How can I create xslt-transformer with JAVA config in Spring integration?

Question

I have the following xslt-transformer in Spring-Integration. How can I do the same configuration with Java Config?

<si-xml:xslt-transformer input-channel="input" output-channel="output"
                         xsl-resource="classpath:/test.xsl"
                         result-transformer="resultToDoc"/>

Answer 1

@Transformer(inputChannel = "input", outputChannel = "output")
@Bean
public XsltPayloadTransformer transformer() {
    return new XsltPayloadTransformer(new ClassPathResource("classpath:/test.xsl"),
            resultToDoc());
}

From other side consider to use Spring Integration Java DSL, where the same will me much simpler:

@Value("classpath:/test.xsl")
private Resource xsl;

.transform(Transformers.xslt(this.xsl))

Answer 2

@ServiceActivator(inputChannel="input")
@Bean
public MessageHandler xsltt() {
    MessageTransformingHandler handler = new MessageTransformingHandler(transformer());
    handler.setOutputChannelName("output");
    return handler;
}

@Bean
public Transformer transformer() {
    return new XsltPayloadTransformer(new ClassPathResource("classpath:/test.xsl"),
            resultToDoc());
}