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- First step for integration of the analytics framework in the collectagent
- QueryEngine and REST API integration still missing
- Proper testing still to be done
- Added a probe function: the global config file is scanned before
initialization, and if no data analytics plugins are requested, no
sensor navigator is built

- A nicer and refactored version of the "average" plugin
- Allows to perform arbitrary aggregation operations over sensors, like
sum, average, or maximum

- Auto-publish is now case insensitive with respect to the <sensor> and
<group> patterns
- If an invalid pattern was specified (missing <sensor> clause) the
configuration is aborted
- Checks for the uniqueness of sensor and group names have been
temporarily dropped as they interfere with templates and entities
(until we find a good solution for MQTT topics)

- Added some more indentation to make the configurations more readable
- Fixed one more warning in dcdbquery

- Boolean configuration options now all accept "true" and "on" keywords
- Cache interval and thread count parameters removed from the command-line
interface for consistency; these can still be set in the config files
like all other parameters
- global.conf file renamed to dcdbpusher.conf for consistency

- Fixing a few warnings here and there in the tools subdirectory

- Name uniqueness checks have been extended to sensor names and sensor
groups (managed by two separate sets)

- Sensor caches across DCDB are now managed by the CacheEntry
implementation under "common"
- Provides utility methods to perform averages, checks, get views etc.
- SensorCache class in collectagent kept due to its libdcdb dependencies

- We enforce that instantiated analyzers have unique names
- The checks are carried out by the MQTTChecker class, which maintains
group/analyzer names in a separate sets with respect to MQTT topics

- Checks on MQTT topics have been made generic in the MQTTChecker singleton
class under "common"
- MQTT topic checks are now performed also when plugins are reloaded; if
the checks fail, the plugin is cleared and left uninitialized
- All sensors in a plugin not satisfying the checks are logged now, not
only the first one
- Fixed a minor bug that resulted in msgrates of 0 under certain
compilers, due to type promotion in C++

- Removed dependencies from data analytics framework to dcdbpusher
- Checks for correctness of MQTT topics moved to the mqttChecker shared class

- Fixed some linking issues with the SensorNavigator
- dcdbpusher now uses the common logging interface to setup file and
command-line sinks

- Added a 'common' directory where all shared code has been placed
- Analytics package has been moved out of dcdbpusher, now has its own makefile
- Some renaming here and there for uniformity

Msr

See merge request dcdb/dcdbpusher!2

- Fixed a minor issue that caused text corruption when using the -h
option on certain shells
- Collectagent now exits gracefully also when receiving a SIGTERM signal

- Using the "delay" parameter, analyzers can be started in a delayed way
- Useful to let sensor caches fill and prevent errors being thrown

- Setting a maxMsgNum of -1 will result in the minimum possible value
(slightly above the predicted message rate) being picked as a cap
- Added some logging to make the feature more verbose

- Added configuration options to tune the Cassandra driver for
optimal performance
- Added a "debugLog" configuration switch that enables logging of
errors in asynchronous inserts in the Cassandra driver