Package ca.uhn.fhir.context.support

Interface IValidationSupport

All Known Implementing Classes:

DefaultProfileValidationSupport

public interface IValidationSupport

This interface is a version-independent representation of the various functions that can be provided by validation and terminology services.

This interface is invoked directly by internal parts of the HAPI FHIR API, including the Validator and the FHIRPath evaluator. It is used to supply artifacts required for validation (e.g. StructureDefinition resources, ValueSet resources, etc.) and also to provide terminology functions such as code validation, ValueSet expansion, etc.

Implementations are not required to implement all of the functions in this interface; in fact it is expected that most won't. Any methods which are not implemented may simply return null and calling code is expected to be able to handle this. Generally, a series of implementations of this interface will be joined together using the ValidationSupportChain class.

See Validation Support Modules for information on how to assemble and configure implementations of this interface. See also the org.hl7.fhir.common.hapi.validation.support package summary in the hapi-fhir-validation module for many implementations of this interface.

Since:

5.0.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	IValidationSupport.BaseConceptProperty
static class	IValidationSupport.CodeValidationResult
static class	IValidationSupport.CodingConceptProperty
static class	IValidationSupport.ConceptDesignation
static class	IValidationSupport.IssueSeverity
static class	IValidationSupport.LookupCodeResult
static class	IValidationSupport.StringConceptProperty
static class	IValidationSupport.ValueSetExpansionOutcome

Field Summary

Fields

Modifier and Type	Field	Description
static String	URL_PREFIX_VALUE_SET

Method Summary

Modifier and Type	Method	Description
default IValidationSupport.ValueSetExpansionOutcome	expandValueSet(ValidationSupportContext theValidationSupportContext, ValueSetExpansionOptions theExpansionOptions, IBaseResource theValueSetToExpand)	Expands the given portion of a ValueSet
default List<IBaseResource>	fetchAllConformanceResources()	Load and return all conformance resources associated with this validation support module.
default <T extends IBaseResource> List<T>	fetchAllStructureDefinitions()	Load and return all possible structure definitions
default IBaseResource	fetchCodeSystem(String theSystem)	Fetch a code system by ID
default <T extends IBaseResource> T	fetchResource(Class<T> theClass, String theUri)	Loads a resource needed by the validation (a StructureDefinition, or a ValueSet)
default IBaseResource	fetchStructureDefinition(String theUrl)
default IBaseResource	fetchValueSet(String theValueSetUrl)	Fetch the given ValueSet by URL
default IBaseResource	generateSnapshot(ValidationSupportContext theValidationSupportContext, IBaseResource theInput, String theUrl, String theWebUrl, String theProfileName)	Generate a snapshot from the given differential profile.
FhirContext	getFhirContext()	Returns the FHIR Context associated with this module
default void	invalidateCaches()	This method clears any temporary caches within the validation support.
default boolean	isCodeSystemSupported(ValidationSupportContext theValidationSupportContext, String theSystem)	Returns true if codes in the given code system can be expanded or validated
default boolean	isValueSetSupported(ValidationSupportContext theValidationSupportContext, String theValueSetUrl)	Returns true if the given valueset can be validated by the given validation support module
default IValidationSupport.LookupCodeResult	lookupCode(ValidationSupportContext theValidationSupportContext, String theSystem, String theCode)	Look up a code using the system and code value
default IValidationSupport.CodeValidationResult	validateCode(ValidationSupportContext theValidationSupportContext, ConceptValidationOptions theOptions, String theCodeSystem, String theCode, String theDisplay, String theValueSetUrl)	Validates that the given code exists and if possible returns a display name.
default IValidationSupport.CodeValidationResult	validateCodeInValueSet(ValidationSupportContext theValidationSupportContext, ConceptValidationOptions theOptions, String theCodeSystem, String theCode, String theDisplay, IBaseResource theValueSet)	Validates that the given code exists and if possible returns a display name.

