EuroPython 2008 (09.07.2008, Vilnius)

1. DataFinder: A Python Application for Scientific Data Management EuroPython 2008 (July 9th 2008, Vilnius) Andreas Schreiber < Andreas.Schreiber@dlr.de> German Aerospace Center (DLR), Cologne http://www.dlr.de/sc

14. DataFinder Client Graphical User Interfaces User Client Administrator Client Implementation in Python with Qt/PyQt

19. Mass Data Storage Data Stores Logical View User Client Storage Locations

21. Python API User Client Extension with GUI import threading from datafinder.application import search_support from datafinder.gui.user import facade def searchAndDisplayResult(): &quot;&quot;&quot;Searches and displays the result in the search result logging window. &quot;&quot;&quot; query = &quot;displayname contains ‘test’ OR displayname == ‘ab’&quot; result = search_support.performSearch(query) resultLogger = facade.getSearchResultLogger() for path in result.keys(): resultLogger.info( &quot;Found item %s.&quot; % path) thread = threading.Thread(target=searchAndDisplayResult) thread.start()

22. Python API Command Line Example (without GUI) # Get API from datafinder.application import ExternalFacade externalFacade = ExternalFacade.getInstance() # Connect to a repository externalFacade.performBasicDatafinderSetup(username, password, startUrl) # Download the whole content rootItem = externalFacade.getRootWebdavServerItem() items = externalFacade.getCollectionContents(rootItem) for item in items: externalFacade.downloadFile(item, baseDirectory)

26. Working with DataFinder…

29. Data Structure Mapping of Organizational Data Structures User Object (collection) Object (file) Relation Attributes (meta data) Project A Project B Project C File 1 File 2 Simulation I Experiment Simulation II Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value Project Mega Code Ultra User Eddie Key Value

33. DataFinder Scripting Downloading File and Starting Application # Download the selected file and try to execute it. from datafinder.application import ExternalFacade from guitools.easygui import * import os from tempfile import * from win32api import ShellExecute # Get instance of ExternalFacade to access DataFinder API facade = ExternalFacade.getInstance() # Get currently selected collection in DataFinder Server-View resource = facade.getSelectedResource() if resource != None: tmpFile = mktemp(ressource.name) facade.downloadFile(resource, tmpFile) if os.path.exists(tmpFile): ShellExecute(0, None, tmpFile, &quot;&quot; , &quot;&quot; , 1) else : msgbox( &quot;No file selected to execute.&quot; )

34. Examples…

35. Example 1: Turbine Simulation

38. Turbine Simulation: Graphical User Interface

41. Example 2: Automobile Supplier

43. Automobile Supplier Data Model

44. Automobile Supplier Configuration of Customers Parameters

47. Example 3: Air Traffic Management

49. Database for Air Traffic Monitoring Data Model and Data Migration

51. Database for Air Traffic Monitoring Search Results

56. Questions?