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#/*##########################################################################
# Copyright (C) 2004-2012 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# This toolkit is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# PyMca is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# PyMca; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# PyMca follows the dual licensing model of Riverbank's PyQt and cannot be
# used as a free plugin for a non-free program.
#
# Please contact the ESRF industrial unit (industry@esrf.fr) if this license
# is a problem for you.
#############################################################################*/
import types
from PyMca import DataObject
from PyMca.PyMcaIO import spswrap as sps
DEBUG = 0
SOURCE_TYPE = 'SPS'
class SpsDataSource(object):
def __init__(self, name):
if type(name) not in types.StringTypes:
raise TypeError("Constructor needs string as first argument")
self.name = name
self.sourceName = name
self.sourceType = SOURCE_TYPE
def refresh(self):
pass
def getSourceInfo(self):
"""
Returns information about the Spec version in self.name
to give application possibility to know about it before loading.
Returns a dictionary with the key "KeyList" (list of all available keys
in this source). Each element in "KeyList" is an shared memory
array name.
"""
return self.__getSourceInfo()
def getKeyInfo(self, key):
if key in self.getSourceInfo()['KeyList']:
return self.__getArrayInfo(key)
else:
return {}
def getDataObject(self, key_list, selection=None):
if type(key_list) != types.ListType:
nolist = True
key_list = [key_list]
else:
output = []
nolist = False
if self.name in sps.getspeclist():
sourcekeys = self.getSourceInfo()['KeyList']
for key in key_list:
#a key corresponds to an array name
if key not in sourcekeys:
raise KeyError("Key %s not in source keys" % key)
#array = key
#create data object
data = DataObject.DataObject()
data.info = self.__getArrayInfo(key)
data.info['selection'] = selection
data.data = sps.getdata(self.name, key)
if nolist:
if selection is not None:
scantest = (data.info['flag'] &
sps.TAG_SCAN) == sps.TAG_SCAN
if ((key in ["SCAN_D"]) or scantest) \
and 'cntlist' in selection:
data.x = None
data.y = None
data.m = None
if 'nopts' in data.info['envdict']:
nopts = int(data.info['envdict']['nopts']) + 1
else:
nopts = data.info['rows']
if not 'LabelNames' in data.info:
data.info['LabelNames'] =\
selection['cntlist'] * 1
if 'x' in selection:
for labelindex in selection['x']:
label = data.info['LabelNames'][labelindex]
if label not in data.info['LabelNames']:
raise ValueError("Label %s not in scan labels" % label)
index = data.info['LabelNames'].index(label)
if data.x is None: data.x = []
data.x.append(data.data[:nopts, index])
if 'y' in selection:
for labelindex in selection['y']:
label = data.info['LabelNames'][labelindex]
if label not in data.info['LabelNames']:
raise ValueError("Label %s not in scan labels" % label)
index = data.info['LabelNames'].index(label)
if data.y is None: data.y = []
data.y.append(data.data[:nopts, index])
if 'm' in selection:
for labelindex in selection['m']:
label = data.info['LabelNames'][labelindex]
if label not in data.info['LabelNames']:
raise ValueError("Label %s not in scan labels" % label)
index = data.info['LabelNames'].index(label)
if data.m is None: data.m = []
data.m.append(data.data[:nopts, index])
data.info['selectiontype'] = "1D"
data.info['scanselection'] = True
data.data = None
return data
if (key in ["XIA_DATA"]) and 'XIA' in selection:
if selection["XIA"]:
if 'Detectors' in data.info:
for i in range(len(selection['rows']['y'])):
selection['rows']['y'][i] = \
data.info['Detectors'].index(selection['rows']['y'][i]) + 1
del selection['XIA']
return data.select(selection)
else:
