python.DiskUtils.EOS Class Reference

Inheritance diagram for python.DiskUtils.EOS:

Collaboration diagram for python.DiskUtils.EOS:

Public Member Functions
	__init__ (self, prefix='root://eosatlas.cern.ch/')
	wrap (self, path)
	unwrap (self, path)
	exists (self, path)
	is_file (self, path)
	is_directory (self, path)
	children (self, path)
	glob (self, pattern)

Public Attributes
	prefix = prefix

Protected Member Functions
	_call (self, *args)

Detailed Description

 Accesses EOS using the command line interface.
NB: when EOS is fuse-mounted on /eos this class is not really necessary.

Definition at line 212 of file DiskUtils.py.

Constructor & Destructor Documentation

__init__()

python.DiskUtils.EOS.__init__	(		self,
			prefix = 'root://eosatlas.cern.ch/' )

Definition at line 217 of file DiskUtils.py.

    def __init__(self, prefix='root://eosatlas.cern.ch/'):
        self.prefix = prefix
 

Member Function Documentation

_call()

python.DiskUtils.EOS._call ( self, * args )

protected

Definition at line 245 of file DiskUtils.py.

    def _call(self, *args):
        with open(os.devnull, 'w') as null:
          retcode = subprocess.call(args, stderr=null)
        return retcode
 

children()

python.DiskUtils.EOS.children	(		self,
			path )

Reimplemented from python.DiskUtils.Backend.

Definition at line 239 of file DiskUtils.py.

    def children(self, path):
        with open(os.devnull, 'w') as null:
            output = subprocess.check_output(['eos', '-b', 'find', '-f',
                self.unwrap(path)], stderr=null)
        return [l.strip() for l in output.split('\n')]
 

exists()

python.DiskUtils.EOS.exists	(		self,
			path )

Reimplemented from python.DiskUtils.Backend.

Definition at line 230 of file DiskUtils.py.

    def exists(self, path):
        return self._call('eos', '-b', 'ls', '-s', self.unwrap(path)) == 0
 

glob()

python.DiskUtils.Backend.glob ( self, pattern )

inherited

Reimplemented in python.DiskUtils.Local.

Definition at line 194 of file DiskUtils.py.

    def glob(self, pattern): raise NotImplementedError

is_directory()

python.DiskUtils.EOS.is_directory	(		self,
			path )

Reimplemented from python.DiskUtils.Backend.

Definition at line 236 of file DiskUtils.py.

    def is_directory(self, path):
        return self._call('eos', '-b', 'sat', '-d', self.unwrap(path)) == 0
 

is_file()

python.DiskUtils.EOS.is_file	(		self,
			path )

Reimplemented from python.DiskUtils.Backend.

Definition at line 233 of file DiskUtils.py.

    def is_file(self, path):
        return self._call('eos', '-b', 'sat', '-f', self.unwrap(path)) == 0
 

unwrap()

python.DiskUtils.EOS.unwrap	(		self,
			path )

Definition at line 225 of file DiskUtils.py.

    def unwrap(self, path):
        if path.startswith(self.prefix):
          path = path[len(self.prefix):]
        return path
 

wrap()

python.DiskUtils.EOS.wrap	(		self,
			path )

Reimplemented from python.DiskUtils.Backend.

Definition at line 220 of file DiskUtils.py.

    def wrap(self, path):
        if path.startswith('/'):
            path = self.prefix + path
        return path
 

Member Data Documentation

prefix

python.DiskUtils.EOS.prefix = prefix

Definition at line 218 of file DiskUtils.py.

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The documentation for this class was generated from the following file:

• DiskUtils.py