101 lines
2.4 KiB
Python
101 lines
2.4 KiB
Python
# -*- coding: UTF-8 no BOM -*-
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import os
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import sys
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import h5py
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import numpy as np
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# ---------------------------------------------------------------- #
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# python 3 has no unicode object, this ensures that the code works #
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# on Python 2&3 #
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# ---------------------------------------------------------------- #
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try:
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test=isinstance('test', unicode)
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except(NameError):
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unicode=str
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# ------------------------------------------------------- #
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# Singleton class for converting feature name to H5F path #
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# ------------------------------------------------------- #
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# NOTE:
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# 1. use simple diction to mimic the singleton class in
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# C++/Java
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# 2. data structure
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# {<FEATURE_NAME>: (<TYPE>, <PATH>), ...}
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# <FEATURE_NAME> ==> the name of the feature, e.g. f, ...
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# <TYPE> ==> attribute, dataset
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# <PATH> ==> path_in_HDF5_file, e.g. '/f'
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# 3. for future HDF5 data structure, this can be convert
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# into a function to get more complicated path, this would
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# be a great time to integrate XML parser
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def lables_to_path(label):
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""" read the xml definition file and return the path."""
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path = '/{}'.format(lable)
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return path
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# ----------------------- #
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# H5Table interface class #
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# ----------------------- #
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class H5Table(object):
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"""
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DESCRIPTION
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-----------
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Container class for interfacing with HDF5 file format. This
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is a bare-bone interface class that provide simplified getter
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and setter for retrieving and appending data and attributes.
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PARAMETERS
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----------
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h5f_path
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METHOD
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------
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get_attr()
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add_attr()
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del_attr()
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get_data()
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add_data()
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del_data()
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NOTE
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----
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1. As an interface class, it uses the lazy evaluation design
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that read the data only when its absolutely necessary.
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2.
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"""
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def __init__(self, h5f_path):
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"""
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"""
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self.h5f_path = h5f_path
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def get_attr(self, feature_name=None):
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"""
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"""
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h5f = h5py.File(self.h5f_path, 'r')
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pass
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def add_attr(self, ):
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"""
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"""
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pass
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def del_attr(self, ):
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"""
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"""
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pass
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def get_data(self, ):
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"""
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"""
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pass
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def add_data(self, ):
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"""
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"""
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pass
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def del_data(self, ):
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"""
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"""
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pass |