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/*
* Copyright (C) 2005 Johan Maasing johan at zoom.nu
*
* 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 nu.zoom.ldap.eon.connection;
import java.io.Serializable;
import nu.zoom.util.UniqueIDGenerator;
/**
* A globally unique key used to identify connection instances.
*
* @version $Revision: 1.1.1.1 $
* @author $Author: johan $
*/
public class ConnectionGUID implements Serializable
{
private static final UniqueIDGenerator generator = new UniqueIDGenerator();
private String guid;
private ConnectionGUID(UniqueIDGenerator generator) {
guid = generator.getID();
}
private ConnectionGUID(String guid) {
if (guid == null) {
throw new IllegalArgumentException("guid string can not be null");
}
guid = generator.getID();
}
/**
* Get a new connection id. This is guaranteed to be globally unique.
*
* @see UniqueIDGenerator#getID()
* @return A new id.
*/
public static final ConnectionGUID getInstance() {
return new ConnectionGUID(generator);
}
/**
* Convert a string representation to an instance of a Connection GUID
*
* @param guid
* The string representation of a GUID. Can not be null.
*/
public static final ConnectionGUID fromString(String guid) {
return new ConnectionGUID(guid);
}
/**
* Get a String representation of the ConnectionGUID.
*/
public String toString() {
return guid;
}
}