Vertx Java使用Future Callback部署JavaScript Verticle

时间:2016-03-09 19:31:03

标签: vertx3 vert.x

我想在我的Java VertX里面部署一个javascript Verticle。当然,这不是问题。问题是,我怎样才能给他们回电?

我的Java代码:

    Vertx.clusteredVertx(vertxOptions, res ->
    {
        if (res.succeeded()) {
            logger.info("Cluster ready, starting verticle deploy");
            /*
             * React JS Server Deploy
             */
            Future< String > reactVerticleFuture = Future.future();

            vertx.executeBlocking(future ->
            {
                vertx.deployVerticle("dist/server.js", options, deployResult ->
                {
                    if (deployResult.succeeded()) {
                        future.complete();
                    } else {
                        future.fail(deployResult.cause());
                    }
                });

            } , reactVerticleFuture.completer());

             CompositeFuture.all(..., reactVerticleFuture).setHandler(ar ->
            {
               /*
                * deploy http listener and health endpoint
                */
            });
        } else {
            logger.error(res.cause().getMessage(), res.cause());
        }
    });

我的server.js:

exports.vertxStartAsync = function(startFuture) {

console.log('vertxStartAsync')

var eb = vertx.eventBus()
var consumer = eb.consumer('httpGetWebChannel', function (message) {
})

consumer.completionHandler(function (res, res_err) {
    if (res_err == null) {
        console.log("The handler registration has reached all nodes");

        startFuture.complete()
    } else {
        console.log("Registration failed!");

        startFuture.fail()
    }
});
}

当然,我的server.js更大,这需要一些时间来启动。在我的群集Vertx中,我在启动过程中得到一些阻止我的总线的消息。

我该如何解决这个问题?

由于 烫发

1 个答案:

答案 0 :(得分:1)

好的,我们找到了解决方案(alexvetter - 感谢您的耐心等待)。

问题是我用webpack构建我的server.js文件,在构建之后,exports块在一个函数内。

这是可行的解决方案:

webpack.config.js

var WrapperPlugin = require('wrapper-webpack-plugin');

... 

plugins: [
        new WrapperPlugin({
            header: 'exports.vertxStartAsync = function(startFuture) {\n',
            footer: '}\n'
        }),
...
]
...

server.js

var eb = vertx.eventBus()
var consumer = eb.consumer('httpGetWebChannel', function (message) {
  ...
})

consumer.completionHandler(function (res, res_err) {
    if (res_err == null) {
        console.log("The handler registration has reached all nodes");

        startFuture.complete()
    } else {
        console.log("Registration failed!");

        startFuture.fail()
    }
});

由于