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Status message

This proposal has been approved and the Eclipse LSP4J project has been created.

Eclipse LSP4J

Basics
This proposal is in the Project Proposal Phase (as defined in the Eclipse Development Process) and is written to declare its intent and scope. We solicit additional participation and input from the community. Please login and add your feedback in the comments section.
Parent Project: 
Eclipse Technology
Background: 

The Language Server Protocol currently defined by the VSCode team at [1] is an effort to unify communication between editors (tools) and advanced language tooling.

[1] - https://github.com/Microsoft/language-server-protocol

 
Scope: 

This project aims at providing a reusable Java implementation of VSCode's language server protocol. It implements the types as well as the communication, including serialization to and deserialization from JSON.

Description: 

LSP4J is a Java implementation of VSCode's language server protocol intended to be consumed by tools and language servers implemented in Java.

Why Here?: 

The Eclipse Foundation is a trusted open source foundation and hosts a number of potential clients of this project, such as (Eclipse Platform, JDT, Xtext, JSDT, etc.)

Licenses: 
Eclipse Distribution License 1.0 (BSD)
Eclipse Public License 1.0
Legal Issues: 

No legal issues.

Project Scheduling: 

We intend to provide a first incubation release shortly after project creation.

Future Work: 

It is planned to keep up with the evolution of the language server protocol.

People
Project Leads: 
Miro Spönemann
Sven Efftinge
Committers: 
Anton Kosyakov
Jan Koehnlein
Dennis Huebner
Moritz Eysholdt
Evgen Vidolob
Miro Spoenemann
Sven Efftinge
Mentors: 
Mickael Istria
Interested Parties: 
Source Code
Initial Contribution: 

The initial contribution is currently hosted at https://github.com/TypeFox/ls-api.

Source Repository Type: 
GitHub
Source Repositories: 
https://github.com/TypeFox/ls-api

Comments Sign in to post comments

Submitted by mandersen on Thu, 2016-07-28 09:52

The proposal says "LSP4J is a Java implementation of VSCode's language server protocol i" but https://github.com/TypeFox/ls-api is using XTend.

Is the plan to make this pure java ?

 

And we've taken a quite simpler approach afaics with the java languager server that uses json schemas which we hope to be adopted by the spec eventually.

Would this project be interesting adopting that approach ?

Submitted by sefftinge on Tue, 2016-08-23 04:49

Hi Max,

yes to both.

See https://github.com/TypeFox/ls-api/issues/28 (although xtend generates java, so ls-api already is java)

Regarding the json. We are waiting fro MS to accept the according PR. But then we plan to generate the type defs from that.

Submitted by mistria on Tue, 2016-07-26 12:51

Red Hat is definitely interested in this project and would like to be listed as interested parties.

Submitted by sefftinge on Wed, 2016-07-27 07:39

Thank you Mickael! I added you.

Submitted by rchavesnk6 on Mon, 2016-07-25 15:53

Looking forward to seeing LSP4J as an Eclipse project. We are planning to adopt it in Cloudfier, and we hope Orion too will provide support for the Language Server Protocol as well.

Submitted by sefftinge on Wed, 2016-07-27 07:40

Good to know! I've heard rumors of Orion going to support it, too.

Submitted by mistria on Wed, 2016-07-27 09:19

It's much more than rumors: here is some experimental and encouraging progress: https://www.youtube.com/watch?v=A-jnqySRA50 . However, as it's not Java, I don't think Orion is directly interested in the LSP4J project. That said, I guess they'd be glad to share ideas/plans/work if you ask on their mailing-list.

Submitted by kthoms on Fri, 2016-07-22 10:07

itemis is highly interested to support this project