io.debezium.connector.mongodb.transforms

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

java.lang.Object

io.debezium.connector.mongodb.transforms.UnwrapFromMongoDbEnvelope<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>

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

Debezium Mongo Connector generates the CDC records in String format. Sink connectors usually are not able to parse the string and insert the document as it is represented in the Source. so a user use this SMT to parse the String and insert the MongoDB document in the JSON format.

Author:

Sairam Polavarapu

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UnwrapFromMongoDbEnvelope.ArrayEncoding

Field Summary

Fields

Modifier and Type	Field and Description
private org.apache.kafka.connect.transforms.ExtractField<R>	afterExtractor
private static Field	ARRAY_ENCODING
private MongoDataConverter	converter
private String	delimiter
private static Field	DELIMITER
private static Field	FLATTEN_STRUCT
private boolean	flattenStruct
private org.apache.kafka.connect.transforms.ExtractField<R>	keyExtractor
private static org.slf4j.Logger	LOGGER
private org.apache.kafka.connect.transforms.ExtractField<R>	patchExtractor
private org.apache.kafka.connect.transforms.Flatten<R>	recordFlattener

Constructor Summary

Constructors

Constructor and Description
UnwrapFromMongoDbEnvelope()

Method Summary

Modifier and Type	Method and Description
R	apply(R r)
void	close()
org.apache.kafka.common.config.ConfigDef	config()
void	configure(Map<String,?> map)

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

ARRAY_ENCODING

private static final Field ARRAY_ENCODING

FLATTEN_STRUCT

private static final Field FLATTEN_STRUCT

DELIMITER

private static final Field DELIMITER

afterExtractor

private final org.apache.kafka.connect.transforms.ExtractField<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> afterExtractor

patchExtractor

private final org.apache.kafka.connect.transforms.ExtractField<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> patchExtractor

keyExtractor

private final org.apache.kafka.connect.transforms.ExtractField<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> keyExtractor

converter

private MongoDataConverter converter

recordFlattener

private final org.apache.kafka.connect.transforms.Flatten<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> recordFlattener

flattenStruct

private boolean flattenStruct

delimiter

private String delimiter

Constructor Detail

UnwrapFromMongoDbEnvelope

public UnwrapFromMongoDbEnvelope()

Method Detail

apply

public R apply(R r)

Specified by:

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

config

public org.apache.kafka.common.config.ConfigDef config()

Specified by:

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

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

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

configure

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

Specified by:

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