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;
}
}
