Examples of org.apache.lucene.gdata.data.ServerBaseFeed

org.apache.lucene.gdata.data.ServerBaseFeed
The GData-Server uses the GDATA-Client API for an interal representation of entries. These entities have dynamic elements like Links being generated using the requested URL.
Some components of the server also need additional infomation like the service type {@link org.apache.lucene.gdata.server.registry.ProvidedService} of the feed.All these information are encapsulated in the ServerBaseFeed decoration a concrete subl class of BaseFeed. The type of the {@link com.google.gdata.data.BaseEntry} contained it this feed will be passed to the ServerBaseFeedat creation time via the constructor. To retrieve the original entry call {@link ServerBaseFeed#getFeed()} returns a{@link com.google.gdata.data.BaseFeed} instance which can be casted into theactual type. To use the ServerBaseEntry for generation a provided format like RSS/ATOM the corresponding {@link com.google.gdata.data.ExtensionProfile} hasto be provided to the generation method. @author Simon Willnauer

     */
    @SuppressWarnings("unchecked")
    public BaseFeed getFeed(GDataRequest request, GDataResponse response)
            throws ServiceException {


        ServerBaseFeed feed = new ServerBaseFeed();
        feed.setId(request.getFeedId());
        feed.setStartIndex(request.getStartIndex());
        feed.setItemsPerPage(request.getItemsPerPage());
        feed.setServiceConfig(request.getConfigurator());
        try {
            /*
             * the strategy executes either a search or a direct access.
             */
            BaseFeed retVal = this.storage.getFeed(feed);

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            HttpServletResponse response) throws ServletException, IOException {
        super.processRequest(request, response);
        if (this.authenticated) {
            AdminService service = null;
            try {
                ServerBaseFeed feed = createFeedFromRequest(request);
                GDataAccount account = createRequestedAccount(request);


                GDataServerRegistry registry = GDataServerRegistry
                        .getRegistry();
                ServiceFactory serviceFactory = registry.lookup(

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        if(providedService == null){
            setError(GDataResponse.BAD_REQUEST,"no such service");
            throw new FeedHandlerException("no such service registered -- "+providedService);
        }
        try{
            ServerBaseFeed retVal = new ServerBaseFeed(GDataEntityBuilder.buildFeed(request.getReader(),provServiceInstance));
            retVal.setServiceConfig(provServiceInstance);
        return retVal;
        }catch (IOException e) {
            if(LOG.isInfoEnabled())
                LOG.info("Can not read from input stream - ",e);
            setError(GDataResponse.BAD_REQUEST,"Can not read from input stream");

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        searcher.close();
    }


    public void testSaveFeed() throws IOException, StorageException {
        String title = "myTitle";
        ServerBaseFeed feed = new ServerBaseFeed();
        feed.setId(feedId);
        feed.setTitle(new PlainTextConstruct(title));
        feed.setServiceType(service);
        feed.setServiceConfig(this.configurator);
        StorageFeedWrapper wrapper = new StorageFeedWrapper(feed,username);
        this.modifier.createFeed(wrapper);
        
        IndexSearcher searcher = new IndexSearcher(this.dir);
        Query q = new TermQuery(new Term(StorageFeedWrapper.FIELD_FEED_ID,

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     * @throws IOException
     * @throws StorageException
     */
    public void testUpdateFeed() throws IOException, StorageException {
        testSaveFeed();
        ServerBaseFeed feed = new ServerBaseFeed();
        String title = "myTitle";
        String newusername = "doug";
        feed.setTitle(new PlainTextConstruct(title));
        feed.setId(feedId);
        feed.setServiceType(service);
        feed.setServiceConfig(this.configurator);
        StorageFeedWrapper wrapper = new StorageFeedWrapper(feed,newusername);
        this.modifier.updateFeed(wrapper);
        IndexSearcher searcher = new IndexSearcher(this.dir);
        Query q = new TermQuery(new Term(StorageFeedWrapper.FIELD_FEED_ID,
                feedId));

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    public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            super.processRequest(request,response);
            if(this.authenticated){
                AdminService service = null;
            try {
                ServerBaseFeed feed = createDeleteFeed(request);
                
                GDataServerRegistry registry = GDataServerRegistry.getRegistry();
                ServiceFactory serviceFactory = registry.lookup(ServiceFactory.class,ComponentType.SERVICEFACTORY);
                if(serviceFactory == null){
                    setError(GDataResponse.SERVER_ERROR,"required component is not available");

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        String feedId = request.getParameter("feedid");
        if(feedId == null){
            setError(GDataResponse.BAD_REQUEST,"No feed id specified");
            throw new FeedHandlerException("no feed Id specified");
        }
        ServerBaseFeed retVal = new ServerBaseFeed();
        retVal.setId(feedId);
        return retVal;
    }

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                    "Feed query returned not a unique result");
        if (set.size() == 0)
            throw new StorageException("no feed with feedID: " + feedId
                    + " stored -- query returned no result");


        ServerBaseFeed feed = (ServerBaseFeed) set.next();
        refreshPersistentObject(feed);
        ObjectSet entrySet = getEnriesForFeedID(feed.getId());
        try {
            this.container.delete(feed);
            this.container.delete(feed.getFeed());
            for (Object object : entrySet) {
                refreshPersistentObject(object);
                this.container.delete(object);
            }

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            throw new StorageException("Query for feed id " + feed.getId()
                    + " returns more than one result");
        if (set.size() < 1)
            throw new StorageException("can not find feed for given feed id -- "
                + feed.getId());
        ServerBaseFeed result = set.next();
        refreshPersistentObject(result);
        BaseFeed oldFeed = result.getFeed();
        result.setAccount(account);
        result.setFeed(feed.getFeed());
        try {
            this.container.delete(oldFeed);
            this.container.set(result);
            this.container.commit();
        } catch (Exception e) {

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                    + " returns more than one result");
        if (feed.size() < 1)
            throw new StorageException("can not find feed for given feed id -- "
                + feedId);
        
        ServerBaseFeed result = feed.next();
        if(LOG.isInfoEnabled())
            LOG.info("Retrieved Service for feed -- serviceType: "+result.getServiceType());
        return result.getServiceType();
    }

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