public List<Book> booksForPattern(String pattern) {
    if (pattern == null || pattern.length() == 0) {
      return Collections.emptyList();
    }
    pattern = pattern.toLowerCase();

    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      if (b.matches(pattern)) {
        filtered.add(b);
      }
    }
    return filtered;
  }
 public List<String> titlesForTitlePrefix(String prefix, int limit) {
   if (limit <= 0) {
     return Collections.emptyList();
   }
   final ArrayList<String> titles = new ArrayList<String>(limit);
   synchronized (myBooksByFile) {
     for (Book b : myBooksByFile.values()) {
       if (prefix.equals(TitleUtil.firstTitleLetter(b))) {
         titles.add(b.getTitle());
         if (--limit == 0) {
           break;
         }
       }
     }
   }
   return titles;
 }
 public List<String> titlesForTag(Tag tag, int limit) {
   if (limit <= 0) {
     return Collections.emptyList();
   }
   final ArrayList<String> titles = new ArrayList<String>(limit);
   final boolean isNull = Tag.NULL.equals(tag);
   synchronized (myBooksByFile) {
     for (Book b : myBooksByFile.values()) {
       if (isNull ? b.tags().isEmpty() : b.tags().contains(tag)) {
         titles.add(b.getTitle());
         if (--limit == 0) {
           break;
         }
       }
     }
   }
   return titles;
 }
 public List<String> titlesForSeries(String series, int limit) {
   if (limit <= 0) {
     return Collections.emptyList();
   }
   final ArrayList<String> titles = new ArrayList<String>(limit);
   synchronized (myBooksByFile) {
     for (Book b : myBooksByFile.values()) {
       final SeriesInfo info = b.getSeriesInfo();
       if (info != null && series.equals(info.Title)) {
         titles.add(b.getTitle());
         if (--limit == 0) {
           break;
         }
       }
     }
   }
   return titles;
 }
 public List<String> titlesForSeriesAndAuthor(String series, Author author, int limit) {
   if (limit <= 0) {
     return Collections.emptyList();
   }
   final boolean isNull = Author.NULL.equals(author);
   final ArrayList<String> titles = new ArrayList<String>(limit);
   synchronized (myBooksByFile) {
     for (Book b : myBooksByFile.values()) {
       final List<Author> bookAuthors = b.authors();
       final SeriesInfo info = b.getSeriesInfo();
       if (info != null
           && series.equals(info.Title)
           && (isNull && bookAuthors.isEmpty() || bookAuthors.contains(author))) {
         titles.add(b.getTitle());
         if (--limit == 0) {
           break;
         }
       }
     }
   }
   return titles;
 }
 public List<Bookmark> invisibleBookmarks(Book book) {
   final List<Bookmark> list = myDatabase.loadBookmarks(book.getId(), false);
   Collections.sort(list, new Bookmark.ByTimeComparator());
   return list;
 }
 public BookCollection(BooksDatabase db, List<String> bookDirectories) {
   myDatabase = db;
   BookDirectories = Collections.unmodifiableList(new ArrayList<String>(bookDirectories));
 }
public class BookCollection extends AbstractBookCollection {
  private final BooksDatabase myDatabase;
  public final List<String> BookDirectories;

  private final Map<ZLFile, Book> myBooksByFile =
      Collections.synchronizedMap(new LinkedHashMap<ZLFile, Book>());
  private final Map<Long, Book> myBooksById =
      Collections.synchronizedMap(new HashMap<Long, Book>());
  private final List<String> myFilesToRescan =
      Collections.synchronizedList(new LinkedList<String>());

  private volatile Status myStatus = Status.NotStarted;

  public BookCollection(BooksDatabase db, List<String> bookDirectories) {
    myDatabase = db;
    BookDirectories = Collections.unmodifiableList(new ArrayList<String>(bookDirectories));
  }

  public int size() {
    return myBooksByFile.size();
  }

  public Book getBookByFile(ZLFile bookFile) {
    if (bookFile == null) {
      return null;
    }
    final FormatPlugin plugin = PluginCollection.Instance().getPlugin(bookFile);
    if (plugin == null) {
      return null;
    }
    try {
      bookFile = plugin.realBookFile(bookFile);
    } catch (BookReadingException e) {
      return null;
    }

