Source code for pyspark.files

#
# 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.
#

import os


__all__ = ['SparkFiles']


[docs]class SparkFiles(object): """ Resolves paths to files added through L{SparkContext.addFile()<pyspark.context.SparkContext.addFile>}. SparkFiles contains only classmethods; users should not create SparkFiles instances. """ _root_directory = None _is_running_on_worker = False _sc = None def __init__(self): raise NotImplementedError("Do not construct SparkFiles objects")
[docs] @classmethod def get(cls, filename): """ Get the absolute path of a file added through C{SparkContext.addFile()}. """ path = os.path.join(SparkFiles.getRootDirectory(), filename) return os.path.abspath(path)
[docs] @classmethod def getRootDirectory(cls): """ Get the root directory that contains files added through C{SparkContext.addFile()}. """ if cls._is_running_on_worker: return cls._root_directory else: # This will have to change if we support multiple SparkContexts: return cls._sc._jvm.org.apache.spark.SparkFiles.getRootDirectory()