Java Code Examples for org.chromium.base.metrics.RecordHistogram#recordPercentageHistogram()

/**
 * Record UMA on data savings displayed to the user. Called when the user views the data
 * savings in the UI.
 * @param compressedTotalBytes The total data used as shown to the user.
 * @param originalTotalBytes Original total size as shown to the user.
 * @param percentage Percentage savings as shown to the user.
 */
public static void dataReductionProxyUserViewedSavings(
        long compressedTotalBytes, long originalTotalBytes, double percentage) {
    // The byte counts are stored in KB. The largest histogram bucket is set to ~1 TB.
    RecordHistogram.recordCustomCountHistogram(USER_VIEWED_ORIGINAL_SIZE_HISTOGRAM_NAME,
            (int) (originalTotalBytes / 1024), 1, 1000 * 1000 * 1000, 100);
    RecordHistogram.recordCustomCountHistogram(USER_VIEWED_SAVINGS_SIZE_HISTOGRAM_NAME,
            (int) ((originalTotalBytes - compressedTotalBytes) / 1024), 1, 1000 * 1000 * 1000,
            100);

    RecordHistogram.recordPercentageHistogram(
            USER_VIEWED_SAVINGS_PERCENT_HISTOGRAM_NAME, (int) percentage);
}
 

/**
 * Records UMA data when the Offline Pages Background Load service awakens.
 * @param context android context
 */
public static void recordWakeupUMA(Context context, long taskScheduledTimeMillis) {
    DeviceConditions deviceConditions = getDeviceConditions(context);
    if (deviceConditions == null) return;

    // Report charging state.
    RecordHistogram.recordBooleanHistogram(
            "OfflinePages.Wakeup.ConnectedToPower", deviceConditions.isPowerConnected());

    // Report battery percentage.
    RecordHistogram.recordPercentageHistogram(
            "OfflinePages.Wakeup.BatteryPercentage", deviceConditions.getBatteryPercentage());

    // Report the default network found (or none, if we aren't connected).
    int connectionType = deviceConditions.getNetConnectionType();
    Log.d(TAG, "Found default network of type " + connectionType);
    RecordHistogram.recordEnumeratedHistogram("OfflinePages.Wakeup.NetworkAvailable",
            connectionType, ConnectionType.CONNECTION_LAST + 1);

    // Collect UMA on the time since the request started.
    long nowMillis = System.currentTimeMillis();
    long delayInMilliseconds = nowMillis - taskScheduledTimeMillis;
    if (delayInMilliseconds <= 0) {
        return;
    }
    RecordHistogram.recordLongTimesHistogram(
            "OfflinePages.Wakeup.DelayTime",
            delayInMilliseconds,
            TimeUnit.MILLISECONDS);
}
 

private void recordBatteryLevelAtStart() {
    mDeviceState.saveCurrentBatteryPercentage(mAppContext);

    // Report battery percentage.
    RecordHistogram.recordPercentageHistogram(
            "Precache.BatteryPercentage.Start", mDeviceState.getSavedBatteryPercentage());
}
 

private void recordBatteryLevelAtEnd() {
    int delta_percentage = mDeviceState.getCurrentBatteryPercentage(mAppContext)
            - mDeviceState.getSavedBatteryPercentage();
    if (delta_percentage >= 0) {
        RecordHistogram.recordPercentageHistogram(
                "Precache.BatteryPercentageDiff.End", delta_percentage);
    }
}
 

/**
 * Logs the number of impressions and CTR for the previous week for the current user.
 * @param previousWeekImpressions The number of times the user saw the Contextual Search Bar.
 * @param previousWeekCtr The CTR expressed as a percentage.
 */
public static void logPreviousWeekCtr(int previousWeekImpressions, int previousWeekCtr) {
    RecordHistogram.recordCountHistogram(
            "Search.ContextualSearchPreviousWeekImpressions", previousWeekImpressions);
    RecordHistogram.recordPercentageHistogram(
            "Search.ContextualSearchPreviousWeekCtr", previousWeekCtr);
}
 

