EditionServiceMessageBean.java

/*
 * Copyright (C) 2011 - 2012 Interactive Media Management
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package dk.i2m.converge.ejb.messaging;

import dk.i2m.converge.core.DataNotFoundException;
import dk.i2m.converge.core.content.NewsItemPlacement;
import dk.i2m.converge.core.logging.LogSeverity;
import dk.i2m.converge.core.plugin.EditionAction;
import dk.i2m.converge.core.security.UserAccount;
import dk.i2m.converge.core.workflow.Edition;
import dk.i2m.converge.core.workflow.EditionActionException;
import dk.i2m.converge.core.workflow.OutletEditionAction;
import dk.i2m.converge.ejb.facades.OutletFacadeLocal;
import dk.i2m.converge.ejb.facades.SystemFacadeLocal;
import dk.i2m.converge.ejb.facades.UserFacadeLocal;
import dk.i2m.converge.ejb.services.DaoServiceLocal;
import dk.i2m.converge.ejb.services.PluginContextBeanLocal;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.ejb.EJB;
import javax.ejb.MessageDriven;
import javax.ejb.MessageDrivenContext;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;

/**
 * Message driven bean responding to edition service actions. The bean is
 * capable of executing {@link OutletEditionAction}s for {@link Edition}s and
 * {@link NewsItemPlacement}s. The bean expects the following properties:
 * <ul>
 * <li>editionId</li>
 * <li>actionId</li>
 * <li>newsItemPlacementId (If the bean is to execute the action on a single
 * placement rather than a complete edition)</li>
 * </ul>
 *
 * @author Allan Lykke Christensen
 */
@MessageDriven(mappedName = "jms/editionServiceQueue")
public class EditionServiceMessageBean implements MessageListener {

    public enum Property {

        /**
         * Mandatory property containing the identifier of the {@link UserAccount}.
         */
        USER_ACCOUNT_ID,
        /**
         * Mandatory property containing the identifier of the {@link Edition}.
         */
        EDITION_ID,
        /**
         * Mandatory property containing the identifier of the {@link OutletEditionAction}.
         */
        ACTION_ID,
        /**
         * Optional property containing the identifier of the {@link NewsItemPlacement}.
         */
        NEWS_ITEM_PLACEMENT_ID
    }

    private static final Logger LOG =
            Logger.getLogger(EditionServiceMessageBean.class.getName());

    @EJB private OutletFacadeLocal outletFacade;

    @EJB private DaoServiceLocal daoService;

    @EJB private PluginContextBeanLocal pluginContext;

    @EJB private SystemFacadeLocal systemFacade;

    @EJB private UserFacadeLocal userFacade;

    @Resource private MessageDrivenContext mdc;

    @Override
    public void onMessage(Message msg) {
        Long id = 0L;
        try {
            boolean placementExecution = false;
            Long newsItemPlacementId = 0L;

            Long editionId = msg.getLongProperty(Property.EDITION_ID.name());
            Long actionId = msg.getLongProperty(Property.ACTION_ID.name());
            String uid = msg.getStringProperty(Property.USER_ACCOUNT_ID.name());

            try {
                newsItemPlacementId =
                        msg.getLongProperty(
                        Property.NEWS_ITEM_PLACEMENT_ID.name());
                placementExecution = true;
            } catch (NumberFormatException ex) {
                placementExecution = false;
            }

            try {
                UserAccount ua = userFacade.findById(uid);
                pluginContext.setCurrentUserAccount(ua);
            } catch (Exception ex) {
                LOG.log(Level.WARNING, "User with ID ''{0}'' could not be set",
                        new Object[]{uid});
            }

            try {
                OutletEditionAction action =
                        daoService.findById(OutletEditionAction.class, actionId);
                id = systemFacade.createBackgroundTask(action.getAction().
                        getName() + " - " + action.getLabel());
                EditionAction editionAction = action.getAction();
                Edition edition = outletFacade.findEditionById(editionId);
                // Fetch Placements
                edition.getPlacements();

                if (placementExecution) {
                    NewsItemPlacement placement =
                            daoService.findById(NewsItemPlacement.class,
                            newsItemPlacementId);
                    editionAction.executePlacement(pluginContext, placement,
                            edition, action);
                } else {
                    editionAction.execute(pluginContext, edition, action);
                }

            } catch (DataNotFoundException ex) {
                pluginContext.log(LogSeverity.WARNING, ex.getMessage(),
                        new OutletEditionAction(), actionId);
            } catch (EditionActionException ex) {
                pluginContext.log(LogSeverity.WARNING, ex.getMessage(),
                        new OutletEditionAction(), actionId);
            }

        } catch (JMSException ex) {
            LOG.log(Level.SEVERE, null, ex);
        } finally {
            systemFacade.removeBackgroundTask(id);
        }
    }
}