Examples with MediaPackageException org.opencastproject.mediapackage.MediaPackageException used on opensource projects

Example 61 with MediaPackageException

use of org.opencastproject.mediapackage.MediaPackageException in project opencast by opencast.

the class SmilServiceRest method addClip.

@POST
@Path("addClip")
@Produces({ MediaType.APPLICATION_XML, MediaType.TEXT_XML })
@RestQuery(name = "addClip", description = "Add new media element based on given Track information and start / duration parameters. " + "ParentId specifies where to put the new media element.", restParameters = { @RestParameter(name = "smil", description = "SMIL document where to add new media element.", isRequired = true, type = RestParameter.Type.TEXT), @RestParameter(name = "parentId", description = "An element Id, were to add new media.", isRequired = false, type = RestParameter.Type.STRING), @RestParameter(name = "track", description = "Track (MediaPackageElement) to add as media element. " + "Some information like Track source and flavor will be stored in ParamGroup (in SMIL Head) " + "and referenced by paramGroup media element attribute.", isRequired = true, type = RestParameter.Type.TEXT), @RestParameter(name = "start", description = "Track start position in milliseconds.", isRequired = true, type = RestParameter.Type.INTEGER), @RestParameter(name = "duration", description = "Clip duration in milliseconds (should be positive).", isRequired = true, type = RestParameter.Type.INTEGER) }, returnDescription = "Returns new Smil with an media element inside " + "(the new media and metadata elements will be returned as response entities).", reponses = { @RestResponse(responseCode = HttpServletResponse.SC_OK, description = "Add media element to SMIL successfull."), @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST, description = "SMIL document not valid."), @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST, description = "Track not valid."), @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST, description = "SMIL document doesn't contain an element with given parentId."), @RestResponse(responseCode = HttpServletResponse.SC_BAD_REQUEST, description = "Start plus duration is bigger than Track length.") })
public Response addClip(@FormParam("smil") String smil, @FormParam("parentId") String parentId, @FormParam("track") String track, @FormParam("start") long start, @FormParam("duration") long duration) {
    SmilResponse smilResponse = null;
    Track trackObj = null;
    try {
        smilResponse = smilService.fromXml(smil);
        trackObj = (Track) MediaPackageElementParser.getFromXml(track);
    } catch (SmilException ex) {
        return Response.status(HttpServletResponse.SC_BAD_REQUEST).entity("SMIL document invalid.").build();
    } catch (MediaPackageException ex) {
        return Response.status(HttpServletResponse.SC_BAD_REQUEST).entity("Track is not valid.").build();
    }
    try {
        smilResponse = smilService.addClip(smilResponse.getSmil(), parentId, trackObj, start, duration);
        return Response.ok(smilResponse).build();
    } catch (SmilException ex) {
        logger.info(ex.getMessage(), ex);
        return Response.status(HttpServletResponse.SC_BAD_REQUEST).entity("SMIL document doesn't contain an element with given parentId.").build();
    }
}

Example 62 with MediaPackageException

use of org.opencastproject.mediapackage.MediaPackageException in project opencast by opencast.

the class SilenceDetectionServiceImpl method detect.

/**
 * {@inheritDoc}
 *
 * @see org.opencastproject.silencedetection.api.SilenceDetectionService#detect(
 * org.opencastproject.mediapackage.Track, org.opencastproject.mediapackage.Track[])
 */
@Override
public Job detect(Track sourceTrack, Track[] referenceTracks) throws SilenceDetectionFailedException {
    try {
        if (sourceTrack == null) {
            throw new SilenceDetectionFailedException("Source track is null!");
        }
        List<String> arguments = new LinkedList<String>();
        // put source track as job argument
        arguments.add(0, MediaPackageElementParser.getAsXml(sourceTrack));
        // put reference tracks as second argument
        if (referenceTracks != null) {
            arguments.add(1, MediaPackageElementParser.getArrayAsXml(Arrays.asList(referenceTracks)));
        }
        return serviceRegistry.createJob(getJobType(), Operation.SILENCE_DETECTION.toString(), arguments, jobload);
    } catch (ServiceRegistryException ex) {
        throw new SilenceDetectionFailedException("Unable to create job! " + ex.getMessage());
    } catch (MediaPackageException ex) {
        throw new SilenceDetectionFailedException("Unable to serialize track!");
    }
}

Example 63 with MediaPackageException

use of org.opencastproject.mediapackage.MediaPackageException in project opencast by opencast.

the class SilenceDetectionServiceImpl method process.

