FoInstanceJsonTransform Class Reference

Transforms a DDS into JSON document on disk. More...

#include <FoInstanceJsonTransform.h>

Inheritance diagram for FoInstanceJsonTransform:

Collaboration diagram for FoInstanceJsonTransform:

Public Member Functions
virtual void	dump (std::ostream &strm) const
	dumps information about this transformation object for debugging purposes
	FoInstanceJsonTransform (libdap::DDS *dds)
	Constructor that creates transformation object from the specified DataDDS object to the specified file.
virtual void	transform (std::ostream &ostrm, bool sendData)
	Transforms the DDS object into a JSON instance object representation.

Detailed Description

Transforms a DDS into JSON document on disk.

Used to transform a DDS into an instance object representation (meta)data JSON document. The output is written to a local file whose name is passed as a parameter to the constructor.

Definition at line 54 of file FoInstanceJsonTransform.h.

Constructor & Destructor Documentation

FoInstanceJsonTransform()

FoInstanceJsonTransform::FoInstanceJsonTransform

(

libdap::DDS *

dds

)

Constructor that creates transformation object from the specified DataDDS object to the specified file.

Build a FoInstanceJsonTransform object.

Parameters

dds	DataDDS object that contains the data structure, attributes and data
dhi	The data interface containing information about the current request
localfile	The file to create and write the JSON document into.

Exceptions

BESInternalError

if dds provided is empty or not read, if the file is not specified or failed to create the netcdf file

Constructor that creates transformation object from the specified DataDDS object to the specified stream.

Using this constructor configures the Transform object to write directly to the DataHandlerInterface's output stream without using an intermediate file.

Parameters

dds
dhi
ostrm

Definition at line 226 of file FoInstanceJsonTransform.cc.

~FoInstanceJsonTransform()

virtual FoInstanceJsonTransform::~FoInstanceJsonTransform ( )

inlinevirtual

Definition at line 84 of file FoInstanceJsonTransform.h.

Member Function Documentation

dump()

void FoInstanceJsonTransform::dump ( std::ostream & strm ) const

virtual

dumps information about this transformation object for debugging purposes

Displays the pointer value of this instance plus instance data, including all of the FoJson objects converted from DAP objects that are to be sent to the JSON file.

Parameters

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

Implements BESObj.

Definition at line 240 of file FoInstanceJsonTransform.cc.

transform()

void FoInstanceJsonTransform::transform ( std::ostream & ostrm, bool sendData )

virtual

Transforms the DDS object into a JSON instance object representation.

Transforms the DDS and all of it's "projected" variables into a JSON document using an instance object representation.

Modified from the original so that the object can be built using either an output stream or a local temporary file. In the latter case it will open the file and write to it. The object's client sorts it out from there...

Parameters

sendData

If the sendData parameter is true data will be sent. If sendData is false then the metadata will be sent.

Definition at line 262 of file FoInstanceJsonTransform.cc.

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The documentation for this class was generated from the following files:

• FoInstanceJsonTransform.h
• FoInstanceJsonTransform.cc