Overview

In Opencast, the "Statistics" feature can be seen as a set of charts which can be displayed in the Admin UI. Currently, statistics for three so-called "resource types" are available:

• Statistics for the resource type EPISODE are displayed in a tab in the event details dialog.
• Statistics for the resource type SERIES are displayed in a tab in the series details dialog.
• Statistics for the resource type ORGANIZATION are displayed in the "Statistics" menu of Opencast.

These tabs/menus are only visible if the statistics feature is configured. For the statistics to work, you need a data source from which Opencast can retrieve the data to display. Currently, InfluxDB and Matomo are the only supported data sources.

General Configuration

To enable the statistics view in the admin interface, set prop.admin.statisttics.enabled=true in etc/org.opencastproject.organization-mh_default_org.cfg.

To support the detailed configuration of the charts to be shown in the Admin UI, Opencast has a concept called Statistics Providers. Each statistics provider can be configured separately and for each provider, there is one chart displayed in the Admin UI.

The configuration files of the providers have to be stored at etc/statistics and they have to follow a certain naming convention. Configuration files of providers using InfluxDB have to be named starting with influx., configuration files for providers using Matomo have to start with matomo. All provider configurations have to be in json format. So e.g. influx.views.episode.sum.json would be a valid name. For more details on these configuration files, please refer to the corresponding section for the statistics provider in question (InfluxDB Statistics Provider, Matomo Statistics Provider).

CSV Exports

Statistics can be exported to CSV files by clicking the "download" button in the top right corner of a graph. Per default, the export will contain the data which the graph currently displays. For series statistics, it is possible to change this behavior in the way that exported series statistics contain the data of all events of a series instead of just the top level series data. To enable this, it is necessary to specify which Statistics Provider should be used to get the episode data. See the configuration file org.opencastproject.statistics.export.impl.StatisticsExportServiceImpl.cfg for details.