/**
 * Logs the number of impressions and CTR for previous 28-day period for the current user.
 * @param previous28DayImpressions The number of times the user saw the Contextual Search Bar.
 * @param previous28DayCtr The CTR expressed as a percentage.
 */
public static void logPrevious28DayCtr(int previous28DayImpressions, int previous28DayCtr) {
    RecordHistogram.recordCountHistogram(
            "Search.ContextualSearchPrevious28DayImpressions", previous28DayImpressions);
    RecordHistogram.recordPercentageHistogram(
            "Search.ContextualSearchPrevious28DayCtr", previous28DayCtr);
}
 

/**
 * Records UMA data when the Offline Pages Background Load service awakens.
 * @param context android context
 */
public static void recordWakeupUMA(Context context, long taskScheduledTimeMillis) {
    DeviceConditions deviceConditions = getDeviceConditions(context);
    if (deviceConditions == null) return;

    // Report charging state.
    RecordHistogram.recordBooleanHistogram(
            "OfflinePages.Wakeup.ConnectedToPower", deviceConditions.isPowerConnected());

    // Report battery percentage.
    RecordHistogram.recordPercentageHistogram(
            "OfflinePages.Wakeup.BatteryPercentage", deviceConditions.getBatteryPercentage());

    // Report the default network found (or none, if we aren't connected).
    int connectionType = deviceConditions.getNetConnectionType();
    Log.d(TAG, "Found default network of type " + connectionType);
    RecordHistogram.recordEnumeratedHistogram("OfflinePages.Wakeup.NetworkAvailable",
            connectionType, ConnectionType.CONNECTION_LAST + 1);

    // Collect UMA on the time since the request started.
    long nowMillis = System.currentTimeMillis();
    long delayInMilliseconds = nowMillis - taskScheduledTimeMillis;
    if (delayInMilliseconds <= 0) {
        return;
    }
    RecordHistogram.recordLongTimesHistogram(
            "OfflinePages.Wakeup.DelayTime",
            delayInMilliseconds,
            TimeUnit.MILLISECONDS);
}
 

/**
 * Records UMA data when the Offline Pages Background Load service awakens.
 * @param context android context
 */
public static void recordWakeupUMA(Context context, long taskScheduledTimeMillis) {
    DeviceConditions deviceConditions = DeviceConditions.getCurrentConditions(context);
    if (deviceConditions == null) return;

    // Report charging state.
    RecordHistogram.recordBooleanHistogram(
            "OfflinePages.Wakeup.ConnectedToPower", deviceConditions.isPowerConnected());

    // Report battery percentage.
    RecordHistogram.recordPercentageHistogram(
            "OfflinePages.Wakeup.BatteryPercentage", deviceConditions.getBatteryPercentage());

    // Report the default network found (or none, if we aren't connected).
    int connectionType = deviceConditions.getNetConnectionType();
    Log.d(TAG, "Found default network of type " + connectionType);
    RecordHistogram.recordEnumeratedHistogram("OfflinePages.Wakeup.NetworkAvailable",
            connectionType, ConnectionType.CONNECTION_LAST + 1);

    // Collect UMA on the time since the request started.
    long nowMillis = System.currentTimeMillis();
    long delayInMilliseconds = nowMillis - taskScheduledTimeMillis;
    if (delayInMilliseconds <= 0) {
        return;
    }
    RecordHistogram.recordLongTimesHistogram(
            "OfflinePages.Wakeup.DelayTime",
            delayInMilliseconds,
            TimeUnit.MILLISECONDS);
}
 

