Package io.debezium.schema

Class TopicSelector<I extends DataCollectionId>

java.lang.Object

io.debezium.schema.TopicSelector<I>

Type Parameters:

I - The type of DataCollectionId used by a given implementation

public class TopicSelector<I extends DataCollectionId>
extends Object

Implementations return names for Kafka topics (data and meta-data).

Author:

Randal Hauch, Gunnar Morling

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	TopicSelector.DataCollectionTopicNamer<I extends DataCollectionId>	Implementations determine the topic name corresponding to a given data collection.
private static class	TopicSelector.TopicNameCache<I extends DataCollectionId>	A topic namer that caches names it has obtained from a delegate.
private static class	TopicSelector.TopicNameSanitizer<I extends DataCollectionId>	A topic namer that replaces any characters invalid in a topic name with _.

Field Summary

Fields

Modifier and Type	Field	Description
private TopicSelector.DataCollectionTopicNamer<I>	dataCollectionTopicNamer
private String	delimiter
private String	heartbeatPrefix
private String	prefix

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TopicSelector(String prefix, String heartbeatPrefix, String delimiter, TopicSelector.DataCollectionTopicNamer<I> dataCollectionTopicNamer)

Method Summary

Modifier and Type	Method	Description
static <I extends DataCollectionId> TopicSelector<I>	defaultSelector(CommonConnectorConfig connectorConfig, TopicSelector.DataCollectionTopicNamer<I> dataCollectionTopicNamer)
static <I extends DataCollectionId> TopicSelector<I>	defaultSelector(String prefix, String heartbeatPrefix, String delimiter, TopicSelector.DataCollectionTopicNamer<I> dataCollectionTopicNamer)
String	getHeartbeatTopic()	Get the name of the heartbeat topic for the given server.
String	getPrimaryTopic()	Get the name of the primary topic.
String	topicNameFor(I id)	Returns the name of the Kafka topic for a given data collection identifier

Methods inherited from class java.lang.Object

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

Field Detail

prefix

private final String prefix

heartbeatPrefix

private final String heartbeatPrefix

delimiter

private final String delimiter

dataCollectionTopicNamer

private final TopicSelector.DataCollectionTopicNamer<I extends DataCollectionId> dataCollectionTopicNamer

Constructor Detail

TopicSelector

private TopicSelector(String prefix,
                      String heartbeatPrefix,
                      String delimiter,
                      TopicSelector.DataCollectionTopicNamer<I> dataCollectionTopicNamer)

Method Detail

defaultSelector

public static <I extends DataCollectionId> TopicSelector<I> defaultSelector(String prefix,
                                                                            String heartbeatPrefix,
                                                                            String delimiter,
                                                                            TopicSelector.DataCollectionTopicNamer<I> dataCollectionTopicNamer)

defaultSelector

public static <I extends DataCollectionId> TopicSelector<I> defaultSelector(CommonConnectorConfig connectorConfig,
                                                                            TopicSelector.DataCollectionTopicNamer<I> dataCollectionTopicNamer)

topicNameFor

public String topicNameFor(I id)

Returns the name of the Kafka topic for a given data collection identifier

Parameters:

id - the data collection identifier, never null

Returns:

the name of the Kafka topic, never null

getPrimaryTopic

public String getPrimaryTopic()

Get the name of the primary topic.

Returns:

the topic name; never null

getHeartbeatTopic

public String getHeartbeatTopic()

Get the name of the heartbeat topic for the given server. This method returns "<prefix>-heartbeat".

Returns:

the topic name; never null