Package io.debezium.connector.postgresql

Class LogicalDecodingMessageMonitor

java.lang.Object

io.debezium.connector.postgresql.LogicalDecodingMessageMonitor

public class LogicalDecodingMessageMonitor
extends Object

The class receives LogicalDecodingMessage events and delivers the event to the dedicated topic.

Every MESSAGE event has its payload block enriched to contain

• boolean that signifies if the message is transactional
• message prefix
• message content that is converted based on the connector's configured binary.handling.mode

Author:

Lairen Hightower

Field Summary

Fields

Modifier and Type	Field	Description
private final Base64.Encoder	base64Encoder
private final Base64.Encoder	base64UrlSafeEncoder
private final CommonConnectorConfig.BinaryHandlingMode	binaryMode
private final org.apache.kafka.connect.data.Schema	blockSchema
static final String	DEBEZIUM_LOGICAL_DECODING_MESSAGE_CONTENT_KEY
static final String	DEBEZIUM_LOGICAL_DECODING_MESSAGE_KEY
static final String	DEBEZIUM_LOGICAL_DECODING_MESSAGE_PREFIX_KEY
private final org.apache.kafka.connect.data.Schema	keySchema	The key schema; a struct like this:
static final String	LOGICAL_DECODING_MESSAGE_TOPIC_SUFFIX
private final SchemaNameAdjuster	schemaNameAdjuster
private final BlockingConsumer<org.apache.kafka.connect.source.SourceRecord>	sender
private final String	topicName
private final org.apache.kafka.connect.data.Schema	valueSchema

Constructor Summary

Constructors

Constructor	Description
LogicalDecodingMessageMonitor(PostgresConnectorConfig connectorConfig, BlockingConsumer<org.apache.kafka.connect.source.SourceRecord> sender)

Method Summary

Modifier and Type	Method	Description
private Object	convertContent(byte[] content)
void	logicalDecodingMessageEvent(Partition partition, OffsetContext offsetContext, Long timestamp, LogicalDecodingMessage message)

Methods inherited from class java.lang.Object

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

Field Details

LOGICAL_DECODING_MESSAGE_TOPIC_SUFFIX

public static final String LOGICAL_DECODING_MESSAGE_TOPIC_SUFFIX

See Also:

• Constant Field Values

DEBEZIUM_LOGICAL_DECODING_MESSAGE_KEY

public static final String DEBEZIUM_LOGICAL_DECODING_MESSAGE_KEY

See Also:

• Constant Field Values

DEBEZIUM_LOGICAL_DECODING_MESSAGE_PREFIX_KEY

public static final String DEBEZIUM_LOGICAL_DECODING_MESSAGE_PREFIX_KEY

See Also:

• Constant Field Values

DEBEZIUM_LOGICAL_DECODING_MESSAGE_CONTENT_KEY

public static final String DEBEZIUM_LOGICAL_DECODING_MESSAGE_CONTENT_KEY

See Also:

• Constant Field Values

schemaNameAdjuster

private final SchemaNameAdjuster schemaNameAdjuster

sender

private final BlockingConsumer<org.apache.kafka.connect.source.SourceRecord> sender

topicName

private final String topicName

binaryMode

private final CommonConnectorConfig.BinaryHandlingMode binaryMode

base64Encoder

private final Base64.Encoder base64Encoder

base64UrlSafeEncoder

private final Base64.Encoder base64UrlSafeEncoder

keySchema

private final org.apache.kafka.connect.data.Schema keySchema

The key schema; a struct like this:

{ "prefix" : "my-prefix" }

Using a struct over the plain prefix as a string for better evolvability down the road.

blockSchema

private final org.apache.kafka.connect.data.Schema blockSchema

valueSchema

private final org.apache.kafka.connect.data.Schema valueSchema

Constructor Details

LogicalDecodingMessageMonitor

public LogicalDecodingMessageMonitor(PostgresConnectorConfig connectorConfig,
 BlockingConsumer<org.apache.kafka.connect.source.SourceRecord> sender)

Method Details

logicalDecodingMessageEvent

public void logicalDecodingMessageEvent(Partition partition,
 OffsetContext offsetContext,
 Long timestamp,
 LogicalDecodingMessage message)
                                 throws InterruptedException

Throws:

InterruptedException

convertContent

private Object convertContent(byte[] content)