Stumbled across two issues here:
* It's currently not possible to fetch all (*) columns from a DataView
* Backends are not able to tell their names
Worked around the first issue by naming all columns and implemented a
quick & dirty solution for the second one.
This partially reverts fcf7f7d6. The original intention was to have
no library code reading config. Moving code snippets to another lib
doesn't solve this. We need quick & easy access to a monitoring
backend, on CLI, in other modules and so forth. Duplicating so much
code again and again is not an option.
I prefer the former way of doing things unless we find a better
solution.
Library code should not read configuration files. The new createBackend() method
from Monitoring/Controller takes care of reading backend configuration and error
handling. The Backend constructor now requires a resource instance.
Add an ini writer that respects the file structure and the comments that may be
already present in the config file. Move Application/Config.php into
Config/Config.php.
refs #4352
Marius Hein
Alexander Klimov
Thomas Gelf
Eric Lippmann
Thomas Gelf
Jannis Moßhammer
Johannes Meyer
Matthias Jentsch