<commit_before># Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# ----------------------------------------------------------------------
# HDFS IO implementation

_HDFS_PATH_RE = re.compile(r'hdfs://(.*):(\d+)(.*)')

try:
    # Python 3
    from queue import Queue, Empty as QueueEmpty, Full as QueueFull
except ImportError:
    from Queue import Queue, Empty as QueueEmpty, Full as QueueFull


def have_libhdfs():
    try:
        with nogil:
            check_status(HaveLibHdfs())
        return True
    except Exception:
        return False


def have_libhdfs3():
    try:
        with nogil:
            check_status(HaveLibHdfs3())
        return True
    except Exception:
        return False


def strip_hdfs_abspath(path):
    m = _HDFS_PATH_RE.match(path)
    if m:
        return m.group(3)
    else:
        return path


cdef class HadoopFileSystem:
    cdef:
        shared_ptr[CHadoopFileSystem] client

    cdef readonly:
        bint is_open
        str host
        str user
        str kerb_ticket
        str driver
        int port
        dict extra_conf

    def _connect(self, host, port, user, kerb_ticket, driver, extra_conf):
        cdef HdfsConnectionConfig conf

        if host is not None:
            conf.host = tobytes(host)
        self.host = host

        conf.port = port
        self.port = port

        if user is not None:
            conf.user = tobytes(user)
        self.user = user

        if kerb_ticket is not None:
            conf.kerb_ticket = tobytes(kerb_ticket)
        self.kerb_ticket = kerb_ticket

        if driver == 'libhdfs':
            with nogil:
                check_status(HaveLibHdfs())
            conf.driver = HdfsDriver_LIBHDFS
        elif driver == 'libhdfs3':
            with nogil:
                check_status(HaveLibHdfs3())
            conf.driver = HdfsDriver_LIBHDFS3
        else:<commit_msg>ARROW-4413: [Python] Fix pa.hdfs.connect() on Python 2<commit_after># Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# ----------------------------------------------------------------------
# HDFS IO implementation

_HDFS_PATH_RE = re.compile(r'hdfs://(.*):(\d+)(.*)')

try:
    # Python 3
    from queue import Queue, Empty as QueueEmpty, Full as QueueFull
except ImportError:
    from Queue import Queue, Empty as QueueEmpty, Full as QueueFull


def have_libhdfs():
    try:
        with nogil:
            check_status(HaveLibHdfs())
        return True
    except Exception:
        return False


def have_libhdfs3():
    try:
        with nogil:
            check_status(HaveLibHdfs3())
        return True
    except Exception:
        return False


def strip_hdfs_abspath(path):
    m = _HDFS_PATH_RE.match(path)
    if m:
        return m.group(3)
    else:
        return path


cdef class HadoopFileSystem:
    cdef:
        shared_ptr[CHadoopFileSystem] client

    cdef readonly:
        bint is_open
        object host
        object user
        object kerb_ticket
        object driver
        int port
        dict extra_conf

    def _connect(self, host, port, user, kerb_ticket, driver, extra_conf):
        cdef HdfsConnectionConfig conf

        if host is not None:
            conf.host = tobytes(host)
        self.host = host

        conf.port = port
        self.port = port

        if user is not None:
            conf.user = tobytes(user)
        self.user = user

        if kerb_ticket is not None:
            conf.kerb_ticket = tobytes(kerb_ticket)
        self.kerb_ticket = kerb_ticket

        if driver == 'libhdfs':
            with nogil:
                check_status(HaveLibHdfs())
            conf.driver = HdfsDriver_LIBHDFS
        elif driver == 'libhdfs3':
            with nogil:
                check_status(HaveLibHdfs3())
            conf.driver = HdfsDriver_LIBHDFS3
        else:
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