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