sample.security.MessagePermissionEvaluator.java Source code

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Here is the source code for sample.security.MessagePermissionEvaluator.java

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/*
 * Copyright 2002-2013 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 sample.security;

import java.io.Serializable;

import org.springframework.security.access.PermissionEvaluator;
import org.springframework.security.core.Authentication;
import sample.data.Message;
import sample.data.User;
import org.springframework.stereotype.Component;

/**
 */
@Component
public class MessagePermissionEvaluator implements PermissionEvaluator {
    /* (non-Javadoc)
     * @see org.springframework.security.access.PermissionEvaluator#hasPermission(org.springframework.security.core.Authentication, java.lang.Object, java.lang.Object)
     */
    @Override
    public boolean hasPermission(Authentication authentication, Object targetDomainObject, Object permission) {
        if (authentication == null) {
            return false;
        }
        Message message = (Message) targetDomainObject;
        if (message == null) {
            return true;
        }
        User currentUser = (User) authentication.getPrincipal();
        return currentUser.getId().equals(message.getTo().getId());
    }

    /* (non-Javadoc)
     * @see org.springframework.security.access.PermissionEvaluator#hasPermission(org.springframework.security.core.Authentication, java.io.Serializable, java.lang.String, java.lang.Object)
     */
    @Override
    public boolean hasPermission(Authentication authentication, Serializable targetId, String targetType,
            Object permission) {
        throw new UnsupportedOperationException();
    }

}