com.cerner.bunsen.avro

Class AvroConverter

java.lang.Object

com.cerner.bunsen.avro.AvroConverter

public class AvroConverter
extends Object

Converter to change HAPI objects into Avro structures and vice versa.

Method Summary

Modifier and Type	Method and Description
org.hl7.fhir.instance.model.api.IBaseResource	avroToResource(org.apache.avro.generic.IndexedRecord record) Converts a given Avro IndexedRecord to a FHIR resource.
static AvroConverter	forResource(ca.uhn.fhir.context.FhirContext context, String resourceTypeUrl) Returns an Avro converter for the given resource type.
static AvroConverter	forResource(ca.uhn.fhir.context.FhirContext context, String resourceTypeUrl, List<String> containedResourceTypeUrls) Returns an Avro converter for the given resource type.
static List<org.apache.avro.Schema>	generateSchemas(ca.uhn.fhir.context.FhirContext context, Map<String,List<String>> resourceTypeUrls) Returns a list of Avro schemas to support the given FHIR resource types.
String	getResourceType() Returns the FHIR type of the resource being converted.
org.apache.avro.Schema	getSchema() Returns the Avro schema equivalent for the FHIR resource.
org.apache.avro.generic.IndexedRecord	resourceToAvro(org.hl7.fhir.instance.model.api.IBaseResource resource) Converts a given FHIR resource to an Avro IndexedRecord.

Methods inherited from class java.lang.Object

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

Method Detail

generateSchemas

public static List<org.apache.avro.Schema> generateSchemas(ca.uhn.fhir.context.FhirContext context,
                                                           Map<String,List<String>> resourceTypeUrls)

Returns a list of Avro schemas to support the given FHIR resource types.

Parameters:

context - the FHIR context

resourceTypeUrls - the URLs of the resource types and any resources URLs contained to them

Returns:

a list of Avro schemas

forResource

public static AvroConverter forResource(ca.uhn.fhir.context.FhirContext context,
                                        String resourceTypeUrl)

Returns an Avro converter for the given resource type. The resource type can either be a relative URL for a base resource (e.g., "Condition" or "Observation"), or a URL identifying the structure definition for a given profile, such as "http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient".

Parameters:

context - the FHIR context

resourceTypeUrl - the URL of the resource type

Returns:

an Avro converter instance.

forResource

public static AvroConverter forResource(ca.uhn.fhir.context.FhirContext context,
                                        String resourceTypeUrl,
                                        List<String> containedResourceTypeUrls)

Returns an Avro converter for the given resource type. The resource type can either be a relative URL for a base resource (e.g. "Condition" or "Observation"), or a URL identifying the structure definition for a given profile, such as "http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient".

Resources that would be contained must be statically declared through this method via similar URLs.

Parameters:

context - the FHIR context

resourceTypeUrl - the URL of the resource type

containedResourceTypeUrls - the list of URLs of contained resource types

Returns:

an Avro converter instance.

resourceToAvro

public org.apache.avro.generic.IndexedRecord resourceToAvro(org.hl7.fhir.instance.model.api.IBaseResource resource)

Converts a given FHIR resource to an Avro IndexedRecord.

Parameters:

resource - the FHIR resource

Returns:

the record.

avroToResource

public org.hl7.fhir.instance.model.api.IBaseResource avroToResource(org.apache.avro.generic.IndexedRecord record)

Converts a given Avro IndexedRecord to a FHIR resource.

Parameters:

record - the record

Returns:

the FHIR resource.

getSchema

public org.apache.avro.Schema getSchema()

Returns the Avro schema equivalent for the FHIR resource.

Returns:

the Avro schema

getResourceType

public String getResourceType()

Returns the FHIR type of the resource being converted.

Returns:

the FHIR type of the resource being converted.