Package org.hl7.fhir.r4.fhirpath
Class FHIRPathEngine
java.lang.Object
org.hl7.fhir.r4.fhirpath.FHIRPathEngine
- Author:
- Grahame Grieve
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Nested Class Summary
Modifier and TypeClassDescriptionstatic class
static interface
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Constructor Summary
ConstructorDescriptionFHIRPathEngine
(IWorkerContext worker) FHIRPathEngine
(IWorkerContext worker, ProfileUtilities utilities) -
Method Summary
Modifier and TypeMethodDescriptionstatic String
bytesToHex
(byte[] bytes) check
(Object appContext, String resourceType, String context, ExpressionNode expr) check that paths referred to in the ExpressionNode are valid xPathStartsWithValueRef is a hack work around for the fact that FHIR Path sometimes needs a different starting point than the xpath returns a list of the possible types that might be returned by executing the ExpressionNode against a particular contextcheck
(Object appContext, StructureDefinition sd, String context, ExpressionNode expr) check
(Object appContext, StructureDefinition sd, ExpressionNode expr) boolean
convertToBoolean
(List<Base> items) worker routine for converting a set of objects to a boolean representation (for invariants)convertToString
(List<Base> items) worker routine for converting a set of objects to a string representationconvertToString
(Base item) evaluate
(Object appContext, Base focusResource, Base rootResource, Base base, ExpressionNode expressionNode) evaluate a path and return the matching elementsevaluate a path and return the matching elementsevaluate
(Object appContext, Resource focusResource, Resource rootResource, Base base, ExpressionNode ExpressionNode) evaluate a path and return the matching elementsevaluate a path and return the matching elementsevaluate
(Base base, ExpressionNode ExpressionNode) evaluate a path and return the matching elementsevaluateDefinition
(ExpressionNode expr, StructureDefinition profile, FHIRPathUtilityClasses.TypedElementDefinition element, StructureDefinition source, boolean dontWalkIntoReferences) given an element definition in a profile, what element contains the differentiating fixed for the element, given the differentiating expresssion.boolean
evaluateToBoolean
(Object appInfo, Base focusResource, Base rootResource, Base base, ExpressionNode node) evaluate a path and return true or false (e.g.boolean
evaluateToBoolean
(Object appInfo, Resource focusResource, Resource rootResource, Base base, ExpressionNode node) evaluate a path and return true or false (e.g.boolean
evaluateToBoolean
(Resource focusResource, Resource rootResource, Base base, String path) evaluate a path and return true or false (e.g.boolean
evaluateToBoolean
(Resource focusResource, Resource rootResource, Base base, ExpressionNode node) evaluate a path and return true or false (e.g.evaluateToString
(Object appInfo, Base focusResource, Base rootResource, Base base, ExpressionNode node) evaluateToString
(Base base, String path) evaluate a path and a string containing the outcome (for display)forLog()
protected void
getChildrenByName
(Base item, String name, List<Base> result) Given an item, return all the children that conform to the pattern described in name Possible patterns: - a simple name (which may be the base of a name with [] e.g.org.hl7.fhir.utilities.validation.ValidationOptions
boolean
hasLog()
static byte[]
boolean
boolean
boolean
boolean
boolean
boolean
Parse a path for later use using executeParse a path that is part of some other syntaxparsePartial
(String path, int i) Parse a path for later use using executevoid
setAllowPolymorphicNames
(boolean allowPolymorphicNames) void
setDoImplicitStringConversion
(boolean doImplicitStringConversion) void
setDoNotEnforceAsCaseSensitive
(boolean doNotEnforceAsCaseSensitive) void
setDoNotEnforceAsSingletonRule
(boolean doNotEnforceAsSingletonRule) void
setHostServices
(FHIRPathEngine.IEvaluationContext constantResolver) void
setLegacyMode
(boolean legacyMode) void
setLiquidMode
(boolean liquidMode) void
setLocation
(String location) takeLog()
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Constructor Details
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FHIRPathEngine
- Parameters:
worker
- - used when validating paths (@check), and used doing value set membership when executing tests (once that's defined)
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FHIRPathEngine
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Method Details
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getHostServices
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setHostServices
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getLocation
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setLocation
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getChildrenByName
