FHIR Model Utilities

Utilities for working with HAPI FHIR objects

A set of utilities to support rendering and serving FHIR specification resources.

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Features

• Provides version-agnostic 'WrappedResource' facades for: CodeSystem, ConceptMap, OperationDefinition, StructureDefinition and ValueSet types.
• Best-guess functionality to identify a suitable FHIR version for a provided file.
• Supports HAPI objects for FHIR versions DSTU2 and STU3
• Utilities for linking back to HL7 FHIR documentation at appropriate FHIR version
• Enums representing
  • FHIR Resource types
  • FHIR versions and releases

Currently used by:

FHIR Profile Renderer

FHIR Reference Server

FHIR Local Server

Release Notes

v1.2.1 (17/04/2018)

• support MessageDefinition resources
• support accessing bindings on associated extension(s) for StructureDefinition nodes
• support identifying unavailable CodeSystem on ValueSets
• only HTML-escape text sections
• upversion HAPI to 3.3.0

v1.2.0 (23/03/2018)

• make OperationDefinition parameter parts accessible through WrappedOperationDefinition
• add unexpected features checks for OperationDefinitions
• fixed bug where node removers wouldn't respect that a node appeared in the differential tree
• use NodePath consistently where a '.'-separated path is used. Explicitly mutable or immutable.

v1.1.0 (13/03/2018)

• Tree building improvements: support shallow cloning of FhirTree by reusing data objects on new tree of nodes; lazily create these trees and cache a template tree on each wrapped resource, to reduce work for each renderer
• support references to user-defined data types
• construct a minimal "skeleton" backup tree to permit backup node resolution before differential node creation
• improve backup node resolution and sanity checking
• code simplification/refactor (version number parsing, minimise code under HAPI package, unify datatype resolution, Preconditions.checkNotNull usage)
• improve UTF-8 character handling when loading files
• bug fixes: missing slash for HL7 metadatatypes links, handle trailing slash on resource list pages, support operation definition parameters without types
• improve some error logging
• use threadlocal event handler and logger
• reorganise package structure
• various minor improvements prompted by FindBugs

v1.0.2 (18/12/2017)

• Fixed 2 null pointers

v1.0.1 (09/11/2017)

• Updated maven artifactId to 'fhir-model-utils'

v1.0.0 (01/11/2017)

• Initial Release

Built using HAPI