Package io.debezium.transforms

Class AbstractExtractNewRecordState<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

java.lang.Object

io.debezium.transforms.AbstractExtractNewRecordState<R>

Type Parameters:

R - the subtype of ConnectRecord on which this transformation will operate

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.kafka.common.Configurable, org.apache.kafka.connect.transforms.Transformation<R>

Direct Known Subclasses:

ExtractNewRecordState

public abstract class AbstractExtractNewRecordState<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>
extends Object
implements org.apache.kafka.connect.transforms.Transformation<R>

ExtractNewRecordState and ExtractNewDocumentState that contains shared logic for transformation

Author:

Harvey Yue

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractExtractNewRecordState.FieldReference	Represents a field that should be added to the outgoing record as a header attribute or struct field.
protected static class	AbstractExtractNewRecordState.NewRecordValueMetadata

Field Summary

Fields

Modifier and Type	Field	Description
protected List<AbstractExtractNewRecordState.FieldReference>	additionalFields
protected List<AbstractExtractNewRecordState.FieldReference>	additionalHeaders
protected Configuration	config
protected ExtractRecordStrategy<R>	extractRecordStrategy
private static final Pattern	FIELD_SEPARATOR
private static final org.slf4j.Logger	LOGGER
private static final Pattern	NEW_FIELD_SEPARATOR
protected static final String	PURPOSE
protected String	routeByField
protected SmtManager<R>	smtManager
private static final String	UPDATE_DESCRIPTION

Constructor Summary

Constructors

Constructor	Description
AbstractExtractNewRecordState()

Method Summary

Modifier and Type	Method	Description
R	apply(R record)
void	close()
void	configure(Map<String,?> configs)
protected abstract R	doApply(R record)
protected org.apache.kafka.connect.header.Header	getHeaderByName(R record, String headerName)	Retrieve the Header object from connect record by specified header name
protected org.apache.kafka.connect.header.Headers	makeHeaders(List<AbstractExtractNewRecordState.FieldReference> additionalHeaders, org.apache.kafka.connect.data.Struct originalRecordValue)	Create the Headers object which contains the headers to be added.
protected R	setTopic(String updatedTopicValue, R record)	Set a new topic to connect record
protected abstract Iterable<Field>	validateConfigFields()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.kafka.connect.transforms.Transformation

config

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

FIELD_SEPARATOR

private static final Pattern FIELD_SEPARATOR

NEW_FIELD_SEPARATOR

private static final Pattern NEW_FIELD_SEPARATOR

UPDATE_DESCRIPTION

private static final String UPDATE_DESCRIPTION

See Also:

• Constant Field Values

PURPOSE

protected static final String PURPOSE

See Also:

• Constant Field Values

config

protected Configuration config

smtManager

protected SmtManager<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> smtManager

extractRecordStrategy

protected ExtractRecordStrategy<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> extractRecordStrategy

additionalHeaders

protected List<AbstractExtractNewRecordState.FieldReference> additionalHeaders

additionalFields

protected List<AbstractExtractNewRecordState.FieldReference> additionalFields

routeByField

protected String routeByField

Constructor Details

AbstractExtractNewRecordState

public AbstractExtractNewRecordState()

Method Details

configure

public void configure(Map<String,?> configs)

Specified by:

configure in interface org.apache.kafka.common.Configurable

apply

public R apply(R record)

Specified by:

apply in interface org.apache.kafka.connect.transforms.Transformation<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

doApply

protected abstract R doApply(R record)

validateConfigFields

protected abstract Iterable<Field> validateConfigFields()

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface org.apache.kafka.connect.transforms.Transformation<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

setTopic

protected R setTopic(String updatedTopicValue,
 R record)

Set a new topic to connect record

makeHeaders

protected org.apache.kafka.connect.header.Headers makeHeaders(List<AbstractExtractNewRecordState.FieldReference> additionalHeaders,
 org.apache.kafka.connect.data.Struct originalRecordValue)

Create the Headers object which contains the headers to be added.

getHeaderByName

protected org.apache.kafka.connect.header.Header getHeaderByName(R record,
 String headerName)

Retrieve the Header object from connect record by specified header name