BESTransmitter class named "json" that transmits an OPeNDAP data object as a JSON file. More...

#include <W10nJsonTransmitter.h>

Inheritance diagram for W10nJsonTransmitter:

Collaboration diagram for W10nJsonTransmitter:

Public Member Functions
virtual bool	add_method (string method_name, p_transmitter trans_method)

virtual void	dump (ostream &strm) const
	dumps information about this object More...

virtual p_transmitter	find_method (string method_name)

virtual bool	remove_method (string method_name)

virtual void	send_html (BESInfo &info, BESDataHandlerInterface &dhi)

virtual void	send_response (const string &method, BESResponseObject *obj, BESDataHandlerInterface &dhi)

virtual void	send_text (BESInfo &info, BESDataHandlerInterface &dhi)

	W10nJsonTransmitter ()
	Construct the W10nJsonTransmitter. More...

virtual	~W10nJsonTransmitter ()

Static Public Member Functions
static void	send_data (BESResponseObject *obj, BESDataHandlerInterface &dhi)
	The static method registered to transmit OPeNDAP data objects as a JSON file. More...

static void	send_metadata (BESResponseObject *obj, BESDataHandlerInterface &dhi)
	The static method registered to transmit OPeNDAP data objects as a JSON file. More...

Detailed Description

BESTransmitter class named "json" that transmits an OPeNDAP data object as a JSON file.

The FoW10JsonTransmitter transforms an OPeNDAP DataDDS object into a JSON file and streams the new (temporary) JSON file back to the client.

See also: BESBasicTransmitter

Definition at line 52 of file W10nJsonTransmitter.h.

Constructor & Destructor Documentation

W10nJsonTransmitter::W10nJsonTransmitter ( )

Construct the W10nJsonTransmitter.

The transmitter is created to add the ability to return OPeNDAP data objects (DataDDS) as abstract object representation JSON documents.

The OPeNDAP data object is written to a JSON file locally in a temporary directory specified by the BES configuration parameter FoJson.Tempdir. If this variable is not found or is not set then it defaults to the macro definition FO_JSON_TEMP_DIR.

Definition at line 84 of file W10nJsonTransmitter.cc.

References BESTransmitter::add_method(), DATA_SERVICE, DDX_SERVICE, BESKeys::get_value(), send_data(), send_metadata(), TheBESKeys::TheKeys(), and W10N_JSON_TEMP_DIR.

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virtual W10nJsonTransmitter::~W10nJsonTransmitter ( )

inlinevirtual

Definition at line 63 of file W10nJsonTransmitter.h.

Member Function Documentation

bool BESTransmitter::add_method	(	string	method_name,
		p_transmitter	trans_method
	)

virtualinherited

Definition at line 36 of file BESTransmitter.cc.

Referenced by BESAsciiTransmit::BESAsciiTransmit(), BESDapTransmit::BESDapTransmit(), FoDapJsonTransmitter::FoDapJsonTransmitter(), FoInstanceJsonTransmitter::FoInstanceJsonTransmitter(), FONcTransmitter::FONcTransmitter(), GeoTiffTransmitter::GeoTiffTransmitter(), BESXDModule::initialize(), BESWWWModule::initialize(), BESUsageModule::initialize(), JPEG2000Transmitter::JPEG2000Transmitter(), and W10nJsonTransmitter().

void BESBasicTransmitter::dump ( ostream & strm ) const

virtualinherited

dumps information about this object

Displays the pointer value of this instance

Parameters

strm	C++ i/o stream to dump the information to

Reimplemented from BESTransmitter.

Reimplemented in BESBasicHttpTransmitter.

Definition at line 72 of file BESBasicTransmitter.cc.

References BESTransmitter::dump(), BESIndent::Indent(), BESIndent::LMarg(), and BESIndent::UnIndent().

Referenced by BESBasicHttpTransmitter::dump().

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p_transmitter BESTransmitter::find_method ( string method_name )

virtualinherited

Definition at line 58 of file BESTransmitter.cc.

Referenced by BESTransmitter::send_response().

bool BESTransmitter::remove_method ( string method_name )

virtualinherited

Definition at line 47 of file BESTransmitter.cc.

Referenced by BESXDModule::terminate(), BESUsageModule::terminate(), BESWWWModule::terminate(), and BESDapTransmit::~BESDapTransmit().

void W10nJsonTransmitter::send_data	(	BESResponseObject *	obj,
		BESDataHandlerInterface &	dhi
	)

static

The static method registered to transmit OPeNDAP data objects as a JSON file.

This function takes the OPeNDAP DataDDS object, reads in the data (can be used with any data handler), transforms the data into a JSON file, and streams back that JSON file back to the requester using the stream specified in the BESDataHandlerInterface.

Parameters

obj	The BESResponseObject containing the OPeNDAP DataDDS object
dhi	BESDataHandlerInterface containing information about the request and response

Exceptions

BESInternalError if the response is not an OPeNDAP DataDDS or if there are any problems reading the data, writing to a JSON file, or streaming the JSON file

Definition at line 179 of file W10nJsonTransmitter.cc.

References BESDEBUG, w10n::checkConstrainedDDSForW10nDataCompatibility(), BESDataHandlerInterface::data, BESDataDDSResponse::get_ce(), BESDataDDSResponse::get_dds(), BESError::get_message(), BESDataHandlerInterface::get_output_stream(), POST_CONSTRAINT, BESDataDDSResponse::set_dds(), and W10N_DEBUG_KEY.

Referenced by W10nJsonTransmitter().

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void BESBasicTransmitter::send_html	(	BESInfo &	info,
		BESDataHandlerInterface &	dhi
	)

virtualinherited

Implements BESTransmitter.

Reimplemented in BESBasicHttpTransmitter.

Definition at line 53 of file BESBasicTransmitter.cc.

References BESContextManager::get_context(), BESDataHandlerInterface::get_output_stream(), BESInfo::is_buffered(), BESInfo::print(), BESUtil::set_mime_html(), and BESContextManager::TheManager().

Referenced by BESBasicHttpTransmitter::send_html().

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void W10nJsonTransmitter::send_metadata	(	BESResponseObject *	obj,
		BESDataHandlerInterface &	dhi
	)

static

The static method registered to transmit OPeNDAP data objects as a JSON file.

This function takes the OPeNDAP DataDDS object, reads in the data (can be used with any data handler), transforms the data into a JSON file, and streams back that JSON file back to the requester using the stream specified in the BESDataHandlerInterface.

Parameters

obj	The BESResponseObject containing the OPeNDAP DataDDS object
dhi	BESDataHandlerInterface containing information about the request and response

Exceptions

BESInternalError if the response is not an OPeNDAP DataDDS or if there are any problems reading the data, writing to a JSON file, or streaming the JSON file

Definition at line 309 of file W10nJsonTransmitter.cc.

References BESDEBUG, BESDataHandlerInterface::data, BESDDSResponse::get_ce(), BESDDSResponse::get_dds(), BESDataHandlerInterface::get_output_stream(), POST_CONSTRAINT, and W10N_DEBUG_KEY.

Referenced by W10nJsonTransmitter().

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