/*
* Copyright 2016 the original author or authors.
*
* 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.springframework.statemachine.security;
import org.springframework.messaging.Message;
import org.springframework.security.access.expression.SecurityExpressionRoot;
import org.springframework.security.core.Authentication;
import org.springframework.util.ObjectUtils;
/**
* The {@link SecurityExpressionRoot} used for {@link Message} expressions.
*
* @author Rob Winch
* @author Janne Valkealahti
*/
public class EventSecurityExpressionRoot extends SecurityExpressionRoot {
public final Message<?> message;
/**
* Instantiates a new event security expression root.
*
* @param authentication the authentication
* @param message the message
*/
public EventSecurityExpressionRoot(Authentication authentication, Message<?> message) {
super(authentication);
this.message = message;
}
public final boolean hasEvent(Object source) {
return ObjectUtils.nullSafeEquals(source, message.getPayload());
}
}