Package io.debezium.schema

Class AbstractRegexTopicNamingStrategy

java.lang.Object

io.debezium.schema.AbstractTopicNamingStrategy<DataCollectionId>

io.debezium.schema.AbstractRegexTopicNamingStrategy

All Implemented Interfaces:

TopicNamingStrategy<DataCollectionId>

Direct Known Subclasses:

DefaultRegexTopicNamingStrategy, SchemaRegexTopicNamingStrategy

@Incubating
public abstract class AbstractRegexTopicNamingStrategy
extends AbstractTopicNamingStrategy<DataCollectionId>

An abstract regex implementation of TopicNamingStrategy.

Author:

Harvey Yue

Nested Class Summary

Nested classes/interfaces inherited from interface io.debezium.spi.topic.TopicNamingStrategy

TopicNamingStrategy.TopicSchemaAugment<S extends Object>, TopicNamingStrategy.TopicValueAugment<I extends DataCollectionId,S extends Object,R extends Object>

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	keyEnforceUniqueness
private String	keyFieldName
private Pattern	keyFieldRegex
private String	keyFieldReplacement
private BoundedConcurrentHashMap<String,String>	keyRegexReplaceCache
private static final org.slf4j.Logger	LOGGER
static final Field	TOPIC_KEY_ENFORCE_UNIQUENESS
static final Field	TOPIC_KEY_FIELD_NAME
static final Field	TOPIC_KEY_FIELD_REGEX
static final Field	TOPIC_KEY_FIELD_REPLACEMENT
static final Field	TOPIC_REGEX
static final Field	TOPIC_REPLACEMENT
private Pattern	topicRegex
private String	topicReplacement

Fields inherited from class io.debezium.schema.AbstractTopicNamingStrategy

DEFAULT_HEARTBEAT_TOPIC_PREFIX, DEFAULT_TRANSACTION_TOPIC, delimiter, heartbeatPrefix, multiPartitionMode, prefix, replacement, TOPIC_CACHE_SIZE, TOPIC_DELIMITER, TOPIC_HEARTBEAT_PREFIX, TOPIC_TRANSACTION, topicNames, transaction

Fields inherited from interface io.debezium.spi.topic.TopicNamingStrategy

MAX_NAME_LENGTH, NO_SCHEMA_OP, NO_VALUE_OP

Constructor Summary

Constructors

Constructor	Description
AbstractRegexTopicNamingStrategy(Properties props)

Method Summary

Modifier and Type	Method	Description
void	configure(Properties props)
String	dataChangeTopic(DataCollectionId id)
protected String	determineNewTopic(DataCollectionId tableId, String oldTopic)	Determine the new topic name.
abstract String	getOriginTopic(DataCollectionId id)
TopicNamingStrategy.TopicSchemaAugment<org.apache.kafka.connect.data.SchemaBuilder>	keySchemaAugment()
TopicNamingStrategy.TopicValueAugment<DataCollectionId,org.apache.kafka.connect.data.Schema,org.apache.kafka.connect.data.Struct>	keyValueAugment()
private static int	validateKeyFieldReplacement(Configuration config, Field field, Field.ValidationOutput problems)	If TOPIC_KEY_FIELD_REGEX has a value that is really a regex, then the TOPIC_KEY_FIELD_REPLACEMENT must be a non-empty value.
private static int	validateTopicReplacement(Configuration config, Field field, Field.ValidationOutput problems)	If TOPIC_REGEX has a value that is really a regex, then the TOPIC_REPLACEMENT must be a non-empty value.

Methods inherited from class io.debezium.schema.AbstractTopicNamingStrategy

getSchemaPartsTopicName, heartbeatTopic, isValidCharacter, mkString, sanitizedTopicName, schemaChangeTopic, transactionTopic

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.debezium.spi.topic.TopicNamingStrategy

recordSchemaPrefix

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

TOPIC_REGEX

public static final Field TOPIC_REGEX

TOPIC_REPLACEMENT

public static final Field TOPIC_REPLACEMENT

TOPIC_KEY_ENFORCE_UNIQUENESS

public static final Field TOPIC_KEY_ENFORCE_UNIQUENESS

TOPIC_KEY_FIELD_NAME

public static final Field TOPIC_KEY_FIELD_NAME

TOPIC_KEY_FIELD_REGEX

public static final Field TOPIC_KEY_FIELD_REGEX

TOPIC_KEY_FIELD_REPLACEMENT

public static final Field TOPIC_KEY_FIELD_REPLACEMENT

topicRegex

private Pattern topicRegex

topicReplacement

private String topicReplacement

keyEnforceUniqueness

private boolean keyEnforceUniqueness

keyFieldName

private String keyFieldName

keyFieldRegex

private Pattern keyFieldRegex

keyFieldReplacement

private String keyFieldReplacement

keyRegexReplaceCache

private BoundedConcurrentHashMap<String,String> keyRegexReplaceCache

Constructor Details

AbstractRegexTopicNamingStrategy

public AbstractRegexTopicNamingStrategy(Properties props)

Method Details

validateTopicReplacement

private static int validateTopicReplacement(Configuration config,
 Field field,
 Field.ValidationOutput problems)

If TOPIC_REGEX has a value that is really a regex, then the TOPIC_REPLACEMENT must be a non-empty value.

validateKeyFieldReplacement

private static int validateKeyFieldReplacement(Configuration config,
 Field field,
 Field.ValidationOutput problems)

If TOPIC_KEY_FIELD_REGEX has a value that is really a regex, then the TOPIC_KEY_FIELD_REPLACEMENT must be a non-empty value.

configure

public void configure(Properties props)

Specified by:

configure in interface TopicNamingStrategy<DataCollectionId>

Overrides:

configure in class AbstractTopicNamingStrategy<DataCollectionId>

dataChangeTopic

public String dataChangeTopic(DataCollectionId id)

Specified by:

dataChangeTopic in interface TopicNamingStrategy<DataCollectionId>

Specified by:

dataChangeTopic in class AbstractTopicNamingStrategy<DataCollectionId>

getOriginTopic

public abstract String getOriginTopic(DataCollectionId id)

determineNewTopic

protected String determineNewTopic(DataCollectionId tableId,
 String oldTopic)

Determine the new topic name.

Parameters:

tableId - the table id

oldTopic - the name of the old topic

Returns:

return the new topic name, if the regex applies. Otherwise, return original topic.

keySchemaAugment

public TopicNamingStrategy.TopicSchemaAugment<org.apache.kafka.connect.data.SchemaBuilder> keySchemaAugment()

keyValueAugment

public TopicNamingStrategy.TopicValueAugment<DataCollectionId,org.apache.kafka.connect.data.Schema,org.apache.kafka.connect.data.Struct> keyValueAugment()