def get_header_data(arg, blockname=None, hdrkeys=None):
"""
checked for new crates
"""
filename = ''
close_dataset = False
if type(arg) == str:
# arg = get_filename_from_dmsyntax(arg, blockname)
arg = get_filename_from_dmsyntax(arg)
tbl = None
try:
tbl = open_crate(arg)
except Exception as e:
raise e
close_dataset = True
filename = tbl.get_filename()
# Make a copy of the data, since we don't know that pycrates will
# do something sensible wrt reference counting
elif isinstance(arg, pycrates.TABLECrate):
tbl = arg
filename = arg.get_filename()
else:
raise IOErr('badfile', arg, 'TABLECrate obj')
# Crates "caches" open files by their filename in memory. If you try
# to open a file multiple times (with DM syntax) it corrupts the Crate
# in memory. This is a work-around to open the CrateDataset without
# DM syntax and iterate through the crates looking for the block
# name that matches.
if blockname is not None:
crate = _get_crate_by_blockname(tbl.get_dataset(), blockname)
tbl = crate or tbl
hdr = {}
if hdrkeys is None:
# hdrkeys = tbl.get_keynames()
hdrkeys = pycrates.get_key_names(tbl)
for key in hdrkeys:
hdr[key] = _require_hdr_key(tbl, key)
if close_dataset:
close_crate_dataset(tbl.get_dataset())
return hdr
def get_header_data(arg, blockname=None, hdrkeys=None):
"""
checked for new crates
"""
filename = ''
close_dataset = False
if type(arg) == str:
# arg = get_filename_from_dmsyntax(arg, blockname)
arg = get_filename_from_dmsyntax(arg)
tbl = None
try:
tbl = open_crate(arg)
except Exception as e:
raise e
close_dataset = True
filename = tbl.get_filename()
# Make a copy of the data, since we don't know that pycrates will
# do something sensible wrt reference counting
elif isinstance(arg, pycrates.TABLECrate):
tbl = arg
filename = arg.get_filename()
else:
raise IOErr('badfile', arg, 'TABLECrate obj')
# Crates "caches" open files by their filename in memory. If you try
# to open a file multiple times (with DM syntax) it corrupts the Crate
# in memory. This is a work-around to open the CrateDataset without
# DM syntax and iterate through the crates looking for the block
# name that matches.
if blockname is not None:
crate = _get_crate_by_blockname(tbl.get_dataset(), blockname)
tbl = crate or tbl
hdr = {}
if hdrkeys is None:
# hdrkeys = tbl.get_keynames()
hdrkeys = pycrates.get_key_names(tbl)
for key in hdrkeys:
hdr[key] = _require_hdr_key(tbl, key)
if close_dataset:
close_crate_dataset(tbl.get_dataset())
return hdr
def _get_meta_data(crate):
"""
checked for new crates
"""
meta = Meta()
names = pycrates.get_key_names(crate)
if names is not None and numpy.iterable(names):
for name in names:
val = pycrates.get_keyval(crate, name)
# empty numpy strings are not recognized by load pickle!
if type(val) is numpy.str_ and val == '':
val = ''
meta[name] = val
return meta
def _get_meta_data(crate):
"""
checked for new crates
"""
meta = Meta()
names = pycrates.get_key_names(crate)
if names is not None and numpy.iterable(names):
for name in names:
val = pycrates.get_keyval(crate, name)
# empty numpy strings are not recognized by load pickle!
if type(val) is numpy.str_ and val == '':
val = ''
meta[name] = val
return meta
else:
raise IOErr('badfile', arg, 'TABLECrate obj')
# Crates "caches" open files by their filename in memory. If you try
# to open a file multiple times (with DM syntax) it corrupts the Crate
# in memory. This is a work-around to open the CrateDataset without
# DM syntax and iterate through the crates looking for the block
# name that matches.
if blockname is not None:
crate = _get_crate_by_blockname(tbl.get_dataset(), blockname)
tbl = crate or tbl
hdr = {}
if hdrkeys is None:
# hdrkeys = tbl.get_keynames()
hdrkeys = pycrates.get_key_names(tbl)
for key in hdrkeys:
hdr[key] = _require_hdr_key(tbl, key)
if close_dataset:
close_crate_dataset(tbl.get_dataset())
return hdr
def get_column_data(*args):
"""
checked for new crates
get_column_data( *NumPy_args )
else:
raise IOErr('badfile', arg, 'TABLECrate obj')
# Crates "caches" open files by their filename in memory. If you try
# to open a file multiple times (with DM syntax) it corrupts the Crate
# in memory. This is a work-around to open the CrateDataset without
# DM syntax and iterate through the crates looking for the block
# name that matches.
if blockname is not None:
crate = _get_crate_by_blockname(tbl.get_dataset(), blockname)
tbl = crate or tbl
hdr = {}
if hdrkeys is None:
#hdrkeys = tbl.get_keynames()
hdrkeys = pycrates.get_key_names(tbl)
for key in hdrkeys:
hdr[key] = _require_hdr_key(tbl, key)
if close_dataset:
close_crate_dataset(tbl.get_dataset())
return hdr
def get_column_data( *args ):
"""
checked for new crates
get_column_data( *NumPy_args )
