/*
    * Licensed to The Apereo Foundation under one or more contributor license
    * agreements. See the NOTICE file distributed with this work for additional
    * information regarding copyright ownership.
    *
    *
    * The Apereo Foundation licenses this file to you under the Educational
    * Community License, Version 2.0 (the "License"); you may not use this file
    * except in compliance with the License. You may obtain a copy of the License
   * at:
   *
   *   http://opensource.org/licenses/ecl2.txt
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
   * License for the specific language governing permissions and limitations under
   * the License.
   *
   */
  
  package org.opencastproject.scheduler.endpoint;
  
  import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
  import static javax.servlet.http.HttpServletResponse.SC_OK;
  import static javax.servlet.http.HttpServletResponse.SC_UNAUTHORIZED;
  import static org.apache.commons.lang3.exception.ExceptionUtils.getMessage;
  import static org.opencastproject.capture.CaptureParameters.AGENT_REGISTRATION_TYPE;
  import static org.opencastproject.capture.CaptureParameters.AGENT_REGISTRATION_TYPE_ADHOC;
  import static org.opencastproject.metadata.dublincore.DublinCore.PROPERTY_CREATED;
  import static org.opencastproject.metadata.dublincore.DublinCore.PROPERTY_SPATIAL;
  import static org.opencastproject.metadata.dublincore.DublinCore.PROPERTY_TEMPORAL;
  import static org.opencastproject.metadata.dublincore.DublinCore.PROPERTY_TITLE;
  import static org.opencastproject.util.Jsons.arr;
  import static org.opencastproject.util.Jsons.obj;
  import static org.opencastproject.util.Jsons.p;
  import static org.opencastproject.util.Jsons.v;
  import static org.opencastproject.util.RestUtil.generateErrorResponse;
  import static org.opencastproject.util.data.Monadics.mlist;
  
  import org.opencastproject.capture.admin.api.Agent;
  import org.opencastproject.capture.admin.api.AgentState;
  import org.opencastproject.capture.admin.api.CaptureAgentStateService;
  import org.opencastproject.mediapackage.Catalog;
  import org.opencastproject.mediapackage.MediaPackage;
  import org.opencastproject.mediapackage.MediaPackageBuilderFactory;
  import org.opencastproject.mediapackage.MediaPackageElement;
  import org.opencastproject.mediapackage.MediaPackageElementBuilderFactory;
  import org.opencastproject.mediapackage.MediaPackageElementFlavor;
  import org.opencastproject.mediapackage.MediaPackageElements;
  import org.opencastproject.mediapackage.MediaPackageException;
  import org.opencastproject.mediapackage.MediaPackageParser;
  import org.opencastproject.metadata.dublincore.DCMIPeriod;
  import org.opencastproject.metadata.dublincore.DublinCore;
  import org.opencastproject.metadata.dublincore.DublinCoreCatalog;
  import org.opencastproject.metadata.dublincore.DublinCoreUtil;
  import org.opencastproject.metadata.dublincore.DublinCores;
  import org.opencastproject.metadata.dublincore.EncodingSchemeUtils;
  import org.opencastproject.metadata.dublincore.Precision;
  import org.opencastproject.rest.RestConstants;
  import org.opencastproject.scheduler.api.Recording;
  import org.opencastproject.scheduler.api.SchedulerConflictException;
  import org.opencastproject.scheduler.api.SchedulerException;
  import org.opencastproject.scheduler.api.SchedulerService;
  import org.opencastproject.scheduler.api.TechnicalMetadata;
  import org.opencastproject.scheduler.impl.CaptureNowProlongingService;
  import org.opencastproject.security.api.UnauthorizedException;
  import org.opencastproject.systems.OpencastConstants;
  import org.opencastproject.util.DateTimeSupport;
  import org.opencastproject.util.Jsons;
  import org.opencastproject.util.Jsons.Arr;
  import org.opencastproject.util.Jsons.Prop;
  import org.opencastproject.util.Jsons.Val;
  import org.opencastproject.util.NotFoundException;
  import org.opencastproject.util.RestUtil;
  import org.opencastproject.util.UrlSupport;
  import org.opencastproject.util.doc.rest.RestParameter;
  import org.opencastproject.util.doc.rest.RestParameter.Type;
  import org.opencastproject.util.doc.rest.RestQuery;
  import org.opencastproject.util.doc.rest.RestResponse;
  import org.opencastproject.util.doc.rest.RestService;
  import org.opencastproject.workspace.api.Workspace;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.JsonPrimitive;
  import com.google.gson.JsonSerializer;
  
  import net.fortuna.ical4j.model.property.RRule;
  
  import org.apache.commons.io.IOUtils;
  import org.apache.commons.lang3.StringUtils;
  import org.joda.time.DateTime;
  import org.joda.time.DateTimeZone;
  import org.json.simple.JSONArray;
  import org.json.simple.JSONObject;
  import org.json.simple.parser.JSONParser;
  import org.osgi.service.component.ComponentContext;
  import org.osgi.service.component.annotations.Activate;
 import org.osgi.service.component.annotations.Component;
 import org.osgi.service.component.annotations.Reference;
 import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.osgi.service.component.annotations.ReferencePolicy;
 import org.osgi.service.jaxrs.whiteboard.propertytypes.JaxrsResource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringReader;
 import java.net.URI;
 import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Properties;
 import java.util.Set;
 import java.util.TimeZone;
 import java.util.UUID;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.ws.rs.DELETE;
 import javax.ws.rs.FormParam;
 import javax.ws.rs.GET;
 import javax.ws.rs.POST;
 import javax.ws.rs.PUT;
 import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.WebApplicationException;
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.ResponseBuilder;
 import javax.ws.rs.core.Response.Status;
 
 /**
  * REST Endpoint for Scheduler Service
  */
 @Path("/recordings")
 @RestService(name = "schedulerservice",
     title = "Scheduler Service",
     abstractText = "This service creates, edits and retrieves and helps managing scheduled capture events.",
     notes = {
         "All paths above are relative to the REST endpoint base (something like http://your.server/files)",
         "If the service is down or not working it will return a status 503, this means the the underlying service is "
                 + "not working and is either restarting or has failed",
         "A status code 500 means a general failure has occurred which is not recoverable and was not anticipated. In "
                 + "other words, there is a bug! You should file an error report with your server logs from the time "
                 + "when the error occurred: "
                 + "<a href=\"https://github.com/opencast/opencast/issues\">Opencast Issue Tracker</a>"
     }
 )
 @Component(
     immediate = true,
     service = SchedulerRestService.class,
     property = {
         "service.description=Scheduler REST Endpoint",
         "opencast.service.type=org.opencastproject.scheduler",
         "opencast.service.path=/recordings"
     }
 )
 @JaxrsResource
 public class SchedulerRestService {
 
   private static final Logger logger = LoggerFactory.getLogger(SchedulerRestService.class);
 
   /** Key for the default workflow definition in config.properties */
   private static final String DEFAULT_WORKFLOW_DEFINITION = "org.opencastproject.workflow.default.definition";
 
   private SchedulerService service;
   private CaptureAgentStateService agentService;
   private CaptureNowProlongingService prolongingService;
   private Workspace workspace;
 
   private final Gson gson = new Gson();
   private final Gson gsonTimestamp = new GsonBuilder()
       .registerTypeAdapter(
           Date.class,
           (JsonSerializer<Date>) (date, type, jsonSerializationContext) -> new JsonPrimitive(date.getTime()))
       .create();
 
   private String defaultWorkflowDefinitionId;
 
   protected String serverUrl = UrlSupport.DEFAULT_BASE_URL;
   protected String serviceUrl = null;
 
   /**
    * Method to set the service this REST endpoint uses
    *
    * @param service
    */
   @Reference(
       policy = ReferencePolicy.DYNAMIC,
       unbind = "unsetService"
   )
   public void setService(SchedulerService service) {
     this.service = service;
   }
 
   /**
    * Method to unset the service this REST endpoint uses
    *
    * @param service
    */
   public void unsetService(SchedulerService service) {
     if (this.service == service) {
       this.service = null;
     }
   }
 
   /**
    * Method to set the prolonging service this REST endpoint uses
    *
    * @param prolongingService
    */
   @Reference(
       policy = ReferencePolicy.DYNAMIC,
       unbind = "unsetProlongingService"
   )
   public void setProlongingService(CaptureNowProlongingService prolongingService) {
     this.prolongingService = prolongingService;
   }
 
   /**
    * Method to unset the prolonging service this REST endpoint uses
    *
    * @param prolongingService
    */
   public void unsetProlongingService(CaptureNowProlongingService prolongingService) {
     if (this.prolongingService == prolongingService) {
       this.prolongingService = null;
     }
   }
 
   /**
    * Method to set the capture agent state service this REST endpoint uses
    *
    * @param agentService
    */
   @Reference(
       cardinality = ReferenceCardinality.OPTIONAL,
       policy = ReferencePolicy.DYNAMIC,
       unbind = "unsetCaptureAgentStateService"
   )
   public void setCaptureAgentStateService(CaptureAgentStateService agentService) {
     this.agentService = agentService;
   }
 
   /**
    * Method to unset the capture agent state service this REST endpoint uses
    *
    * @param agentService
    */
   public void unsetCaptureAgentStateService(CaptureAgentStateService agentService) {
     if (this.agentService == agentService) {
       this.agentService = null;
     }
   }
 
