Package com.amazonaws.services.schemaregistry.common

Class SchemaByDefinitionFetcher

java.lang.Object

com.amazonaws.services.schemaregistry.common.SchemaByDefinitionFetcher

public class SchemaByDefinitionFetcher
extends Object

Fetches the schema version for the given schema definition optionally registering the schema if required.

Field Summary

Fields

Modifier and Type	Field	Description
protected @NonNull com.google.common.cache.LoadingCache<Schema,UUID>	schemaDefinitionToVersionCache

Constructor Summary

Constructors

Constructor	Description
SchemaByDefinitionFetcher(AWSSchemaRegistryClient awsSchemaRegistryClient, GlueSchemaRegistryConfiguration glueSchemaRegistryConfiguration)

Method Summary

Modifier and Type	Method	Description
UUID	getORRegisterSchemaVersionId(@NonNull String schemaDefinition, @NonNull String schemaName, @NonNull String dataFormat, @NonNull Map<String,String> metadata)	Get Schema Version ID by following below steps :

Methods inherited from class java.lang.Object

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

Field Detail

schemaDefinitionToVersionCache

@NonNull
protected final @NonNull com.google.common.cache.LoadingCache<Schema,UUID> schemaDefinitionToVersionCache

Constructor Detail

SchemaByDefinitionFetcher

public SchemaByDefinitionFetcher(AWSSchemaRegistryClient awsSchemaRegistryClient,
                                 GlueSchemaRegistryConfiguration glueSchemaRegistryConfiguration)

Method Detail

getORRegisterSchemaVersionId

public UUID getORRegisterSchemaVersionId(@NonNull
                                         @NonNull String schemaDefinition,
                                         @NonNull
                                         @NonNull String schemaName,
                                         @NonNull
                                         @NonNull String dataFormat,
                                         @NonNull
                                         @NonNull Map<String,String> metadata)
                                  throws AWSSchemaRegistryException

Get Schema Version ID by following below steps :

1) If schema version id exists in registry then get it from registry 2) If schema version id does not exist in registry then if auto registration is enabled then if schema exists but version doesn't exist then 2.1) Register schema version else if schema does not exist then 2.2) create schema and register schema version

Parameters:

schemaDefinition - Schema Definition

schemaName - Schema Name

dataFormat - Data Format

metadata - metadata for schema version

Returns:

Schema Version ID

Throws:

AWSSchemaRegistryException - on any error while fetching the schema version ID