001/*
002 * Licensed to DuraSpace under one or more contributor license agreements.
003 * See the NOTICE file distributed with this work for additional information
004 * regarding copyright ownership.
005 *
006 * DuraSpace licenses this file to you under the Apache License,
007 * Version 2.0 (the "License"); you may not use this file except in
008 * compliance with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.fcrepo.http.commons.session;
019
020import static org.fcrepo.kernel.modeshape.services.TransactionServiceImpl.isInTransaction;
021import static org.slf4j.LoggerFactory.getLogger;
022
023import javax.inject.Inject;
024import javax.jcr.Session;
025import javax.servlet.http.HttpServletRequest;
026import javax.ws.rs.ext.Provider;
027
028import org.glassfish.hk2.api.Factory;
029import org.glassfish.jersey.process.internal.RequestScoped;
030import org.slf4j.Logger;
031
032/**
033 * Provide a JCR session within the current request context
034 *
035 * @author awoods
036 */
037@Provider
038@RequestScoped
039public class SessionProvider implements Factory<Session> {
040
041    @Inject
042    SessionFactory sessionFactory;
043
044    private HttpServletRequest request;
045
046    /**
047     * Create a new session provider for a request
048     * @param request the request
049     */
050    @Inject
051    public SessionProvider(final HttpServletRequest request) {
052        this.request = request;
053    }
054
055    private static final Logger LOGGER = getLogger(SessionProvider.class);
056
057    @Override
058    public Session provide() {
059        final Session session = sessionFactory.getSession(request);
060        LOGGER.trace("Providing new session {}", session);
061        return session;
062    }
063
064    @Override
065    public void dispose(final Session session) {
066        LOGGER.trace("Disposing session {}", session);
067
068        if (session.isLive() && !isInTransaction(session)) {
069            session.logout();
070        }
071    }
072}