   /**
    * Method to set the workspace this REST endpoint uses
    *
    * @param workspace
    */
   @Reference
   public void setWorkspace(Workspace workspace) {
     this.workspace = workspace;
   }
 
   /**
    * The method that will be called, if the service will be activated
    *
    * @param cc
    *          The ComponentContext of this service
    */
   @Activate
   public void activate(ComponentContext cc) {
     // Get the configured server URL
     if (cc != null) {
       String ccServerUrl = cc.getBundleContext().getProperty(OpencastConstants.SERVER_URL_PROPERTY);
       logger.debug("configured server url is {}", ccServerUrl);
       if (ccServerUrl == null) {
         serverUrl = UrlSupport.DEFAULT_BASE_URL;
       } else {
         serverUrl = ccServerUrl;
       }
       serviceUrl = (String) cc.getProperties().get(RestConstants.SERVICE_PATH_PROPERTY);
       defaultWorkflowDefinitionId = StringUtils
               .trimToNull(cc.getBundleContext().getProperty(DEFAULT_WORKFLOW_DEFINITION));
       if (defaultWorkflowDefinitionId == null) {
         defaultWorkflowDefinitionId = "schedule-and-upload";
       }
     }
   }
 
   /**
    * Gets a XML with the media package for the specified event.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return media package XML for the event
    */
   @GET
   @Produces(MediaType.TEXT_XML)
   @Path("{id:.+}/mediapackage.xml")
   @RestQuery(name = "getmediapackagexml",
       description = "Retrieves media package for specified event",
       returnDescription = "media package in XML",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of event for which media package will be "
               + "retrieved", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "DublinCore of event is in the body "
               + "of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with specified ID does "
               + "not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to remove the event. Maybe you need to authenticate.")
       }
   )
   public Response getMediaPackageXml(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       MediaPackage result = service.getMediaPackage(eventId);
       return Response.ok(MediaPackageParser.getAsXml(result)).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (SchedulerException e) {
       logger.error("Unable to retrieve event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    * Gets a XML with the Dublin Core metadata for the specified event.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return Dublin Core XML for the event
    */
   @GET
   @Produces(MediaType.TEXT_XML)
   @Path("{id:.+}/dublincore.xml")
   @RestQuery(name = "recordingsasxml",
       description = "Retrieves DublinCore for specified event",
       returnDescription = "DublinCore in XML",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of event for which DublinCore will be "
               + "retrieved", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "DublinCore of event is in the body "
               + "of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with specified ID does "
               + "not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to remove the event. Maybe you need to authenticate.")
       }
   )
   public Response getDublinCoreMetadataXml(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       DublinCoreCatalog result = service.getDublinCore(eventId);
       return Response.ok(result.toXmlString()).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to retrieve event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    * Gets a Dublin Core metadata for the specified event as JSON.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return Dublin Core JSON for the event
    */
   @GET
   @Produces(MediaType.APPLICATION_JSON)
   @Path("{id:.+}/dublincore.json")
   @RestQuery(name = "recordingsasjson",
       description = "Retrieves DublinCore for specified event",
       returnDescription = "DublinCore in JSON",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of event for which DublinCore will be "
               + "retrieved", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "DublinCore of event is in the body "
               + "of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with specified ID does "
               + "not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to remove the event. Maybe you need to authenticate.")
       }
   )
   public Response getDublinCoreMetadataJSON(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       DublinCoreCatalog result = service.getDublinCore(eventId);
       return Response.ok(result.toJson()).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to retrieve event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    * Gets a XML with the media package for the specified event.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return media package XML for the event
    */
   @GET
   @Produces(MediaType.TEXT_XML)
   @Path("{id:.+}/technical.json")
   @RestQuery(name = "gettechnicalmetadatajson",
       description = "Retrieves the technical metadata for specified event",
       returnDescription = "technical metadata as JSON",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of event for which the technical metadata "
               + "will be retrieved", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "technical metadata of event is in "
               + "the body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with specified ID does "
               + "not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to remove the event. Maybe you need to authenticate.")
       }
   )
   public Response getTechnicalMetadataJSON(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       TechnicalMetadata metadata = service.getTechnicalMetadata(eventId);
 
       Val state = v("");
       Val lastHeard = v("");
       if (metadata.getRecording().isPresent()) {
         state = v(metadata.getRecording().get().getState());
         lastHeard = v(DateTimeSupport.toUTC(metadata.getRecording().get().getLastCheckinTime()));
       }
 
       Arr presenters = arr(mlist(metadata.getPresenters()).map(Jsons.stringVal));
       List<Prop> wfProperties = new ArrayList<>();
       for (Entry<String, String> entry : metadata.getWorkflowProperties().entrySet()) {
         wfProperties.add(p(entry.getKey(), entry.getValue()));
       }
       List<Prop> agentConfig = new ArrayList<>();
       for (Entry<String, String> entry : metadata.getCaptureAgentConfiguration().entrySet()) {
         agentConfig.add(p(entry.getKey(), entry.getValue()));
       }
       return RestUtil.R.ok(obj(p("id", metadata.getEventId()), p("location", metadata.getAgentId()),
               p("start", DateTimeSupport.toUTC(metadata.getStartDate().getTime())),
               p("end", DateTimeSupport.toUTC(metadata.getEndDate().getTime())),
               p("presenters", presenters), p("wfProperties", obj(wfProperties.toArray(new Prop[wfProperties.size()]))),
               p("agentConfig", obj(agentConfig.toArray(new Prop[agentConfig.size()]))), p("state", state),
               p("lastHeardFrom", lastHeard)));
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (SchedulerException e) {
       logger.error("Unable to retrieve event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    * Gets the workflow configuration for the specified event.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return the workflow configuration
    */
   @GET
   @Produces(MediaType.TEXT_PLAIN)
   @Path("{id:.+}/workflow.properties")
   @RestQuery(name = "recordingsagentproperties",
       description = "Retrieves workflow configuration for specified event",
       returnDescription = "workflow configuration in the form of key, value pairs",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of event for which workflow configuration "
               + "will be retrieved", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "workflow configuration of event is "
               + "in the body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with specified ID does "
               + "not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to remove the event. Maybe you need to authenticate.")
       }
   )
   public Response getWorkflowConfiguration(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       Map<String, String> result = service.getWorkflowConfig(eventId);
       String serializedProperties = serializeProperties(result);
       return Response.ok(serializedProperties).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (SchedulerException e) {
       logger.error("Unable to retrieve workflow configuration for event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    * Gets java Properties file with technical metadata for the specified event.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return Java Properties File with the metadata for the event
    */
   @GET
   @Produces(MediaType.TEXT_PLAIN)
   @Path("{id:.+}/agent.properties")
   @RestQuery(name = "recordingsagentproperties",
       description = "Retrieves Capture Agent properties for specified event",
       returnDescription = "Capture Agent properties in the form of key, value pairs",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of event for which agent properties will "
               + "be retrieved", type = Type.STRING)
       },
       responses = {
                   @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Capture Agent properties of "
                       + "event is in the body of response"),
                   @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with "
                       + "specified ID does not exist"),
                   @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have "
                       + "permission to remove the event. Maybe you need to authenticate.")
       }
   )
   public Response getCaptureAgentMetadata(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       Map<String, String> result = service.getCaptureAgentConfiguration(eventId);
       String serializedProperties = serializeProperties(result);
       return Response.ok(serializedProperties).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (SchedulerException e) {
       logger.error("Unable to retrieve event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    *
    * Removes the specified event. Returns true if the event was found and could be removed.
    *
    * @param eventId
    *          The unique ID of the event.
    * @return true if the event was found and could be deleted.
    */
   @DELETE
   @Path("{id:.+}")
   @Produces(MediaType.TEXT_PLAIN)
   @RestQuery(name = "deleterecordings",
       description = "Removes scheduled event with specified ID.",
       returnDescription = "OK if event were successfully removed or NOT FOUND if event with specified ID does not "
           + "exist",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "Event ID", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Event was successfully removed"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "Event with specified ID does "
               + "not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to remove the event. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT, description = "Event with specified ID is "
               + "locked by a transaction, unable to delete event.")
       }
   )
   public Response deleteEvent(@PathParam("id") String eventId) throws UnauthorizedException {
     try {
       service.removeEvent(eventId);
       return Response.status(Response.Status.OK).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventId);
       return Response.status(Status.NOT_FOUND).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to delete event with id '{}': {}", eventId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    * Gets the iCalendar with all (even old) events for the specified filter.
    *
    * @param captureAgentId
    *          The ID that specifies the capture agent.
    * @param seriesId
    *          The ID that specifies series.
    *
    * @return an iCalendar
    */
   @GET
   @Produces("text/calendar")
   // NOTE: charset not supported by current jaxrs impl (is ignored), set explicitly in response
   @Path("calendars")
   @RestQuery(name = "getcalendar",
       description = "Returns iCalendar for specified set of events",
       returnDescription = "ICalendar for events",
       restParameters = {
           @RestParameter(name = "agentid", description = "Filter events by capture agent", isRequired = false,
               type = Type.STRING),
           @RestParameter(name = "seriesid", description = "Filter events by series", isRequired = false,
               type = Type.STRING),
           @RestParameter(name = "cutoff", description = "A cutoff date in UNIX milliseconds to limit the number of "
               + "events returned in the calendar.", isRequired = false, type = Type.INTEGER)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_MODIFIED, description = "Events were not modified "
               + "since last request"),
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Events were modified, new calendar "
               + "is in the body")
       }
   )
   public Response getCalendar(@QueryParam("agentid") String captureAgentId, @QueryParam("seriesid") String seriesId,
           @QueryParam("cutoff") Long cutoff, @Context HttpServletRequest request) {
     Date endDate = null;
     if (cutoff != null) {
       try {
         endDate = new Date(cutoff);
       } catch (NumberFormatException e) {
         return Response.status(Status.BAD_REQUEST).build();
       }
     }
 
     try {
       String lastModified = null;
       // If the etag matches the if-not-modified header,return a 304
       if (StringUtils.isNotBlank(captureAgentId)) {
         lastModified = service.getScheduleLastModified(captureAgentId);
         String ifNoneMatch = request.getHeader(HttpHeaders.IF_NONE_MATCH);
         if (StringUtils.isNotBlank(ifNoneMatch) && ifNoneMatch.equals(lastModified)) {
           return Response.notModified(lastModified).expires(null).build();
         }
       }
 
