org.apache.shiro.authc.ConcurrentAccessException Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.shiro.authc;
/**
* Thrown when an authentication attempt has been received for an account that has already been
* authenticated (i.e. logged-in), and the system is configured to prevent such concurrent access.
*
* This is useful when an application must ensure that only one person is logged-in to a single
* account at any given time.
*
*
Sometimes account names and passwords are lazily given away
* to many people for easy access to a system. Such behavior is undesirable in systems where
* users are accountable for their actions, such as in government applications, or when licensing
* agreements must be maintained, such as those which only allow 1 user per paid license.
*
*
By disallowing concurrent access, such systems can ensure that each authenticated session
* corresponds to one and only one user at any given time.
*
* @since 0.1
*/
public class ConcurrentAccessException extends AccountException {
/**
* Creates a new ConcurrentAccessException.
*/
public ConcurrentAccessException() {
super();
}
/**
* Constructs a new ConcurrentAccessException.
*
* @param message the reason for the exception
*/
public ConcurrentAccessException(String message) {
super(message);
}
/**
* Constructs a new ConcurrentAccessException.
*
* @param cause the underlying Throwable that caused this exception to be thrown.
*/
public ConcurrentAccessException(Throwable cause) {
super(cause);
}
/**
* Constructs a new ConcurrentAccessException.
*
* @param message the reason for the exception
* @param cause the underlying Throwable that caused this exception to be thrown.
*/
public ConcurrentAccessException(String message, Throwable cause) {
super(message, cause);
}
}