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/* |
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* This file is part of Araknemu. |
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* |
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* Araknemu is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* Araknemu is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with Araknemu. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* Copyright (c) 2017-2019 Vincent Quatrevieux |
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*/ |
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package fr.quatrevieux.araknemu.util; |
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import org.checkerframework.checker.index.qual.NonNegative; |
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import org.checkerframework.common.value.qual.MinLen; |
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import java.util.Random; |
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/** |
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* Random generation for strings |
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*/ |
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public final class RandomStringUtil { |
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private final Random random; |
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private final @MinLen(1) String charset; |
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/** |
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* Create instance |
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* @param random The random generator instance |
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* @param charset The charset to use |
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*/ |
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public RandomStringUtil(Random random, @MinLen(1) String charset) { |
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1 |
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this.random = random; |
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1 |
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this.charset = charset; |
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1 |
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} |
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/** |
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* Generate the random string |
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* |
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* @param length The required string length |
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*/ |
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public String generate(@NonNegative int length) { |
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final char[] buffer = new char[length]; |
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for (int i = 0; i < length; ++i) { |
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1 |
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buffer[i] = charset.charAt(random.nextInt(charset.length())); |
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} |
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return new String(buffer); |
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} |
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} |
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Arakne /
Araknemu
