Sandeep,
You did not provide me with a complete STAX job as I had requested. You
again only provided snippets of your STAX job. I put together the
following STAX job with the snippets that you provided and using your
AD.csv file and it ran fine. However, it appears you have some errors in
your logic (especially in how you are using a <loop> to iterate thru d and
are not using the "var=i" attribute for the loop element).
So, my guess is still that in your real STAX job you are defining the List
variable in a scope that is not assessable from your DCP_Auto function (as
I talked about in my previous note). Until you provide a complete STAX
job that I can run to recreate the problem you're seeing, that's my best
guess. Also, please provide the complete error message that STAX is
logging.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE stax SYSTEM "stax.dtd">
<stax>
<defaultcall function="DCP_Auto"/>
<script>
import csv
class RecordDetails:
Token = ""
Records = []
csv_file = 'C:\\stax\\AD.csv'
testList = list(csv.reader(open(csv_file, 'r')))
curToken = "null"
recordDetails = RecordDetails()
recordDetails = None
records = [RecordDetails]
for index, line in enumerate(testList):
token = "null"
token = testList[index][4]
if token == "null":
continue
if curToken != token:
curToken = token
recordDetails = RecordDetails()
recordDetails.Token = curToken
recordDetails.Records = []
records.append(recordDetails)
if recordDetails != None:
recordDetails.Records.append(line)
d = {}
CountSequence = 1
for i, obj in enumerate(records):
if records[i].Token == "Sequence":
d[CountSequence] = records[i].Records
CountSequence += 1
if records[i].Token == "Parallel":
d[CountSequence] = records[i].Records
CountSequence += 1
machineList = [ '10.211.105.108', '10,211.105.109', '10.211.105.110' ]
Lists = len(records)
</script>
<function name="DCP_Auto">
<sequence>
<log message="1">'type(Lists)=%s type(records)=%s' % (type(Lists),
type(records))</log>
<log message="1">'Lists=%s' % (Lists)</log>
<script>i = 1</script>
<loop from="i" to="Lists">
<log message="1">'i=%s d[%s][0][4]=%s' % (i, i, d[i][0][4])</log>
</loop>
</sequence>
</function>
</stax>
Here's are the messages logged when running this STAX job
C:\>STAF local LOG QUERY MACHINE {STAF/Config/MachineNickname} LOGNAME
STAX_Job_19_User
Response
--------
Date-Time Level Message
----------------- -----
-----------------------------------------------------
20130820-14:47:52 Info type(Lists)=<type 'int'> type(records)=<type
'list'>
20130820-14:47:52 Info Lists=4
20130820-14:47:52 Info i=1 d[1][0][4]=Sequence
20130820-14:47:52 Info i=1 d[1][0][4]=Sequence
20130820-14:47:52 Info i=1 d[1][0][4]=Sequence
20130820-14:47:52 Info i=1 d[1][0][4]=Sequence
--------------------------------------------------------------
Sharon Lucas
IBM Austin, luc...@us.ibm.com
(512) 286-7313 or Tieline 363-7313
From: sandeep bhosale <sandeep.bhos...@gmail.com>
To: Sharon Lucas/Austin/IBM@IBMUS,
Cc: staf-users@lists.sourceforge.net
Date: 08/19/2013 10:54 PM
Subject: Re: [staf-users] Gettitng error in loop
Yes Sharon, This was a typo. Below is my script function. I am attaching
the CSV file used in the script with this email. Below function gives me
three lists. Which is working fine when i am running this script using
python. I am also able to get the value of Lists variable when I run this
script using python. But when I am using it in stax I am getting the
error. Please refer below script tag and the calling function.
