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#/*##########################################################################
#
# The PyMca X-Ray Fluorescence Toolkit
#
# Copyright (c) 2004-2014 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
#############################################################################*/
__author__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
"""
SPSLayer.py
Data derived class to access spec shared memory
"""
import numpy
################################################################################
#from Data import *
from PyMca5.PyMcaIO import spswrap as sps
################################################################################
SOURCE_TYPE = "SPS"
class SPSLayer(object):
"""
Specializes Data class to access Spec shared memory.
Interface: Data class interface.
"""
def __init__(self,refresh_interval=None,info={}):
"""
See Data.__init__
"""
self.EdfObj=None
info["Class"]="SPSData"
#Data.__init__(self,refresh_interval,info)
self.SourceName= None
self.SourceInfo= None
self.GetData = self.LoadSource
def GetPageInfo(self,index={}):
if 'SourceName' in index:
self.SetSource(index['SourceName'])
if 'Key' in index:
info=self.GetData(index['Key'])
return info[0]
def AppendPage(self,scan_info, scan_data):
return scan_info,scan_data
def SetSource (self,source_name=None):
"""
Sets a new source for data retrieving, an spec version.
If spec exists, self.Source will be this spec name.
Parameters:
source_name: name of spec version
"""
if source_name==self.SourceName: return 1
if (source_name != None) and (source_name in sps.getspeclist()):
self.SourceName=source_name
self.Source=self.SourceName
return 1
else:
self.SourceName=None
self.Source=None
return 0
def GetSourceInfo (self, key=None):
"""
Returns information about the Spec version set by
SetSource, to give application possibility to know about
it before loading.
Returns a dictionary with the keys "Size" (number of possible
keys to this source) and "KeyList" (list of all available keys
in this source). Each element in "KeyList" is an shared memory
array name.
If key is set as an array name, returns information about it.
"""
if self.SourceName is not None:
if key is None: return self.__GetSourceInfo()
elif key in sps.getarraylist(self.SourceName): return self.__GetArrayInfo(key)
return None
def __GetSourceInfo(self):
arraylist= []
for array in sps.getarraylist(self.SourceName):
arrayinfo= sps.getarrayinfo(self.SourceName, array)
arraytype= arrayinfo[2]
arrayflag= arrayinfo[3]
if arrayflag in (sps.IS_ARRAY, sps.IS_MCA, sps.IS_IMAGE) and arraytype!=sps.STRING:
arraylist.append(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.SourceName
info["Key"]=array
info["Source"]=self.Source
arrayinfo=sps.getarrayinfo (self.SourceName,array)
info["rows"]=arrayinfo[0]
info["cols"]=arrayinfo[1]
info["type"]=arrayinfo[2]
info["flag"]=arrayinfo[3]
counter=sps.updatecounter (self.SourceName,array)
info["updatecounter"]=counter
envdict={}
keylist=sps.getkeylist (self.SourceName,array+"_ENV")
for i in keylist:
val=sps.getenv(self.SourceName,array+"_ENV",i)
envdict[i]=val
info["envdict"]=envdict
calibarray= array + "_PARAM"
if calibarray in sps.getarraylist(self.SourceName):
try:
data= sps.getdata(self.SourceName, calibarray)
updc= sps.updatecounter(self.SourceName, calibarray)
info["EnvKey"]= calibarray
info["McaCalib"]= data.tolist()[0]
info["env_updatecounter"]= updc
except:
pass
if array in ["XIA_DATA", "XIA_BASELINE"]:
envarray= "XIA_DET"
if envarray in sps.getarraylist(self.SourceName):
try:
data= sps.getdata(self.SourceName, envarray)
updc= sps.updatecounter(self.SourceName, envarray)
info["EnvKey"]= envarray
info["Detectors"]= data.tolist()[0]
info["env_updatecounter"]= updc
except:
pass
return info
def LoadSource(self,key_list="ALL",append=0,invalidate=1,row="ALL",col="ALL"):
"""
Creates a given number of pages, getting data from the actual
source (set by SetSource)
Parameters:
key_list: list of all keys to be read from source. It is a list of
string, shared memory array names, to be read from the file.
