Package org.apache.kafka.connect.tools

Class VerifiableSourceTask

java.lang.Object

org.apache.kafka.connect.source.SourceTask

org.apache.kafka.connect.tools.VerifiableSourceTask

All Implemented Interfaces:

org.apache.kafka.connect.connector.Task

public class VerifiableSourceTask
extends org.apache.kafka.connect.source.SourceTask

A connector primarily intended for system tests. The connector simply generates as many tasks as requested. The tasks print metadata in the form of JSON to stdout for each message generated, making externally visible which messages have been sent. Each message is also assigned a unique, increasing seqno that is passed to Kafka Connect; when tasks are started on new nodes, this seqno is used to resume where the task previously left off, allowing for testing of distributed Kafka Connect.

If logging is left enabled, log output on stdout can be easily ignored by checking whether a given line is valid JSON.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.kafka.connect.source.SourceTask

org.apache.kafka.connect.source.SourceTask.TransactionBoundary

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COMPLETE_RECORD_DATA_CONFIG
static final String	ID_CONFIG
static final String	NAME_CONFIG
static final String	THROUGHPUT_CONFIG
static final String	TOPIC_CONFIG

Fields inherited from class org.apache.kafka.connect.source.SourceTask

TRANSACTION_BOUNDARY_CONFIG

Constructor Summary

Constructors

Constructor	Description
VerifiableSourceTask()

Method Summary

Modifier and Type	Method	Description
void	commitRecord(org.apache.kafka.connect.source.SourceRecord record, org.apache.kafka.clients.producer.RecordMetadata metadata)
List<org.apache.kafka.connect.source.SourceRecord>	poll()
void	start(Map<String,String> props)
void	stop()
String	version()

Methods inherited from class org.apache.kafka.connect.source.SourceTask

commit, initialize

Methods inherited from class java.lang.Object

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

Field Details

NAME_CONFIG

public static final String NAME_CONFIG

See Also:

• Constant Field Values

ID_CONFIG

public static final String ID_CONFIG

See Also:

• Constant Field Values

TOPIC_CONFIG

public static final String TOPIC_CONFIG

See Also:

• Constant Field Values

THROUGHPUT_CONFIG

public static final String THROUGHPUT_CONFIG

See Also:

• Constant Field Values

COMPLETE_RECORD_DATA_CONFIG

public static final String COMPLETE_RECORD_DATA_CONFIG

See Also:

• Constant Field Values

Constructor Details

VerifiableSourceTask

public VerifiableSourceTask()

Method Details

version

public String version()

start

public void start(Map<String,String> props)

Specified by:

start in interface org.apache.kafka.connect.connector.Task

Specified by:

start in class org.apache.kafka.connect.source.SourceTask

poll

public List<org.apache.kafka.connect.source.SourceRecord> poll()

Specified by:

poll in class org.apache.kafka.connect.source.SourceTask

commitRecord

public void commitRecord(org.apache.kafka.connect.source.SourceRecord record,
 org.apache.kafka.clients.producer.RecordMetadata metadata)

Overrides:

commitRecord in class org.apache.kafka.connect.source.SourceTask

stop

public void stop()

Specified by:

stop in interface org.apache.kafka.connect.connector.Task

Specified by:

stop in class org.apache.kafka.connect.source.SourceTask