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package com.paymentlink.util; |
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import java.security.SecureRandom; |
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import java.util.UUID; |
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public class IdGenerator { |
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private static final SecureRandom RANDOM = new SecureRandom(); |
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private static final String ALPHA_NUMERIC = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; |
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* Generate order ID in format: ORD-{timestamp}-{random} |
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*/ |
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public static String generateOrderId() { |
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long timestamp = System.currentTimeMillis(); |
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String randomPart = generateRandomString(6); |
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return String.format("ORD-%d-%s", timestamp, randomPart); |
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} |
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* Generate payment link ID (hex format, 32 characters) |
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*/ |
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public static String generatePaymentLinkId() { |
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return UUID.randomUUID().toString().replace("-", ""); |
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} |
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* Generate random alphanumeric string |
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*/ |
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private static String generateRandomString(int length) { |
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StringBuilder sb = new StringBuilder(length); |
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for (int i = 0; i < length; i++) { |
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sb.append(ALPHA_NUMERIC.charAt(RANDOM.nextInt(ALPHA_NUMERIC.length()))); |
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} |
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return sb.toString(); |
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} |
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} |
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