       String result = service.getCalendar(Optional.ofNullable(StringUtils.trimToNull(captureAgentId)),
               Optional.ofNullable(StringUtils.trimToNull(seriesId)), Optional.ofNullable(endDate));
 
       ResponseBuilder response = Response.ok(result).header(HttpHeaders.CONTENT_TYPE, "text/calendar; charset=UTF-8");
       if (StringUtils.isNotBlank(lastModified)) {
         response.header(HttpHeaders.ETAG, lastModified);
       }
       return response.build();
     } catch (Exception e) {
       logger.error("Unable to get calendar for capture agent '{}':", captureAgentId, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @GET
   @Produces("application/json")
   @Path("calendar.json")
   @RestQuery(name = "getCalendarJSON",
       description = "Returns a calendar in JSON format for specified events.",
       returnDescription = "Calendar for events in JSON format",
       restParameters = {
           @RestParameter(name = "agentid", description = "Filter events by capture agent", isRequired = false,
               type = Type.STRING),
           @RestParameter(name = "cutoff", description = "A cutoff date in UNIX milliseconds to limit the number of "
               + "events returned in the calendar.", isRequired = false, type = Type.INTEGER),
           @RestParameter(name = "timestamp", description = "Return dates as UNIX timestamp in milliseconds instead "
               + "of a date string.", isRequired = false, type = Type.BOOLEAN)
       }, responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_MODIFIED, description = "Events were not modified "
               + "since last request"),
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Events were modified, new calendar "
               + "is in the body")
       }
   )
   public Response getCalendarJson(
           @QueryParam("agentid") String captureAgentId,
           @QueryParam("cutoff") Long cutoff,
           @QueryParam("timestamp") Boolean timestamp,
           @Context HttpServletRequest request) {
     try {
       var endDate = Optional.ofNullable(cutoff)
               .map(Date::new);
       var agent = Optional.ofNullable(captureAgentId)
               .map(String::trim)
               .filter(id -> !id.isEmpty());
       timestamp = !Objects.isNull(timestamp) && timestamp;
 
       String lastModified = null;
       // If the `etag` matches the if-not-modified header,return a 304
       if (agent.isPresent()) {
         lastModified = service.getScheduleLastModified(agent.get());
         String ifNoneMatch = request.getHeader(HttpHeaders.IF_NONE_MATCH);
         if (StringUtils.isNotBlank(ifNoneMatch) && ifNoneMatch.equals(lastModified)) {
           return Response.notModified(lastModified).expires(null).build();
         }
       }
 
       var result = new ArrayList<Map<String, Object>>();
       for (var event: service.search(agent, Optional.empty(), Optional.empty(), Optional.of(new Date()), endDate)) {
         var id = event.getIdentifier().toString();
         result.add(Map.of(
                 "data", service.getTechnicalMetadata(id),
                 "episode-dublincore", service.getDublinCore(id).toXmlString()
                 ));
       }
 
       final ResponseBuilder response = Response.ok((timestamp ? gsonTimestamp : gson).toJson(result));
       if (StringUtils.isNotBlank(lastModified)) {
         response.header(HttpHeaders.ETAG, lastModified);
       }
       return response.build();
     } catch (Exception e) {
       throw new WebApplicationException(
               String.format("Unable to get calendar for capture agent %s", captureAgentId),
               e, Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
 
   @GET
   @Produces(MediaType.TEXT_PLAIN)
   @Path("{id}/lastmodified")
   @RestQuery(name = "agentlastmodified",
       description = "Retrieves the last modified hash for specified agent",
       returnDescription = "The last modified hash",
       pathParameters = {
           @RestParameter(name = "id", isRequired = true, description = "ID of capture agent for which the last "
               + "modified hash will be retrieved", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "The last modified hash of agent "
               + "is in the body of response")
       }
   )
   public Response getLastModified(@PathParam("id") String agentId) {
     try {
       String lastModified = service.getScheduleLastModified(agentId);
       return Response.ok(lastModified).build();
     } catch (Exception e) {
       logger.error("Unable to retrieve agent last modified hash of agent id '{}': {}", agentId, getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @POST
   @Path("/removeOldScheduledRecordings")
   @RestQuery(name = "removeOldScheduledRecordings",
       description = "This will find and remove any scheduled events before the buffer time to keep performance in the "
           + "scheduler optimum.",
       returnDescription = "No return value",
       responses = {
           @RestResponse(responseCode = SC_OK, description = "Removed old scheduled recordings."),
           @RestResponse(responseCode = SC_BAD_REQUEST, description = "Unable to parse buffer."),
           @RestResponse(responseCode = SC_UNAUTHORIZED, description = "You do not have permission to remove old "
               + "schedulings. Maybe you need to authenticate.")
       },
       restParameters = {
           @RestParameter(name = "buffer", type = RestParameter.Type.INTEGER, defaultValue = "604800", isRequired = true,
               description = "The amount of seconds before now that a capture has to have stopped capturing. "
                   + "It must be 0 or greater.")
       }
   )
   public Response removeOldScheduledRecordings(@FormParam("buffer") long buffer) throws UnauthorizedException {
     if (buffer < 0) {
       return Response.status(SC_BAD_REQUEST).build();
     }
 
     try {
       service.removeScheduledRecordingsBeforeBuffer(buffer);
     } catch (SchedulerException e) {
       logger.error("Error while trying to remove old scheduled recordings", e);
       throw new WebApplicationException(e);
     }
     return Response.ok().build();
   }
 
 
   /**
    * Creates new event based on parameters. All times and dates are in milliseconds.
    */
   @POST
   @Path("/")
   @RestQuery(name = "newrecording",
       description = "Creates new event with specified parameters",
       returnDescription = "If an event was successfully created",
       restParameters = {
           @RestParameter(name = "start", isRequired = true, type = Type.INTEGER,
               description = "The start date of the event in milliseconds from 1970-01-01T00:00:00Z"),
           @RestParameter(name = "end", isRequired = true, type = Type.INTEGER,
               description = "The end date of the event in milliseconds from 1970-01-01T00:00:00Z"),
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING, description = "The agent of the event"),
           @RestParameter(name = "users", isRequired = false, type = Type.STRING,
               description = "Comma separated list of user ids (speakers/lecturers) for the event"),
           @RestParameter(name = "mediaPackage", isRequired = true, type = Type.TEXT,
               description = "The media package of the event"),
           @RestParameter(name = "wfproperties", isRequired = false, type = Type.TEXT, description = "Workflow "
                   + "configuration keys for the event. Each key will be prefixed by 'org.opencastproject.workflow"
                   + ".config.' and added to the capture agent parameters."),
           @RestParameter(name = "agentparameters", isRequired = false, type = Type.TEXT,
               description = "The capture agent properties for the event"),
           @RestParameter(name = "source", isRequired = false, type = Type.STRING,
               description = "The scheduling source of the event"),
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_CREATED, description = "Event is successfully created"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT,
               description = "Unable to create event, conflicting events found (ConflicsFound)"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT,
               description = "Unable to create event, event locked by a transaction  (TransactionLock)"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED,
               description = "You do not have permission to create the event. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST,
               description = "Missing or invalid information for this request")
       }
   )
   public Response addEvent(@FormParam("start") long startTime, @FormParam("end") long endTime,
           @FormParam("agent") String agentId, @FormParam("users") String users,
           @FormParam("mediaPackage") String mediaPackageXml, @FormParam("wfproperties") String workflowProperties,
           @FormParam("agentparameters") String agentParameters,
           @FormParam("source") String schedulingSource)
                   throws UnauthorizedException {
     if (endTime <= startTime || startTime < 0) {
       logger.debug("Cannot add event without proper start and end time");
       return RestUtil.R.badRequest("Cannot add event without proper start and end time");
     }
 
     if (StringUtils.isBlank(agentId)) {
       logger.debug("Cannot add event without agent identifier");
       return RestUtil.R.badRequest("Cannot add event without agent identifier");
     }
 
     if (StringUtils.isBlank(mediaPackageXml)) {
       logger.debug("Cannot add event without media package");
       return RestUtil.R.badRequest("Cannot add event without media package");
     }
 