    Book book = myBooksByFile.get(bookFile);
    if (book != null) {
      return book;
    }

    final ZLPhysicalFile physicalFile = bookFile.getPhysicalFile();
    if (physicalFile != null && !physicalFile.exists()) {
      return null;
    }

    final FileInfoSet fileInfos = new FileInfoSet(myDatabase, bookFile);

    book = myDatabase.loadBookByFile(fileInfos.getId(bookFile), bookFile);
    if (book != null) {
      book.loadLists(myDatabase);
    }

    if (book != null && fileInfos.check(physicalFile, physicalFile != bookFile)) {
      saveBook(book, false);
      // saved
      addBook(book, false);
      return book;
    }
    fileInfos.save();

    try {
      if (book == null) {
        book = new Book(bookFile);
      } else {
        book.readMetaInfo();
      }
    } catch (BookReadingException e) {
      return null;
    }

    saveBook(book, false);
    return book;
  }

  public Book getBookById(long id) {
    Book book = myBooksById.get(id);
    if (book != null) {
      return book;
    }

    book = myDatabase.loadBook(id);
    if (book == null) {
      return null;
    }
    book.loadLists(myDatabase);

    final ZLFile bookFile = book.File;
    final ZLPhysicalFile physicalFile = bookFile.getPhysicalFile();
    if (physicalFile == null) {
      // loaded from db
      addBook(book, false);
      return book;
    }
    if (!physicalFile.exists()) {
      return null;
    }

    FileInfoSet fileInfos = new FileInfoSet(myDatabase, physicalFile);
    if (fileInfos.check(physicalFile, physicalFile != bookFile)) {
      // loaded from db
      addBook(book, false);
      return book;
    }
    fileInfos.save();

    try {
      book.readMetaInfo();
      // loaded from db
      addBook(book, false);
      return book;
    } catch (BookReadingException e) {
      return null;
    }
  }

  private void addBook(Book book, boolean force) {
    if (book == null || book.getId() == -1) {
      return;
    }

    synchronized (myBooksByFile) {
      final Book existing = myBooksByFile.get(book.File);
      if (existing == null) {
        myBooksByFile.put(book.File, book);
        myBooksById.put(book.getId(), book);
        fireBookEvent(BookEvent.Added, book);
      } else if (force) {
        existing.updateFrom(book);
        fireBookEvent(BookEvent.Updated, existing);
      }
    }
  }

  public boolean saveBook(Book book, boolean force) {
    if (book == null) {
      return false;
    }

    final boolean result = book.save(myDatabase, force);
    addBook(book, true);
    return result;
  }

  public void removeBook(Book book, boolean deleteFromDisk) {
    synchronized (myBooksByFile) {
      myBooksByFile.remove(book.File);
      myBooksById.remove(book.getId());

      final List<Long> ids = myDatabase.loadRecentBookIds();
      if (ids.remove(book.getId())) {
        myDatabase.saveRecentBookIds(ids);
      }
      if (deleteFromDisk) {
        book.File.getPhysicalFile().delete();
      }
    }
    fireBookEvent(BookEvent.Removed, book);
  }

  public Status status() {
    return myStatus;
  }

  public List<Book> books() {
    synchronized (myBooksByFile) {
      return new ArrayList<Book>(myBooksByFile.values());
    }
  }

  public List<Book> booksForAuthor(Author author) {
    final boolean isNull = Author.NULL.equals(author);
    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      final List<Author> bookAuthors = b.authors();
      if (isNull && bookAuthors.isEmpty() || bookAuthors.contains(author)) {
        filtered.add(b);
      }
    }
    return filtered;
  }

  public List<Book> booksForTag(Tag tag) {
    final boolean isNull = Tag.NULL.equals(tag);
    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      final List<Tag> bookTags = b.tags();
      if (isNull && bookTags.isEmpty() || bookTags.contains(tag)) {
        filtered.add(b);
      }
    }
    return filtered;
  }

