io.debezium.connector.postgresql.connection.pgproto

Class PgProtoReplicationMessage

java.lang.Object

io.debezium.connector.postgresql.connection.pgproto.PgProtoReplicationMessage

All Implemented Interfaces:

ReplicationMessage

class PgProtoReplicationMessage
extends Object
implements ReplicationMessage

Replication message representing message sent by Postgres Decoderbufs

Author:

Jiri Pechanec

Nested Class Summary

Nested classes/interfaces inherited from interface io.debezium.connector.postgresql.connection.ReplicationMessage

ReplicationMessage.Column, ReplicationMessage.ColumnTypeMetadata, ReplicationMessage.ColumnValue<T>, ReplicationMessage.Operation

Field Summary

Fields

Modifier and Type	Field and Description
private static org.slf4j.Logger	LOGGER
private PgProto.RowMessage	rawMessage
private TypeRegistry	typeRegistry

Constructor Summary

Constructors

Constructor and Description
PgProtoReplicationMessage(PgProto.RowMessage rawMessage, TypeRegistry typeRegistry)

Method Summary

Modifier and Type	Method and Description
private Object	getArray(PgProto.DatumMessage datumMessage, PostgresStreamingChangeEventSource.PgConnectionSupplier connection, int columnType)
Instant	getCommitTime()
List<ReplicationMessage.Column>	getNewTupleList()
List<ReplicationMessage.Column>	getOldTupleList()
ReplicationMessage.Operation	getOperation()
String	getTable()
long	getTransactionId()
Object	getValue(PgProto.DatumMessage datumMessage, PostgresStreamingChangeEventSource.PgConnectionSupplier connection, boolean includeUnknownDatatypes) Converts the Protobuf value for a plugin message to a Java value based on the type of the column from the message.
boolean	hasTypeMetadata()
boolean	isLastEventForLsn()
private List<ReplicationMessage.Column>	transform(List<PgProto.DatumMessage> messageList, List<PgProto.TypeInfo> typeInfoList)

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.debezium.connector.postgresql.connection.ReplicationMessage

shouldSchemaBeSynchronized

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

rawMessage

private final PgProto.RowMessage rawMessage

typeRegistry

private final TypeRegistry typeRegistry

Constructor Detail

PgProtoReplicationMessage

public PgProtoReplicationMessage(PgProto.RowMessage rawMessage,
                                 TypeRegistry typeRegistry)

Method Detail

getOperation

public ReplicationMessage.Operation getOperation()

Specified by:

getOperation in interface ReplicationMessage

Returns:

A data operation executed

getCommitTime

public Instant getCommitTime()

Specified by:

getCommitTime in interface ReplicationMessage

Returns:

Transaction commit time for this change

getTransactionId

public long getTransactionId()

Specified by:

getTransactionId in interface ReplicationMessage

Returns:

An id of transaction to which this change belongs

getTable

public String getTable()

Specified by:

getTable in interface ReplicationMessage

Returns:

Table changed

getOldTupleList

public List<ReplicationMessage.Column> getOldTupleList()

Specified by:

getOldTupleList in interface ReplicationMessage

Returns:

Set of original values of table columns, null for INSERT

getNewTupleList

public List<ReplicationMessage.Column> getNewTupleList()

Specified by:

getNewTupleList in interface ReplicationMessage

Returns:

Set of new values of table columns, null for DELETE

hasTypeMetadata

public boolean hasTypeMetadata()

Specified by:

hasTypeMetadata in interface ReplicationMessage

Returns:

true if type metadata are passed as a part of message

transform

private List<ReplicationMessage.Column> transform(List<PgProto.DatumMessage> messageList,
                                                  List<PgProto.TypeInfo> typeInfoList)

isLastEventForLsn

public boolean isLastEventForLsn()

Specified by:

isLastEventForLsn in interface ReplicationMessage

Returns:

true if this is the last message in the batch of messages with same LSN

getValue

public Object getValue(PgProto.DatumMessage datumMessage,
                       PostgresStreamingChangeEventSource.PgConnectionSupplier connection,
                       boolean includeUnknownDatatypes)

Converts the Protobuf value for a plugin message to a Java value based on the type of the column from the message. This value will be converted later on if necessary by the PostgresValueConverter.converter(Column, Field) instance to match whatever the Connect schema type expects. Note that the logic here is tightly coupled (i.e. dependent) on the Postgres plugin logic which writes the actual Protobuf messages.

Parameters:

a - supplier to get a connection to Postgres instance for array handling

Returns:

the value; may be null

getArray

private Object getArray(PgProto.DatumMessage datumMessage,
                        PostgresStreamingChangeEventSource.PgConnectionSupplier connection,
                        int columnType)