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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.eventmesh.common.utils;

import org.apache.commons.text.RandomStringGenerator;

import java.util.UUID;
import java.util.concurrent.ThreadLocalRandom;

public class RandomStringUtils {

    private static final RandomStringGenerator RANDOM_NUM_GENERATOR = new RandomStringGenerator.Builder().withinRange('0', '9').build();

    public static String generateNum(int length) {
        return RANDOM_NUM_GENERATOR.generate(length);
    }

    public static String generateUUID() {
        return new UUID(ThreadLocalRandom.current().nextLong(), ThreadLocalRandom.current().nextLong()).toString();
    }

}