Welcome

This is the home page for the HAPI project. HAPI (HL7 application programming interface; pronounced "happy") is an open-source, object-oriented HL7 2.x parser for Java. HL7 ( http://hl7.org ) is a messaging specification for healthcare information systems. This project is not affiliated with the HL7 organization; we are just writing some software that conforms to their specification. The project was initiated by University Health Network (a large multi-site teaching hospital in Toronto, Canada).

New Developments! Jan 22, 2012

The new year brings three new developments to HAPI!

New Beta Release!

First, a new beta release of HAPI has bee posted to the download pages, as well as to the Maven central repo. HAPI 2.0-beta1 brings with it a number of exciting new features, and a number of bug fixes, which you can read about in the Changelog. In particular, a huge refactoring of the .app package (containing ConnectionHub, SimpleServer, etc.) to overhaul the thread management was committed by Christian Ohr.

This release contains a number of contributions from all over the world. Thanks to everyone who got involved!

Please be aware that this is still a beta release, and hasn't yet been thoroughly tested. In particular, several unit tests are still not passing.

Download it here

New TestPanel!

Secondly, hUnit and the HAPI TestPanel have been combined, to make a fantastic new HL7 testing tool, "TestPanel 2.0". The new panel is a full featured testing and editing suite with support for all kinds of useful things including SSL, MLLP packet capture, validation, conformance profiles, and more.

Learn More

Message Colouriser!

Last, and probably least interesting, a new online tool has been added to the site which can be used to colourise ER7 encoded messages. This is mainly useful to people who want to embed HL7 messages or snippet in documentation, emails, web pages, etc. and have them look readable.

Check it out

- James Agnew

HAPI 10th Birthday! October 30, 2011

Birthday Cake

On October 30 2001. Bryan Tripp and a team at University Health Network registered the HAPI project with Sourceforge, and a new project was born. On November 15 2001 HAPI 0.1 was released, and 10 releases later HAPI is probably the most widely used HL7 v2 library there is.

A few stats:

HAPI keeps growing

Over the last five years, the number of visitors to the HAPI website has doubled, and it continues to grow. The graph below shows the number of unique visitors to our online documentation each month between 2006 and 2011. 5 years of growth

HAPI is used all over the world

Here are the top 100 cities this year in terms of visits to our online help. 5 years of growth

HAPI is used by all types of organizations

Here are the responses from the 2011 community survey, to date.

Describe your Organization of Company Percentage of responses
None / not applicable 1.11%
University / college / other school 12.22%
Government Department, Agency, etc 6.67%
Public Hospital, Clinic, or other health provider 12.22%
Private Hospital, Clinic, or other health provider 8.89%
Insurer, HMO, etc. 0
Small software development company (under 20 developers) 23.33%
Medium software development company (21-100 developers) 15.56%
Large software development company (101+ developers) 16.67%
Other 5.56%

HAPI is widely used and widely deployed

This is just a sample of the companies, hospitals, governments, and educational facilities who have let us know they are using HAPI over the years. Please contact us if we can add (or remove) your company from this list! Who uses HAPI