Package org.openrefine.importers

Class LegacyProjectImporter

java.lang.Object

org.openrefine.importers.ImportingParserBase

org.openrefine.importers.InputStreamImporter

org.openrefine.importers.LegacyProjectImporter

All Implemented Interfaces:

ImportingParser

public class LegacyProjectImporter
extends InputStreamImporter

Imports an OpenRefine project from a 3.x project archive.

Author:

Antonin Delpeuch

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	LegacyProjectImporter.SerializedCell	Helper class to deserialize a cell as serialized by OpenRefine up to 3.x.
protected static class	LegacyProjectImporter.SerializedRow	Legacy serialized version of a row, only used to read old projects.

Constructor Summary

Constructors

Constructor	Description
LegacyProjectImporter()

Method Summary

Modifier and Type	Method	Description
protected ColumnModel	loadColumnModel(LineNumberReader reader)
protected void	loadGrid(LineNumberReader reader, List<LegacyProjectImporter.SerializedRow> grid)
protected void	loadPool(LineNumberReader reader, Map<Long,Recon> pool)
Grid	parseOneFile(Runner runner, ProjectMetadata metadata, ImportingJob job, String fileSource, String archiveFileName, Supplier<InputStream> inputStreamSupplier, long limit, com.fasterxml.jackson.databind.node.ObjectNode options)	Parses one file, read from an InputStream object, into a Grid.
protected void	skipHistory(LineNumberReader reader)

Methods inherited from class org.openrefine.importers.ImportingParserBase

createParserUIInitializationData, parse, parseOneFile

Methods inherited from class java.lang.Object

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

Constructor Detail

LegacyProjectImporter

public LegacyProjectImporter()

Method Detail

parseOneFile

public Grid parseOneFile(Runner runner,
                         ProjectMetadata metadata,
                         ImportingJob job,
                         String fileSource,
                         String archiveFileName,
                         Supplier<InputStream> inputStreamSupplier,
                         long limit,
                         com.fasterxml.jackson.databind.node.ObjectNode options)
                  throws Exception

Description copied from class: InputStreamImporter

Parses one file, read from an InputStream object, into a Grid.

Specified by:

parseOneFile in class InputStreamImporter

Parameters:

runner - the runner to use (the returned Grid will be generated by it)

metadata - the project metadata associated with the project to parse (which can be modified by the importer)

job - the importing job where this import is being done

fileSource - the path or source of the file (could be "clipboard" or a URL as well)

archiveFileName - the path or source of the archive which contained this file

inputStreamSupplier - the input stream where to read the data from

limit - the maximum number of rows to read

options - any options passed to the importer as a JSON payload

Returns:

a parsed Grid

Throws:

Exception

loadColumnModel

protected ColumnModel loadColumnModel(LineNumberReader reader)
                               throws IOException

Throws:

IOException

skipHistory

protected void skipHistory(LineNumberReader reader)
                    throws IOException

Throws:

IOException

loadPool

protected void loadPool(LineNumberReader reader,
                        Map<Long,Recon> pool)
                 throws IOException

Throws:

IOException

loadGrid

protected void loadGrid(LineNumberReader reader,
                        List<LegacyProjectImporter.SerializedRow> grid)