server: out-of-spec isFiltered parameter used in DATA_TREE data providers

[bhufmann]

Bug Description:

The server and clients (e.g. vscode-trace-extension) uses out-of-spec isFiltered parameter for in DATA_TREE data providers to query the back-end date for a given time range. For example, the vscode-trace-extension passes the isFiltered (true) and requested_timerange to get the time-range specific statistic for any DATA_TREE data providers .e.g Function Duration Statistic of the Trace Compass server. The Trace Compass server then appends the range statistics as Selection sub-tree beside the Total statistics sub-tree.

Other servers that are not the Trace Compass server won't benefit from this feature.

To fix this add the isFiltered parameter to the TSP API or update the trace-server back-end (and front-end) to not requiring that flag.

Note:

• See also Consolidate input query parameters across views for time ranges eclipse-cdt-cloud/trace-server-protocol#131

Steps to Reproduce:

1. Run Trace Compass Server
2. Run vscode-trace-extension
3. Open LTTng UST trace with call stack events
4. Open Function Duration Statistics view
5. Open Developer Tools and go to Network tab
6. Make a time selection in the Overview view

The Function Duration View will show the Selection sub-tree with selection based statistics

Additional Information

• Operating System: Any
• Trace Compass Version: master branch of today