Package io.debezium.connector.cassandra

Class QueueProcessor

java.lang.Object

io.debezium.connector.cassandra.AbstractProcessor

io.debezium.connector.cassandra.QueueProcessor

public class QueueProcessor
extends AbstractProcessor

A thread that constantly polls records from the queue and emit them to Kafka via the KafkaRecordEmitter. The processor is also responsible for marking the offset to file and deleting the commit log files.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ARCHIVE_FOLDER
private final String	commitLogRelocationDir
private final Set<String>	erroneousCommitLogs
static final String	ERROR_FOLDER
private static final org.slf4j.Logger	LOGGER
private static final String	NAME_PREFIX
private final io.debezium.connector.base.ChangeEventQueue<Event>	queue
private final Emitter	recordEmitter

Constructor Summary

Constructors

Constructor	Description
QueueProcessor(CassandraConnectorContext context, int index, Emitter recordEmitter)

Method Summary

Modifier and Type	Method	Description
void	destroy()	Override destroy to clean up resources after stopping the processor
void	initialize()	Override initialize to initialize resources before starting the processor
void	process()	The actual work the processor is doing.
private void	processEvent(Event event)

Methods inherited from class io.debezium.connector.cassandra.AbstractProcessor

getName, isRunning, start, stop

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

queue

private final io.debezium.connector.base.ChangeEventQueue<Event> queue

recordEmitter

private final Emitter recordEmitter

commitLogRelocationDir

private final String commitLogRelocationDir

erroneousCommitLogs

private final Set<String> erroneousCommitLogs

NAME_PREFIX

private static final String NAME_PREFIX

See Also:

• Constant Field Values

ARCHIVE_FOLDER

public static final String ARCHIVE_FOLDER

See Also:

• Constant Field Values

ERROR_FOLDER

public static final String ERROR_FOLDER

See Also:

• Constant Field Values

Constructor Details

QueueProcessor

public QueueProcessor(CassandraConnectorContext context,
 int index,
 Emitter recordEmitter)

Method Details

process

public void process()
             throws InterruptedException

Description copied from class: AbstractProcessor

The actual work the processor is doing. This method will be executed in a while loop until processor stops or encounters exception.

Specified by:

process in class AbstractProcessor

Throws:

InterruptedException

initialize

public void initialize()
                throws Exception

Description copied from class: AbstractProcessor

Override initialize to initialize resources before starting the processor

Overrides:

initialize in class AbstractProcessor

Throws:

Exception

destroy

public void destroy()
             throws Exception

Description copied from class: AbstractProcessor

Override destroy to clean up resources after stopping the processor

Overrides:

destroy in class AbstractProcessor

Throws:

Exception

processEvent

private void processEvent(Event event)