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Message ID: 3043     Entry time: 24 May 2025
Author: Pavel Murat 
Topic: Info 
Subject: ROOT scripting for MIDAS seems to work pretty much out of the box  
Dear All, 

I'm pretty sure many know this already, however I found this feature by a an accident 
and want to share with those who don't know about it yet - seems very useful. 

- it looks that one can use ROOT scripting with rootcling and call from the 
  interactive ROOT prompt any function defined in midas.h and access ODB seemingly 
  WITHOUT DOING anything special 

- more surprisingly, that also works for odbxx, with one minor exception in handling 
  the 64-bit types - the proof is in attachment. The script test_odbxx.C loaded 
  interactively is Stefan's

 https://bitbucket.org/tmidas/midas/src/develop/examples/odbxx/odbxx_test.cxx 

with one minor change - the line 
 
   o[Int64 Key] = -1LL;

is replaced with

   int64_t x = -1LL;
   o["Int64 Key"] = x;

- apparently the interpeter has its limitations. 

My rootlogon.C file doesn't load any libraries, it only defines the appropriate 
include paths. So it seems that everything works pretty much out of the box. 

One issue has surfaced however. All that worked despite my experiment 
had its name="test_025", while the example specifies experiment="test". 
Is it possible that that only first 4 characters are being tested ? 

-- regards, Pasha
Attachment 1: log.txt  39 kB  Uploaded 24 May 2025  | Hide | Hide all 
mu2etrk@mu2edaq22:~/test_stand/daquser_001>root.exe
   ------------------------------------------------------------------
  | Welcome to ROOT 6.32.06                        https://root.cern |
  | (c) 1995-2024, The ROOT Team; conception: R. Brun, F. Rademakers |
  | Built for linuxx8664gcc on May 04 2025, 19:16:31                 |
  | From tags/6-32-06@6-32-06                                        |
  | With g++ (Spack GCC) 13.1.0                                      |
  | Try '.help'/'.?', '.demo', '.license', '.credits', '.quit'/'.q'  |
   ------------------------------------------------------------------

