HAPI FHIR - HL7 FHIR Core Artifacts

CI Status (master)

This is the java core object handling code, with utilities (including validator), for the FHIR specification. included in this repo:

• org.fhir.fhir.utilities: Shared code used by all the other projects - including the internationalization code
• org.fhir.fhir.r5: Object models and utilities for R5 candidate (will change regularly as new R5 candidates are released)
• org.fhir.fhir.r4b: Object models and utilities for R4B
• org.fhir.fhir.r4: Object models and utilities for R4
• org.fhir.fhir.dstu3: Object models and utilities for STU3
• org.fhir.fhir.dstu2: Object models and utilities for STU2
• org.fhir.fhir.dstu2016may: Object models and utilities for an early STU3 candidate still used by some implementers
• org.fhir.fhir.convertors: Code to convert between versions, and other version independence code - uses all the above projects
• org.fhir.fhir.validation: The FHIR Java validator (note: based on R5 internally, but validates all the above versions)
• org.fhir.fhir.validation.cli: Holder project for releasing the FHIR validator as as single fat jar (will be removed in the future)

This code is used in all HAPI servers and clients, and also is the HL7 maintained FHIR Validator. In addition, this is the core code for the HL7 maintained IG publisher and FHIR main build publisher. As such, this code is considered an authoritatively correct implementation of the core FHIR specification that it implements.

Building this Project

Prerequisites

This project uses Java (minumum version 11), Apache Maven, and Lombok to build. You can find detailed instructions on setting up this project in your IDE here.

Build Commands

To build and add artifacts to your local Maven repository:

mvn install

To skip unit tests:

mvn -Dmaven.test.skip install

Note: If you're on Windows and use PowerShell, The - needs to be escaped with a backtick (`)

mvn `-Dmaven.test.skip install

To clean and rebuild the terminology server caches:

clean

mvn clean -Dfhir.txcache.clean=true   

rebuild

mvn test -Dfhir.txcache.rebuild=true

The source contains cached terminology server responses for testing. If the expected responses have changed in any way, this cache should be cleaned and rebuilt with the above so that subsequent mvn test calls will have the most current responses cached.

To build only the validator_cli jar locally:

mvn clean package -Dmaven.test.skip=true --projects org.hl7.fhir.validation.cli --no-transfer-progress
cp org.hl7.fhir.validation.cli/target/org.hl7.fhir.validation.cli*-SNAPSHOT.jar ./validator_cli.jar

This will produce ./validator_cli.jar in the project root directory.

Releases

The built binary for the FHIR command-line validator is released through GitHub releases and can be downloaded directly here. For instructions on using this validator visit the FHIR Validator Confluence page.

All build artifacts are published on OSS Sonatype.

Current Versions

Project	Current Release	Latest SNAPSHOT
org.hl7.fhir.validation.cli
org.hl7.fhir.validation
org.hl7.fhir.dstu2
org.hl7.fhir.dstu2016may
org.hl7.fhir.dstu3
org.hl7.fhir.r4
org.hl7.fhir.r5

To use these artifacts in your project will need to add the proper dependency to your pom.xml file, or your build.gradle.kts file.

pom.xml

<repositories>
    <repository>
        <id>oss-snapshot</id>
        <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
    </repository>
    <repository>
        <id>oss-releases</id>
        <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
    </repository>
</repositories> 

build.gradle.kts

repositories {
    maven {
        url = uri("https://oss.sonatype.org/content/repositories/snapshots")
    }
    maven {
        url = uri("https://oss.sonatype.org/service/local/staging/deploy/maven2/")
    }
}

After adding the necessary repositories, you can include the libraries as follows:

org.hl7.fhir.validation.cli

Maven

<dependency>
    <groupId>ca.uhn.hapi.fhir</groupId>
    <artifactId>org.hl7.fhir.validation.cli</artifactId>
    <version>(latest version)</version>
</dependency>

Gradle

compile group: 'ca.uhn.hapi.fhir', name: 'org.hl7.fhir.validation.cli', version: '(latest version)'

org.hl7.fhir.dstu2

Maven

<dependency>
    <groupId>ca.uhn.hapi.fhir</groupId>
    <artifactId>hapi-fhir-structures-dstu2</artifactId>
    <version>(latest version)</version>
</dependency>

Gradle

compile group: 'ca.uhn.hapi.fhir', name: 'hapi-fhir-structures-dstu2', version: '(latest version)'

org.hl7.fhir.dstu3

Maven

<dependency>
    <groupId>ca.uhn.hapi.fhir</groupId>
    <artifactId>hapi-fhir-structures-dstu3</artifactId>
    <version>(latest version)</version>
</dependency>

Gradle

compile group: 'ca.uhn.hapi.fhir', name: 'hapi-fhir-structures-dstu3', version: '(latest version)'

org.hl7.fhir.r4

Maven

<dependency>
    <groupId>ca.uhn.hapi.fhir</groupId>
    <artifactId>hapi-fhir-structures-r4</artifactId>
    <version>(latest version)</version>
</dependency>

Gradle

compile group: 'ca.uhn.hapi.fhir', name: 'hapi-fhir-structures-r4', version: '(latest version)'

org.hl7.fhir.r5

Maven

<dependency>
    <groupId>ca.uhn.hapi.fhir</groupId>
    <artifactId>hapi-fhir-structures-r5</artifactId>
    <version>(latest version)</version>
</dependency>

Gradle

compile group: 'ca.uhn.hapi.fhir', name: 'hapi-fhir-structures-r5', version: '(latest version)'

Internationalization

This project implements internationalization for its user tools and utilities for several locales using a combination of GNU PO and Java Properties files.

Translation from the core library's original English locale to other supported locales is an ongoing process. The current level of coverage is calculated by the number of translated phrases, and can be viewed in the following figure:

CI/CD

All integration and delivery done on Azure pipelines. Azure project can be viewed here.

• Pull Request Pipeline is automatically run for every Pull Request to ensure that the project can be built via maven. [Azure Pipeline] [source]
• Master Branch Pipeline is automatically run whenever code is merged to the master branch and builds the SNAPSHOT binaries distributed to OSSRH [Azure Pipeline][source]
• Release Branch Pipeline is run manually whenever a release is ready to be made. It builds the release binaries, distributes them to artifact repositories and sends release notifications. [Azure Pipeline][source]

A brief overview of our publishing process is here.

For more detailed instructions on cutting a release, please read the wiki

Maintenance

Have you found an issue? Do you have a feature request? Great! Submit it here and we'll try to fix it as soon as possible.

This project is maintained by Grahame Grieve, James Agnew, David Otasek and Mark Iantorno on behalf of the FHIR community.