/**
 * Logs the number of impressions and CTR for previous 28-day period for the current user.
 * @param previous28DayImpressions The number of times the user saw the Contextual Search Bar.
 * @param previous28DayCtr The CTR expressed as a percentage.
 */
public static void logPrevious28DayCtr(int previous28DayImpressions, int previous28DayCtr) {
    RecordHistogram.recordCountHistogram(
            "Search.ContextualSearchPrevious28DayImpressions", previous28DayImpressions);
    RecordHistogram.recordPercentageHistogram(
            "Search.ContextualSearchPrevious28DayCtr", previous28DayCtr);
}
 

private void recordBatteryLevelAtStart() {
    mDeviceState.saveCurrentBatteryPercentage(mAppContext);

    // Report battery percentage.
    RecordHistogram.recordPercentageHistogram(
            "Precache.BatteryPercentage.Start", mDeviceState.getSavedBatteryPercentage());
}
 

private void recordBatteryLevelAtEnd() {
    int delta_percentage = mDeviceState.getCurrentBatteryPercentage(mAppContext)
            - mDeviceState.getSavedBatteryPercentage();
    if (delta_percentage >= 0) {
        RecordHistogram.recordPercentageHistogram(
                "Precache.BatteryPercentageDiff.End", delta_percentage);
    }
}
 

/**
 * Logs the number of impressions and CTR for the previous week for the current user.
 * @param previousWeekImpressions The number of times the user saw the Contextual Search Bar.
 * @param previousWeekCtr The CTR expressed as a percentage.
 */
public static void logPreviousWeekCtr(int previousWeekImpressions, int previousWeekCtr) {
    RecordHistogram.recordCountHistogram(
            "Search.ContextualSearchPreviousWeekImpressions", previousWeekImpressions);
    RecordHistogram.recordPercentageHistogram(
            "Search.ContextualSearchPreviousWeekCtr", previousWeekCtr);
}
 

/**
 * Record the ratio of the time the media element was detached from the remote playback session
 * to the total duration of the session (as from when the element has been attached till when
 * the session stopped or disconnected), in percents.
 *
 * @param percentage The ratio in percents.
 */
public static void recordRemoteSessionTimeWithoutMediaElementPercentage(int percentage) {
    if (LibraryLoader.isInitialized()) {
        RecordHistogram.recordPercentageHistogram(
                "Cast.Sender.SessionTimeWithoutMediaElementPercentage", percentage);
    }
}
 

/**
 * Record the ratio of the time the media element was detached from the remote playback session
 * to the total duration of the session (as from when the element has been attached till when
 * the session stopped or disconnected), in percents.
 *
 * @param percentage The ratio in percents.
 */
public static void recordRemoteSessionTimeWithoutMediaElementPercentage(int percentage) {
    if (LibraryLoader.isInitialized()) {
        RecordHistogram.recordPercentageHistogram(
                "Cast.Sender.SessionTimeWithoutMediaElementPercentage", percentage);
    }
}
 

/**
 * Record the ratio of the time the media element was detached from the remote playback session
 * to the total duration of the session (as from when the element has been attached till when
 * the session stopped or disconnected), in percents.
 *
 * @param percentage The ratio in percents.
 */
public static void recordRemoteSessionTimeWithoutMediaElementPercentage(int percentage) {
    if (LibraryLoader.isInitialized()) {
        RecordHistogram.recordPercentageHistogram(
                "Cast.Sender.SessionTimeWithoutMediaElementPercentage", percentage);
    }
}
 

/**
 * Records metrics related to downloading a page. Should be called after a tap on the download
 * page button.
 * @param tab The Tab containing the page being downloaded.
 */
public static void recordDownloadPageMetrics(Tab tab) {
    RecordHistogram.recordPercentageHistogram("OfflinePages.SavePage.PercentLoaded",
            tab.getProgress());
}
 

/**
 * Records metrics related to downloading a page. Should be called after a tap on the download
 * page button.
 * @param tab The Tab containing the page being downloaded.
 */
public static void recordDownloadPageMetrics(Tab tab) {
    RecordHistogram.recordPercentageHistogram("OfflinePages.SavePage.PercentLoaded",
            tab.getProgress());
}