Package io.debezium.connector.cassandra.transforms

Class CassandraTypeDeserializer

java.lang.Object

io.debezium.connector.cassandra.transforms.CassandraTypeDeserializer

@ThreadSafe
@Immutable
public final class CassandraTypeDeserializer
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	CassandraTypeDeserializer.CassandraTypeDeserializerInstanceHolder
static enum	CassandraTypeDeserializer.DecimalMode
static enum	CassandraTypeDeserializer.VarIntMode

Field Summary

Fields

Modifier and Type	Field	Description
private Function<Object,Object>	baseType
private Map<Integer,TypeDeserializer>	DATATYPE_MAP
private Map<Class<?>,TypeDeserializer>	TYPE_MAP

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CassandraTypeDeserializer()

Method Summary

Modifier and Type	Method	Description
private Object	baseType(Object abstractType)
static Object	deserialize(com.datastax.oss.driver.api.core.type.DataType dataType, ByteBuffer bb)	Deserialize from snapshot/datastax-sourced cassandra data.
static Object	deserialize(Object abstractType, ByteBuffer bb)	Deserialize from cdc-log-sourced cassandra data.
static Object	deserialize(Object collectionType, List<ByteBuffer> bbList)	Deserialize from cdc-log-sourced cassandra data.
static CassandraTypeDeserializer	getInstance()
static org.apache.kafka.connect.data.SchemaBuilder	getSchemaBuilder(com.datastax.oss.driver.api.core.type.DataType dataType)
static org.apache.kafka.connect.data.SchemaBuilder	getSchemaBuilder(Object abstractType)	Construct a kafka connect SchemaBuilder object from a Cassandra data type
static TypeDeserializer	getTypeDeserializer(com.datastax.oss.driver.api.core.type.DataType dataType)
static TypeDeserializer	getTypeDeserializer(Object abstractType)	Get TypeDeserializer of AbstractType
static void	init(List<AbstractTypeDeserializer> typeDeserializers, CassandraTypeDeserializer.DecimalMode decimalMode, CassandraTypeDeserializer.VarIntMode varIntMode, Function<Object,Object> baseType)
private void	initInternal(List<AbstractTypeDeserializer> typeDeserializers, CassandraTypeDeserializer.DecimalMode decimalMode, CassandraTypeDeserializer.VarIntMode varIntMode, Function<Object,Object> baseType)
static void	setDecimalMode(CassandraTypeDeserializer.DecimalMode decimalMode)	Set deserialization mode for decimal columns
static void	setVarIntMode(CassandraTypeDeserializer.VarIntMode varIntMode)	Set deserialization mode for varint columns

Methods inherited from class java.lang.Object

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

Field Details

TYPE_MAP

private Map<Class<?>,TypeDeserializer> TYPE_MAP

DATATYPE_MAP

private Map<Integer,TypeDeserializer> DATATYPE_MAP

baseType

private Function<Object,Object> baseType

Constructor Details

CassandraTypeDeserializer

private CassandraTypeDeserializer()

Method Details

getInstance

public static CassandraTypeDeserializer getInstance()

init

public static void init(List<AbstractTypeDeserializer> typeDeserializers,
 CassandraTypeDeserializer.DecimalMode decimalMode,
 CassandraTypeDeserializer.VarIntMode varIntMode,
 Function<Object,Object> baseType)

initInternal

private void initInternal(List<AbstractTypeDeserializer> typeDeserializers,
 CassandraTypeDeserializer.DecimalMode decimalMode,
 CassandraTypeDeserializer.VarIntMode varIntMode,
 Function<Object,Object> baseType)

baseType

private Object baseType(Object abstractType)

deserialize

public static Object deserialize(com.datastax.oss.driver.api.core.type.DataType dataType,
 ByteBuffer bb)

Deserialize from snapshot/datastax-sourced cassandra data.

Parameters:

dataType - the DataType of the object

bb - the bytes of the column to deserialize

Returns:

the deserialized object.

deserialize

public static Object deserialize(Object abstractType,
 ByteBuffer bb)

Deserialize from cdc-log-sourced cassandra data.

Parameters:

abstractType - the AbstractType of the non-collection column

bb - the bytes of the non-collection column to deserialize

Returns:

the deserialized object.

deserialize

public static Object deserialize(Object collectionType,
 List<ByteBuffer> bbList)

Deserialize from cdc-log-sourced cassandra data.

Parameters:

collectionType - the CollectionType of the collection column

bbList - the ComplexColumnData of the collection column to deserialize

Returns:

the deserialized object.

getSchemaBuilder

public static org.apache.kafka.connect.data.SchemaBuilder getSchemaBuilder(Object abstractType)

Construct a kafka connect SchemaBuilder object from a Cassandra data type

Parameters:

abstractType - implementation of Cassandra's AbstractType

Returns:

the kafka connect SchemaBuilder object

getSchemaBuilder

public static org.apache.kafka.connect.data.SchemaBuilder getSchemaBuilder(com.datastax.oss.driver.api.core.type.DataType dataType)

getTypeDeserializer

public static TypeDeserializer getTypeDeserializer(Object abstractType)

Get TypeDeserializer of AbstractType

Parameters:

abstractType - the AbstractType of a column in cassandra

Returns:

the TypeDeserializer of the AbstractType.

getTypeDeserializer

public static TypeDeserializer getTypeDeserializer(com.datastax.oss.driver.api.core.type.DataType dataType)

setDecimalMode

public static void setDecimalMode(CassandraTypeDeserializer.DecimalMode decimalMode)

Set deserialization mode for decimal columns

Parameters:

decimalMode - the CassandraTypeDeserializer.DecimalMode of decimal values

setVarIntMode

public static void setVarIntMode(CassandraTypeDeserializer.VarIntMode varIntMode)

Set deserialization mode for varint columns

Parameters:

varIntMode - the CassandraTypeDeserializer.VarIntMode of varint values