05-24 23:26:22.397661                       MetricManager:31     INFO MetricManager(): MetricManager CONSTRUCTOR
root [0] .L test_odbxx.C 
root [1] main()
Delete key /Test/Settings not found in ODB
Created ODB key "/Test/Settings"
Created ODB key "/Test/Settings/Int32 Key"
Set ODB key "/Test/Settings/Int32 Key" = 42
Created ODB key "/Test/Settings/Bool Key"
Set ODB key "/Test/Settings/Bool Key" = true
Created ODB key "/Test/Settings/Subdir"
Created ODB key "/Test/Settings/Subdir/Int32 key"
Set ODB key "/Test/Settings/Subdir/Int32 key" = 123
Created ODB key "/Test/Settings/Subdir/Double Key"
Set ODB key "/Test/Settings/Subdir/Double Key" = 1.200000
Created ODB key "/Test/Settings/Subdir/Subsub"
Created ODB key "/Test/Settings/Subdir/Subsub/Float key"
Set ODB key "/Test/Settings/Subdir/Subsub/Float key" = 1.200000
Created ODB key "/Test/Settings/Subdir/Subsub/String Key"
Set ODB key "/Test/Settings/Subdir/Subsub/String Key" = "Hello"
Created ODB key "/Test/Settings/Int Array"
Set ODB key "/Test/Settings/Int Array[0...2]" = [1,2,3]
Created ODB key "/Test/Settings/Double Array"
Set ODB key "/Test/Settings/Double Array[0...2]" = [1.200000,2.300000,3.400000]
Created ODB key "/Test/Settings/String Array"
Set ODB key "/Test/Settings/String Array[0...2]" = ["Hello1","Hello2","Hello3"]
Created ODB key "/Test/Settings/Large Array"
Set ODB key "/Test/Settings/Large Array[0...9]" = [0,0,0,0,0,0,0,0,0,0]
Created ODB key "/Test/Settings/Large String"
Set ODB key "/Test/Settings/Large String" = ""
Created ODB key "/Test/Settings/String Array 10"
Set ODB key "/Test/Settings/String Array 10[0...9]" = ["","","","","","","","","",""]
Created ODB key "/Test/Settings/Large String Array 10"
Set ODB key "/Test/Settings/Large String Array 10[0...9]" = ["","","","","","","","","",""]
Get definition for ODB key "/Test/Settings"
Get definition for ODB key "/Test/Settings/Int32 Key"
Get definition for ODB key "/Test/Settings/Int32 Key"
Get ODB key "/Test/Settings/Int32 Key": 42
Get definition for ODB key "/Test/Settings/Bool Key"
Get definition for ODB key "/Test/Settings/Bool Key"
Get ODB key "/Test/Settings/Bool Key": true
Get definition for ODB key "/Test/Settings/Subdir"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get ODB key "/Test/Settings/Subdir/Int32 key": 123
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get ODB key "/Test/Settings/Subdir/Double Key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get ODB key "/Test/Settings/Subdir/Int32 key": 123
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get ODB key "/Test/Settings/Subdir/Double Key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Int Array"
Get definition for ODB key "/Test/Settings/Int Array"
Get ODB key "/Test/Settings/Int Array[0...2]": [1,2,3]
Get definition for ODB key "/Test/Settings/Double Array"
Get definition for ODB key "/Test/Settings/Double Array"
Get ODB key "/Test/Settings/Double Array[0...2]": [1.200000,2.300000,3.400000]
Get definition for ODB key "/Test/Settings/String Array"
Get definition for ODB key "/Test/Settings/String Array"
Get ODB key "/Test/Settings/String Array[0...2]": ["Hello1,Hello2,Hello3"]
Get definition for ODB key "/Test/Settings/Large Array"
Get definition for ODB key "/Test/Settings/Large Array"
Get ODB key "/Test/Settings/Large Array[0...9]": [0,0,0,0,0,0,0,0,0,0]
Get definition for ODB key "/Test/Settings/Large String"
Get definition for ODB key "/Test/Settings/Large String"
Get ODB key "/Test/Settings/Large String": ""
Get definition for ODB key "/Test/Settings/String Array 10"
Get definition for ODB key "/Test/Settings/String Array 10"
Get ODB key "/Test/Settings/String Array 10[0...9]": [",,,,,,,,,"]
Get definition for ODB key "/Test/Settings/Large String Array 10"
Get definition for ODB key "/Test/Settings/Large String Array 10"
Get ODB key "/Test/Settings/Large String Array 10[0...9]": [",,,,,,,,,"]
Get definition for ODB key "/Test/Settings"
Get definition for ODB key "/Test/Settings/Subdir"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get ODB key "/Test/Settings/Subdir/Int32 key": 123
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get ODB key "/Test/Settings/Subdir/Double Key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Int32 Key"
Get definition for ODB key "/Test/Settings/Int32 Key"
Get ODB key "/Test/Settings/Int32 Key": 42
Get definition for ODB key "/Test/Settings/Bool Key"
Get definition for ODB key "/Test/Settings/Bool Key"
Get ODB key "/Test/Settings/Bool Key": true
Get definition for ODB key "/Test/Settings/Subdir"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get ODB key "/Test/Settings/Subdir/Int32 key": 123
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get ODB key "/Test/Settings/Subdir/Double Key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get definition for ODB key "/Test/Settings/Subdir/Int32 key"
Get ODB key "/Test/Settings/Subdir/Int32 key": 123
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get definition for ODB key "/Test/Settings/Subdir/Double Key"
