Examples with NoSuchFileException java.nio.file.NoSuchFileException used on opensource projects

Example 76 with NoSuchFileException

use of java.nio.file.NoSuchFileException in project neo4j by neo4j.

the class CommonAbstractStore method checkAndLoadStorage.

/**
 * This method is called by constructors. Checks the header record and loads the store.
 * <p>
 * Note: This method will map the file with the page cache. The store file must not
 * be accessed directly until it has been unmapped - the store file must only be
 * accessed through the page cache.
 * @param createIfNotExists If true, creates and initialises the store file if it does not exist already. If false,
 * this method will instead throw an exception in that situation.
 * @return {@code true} if the store was created as part of this call, otherwise {@code false} if it already existed.
 */
private boolean checkAndLoadStorage(boolean createIfNotExists, CursorContext cursorContext) {
    try {
        determineRecordSize(storeHeaderFormat.generateHeader());
        if (getNumberOfReservedLowIds() > 0) {
            // This store has a store-specific header so we have read it before we can be sure that we can map it with correct page size.
            // Try to open the store file (w/o creating if it doesn't exist), with page size for the configured header value.
            HEADER defaultHeader = storeHeaderFormat.generateHeader();
            pagedFile = pageCache.map(storageFile, filePageSize, databaseName, openOptions.newWith(ANY_PAGE_SIZE));
            HEADER readHeader = readStoreHeaderAndDetermineRecordSize(pagedFile, cursorContext);
            if (!defaultHeader.equals(readHeader)) {
                // The header that we read was different from the default one so unmap
                pagedFile.close();
                pagedFile = null;
            }
        }
        if (pagedFile == null) {
            // Map the file with the correct page size
            pagedFile = pageCache.map(storageFile, filePageSize, databaseName, openOptions);
        }
    } catch (NoSuchFileException | StoreNotFoundException e) {
        if (pagedFile != null) {
            pagedFile.close();
            pagedFile = null;
        }
        if (createIfNotExists) {
            try {
                // Generate the header and determine correct page size
                determineRecordSize(storeHeaderFormat.generateHeader());
                // Create the id generator, and also open it because some stores may need the id generator when initializing their store
                idGenerator = idGeneratorFactory.create(pageCache, idFile, idType, getNumberOfReservedLowIds(), false, recordFormat.getMaxId(), readOnlyChecker, configuration, cursorContext, openOptions);
                // Map the file (w/ the CREATE flag) and initialize the header
                pagedFile = pageCache.map(storageFile, filePageSize, databaseName, openOptions.newWith(CREATE));
                initialiseNewStoreFile(cursorContext);
                // <-- successfully created and initialized
                return true;
            } catch (IOException e1) {
                e.addSuppressed(e1);
            }
        }
        if (e instanceof StoreNotFoundException) {
            throw (StoreNotFoundException) e;
        }
        throw new StoreNotFoundException("Store file not found: " + storageFile, e);
    } catch (IOException e) {
        throw new UnderlyingStorageException("Unable to open store file: " + storageFile, e);
    }
    return false;
}

Example 77 with NoSuchFileException

use of java.nio.file.NoSuchFileException in project neo4j by neo4j.

the class DumpCommandIT method shouldGiveAClearMessageIfTheArchivesParentDoesntExist.

@Test
void shouldGiveAClearMessageIfTheArchivesParentDoesntExist() throws Exception {
    doThrow(new NoSuchFileException(archive.getParent().toString())).when(dumper).dump(any(), any(), any(), any(), any());
    CommandFailedException commandFailed = assertThrows(CommandFailedException.class, () -> execute("foo"));
    assertEquals("Unable to dump database: NoSuchFileException: " + archive.getParent(), commandFailed.getMessage());
}

Example 78 with NoSuchFileException

use of java.nio.file.NoSuchFileException in project neo4j by neo4j.

the class LoaderTest method shouldGiveAClearErrorMessageIfTheDestinationsParentDirectoryDoesntExist.

@Test
void shouldGiveAClearErrorMessageIfTheDestinationsParentDirectoryDoesntExist() {
    Path archive = testDirectory.file("the-archive.dump");
    Path destination = Paths.get(testDirectory.absolutePath().toString(), "subdir", "the-destination");
    DatabaseLayout databaseLayout = DatabaseLayout.ofFlat(destination);
    NoSuchFileException noSuchFileException = assertThrows(NoSuchFileException.class, () -> new Loader().load(archive, databaseLayout));
    assertEquals(destination.getParent().toString(), noSuchFileException.getMessage());
}

Example 79 with NoSuchFileException

use of java.nio.file.NoSuchFileException in project neo4j by neo4j.

the class LoaderTest method shouldGiveAClearErrorMessageIfTheArchiveDoesntExist.

@Test
void shouldGiveAClearErrorMessageIfTheArchiveDoesntExist() throws IOException {
    Path archive = testDirectory.file("the-archive.dump");
    deleteLayoutFolders(databaseLayout);
    NoSuchFileException exception = assertThrows(NoSuchFileException.class, () -> new Loader().load(archive, databaseLayout));
    assertEquals(archive.toString(), exception.getMessage());
}

Example 80 with NoSuchFileException

use of java.nio.file.NoSuchFileException in project neo4j by neo4j.

the class DumpCommand method dump.

private void dump(DatabaseLayout databaseLayout, Path archive) {
    Path databasePath = databaseLayout.databaseDirectory();
    try {
        var format = selectCompressionFormat(ctx.err());
        var lockFile = databaseLayout.databaseLockFile().getFileName().toString();
        var quarantineMarkerFile = databaseLayout.quarantineMarkerFile().getFileName().toString();
        dumper.dump(databasePath, databaseLayout.getTransactionLogsDirectory(), archive, format, path -> oneOf(path, lockFile, quarantineMarkerFile));
    } catch (FileAlreadyExistsException e) {
        throw new CommandFailedException("Archive already exists: " + e.getMessage(), e);
    } catch (NoSuchFileException e) {
        if (Paths.get(e.getMessage()).toAbsolutePath().equals(databasePath)) {
            throw new CommandFailedException("Database does not exist: " + databaseLayout.getDatabaseName(), e);
        }
        wrapIOException(e);
    } catch (IOException e) {
        wrapIOException(e);
    }
}