Examples with FeedGenerator org.opencastproject.feed.api.FeedGenerator used on opensource projects

Example 1 with FeedGenerator

use of org.opencastproject.feed.api.FeedGenerator in project opencast by opencast.

the class FeedRegistrationScanner method install.

/**
 * {@inheritDoc}
 *
 * @see org.apache.felix.fileinstall.ArtifactInstaller#install(java.io.File)
 */
@Override
public void install(File artifact) throws Exception {
    logger.info("Installing a feed from '{}'", artifact.getName());
    Properties props = new Properties();
    FileInputStream in = null;
    try {
        in = new FileInputStream(artifact);
        props.load(in);
    } finally {
        IOUtils.closeQuietly(in);
    }
    // Always include the server URL obtained from the bundle context
    props.put("org.opencastproject.server.url", bundleContext.getProperty("org.opencastproject.server.url"));
    Class<?> clazz = getClass().getClassLoader().loadClass(props.getProperty(FEED_CLASS));
    FeedGenerator generator = (FeedGenerator) clazz.newInstance();
    generator.setSearchService(searchService);
    generator.setSeriesService(seriesService);
    generator.initialize(props);
    ServiceRegistration<?> reg = bundleContext.registerService(FeedGenerator.class.getName(), generator, null);
    generators.put(artifact, reg);
    sumInstalledFiles++;
    // Determine the number of available profiles
    String[] filesInDirectory = artifact.getParentFile().list(new FilenameFilter() {

        @Override
        public boolean accept(File arg0, String name) {
            return name.endsWith(".properties");
        }
    });
    // Once all profiles have been loaded, announce readiness
    if (filesInDirectory.length == sumInstalledFiles) {
        Dictionary<String, String> properties = new Hashtable<>();
        properties.put(ARTIFACT, "feed");
        logger.debug("Indicating readiness of feed");
        bundleContext.registerService(ReadinessIndicator.class.getName(), new ReadinessIndicator(), properties);
        logger.info("All {} feeds installed", filesInDirectory.length);
    } else {
        logger.debug("{} of {} feeds installed", sumInstalledFiles, filesInDirectory.length);
    }
}

Example 2 with FeedGenerator

use of org.opencastproject.feed.api.FeedGenerator in project opencast by opencast.

the class FeedServiceImpl method getFeed.

/*
   * Note: We're using Regex matching for the path here, instead of normal JAX-RS paths.  Previously this class was a servlet,
   * which was fine except that it had auth issues.  Removing the servlet fixed the auth issues, but then the paths (as written
   * in the RestQuery docs) don't work because  JAX-RS does not support having "/" characters as part of the variable's value.
   *
   * So, what we've done instead is match everything that comes in under the /feeds/ namespace, and then substring it out the way
   * the old servlet code did.  But without the servlet, or auth issues :)
   */
@GET
@Produces(MediaType.TEXT_XML)
@Path("{query: .*}")
// FIXME: These Opencast REST classes do not support this path style, and need to have that support added
@RestQuery(name = "getFeed", description = "Gets an Atom or RSS feed", pathParameters = { @RestParameter(description = "The feed type", name = "type", type = Type.STRING, isRequired = true), @RestParameter(description = "The feed version", name = "version", type = Type.STRING, isRequired = true), @RestParameter(description = "The feed query", name = "query", type = Type.STRING, isRequired = true) }, reponses = { @RestResponse(description = "Return the feed of the appropriate type", responseCode = HttpServletResponse.SC_OK), @RestResponse(description = "", responseCode = HttpServletResponse.SC_BAD_REQUEST), @RestResponse(description = "", responseCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR) }, returnDescription = "")
public Response getFeed(@Context HttpServletRequest request) {
    String contentType = null;
    logger.debug("Requesting RSS or Atom feed.");
    FeedInfo feedInfo = null;
    Organization organization = securityService.getOrganization();
    // Try to extract requested feed type and content
    try {
        feedInfo = extractFeedInfo(request);
    } catch (Exception e) {
        return Response.status(Status.BAD_REQUEST).build();
    }
    // Set the content type
    if (feedInfo.getType().equals(Feed.Type.Atom))
        contentType = "application/atom+xml";
    else if (feedInfo.getType().equals(Feed.Type.RSS))
        contentType = "application/rss+xml";
    // Have a feed generator create the requested feed
    Feed feed = null;
    for (FeedGenerator generator : feeds) {
        if (generator.accept(feedInfo.getQuery())) {
            feed = generator.createFeed(feedInfo.getType(), feedInfo.getQuery(), feedInfo.getSize(), organization);
            if (feed == null) {
                return Response.serverError().build();
            }
            break;
        }
    }
    // Have we found a feed generator?
    if (feed == null) {
        logger.debug("RSS/Atom feed could not be generated");
        return Response.status(Status.NOT_FOUND).build();
    }
    // Set character encoding
    Variant v = new Variant(MediaType.valueOf(contentType), null, feed.getEncoding());
    String outputString = null;
    try {
        if (feedInfo.getType().equals(Feed.Type.RSS)) {
            logger.debug("Creating RSS feed output.");
            SyndFeedOutput output = new SyndFeedOutput();
            outputString = output.outputString(new RomeRssFeed(feed, feedInfo));
        } else {
            logger.debug("Creating Atom feed output.");
            WireFeedOutput output = new WireFeedOutput();
            outputString = output.outputString(new RomeAtomFeed(feed, feedInfo));
        }
    } catch (FeedException e) {
        return Response.serverError().build();
    }
    return Response.ok(outputString, v).build();
}