io.cdap.wrangler.service.kafka

Class KafkaHandler

java.lang.Object

io.cdap.cdap.internal.api.AbstractProgramDatasetConfigurable<T>

io.cdap.cdap.internal.api.AbstractPluginConfigurable<V>

io.cdap.cdap.api.service.http.AbstractHttpServiceHandler<io.cdap.cdap.api.service.http.SystemHttpServiceContext,io.cdap.cdap.api.service.http.SystemHttpServiceConfigurer>

io.cdap.cdap.api.service.http.AbstractSystemHttpServiceHandler

io.cdap.wrangler.service.common.AbstractWranglerHandler

io.cdap.wrangler.service.kafka.KafkaHandler

All Implemented Interfaces:

io.cdap.cdap.api.ProgramLifecycle<io.cdap.cdap.api.service.http.SystemHttpServiceContext>, io.cdap.cdap.api.service.http.HttpServiceHandler<io.cdap.cdap.api.service.http.SystemHttpServiceContext,io.cdap.cdap.api.service.http.SystemHttpServiceConfigurer>

public final class KafkaHandler
extends AbstractWranglerHandler

Service for handling Kafka connections.

Nested Class Summary

Nested classes/interfaces inherited from class io.cdap.wrangler.service.common.AbstractWranglerHandler

AbstractWranglerHandler.NamespacedResponder<T>

Constructor Summary

Constructors

Constructor and Description
KafkaHandler()

Method Summary

Modifier and Type	Method and Description
void	list(io.cdap.cdap.api.service.http.HttpServiceRequest request, io.cdap.cdap.api.service.http.HttpServiceResponder responder, String namespace) List all kafka topics.
void	read(io.cdap.cdap.api.service.http.HttpServiceRequest request, io.cdap.cdap.api.service.http.HttpServiceResponder responder, String namespace, String id, String topic, int lines, String scope) Reads a kafka topic into workspace.
void	specification(io.cdap.cdap.api.service.http.HttpServiceRequest request, io.cdap.cdap.api.service.http.HttpServiceResponder responder, String namespace, String id, String topic) Specification for the source.
void	test(io.cdap.cdap.api.service.http.HttpServiceRequest request, io.cdap.cdap.api.service.http.HttpServiceResponder responder, String namespace)

Methods inherited from class io.cdap.wrangler.service.common.AbstractWranglerHandler

getConnection, getValidatedConnection, getValidatedConnection, getWorkspace, respond, respond, shouldCopyHeader

Methods inherited from class io.cdap.cdap.api.service.http.AbstractSystemHttpServiceHandler

createTable

Methods inherited from class io.cdap.cdap.api.service.http.AbstractHttpServiceHandler

configure, configure, destroy, getConfigurer, getContext, initialize, setProperties

Methods inherited from class io.cdap.cdap.internal.api.AbstractPluginConfigurable

usePlugin, usePlugin, usePluginClass, usePluginClass

Methods inherited from class io.cdap.cdap.internal.api.AbstractProgramDatasetConfigurable

addDatasetModule, addDatasetType, createDataset, createDataset, createDataset, createDataset

Methods inherited from class java.lang.Object

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

Constructor Detail

KafkaHandler

public KafkaHandler()

Method Detail

test

@POST
 @Path(value="contexts/{context}/connections/kafka/test")
public void test(io.cdap.cdap.api.service.http.HttpServiceRequest request,
                                                                                 io.cdap.cdap.api.service.http.HttpServiceResponder responder,
                                                                                 @PathParam(value="context")
                                                                                 String namespace)

list

@POST
 @Path(value="contexts/{context}/connections/kafka")
public void list(io.cdap.cdap.api.service.http.HttpServiceRequest request,
                                                                            io.cdap.cdap.api.service.http.HttpServiceResponder responder,
                                                                            @PathParam(value="context")
                                                                            String namespace)

List all kafka topics.

Parameters:

request - HTTP requests handler.

responder - HTTP response handler.

read

@GET
 @Path(value="contexts/{context}/connections/{id}/kafka/{topic}/read")
public void read(io.cdap.cdap.api.service.http.HttpServiceRequest request,
                                                                                             io.cdap.cdap.api.service.http.HttpServiceResponder responder,
                                                                                             @PathParam(value="context")
                                                                                             String namespace,
                                                                                             @PathParam(value="id")
                                                                                             String id,
                                                                                             @PathParam(value="topic")
                                                                                             String topic,
                                                                                             @QueryParam(value="lines")
                                                                                             int lines,
                                                                                             @QueryParam(value="scope") @DefaultValue(value="default")
                                                                                             String scope)

Reads a kafka topic into workspace.

Parameters:

request - HTTP requests handler.

responder - HTTP response handler.

id - Connection id for which the tables need to be listed from database.

specification

@GET
 @Path(value="contexts/{context}/connections/{id}/kafka/{topic}/specification")
public void specification(io.cdap.cdap.api.service.http.HttpServiceRequest request,
                                                                                                               io.cdap.cdap.api.service.http.HttpServiceResponder responder,
                                                                                                               @PathParam(value="context")
                                                                                                               String namespace,
                                                                                                               @PathParam(value="id")
                                                                                                               String id,
                                                                                                               @PathParam(value="topic")
                                                                                                               String topic)

Specification for the source.

Parameters:

request - HTTP request handler.

responder - HTTP response handler.

id - of the connection.

topic - for which the specification need to be generated.