  public List<Book> booksForSeries(String series) {
    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      final SeriesInfo info = b.getSeriesInfo();
      if (info != null && series.equals(info.Title)) {
        filtered.add(b);
      }
    }
    return filtered;
  }

  public List<Book> booksForSeriesAndAuthor(String series, Author author) {
    final boolean isNull = Author.NULL.equals(author);
    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      final List<Author> bookAuthors = b.authors();
      final SeriesInfo info = b.getSeriesInfo();
      if (info != null
          && series.equals(info.Title)
          && (isNull && bookAuthors.isEmpty() || bookAuthors.contains(author))) {
        filtered.add(b);
      }
    }
    return filtered;
  }

  public List<Book> booksForTitlePrefix(String prefix) {
    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      if (prefix.equals(TitleUtil.firstTitleLetter(b))) {
        filtered.add(b);
      }
    }
    return filtered;
  }

  public boolean hasBooksForPattern(String pattern) {
    if (pattern == null || pattern.length() == 0) {
      return false;
    }
    pattern = pattern.toLowerCase();

    for (Book b : books()) {
      if (b.matches(pattern)) {
        return true;
      }
    }
    return false;
  }

  public List<Book> booksForPattern(String pattern) {
    if (pattern == null || pattern.length() == 0) {
      return Collections.emptyList();
    }
    pattern = pattern.toLowerCase();

    final LinkedList<Book> filtered = new LinkedList<Book>();
    for (Book b : books()) {
      if (b.matches(pattern)) {
        filtered.add(b);
      }
    }
    return filtered;
  }

  public List<Book> recentBooks() {
    return books(myDatabase.loadRecentBookIds());
  }

  public List<Book> favorites() {
    return books(myDatabase.loadFavoriteIds());
  }

  private List<Book> books(List<Long> ids) {
    final List<Book> bookList = new ArrayList<Book>(ids.size());
    for (long id : ids) {
      final Book book = getBookById(id);
      if (book != null) {
        bookList.add(book);
      }
    }
    return bookList;
  }

  public List<Author> authors() {
    final Set<Author> authors = new TreeSet<Author>();
    synchronized (myBooksByFile) {
      for (Book book : myBooksByFile.values()) {
        final List<Author> bookAuthors = book.authors();
        if (bookAuthors.isEmpty()) {
          authors.add(Author.NULL);
        } else {
          authors.addAll(bookAuthors);
        }
      }
    }
    return new ArrayList<Author>(authors);
  }

  public List<Tag> tags() {
    final Set<Tag> tags = new HashSet<Tag>();
    synchronized (myBooksByFile) {
      for (Book book : myBooksByFile.values()) {
        final List<Tag> bookTags = book.tags();
        if (bookTags.isEmpty()) {
          tags.add(Tag.NULL);
        } else {
          for (Tag t : bookTags) {
            for (; t != null; t = t.Parent) {
              tags.add(t);
            }
          }
        }
      }
    }
    return new ArrayList<Tag>(tags);
  }

  public boolean hasSeries() {
    synchronized (myBooksByFile) {
      for (Book book : myBooksByFile.values()) {
        if (book.getSeriesInfo() != null) {
          return true;
        }
      }
    }
    return false;
  }

  public List<String> series() {
    final Set<String> series = new TreeSet<String>();
    synchronized (myBooksByFile) {
      for (Book book : myBooksByFile.values()) {
        final SeriesInfo info = book.getSeriesInfo();
        if (info != null) {
          series.add(info.Title);
        }
      }
    }
    return new ArrayList<String>(series);
  }

  public List<String> titles() {
    synchronized (myBooksByFile) {
      final List<String> titles = new ArrayList<String>(myBooksByFile.size());
      for (Book book : myBooksByFile.values()) {
        titles.add(book.getTitle());
      }
      return titles;
    }
  }

  public List<String> titlesForAuthor(Author author, int limit) {
    if (limit <= 0) {
      return Collections.emptyList();
    }
    final ArrayList<String> titles = new ArrayList<String>(limit);
    final boolean isNull = Author.NULL.equals(author);
    synchronized (myBooksByFile) {
      for (Book b : myBooksByFile.values()) {
        if (isNull ? b.authors().isEmpty() : b.authors().contains(author)) {
          titles.add(b.getTitle());
          if (--limit == 0) {
            break;
          }
        }
      }
    }
    return titles;
  }