     MediaPackage mediaPackage;
     try {
       mediaPackage = MediaPackageParser.getFromXml(mediaPackageXml);
     } catch (MediaPackageException e) {
       logger.debug("Could not parse media package", e);
       return RestUtil.R.badRequest("Could not parse media package");
     }
 
     String eventId = mediaPackage.getIdentifier().toString();
 
     Map<String, String> caProperties = new HashMap<>();
     if (StringUtils.isNotBlank(agentParameters)) {
       try {
         Properties prop = parseProperties(agentParameters);
         caProperties.putAll((Map) prop);
       } catch (Exception e) {
         logger.info("Could not parse capture agent properties: {}", agentParameters);
         return RestUtil.R.badRequest("Could not parse capture agent properties");
       }
     }
 
     Map<String, String> wfProperties = new HashMap<>();
     if (StringUtils.isNotBlank(workflowProperties)) {
       try {
         Properties prop = parseProperties(workflowProperties);
         wfProperties.putAll((Map) prop);
       } catch (IOException e) {
         logger.info("Could not parse workflow configuration properties: {}", workflowProperties);
         return RestUtil.R.badRequest("Could not parse workflow configuration properties");
       }
     }
     Set<String> userIds = new HashSet<>();
     String[] ids = StringUtils.split(users, ",");
     if (ids != null) {
       userIds.addAll(Arrays.asList(ids));
     }
 
     DateTime startDate = new DateTime(startTime).toDateTime(DateTimeZone.UTC);
     DateTime endDate = new DateTime(endTime).toDateTime(DateTimeZone.UTC);
 
     try {
       service.addEvent(startDate.toDate(), endDate.toDate(), agentId, userIds, mediaPackage, wfProperties, caProperties,
               Optional.ofNullable(schedulingSource));
       return Response.status(Status.CREATED)
               .header("Location", serverUrl + serviceUrl + '/' + eventId + "/mediapackage.xml").build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (SchedulerConflictException e) {
       return Response.status(Status.CONFLICT).entity(generateErrorResponse(e)).type(MediaType.APPLICATION_JSON).build();
     } catch (Exception e) {
       logger.error("Unable to create new event with id '{}'", eventId, e);
       return Response.serverError().build();
     }
   }
 
   /**
    * Creates new event based on parameters. All times and dates are in milliseconds.
    */
   @POST
   @Path("/multiple")
   @RestQuery(name = "newrecordings",
       description = "Creates new event with specified parameters",
       returnDescription = "If an event was successfully created",
       restParameters = {
           @RestParameter(name = "rrule", isRequired = true, type = Type.STRING,
               description = "The recurrence rule for the events"),
           @RestParameter(name = "start", isRequired = true, type = Type.INTEGER,
               description = "The start date of the event in milliseconds from 1970-01-01T00:00:00Z"),
           @RestParameter(name = "end", isRequired = true, type = Type.INTEGER,
               description = "The end date of the event in milliseconds from 1970-01-01T00:00:00Z"),
           @RestParameter(name = "duration", isRequired = true, type = Type.INTEGER,
               description = "The duration of the events in milliseconds"),
           @RestParameter(name = "tz", isRequired = true, type = Type.INTEGER,
               description = "The timezone of the events"),
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING,
               description = "The agent of the event"),
           @RestParameter(name = "users", isRequired = false, type = Type.STRING,
               description = "Comma separated list of user ids (speakers/lecturers) for the event"),
           @RestParameter(name = "templateMp", isRequired = true, type = Type.TEXT,
               description = "The template mediapackage for the events"),
           @RestParameter(name = "wfproperties", isRequired = false, type = Type.TEXT, description = "Workflow "
                   + "configuration keys for the event. Each key will be prefixed by 'org.opencastproject.workflow"
                   + ".config.' and added to the capture agent parameters."),
           @RestParameter(name = "agentparameters", isRequired = false, type = Type.TEXT,
               description = "The capture agent properties for the event"),
           @RestParameter(name = "source", isRequired = false, type = Type.STRING,
               description = "The scheduling source of the event"),
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_CREATED, description = "Event is successfully created"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT,
               description = "Unable to create event, conflicting events found (ConflicsFound)"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT,
               description = "Unable to create event, event locked by a transaction  (TransactionLock)"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED,
               description = "You do not have permission to create the event. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST,
               description = "Missing or invalid information for this request")
       }
   )
   public Response addMultipleEvents(@FormParam("rrule") String rruleString, @FormParam("start") long startTime,
           @FormParam("end") long endTime, @FormParam("duration") long duration, @FormParam("tz") String tzString,
           @FormParam("agent") String agentId, @FormParam("users") String users,
           @FormParam("templateMp") MediaPackage templateMp, @FormParam("wfproperties") String workflowProperties,
           @FormParam("agentparameters") String agentParameters,
           @FormParam("source") String schedulingSource)
           throws UnauthorizedException {
     if (endTime <= startTime || startTime < 0) {
       logger.debug("Cannot add event without proper start and end time");
       return RestUtil.R.badRequest("Cannot add event without proper start and end time");
     }
 
     RRule rrule;
     try {
       rrule = new RRule(rruleString);
     } catch (ParseException e) {
       logger.debug("Could not parse recurrence rule");
       return RestUtil.R.badRequest("Could not parse recurrence rule");
     }
 
     if (duration < 1) {
       logger.debug("Cannot schedule events with durations less than 1");
       return RestUtil.R.badRequest("Cannot schedule events with durations less than 1");
     }
 
     if (StringUtils.isBlank(tzString)) {
       logger.debug("Cannot schedule events with blank timezone");
       return RestUtil.R.badRequest("Cannot schedule events with blank timezone");
     }
     TimeZone tz = TimeZone.getTimeZone(tzString);
 
     if (StringUtils.isBlank(agentId)) {
       logger.debug("Cannot add event without agent identifier");
       return RestUtil.R.badRequest("Cannot add event without agent identifier");
     }
 
     Map<String, String> caProperties = new HashMap<>();
     if (StringUtils.isNotBlank(agentParameters)) {
       try {
         Properties prop = parseProperties(agentParameters);
         caProperties.putAll((Map) prop);
       } catch (Exception e) {
         logger.info("Could not parse capture agent properties: {}", agentParameters);
         return RestUtil.R.badRequest("Could not parse capture agent properties");
       }
     }
 
     Map<String, String> wfProperties = new HashMap<>();
     if (StringUtils.isNotBlank(workflowProperties)) {
       try {
         Properties prop = parseProperties(workflowProperties);
         wfProperties.putAll((Map) prop);
       } catch (IOException e) {
         logger.info("Could not parse workflow configuration properties: {}", workflowProperties);
         return RestUtil.R.badRequest("Could not parse workflow configuration properties");
       }
     }
     Set<String> userIds = new HashSet<>();
     String[] ids = StringUtils.split(users, ",");
     if (ids != null) {
       userIds.addAll(Arrays.asList(ids));
     }
 
     // ical4j expects start and end dates to be in TimeZone to be schedule to (not UTC)
     DateTime startDate = new DateTime(startTime).toDateTime(DateTimeZone.forTimeZone(tz));
     DateTime endDate = new DateTime(endTime).toDateTime(DateTimeZone.forTimeZone(tz));
 
     try {
       service.addMultipleEvents(rrule, startDate.toDate(), endDate.toDate(), duration, tz, agentId, userIds, templateMp,
               wfProperties, caProperties, Optional.ofNullable(schedulingSource));
       return Response.status(Status.CREATED).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (SchedulerConflictException e) {
       return Response.status(Status.CONFLICT).entity(generateErrorResponse(e)).type(MediaType.APPLICATION_JSON).build();
     } catch (Exception e) {
       logger.error("Unable to create new events", e);
       return Response.serverError().build();
     }
   }
 
   @PUT
   @Path("{id}")
   @RestQuery(name = "updaterecordings",
       description = "Updates specified event",
       returnDescription = "Status OK is returned if event was successfully updated, NOT FOUND if specified event does "
           + "not exist or BAD REQUEST if data is missing or invalid",
       pathParameters = {
           @RestParameter(name = "id", description = "ID of event to be updated", isRequired = true, type = Type.STRING)
       },
       restParameters = {
           @RestParameter(name = "start", isRequired = false, type = Type.INTEGER,
               description = "Updated start date for event"),
           @RestParameter(name = "end", isRequired = false, type = Type.INTEGER,
               description = "Updated end date for event"),
           @RestParameter(name = "agent", isRequired = false, type = Type.STRING,
               description = "Updated agent for event"),
           @RestParameter(name = "users", isRequired = false, type = Type.STRING,
               description = "Updated comma separated list of user ids (speakers/lecturers) for the event"),
           @RestParameter(name = "mediaPackage", isRequired = false, type = Type.TEXT,
               description = "Updated media package for event"),
           @RestParameter(name = "wfproperties", isRequired = false, type = Type.TEXT,
               description = "Workflow configuration properties"),
           @RestParameter(name = "agentparameters", isRequired = false, type = Type.TEXT,
               description = "Updated Capture Agent properties")
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "Event was successfully updated"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND,
               description = "Event with specified ID does not exist"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT,
               description = "Unable to update event, conflicting events found (ConflicsFound)"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT,
               description = "Unable to update event, event locked by a transaction (TransactionLock)"),
           @RestResponse(responseCode = HttpServletResponse.SC_FORBIDDEN,
               description = "Event with specified ID cannot be updated"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED,
               description = "You do not have permission to update the event. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST,
               description = "Data is missing or invalid")
       }
   )
   public Response updateEvent(@PathParam("id") String eventID, @FormParam("start") Long startTime,
           @FormParam("end") Long endTime, @FormParam("agent") String agentId, @FormParam("users") String users,
           @FormParam("mediaPackage") String mediaPackageXml, @FormParam("wfproperties") String workflowProperties,
           @FormParam("agentparameters") String agentParameters) throws UnauthorizedException {
     if (startTime != null) {
       if (startTime < 0) {
         logger.debug("Cannot add event with negative start time ({} < 0)", startTime);
         return RestUtil.R.badRequest("Cannot add event with negative start time");
       }
       if (endTime != null && endTime <= startTime) {
         logger.debug("Cannot add event without proper end time ({} <= {})", startTime, endTime);
         return RestUtil.R.badRequest("Cannot add event without proper end time");
       }
     }
 