<script>
import csv
class RecordDetails:
Token = ""
Records = []
csv_file = 'E:\\Automation_STAF\\AD.csv'
testList = list(csv.reader(open(csv_file, 'r')))
curToken = "null"
recordDetails = RecordDetails()
recordDetails=None
records = [RecordDetails]
for index, line in enumerate(testList):
token="null"
token = testList[index][4]
if token=="null":
continue
if curToken !=token:
curToken =token
recordDetails = RecordDetails()
recordDetails.Token = curToken
recordDetails.Records=[]
records.append(recordDetails)
if recordDetails!=None:
recordDetails.Records.append(line)
d={}
CountSequence=1
for i, obj in enumerate(records):
if records[i].Token=="Sequence":
d[CountSequence] =records[i].Records
CountSequence +=1
if records[i].Token=="Parallel":
d[CountSequence] =records[i].Records
CountSequence +=1
machineList = ['10.211.105.108','10.211.105.109' , '10.211.105.110' ]
Lists = len(records)
</script>
---------------------------------------
And below is my main function from where I am accessing the Lists
variable.
<function name="DCP_Auto">
<sequence>
<script>print "Getting the Job ID"</script>
<call function="'WriteMachineName'"/>
<script>i=1</script>
<log message="1">'Lists'</log>
<loop from ="i" to = "Lists" >
<if expr ="d[i][0][4]='Sequence'">
<call function="'SequentialDriverFunction'"/>
<elseif expr ="d[i][0][4]='Parallel'">
<call function="'ParallelDriverFunction'"/>
</elseif>
</if>
</loop>
</sequence>
</function>
Please help me identifying the issue.
Thanks,
Sandeep
On Mon, Aug 19, 2013 at 9:06 PM, Sharon Lucas <luc...@us.ibm.com> wrote:
In your example, you showed that you assigned a variable named "List" the
length of a list. However, then you tried to use a variable named "Lists"
instead of "List". Since no variable exists called "Lists", you would get
an error that this variable is not defined. So, is this the cause of the
problem, or did you have a typo in your note and did you really attempt to
use a variable called "List" instead of "Lists"?
If this was a typo and you really tried to access the variable using the
same name you had assigned, then another possibility is that you assigned
the "Lists" variable in a scope that is not accessible via the function
from which you are trying to use the "Lists" variable. Since you did not
provide a complete STAX job that demonstrates the problem, I can only
guess that this is what is happening. Please provide a complete STAX job
that demonstrates the problem. Here's more information about scope:
As talked about in section "function: Define a Named Task" in the STAX
User's Guide at
http://staf.sourceforge.net/current/STAX/staxug.html#Header_Function";
- Scope determines how variables are to be assigned
By default, all variables assigned in a function are global to the job's
current STAX-Thread. However, you can assign a local scope to a function
such that all names assigned in a function are local to that function and
exist only while the function runs. Functions defined with a local scope
provide a nested namespace, which contains a copy of variables in the
caller's scope and which localizes any new variables created or changes to
existing variables.
- STAXGlobal class provides the ability to create truly global variables
An exception to the above scoping rules are variables that are instances
of the STAXGlobal class. A STAXGlobal class is a Python class which STAX
provides as a wrapper to provide for the creation of truly global
variables, even across STAX-Threads and when used in functions declared
with a local scope. See the STAXGlobal Class section for more information
on how to create and use STAXGlobal variables.
So, depending on where your variable containing a list's length was
assigned, it may not be accessible from the function where you are trying
to access it. This can occur if the variable was created in a different
STAX-Thread, or in a function whose scope is defined as "local", etc.
