Vert.x未来处理程序设置

Question

请查看下面位于扩展abstractverticle类内部的代码：

@Override
public void start(Future<Void> serverStartFuture) throws Exception {

    log.info("Deploying " + this.getClass().toString() + " verticle...");

    //TODO: Handler is not calling.
    serverStartFuture.setHandler(event -> {
        if(event.succeeded()){
            log.info("Deploying " + this.getClass().toString() + " verticle SUCCESS");
        } else if (event.failed()){
            log.error("Deploying " + this.getClass().toString() + " verticle FAIL:");
            log.error(event.cause());
        }
    });

    /* To follow future compose pattern in future */
    Future<Void> initSteps = this.initHttpServ();
    initSteps.setHandler((AsyncResult<Void> asyncResult) -> {
        if(asyncResult.succeeded()){
            serverStartFuture.complete();
        }else if(asyncResult.failed()){
            serverStartFuture.fail(asyncResult.cause());
        }
    });

}

private Future<Void> initHttpServ(){
    Future<Void> httpServerFuture = Future.future();
    httpServerFuture.complete();
    return  httpServerFuture;
}

null

Answer 1

不应该设置ServerStartFuture处理程序。它由Vert.x在verticle部署时设置。你应该要么在你的角质成功开始时完成未来，要么在其他情况下失败。

请参见Vert.x核心文档中的异步Verticle启动和停止。