Using the FHIR Validator to transform content
Running the validator
To use the validator, download the jar from http://build.fhir.org/downloads.html. Specifically, download the official FHIR validator at http://build.fhir.org/validator.zip Note that you always use the current validator from the build, irrespective of what transforms you are running.. You need a current version of java to run the validator:
java -jar org.hl7.fhir.validator.jar -transform [params]
The params control how the transfomration occurs, and are documented here.
In general, in order to perform the transform, you need to specify:
- what to transform
- the map to use to transform it
- where to put the tranform
+ you need to tell the engine where to find all the relevant logical models, mapping libraries, etc.
Choosing what to transform
There must be at just one source param, which is not a named parameter. All other parameters are 'named parameters' - e.g. -name value. Any parameter preceded by a recognised name is interpreted as a source parameter
The source parameter can contain either:
- a URL that returns the resource to validate (authentication is not supported)
- a filename (relative to the current directory, or absolute)
- a directory that contains resources to validate (all files are validated if they are recognised as resources)
- a pattern: a directory followed by a filename with an embedded asterisk. E.g. foo*-examples.xml or someresource.*, etc
In the case of a directory or a pattern, it is an error if there is more than one matching file.
java -jar org.hl7.fhir.validator.jar -transform /tmp/resource.json
java -jar org.hl7.fhir.validator.jar -transform c:\temp\patient.xml
Choosing what to produce
Specifying the map to start with
choosing where to save the log
The transform engine will need to load your mapping libraries, logical models, and the relevant FHIR version.