It can be also one single string, if only one array is to be read.
append: If non-zero appends to the end of page list.
Otherwise, initializes the page list
invalidate: if non-zero performas an invalidade call after
loading
row: If set to an integer, loads a single row (0-based indexed)
col: If set to an integer, loads a single column (0-based indexed)
"""
#AS if append==0: Data.Delete(self)
if type(key_list) == type(" "): key_list=(key_list,)
output =[]
if self.SourceName in sps.getspeclist():
if key_list == "ALL":
key_list = sps.getarraylist(self.SourceName)
for array in key_list:
if array in sps.getarraylist(self.SourceName):
info = self.__GetArrayInfo(array)
info["row"] = row
info["col"] = col
if info["row"]!="ALL":
data= sps.getdatarow(self.SourceName, array,info["row"])
if data is not None:
data=numpy.reshape(data,(1, data.shape[0]))
elif info["col"]!="ALL":
data= sps.getdatacol(self.SourceName, array, info["col"])
if data is not None:
data=numpy.reshape(data, (data.shape[0], 1))
else:
data=sps.getdata (self.SourceName, array)
#self.AppendPage(info,data)
output.append([info,data])
if len(output) == 1:
return output[0]
else:
return output
#AS if invalidate: self.Invalidate()
def __RefreshPageOrig (source_obj,self,page):
"""
Virtual method, implements seeking for changes in data.
Returns non-zero if the page was changed.
If not implemented in the derived class, this class doesn't
support dinamic changes monitoring.
As pages can be copied to different Data objects, and can
store the original RefreshPage method for updating, source_obj
refers to the object that was origin of the page data, while
self indicates the object that actually owns the page
with index page.
It was done this way because if it is stored the reference to
the unbound method, python doesn't allow you to call it with
an object of different data type.
Important:
Derived classes shall update the page: self.Pages[page]
but not: source_obj.Pages[page]
"""
if (self.GetItemPageInfo("SourceType",page)==SOURCE_TYPE):
specname=self.GetItemPageInfo("SourceName",page)
arrayname=self.GetItemPageInfo("Key",page)
updatecounter=self.GetItemPageInfo("updatecounter",page)
if (updatecounter!=None) and (arrayname!=None) and (specname!=None):
if specname in sps.getspeclist():
if arrayname in sps.getarraylist(specname):
counter=sps.updatecounter (specname,arrayname)
if (counter != updatecounter):
info=self.GetPageInfo(page)
info.update(self.__GetArrayInfo(arrayname))
if info["row"]!="ALL": data= sps.getdatarow(specname,arrayname,info["row"])
elif info["col"]!="ALL": data= sps.getdatacol(specname,arrayname,info["col"])
else: data=sps.getdata (specname,arrayname)
self.Pages[page].Array=data
return 1
infoname= self.GetItemPageInfo("EnvKey")
infoupdc= self.GetItemPageInfo("env_updatecounter")
if (infoupdc!=None) and (infoname!=None) and (specname!=None):
if infoname in sps.getarraylist(specname):
counter= sps.updatecounter(specname,infoname)
if (counter!=infoupdc):
info= self.GetPageInfo(page)
info.update(self.__GetArrayInfo(arrayname))
return 1
return 0
def RefreshPage(self,sourcename,key):
specname = sourcename
arrayname= key
if not sps.specrunning(specname):
return 0
if sps.isupdated(specname,arrayname):
return 1
else:
return 0
################################################################################
#EXEMPLE CODE:
if __name__ == "__main__":
import sys,time
try:
obj=SPSLayer()
specname=sys.argv[1]
arrayname=sys.argv[2]
obj.SetSource(specname)
obj.LoadSource(arrayname)
while(1):
time.sleep(1)
print(obj.RefreshPage(specname,arrayname))
except:
print("Usage: SPSLayer.py <specversion> <specname>")
sys.exit()
for i in range (obj.GetNumberPages()):
print(obj.GetPageInfo(i))
print(obj.GetPageArray(i))
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