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create separate temp directory for each ModelicaSystem session #172

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Merged
arun3688 merged 3 commits into from
Aug 28, 2023
Merged

create separate temp directory for each ModelicaSystem session #172

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21010b8
create separate temp directory for each ModelicaSystem session
arun3688 Aug 28, 2023
c12a42f
use mkdtemp() to support python2
arun3688 Aug 28, 2023
a7f33bd
fix tempdir
arun3688 Aug 28, 2023
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75 changes: 26 additions & 49 deletions OMPython/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -825,6 +825,7 @@ def __init__(self, fileName=None, modelName=None, lmodel=[], useCorba=False, com
self.linearinputs = [] # linearization input list
self.linearoutputs = [] # linearization output list
self.linearstates = [] # linearization states list
self.tempdir = ""

if useCorba:
self.getconn = OMCSession()
Expand Down Expand Up @@ -852,51 +853,18 @@ def __init__(self, fileName=None, modelName=None, lmodel=[], useCorba=False, com
print("File Error:" + os.path.abspath(self.fileName) + " does not exist!!!")
return

(head, tail) = os.path.split(self.fileName) # to store directory/path and file)
self.currDir = os.getcwd()
self.modelDir = head
self.fileName_ = tail

if not self.modelDir:
file_ = os.path.exists(self.fileName_)
if (file_): # execution from path where file is located
self.__loadingModel()
else:
print("Error: File does not exist!!!")

else:
os.chdir(self.modelDir)
file_ = os.path.exists(self.fileName_)
self.model = self.fileName_[:-3]
if (self.fileName_): # execution from different path
os.chdir(self.currDir)
self.__loadingModel()
else:
print("Error: File does not exist!!!")
self.loadingModel()

def __del__(self):
if self.getconn is not None:
self.requestApi('quit')
OMCSessionBase.__del__(self)

# for loading file/package, loading model and building model
def __loadingModel(self):
def loadingModel(self):
# load file
loadfileError = ''
loadfileResult = self.requestApi("loadFile", self.fileName)
loadfileError = self.requestApi("getErrorString")

# print the notification to users
if(loadfileResult==True and loadfileError):
print(loadfileError)

if (loadfileResult==False):
specError = 'Parser error: Unexpected token near: optimization (IDENT)'
if specError in loadfileError:
self.requestApi("setCommandLineOptions", '"+g=Optimica"')
self.requestApi("loadFile", self.fileName)
else:
print('loadFile Error: ' + loadfileError)
return
loadFileExp="".join(["loadFile(","\"",self.fileName,"\"",")"]).replace("\\","/")
loadMsg = self.getconn.sendExpression(loadFileExp)
if not loadMsg:
return print(self.getconn.sendExpression("getErrorString()"))

# load Modelica standard libraries or Modelica files if needed
for element in self.lmodel:
Expand All @@ -920,6 +888,15 @@ def __loadingModel(self):
print("| info | loadLibrary() failed, Unknown type detected: ", element , " is of type ", type(element), ", The following patterns are supported\n1)[\"Modelica\"]\n2)[(\"Modelica\",\"3.2.3\"), \"PowerSystems\"]\n")
if loadmodelError:
print(loadmodelError)

# create a unique temp directory for each session and build the model in that directory
self.tempdir = tempfile.mkdtemp()
if not os.path.exists(self.tempdir):
return print(self.tempdir, " cannot be created")

exp="".join(["cd(","\"",self.tempdir,"\"",")"]).replace("\\","/")
self.getconn.sendExpression(exp)

self.buildModel()

def buildModel(self, variableFilter=None):
Expand Down Expand Up @@ -1229,7 +1206,7 @@ def simulate(self,resultfile=None,simflags=None): # 11
"""
if(resultfile is None):
r=""
self.resultfile = "".join([self.modelName, "_res.mat"])
self.resultfile = os.path.join(self.tempdir, self.modelName + "_res.mat").replace("\\", "/")
else:
r=" -r=" + resultfile
self.resultfile = resultfile
Expand All @@ -1238,7 +1215,7 @@ def simulate(self,resultfile=None,simflags=None): # 11
if(simflags is None):
simflags=""
else:
simflags=" " + simflags;
simflags=" " + simflags

if (self.overridevariables or self.simoptionsoverride):
tmpdict=self.overridevariables.copy()
Expand Down Expand Up @@ -1269,13 +1246,14 @@ def simulate(self,resultfile=None,simflags=None): # 11
csvinput=""

if (platform.system() == "Windows"):
getExeFile = os.path.join(os.getcwd(), '{}.{}'.format(self.modelName, "exe")).replace("\\", "/")
getExeFile = os.path.join(self.tempdir, '{}.{}'.format(self.modelName, "exe")).replace("\\", "/")
else:
getExeFile = os.path.join(os.getcwd(), self.modelName).replace("\\", "/")

getExeFile = os.path.join(self.tempdir, self.modelName).replace("\\", "/")
currentDir = os.getcwd()
if (os.path.exists(getExeFile)):
cmd = getExeFile + override + csvinput + r + simflags
#print(cmd)
os.chdir(self.tempdir)
if (platform.system() == "Windows"):
omhome = os.path.join(os.environ.get("OPENMODELICAHOME"))
dllPath = os.path.join(omhome, "bin").replace("\\", "/") + os.pathsep + os.path.join(omhome, "lib/omc").replace("\\", "/") + os.pathsep + os.path.join(omhome, "lib/omc/cpp").replace("\\", "/") + os.pathsep + os.path.join(omhome, "lib/omc/omsicpp").replace("\\", "/")
Expand All @@ -1286,11 +1264,10 @@ def simulate(self,resultfile=None,simflags=None): # 11
p.terminate()
else:
os.system(cmd)
os.chdir(currentDir)
self.simulationFlag = True

else:
raise Exception("Error: application file not generated yet")

raise Exception("Error: Application file path not found: " + getExeFile)

# to extract simulation results
def getSolutions(self, varList=None, resultfile=None): # 12
Expand All @@ -1312,7 +1289,7 @@ def getSolutions(self, varList=None, resultfile=None): # 12

# check for result file exits
if (not os.path.exists(resFile)):
print("Error: Result file does not exist")
print("Error: Result file does not exist " + resFile)
return
#exit()
else:
Expand Down