ca.uhn.fhir.util

Class FhirTerser

java.lang.Object

ca.uhn.fhir.util.FhirTerser

public class FhirTerser
extends Object

Constructor Summary

Constructors

Constructor and Description
FhirTerser(FhirContext theContext)

Method Summary

Modifier and Type	Method and Description
void	clear(IBaseResource theInput) Clear all content on a resource
IBase	cloneInto(IBase theSource, IBase theTarget, boolean theIgnoreMissingFields) Clones all values from a source object into the equivalent fields in a target object
Collection<IBaseResource>	getAllEmbeddedResources(IBaseResource theResource, boolean theRecurse) Returns all embedded resources that are found embedded within theResource.
<T extends IBase> List<T>	getAllPopulatedChildElementsOfType(IBaseResource theResource, Class<T> theType) Returns a list containing all child elements (including the resource itself) which are non-empty and are either of the exact type specified, or are a subclass of that type.
List<ResourceReferenceInfo>	getAllResourceReferences(IBaseResource theResource)
BaseRuntimeChildDefinition	getDefinition(Class<? extends IBaseResource> theResourceType, String thePath)
Object	getSingleValueOrNull(IBase theTarget, String thePath)
<T> T	getSingleValueOrNull(IBase theTarget, String thePath, Class<T> theWantedType)
List<Object>	getValues(IBaseResource theResource, String thePath) Returns values stored in an element identified by its path.
List<Object>	getValues(IBaseResource theResource, String thePath, boolean theCreate) Returns values stored in an element identified by its path.
List<Object>	getValues(IBaseResource theResource, String thePath, boolean theCreate, boolean theAddExtension) Returns values stored in an element identified by its path.
<T> List<T>	getValues(IBaseResource theResource, String thePath, Class<T> theWantedClass) Returns values stored in an element identified by its path.
<T> List<T>	getValues(IBaseResource theResource, String thePath, Class<T> theWantedClass, boolean theCreate) Returns values stored in an element identified by its path.
<T> List<T>	getValues(IBaseResource theResource, String thePath, Class<T> theWantedClass, boolean theCreate, boolean theAddExtension) Returns values stored in an element identified by its path.
boolean	isSourceInCompartmentForTarget(String theCompartmentName, IBaseResource theSource, IIdType theTarget) Returns true if theSource is in the compartment named theCompartmentName belonging to resource theTarget
void	visit(IBaseResource theResource, IModelVisitor theVisitor) Visit all elements in a given resource
void	visit(IBaseResource theResource, IModelVisitor2 theVisitor) Visit all elements in a given resource

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FhirTerser

public FhirTerser(FhirContext theContext)

Method Detail

cloneInto

public IBase cloneInto(IBase theSource,
                       IBase theTarget,
                       boolean theIgnoreMissingFields)

Clones all values from a source object into the equivalent fields in a target object

Parameters:

theSource - The source object (must not be null)

theTarget - The target object to copy values into (must not be null)

theIgnoreMissingFields - The ignore fields in the target which do not exist (if false, an exception will be thrown if the target is unable to accept a value from the source)

Returns:

Returns the target (which will be the same object that was passed into theTarget) for easy chaining

getAllPopulatedChildElementsOfType

public <T extends IBase> List<T> getAllPopulatedChildElementsOfType(IBaseResource theResource,
                                                                    Class<T> theType)

Returns a list containing all child elements (including the resource itself) which are non-empty and are either of the exact type specified, or are a subclass of that type.

For example, specifying a type of StringDt would return all non-empty string instances within the message. Specifying a type of IResource would return the resource itself, as well as any contained resources.

Note on scope: This method will descend into any contained resources (IResource.getContained()) as well, but will not descend into linked resources (e.g. BaseResourceReferenceDt.getResource()) or embedded resources (e.g. Bundle.entry.resource)

Parameters:

theResource - The resource instance to search. Must not be null.

theType - The type to search for. Must not be null.

Returns:

Returns a list of all matching elements

getAllResourceReferences

public List<ResourceReferenceInfo> getAllResourceReferences(IBaseResource theResource)

getDefinition

public BaseRuntimeChildDefinition getDefinition(Class<? extends IBaseResource> theResourceType,
                                                String thePath)

getSingleValueOrNull

public Object getSingleValueOrNull(IBase theTarget,
                                   String thePath)

getSingleValueOrNull

public <T> T getSingleValueOrNull(IBase theTarget,
                                  String thePath,
                                  Class<T> theWantedType)

getValues

public List<Object> getValues(IBaseResource theResource,
                              String thePath)

Returns values stored in an element identified by its path. The list of values is of type Object.

Parameters:

theResource - The resource instance to be accessed. Must not be null.

thePath - The path for the element to be accessed.