  public List<String> titlesForSeries(String series, int limit) {
    if (limit <= 0) {
      return Collections.emptyList();
    }
    final ArrayList<String> titles = new ArrayList<String>(limit);
    synchronized (myBooksByFile) {
      for (Book b : myBooksByFile.values()) {
        final SeriesInfo info = b.getSeriesInfo();
        if (info != null && series.equals(info.Title)) {
          titles.add(b.getTitle());
          if (--limit == 0) {
            break;
          }
        }
      }
    }
    return titles;
  }

  public List<String> titlesForSeriesAndAuthor(String series, Author author, int limit) {
    if (limit <= 0) {
      return Collections.emptyList();
    }
    final boolean isNull = Author.NULL.equals(author);
    final ArrayList<String> titles = new ArrayList<String>(limit);
    synchronized (myBooksByFile) {
      for (Book b : myBooksByFile.values()) {
        final List<Author> bookAuthors = b.authors();
        final SeriesInfo info = b.getSeriesInfo();
        if (info != null
            && series.equals(info.Title)
            && (isNull && bookAuthors.isEmpty() || bookAuthors.contains(author))) {
          titles.add(b.getTitle());
          if (--limit == 0) {
            break;
          }
        }
      }
    }
    return titles;
  }

  public List<String> titlesForTag(Tag tag, int limit) {
    if (limit <= 0) {
      return Collections.emptyList();
    }
    final ArrayList<String> titles = new ArrayList<String>(limit);
    final boolean isNull = Tag.NULL.equals(tag);
    synchronized (myBooksByFile) {
      for (Book b : myBooksByFile.values()) {
        if (isNull ? b.tags().isEmpty() : b.tags().contains(tag)) {
          titles.add(b.getTitle());
          if (--limit == 0) {
            break;
          }
        }
      }
    }
    return titles;
  }

  public List<String> titlesForTitlePrefix(String prefix, int limit) {
    if (limit <= 0) {
      return Collections.emptyList();
    }
    final ArrayList<String> titles = new ArrayList<String>(limit);
    synchronized (myBooksByFile) {
      for (Book b : myBooksByFile.values()) {
        if (prefix.equals(TitleUtil.firstTitleLetter(b))) {
          titles.add(b.getTitle());
          if (--limit == 0) {
            break;
          }
        }
      }
    }
    return titles;
  }

  public Book getRecentBook(int index) {
    List<Long> recentIds = myDatabase.loadRecentBookIds();
    return recentIds.size() > index ? getBookById(recentIds.get(index)) : null;
  }

  public void addBookToRecentList(Book book) {
    final List<Long> ids = myDatabase.loadRecentBookIds();
    final Long bookId = book.getId();
    ids.remove(bookId);
    ids.add(0, bookId);
    if (ids.size() > 12) {
      ids.remove(12);
    }
    myDatabase.saveRecentBookIds(ids);
  }

  public boolean hasFavorites() {
    return myDatabase.hasFavorites();
  }

  public boolean isFavorite(Book book) {
    if (book == null) {
      return false;
    }
    return myDatabase.isFavorite(book.getId());
  }

  public void setBookFavorite(Book book, boolean favorite) {
    if (favorite) {
      myDatabase.addToFavorites(book.getId());
    } else {
      myDatabase.removeFromFavorites(book.getId());
    }
    fireBookEvent(BookEvent.Updated, book);
  }

  private void setStatus(Status status) {
    myStatus = status;
    fireBuildEvent(status);
  }

  public synchronized void startBuild() {
    if (myStatus != Status.NotStarted) {
      return;
    }
    setStatus(Status.Started);

    final Thread builder =
        new Thread("Library.build") {
          public void run() {
            try {
              build();
              setStatus(Status.Succeeded);
            } catch (Throwable t) {
              setStatus(Status.Failed);
            } finally {
              synchronized (myFilesToRescan) {
                processFilesQueue();
              }
            }
          }
        };
    builder.setPriority(Thread.MIN_PRIORITY);
    builder.start();
  }

