Welcome to conversion tools of German National Library (Deutsche Nationalbibliothek).
This Java Code Library offers two ways of using the implemented conversion mechanisms:
1. Command line tools (meant to be)
2. Using the provided conversion context
1. Command Line
There are three command line tools to choose from.
To invoke any of these you have to type the following command (the part in brackets needs to be replaced appropriate):
java -jar [jar file] -help
This will print an overview of the mandatory/possible parameters to start any conversion.
To start a conversion simple type this:
java -jar [jar file] -i [input file] -o [output file]
2. Conversion Context
The conversion context can be found in de.dNb.conversion.context package.
This is a facility to obtain a converter by passing appropriate parameters.
The conversion context returns a converter specific to the passed parameters.
The parameters that define a conversion pattern are:
- input format
- input encoding
- output format
- output encoding
A converter can be placed in the conversion context by specifying these four parameters
and can be retrieved by querying the conversion context and specifying this information again.
The basic classes are in the package de.dNb.conversion and de.dNb.conversion.context.
A converter is declared by the interface de.dNb.conversion.Converter.
An abstract implementation derived from that interface has to be used by any implementing converter.
Further there are three specialized child classes to server three basic purposes:
The first one is used to handle binary streams coming from a OCLC server side Format Conversion (FCV). (No subclassing expected)
The second is used to handle character streams.
And the third wires two converters together by passing the output of the first as input to the second.
The class hierarchy is this:
Any Converter implementation should be derived from GenericConverter (or CharstreamConverter if needed).
The conversion context is currently initialized by an xml based configuration file.
The according schema can be found under de.dNb.conversion.context.resource.
PicaToRdfBasisConverter and RdfEnricher
following additional files are required: