com.amazonaws.services.schemaregistry.deserializers

Class GlueSchemaRegistryDeserializerDataParser

java.lang.Object

com.amazonaws.services.schemaregistry.deserializers.GlueSchemaRegistryDeserializerDataParser

public final class GlueSchemaRegistryDeserializerDataParser
extends Object

Parser that understands the schema registry data format and extracts schema id from serialized data, also performs data integrity validations.

Method Summary

Modifier and Type	Method and Description
Byte	getCompressionByte(ByteBuffer byteBuffer) Get the compression byte.
Byte	getHeaderVersionByte(ByteBuffer byteBuffer) Get the header version byte.
static GlueSchemaRegistryDeserializerDataParser	getInstance() Singleton instantiation helper.
byte[]	getPlainData(ByteBuffer byteBuffer)
UUID	getSchemaVersionId(ByteBuffer byteBuffer) Gets the schema version id embedded within the data.
boolean	isCompressionEnabled(ByteBuffer byteBuffer) Is Compression enabled
boolean	isDataCompatible(ByteBuffer byteBuffer, StringBuilder errorBuilder) Validates the data for compatibility with schema registry.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static GlueSchemaRegistryDeserializerDataParser getInstance()

Singleton instantiation helper.

Returns:

returns a singleton instance for GlueSchemaRegistryDeserializerDataParser

getSchemaVersionId

public UUID getSchemaVersionId(ByteBuffer byteBuffer)

Gets the schema version id embedded within the data.

Parameters:

byteBuffer - data from where schema version id has to be extracted as ByteBuffer

Returns:

schema UUID

Throws:

GlueSchemaRegistryIncompatibleDataException - when the data is incompatible with schema registry

isDataCompatible

public boolean isDataCompatible(ByteBuffer byteBuffer,
                                StringBuilder errorBuilder)

Validates the data for compatibility with schema registry.

Parameters:

byteBuffer - input data as byte buffer

errorBuilder - error message for the validation that can be used by the caller

Returns:

true - validation success; false - otherwise

getPlainData

public byte[] getPlainData(ByteBuffer byteBuffer)

isCompressionEnabled

public boolean isCompressionEnabled(ByteBuffer byteBuffer)

Is Compression enabled

Parameters:

byteBuffer - byte buffer

Returns:

whether the byte buffer has been compressed

getCompressionByte

public Byte getCompressionByte(ByteBuffer byteBuffer)

Get the compression byte.

Parameters:

byteBuffer - byte buffer

Returns:

compression byte

getHeaderVersionByte

public Byte getHeaderVersionByte(ByteBuffer byteBuffer)

Get the header version byte.

Parameters:

byteBuffer - byte buffer

Returns:

header byte