Package com.digitizer.io

Class JsonExporter

java.lang.Object

com.digitizer.io.JsonExporter

public class JsonExporter
extends Object

Handles JSON import and export of graph digitizer projects.

The JSON format contains project metadata (title and axis labels), calibration settings (numeric ranges and log flags) and the complete list of datasets and their points. The export path is compatible with the ProjectJson model.

Method Summary

Modifier and Type	Method	Description
static List<Dataset>	convertJsonToDatasets(ProjectJson project, CalibrationState calibration)	Converts imported JSON data back into application objects.
static void	exportToJson(String filePath, String title, String xlabel, String ylabel, CalibrationState calibration, List<Dataset> datasets)	Exports project data to a JSON file.
static ProjectJson	importFromJson(String filePath)	Imports project data from a JSON file.

Methods inherited from class java.lang.Object

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

Method Details

exportToJson

public static void exportToJson(String filePath,
 String title,
 String xlabel,
 String ylabel,
 CalibrationState calibration,
 List<Dataset> datasets)
                         throws IOException

Exports project data to a JSON file.

Parameters:

filePath - the path where the JSON file will be written

title - the project title

xlabel - the x-axis label

ylabel - the y-axis label

calibration - the calibration state (may be null; defaults applied if null)

datasets - the list of datasets to export

Throws:

IOException - if writing to the file fails

importFromJson

public static ProjectJson importFromJson(String filePath)
                                  throws IOException

Imports project data from a JSON file.

Parameters:

filePath - the path to the JSON file to read

Returns:

a ProjectJson object containing the imported data

Throws:

IOException - if reading from the file fails

com.google.gson.JsonSyntaxException - if the JSON is malformed

convertJsonToDatasets

public static List<Dataset> convertJsonToDatasets(ProjectJson project,
 CalibrationState calibration)

Converts imported JSON data back into application objects.

Parameters:

project - the ProjectJson object imported from file

calibration - the CalibrationState to populate

Returns:

a list of Dataset objects