* Explore: Remove datasource testing on selector
- datasource testing gets in the way of fast query iteration: switching
between datasources can take seconds
- it should not be explore's duty to test datasources in the first place
- removed the concept of datasourceError in Explore, should not be its
concern
- datasource erorrs will express themselves in query errors just fine
- connection errors are still bubbled up
- removed reconnection logic from explore, should not be its concern
- missing labels in loki are still "visible" via an empty label selector
- Loki and Prometheus treated connection errors differently than other
datasources, making sure to pass through the original error message
* Show datasource error in query field for prom/loki/influx
* Removed connection test case, fixed disabled state
* PanelQueryRunner: Need to cache preProcessPanelData function between runs so last result can be remembered
* Better fix for remembering lastResult
* Code simplification
* Simplify code a bit
* I needed to learn some rxjs and understand this more, so just playing around
* Updated
* Removed all the complete calls
* Refactoring
* StreamHandler -> observable start
* progress
* simple singal works
* Handle update time range
* added error handling
* wrap old function
* minor changes
* handle data format in the subscribe function
* Use replay subject to return last value to subscribers
* Set loading state after no response in 50ms
* added missing file
* updated comment
* Added cancelation of network requests
* runRequest: Added unit test scenario framework
* Progress on tests
* minor refactor of unit tests
* updated test
* removed some old code
* Shared queries work again, and also became so much simplier
* unified query and observe methods
* implict any fix
* Fixed closed subject issue
* removed comment
* Use last returned data for loading state
* WIP: Explore to runRequest makover step1
* Minor progress
* Minor progress on explore and runRequest
* minor progress
* Things are starting to work in explore
* Updated prometheus to use new observable query response, greatly simplified code
* Revert refId change
* Found better solution for key/refId/requestId problem
* use observable with loki
* tests compile
* fix loki query prep
* Explore: correct first response handling
* Refactorings
* Refactoring
* Explore: Fixes LoadingState and GraphResults between runs (#18986)
* Refactor: Adds state to DataQueryResponse
* Fix: Fixes so we do not empty results before new data arrives
Fixes: #17409
* Transformations work
* observable test data
* remove single() from loki promise
* Fixed comment
* Explore: Fixes failing Loki and Prometheus unit tests (#18995)
* Tests: Makes datasource tests work again
* Fix: Fixes loki datasource so highligthing works
* Chore: Runs Prettier
* Fixed query runner tests
* Delay loading state indication to 200ms
* Fixed test
* fixed unit tests
* Clear cached calcs
* Fixed bug getProcesedDataFrames
* Fix the correct test is a better idea
* Fix: Fixes so queries in Explore are only run if Graph/Table is shown (#19000)
* Fix: Fixes so queries in Explore are only run if Graph/Table is shown
Fixes: #18618
* Refactor: Removes unnecessary condition
* PanelData: provide legacy data only when needed (#19018)
* no legacy
* invert logic... now compiles
* merge getQueryResponseData and getDataRaw
* update comment about query editor
* use single getData() function
* only send legacy when it is used in explore
* pre process rather than post process
* pre process rather than post process
* Minor refactoring
* Add missing tags to test datasource response
* MixedDatasource: Adds query observable pattern to MixedDatasource (#19037)
* start mixed datasource
* Refactor: Refactors into observable parttern
* Tests: Fixes tests
* Tests: Removes console.log
* Refactor: Adds unique requestId
* WIP: Use data frames in explore
* Explore: everything seems to be working again
* Reworked ResultProcessor tests
* Fixed unit test
* Add some typings and comments
* WIP: inital POC
* Wip: Moving forward
* Wip
* Refactor: Makes loading indicator work for Prometheus
* Refactor: Reverts prom observable queries because they did not work for multiple targets
* Refactor: Transforms all epics into thunks
* Fix: Fixes scanning
* Fix: Fixes so that Instant and TimeSeries Prom query loads in parallel
* Fix: Fixes negation logic error
* Wip: Introduces PanelData as a carries for query responses
* Refactor: Makes errors work again
* Refactor: Simplifies code somewhat and removes comments
* Tests: Fixes broken tests
* Fix query latency
* Remove unused code
* Explore: clear results when you change datasource
* Explore: Clear results on data source change, and fix query hints issue
* Clear results on clear all
* Prometheus: Update logic of when to re-check query hints
* WIP: inital POC
* Wip: Moving forward
* Wip
* Refactor: Makes loading indicator work for Prometheus
* Refactor: Reverts prom observable queries because they did not work for multiple targets
* Refactor: Transforms all epics into thunks
* Fix: Fixes scanning
* Fix: Fixes so that Instant and TimeSeries Prom query loads in parallel
* Fix: Fixes negation logic error
* Propagate errors in stream events, and close streams
* Wip: Compiles and runs
* WIP: Logs Graph partially working
* Refactor: Adds GraphSeriesToggler
* Refactor: Adds tickDecimals to YAxis
* Refactor: Adds TimeZone and PlotSelection to Graph
* Refactor: Makes the graphResult work in Explore
* Refactor: Adds ExploreGraphPanel that is used by Logs and Explore
* Fix: Fixes strange behaviour with ExploreMode not beeing changed
* Fix: Adds onSelectionChanged to GraphWithLegend
* Refactor: Cleans up unused comments
* ExploreGraph: Disable colorpicker
* Explore: Adds support for new loki 'start' and 'end' params for labels endpoint
Also initializes absoluteRange when explore is initialized
Closes#16788
* Explore: Dispatches updateTimeRangeAction instead of passing absoluteRange when initializing
Also removes dependency on sinon from loki language provider test
* Loki: Refactors transformation of absolute time range to URL params into small utility function
* Makes use of rangeToParams() util function in loki language provider test
Also updates LanguageProvider.request() interface so that url should be type string, and adds optional params argument
Adds URL support for mode state (Metrics/Logs). It's important
to be able to share a link to logs when a data source supports
both metrics and logs.
Closes#17101
* Refactor: Removes replaceUrl from actions
* Refactor: Moves saveState thunk to epic
* Refactor: Moves thunks to epics
* Wip: removes resulttype and queries once
* Refactor: LiveTailing uses observer in query
* Refactor: Creates epics folder for epics and move back actioncreators
* Tests: Adds tests for epics and reducer
* Fix: Checks for undefined as well
* Refactor: Cleans up previous live tailing implementation
* Chore: merge with master
* Fix: Fixes url issuses and prom graph in Panels
* Refactor: Removes supportsStreaming and adds sockets to DataSourcePluginMeta instead
* Refactor: Changes the way we create TimeSeries
* Refactor: Renames sockets to streaming
* Refactor: Changes the way Explore does incremental updates
* Refactor: Removes unused method
* Refactor: Adds back Loading indication
