Source code for pymcxray.serialization.SerializationNumpy

#!/usr/bin/env python
""" """

# Script information for the file.
__author__ = "Hendrix Demers (hendrix.demers@mail.mcgill.ca)"
__version__ = ""
__date__ = ""
__copyright__ = "Copyright (c) 2011 Hendrix Demers"
__license__ = ""

# Standard library modules.
import logging
import os.path

# Third party modules.
import numpy as np

# Local modules.

# Project modules
import pymcxray.serialization._Serialization as _Serialization

# Globals and constants variables.

class SerializationNumpy(_Serialization._Serialization):
    def load(self):
        filepath = self.getFilepath()
        if self._verbose:
            logging.debug("Reading serialization file: %s.", filepath)

        serializedData = np.zeros((1), dtype=float)

        if os.path.isfile(filepath):
            serializedData = np.fromfile(filepath)

        return serializedData

    def save(self, serializedData):
        filepath = self.getFilepath()
        if self._verbose:
            logging.debug("Writing serialization file %s.", filepath)

        serializedData.tofile(filepath)

    def _getSerializationExtension(self):
        return "_numpy.dat"

class SerializationNumpyTxt(SerializationNumpy):
    def _getSerializationExtension(self):
        return "_numpy.txt"

    def load(self):
        data = np.zeros((1))

        filepath = self.getFilepath()
        if os.path.isfile(filepath):
            data = np.loadtxt(filepath)

        return data

    def save(self, data):
        filepath = self.getFilepath()
        np.savetxt(filepath, data)

class SerializationNumpyTxtGz(SerializationNumpyTxt):
    def _getSerializationExtension(self):
        return "_numpy.txt.gz"

class SerializationNumpyNPY(SerializationNumpy):
    def _getSerializationExtension(self):
        return "_numpy.npy"

    def load(self):
        data = np.zeros((1))

        filepath = self.getFilepath()
        if os.path.isfile(filepath):
            data = np.load(filepath)

        return data

    def save(self, data):
        filepath = self.getFilepath()
        np.save(filepath, data)

class SerializationNumpyNPZ(SerializationNumpy):
    def _getSerializationExtension(self):
        return "_numpy.npz"

    def load(self):
        data = {}
        filepath = self.getFilepath()
        if os.path.isfile(filepath):
            npzfile  = np.load(filepath)

            for key in npzfile.files:
                data[key] = npzfile[key]

            del npzfile

        return data

    def save(self, data):
        filepath = self.getFilepath()
        np.savez(filepath, **data)