Field Detail

URL_PREFIX_VALUE_SET

static final String URL_PREFIX_VALUE_SET

See Also:

Constant Field Values

Method Detail

expandValueSet

default IValidationSupport.ValueSetExpansionOutcome expandValueSet(ValidationSupportContext theValidationSupportContext,
                                                                   @Nullable
                                                                   ValueSetExpansionOptions theExpansionOptions,
                                                                   @Nonnull
                                                                   IBaseResource theValueSetToExpand)

Expands the given portion of a ValueSet

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

theExpansionOptions - If provided (may be null), contains options controlling the expansion

theValueSetToExpand - The valueset that should be expanded

Returns:

The expansion, or null

fetchAllConformanceResources

default List<IBaseResource> fetchAllConformanceResources()

Load and return all conformance resources associated with this validation support module. This method may return null if it doesn't make sense for a given module.

fetchAllStructureDefinitions

default <T extends IBaseResource> List<T> fetchAllStructureDefinitions()

Load and return all possible structure definitions

fetchCodeSystem

default IBaseResource fetchCodeSystem(String theSystem)

Fetch a code system by ID

Parameters:

theSystem - The code system

Returns:

The valueset (must not be null, but can be an empty ValueSet)

fetchResource

default <T extends IBaseResource> T fetchResource(@Nullable
                                                  Class<T> theClass,
                                                  String theUri)

Loads a resource needed by the validation (a StructureDefinition, or a ValueSet)

Note: Since 5.3.0, theClass can be null

Parameters:

theClass - The type of the resource to load, or null to return any resource with the given canonical URI

theUri - The resource URI

Returns:

Returns the resource, or null if no resource with the given URI can be found

fetchStructureDefinition

default IBaseResource fetchStructureDefinition(String theUrl)

isCodeSystemSupported

default boolean isCodeSystemSupported(ValidationSupportContext theValidationSupportContext,
                                      String theSystem)

Returns true if codes in the given code system can be expanded or validated

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

theSystem - The URI for the code system, e.g. "http://loinc.org"

Returns:

Returns true if codes in the given code system can be validated

fetchValueSet

default IBaseResource fetchValueSet(String theValueSetUrl)

Fetch the given ValueSet by URL

validateCode

default IValidationSupport.CodeValidationResult validateCode(ValidationSupportContext theValidationSupportContext,
                                                             ConceptValidationOptions theOptions,
                                                             String theCodeSystem,
                                                             String theCode,
                                                             String theDisplay,
                                                             String theValueSetUrl)

Validates that the given code exists and if possible returns a display name. This method is called to check codes which are found in "example" binding fields (e.g. Observation.code in the default profile.

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

theOptions - Provides options controlling the validation

theCodeSystem - The code system, e.g. "http://loinc.org"

theCode - The code, e.g. "1234-5"

theDisplay - The display name, if it should also be validated

Returns:

Returns a validation result object

validateCodeInValueSet

default IValidationSupport.CodeValidationResult validateCodeInValueSet(ValidationSupportContext theValidationSupportContext,
                                                                       ConceptValidationOptions theOptions,
                                                                       String theCodeSystem,
                                                                       String theCode,
                                                                       String theDisplay,
                                                                       @Nonnull
                                                                       IBaseResource theValueSet)

Validates that the given code exists and if possible returns a display name. This method is called to check codes which are found in "example" binding fields (e.g. Observation.code in the default profile.

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

theCodeSystem - The code system, e.g. "http://loinc.org"

theCode - The code, e.g. "1234-5"

theDisplay - The display name, if it should also be validated

theValueSet - The ValueSet to validate against. Must not be null, and must be a ValueSet resource.

Returns:

Returns a validation result object, or null if this validation support module can not handle this kind of request

lookupCode

default IValidationSupport.LookupCodeResult lookupCode(ValidationSupportContext theValidationSupportContext,
                                                       String theSystem,
                                                       String theCode)

Look up a code using the system and code value

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

theSystem - The CodeSystem URL

theCode - The code

isValueSetSupported

default boolean isValueSetSupported(ValidationSupportContext theValidationSupportContext,
                                    String theValueSetUrl)

Returns true if the given valueset can be validated by the given validation support module

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

theValueSetUrl - The ValueSet canonical URL

generateSnapshot

default IBaseResource generateSnapshot(ValidationSupportContext theValidationSupportContext,
                                       IBaseResource theInput,
                                       String theUrl,
                                       String theWebUrl,
                                       String theProfileName)

Generate a snapshot from the given differential profile.

Parameters:

theValidationSupportContext - The validation support module will be passed in to this method. This is convenient in cases where the operation needs to make calls to other method in the support chain, so that they can be passed through the entire chain. Implementations of this interface may always safely ignore this parameter.

Returns:

Returns null if this module does not know how to handle this request

getFhirContext

FhirContext getFhirContext()

Returns the FHIR Context associated with this module

invalidateCaches

default void invalidateCaches()

This method clears any temporary caches within the validation support. It is mainly intended for unit tests, but could be used in non-test scenarios as well.