de.pksoftware.springstrap.basic.service.BasicSecurityService.java Source code

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Here is the source code for de.pksoftware.springstrap.basic.service.BasicSecurityService.java

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/*
 * 
 * Springstrap
 *
 * @author Jan Philipp Knller <info@pksoftware.de>
 * 
 * Homepage: http://ui5strap.com/springstrap
 *
 * Copyright (c) 2013-2014 Jan Philipp Knller <info@pksoftware.de>
 * 
 * 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.
 * Released under Apache2 license: http://www.apache.org/licenses/LICENSE-2.0.txt
 * 
 */

package de.pksoftware.springstrap.basic.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Service;

import de.pksoftware.springstrap.core.domain.IAccount;
import de.pksoftware.springstrap.core.exception.NoSuchAccountException;
import de.pksoftware.springstrap.core.service.IAccountService;

@Service
public class BasicSecurityService {

    private static final Logger logger = LoggerFactory.getLogger(BasicSecurityService.class);

    @Autowired
    private IAccountService accountService;

    /**
     * Returns the current logged in Account.
     * @return
     */
    public IAccount getCurrentAccount() {
        IAccount account = getCurrentUserDetails();

        //We get the entity again by its ID. This is only executed until the entity is in the JPA cache.
        //This helps to prevent cache side effects produced by JPA cache.
        if (null != account) {
            logger.info("Requesting Account for ID " + account.getId());

            try {
                return accountService.loadAccountById(account.getId());
            } catch (NoSuchAccountException e) {
                return null;
            }
        }

        return null;
    }

    /**
     * Get the UserDetails of the current logged in Account.
     * @return
     */
    public static IAccount getCurrentUserDetails() {
        SecurityContext securityContext = SecurityContextHolder.getContext();
        Authentication auth = securityContext.getAuthentication();
        if (null != auth && !(auth instanceof AnonymousAuthenticationToken)) {
            return (IAccount) auth.getPrincipal();
        }
        return null;
    }
}