Get ODB key "/Test/Settings/Subdir/Double Key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Subdir/Subsub"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/Float key"
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get definition for ODB key "/Test/Settings/Subdir/Subsub/String Key"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get definition for ODB key "/Test/Settings/Int Array"
Get definition for ODB key "/Test/Settings/Int Array"
Get ODB key "/Test/Settings/Int Array[0...2]": [1,2,3]
Get definition for ODB key "/Test/Settings/Double Array"
Get definition for ODB key "/Test/Settings/Double Array"
Get ODB key "/Test/Settings/Double Array[0...2]": [1.200000,2.300000,3.400000]
Get definition for ODB key "/Test/Settings/String Array"
Get definition for ODB key "/Test/Settings/String Array"
Get ODB key "/Test/Settings/String Array[0...2]": ["Hello1,Hello2,Hello3"]
Get definition for ODB key "/Test/Settings/Large Array"
Get definition for ODB key "/Test/Settings/Large Array"
Get ODB key "/Test/Settings/Large Array[0...9]": [0,0,0,0,0,0,0,0,0,0]
Get definition for ODB key "/Test/Settings/Large String"
Get definition for ODB key "/Test/Settings/Large String"
Get ODB key "/Test/Settings/Large String": ""
Get definition for ODB key "/Test/Settings/String Array 10"
Get definition for ODB key "/Test/Settings/String Array 10"
Get ODB key "/Test/Settings/String Array 10[0...9]": [",,,,,,,,,"]
Get definition for ODB key "/Test/Settings/Large String Array 10"
Get definition for ODB key "/Test/Settings/Large String Array 10"
Get ODB key "/Test/Settings/Large String Array 10[0...9]": [",,,,,,,,,"]
Get ODB key "/Test/Settings/Int32 Key": 42
Get ODB key "/Test/Settings/Bool Key": true
Get ODB key "/Test/Settings/Subdir/Int32 key": 123
Get ODB key "/Test/Settings/Subdir/Double Key": 1.200000
Get ODB key "/Test/Settings/Subdir/Subsub/Float key": 1.200000
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Get ODB key "/Test/Settings/Int Array[0...2]": [1,2,3]
Get ODB key "/Test/Settings/Double Array[0...2]": [1.200000,2.300000,3.400000]
Get ODB key "/Test/Settings/String Array[0...2]": ["Hello1,Hello2,Hello3"]
Get ODB key "/Test/Settings/Large Array[0...9]": [0,0,0,0,0,0,0,0,0,0]
Get ODB key "/Test/Settings/Large String": ""
Get ODB key "/Test/Settings/String Array 10[0...9]": [",,,,,,,,,"]
Get ODB key "/Test/Settings/Large String Array 10[0...9]": [",,,,,,,,,"]
"Settings": {
   "Int32 Key": 42,
   "Bool Key": true,
   "Subdir": {
      "Int32 key": 123,
      "Double Key": 1.200000,
      "Subsub": {
         "Float key": 1.200000,
         "String Key": "Hello"
      }
   },
   "Int Array": [1,2,3],
   "Double Array": [1.200000,2.300000,3.400000],
   "String Array": ["Hello1","Hello2","Hello3"],
   "Large Array": [0,0,0,0,0,0,0,0,0,0],
   "Large String": "",
   "String Array 10": ["","","","","","","","","",""],
   "Large String Array 10": ["","","","","","","","","",""]
}
Set ODB key "/Test/Settings/Int32 Key" = 42
Get ODB key "/Test/Settings/Int32 Key": 42
Set ODB key "/Test/Settings/Int32 Key" = 43
Get ODB key "/Test/Settings/Int32 Key": 43
Set ODB key "/Test/Settings/Int32 Key" = 44
Get ODB key "/Test/Settings/Int32 Key": 44
Set ODB key "/Test/Settings/Int32 Key" = 57
Should be 57: Get ODB key "/Test/Settings/Int32 Key": 57
57
Created ODB key "/Test/Settings/Int64 Key"
Set ODB key "/Test/Settings/Int64 Key" = -1
Get ODB key "/Test/Settings/Int64 Key": -1
AAAA:0xffffffffffffffff
Created ODB key "/Test/Settings/UInt64 Key"
Set ODB key "/Test/Settings/UInt64 Key" = 1311768465173141112
Get ODB key "/Test/Settings/UInt64 Key": 1311768465173141112
0x1234567812345678
Set ODB key "/Test/Settings/Bool Key" = false
Get ODB key "/Test/Settings/Bool Key": false
Set ODB key "/Test/Settings/Bool Key" = true
Set ODB key "/Test/Settings/Subdir/Subsub/String Key" = "Hello"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello"
Set ODB key "/Test/Settings/Subdir/Subsub/String Key" = "Hello world!"
Get ODB key "/Test/Settings/Subdir/Subsub/String Key": "Hello world!"
Set ODB key "/Test/Settings/Int32 Key" = 43
Get ODB key "/Test/Settings/Int Array[0...2]": [1,2,3]
Set ODB key "/Test/Settings/Int Array[0...2]" = [10,10,10]
Get ODB key "/Test/Settings/Int Array[1]": [10]
Set ODB key "/Test/Settings/Int Array[1]" = 2
Get ODB key "/Test/Settings/Int Array[1]": [2]
Get ODB key "/Test/Settings/Int Array[0...4]": [10,2,10,0,0]
Set ODB key "/Test/Settings/Int Array[0...4]" = [11,3,11,1,1]
Arrays size is 5
Set ODB key "/Test/Settings/Int Array[10]" = 0
Get ODB key "/Test/Settings/Int Array[10]": [0]
Set ODB key "/Test/Settings/Int Array[10]" = 10
Get ODB key "/Test/Settings/String Array[0...2]": ["Hello1,Hello2,Hello3"]
Set ODB key "/Test/Settings/String Array[0...2]" = ["Hello1","New String","Hello3"]
Get ODB key "/Test/Settings/String Array[2]": ["Hello3"]
Set ODB key "/Test/Settings/String Array[2]" = "Another String"
Set ODB key "/Test/Settings/String Array[3]" = ""
Get ODB key "/Test/Settings/String Array[3]": [""]
Set ODB key "/Test/Settings/String Array[3]" = "One more"
... 468 more lines ...
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