Information Technology Reference
In-Depth Information
Fig. 5.2 Data Avenue graphical user interface
( Copy ) or moved ( Move ) to the target storage. Such transfers are performed
simultaneously, and progress statuses are displayed below the panels (these tasks
will keep running, even if the user leaves the web page). Active transfers can be
aborted ( Cancel ), and status details of previous transfers can be queried ( Details )
back for a specific period of time ( History ). History entries not yet of interest can be
removed ( Delete ).
It is also possible to save preferred storage locations as
. Favorites
store additional, not security-sensitive data (such as username, VO name, etc.),
which help in accessing frequently visited storages more rapidly. Favorite details
can also be modi
Favorites
ed later ( Edit favorites ).
As can be seen from the foregoing, the Data Avenue UI provides an intuitive
interface for users to easily manage, organize, upload, or download data from
remote storage resources. Use of the web-based graphical user interface requires no
software installation or IT expertise.
5.2.2 Data Avenue Web Services (Blacktop)
The core functionality of Data Avenue services is realized by the Blacktop com-
ponent. Blacktop services are publicly available through a standard web service
interface over HTTP (via SOAP messages or REST), hosted at MTA SZTAKI.
Web service operations
whose functionalities are reflected in the user interface
presented in the previous section
include directory contents listing ( list ), directory
creation ( mkdir ), directory deletion ( rmdir ),
file or
directory renaming ( rename ). In addition, meta-information retrieval operations are
file deletion ( delete ), and
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