessageSize;
}
@Override
protected AbstractByteArraySerializer createInstance() throws Exception {
final AbstractByteArraySerializer codec;
switch (this.encoding) {
case SPLIT:
codec = new ByteArrayBerSplitSerializer();
break;
case EXTRACT:
codec = new ByteArrayBerExtractSerializer();
break;
default:
throw new IllegalArgumentException("Invalid encoding: " + this.encoding);
}
codec.setApplicationEventPublisher(this.applicationEventPublisher);
if (this.maxMessageSize != null) {
codec.setMaxMessageSize(this.maxMessageSize);
}
return codec;
}
@Override
public Class<?> getObjectType() {
return AbstractByteArraySerializer.class;
}
}
BerEncoding は単純な列挙型であり、TcpBerSourceProperties は非常に単純です。
これは正しいアプローチですか？
もしそうなら、どうすればこれを実行できますか？Spring Bootスタンドアロンアプリケーションとして実行するために言及されたリンクで見つけたtcpストリームアプリスターターのどこにも@SpringBootApplicationが表示されませんか?