io.debezium.connector.postgresql.connection.wal2json

Class NonStreamingWal2JsonMessageDecoder

java.lang.Object

io.debezium.connector.postgresql.connection.AbstractMessageDecoder

io.debezium.connector.postgresql.connection.wal2json.NonStreamingWal2JsonMessageDecoder

All Implemented Interfaces:

MessageDecoder

public class NonStreamingWal2JsonMessageDecoder
extends AbstractMessageDecoder

A non-streaming version of JSON deserialization of a message sent by wal2json logical decoding plugin. The plugin sends all changes in one transaction as a single batch in a big JSON file and they are passed to processor one-by-one.

Author:

Jiri Pechanec

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	containsMetadata
private DateTimeFormat	dateTime
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor and Description
NonStreamingWal2JsonMessageDecoder()

Method Summary

Modifier and Type	Method and Description
org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder	optionsWithMetadata(org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder builder) Allows MessageDecoder to configure options with which the replication stream is started.
org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder	optionsWithoutMetadata(org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder builder) Allows MessageDecoder to configure options with which the replication stream is started.
void	processMessage(ByteBuffer buffer, ReplicationStream.ReplicationMessageProcessor processor, TypeRegistry typeRegistry) Process a message upon arrival from logical decoder
void	setContainsMetadata(boolean containsMetadata) Signals to this decoder whether messages contain type metadata or not.

Methods inherited from class io.debezium.connector.postgresql.connection.AbstractMessageDecoder

shouldMessageBeSkipped

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

dateTime

private final DateTimeFormat dateTime

containsMetadata

private boolean containsMetadata

Constructor Detail

NonStreamingWal2JsonMessageDecoder

public NonStreamingWal2JsonMessageDecoder()

Method Detail

processMessage

public void processMessage(ByteBuffer buffer,
                           ReplicationStream.ReplicationMessageProcessor processor,
                           TypeRegistry typeRegistry)
                    throws SQLException,
                           InterruptedException

Description copied from interface: MessageDecoder

Process a message upon arrival from logical decoder

Parameters:

buffer - - binary representation of replication message

processor - - message processing on arrival

typeRegistry - - registry with known types

Throws:

SQLException

InterruptedException

optionsWithMetadata

public org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder optionsWithMetadata(org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder builder)

Description copied from interface: MessageDecoder

Allows MessageDecoder to configure options with which the replication stream is started. The messages CAN contain type metadata. See PostgreSQL command START_REPLICATION SLOT for more details.

Returns:

the builder instance

optionsWithoutMetadata

public org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder optionsWithoutMetadata(org.postgresql.replication.fluent.logical.ChainedLogicalStreamBuilder builder)

Description copied from interface: MessageDecoder

Allows MessageDecoder to configure options with which the replication stream is started. The messages MUST NOT contain type metadata. See PostgreSQL command START_REPLICATION SLOT for more details.

Returns:

the builder instance

setContainsMetadata

public void setContainsMetadata(boolean containsMetadata)

Description copied from interface: MessageDecoder

Signals to this decoder whether messages contain type metadata or not.