if data.data is not None:
data.info['selectiontype'] = "%dD" % len(data.data.shape)
if data.info['selectiontype'] == "2D":
data.info["imageselection"] = True
return data
else:
output.append(data.select(selection))
return output
else:
return None
def __getSourceInfo(self):
arraylist = []
sourcename = self.name
for array in sps.getarraylist(sourcename):
arrayinfo = sps.getarrayinfo(sourcename, array)
arraytype = arrayinfo[2]
arrayflag = arrayinfo[3]
if arraytype != sps.STRING:
if (arrayflag & sps.TAG_ARRAY) == sps.TAG_ARRAY:
arraylist.append(array)
continue
if DEBUG:
print("array not added %s" % array)
source_info = {}
source_info["Size"] = len(arraylist)
source_info["KeyList"] = arraylist
return source_info
def __getArrayInfo(self, array):
info = {}
info["SourceType"] = SOURCE_TYPE
info["SourceName"] = self.name
info["Key"] = array
arrayinfo = sps.getarrayinfo(self.name, array)
info["rows"] = arrayinfo[0]
info["cols"] = arrayinfo[1]
info["type"] = arrayinfo[2]
info["flag"] = arrayinfo[3]
counter = sps.updatecounter(self.name, array)
info["updatecounter"] = counter
envdict = {}
keylist = sps.getkeylist(self.name, array + "_ENV")
for i in keylist:
val = sps.getenv(self.name, array + "_ENV", i)
envdict[i] = val
info["envdict"] = envdict
scantest = (info['flag'] & sps.TAG_SCAN) == sps.TAG_SCAN
if (array in ["SCAN_D"]) or scantest:
if 'axistitles' in info["envdict"]:
info["LabelNames"] = self._buildLabelsList(info['envdict']['axistitles'])
if 'H' in info["envdict"]:
if 'K' in info["envdict"]:
if 'L' in info["envdict"]:
info['hkl'] = [envdict['H'],
envdict['K'],
envdict['L']]
calibarray = array + "_PARAM"
if calibarray in sps.getarraylist(self.name):
try:
data = sps.getdata(self.name, calibarray)
updc = sps.updatecounter(self.name, calibarray)
info["EnvKey"] = calibarray
# data is an array
info["McaCalib"] = data.tolist()[0]
info["env_updatecounter"] = updc
except:
# Some of our C modules return NULL without setting
# an exception ...
pass
if array in ["XIA_DATA", "XIA_BASELINE"]:
envarray = "XIA_DET"
if envarray in sps.getarraylist(self.name):
try:
data = sps.getdata(self.name, envarray)
updc = sps.updatecounter(self.name, envarray)
info["EnvKey"] = envarray
info["Detectors"] = data.tolist()[0]
info["env_updatecounter"] = updc
except:
pass
return info
def _buildLabelsList(self, instr):
if DEBUG:
print('SpsDataSource : building counter list')
state = 0
llist = ['']
for letter in instr:
if state == 0:
if letter == ' ':
state = 1
elif letter == '{':
state = 2
else:
llist[-1] = llist[-1] + letter
elif state == 1:
if letter == ' ':
pass
elif letter == '{':
state = 2
llist.append('')
else:
llist.append(letter)
state = 0
elif state == 2:
if letter == '}':
state = 0
else:
llist[-1] = llist[-1] + letter
try:
llist.remove('')
except ValueError:
pass
return llist
def isUpdated(self, sourceName, key):
if sps.specrunning(sourceName):
if sps.isupdated(sourceName, key):
return True
#return True if its environment is updated
envkey = key + "_ENV"
if envkey in sps.getarraylist(sourceName):
if sps.isupdated(sourceName, envkey):
return True
return False
source_types = {SOURCE_TYPE: SpsDataSource}
# TODO object is a builtins
def DataSource(name="", object=None, copy=True, source_type=SOURCE_TYPE):
try:
sourceClass = source_types[source_type]
except KeyError:
# ERROR invalid source type
raise TypeError("Invalid Source Type, source type should be one of %s" % source_types.keys())
return sourceClass(name, object, copy)
def main():
import sys
try:
specname = sys.argv[1]
arrayname = sys.argv[2]
obj = DataSource(specname)
data = obj.getData(arrayname)
print("info = ", data.info)
except:
# give usage instructions
print("Usage: SpsDataSource <specversion> <arrayname>")
sys.exit()
if __name__ == "__main__":
main()
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