org.cocome.tradingsystem.systests.util
Class ProductGenerator

java.lang.Object
  org.cocome.tradingsystem.systests.util.ProductGenerator

public class ProductGenerator
extends java.lang.Object

This class is used to generate random but reproducable products.

Version:

$Rev: 60 $

Author:

Benjamin Hummel, Christian Pfaller, $Author: pfaller $

Field Summary

private static java.lang.String	ALPHA Available alphabet for product name generation.
private IEnterprise	enterprise The enterprise used for creating products.
private java.util.List<GeneratedProduct>	generatedProducts A list of all products generated so far.
private java.util.Random	rng The random number generator used.
private java.util.Set<java.lang.Integer>	usedBarcodes The set of used barcodes to avoid repetition.
private java.util.Set<java.lang.String>	usedNames The set of used names to avoid repetition.

Constructor Summary

ProductGenerator(long randomSeed, IEnterprise enterprise)
Construct a new product generator.

Method Summary

int	generate() Generate a single random product.
void	generate(int n) Generate the given number of random products.
GeneratedProduct	getGeneratedProduct(int i) Returns the product generated when i products had been generated already.
int	getNumberOfProducts() Returns the number of products generated so far.
int	getUnusedBarcode() Returns a new barcode which is not already used for any product.

Methods inherited from class java.lang.Object

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

Field Detail

ALPHA

private static final java.lang.String ALPHA

Available alphabet for product name generation.

See Also:

Constant Field Values

rng

private final java.util.Random rng

The random number generator used.

enterprise

private final IEnterprise enterprise

The enterprise used for creating products.

usedBarcodes

private final java.util.Set<java.lang.Integer> usedBarcodes

The set of used barcodes to avoid repetition.

usedNames

private final java.util.Set<java.lang.String> usedNames

The set of used names to avoid repetition.

generatedProducts

private final java.util.List<GeneratedProduct> generatedProducts

A list of all products generated so far.

Constructor Detail

ProductGenerator

public ProductGenerator(long randomSeed,
                        IEnterprise enterprise)

Construct a new product generator.

Parameters:

randomSeed - the random seed used for initializing the random number generator.

enterprise - the enterprise used for creating products.

Method Detail

getNumberOfProducts

public int getNumberOfProducts()

Returns the number of products generated so far.

getGeneratedProduct

public GeneratedProduct getGeneratedProduct(int i)

Returns the product generated when i products had been generated already.

generate

public void generate(int n)
              throws java.lang.Exception

Generate the given number of random products.

Throws:

java.lang.Exception

generate

public int generate()
             throws java.lang.Exception

Generate a single random product.

Returns:

index of new product

Throws:

java.lang.Exception

getUnusedBarcode

public int getUnusedBarcode()

Returns a new barcode which is not already used for any product.