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com.vaadin.base.devserver.stats.

Class DevModeUsageStatistics

  • public class DevModeUsageStatistics
extends Object

    Singleton for collecting development time usage metrics

    All statistics gathering methods in this class are static for easy caller code and they immediately update the stored JSON on disk.

    For internal use only. May be renamed or removed in a future release.

    Since:

    Author:

    Vaadin Ltd

    • Method Detail

      • init

        public static DevModeUsageStatistics init​(String projectFolder,
                                          StatisticsStorage storage,
                                          StatisticsSender sender)

        Initialize the statistics module.

        This should only ever be called in development mode.

        Parameters:

        projectFolder - the folder of the current project

        storage - the statistics storage to use

        sender - the statistics sender to use

        Returns:

        the created instance or null if telemetry is not used

      • handleBrowserData

        public static void handleBrowserData​(elemental.json.JsonObject data)

        Stores telemetry data received from the browser.

        Parameters:

        data - the data from the browser

      • collectEvent

        public static void collectEvent​(String name)

        Increments specified event count in the current project data.

        Good for logging statistics of recurring events.

        Parameters:

        name - Name of the event.

      • collectEvent

        public static void collectEvent​(String name,
                                double value)

        Update a value in usage statistics. Also, automatically aggregates min, max and average of the value.

        Good for logging statistics about chancing values over time.

        Parameters:

        name - Name of the field to update.

        value - The new value to store.

      • set

        public void set​(String name,
                String value)

        Set value of string value in current project statistics data.

        Parameters:

        name - name of the field to set.

        value - the new string value to set.

      • setGlobal

        public void setGlobal​(String name,
                      String value)

        Set value of string field in current statistics data.

        Parameters:

        name - name of the field to set.

        value - the new string value to set.