org.jsmpp.util.RandomMessageIDGenerator Maven / Gradle / Ivy
/*
* Licensed 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.jsmpp.util;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.Random;
import org.jsmpp.PDUStringException;
/**
* Generate random alphanumeric
*
* @author uudashr
* @version 1.0
* @since 1.0
*
*/
public class RandomMessageIDGenerator implements MessageIDGenerator {
private Random random;
public RandomMessageIDGenerator() {
try {
random = SecureRandom.getInstance("SHA1PRNG");
} catch (NoSuchAlgorithmException e) {
random = new Random();
}
}
/* (non-Javadoc)
* @see org.jsmpp.util.MessageIDGenerator#newMessageId()
*/
public MessageId newMessageId() {
/*
* use database sequence convert into hex representation or if not using
* database using random
*/
try {
synchronized (random) {
return new MessageId(Integer.toString(random.nextInt(Integer.MAX_VALUE), 16));
}
} catch (PDUStringException e) {
throw new RuntimeException("Failed creating message id", e);
}
}
}