     MediaPackage mediaPackage = null;
     if (StringUtils.isNotBlank(mediaPackageXml)) {
       try {
         mediaPackage = MediaPackageParser.getFromXml(mediaPackageXml);
       } catch (Exception e) {
         logger.debug("Could not parse media packagey", e);
         return Response.status(Status.BAD_REQUEST).build();
       }
     }
 
     Map<String, String> caProperties = null;
     if (StringUtils.isNotBlank(agentParameters)) {
       try {
         Properties prop = parseProperties(agentParameters);
         caProperties = new HashMap<>();
         caProperties.putAll((Map) prop);
       } catch (Exception e) {
         logger.debug("Could not parse capture agent properties: {}", agentParameters, e);
         return Response.status(Status.BAD_REQUEST).build();
       }
     }
 
     Map<String, String> wfProperties = null;
     if (StringUtils.isNotBlank(workflowProperties)) {
       try {
         Properties prop = parseProperties(workflowProperties);
         wfProperties = new HashMap<>();
         wfProperties.putAll((Map) prop);
       } catch (IOException e) {
         logger.debug("Could not parse workflow configuration properties: {}", workflowProperties, e);
         return Response.status(Status.BAD_REQUEST).build();
       }
     }
 
     Set<String> userIds = null;
     String[] ids = StringUtils.split(StringUtils.trimToNull(users), ",");
     if (ids != null) {
       userIds = new HashSet<>(Arrays.asList(ids));
     }
 
     Date startDate = null;
     if (startTime != null) {
       startDate = new DateTime(startTime).toDateTime(DateTimeZone.UTC).toDate();
     }
 
     Date endDate = null;
     if (endTime != null) {
       endDate = new DateTime(endTime).toDateTime(DateTimeZone.UTC).toDate();
     }
 
     try {
       service.updateEvent(eventID, Optional.ofNullable(startDate), Optional.ofNullable(endDate),
               Optional.ofNullable(StringUtils.trimToNull(agentId)), Optional.ofNullable(userIds),
               Optional.ofNullable(mediaPackage), Optional.ofNullable(wfProperties), Optional.ofNullable(caProperties));
       return Response.ok().build();
     } catch (SchedulerConflictException e) {
       return Response.status(Status.CONFLICT).entity(generateErrorResponse(e)).type(MediaType.APPLICATION_JSON).build();
     } catch (SchedulerException e) {
       logger.warn("Error updating event with id '{}'", eventID, e);
       return Response.status(Status.FORBIDDEN).build();
     } catch (NotFoundException e) {
       logger.info("Event with id '{}' does not exist.", eventID);
       return Response.status(Status.NOT_FOUND).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to update event with id '{}'", eventID, e);
       return Response.serverError().build();
     }
   }
 
   @GET
   @Path("currentRecording/{agent}")
   @Produces(MediaType.TEXT_XML)
   @RestQuery(name = "currentrecording",
       description = "Get the current capture event as XML",
       returnDescription = "The current capture event as XML",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING, description = "The agent identifier")
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "current event is in the body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NO_CONTENT, description = "There is no current recording")
       }
   )
   public Response currentRecording(@PathParam("agent") String agentId) throws UnauthorizedException {
     try {
       Optional<MediaPackage> current = service.getCurrentRecording(agentId);
       if (current.isEmpty()) {
         return Response.noContent().build();
       } else {
         return Response.ok(MediaPackageParser.getAsXml(current.get())).build();
       }
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to get the current recording for agent '{}'", agentId, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @GET
   @Path("upcomingRecording/{agent}")
   @Produces(MediaType.TEXT_XML)
   @RestQuery(name = "upcomingrecording",
       description = "Get the upcoming capture event as XML",
       returnDescription = "The upcoming capture event as XML",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING, description = "The agent identifier")
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "upcoming event is in the body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NO_CONTENT,
               description = "There is no upcoming recording")
       }
   )
   public Response upcomingRecording(@PathParam("agent") String agentId) throws UnauthorizedException {
     try {
       Optional<MediaPackage> upcoming = service.getUpcomingRecording(agentId);
       if (upcoming.isEmpty()) {
         return Response.noContent().build();
       } else {
         return Response.ok(MediaPackageParser.getAsXml(upcoming.get())).build();
       }
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to get the upcoming recording for agent '{}'", agentId, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @GET
   @Path("eventCount")
   @Produces(MediaType.TEXT_PLAIN)
   @RestQuery(name = "eventcount",
       description = "Get the number of scheduled events",
       returnDescription = "The number of scheduled events",
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "The event count")
       }
   )
   public Response eventCount() throws UnauthorizedException {
     try {
       return Response.ok("" + service.getEventCount()).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to get the event count", e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @GET
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
   @Path("recordings.{type:xml|json}")
   @RestQuery(name = "recordingsaslist",
       description = "Searches recordings and returns result as XML or JSON",
       returnDescription = "XML or JSON formated results",
        pathParameters = {
           @RestParameter(name = "type", isRequired = true, description = "The media type of the response [xml|json]",
               type = Type.STRING)
        },
        restParameters = {
           @RestParameter(name = "agent", description = "Search by device", isRequired = false, type = Type.STRING),
           @RestParameter(name = "startsfrom", description = "Search by when does event start", isRequired = false,
               type = Type.INTEGER),
           @RestParameter(name = "startsto", description = "Search by when does event start", isRequired = false,
               type = Type.INTEGER),
           @RestParameter(name = "endsfrom", description = "Search by when does event finish", isRequired = false,
               type = Type.INTEGER),
           @RestParameter(name = "endsto", description = "Search by when does event finish", isRequired = false,
               type = Type.INTEGER)
        },
        responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "Search completed, results returned in body")
       }
   )
   public Response getEventsAsList(@PathParam("type") final String type, @QueryParam("agent") String device,
           @QueryParam("startsfrom") Long startsFromTime,
           @QueryParam("startsto") Long startsToTime, @QueryParam("endsfrom") Long endsFromTime,
           @QueryParam("endsto") Long endsToTime) throws UnauthorizedException {
     Date startsfrom = null;
     Date startsTo = null;
     Date endsFrom = null;
     Date endsTo = null;
     if (startsFromTime != null) {
       startsfrom = new DateTime(startsFromTime).toDateTime(DateTimeZone.UTC).toDate();
     }
     if (startsToTime != null) {
       startsTo = new DateTime(startsToTime).toDateTime(DateTimeZone.UTC).toDate();
     }
     if (endsFromTime != null) {
       endsFrom = new DateTime(endsFromTime).toDateTime(DateTimeZone.UTC).toDate();
     }
     if (endsToTime != null) {
       endsTo = new DateTime(endsToTime).toDateTime(DateTimeZone.UTC).toDate();
     }
 
