fr.ortolang.diffusion.notification.NotificationServiceBean.java Source code

Introduction

Here is the source code for fr.ortolang.diffusion.notification.NotificationServiceBean.java

Source

package fr.ortolang.diffusion.notification;

/*
 * #%L
 * ORTOLANG
 * A online network structure for hosting language resources and tools.
 * 
 * Jean-Marie Pierrel / ATILF UMR 7118 - CNRS / Universit de Lorraine
 * Etienne Petitjean / ATILF UMR 7118 - CNRS
 * Jrme Blanchard / ATILF UMR 7118 - CNRS
 * Bertrand Gaiffe / ATILF UMR 7118 - CNRS
 * Cyril Pestel / ATILF UMR 7118 - CNRS
 * Marie Tonnelier / ATILF UMR 7118 - CNRS
 * Ulrike Fleury / ATILF UMR 7118 - CNRS
 * Frdric Pierre / ATILF UMR 7118 - CNRS
 * Cline Moro / ATILF UMR 7118 - CNRS
 *  
 * This work is based on work done in the equipex ORTOLANG (http://www.ortolang.fr/), by several Ortolang contributors (mainly CNRTL and SLDR)
 * ORTOLANG is funded by the French State program "Investissements d'Avenir" ANR-11-EQPX-0032
 * %%
 * Copyright (C) 2013 - 2015 Ortolang Team
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
 * #L%
 */

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Collections;
import java.util.Date;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.annotation.Resource;
import javax.annotation.security.PermitAll;
import javax.ejb.Local;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.inject.Inject;
import javax.jms.JMSContext;
import javax.jms.Message;
import javax.jms.Topic;

import org.apache.commons.codec.binary.Base64;
import org.jboss.ejb3.annotation.SecurityDomain;

import fr.ortolang.diffusion.OrtolangEvent;

@Local(NotificationService.class)
@Stateless(name = NotificationService.SERVICE_NAME)
@SecurityDomain("ortolang")
@PermitAll
public class NotificationServiceBean implements NotificationService {

    private static final Logger LOGGER = Logger.getLogger(NotificationServiceBean.class.getName());

    @Resource(mappedName = "java:jboss/exported/jms/topic/notification")
    private Topic notificationTopic;
    @Inject
    private JMSContext context;

    public NotificationServiceBean() {
    }

    @Override
    public void throwEvent(String fromObject, String throwedBy, String objectType, String eventType)
            throws NotificationServiceException {
        throwEvent(fromObject, throwedBy, objectType, eventType, null);
    }

    @Override
    @TransactionAttribute(TransactionAttributeType.REQUIRED)
    public void throwEvent(String fromObject, String throwedBy, String objectType, String eventType,
            Map<String, String> arguments) throws NotificationServiceException {
        try {
            Message message = context.createMessage();
            message.setStringProperty(OrtolangEvent.DATE, OrtolangEvent.getEventDateFormatter().format(new Date()));
            message.setStringProperty(OrtolangEvent.THROWED_BY, throwedBy);
            message.setStringProperty(OrtolangEvent.FROM_OBJECT, fromObject);
            message.setStringProperty(OrtolangEvent.OBJECT_TYPE, objectType);
            message.setStringProperty(OrtolangEvent.TYPE, eventType);
            if (arguments != null && arguments instanceof Serializable) {
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                ObjectOutputStream oos = new ObjectOutputStream(baos);
                oos.writeObject(arguments);
                oos.close();
                message.setStringProperty(OrtolangEvent.ARGUMENTS, Base64.encodeBase64String(baos.toByteArray()));
            }
            context.createProducer().send(notificationTopic, message);

        } catch (Exception e) {
            LOGGER.log(Level.WARNING, "unable to throw event", e);
            throw new NotificationServiceException("unable to throw event", e);
        }
    }

    //Service methods

    @Override
    public String getServiceName() {
        return NotificationService.SERVICE_NAME;
    }

    @Override
    public Map<String, String> getServiceInfos() {
        return Collections.emptyMap();
    }

}