de.unihalle.informatik.MiToBo.core.dataio.provider.cmdline

Class RandomGeneratorDataIOCmdline

java.lang.Object

de.unihalle.informatik.Alida.dataio.provider.cmdline.ALDStandardizedDataIOCmdline

de.unihalle.informatik.MiToBo.core.dataio.provider.cmdline.RandomGeneratorDataIOCmdline

All Implemented Interfaces:

de.unihalle.informatik.Alida.dataio.provider.ALDDataIO, de.unihalle.informatik.Alida.dataio.provider.ALDDataIOCmdline

@ALDDataIOProvider
public class RandomGeneratorDataIOCmdline
extends de.unihalle.informatik.Alida.dataio.provider.cmdline.ALDStandardizedDataIOCmdline

Data I/O provider for ALDOpRunner (commandline) for java.util.Random objects.

When a random generator is to be created from an input string, it is initialized with a seed if the string represents a Long integer. If the string cannot be parsed as Long, e.g. because it is not a numerical value, a random generator is created without seed.
When a random generator has to be written, i.e. it will be formated as string, that string represents the random generator's seed. Note that the current state of the random generator is not represented, i.e. if a new random generator is constructed from this string, it will share the same seed, but will have the initial state of the old random generator.

TODO: Consider serialization

Author:

Oliver Gress

Field Summary

Fields inherited from class de.unihalle.informatik.Alida.dataio.provider.cmdline.ALDStandardizedDataIOCmdline

DERIVEDCLASS_CHAR, FILEIO_CHAR

Constructor Summary

Constructors

Constructor and Description
RandomGeneratorDataIOCmdline()

Method Summary

Modifier and Type	Method and Description
String	formatAsString(Object obj) Get a string representing the seed of the specified Random generator.
Object	parse(Field field, Class<?> cl, String valueString) Convert a string to a Random generator.
Collection<Class<?>>	providedClasses()

Methods inherited from class de.unihalle.informatik.Alida.dataio.provider.cmdline.ALDStandardizedDataIOCmdline

formatAsString, readData, requiresNewlines, writeData

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomGeneratorDataIOCmdline

public RandomGeneratorDataIOCmdline()

Method Detail

providedClasses

public Collection<Class<?>> providedClasses()

parse

public Object parse(Field field,
                    Class<?> cl,
                    String valueString)
             throws de.unihalle.informatik.Alida.exceptions.ALDDataIOProviderException

Convert a string to a Random generator. If the string contains a Long integer, its value is used as seed of the Random generator. If the string cannot be parsed as Long, no seed is used to construct the Random generator.

Specified by:

parse in class de.unihalle.informatik.Alida.dataio.provider.cmdline.ALDStandardizedDataIOCmdline

Throws:

de.unihalle.informatik.Alida.exceptions.ALDDataIOProviderException

formatAsString

public String formatAsString(Object obj)
                      throws de.unihalle.informatik.Alida.exceptions.ALDDataIOProviderException

Get a string representing the seed of the specified Random generator.

Specified by:

formatAsString in class de.unihalle.informatik.Alida.dataio.provider.cmdline.ALDStandardizedDataIOCmdline

Throws:

de.unihalle.informatik.Alida.exceptions.ALDDataIOProviderException