protected void getChildrenByName(Base item, String name, List<Base> result) throws org.hl7.fhir.exceptions.FHIRException Given an item, return all the children that conform to the pattern described in name Possible patterns: - a simple name (which may be the base of a name with [] e.g. value[x]) - a name with a type replacement e.g. valueCodeableConcept - * which means all children - ** which means all descendants- Parameters:
item
-name
-result
-- Throws:
org.hl7.fhir.exceptions.FHIRException
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isLegacyMode
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setLegacyMode
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isDoImplicitStringConversion
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setDoImplicitStringConversion
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isDoNotEnforceAsSingletonRule
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setDoNotEnforceAsSingletonRule
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isDoNotEnforceAsCaseSensitive
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setDoNotEnforceAsCaseSensitive
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parse
Parse a path for later use using execute- Parameters:
path
-- Returns:
- Throws:
org.hl7.fhir.exceptions.PathEngineException
Exception
FHIRLexer.FHIRLexerException
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parse
- Throws:
FHIRLexer.FHIRLexerException
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parsePartial
public FHIRPathEngine.ExpressionNodeWithOffset parsePartial(String path, int i) throws FHIRLexer.FHIRLexerException Parse a path for later use using execute- Parameters:
path
-- Returns:
- Throws:
org.hl7.fhir.exceptions.PathEngineException
Exception
FHIRLexer.FHIRLexerException
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parse
Parse a path that is part of some other syntax- Returns:
- Throws:
org.hl7.fhir.exceptions.PathEngineException
Exception
FHIRLexer.FHIRLexerException
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check
public TypeDetails check(Object appContext, String resourceType, String context, ExpressionNode expr) throws FHIRLexer.FHIRLexerException, org.hl7.fhir.exceptions.PathEngineException, org.hl7.fhir.exceptions.DefinitionException check that paths referred to in the ExpressionNode are valid xPathStartsWithValueRef is a hack work around for the fact that FHIR Path sometimes needs a different starting point than the xpath returns a list of the possible types that might be returned by executing the ExpressionNode against a particular context- Parameters:
context
- - the logical type against which this path is applied- Throws:
org.hl7.fhir.exceptions.DefinitionException
org.hl7.fhir.exceptions.PathEngineException
FHIRLexer.FHIRLexerException
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check
public TypeDetails check(Object appContext, StructureDefinition sd, String context, ExpressionNode expr) throws FHIRLexer.FHIRLexerException, org.hl7.fhir.exceptions.PathEngineException, org.hl7.fhir.exceptions.DefinitionException - Throws:
FHIRLexer.FHIRLexerException
org.hl7.fhir.exceptions.PathEngineException
org.hl7.fhir.exceptions.DefinitionException
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check
public TypeDetails check(Object appContext, StructureDefinition sd, ExpressionNode expr) throws FHIRLexer.FHIRLexerException, org.hl7.fhir.exceptions.PathEngineException, org.hl7.fhir.exceptions.DefinitionException - Throws:
FHIRLexer.FHIRLexerException
org.hl7.fhir.exceptions.PathEngineException
org.hl7.fhir.exceptions.DefinitionException
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check
public TypeDetails check(Object appContext, String resourceType, String context, String expr) throws FHIRLexer.FHIRLexerException, org.hl7.fhir.exceptions.PathEngineException, org.hl7.fhir.exceptions.DefinitionException - Throws:
FHIRLexer.FHIRLexerException
org.hl7.fhir.exceptions.PathEngineException
org.hl7.fhir.exceptions.DefinitionException
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evaluate
public List<Base> evaluate(Base base, ExpressionNode ExpressionNode) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return the matching elements- Parameters:
base
- - the object against which the path is being evaluatedExpressionNode
- - the parsed ExpressionNode statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluate
evaluate a path and return the matching elements- Parameters:
base
- - the object against which the path is being evaluatedpath
- - the FHIR Path statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluate
public List<Base> evaluate(Object appContext, Resource focusResource, Resource rootResource, Base base, ExpressionNode ExpressionNode) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return the matching elements- Parameters:
base
- - the object against which the path is being evaluatedExpressionNode
