inviwo::JSONDataFrameReader Class Reference

#include <jsonreader.h>

Inheritance diagram for inviwo::JSONDataFrameReader:

Public Member Functions
	JSONDataFrameReader (const JSONDataFrameReader &)=default
	JSONDataFrameReader (JSONDataFrameReader &&) noexcept=default
JSONDataFrameReader &	operator= (const JSONDataFrameReader &)=default
JSONDataFrameReader &	operator= (JSONDataFrameReader &&) noexcept=default
virtual JSONDataFrameReader *	clone () const override
virtual std::shared_ptr< DataFrame >	readData (const std::string &fileName) override
std::shared_ptr< DataFrame >	readData (std::istream &stream) const
Public Member Functions inherited from inviwo::DataReaderType< DataFrame >
	DataReaderType (const DataReaderType &rhs)=default
	DataReaderType (DataReaderType &&rhs) noexcept=default
DataReaderType &	operator= (const DataReaderType &that)=default
DataReaderType &	operator= (DataReaderType &&that) noexcept=default
virtual std::shared_ptr< DataFrame >	readData (const std::string &filePath, MetaDataOwner *)
Public Member Functions inherited from inviwo::DataReader
	DataReader (const DataReader &rhs)=default
	DataReader (DataReader &&rhs) noexcept=default
DataReader &	operator= (const DataReader &that)=default
DataReader &	operator= (DataReader &&that) noexcept=default
const std::vector< FileExtension > &	getExtensions () const
void	addExtension (FileExtension ext)

Detailed Description

Reads a json file into DataFrame Expects object layout: [ {"Col1": val11, "Col2": val12 }, {"Col1": val21, "Col2": val22 } ] The example above contains two rows and two columns.

Member Function Documentation

readData() [1/2]

std::shared_ptr< DataFrame > inviwo::JSONDataFrameReader::readData ( const std::string &  fileName )

overridevirtual

read a JSON file from a file Expects object layout: [ {"Col1": val11, "Col2": val12 }, {"Col1": val21, "Col2": val22 } ] The example above contains two rows and two columns.

Parameters

fileName

name of the input file

Returns

a DataFrame containing the JSON data

Exceptions

FileException

if the file cannot be accessed

Implements inviwo::DataReaderType< DataFrame >.

readData() [2/2]

std::shared_ptr< DataFrame > inviwo::JSONDataFrameReader::readData

(

std::istream &

stream

)

const

read DataFrame from a JSON-encoded input stream, e.g. a std::ifstream. In case file streams are used, the file must have be opened prior calling this function. Expects object layout: [ {"Col1": val11, "Col2": val12 }, {"Col1": val21, "Col2": val22 } ] The example above contains two rows and two columns.

Parameters

stream

input stream with the json data

Returns

a DataFrame containing the data

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

• jsonreader.h
• jsonreader.cpp