     try {
       List<MediaPackage> events = service.search(Optional.ofNullable(StringUtils.trimToNull(device)),
               Optional.ofNullable(startsfrom), Optional.ofNullable(startsTo), Optional.ofNullable(endsFrom),
               Optional.ofNullable(endsTo));
       if ("json".equalsIgnoreCase(type)) {
         return Response.ok(getEventListAsJsonString(events)).build();
       } else {
         return Response.ok(MediaPackageParser.getArrayAsXml(events)).build();
       }
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to perform search: {}", getMessage(e));
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
   @GET
   @Produces(MediaType.APPLICATION_JSON)
   @Path("conflicts.json")
   @RestQuery(name = "conflictingrecordingsasjson",
       description = "Searches for conflicting recordings based on parameters",
       returnDescription = "Returns NO CONTENT if no recordings are in conflict within specified period or list of "
           + "conflicting recordings in JSON",
       restParameters = {
           @RestParameter(name = "agent", description = "Device identifier for which conflicts will be searched",
               isRequired = true, type = Type.STRING),
           @RestParameter(name = "start", description = "Start time of conflicting period, in milliseconds",
               isRequired = true, type = Type.INTEGER),
           @RestParameter(name = "end", description = "End time of conflicting period, in milliseconds",
               isRequired = true, type = Type.INTEGER),
           @RestParameter(name = "rrule", description = "Rule for recurrent conflicting, "
               + "specified as: \"FREQ=WEEKLY;BYDAY=day(s);BYHOUR=hour;BYMINUTE=minute\". FREQ is required. "
               + "BYDAY may include one or more (separated by commas) of the following: SU,MO,TU,WE,TH,FR,SA.",
               isRequired = false, type = Type.STRING),
           @RestParameter(name = "duration", description = "If recurrence rule is specified duration of each "
               + "conflicting period, in milliseconds", isRequired = false, type = Type.INTEGER),
           @RestParameter(name = "timezone", description = "The timezone of the capture device",
               isRequired = false, type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_NO_CONTENT, description = "No conflicting events found"),
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "Found conflicting events, returned in body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST,
               description = "Missing or invalid parameters"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED,
               description = "Not authorized to make this request"),
           @RestResponse(responseCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
               description = "A detailed stack track of the internal issue.")
       }
   )
   public Response getConflictingEventsJson(@QueryParam("agent") String device, @QueryParam("rrule") String rrule,
           @QueryParam("start") Long startDate, @QueryParam("end") Long endDate, @QueryParam("duration") Long duration,
           @QueryParam("timezone") String timezone) throws UnauthorizedException {
     try {
       List<MediaPackage> events = getConflictingEvents(device, rrule, startDate, endDate, duration, timezone);
       if (!events.isEmpty()) {
         String eventsJsonString = getEventListAsJsonString(events);
         return Response.ok(eventsJsonString).build();
       } else {
         return Response.noContent().build();
       }
     } catch (IllegalArgumentException e) {
       return Response.status(Status.BAD_REQUEST).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to find conflicting events for {}, {}, {}, {}, {}:",
               device, rrule, startDate, endDate, duration, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @GET
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
   @Path("conflicts.{type:xml|json}")
   @RestQuery(name = "conflictingrecordings",
       description = "Searches for conflicting recordings based on parameters and returns result as XML or JSON",
       returnDescription = "Returns NO CONTENT if no recordings are in conflict within specified period or list of "
           + "conflicting recordings in XML or JSON",
         pathParameters = {
            @RestParameter(name = "type", isRequired = true, description = "The media type of the response [xml|json]",
                type = Type.STRING)
         },
         restParameters = {
            @RestParameter(name = "agent", description = "Device identifier for which conflicts will be searched",
                isRequired = true, type = Type.STRING),
            @RestParameter(name = "start", description = "Start time of conflicting period, in milliseconds",
                isRequired = true, type = Type.INTEGER),
            @RestParameter(name = "end", description = "End time of conflicting period, in milliseconds",
                isRequired = true, type = Type.INTEGER),
            @RestParameter(name = "rrule", description = "Rule for recurrent conflicting, "
                + "specified as: \"FREQ=WEEKLY;BYDAY=day(s);BYHOUR=hour;BYMINUTE=minute\". FREQ is required. "
                + "BYDAY may include one or more (separated by commas) of the following: SU,MO,TU,WE,TH,FR,SA.",
                isRequired = false, type = Type.STRING),
            @RestParameter(name = "duration", description = "If recurrence rule is specified duration of each "
                + "conflicting period, in milliseconds", isRequired = false, type = Type.INTEGER),
            @RestParameter(name = "timezone", description = "The timezone of the capture device",
                isRequired = false, type = Type.STRING)
         },
         responses = {
            @RestResponse(responseCode = HttpServletResponse.SC_NO_CONTENT, description = "No conflicting events found"),
            @RestResponse(responseCode = HttpServletResponse.SC_OK,
                description = "Found conflicting events, returned in body of response"),
            @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST,
                description = "Missing or invalid parameters"),
            @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED,
                description = "Not authorized to make this request"),
            @RestResponse(responseCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                description = "A detailed stack track of the internal issue.")
         }
   )
   public Response getConflicts(@PathParam("type") final String type, @QueryParam("agent") String device,
           @QueryParam("rrule") String rrule, @QueryParam("start") Long startDate, @QueryParam("end") Long endDate,
           @QueryParam("duration") Long duration, @QueryParam("timezone") String timezone) throws UnauthorizedException {
     // Pass dates in the TZ to be schedule to (not UTC)
     // If no timezone passed, use the local timezone of the system
     if (StringUtils.isBlank(timezone)) {
       timezone = DateTimeZone.getDefault().toString();
     }
 
     try {
       List<MediaPackage> events = getConflictingEvents(device, rrule, startDate, endDate, duration, timezone);
       if (!events.isEmpty()) {
         if ("json".equalsIgnoreCase(type)) {
           return Response.ok(getEventListAsJsonString(events)).build();
         } else {
           return Response.ok(MediaPackageParser.getArrayAsXml(events)).build();
         }
       } else {
         return Response.noContent().build();
       }
     } catch (IllegalArgumentException e) {
       return Response.status(Status.BAD_REQUEST).build();
     } catch (UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to find conflicting events for {}, {}, {}, {}, {}",
               device, rrule, startDate, endDate, duration, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @PUT
   @Path("{id}/recordingStatus")
   @RestQuery(name = "updateRecordingState",
       description = "Set the status of a given recording, registering it if it is new",
       pathParameters = {
           @RestParameter(description = "The ID of a given recording", isRequired = true, name = "id",
               type = Type.STRING)
       },
       restParameters = {
           @RestParameter(description = "The state of the recording. Must be one of the following: unknown, capturing, "
               + "capture_finished, capture_error, manifest, manifest_error, manifest_finished, compressing, "
               + "compressing_error, uploading, upload_finished, upload_error.",
               isRequired = true, name = "state", type = Type.STRING)
       },
       responses = {
           @RestResponse(description = "{id} set to {state}", responseCode = HttpServletResponse.SC_OK),
           @RestResponse(description = "{id} or state {state} is empty or the {state} is not known",
               responseCode = HttpServletResponse.SC_BAD_REQUEST),
           @RestResponse(description = "Recording with {id} could not be found",
               responseCode = HttpServletResponse.SC_NOT_FOUND)
       },
       returnDescription = ""
   )
   public Response updateRecordingState(@PathParam("id") String id, @FormParam("state") String state)
           throws NotFoundException {
     if (StringUtils.isEmpty(id) || StringUtils.isEmpty(state)) {
       return Response.serverError().status(Response.Status.BAD_REQUEST).build();
     }
 
     try {
       if (service.updateRecordingState(id, state)) {
         return Response.ok(id + " set to " + state).build();
       } else {
         return Response.status(Response.Status.BAD_REQUEST).build();
       }
     } catch (SchedulerException e) {
       logger.debug("Unable to set recording state of {}:", id, e);
       return Response.serverError().build();
     }
   }
 
   @GET
   @Produces(MediaType.APPLICATION_JSON)
   @Path("{id}/recordingStatus")
   @RestQuery(name = "getRecordingState",
       description = "Return the state of a given recording",
       pathParameters = {
           @RestParameter(description = "The ID of a given recording", isRequired = true, name = "id",
               type = Type.STRING)
       },
       restParameters = {},
       responses = {
           @RestResponse(description = "Returns the state of the recording with the correct id",
               responseCode = HttpServletResponse.SC_OK),
           @RestResponse(description = "The recording with the specified ID does not exist",
               responseCode = HttpServletResponse.SC_NOT_FOUND)
       },
       returnDescription = ""
   )
   public Response getRecordingState(@PathParam("id") String id) throws NotFoundException {
     try {
       Recording rec = service.getRecordingState(id);
       return RestUtil.R
               .ok(obj(p("id", rec.getID()), p("state", rec.getState()), p("lastHeardFrom", rec.getLastCheckinTime())));
     } catch (SchedulerException e) {
       logger.debug("Unable to get recording state of {}:", id, e);
       return Response.serverError().build();
     }
   }
 
   @DELETE
   @Path("{id}/recordingStatus")
   @RestQuery(name = "removeRecording",
       description = "Remove record of a given recording",
       pathParameters = {
           @RestParameter(description = "The ID of a given recording", isRequired = true, name = "id",
               type = Type.STRING)
       },
       restParameters = {},
       responses = {
           @RestResponse(description = "{id} removed", responseCode = HttpServletResponse.SC_OK),
           @RestResponse(description = "{id} is empty", responseCode = HttpServletResponse.SC_BAD_REQUEST),
           @RestResponse(description = "Recording with {id} could not be found",
               responseCode = HttpServletResponse.SC_NOT_FOUND)
       },
       returnDescription = ""
   )
   public Response removeRecording(@PathParam("id") String id) throws NotFoundException {
     if (StringUtils.isEmpty(id)) {
       return Response.serverError().status(Response.Status.BAD_REQUEST).build();
     }
 
     try {
       service.removeRecording(id);
       return Response.ok(id + " removed").build();
     } catch (SchedulerException e) {
       logger.debug("Unable to remove recording with id '{}':", id, e);
       return Response.serverError().build();
     }
   }
 
   @GET
   @Produces(MediaType.APPLICATION_JSON)
   @Path("recordingStatus")
   @RestQuery(name = "getAllRecordings",
       description = "Return all registered recordings and their state",
       pathParameters = {},
       restParameters = {},
       responses = {
           @RestResponse(description = "Returns all known recordings.", responseCode = HttpServletResponse.SC_OK)
       },
       returnDescription = ""
   )
   public Response getAllRecordings() {
     try {
       List<Val> update = new ArrayList<>();
       for (Entry<String, Recording> e : service.getKnownRecordings().entrySet()) {
         update.add(obj(p("id", e.getValue().getID()), p("state", e.getValue().getState()),
                 p("lastHeardFrom", e.getValue().getLastCheckinTime())));
       }
       return RestUtil.R.ok(arr(update).toJson());
     } catch (SchedulerException e) {
       logger.debug("Unable to get all recordings:", e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   /**
    *
    *
    *
    * Prolonging service
    *
    *
    *
    *
    */
 
