com.cerner.bunsen.avro.converters

Class DefinitionToAvroVisitor

java.lang.Object

com.cerner.bunsen.avro.converters.DefinitionToAvroVisitor

All Implemented Interfaces:

DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

public class DefinitionToAvroVisitor
extends Object
implements DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Constructor Summary

Constructors

Constructor and Description
DefinitionToAvroVisitor(FhirConversionSupport fhirSupport, String basePackage, Map<String,HapiConverter<org.apache.avro.Schema>> visitedConverters) Creates a visitor to construct Avro conversion objects.

Method Summary

Modifier and Type	Method and Description
int	getMaxDepth(String elementTypeUrl, String path) Returns the maximum depth to use for recursive structures of the given type.
HapiConverter<org.apache.avro.Schema>	visitChoice(String elementName, Map<String,HapiConverter<org.apache.avro.Schema>> choiceTypes) Visits a choice type.
HapiConverter<org.apache.avro.Schema>	visitComposite(String elementName, String elementPath, String baseType, String elementTypeUrl, List<StructureField<HapiConverter<org.apache.avro.Schema>>> children) Visits a composite type.
HapiConverter<org.apache.avro.Schema>	visitContained(String elementPath, String elementTypeUrl, Map<String,StructureField<HapiConverter<org.apache.avro.Schema>>> contained) Visits a container type.
HapiConverter<org.apache.avro.Schema>	visitLeafExtension(String elementName, String extensionUrl, HapiConverter<org.apache.avro.Schema> element) Visits a leaf extension, which contains some value.
HapiConverter<org.apache.avro.Schema>	visitMultiValued(String elementName, HapiConverter<org.apache.avro.Schema> arrayElement) Visits a multi-valued element.
HapiConverter<org.apache.avro.Schema>	visitParentExtension(String elementName, String extensionUrl, List<StructureField<HapiConverter<org.apache.avro.Schema>>> children) Visits a non-leaf extension.
HapiConverter<org.apache.avro.Schema>	visitPrimitive(String elementName, String primitiveType) Visits a primitive type.
HapiConverter<org.apache.avro.Schema>	visitReference(String elementName, List<String> referenceTypes, List<StructureField<HapiConverter<org.apache.avro.Schema>>> children) Visits a reference type.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefinitionToAvroVisitor

public DefinitionToAvroVisitor(FhirConversionSupport fhirSupport,
                               String basePackage,
                               Map<String,HapiConverter<org.apache.avro.Schema>> visitedConverters)

Creates a visitor to construct Avro conversion objects.

Parameters:

fhirSupport - support for FHIR conversions.

basePackage - the base package to be used for generated Avro structures.

visitedConverters - a mutable cache of generated converters that may be reused by types that contain them.

Method Detail

visitPrimitive

public HapiConverter<org.apache.avro.Schema> visitPrimitive(String elementName,
                                                            String primitiveType)

Description copied from interface: DefinitionVisitor

Visits a primitive type.

Specified by:

visitPrimitive in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

primitiveType - the FHIR type of the primitive.

Returns:

the visitor result.

visitContained

public HapiConverter<org.apache.avro.Schema> visitContained(String elementPath,
                                                            String elementTypeUrl,
                                                            Map<String,StructureField<HapiConverter<org.apache.avro.Schema>>> contained)

Description copied from interface: DefinitionVisitor

Visits a container type.

Specified by:

visitContained in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementPath - the FHIR path to the element.

elementTypeUrl - the type of the container type.

contained - the map of types to their contained elements.

Returns:

the visitor result.

visitComposite

public HapiConverter<org.apache.avro.Schema> visitComposite(String elementName,
                                                            String elementPath,
                                                            String baseType,
                                                            String elementTypeUrl,
                                                            List<StructureField<HapiConverter<org.apache.avro.Schema>>> children)

Description copied from interface: DefinitionVisitor

Visits a composite type.

Specified by:

visitComposite in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

elementPath - the FHIR path to the element.

baseType - the type of the composite type.

elementTypeUrl - the URL of the resource containing the element.

children - the composite type's children.

Returns:

the visitor result.

visitReference

public HapiConverter<org.apache.avro.Schema> visitReference(String elementName,
                                                            List<String> referenceTypes,
                                                            List<StructureField<HapiConverter<org.apache.avro.Schema>>> children)

Description copied from interface: DefinitionVisitor

Visits a reference type.

Specified by:

visitReference in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

referenceTypes - the types of resource that can be referenced

children - the child fields of the reference

Returns:

the visitor result.

visitParentExtension

public HapiConverter<org.apache.avro.Schema> visitParentExtension(String elementName,
                                                                  String extensionUrl,
                                                                  List<StructureField<HapiConverter<org.apache.avro.Schema>>> children)

Description copied from interface: DefinitionVisitor

Visits a non-leaf extension.

Specified by:

visitParentExtension in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

extensionUrl - the URL of the extension.

children - the children of the extension

Returns:

the visitor result.

visitLeafExtension

public HapiConverter<org.apache.avro.Schema> visitLeafExtension(String elementName,
                                                                String extensionUrl,
                                                                HapiConverter<org.apache.avro.Schema> element)

Description copied from interface: DefinitionVisitor

Visits a leaf extension, which contains some value.

Specified by:

visitLeafExtension in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

extensionUrl - the URL of the extension.

element - the children of the extension.

Returns:

the visitor result.

visitMultiValued

public HapiConverter<org.apache.avro.Schema> visitMultiValued(String elementName,
                                                              HapiConverter<org.apache.avro.Schema> arrayElement)

Description copied from interface: DefinitionVisitor

Visits a multi-valued element.

Specified by:

visitMultiValued in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

arrayElement - the visitor result for a single element of the array.

Returns:

the visitor result.

visitChoice

public HapiConverter<org.apache.avro.Schema> visitChoice(String elementName,
                                                         Map<String,HapiConverter<org.apache.avro.Schema>> choiceTypes)

Description copied from interface: DefinitionVisitor

Visits a choice type.

Specified by:

visitChoice in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementName - the element to visit.

choiceTypes - a map of the choice type with the returned children.

Returns:

the visitor result.

getMaxDepth

public int getMaxDepth(String elementTypeUrl,
                       String path)

Description copied from interface: DefinitionVisitor

Returns the maximum depth to use for recursive structures of the given type.

Specified by:

getMaxDepth in interface DefinitionVisitor<HapiConverter<org.apache.avro.Schema>>

Parameters:

elementTypeUrl - the element type that is recursive

path - the path to the element that is recursive

Returns:

the depth the visitor should recur to.