java - 如何向 thorntail 添加自定义 undertow HttpHandler (fka.wildfly swarm)

Question

我开始使用thorntail V4 (www.thorntail.io)(以前称为wildfly swarm)来创建微服务。是的，我知道该网站将其称为“概念证明”。 Thorntail 附带 Undertow (www.undertow.io)。

有谁知道如何添加或注册自定义 undertow HttpHandler？

如何获取链中的下一个 HttpHandler 以便在 handleRequest() 中调用它？

我当前的 HttpHandler 如下所示:

import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

@ApplicationScoped
public class MyCustomHttpHandler implements HttpHandler {

    @Inject
    private HttpHandler next; // how do i get the next HttpHandler?

    public MyCustomHttpHandler() {
      System.out.println("MyCustomHttpHandler.java constructed"); // never gets called. How do i register it in Thorntail?
    }

    @Override
    public void handleRequest(HttpServerExchange httpServerExchange) throws Exception {
      // never gets called :/
      System.out.println(String.format("HttpHandler next=%s", next));

      // How do i get next? Is @Inject the way to go?
    }
}

提前致谢。

顺便说一句。有人可以添加“thorntail”标签吗？我的 StackOverflow-Rep 不允许这样做。

Answer 1

您的处理程序应如下所示:

public class MyCustomHttpHandler implements HttpHandler {

    private HttpHandler next;

    public MyCustomHttpHandler(HttpHandler next) {
      this.next = next;
      System.out.println("MyCustomHttpHandler.java constructed"); // never gets called. How do i register it in Thorntail?
    }

    @Override
    public void handleRequest(HttpServerExchange httpServerExchange) throws Exception {
      // never gets called :/
      System.out.println(String.format("HttpHandler next=%s", next));

      // How do i get next? Is @Inject the way to go?
    }
}

但是，目前看来 Thorntail v4 不支持将 HttpHandler 任意添加到链中。您可以在这里提出问题吗:https://github.com/thorntail/thorntail/issues