Returns:

A list of values of type Object.

getValues

public List<Object> getValues(IBaseResource theResource,
                              String thePath,
                              boolean theCreate)

Returns values stored in an element identified by its path. The list of values is of type Object.

Parameters:

theResource - The resource instance to be accessed. Must not be null.

thePath - The path for the element to be accessed.

theCreate - When set to true, the terser will create a null-valued element where none exists.

Returns:

A list of values of type Object.

getValues

public List<Object> getValues(IBaseResource theResource,
                              String thePath,
                              boolean theCreate,
                              boolean theAddExtension)

Returns values stored in an element identified by its path. The list of values is of type Object.

Parameters:

theResource - The resource instance to be accessed. Must not be null.

thePath - The path for the element to be accessed.

theCreate - When set to true, the terser will create a null-valued element where none exists.

theAddExtension - When set to true, the terser will add a null-valued extension where one or more such extensions already exist.

Returns:

A list of values of type Object.

getValues

public <T> List<T> getValues(IBaseResource theResource,
                             String thePath,
                             Class<T> theWantedClass)

Returns values stored in an element identified by its path. The list of values is of type theWantedClass.

Type Parameters:

T - Type declared by theWantedClass

Parameters:

theResource - The resource instance to be accessed. Must not be null.

thePath - The path for the element to be accessed.

theWantedClass - The desired class to be returned in a list.

Returns:

A list of values of type theWantedClass.

getValues

public <T> List<T> getValues(IBaseResource theResource,
                             String thePath,
                             Class<T> theWantedClass,
                             boolean theCreate)

Returns values stored in an element identified by its path. The list of values is of type theWantedClass.

Type Parameters:

T - Type declared by theWantedClass

Parameters:

theResource - The resource instance to be accessed. Must not be null.

thePath - The path for the element to be accessed.

theWantedClass - The desired class to be returned in a list.

theCreate - When set to true, the terser will create a null-valued element where none exists.

Returns:

A list of values of type theWantedClass.

getValues

public <T> List<T> getValues(IBaseResource theResource,
                             String thePath,
                             Class<T> theWantedClass,
                             boolean theCreate,
                             boolean theAddExtension)

Returns values stored in an element identified by its path. The list of values is of type theWantedClass.

Type Parameters:

T - Type declared by theWantedClass

Parameters:

theResource - The resource instance to be accessed. Must not be null.

thePath - The path for the element to be accessed.

theWantedClass - The desired class to be returned in a list.

theCreate - When set to true, the terser will create a null-valued element where none exists.

theAddExtension - When set to true, the terser will add a null-valued extension where one or more such extensions already exist.

Returns:

A list of values of type theWantedClass.

isSourceInCompartmentForTarget

public boolean isSourceInCompartmentForTarget(String theCompartmentName,
                                              IBaseResource theSource,
                                              IIdType theTarget)

Returns true if theSource is in the compartment named theCompartmentName belonging to resource theTarget

Parameters:

theCompartmentName - The name of the compartment

theSource - The potential member of the compartment

theTarget - The owner of the compartment. Note that both the resource type and ID must be filled in on this IIdType or the method will throw an IllegalArgumentException

Returns:

true if theSource is in the compartment

Throws:

IllegalArgumentException - If theTarget does not contain both a resource type and ID

visit

public void visit(IBaseResource theResource,
                  IModelVisitor theVisitor)

Visit all elements in a given resource

Note on scope: This method will descend into any contained resources (IResource.getContained()) as well, but will not descend into linked resources (e.g. BaseResourceReferenceDt.getResource()) or embedded resources (e.g. Bundle.entry.resource)

Parameters:

theResource - The resource to visit

theVisitor - The visitor

visit

public void visit(IBaseResource theResource,
                  IModelVisitor2 theVisitor)

Visit all elements in a given resource

THIS ALTERNATE METHOD IS STILL EXPERIMENTAL! USE WITH CAUTION

Note on scope: This method will descend into any contained resources (IResource.getContained()) as well, but will not descend into linked resources (e.g. BaseResourceReferenceDt.getResource()) or embedded resources (e.g. Bundle.entry.resource)

Parameters:

theResource - The resource to visit

theVisitor - The visitor

getAllEmbeddedResources

public Collection<IBaseResource> getAllEmbeddedResources(IBaseResource theResource,
                                                         boolean theRecurse)

Returns all embedded resources that are found embedded within theResource. An embedded resource is a resource that can be found as a direct child within a resource, as opposed to being referenced by the resource.

Examples include resources found within Bundle.entry.resource and Parameters.parameter.resource, as well as contained resources found within Resource.contained

Parameters:

theRecurse - Should embedded resources be recursively scanned for further embedded resources

Returns:

A collection containing the embedded resources. Order is arbitrary.

clear

public void clear(IBaseResource theInput)

Clear all content on a resource