Java tutorial
/* * This 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 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.mobicents.servlet.sip.restcomm.http; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import com.thoughtworks.xstream.XStream; import java.util.List; import static javax.ws.rs.core.MediaType.*; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.Response; import static javax.ws.rs.core.Response.*; import static javax.ws.rs.core.Response.Status.*; import org.apache.shiro.authz.AuthorizationException; import org.mobicents.servlet.sip.restcomm.ServiceLocator; import org.mobicents.servlet.sip.restcomm.Sid; import org.mobicents.servlet.sip.restcomm.annotations.concurrency.NotThreadSafe; import org.mobicents.servlet.sip.restcomm.dao.DaoManager; import org.mobicents.servlet.sip.restcomm.dao.NotificationsDao; import org.mobicents.servlet.sip.restcomm.entities.Notification; import org.mobicents.servlet.sip.restcomm.entities.NotificationList; import org.mobicents.servlet.sip.restcomm.entities.RestCommResponse; import org.mobicents.servlet.sip.restcomm.http.converter.NotificationConverter; import org.mobicents.servlet.sip.restcomm.http.converter.NotificationListConverter; import org.mobicents.servlet.sip.restcomm.http.converter.RestCommResponseConverter; /** * @author quintana.thomas@gmail.com (Thomas Quintana) */ @NotThreadSafe public abstract class NotificationsEndpoint extends AbstractEndpoint { protected final NotificationsDao dao; protected final Gson gson; protected final XStream xstream; public NotificationsEndpoint() { super(); final ServiceLocator services = ServiceLocator.getInstance(); dao = services.get(DaoManager.class).getNotificationsDao(); final NotificationConverter converter = new NotificationConverter(configuration); final GsonBuilder builder = new GsonBuilder(); builder.registerTypeAdapter(Notification.class, converter); builder.setPrettyPrinting(); gson = builder.create(); xstream = new XStream(); xstream.alias("RestcommResponse", RestCommResponse.class); xstream.registerConverter(converter); xstream.registerConverter(new NotificationListConverter(configuration)); xstream.registerConverter(new RestCommResponseConverter(configuration)); } protected Response getNotification(final String accountSid, final String sid, final MediaType responseType) { try { secure(new Sid(accountSid), "RestComm:Read:Notifications"); } catch (final AuthorizationException exception) { return status(UNAUTHORIZED).build(); } final Notification notification = dao.getNotification(new Sid(sid)); if (notification == null) { return status(NOT_FOUND).build(); } else { if (APPLICATION_JSON_TYPE == responseType) { return ok(gson.toJson(notification), APPLICATION_JSON).build(); } else if (APPLICATION_XML_TYPE == responseType) { final RestCommResponse response = new RestCommResponse(notification); return ok(xstream.toXML(response), APPLICATION_XML).build(); } else { return null; } } } protected Response getNotifications(final String accountSid, final MediaType responseType) { try { secure(new Sid(accountSid), "RestComm:Read:Notifications"); } catch (final AuthorizationException exception) { return status(UNAUTHORIZED).build(); } final List<Notification> notifications = dao.getNotifications(new Sid(accountSid)); if (APPLICATION_JSON_TYPE == responseType) { return ok(gson.toJson(notifications), APPLICATION_JSON).build(); } else if (APPLICATION_XML_TYPE == responseType) { final RestCommResponse response = new RestCommResponse(new NotificationList(notifications)); return ok(xstream.toXML(response), APPLICATION_XML).build(); } else { return null; } } }