  public void rescan(String path) {
    synchronized (myFilesToRescan) {
      myFilesToRescan.add(path);
      processFilesQueue();
    }
  }

  private void processFilesQueue() {
    synchronized (myFilesToRescan) {
      if (!myStatus.IsCompleted) {
        return;
      }

      final Set<ZLFile> filesToRemove = new HashSet<ZLFile>();
      for (String path : myFilesToRescan) {
        path = new ZLPhysicalFile(new File(path)).getPath();
        synchronized (myBooksByFile) {
          for (ZLFile f : myBooksByFile.keySet()) {
            if (f.getPath().startsWith(path)) {
              filesToRemove.add(f);
            }
          }
        }
      }

      for (ZLFile file : collectPhysicalFiles(myFilesToRescan)) {
        // TODO:
        // collect books from archives
        // rescan files and check book id
        filesToRemove.remove(file);
        final Book book = getBookByFile(file);
        if (book != null) {
          saveBook(book, false);
        }
      }

      for (ZLFile f : filesToRemove) {
        synchronized (myBooksByFile) {
          final Book book = myBooksByFile.remove(f);
          if (book != null) {
            myBooksById.remove(book.getId());
            fireBookEvent(BookEvent.Removed, book);
          }
        }
      }

      myFilesToRescan.clear();
    }
  }

  private void build() {
    // Step 0: get database books marked as "existing"
    final FileInfoSet fileInfos = new FileInfoSet(myDatabase);
    final Map<Long, Book> savedBooksByFileId = myDatabase.loadBooks(fileInfos, true);
    final Map<Long, Book> savedBooksByBookId = new HashMap<Long, Book>();
    for (Book b : savedBooksByFileId.values()) {
      savedBooksByBookId.put(b.getId(), b);
    }

    // Step 1: check if files corresponding to "existing" books really exists;
    //         add books to library if yes (and reload book info if needed);
    //         remove from recent/favorites list if no;
    //         collect newly "orphaned" books
    final Set<Book> orphanedBooks = new HashSet<Book>();
    final Set<ZLPhysicalFile> physicalFiles = new HashSet<ZLPhysicalFile>();
    int count = 0;
    for (Book book : savedBooksByFileId.values()) {
      final ZLPhysicalFile file = book.File.getPhysicalFile();
      if (file != null) {
        physicalFiles.add(file);
      }
      if (file != book.File && file != null && file.getPath().endsWith(".epub")) {
        continue;
      }
      if (book.File.exists()) {
        boolean doAdd = true;
        if (file == null) {
          continue;
        }
        if (!fileInfos.check(file, true)) {
          try {
            book.readMetaInfo();
            saveBook(book, false);
          } catch (BookReadingException e) {
            doAdd = false;
          }
          file.setCached(false);
        }
        if (doAdd) {
          // loaded from db
          addBook(book, false);
        }
      } else {
        orphanedBooks.add(book);
      }
    }
    myDatabase.setExistingFlag(orphanedBooks, false);

    // Step 2: collect books from physical files; add new, update already added,
    //         unmark orphaned as existing again, collect newly added
    final Map<Long, Book> orphanedBooksByFileId = myDatabase.loadBooks(fileInfos, false);
    final Set<Book> newBooks = new HashSet<Book>();

    final List<ZLPhysicalFile> physicalFilesList = collectPhysicalFiles(BookDirectories);
    for (ZLPhysicalFile file : physicalFilesList) {
      if (physicalFiles.contains(file)) {
        continue;
      }
      collectBooks(
          file,
          fileInfos,
          savedBooksByFileId,
          orphanedBooksByFileId,
          newBooks,
          !fileInfos.check(file, true));
      file.setCached(false);
    }

    // Step 3: add help file
    try {
      final ZLFile helpFile = BookUtil.getHelpFile();
      Book helpBook = savedBooksByFileId.get(fileInfos.getId(helpFile));
      if (helpBook == null) {
        helpBook = new Book(helpFile);
      }
      saveBook(helpBook, false);
      // saved
      addBook(helpBook, false);
    } catch (BookReadingException e) {
      // that's impossible
      e.printStackTrace();
    }

