/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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.keycloak.saml.processing.core.saml.v2.common;
import org.keycloak.saml.common.PicketLinkLogger;
import org.keycloak.saml.common.PicketLinkLoggerFactory;
import java.util.UUID;
/**
* Utility class that generates unique IDs
*
* @author Anil.Saldhana@redhat.com
* @since Jan 5, 2009
*/
public class IDGenerator {
private static final PicketLinkLogger logger = PicketLinkLoggerFactory.getLogger();
/*
* Create a basic unique ID
*/
public static String create() {
return UUID.randomUUID().toString();
}
/**
* Create an id that is prefixed by a string
*
* @param prefix
*
* @return an id
*
* @throws IllegalArgumentException when prefix is null
*/
public static String create(String prefix) {
if (prefix == null)
throw logger.nullArgumentError("prefix");
StringBuilder sb = new StringBuilder(prefix);
sb.append(IDGenerator.create());
return sb.toString();
}
}