Package org.wikidata.wdtk.examples

Class JsonSerializationProcessor

java.lang.Object

org.wikidata.wdtk.examples.JsonSerializationProcessor

All Implemented Interfaces:

EntityDocumentProcessor

public class JsonSerializationProcessor
extends Object
implements EntityDocumentProcessor

This example illustrates how to create a JSON serialization of some of the data found in a dump. It uses a DatamodelFilterto eliminate some of the data.

As an example, the program only serializes data for people who were born in Dresden, Germany. This can be changed by modifying the code in includeDocument(ItemDocument).

Author:

Markus Kroetzsch

Constructor Summary

Constructors

Constructor	Description
JsonSerializationProcessor()	Constructor.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the output.
static void	main(String[] args)	Runs the example program.
static void	printDocumentation()	Prints some basic documentation about this program.
void	processItemDocument(ItemDocument itemDocument)	Processes the given ItemDocument.
void	processPropertyDocument(PropertyDocument propertyDocument)	Processes the given PropertyDocument.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.wikidata.wdtk.datamodel.interfaces.EntityDocumentProcessor

processEntityRedirectDocument, processLexemeDocument, processMediaInfoDocument

Constructor Details

JsonSerializationProcessor

public JsonSerializationProcessor()
                           throws IOException

Constructor. Initializes various helper objects we use for the JSON serialization, and opens the file that we want to write to.

Throws:

IOException - if there is a problem opening the output file

Method Details

main

public static void main(String[] args)
                 throws IOException

Runs the example program.

Parameters:

args -

Throws:

IOException - if there was a problem in writing the output file

processItemDocument

public void processItemDocument(ItemDocument itemDocument)

Description copied from interface: EntityDocumentProcessor

Processes the given ItemDocument.

Specified by:

processItemDocument in interface EntityDocumentProcessor

Parameters:

itemDocument - the ItemDocument

processPropertyDocument

public void processPropertyDocument(PropertyDocument propertyDocument)

Description copied from interface: EntityDocumentProcessor

Processes the given PropertyDocument.

Specified by:

processPropertyDocument in interface EntityDocumentProcessor

Parameters:

propertyDocument - the PropertyDocument

printDocumentation

public static void printDocumentation()

Prints some basic documentation about this program.

close

public void close()

Closes the output. Should be called after the JSON serialization was finished.