001/**
002 * Copyright 2015 DuraSpace, Inc.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.fcrepo.http.commons.session;
017
018import static org.fcrepo.kernel.impl.services.TransactionServiceImpl.isInTransaction;
019import static org.slf4j.LoggerFactory.getLogger;
020
021import javax.inject.Inject;
022import javax.jcr.Session;
023import javax.servlet.http.HttpServletRequest;
024import javax.ws.rs.ext.Provider;
025
026import org.glassfish.hk2.api.Factory;
027import org.glassfish.jersey.process.internal.RequestScoped;
028import org.slf4j.Logger;
029
030/**
031 * Provide a JCR session within the current request context
032 *
033 * @author awoods
034 */
035@Provider
036@RequestScoped
037public class SessionProvider implements Factory<Session> {
038
039    @Inject
040    SessionFactory sessionFactory;
041
042    private HttpServletRequest request;
043
044    /**
045     * Create a new session provider for a request
046     * @param request the request
047     */
048    @Inject
049    public SessionProvider(final HttpServletRequest request) {
050        this.request = request;
051    }
052
053    private static final Logger LOGGER = getLogger(SessionProvider.class);
054
055    @Override
056    public Session provide() {
057        final Session session = sessionFactory.getSession(request);
058        LOGGER.trace("Providing new session {}", session);
059        return session;
060    }
061
062    @Override
063    public void dispose(final Session session) {
064        LOGGER.trace("Disposing session {}", session);
065
066        if (session.isLive() && !isInTransaction(session)) {
067            session.logout();
068        }
069    }
070}