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Base36EncodedOrderNumberGenerator.java
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Base36EncodedOrderNumberGenerator.java
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/*
* This program is part of the OpenLMIS logistics management information system platform software.
* Copyright © 2017 VillageReach
*
* This program is free software: you can redistribute it and/or modify it under the terms
* of the GNU Affero General Public License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details. You should have received a copy of
* the GNU Affero General Public License along with this program. If not, see
* http://www.gnu.org/licenses. For additional information contact info@OpenLMIS.org.
*/
package org.openlmis.fulfillment.domain;
import java.math.BigInteger;
import java.util.UUID;
import org.openlmis.fulfillment.extension.point.OrderNumberGenerator;
import org.springframework.stereotype.Component;
/**
* A default implementation of OrderNumberGenerator extension that encodes Order's id as Base36.
* @see OrderNumberGenerator
*/
@Component("Base36EncodedOrderNumberGenerator")
public class Base36EncodedOrderNumberGenerator implements OrderNumberGenerator {
/**
* Generates unique number for given order.
*/
public String generate(Order order) {
String id;
if (order.getExternalId() != null) {
id = order.getExternalId().toString();
} else {
id = UUID.randomUUID().toString();
}
String base36Id = new BigInteger(id.replace("-", ""), 16)
.toString(36).toUpperCase();
return base36Id.substring(0, 8);
}
}