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Diffstat (limited to 'packages/taler-wallet-cli/src/benchMerchantIDGenerator.ts')
-rw-r--r-- | packages/taler-wallet-cli/src/benchMerchantIDGenerator.ts | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/packages/taler-wallet-cli/src/benchMerchantIDGenerator.ts b/packages/taler-wallet-cli/src/benchMerchantIDGenerator.ts deleted file mode 100644 index b83c12bb8..000000000 --- a/packages/taler-wallet-cli/src/benchMerchantIDGenerator.ts +++ /dev/null @@ -1,83 +0,0 @@ -/* - This file is part of GNU Taler - (C) 2022 Taler Systems S.A. - - GNU Taler is free software; you can redistribute it and/or modify it under the - terms of the GNU General Public License as published by the Free Software - Foundation; either version 3, or (at your option) any later version. - - GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - A PARTICULAR PURPOSE. See the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along with - GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> - - @author: Boss Marco - */ - -const getRandomInt = function(max: number) { - return Math.floor(Math.random() * max); -} - -abstract class BenchMerchantIDGenerator { - abstract getRandomMerchantID(): number -} - -class ZipfGenerator extends BenchMerchantIDGenerator { - - weights: number[]; - total_weight: number; - - constructor(numMerchants: number) { - super(); - this.weights = new Array<number>(numMerchants); - for (var i = 0; i < this.weights.length; i++) { - /* we use integers (floor), make sure we have big enough values - * by multiplying with - * numMerchants again */ - this.weights[i] = Math.floor((numMerchants/(i+1)) * numMerchants); - } - this.total_weight = this.weights.reduce((p, n) => p + n); - } - - getRandomMerchantID(): number { - let random = getRandomInt(this.total_weight); - let current = 0; - - for (var i = 0; i < this.weights.length; i++) { - current += this.weights[i]; - if (random <= current) { - return i+1; - } - } - - /* should never come here */ - return getRandomInt(this.weights.length); - } -} - -class RandomGenerator extends BenchMerchantIDGenerator { - - max: number - - constructor(numMerchants: number) { - super(); - this.max = numMerchants - } - - getRandomMerchantID() { - return getRandomInt(this.max); - } -} - -export default function(type: string, maxID: number): BenchMerchantIDGenerator { - switch (type) { - case "zipf": - return new ZipfGenerator(maxID); - case "rand": - return new RandomGenerator(maxID); - default: - throw new Error("Valid types are 'zipf' and 'rand'"); - } -} |