Adding SSE Support in Java EE 8

DZone's Guide to

Adding SSE Support in Java EE 8

Reza Rahman

May. 30, 14 · Integration Zone ·

Free Resource

Like (0)

Comment (0)

Save

{{ articles[0].views | formatCount}} Views

How to Transform Your Business in the Digital Age: Learn how organizations are re-architecting their integration strategy with data-driven app integration for true digital transformation.

SSE (Server-Sent Event) is a standard mechanism used to push, over HTTP, server notifications to clients. SSE is often compared to WebSocket as they are both supported in HTML 5 and they both provide the server a way to push information to their clients but they are different too! See here for some of the pros and cons of using one or the other.

For REST application, SSE can be quite complementary as it offers an effective solution for a one-way publish-subscribe model, i.e. a REST client can 'subscribe' and get SSE based notifications from a REST endpoint. As a matter of fact, Jersey (JAX-RS Reference Implementation) already support SSE since quite some time (see the Jersey documentation for more details).

There might also be some cases where one might want to use SSE directly from the Servlet API. Sending SSE notifications using the Servlet API is relatively straight forward. To give you an idea, check here for 2 SSE examples based on the Servlet 3.1 API.

We are thinking about adding SSE support in Java EE 8 but the question is where as there are several options, in the platform, where SSE could potentially be supported:

the Servlet API
the WebSocket API
JAX-RS
or even having a dedicated SSE API, and thus a dedicated JSR too!

Santiago Pericas-Geertsen (JAX-RS Co-Spec Lead) conducted an initial investigation around that question. You can find the arguments for the different options and Santiago's findings here.

So at this stage JAX-RS seems to be a good choice to support SSE in Java EE. This will obviously be discussed in the respective JCP Expert Groups but what is your opinion on this question?

Make your mark on the industry’s leading annual report. Fill out the State of API Integration 2019 Survey and receive $25 to the Cloud Elements store.

DOWNLOAD

Topics:

Like (0)

Comment (0)

Save

{{ articles[0].views | formatCount}} Views

Published at DZone with permission of Reza Rahman , DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

Adding SSE Support in Java EE 8

Adding SSE Support in Java EE 8

Integration Partner Resources

Integration Partner Resources

{{ editionName }}

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.linkDescription }}

Adding SSE Support in Java EE 8

Adding SSE Support in Java EE 8

Like This Article? Read More From DZone

Integration Partner Resources

Integration Partner Resources

{{ editionName }}

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.linkDescription }}