   @GET
   @Path("capture/{agent}")
   @Produces(MediaType.APPLICATION_JSON)
   @RestQuery(name = "currentcapture",
       description = "Get the current capture event catalog as JSON",
       returnDescription = "The current capture event catalog as JSON",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING, description = "The agent identifier")
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "DublinCore of current capture event is in the body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "There is no ongoing recording"),
           @RestResponse(responseCode = HttpServletResponse.SC_SERVICE_UNAVAILABLE,
               description = "The agent is not ready to communicate")
       }
   )
   public Response currentCapture(@PathParam("agent") String agentId) throws NotFoundException {
     if (service == null || agentService == null) {
       return Response.serverError().status(Response.Status.SERVICE_UNAVAILABLE)
           .entity("Scheduler service is unavailable, please wait...").build();
     }
 
     try {
       Optional<MediaPackage> current = service.getCurrentRecording(agentId);
       if (current.isEmpty()) {
         logger.info("No recording to stop found for agent '{}'!", agentId);
         throw new NotFoundException("No recording to stop found for agent: " + agentId);
       } else {
         DublinCoreCatalog catalog = DublinCoreUtil.loadEpisodeDublinCore(workspace, current.get()).get();
         return Response.ok(catalog.toJson()).build();
       }
     } catch (NotFoundException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to get the immediate recording for agent '{}'", agentId, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @GET
   @Path("capture/{agent}/upcoming")
   @Produces(MediaType.APPLICATION_JSON)
   @RestQuery(name = "upcomingcapture",
       description = "Get the upcoming capture event catalog as JSON",
       returnDescription = "The upcoming capture event catalog as JSON",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING, description = "The agent identifier")
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK,
               description = "DublinCore of the upcomfing capture event is in the body of response"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND,
               description = "There is no upcoming recording"),
           @RestResponse(responseCode = HttpServletResponse.SC_SERVICE_UNAVAILABLE,
               description = "The agent is not ready to communicate")
       }
   )
   public Response upcomingCapture(@PathParam("agent") String agentId) throws NotFoundException {
     if (service == null || agentService == null) {
       return Response.serverError().status(Response.Status.SERVICE_UNAVAILABLE)
           .entity("Scheduler service is unavailable, please wait...").build();
     }
 
     try {
       Optional<MediaPackage> upcoming = service.getUpcomingRecording(agentId);
       if (upcoming.isEmpty()) {
         logger.info("No recording to stop found for agent '{}'!", agentId);
         throw new NotFoundException("No recording to stop found for agent: " + agentId);
       } else {
         DublinCoreCatalog catalog = DublinCoreUtil.loadEpisodeDublinCore(workspace, upcoming.get()).get();
         return Response.ok(catalog.toJson()).build();
       }
     } catch (NotFoundException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to get the immediate recording for agent '{}'", agentId, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   @POST
   @Path("capture/{agent}")
   @RestQuery(name = "startcapture",
       description = "Create an immediate event",
       returnDescription = "If events were successfully generated, status CREATED is returned",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, type = Type.STRING, description = "The agent identifier")
       },
       restParameters = {
           @RestParameter(name = "workflowDefinitionId", isRequired = false, type = Type.STRING,
               description = "The workflow definition id to use")
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_CREATED, description = "Recording started"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "There is no such agent"),
           @RestResponse(responseCode = HttpServletResponse.SC_CONFLICT, description = "The agent is already recording"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to start this immediate capture. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_SERVICE_UNAVAILABLE,
               description = "The agent is not ready to communicate")
       }
   )
   public Response startCapture(@PathParam("agent") String agentId, @FormParam("workflowDefinitionId") String wfId)
           throws NotFoundException, UnauthorizedException {
     if (service == null || agentService == null || prolongingService == null) {
       return Response.serverError().status(Response.Status.SERVICE_UNAVAILABLE)
           .entity("Scheduler service is unavailable, please wait...").build();
     }
 
     // Lookup the agent. If it doesn't exist, add a temporary registration
     boolean adHocRegistration = false;
     try {
       agentService.getAgent(agentId);
     } catch (NotFoundException e) {
       Properties adHocProperties = new Properties();
       adHocProperties.put(AGENT_REGISTRATION_TYPE, AGENT_REGISTRATION_TYPE_ADHOC);
       agentService.setAgentConfiguration(agentId, adHocProperties);
       agentService.setAgentState(agentId, AgentState.CAPTURING);
       adHocRegistration = true;
       logger.info("Temporarily registered agent '{}' for ad-hoc recording", agentId);
     }
 
     try {
       Date now = new Date();
       Date temporaryEndDate = DateTime.now().plus(prolongingService.getInitialTime()).toDate();
       try {
         List<MediaPackage> events = service.findConflictingEvents(agentId, now, temporaryEndDate);
         if (!events.isEmpty()) {
           logger.info("An already existing event is in a conflict with the the one to be created on the agent {}!",
                   agentId);
           return Response.status(Status.CONFLICT).build();
         }
       } catch (SchedulerException e) {
         logger.error("Unable to create immediate event on agent {}", agentId, e);
         throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
       }
 
       String workflowId = defaultWorkflowDefinitionId;
       if (StringUtils.isNotBlank(wfId)) {
         workflowId = wfId;
       }
 
       Map<String, String> caProperties = new HashMap<>();
       caProperties.put("org.opencastproject.workflow.definition", workflowId);
       caProperties.put("event.location", agentId);
       caProperties.put("event.title", "Capture now event");
       // caProperties.put("org.opencastproject.workflow.config.captionHold", "false");
       // caProperties.put("org.opencastproject.workflow.config.archiveOp", "true");
       // caProperties.put("org.opencastproject.workflow.config.trimHold", "false");
 
       // TODO default metadata? configurable?
       // A temporal with start and end period is needed! As well PROPERTY_SPATIAL is needed
       DublinCoreCatalog eventCatalog = DublinCores.mkOpencastEpisode().getCatalog();
       eventCatalog.set(PROPERTY_TITLE, "Capture now event");
       eventCatalog.set(PROPERTY_TEMPORAL,
               EncodingSchemeUtils.encodePeriod(new DCMIPeriod(now, temporaryEndDate), Precision.Second));
       eventCatalog.set(PROPERTY_SPATIAL, agentId);
       eventCatalog.set(PROPERTY_CREATED, EncodingSchemeUtils.encodeDate(new Date(), Precision.Minute));
       // eventCatalog.set(PROPERTY_CREATOR, "demo");
       // eventCatalog.set(PROPERTY_SUBJECT, "demo");
       // eventCatalog.set(PROPERTY_LANGUAGE, "demo");
       // eventCatalog.set(PROPERTY_CONTRIBUTOR, "demo");
       // eventCatalog.set(PROPERTY_DESCRIPTION, "demo");
 
       // TODO workflow properties
       Map<String, String> wfProperties = new HashMap<>();
 
       MediaPackage mediaPackage = null;
       try {
         mediaPackage = MediaPackageBuilderFactory.newInstance().newMediaPackageBuilder().createNew();
         mediaPackage = addCatalog(workspace, IOUtils.toInputStream(eventCatalog.toXmlString(), "UTF-8"),
                 "dublincore.xml", MediaPackageElements.EPISODE, mediaPackage);
 
         prolongingService.schedule(agentId);
         service.addEvent(now, temporaryEndDate, agentId, Collections.<String> emptySet(), mediaPackage, wfProperties,
                 caProperties, Optional.empty());
         return Response.status(Status.CREATED)
                 .header("Location", serverUrl + serviceUrl + '/' + mediaPackage.getIdentifier().toString() + ".xml")
                 .build();
       } catch (Exception e) {
         prolongingService.stop(agentId);
         if (e instanceof UnauthorizedException) {
           throw (UnauthorizedException) e;
         }
         logger.error("Unable to create immediate event on agent {}", agentId, e);
         throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
       } finally {
         if (mediaPackage != null) {
           for (MediaPackageElement elem : mediaPackage.getElements()) {
             if (MediaPackageElements.EPISODE.matches(elem.getFlavor())) {
               try {
                 workspace.delete(elem.getURI());
               } catch (NotFoundException e) {
                 logger.warn("Unable to find (and hence, delete), this mediapackage '{}' element '{}'",
                     mediaPackage.getIdentifier(), elem.getIdentifier());
               } catch (IOException e) {
                 throw new RuntimeException(e);
               }
             }
           }
         }
       }
     } catch (Throwable t) {
       throw t;
     } finally {
       if (adHocRegistration) {
         agentService.removeAgent(agentId);
         logger.info("Removed temporary registration for agent '{}'", agentId);
       }
     }
   }
 