Here's a STAX job that assigns a variable called myListLength in the same
function from which it is being accessed by a <loop> element and it works
fine.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE stax SYSTEM "stax.dtd">
<stax>
<defaultcall function="Main"/>
<function name="Main">
<sequence>
<script>
myList = ['first', 'second', 'third']
myListLength = len(myList)
</script>
<log message="1">'List length: %s records=%s' % (myListLength,
myList)</log>
<loop var="i" from="1" to="myListLength">
<sequence>
<log message="1">'i=%s' % (i)</log>
</sequence>
</loop>
</sequence>
</function>
</stax>
So, if instead your STAX job did something like the following where the
myListLength variable was assigned in a function with a local scope, it
would then not be accessible via function RunLoop:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE stax SYSTEM "stax.dtd">
<stax>
<defaultcall function="Main"/>
<function name="Main">
<sequence>
<call function="'AssignVariable'"/>
<call function="'RunLoop'"/>
</sequence>
</function>
<function name="AssignVariable" scope="local">
<sequence>
<script>
myList = ['first', 'second', 'third']
myListLength = len(myList)
</script>
</sequence>
</function>
<function name="RunLoop">
<sequence>
<log message="1">'List length: %s records=%s' % (myListLength,
myList)</log>
<loop var="i" from="1" to="myListLength">
<sequence>
<log message="1">'i=%s' % (i)</log>
</sequence>
</loop>
</sequence>
</function>
</stax>
If you ran this STAX job, you would get Python error "NameError: name
'myListLength' is not defined" as follows:
C:\>STAF local STAX EXECUTE FILE "C:/stax/sandeep.xml" RETURNRESULT WAIT
Response
--------
{
Job ID : 30
Start Date-Time: 20130819-10:30:56
End Date-Time : 20130819-10:30:56
Status : Terminated
Result : None
Job Log Errors : [
{
Date-Time: 20130819-10:30:56
Level : Error
Message : STAXPythonEvaluationError signal raised. Terminating job.
===== XML Information =====
File: c:\stax\sandeep.xml, Machine: local://local
Line 27: Error in element type "log".
===== Python Error Information =====
com.ibm.staf.service.stax.STAXPythonEvaluationException:
Python string evaluation failed for:
'List length: %s records=%s' % (myListLength, myList)
Traceback (most recent call last):
File "<pyEval string>", line 1, in <module>
NameError: name 'myListLength' is not defined
===== Call Stack for STAX Thread 1 =====
[
function: Main (Line: 8, File: c:\stax\sandeep.xml, Machine:
local://local)
sequence: 2/2 (Line: 9, File: c:\stax\sandeep.xml, Machine:
local://local)
function: RunLoop (Line: 24, File: c:\stax\sandeep.xml, Machine:
local://local
)
sequence: 1/2 (Line: 25, File: c:\stax\sandeep.xml, Machine:
local://local)
]
}
]
Testcase Totals: {
Tests : 0
Passes: 0
Fails : 0
}
}
C:\>
--------------------------------------------------------------
Sharon Lucas
IBM Austin, luc...@us.ibm.com
(512) 286-7313 or Tieline 363-7313
From: Sandeep <sandeep.bhos...@gmail.com>
To: staf-users@lists.sourceforge.net,
Date: 08/19/2013 06:20 AM
Subject: [staf-users] Gettitng error in loop
Hi
I am using the STAX XML for my project. I am using script tag to run my
python script. In the script itselef I have declared some variable which I
am using in the loop. But I am getting error in the loop. I am not able to
access the script variable. Below refer below for the problem statement
Below code is in my STAX xml.
<script>
Python code here. I have a variable declared as List.
List = len(records)
I have verified the List variable by running the python script and I am
getting its value.
</script>
Now when I use this variable in the loop below i am not getting the value
to
my variable of the script tag.
Below is my loop
<script>i=1</script>
<log message="1">"Lists"</log>
<loop from ="i" to = "Lists" >
<if expr ="d[i][0][4]='Sequence'">
<call function="'SequentialDriverFunction'"/>
<elseif expr ="d[i][0][4]='Parallel'">
<call function="'ParallelDriverFunction'"/>
</elseif>
</if>
</loop>
Here I am getting error as "Error in attribute "to" associated with
element
type "loop"."
For this I have checked the List variable from the log message and I found
that I am not getting the value of variable(which is defined in the above
script tag)
Can you please tell me how can I access the value of the variable from the
script tag?
Thank you
Regards,
Sandeep
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[attachment "AD.csv" deleted by Sharon Lucas/Austin/IBM]
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