@Override
protected String process(Job job) throws SilenceDetectionFailedException, SmilException, MediaPackageException {
    if (Operation.SILENCE_DETECTION.toString().equals(job.getOperation())) {
        // get source track
        String sourceTrackXml = StringUtils.trimToNull(job.getArguments().get(0));
        if (sourceTrackXml == null) {
            throw new SilenceDetectionFailedException("Track not set!");
        }
        Track sourceTrack = (Track) MediaPackageElementParser.getFromXml(sourceTrackXml);
        // run detection on source track
        MediaSegments segments = runDetection(sourceTrack);
        // get reference tracks if any
        List<Track> referenceTracks = null;
        if (job.getArguments().size() > 1) {
            String referenceTracksXml = StringUtils.trimToNull(job.getArguments().get(1));
            if (referenceTracksXml != null) {
                referenceTracks = (List<Track>) MediaPackageElementParser.getArrayFromXml(referenceTracksXml);
            }
        }
        if (referenceTracks == null) {
            referenceTracks = Arrays.asList(sourceTrack);
        }
        // create smil XML as result
        try {
            return generateSmil(segments, referenceTracks).toXML();
        } catch (Exception ex) {
            throw new SmilException("Failed to create smil document.", ex);
        }
    }
    throw new SilenceDetectionFailedException("Can't handle this operation: " + job.getOperation());
}

Example 64 with MediaPackageException

use of org.opencastproject.mediapackage.MediaPackageException in project opencast by opencast.

the class DuplicateEventWorkflowOperationHandler method copyMediaPackage.

private MediaPackage copyMediaPackage(MediaPackage source, long copyNumber, String copyNumberPrefix) throws WorkflowOperationException {
    // We are not using MediaPackage.clone() here, since it does "too much" for us (e.g. copies all the attachments)
    MediaPackage destination;
    try {
        destination = MediaPackageBuilderFactory.newInstance().newMediaPackageBuilder().createNew();
    } catch (MediaPackageException e) {
        logger.error("Failed to create media package " + e.getLocalizedMessage());
        throw new WorkflowOperationException(e);
    }
    logger.info("Created mediapackage {}", destination);
    destination.setDate(source.getDate());
    destination.setSeries(source.getSeries());
    destination.setSeriesTitle(source.getSeriesTitle());
    destination.setDuration(source.getDuration());
    destination.setLanguage(source.getLanguage());
    destination.setLicense(source.getLicense());
    destination.setTitle(source.getTitle() + " (" + copyNumberPrefix + " " + copyNumber + ")");
    return destination;
}

Example 65 with MediaPackageException

use of org.opencastproject.mediapackage.MediaPackageException in project opencast by opencast.

the class ZipWorkflowOperationHandler method zip.

/**
 * Creates a zip archive of all elements in a mediapackage.
 *
 * @param mediaPackage
 *          the mediapackage to zip
 *
 * @return the zip file
 *
 * @throws IOException
 *           If an IO exception occurs
 * @throws NotFoundException
 *           If a file referenced in the mediapackage can not be found
 * @throws MediaPackageException
 *           If the mediapackage can not be serialized to xml
 * @throws WorkflowOperationException
 *           If the mediapackage is invalid
 */
protected File zip(MediaPackage mediaPackage, List<MediaPackageElementFlavor> flavorsToZip, boolean compress) throws IOException, NotFoundException, MediaPackageException, WorkflowOperationException {
    if (mediaPackage == null) {
        throw new WorkflowOperationException("Invalid mediapackage");
    }
    // Create the temp directory
    File mediaPackageDir = new File(tempStorageDir, mediaPackage.getIdentifier().compact());
    FileUtils.forceMkdir(mediaPackageDir);
    // Link or copy each matching element's file from the workspace to the temp directory
    MediaPackageSerializer serializer = new DefaultMediaPackageSerializerImpl(mediaPackageDir);
    MediaPackage clone = (MediaPackage) mediaPackage.clone();
    for (MediaPackageElement element : clone.getElements()) {
        // remove the element if it doesn't match the flavors to zip
        boolean remove = true;
        for (MediaPackageElementFlavor flavor : flavorsToZip) {
            if (flavor.matches(element.getFlavor())) {
                remove = false;
                break;
            }
        }
        if (remove) {
            clone.remove(element);
            continue;
        }
        File elementDir = new File(mediaPackageDir, element.getIdentifier());
        FileUtils.forceMkdir(elementDir);
        File workspaceFile = workspace.get(element.getURI());
        File linkedFile = FileSupport.link(workspaceFile, new File(elementDir, workspaceFile.getName()), true);
        try {
            element.setURI(serializer.encodeURI(linkedFile.toURI()));
        } catch (URISyntaxException e) {
            throw new MediaPackageException("unable to serialize a mediapackage element", e);
        }
    }
    // Add the manifest
    FileUtils.writeStringToFile(new File(mediaPackageDir, "manifest.xml"), MediaPackageParser.getAsXml(clone), "UTF-8");
    // Zip the directory
    File zip = new File(tempStorageDir, clone.getIdentifier().compact() + ".zip");
    int compressValue = compress ? ZipUtil.DEFAULT_COMPRESSION : ZipUtil.NO_COMPRESSION;
    long startTime = System.currentTimeMillis();
    ZipUtil.zip(new File[] { mediaPackageDir }, zip, true, compressValue);
    long stopTime = System.currentTimeMillis();
    logger.debug("Zip file creation took {} seconds", (stopTime - startTime) / 1000);
    // Remove the directory
    FileUtils.forceDelete(mediaPackageDir);
    // Return the zip
    return zip;
}