Package datahub.client.kafka

Class KafkaEmitter

java.lang.Object

datahub.client.kafka.KafkaEmitter

All Implemented Interfaces:

Emitter, java.io.Closeable, java.lang.AutoCloseable

public class KafkaEmitter
extends java.lang.Object
implements Emitter

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	DEFAULT_MCP_KAFKA_TOPIC

Constructor Summary

Constructors

Constructor	Description
KafkaEmitter(KafkaEmitterConfig config)	The default constructor

Method Summary

Modifier and Type	Method	Description
void	close()
java.util.concurrent.Future<MetadataWriteResponse>	emit(com.linkedin.mxe.MetadataChangeProposal mcp, Callback datahubCallback)	Asynchronously emit a MetadataChangeProposal event.
java.util.concurrent.Future<MetadataWriteResponse>	emit(MetadataChangeProposalWrapper mcpw, Callback datahubCallback)	Asynchronously emit a MetadataChangeProposalWrapper event.
java.util.concurrent.Future<MetadataWriteResponse>	emit(java.util.List<UpsertAspectRequest> request, Callback callback)	Asynchronously emit a UpsertAspectRequest.
java.util.Properties	getKafkaConfgiProperties()
boolean	testConnection()	Test that the emitter can establish a valid connection to the DataHub platform

Methods inherited from class java.lang.Object

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

Methods inherited from interface datahub.client.Emitter

emit, emit

Field Detail

DEFAULT_MCP_KAFKA_TOPIC

public static final java.lang.String DEFAULT_MCP_KAFKA_TOPIC

See Also:

Constant Field Values

Constructor Detail

KafkaEmitter

public KafkaEmitter(KafkaEmitterConfig config)
             throws java.io.IOException

The default constructor

Parameters:

config -

Throws:

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Throws:

java.io.IOException

emit

public java.util.concurrent.Future<MetadataWriteResponse> emit(MetadataChangeProposalWrapper mcpw,
                                                               Callback datahubCallback)
                                                        throws java.io.IOException

Description copied from interface: Emitter

Asynchronously emit a MetadataChangeProposalWrapper event.

Specified by:

emit in interface Emitter

datahubCallback - if not null, is called from the IO thread. Should be a quick operation.

Returns:

a Future for callers to inspect the result of the operation or block until one is available

Throws:

java.io.IOException

emit

public java.util.concurrent.Future<MetadataWriteResponse> emit(com.linkedin.mxe.MetadataChangeProposal mcp,
                                                               Callback datahubCallback)
                                                        throws java.io.IOException

Description copied from interface: Emitter

Asynchronously emit a MetadataChangeProposal event. Prefer using the sibling method that accepts a MetadataChangeProposalWrapper event as those are friendlier to construct.

Specified by:

emit in interface Emitter

datahubCallback - if not null, is called from the IO thread. Should be a quick operation.

Returns:

a Future for callers to inspect the result of the operation or block until one is available

Throws:

java.io.IOException

testConnection

public boolean testConnection()
                       throws java.io.IOException,
                              java.util.concurrent.ExecutionException,
                              java.lang.InterruptedException

Description copied from interface: Emitter

Test that the emitter can establish a valid connection to the DataHub platform

Specified by:

testConnection in interface Emitter

Returns:

true if a valid connection can be established, false or throws one of the exceptions otherwise

Throws:

java.io.IOException

java.util.concurrent.ExecutionException

java.lang.InterruptedException

emit

public java.util.concurrent.Future<MetadataWriteResponse> emit(java.util.List<UpsertAspectRequest> request,
                                                               Callback callback)
                                                        throws java.io.IOException

Description copied from interface: Emitter

Asynchronously emit a UpsertAspectRequest.

Specified by:

emit in interface Emitter

Parameters:

request - request with with metadata aspect to upsert into DataHub

Returns:

a Future for callers to inspect the result of the operation or block until one is available

Throws:

java.io.IOException

getKafkaConfgiProperties

public java.util.Properties getKafkaConfgiProperties()