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;
}
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 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 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);
}