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Venue Data Storage

Venue Data Storage. Susanne Lefvert lefvert@mcs.anl.gov University of Chicago. Venue Data Storage. Single level list No duplications allowed Double-click to open Right-click for options Venue data versus Personal data . Venue Data Storage.

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Venue Data Storage

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  1. Venue Data Storage Susanne Lefvert lefvert@mcs.anl.gov University of Chicago

  2. Venue Data Storage • Single level list • No duplications allowed • Double-click to open • Right-click for options • Venue data versus Personal data

  3. Venue Data Storage • The data storage resides on the file system of the server. Each venue has a directory with files in the Data folder. • Venue has a set of data descriptions • Meta information about each data object • Transfer details • Each data upload is actually two file transfers • Meta data • Actual files using GSI HTTP

  4. DataStoreClient • Tool for developers • Hides details about • SOAP communication • Data cache • Upload/Download • File listing • API • AccessGrid.DatastoreClient • AccessGrid.Descriptions.DataDescription http://www.mcs.anl.gov/fl/research/accessgrid/documentation/developer/api/

  5. Example: Script from AccessGrid.DataStoreClient import GetVenueDataStore from AccessGrid.Toolkit import CmdlineApplication # Initialize AG application app = CmdlineApplication() args = app.Initialize() # Create data store interface venueUrl = "https://localhost:8000/Venues/default" dataStoreClient = GetVenueDataStore(venueUrl) # Upload a file to venue dataStoreClient.Upload("test.doc") dataStoreClient.Upload("test.ppt")

  6. Example: Script # Get data from venue dataStoreClient.LoadData() # Get file names that matches a specific pattern files = dataStoreClient.QueryMatchingFiles("*.doc") # Get data description for a file name data = dataStoreClient.GetFileData(files[0]) # Download a file from venue dataStoreClient.Download("test.doc", "localFile.doc") # Remove file from venue dataStoreClient.RemoveFile("test.doc") dataStoreClient.RemoveFile("test.ppt")

  7. Exercises http://www.mcs.anl.gov/fl/research/accessgrid/documentation/tutorial/AGTk_2.4 Exercise 8 – Data Storage • Trying the DataStoreClient test script. • Creating a venue file browser

  8. Exercise 2: Venue File Browser

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