com.franz.agraph.http.handler

Class AGRawStreamer

java.lang.Object

com.franz.agraph.http.handler.AGResponseHandler

com.franz.agraph.http.handler.AGRawStreamer

public class AGRawStreamer
extends AGResponseHandler

A handler that allows access to raw response stream.

Constructor Summary

Constructors

Constructor and Description
AGRawStreamer() Creates a streaming handler that does not specify the MIME type.
AGRawStreamer(BooleanQueryResultFormat format) Creates a streaming handler that requests results in specified boolean format.
AGRawStreamer(RDFFormat format) Creates a streaming handler that requests results in specified RDF format.
AGRawStreamer(String mimeType) Creates a streaming handler.
AGRawStreamer(TupleQueryResultFormat format) Creates a streaming handler that requests results in specified tuple format.

Method Summary

Modifier and Type	Method and Description
InputStream	getStream() Gets the data stream contaning the server's response.
void	handleResponse(org.apache.http.HttpResponse httpResponse, org.apache.http.client.methods.HttpUriRequest httpUriRequest)
boolean	releaseConnection() For most responses, AGHTTPClient releases resources after calling AGResponseHandler.handleResponse(HttpResponse, HttpUriRequest); this can be overridden in subclasses that stream results.

Methods inherited from class com.franz.agraph.http.handler.AGResponseHandler

getRequestMIMEType

Methods inherited from class java.lang.Object

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

Constructor Detail

AGRawStreamer

public AGRawStreamer(String mimeType)

Creates a streaming handler.

Parameters:

mimeType - MIME type to be requested from the server.

AGRawStreamer

public AGRawStreamer()

Creates a streaming handler that does not specify the MIME type.

The server is free to return any content type.

AGRawStreamer

public AGRawStreamer(RDFFormat format)

Creates a streaming handler that requests results in specified RDF format.

Parameters:

format - Format to return the data in.

AGRawStreamer

public AGRawStreamer(TupleQueryResultFormat format)

Creates a streaming handler that requests results in specified tuple format.

Parameters:

format - Format to return the data in.

AGRawStreamer

public AGRawStreamer(BooleanQueryResultFormat format)

Creates a streaming handler that requests results in specified boolean format.

Parameters:

format - Format to return the data in.

Method Detail

getStream

public InputStream getStream()
                      throws AGHttpException

Gets the data stream contaning the server's response.

Returns:

An input stream. It must be closed by the caller.

Throws:

AGHttpException - if an error happens when decoding the response (e.g. if the server sent an invalid GZIP stream).

handleResponse

public void handleResponse(org.apache.http.HttpResponse httpResponse,
                           org.apache.http.client.methods.HttpUriRequest httpUriRequest)
                    throws IOException,
                           AGHttpException

Specified by:

handleResponse in class AGResponseHandler

Throws:

IOException

AGHttpException

releaseConnection

public boolean releaseConnection()

Description copied from class: AGResponseHandler

For most responses, AGHTTPClient releases resources after calling AGResponseHandler.handleResponse(HttpResponse, HttpUriRequest); this can be overridden in subclasses that stream results.

Overrides:

releaseConnection in class AGResponseHandler

Returns:

Boolean always returns true