    // Step 4: save changes into database
    fileInfos.save();

    myDatabase.executeAsTransaction(
        new Runnable() {
          public void run() {
            for (Book book : newBooks) {
              saveBook(book, false);
            }
          }
        });
    myDatabase.setExistingFlag(newBooks, true);
  }

  private List<ZLPhysicalFile> collectPhysicalFiles(List<String> paths) {
    final Queue<ZLPhysicalFile> fileQueue = new LinkedList<ZLPhysicalFile>();
    final HashSet<ZLPhysicalFile> dirSet = new HashSet<ZLPhysicalFile>();
    final LinkedList<ZLPhysicalFile> fileList = new LinkedList<ZLPhysicalFile>();

    for (String p : paths) {
      fileQueue.offer(new ZLPhysicalFile(new File(p)));
    }

    while (!fileQueue.isEmpty()) {
      final ZLPhysicalFile entry = fileQueue.poll();
      if (!entry.exists()) {
        continue;
      }
      if (entry.isDirectory()) {
        if (dirSet.contains(entry)) {
          continue;
        }
        dirSet.add(entry);
        for (ZLFile file : entry.children()) {
          fileQueue.add((ZLPhysicalFile) file);
        }
      } else {
        entry.setCached(true);
        fileList.add(entry);
      }
    }

    return fileList;
  }

  private void collectBooks(
      ZLFile file,
      FileInfoSet fileInfos,
      Map<Long, Book> savedBooksByFileId,
      Map<Long, Book> orphanedBooksByFileId,
      Set<Book> newBooks,
      boolean doReadMetaInfo) {
    final long fileId = fileInfos.getId(file);
    if (savedBooksByFileId.get(fileId) != null) {
      return;
    }

    try {
      final Book book = orphanedBooksByFileId.get(fileId);
      if (book != null) {
        if (doReadMetaInfo) {
          book.readMetaInfo();
        }
        newBooks.add(book);
        return;
      }
    } catch (BookReadingException e) {
      // ignore
    }

    try {
      final Book book = new Book(file);
      newBooks.add(book);
      return;
    } catch (BookReadingException e) {
      // ignore
    }

    if (file.isArchive()) {
      for (ZLFile entry : fileInfos.archiveEntries(file)) {
        collectBooks(
            entry, fileInfos, savedBooksByFileId, orphanedBooksByFileId, newBooks, doReadMetaInfo);
      }
    }
  }

  public List<Bookmark> bookmarks(long fromId, int limitCount) {
    return myDatabase.loadVisibleBookmarks(fromId, limitCount);
  }

  public List<Bookmark> invisibleBookmarks(Book book) {
    final List<Bookmark> list = myDatabase.loadBookmarks(book.getId(), false);
    Collections.sort(list, new Bookmark.ByTimeComparator());
    return list;
  }

  public void saveBookmark(Bookmark bookmark) {
    if (bookmark != null) {
      bookmark.setId(myDatabase.saveBookmark(bookmark));
    }
  }

  public void deleteBookmark(Bookmark bookmark) {
    if (bookmark != null && bookmark.getId() != -1) {
      myDatabase.deleteBookmark(bookmark);
    }
  }

  public ZLTextPosition getStoredPosition(long bookId) {
    return myDatabase.getStoredPosition(bookId);
  }

  public void storePosition(long bookId, ZLTextPosition position) {
    if (bookId != -1) {
      myDatabase.storePosition(bookId, position);
    }
  }

  public boolean isHyperlinkVisited(Book book, String linkId) {
    return book.isHyperlinkVisited(myDatabase, linkId);
  }

  public void markHyperlinkAsVisited(Book book, String linkId) {
    book.markHyperlinkAsVisited(myDatabase, linkId);
  }
}
Beispiel #9
0
 public List<Tag> tags() {
   return (myTags != null) ? Collections.unmodifiableList(myTags) : Collections.<Tag>emptyList();
 }
Beispiel #10
0
 public List<Author> authors() {
   return (myAuthors != null)
       ? Collections.unmodifiableList(myAuthors)
       : Collections.<Author>emptyList();
 }