uk.ac.ebi.emma.manager.AbstractManager.java Source code

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Here is the source code for uk.ac.ebi.emma.manager.AbstractManager.java

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/*
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 /**
 * Copyright  2014 EMBL - European Bioinformatics Institute
 * 
 * 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 uk.ac.ebi.emma.manager;

import org.apache.log4j.Logger;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import uk.ac.ebi.emma.util.HibernateUtils;

/**
 *
 * @author mrelac
 */
public abstract class AbstractManager {
    protected final Logger logger = Logger.getLogger(this.getClass());
    protected SessionFactory sessionFactory;
    protected String username = null;

    public AbstractManager() {
        sessionFactory = HibernateUtils.getSessionFactory();
        logger.debug("Instantiating new AbstractManager for " + this.getClass() + ". sessionFactory is "
                + sessionFactory.toString());
    }

    protected Session getCurrentSession() {
        if (username == null) {
            SecurityContext securityContext = SecurityContextHolder.getContext();
            if (securityContext == null)
                throw new RuntimeException("AbstractManager.getCurrentSession(): securityContext is null.");
            Authentication authentication = securityContext.getAuthentication();
            if (authentication == null)
                throw new RuntimeException("AbstractManager.getCurrentSession(): authentication is null.");
            String name = authentication.getName();
            if (name == null)
                throw new RuntimeException("AbstractManager.getCurrentSession(): name is null.");
            username = name;
        }

        return sessionFactory.getCurrentSession();
    }

}