Exemple #1
0
def parse_uri(uri_as_string):
    """
    Parse the given URI from a string.

    Parameters
    ----------
    uri_as_string: str
        The URI to parse.

    Returns
    -------
    collections.namedtuple
        The parsed URI.

    Notes
    -----
    smart_open/doctools.py magic goes here
    """
    scheme = _sniff_scheme(uri_as_string)
    submodule = transport.get_transport(scheme)
    as_dict = submodule.parse_uri(uri_as_string)

    #
    # The conversion to a namedtuple is just to keep the old tests happy while
    # I'm still refactoring.
    #
    Uri = collections.namedtuple('Uri', sorted(as_dict.keys()))
    return Uri(**as_dict)
Exemple #2
0
def _open_binary_stream(uri, mode, transport_params):
    """Open an arbitrary URI in the specified binary mode.

    Not all modes are supported for all protocols.

    :arg uri: The URI to open.  May be a string, or something else.
    :arg str mode: The mode to open with.  Must be rb, wb or ab.
    :arg transport_params: Keyword argumens for the transport layer.
    :returns: A named file object
    :rtype: file-like object with a .name attribute
    """
    if mode not in ('rb', 'rb+', 'wb', 'wb+', 'ab', 'ab+'):
        #
        # This should really be a ValueError, but for the sake of compatibility
        # with older versions, which raise NotImplementedError, we do the same.
        #
        raise NotImplementedError('unsupported mode: %r' % mode)

    if hasattr(uri, 'read'):
        # simply pass-through if already a file-like
        # we need to return something as the file name, but we don't know what
        # so we probe for uri.name (e.g., this works with open() or tempfile.NamedTemporaryFile)
        # if the value ends with COMPRESSED_EXT, we will note it in compression_wrapper()
        # if there is no such an attribute, we return "unknown" - this
        # effectively disables any compression
        if not hasattr(uri, 'name'):
            uri.name = getattr(uri, 'name', 'unknown')
        return uri

    if not isinstance(uri, str):
        raise TypeError("don't know how to handle uri %r" % uri)

    scheme = _sniff_scheme(uri)
    submodule = transport.get_transport(scheme)
    fobj = submodule.open_uri(uri, mode, transport_params)
    if not hasattr(fobj, 'name'):
        logger.critical('TODO')
        fobj.name = 'unknown'

    return fobj
def _open_binary_stream(uri, mode, transport_params):
    """Open an arbitrary URI in the specified binary mode.

    Not all modes are supported for all protocols.

    :arg uri: The URI to open.  May be a string, or something else.
    :arg str mode: The mode to open with.  Must be rb, wb or ab.
    :arg transport_params: Keyword argumens for the transport layer.
    :returns: A named file object
    :rtype: file-like object with a .name attribute
    """
    if mode not in ('rb', 'rb+', 'wb', 'wb+', 'ab', 'ab+'):
        #
        # This should really be a ValueError, but for the sake of compatibility
        # with older versions, which raise NotImplementedError, we do the same.
        #
        raise NotImplementedError('unsupported mode: %r' % mode)

    if isinstance(uri, int):
        #
        # We're working with a file descriptor.  If we open it, its name is
        # just the integer value, which isn't helpful.  Unfortunately, there's
        # no easy cross-platform way to go from a file descriptor to the filename,
        # so we just give up here.  The user will have to handle their own
        # compression, etc. explicitly.
        #
        fobj = _builtin_open(uri, mode, closefd=False)
        return fobj

    if not isinstance(uri, str):
        raise TypeError("don't know how to handle uri %s" % repr(uri))

    scheme = _sniff_scheme(uri)
    submodule = transport.get_transport(scheme)
    fobj = submodule.open_uri(uri, mode, transport_params)
    if not hasattr(fobj, 'name'):
        fobj.name = uri

    return fobj
def parse_uri(uri_as_string):
    """
    Parse the given URI from a string.

    Parameters
    ----------
    uri_as_string: str
        The URI to parse.

    Returns
    -------
    collections.namedtuple
        The parsed URI.

    Notes
    -----

    Supported URI schemes are:

%(schemes)s
    s3, s3a and s3n are treated the same way.  s3u is s3 but without SSL.

    Valid URI examples::

%(uri_examples)s


    """
    scheme = _sniff_scheme(uri_as_string)
    submodule = transport.get_transport(scheme)
    as_dict = submodule.parse_uri(uri_as_string)

    #
    # The conversion to a namedtuple is just to keep the old tests happy while
    # I'm still refactoring.
    #
    Uri = collections.namedtuple('Uri', sorted(as_dict.keys()))
    return Uri(**as_dict)
Exemple #5
0
 def test_registry_errors_get_transport_for_module_with_missing_deps(self):
     register_transport('smart_open.tests.fixtures.missing_deps_transport')
     with pytest.raises(ImportError):
         get_transport("missing")