Package org.apache.druid.java.util.http.client.response

Class ObjectOrErrorResponseHandler<IntermediateType,FinalType>

java.lang.Object

org.apache.druid.java.util.http.client.response.ObjectOrErrorResponseHandler<IntermediateType,FinalType>

All Implemented Interfaces:

HttpResponseHandler<Either<StringFullResponseHolder,IntermediateType>,Either<StringFullResponseHolder,FinalType>>

public class ObjectOrErrorResponseHandler<IntermediateType,FinalType>
extends Object
implements HttpResponseHandler<Either<StringFullResponseHolder,IntermediateType>,Either<StringFullResponseHolder,FinalType>>

Response handler that delegates successful responses (2xx response codes) to some other handler, but returns errors (non-2xx response codes) as Strings. The return value is an Either.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.druid.java.util.http.client.response.HttpResponseHandler

HttpResponseHandler.TrafficCop

Constructor Summary

Constructors

Constructor	Description
ObjectOrErrorResponseHandler(HttpResponseHandler<IntermediateType,FinalType> okHandler)

Method Summary

Modifier and Type	Method	Description
ClientResponse<Either<StringFullResponseHolder,FinalType>>	done(ClientResponse<Either<StringFullResponseHolder,IntermediateType>> clientResponse)	Called after the final handleResponse() or handleChunk() call, signifying that no more data will arrive.
void	exceptionCaught(ClientResponse<Either<StringFullResponseHolder,IntermediateType>> clientResponse, Throwable e)
ClientResponse<Either<StringFullResponseHolder,IntermediateType>>	handleChunk(ClientResponse<Either<StringFullResponseHolder,IntermediateType>> clientResponse, org.jboss.netty.handler.codec.http.HttpChunk chunk, long chunkNum)	Called for chunked responses, indicating another HttpChunk has arrived.
ClientResponse<Either<StringFullResponseHolder,IntermediateType>>	handleResponse(org.jboss.netty.handler.codec.http.HttpResponse response, HttpResponseHandler.TrafficCop trafficCop)	Handles the initial HttpResponse object that comes back from Netty.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectOrErrorResponseHandler

public ObjectOrErrorResponseHandler(HttpResponseHandler<IntermediateType,FinalType> okHandler)

Method Detail

handleResponse

public ClientResponse<Either<StringFullResponseHolder,IntermediateType>> handleResponse(org.jboss.netty.handler.codec.http.HttpResponse response,
                                                                                              HttpResponseHandler.TrafficCop trafficCop)

Description copied from interface: HttpResponseHandler

Handles the initial HttpResponse object that comes back from Netty.

Specified by:

handleResponse in interface HttpResponseHandler<IntermediateType,FinalType>

Parameters:

response - response from Netty

trafficCop - flow controller, allows resuming suspended reads

Returns:

response that may be "finished" or "unfinished".

handleChunk

public ClientResponse<Either<StringFullResponseHolder,IntermediateType>> handleChunk(ClientResponse<Either<StringFullResponseHolder,IntermediateType>> clientResponse,
                                                                                           org.jboss.netty.handler.codec.http.HttpChunk chunk,
                                                                                           long chunkNum)

Description copied from interface: HttpResponseHandler

Called for chunked responses, indicating another HttpChunk has arrived.

Specified by:

handleChunk in interface HttpResponseHandler<IntermediateType,FinalType>

Parameters:

clientResponse - last response returned by the prior handleResponse() or handleChunk()

chunk - the new chunk of data

chunkNum - the sequence number of this chunk (increases monotonically)

Returns:

response that may be "finished" or "unfinished".

done

public ClientResponse<Either<StringFullResponseHolder,FinalType>> done(ClientResponse<Either<StringFullResponseHolder,IntermediateType>> clientResponse)

Description copied from interface: HttpResponseHandler

Called after the final handleResponse() or handleChunk() call, signifying that no more data will arrive.

Specified by:

done in interface HttpResponseHandler<IntermediateType,FinalType>

Parameters:

clientResponse - last response returned by handleResponse() or handleChunk()

Returns:

response containing an object to hand back to the caller. It must be a "finished" response.

exceptionCaught

public void exceptionCaught(ClientResponse<Either<StringFullResponseHolder,IntermediateType>> clientResponse,
                            Throwable e)

Specified by:

exceptionCaught in interface HttpResponseHandler<IntermediateType,FinalType>