   @DELETE
   @Path("capture/{agent}")
   @Produces(MediaType.TEXT_PLAIN)
   @RestQuery(name = "stopcapture",
       description = "Stops an immediate capture.",
       returnDescription = "OK if event were successfully stopped",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, description = "The agent identifier", type = Type.STRING)
       },
       responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Recording stopped"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_MODIFIED,
               description = "The recording was already stopped"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND, description = "There is no such agent"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to stop this immediate capture. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_SERVICE_UNAVAILABLE,
               description = "The agent is not ready to communicate")
       }
   )
   public Response stopCapture(@PathParam("agent") String agentId) throws NotFoundException, UnauthorizedException {
     if (service == null || agentService == null || prolongingService == null) {
       return Response.serverError().status(Response.Status.SERVICE_UNAVAILABLE)
           .entity("Scheduler service is unavailable, please wait...").build();
     }
 
     boolean isAdHoc = false;
     try {
       Agent agent = agentService.getAgent(agentId);
       String registrationType = (String) agent.getConfiguration().get(AGENT_REGISTRATION_TYPE);
       isAdHoc = AGENT_REGISTRATION_TYPE_ADHOC.equals(registrationType);
     } catch (NotFoundException e) {
       logger.debug("Temporarily registered agent '{}' for ad-hoc recording already removed", agentId);
     }
 
     try {
       String eventId;
       MediaPackage mp;
       DublinCoreCatalog eventCatalog;
       try {
         Optional<MediaPackage> current = service.getCurrentRecording(agentId);
         if (current.isEmpty()) {
           logger.info("No recording to stop found for agent '{}'!", agentId);
           return Response.notModified().build();
         } else {
           mp = current.get();
           eventCatalog = DublinCoreUtil.loadEpisodeDublinCore(workspace, mp).get();
           eventId = mp.getIdentifier().toString();
         }
       } catch (Exception e) {
         logger.error("Unable to get the immediate recording for agent '{}'", agentId, e);
         throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
       }
 
       try {
         DCMIPeriod period = EncodingSchemeUtils
                 .decodeMandatoryPeriod(eventCatalog.getFirst(DublinCore.PROPERTY_TEMPORAL));
         eventCatalog.set(PROPERTY_TEMPORAL,
                 EncodingSchemeUtils.encodePeriod(new DCMIPeriod(period.getStart(), new Date()), Precision.Second));
 
         mp = addCatalog(workspace, IOUtils.toInputStream(eventCatalog.toXmlString(), "UTF-8"), "dublincore.xml",
                 MediaPackageElements.EPISODE, mp);
 
         service.updateEvent(eventId, Optional.empty(), Optional.empty(), Optional.empty(),
                 Optional.empty(), Optional.of(mp), Optional.empty(),
                 Optional.empty());
         prolongingService.stop(agentId);
         return Response.ok().build();
       } catch (UnauthorizedException e) {
         throw e;
       } catch (Exception e) {
         logger.error("Unable to update the temporal of event '{}'", eventId, e);
         throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
       }
     } catch (Throwable t) {
       throw t;
     } finally {
       if (isAdHoc) {
         agentService.removeAgent(agentId);
         logger.info("Removed temporary agent registration '{}'", agentId);
       }
     }
   }
 
   @PUT
   @Path("capture/{agent}/prolong")
   @Produces(MediaType.TEXT_PLAIN)
   @RestQuery(name = "prolongcapture",
       description = "Prolong an immediate capture.",
       returnDescription = "OK if event were successfully prolonged",
       pathParameters = {
           @RestParameter(name = "agent", isRequired = true, description = "The agent identifier", type = Type.STRING)
       }, responses = {
           @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Recording prolonged"),
           @RestResponse(responseCode = HttpServletResponse.SC_NOT_FOUND,
               description = "No recording found for prolonging"),
           @RestResponse(responseCode = HttpServletResponse.SC_UNAUTHORIZED, description = "You do not have permission "
               + "to prolong this immediate capture. Maybe you need to authenticate."),
           @RestResponse(responseCode = HttpServletResponse.SC_SERVICE_UNAVAILABLE,
               description = "The agent is not ready to communicate")
       }
   )
   public Response prolongCapture(@PathParam("agent") String agentId) throws NotFoundException, UnauthorizedException {
     if (service == null || agentService == null || prolongingService == null) {
       return Response.serverError().status(Response.Status.SERVICE_UNAVAILABLE)
           .entity("Scheduler service is unavailable, please wait...").build();
     }
     try {
       MediaPackage event = prolongingService.getCurrentRecording(agentId);
       DublinCoreCatalog dc = DublinCoreUtil.loadEpisodeDublinCore(workspace, event).get();
       prolongingService.prolongEvent(event, dc, agentId);
       return Response.ok().build();
     } catch (NotFoundException | UnauthorizedException e) {
       throw e;
     } catch (Exception e) {
       logger.error("Unable to prolong the immediate recording for agent '{}'", agentId, e);
       throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
     }
   }
 
   private List<MediaPackage> getConflictingEvents(String device, String rrule,
           Long startDate, Long endDate, Long duration, String timezone)
                   throws IllegalArgumentException, UnauthorizedException, SchedulerException {
 
     List<MediaPackage> events = null;
 
     if (StringUtils.isBlank(device) || startDate == null || endDate == null) {
       logger.info("Either agent, start date or end date were not specified");
       throw new IllegalArgumentException();
     }
 
     RRule rule = null;
     if (StringUtils.isNotBlank(rrule)) {
       if (duration == null || StringUtils.isBlank(timezone)) {
         logger.info("Either duration or timezone were not specified");
         throw new IllegalArgumentException();
       }
 
       try {
         rule = new RRule(rrule);
         rule.validate();
       } catch (Exception e) {
         logger.info("Unable to parse rrule {}: {}", rrule, getMessage(e));
         throw new IllegalArgumentException();
       }
 
       if (!Arrays.asList(TimeZone.getAvailableIDs()).contains(timezone)) {
         logger.info("Unable to parse timezone: {}", timezone);
         throw new IllegalArgumentException();
       }
     }
 
     Date start = new DateTime(startDate).toDateTime(DateTimeZone.UTC).toDate();
 
     Date end = new DateTime(endDate).toDateTime(DateTimeZone.UTC).toDate();
 
     if (StringUtils.isNotBlank(rrule)) {
       events = service.findConflictingEvents(device, rule, start, end, duration, TimeZone.getTimeZone(timezone));
     } else {
       events = service.findConflictingEvents(device, start, end);
     }
     return events;
   }
 
   private MediaPackage addCatalog(Workspace workspace, InputStream in, String fileName,
           MediaPackageElementFlavor flavor, MediaPackage mediaPackage) throws IOException {
     Catalog[] catalogs = mediaPackage.getCatalogs(flavor);
     Catalog c = null;
     if (catalogs.length == 1) {
       c = catalogs[0];
     }
 
     // If catalog found, create a new one
     if (c == null) {
       c = (Catalog) MediaPackageElementBuilderFactory.newInstance().newElementBuilder()
               .newElement(MediaPackageElement.Type.Catalog, flavor);
       c.setIdentifier(UUID.randomUUID().toString());
       logger.info("Adding catalog with flavor {} to mediapackage {}", flavor, mediaPackage);
       mediaPackage.add(c);
     }
 
     // Update comments catalog
     try {
       URI catalogUrl = workspace.put(mediaPackage.getIdentifier().toString(), c.getIdentifier(), fileName, in);
       c.setURI(catalogUrl);
       // setting the URI to a new source so the checksum will most like be invalid
       c.setChecksum(null);
     } finally {
       IOUtils.closeQuietly(in);
     }
     return mediaPackage;
   }
 
   private String serializeProperties(Map<String, String> properties) {
     StringBuilder wfPropertiesString = new StringBuilder();
     for (Map.Entry<String, String> entry : properties.entrySet()) {
       wfPropertiesString.append(entry.getKey() + "=" + entry.getValue() + "\n");
     }
     return wfPropertiesString.toString();
   }
 
   /**
    * Parses Properties represented as String.
    *
    * @param serializedProperties
    *          properties to be parsed.
    * @return parsed properties
    * @throws IOException
    *           if parsing fails
    */
   private Properties parseProperties(String serializedProperties) throws IOException {
     Properties caProperties = new Properties();
     logger.debug("properties: {}", serializedProperties);
     caProperties.load(new StringReader(serializedProperties));
     return caProperties;
   }
 
   /**
    * Serializes mediapackage schedule metadata into JSON array string.
    *
    * @return serialized array as json array string
    * @throws SchedulerException
    *           if parsing list into JSON format fails
    */
   public String getEventListAsJsonString(List<MediaPackage> mpList) throws SchedulerException {
     JSONParser parser = new JSONParser();
     JSONObject jsonObj = new JSONObject();
     JSONArray jsonArray = new JSONArray();
     for (MediaPackage mp: mpList) {
       JSONObject mpJson;
       try {
         mpJson = (JSONObject) parser.parse(MediaPackageParser.getAsJSON(mp));
         mpJson = (JSONObject) mpJson.get("mediapackage");
         jsonArray.add(mpJson);
       } catch (org.json.simple.parser.ParseException e) {
         logger.warn("Unexpected JSON parse exception for getAsJSON on mp {}", mp.getIdentifier().toString(), e);
         throw new SchedulerException(e);
       }
     }
     jsonObj.put("totalCount", String.valueOf(mpList.size()));
     jsonObj.put("events", jsonArray);
     return jsonObj.toJSONString();
   }
 }