- - the parsed ExpressionNode statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluate
public List<Base> evaluate(Object appContext, Base focusResource, Base rootResource, Base base, ExpressionNode expressionNode) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return the matching elements- Parameters:
base
- - the object against which the path is being evaluatedexpressionNode
- - the parsed ExpressionNode statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluate
public List<Base> evaluate(Object appContext, Resource focusResource, Resource rootResource, Base base, String path) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return the matching elements- Parameters:
base
- - the object against which the path is being evaluatedpath
- - the FHIR Path statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluateToBoolean
public boolean evaluateToBoolean(Resource focusResource, Resource rootResource, Base base, String path) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return true or false (e.g. for an invariant)- Parameters:
base
- - the object against which the path is being evaluatedpath
- - the FHIR Path statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluateToBoolean
public boolean evaluateToBoolean(Resource focusResource, Resource rootResource, Base base, ExpressionNode node) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return true or false (e.g. for an invariant)- Parameters:
base
- - the object against which the path is being evaluated- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluateToBoolean
public boolean evaluateToBoolean(Object appInfo, Resource focusResource, Resource rootResource, Base base, ExpressionNode node) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return true or false (e.g. for an invariant)- Parameters:
appInfo
- - application contextbase
- - the object against which the path is being evaluated- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluateToBoolean
public boolean evaluateToBoolean(Object appInfo, Base focusResource, Base rootResource, Base base, ExpressionNode node) throws org.hl7.fhir.exceptions.FHIRException evaluate a path and return true or false (e.g. for an invariant)- Parameters:
base
- - the object against which the path is being evaluated- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluateToString
evaluate a path and a string containing the outcome (for display)- Parameters:
base
- - the object against which the path is being evaluatedpath
- - the FHIR Path statement to use- Returns:
- Throws:
org.hl7.fhir.exceptions.FHIRException
- @
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evaluateToString
public String evaluateToString(Object appInfo, Base focusResource, Base rootResource, Base base, ExpressionNode node) throws org.hl7.fhir.exceptions.FHIRException - Throws:
org.hl7.fhir.exceptions.FHIRException
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convertToString
worker routine for converting a set of objects to a string representation- Parameters:
items
- - result from @evaluate- Returns:
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convertToString
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convertToBoolean
worker routine for converting a set of objects to a boolean representation (for invariants)- Parameters:
items
- - result from @evaluate- Returns:
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forLog
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bytesToHex
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hexStringToByteArray
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parseQuantityString
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hasLog
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takeLog
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evaluateDefinition
public FHIRPathUtilityClasses.TypedElementDefinition evaluateDefinition(ExpressionNode expr, StructureDefinition profile, FHIRPathUtilityClasses.TypedElementDefinition element, StructureDefinition source, boolean dontWalkIntoReferences) throws org.hl7.fhir.exceptions.DefinitionException given an element definition in a profile, what element contains the differentiating fixed for the element, given the differentiating expresssion. The expression is only allowed to use a subset of FHIRPath- Parameters:
profile
-element
-- Returns:
- Throws:
org.hl7.fhir.exceptions.PathEngineException
org.hl7.fhir.exceptions.DefinitionException
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getTerminologyServiceOptions
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getWorker
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isAllowPolymorphicNames
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setAllowPolymorphicNames
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isLiquidMode
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setLiquidMode
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