Class LuceneStorage

src/main/java/com/trsst/server/LuceneStorage.java:66–802

Manages storage and indexing of feed and entry documents, and delegates storage of resources to another Storage instance. @author mpowers

 * @author mpowers
 */
public class LuceneStorage implements Storage {

    /**
     * Shared abdera instance.
     */
    private Abdera abdera;

    /**
     * Deletable storage delegate: used for caching feeds fetched from other
     * servers. Basically, if this storage went away, it would be no big deal.
     */
    private Storage cacheStorage;

    /**
     * Persistent storage delegate: used for feeds managed by this server. This
     * is basically the user's primary backup of all entries created.
     */
    private Storage persistentStorage;

    /*
     * Lucene readers/writers are thread-safe and shared instances are
     * recommended.
     */

    private IndexWriter writer;
    private IndexReader reader;
    private Analyzer analyzer;

    /**
     * Default constructor manages individual feed, entry, and resource
     * documents with a FileStorage.
     * 
     * @throws IOException
     */
    public LuceneStorage() throws IOException {
        this(new FileStorage());
    }

    /**
     * Manages index and calls to the specified storage delegate to handle
     * individual feed, entry, and resource persistence.
     * 
     * @param delegate
     * @throws IOException
     */
    public LuceneStorage(Storage delegate) throws IOException {
        this(delegate, null);
    }

    /**
     * Manages index and calls to the specified storage delegate to handle
     * individual feed, entry, and resource persistence. Any feeds managed by
     * this server will call to persistent storage rather than cache storage.
     * 
     * @param delegate
     * @throws IOException
     */
    public LuceneStorage(Storage cache, Storage persistent) throws IOException {