For #4456: Adds total_uri_count to metrics core ping (#6003)

app/metrics.yaml

@@ -426,6 +426,20 @@ metrics:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-03-01"
+  total_uri_count:
+    type: string
+    lifetime: application
+    description: >
+      A counter of URIs visited by the user in the current session, including page reloads. This does not include background page requests and URIs from embedded pages or private browsing.
+    send_in_pings:
+      - metrics
+    bugs:
+      - https://github.com/mozilla-mobile/fenix/issue/4456
+    data_reviews:
+      - https://github.com/mozilla-mobile/fenix/pull/TODO
+    notification_emails:
+      - fenix-core@mozilla.com
+    expires: "2020-03-01"
 
 
 search.default_engine:

app/src/main/java/org/mozilla/fenix/FenixApplication.kt

@@ -64,6 +64,8 @@ open class FenixApplication : Application() {
         registerRxExceptionHandling()
         enableStrictMode()
 
+        applicationContext.settings().totalUriCount = 0
+
         if (!isMainProcess()) {
             // If this is not the main process then do not continue with the initialization here. Everything that
             // follows only needs to be done in our app's main process and should not be done in other processes like

app/src/main/java/org/mozilla/fenix/browser/UriOpenedObserver.kt

@@ -4,6 +4,7 @@
 
 package org.mozilla.fenix.browser
 
+import android.content.Context
 import androidx.annotation.VisibleForTesting
 import androidx.fragment.app.FragmentActivity
 import androidx.lifecycle.LifecycleOwner
@@ -13,14 +14,17 @@ import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.metrics
+import org.mozilla.fenix.ext.settings
 
 class UriOpenedObserver(
+    private val context: Context,
     private val owner: LifecycleOwner,
     private val sessionManager: SessionManager,
     private val metrics: MetricController
 ) : SessionManager.Observer {
 
     constructor(activity: FragmentActivity) : this(
+        activity,
         activity,
         activity.components.core.sessionManager,
         activity.metrics
@@ -58,6 +62,7 @@ class UriOpenedObserver(
             } else if (urlLoading != null && !session.private && temporaryFix.shouldSendEvent(session.url)) {
                 temporaryFix.eventSentFor = session.url
                 metrics.track(Event.UriOpened)
+                context.settings().totalUriCount += 1
             }
         }
     }

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -470,6 +470,7 @@ class GleanMetricsService(private val context: Context) : MetricsService {
             }
             mozillaProducts.set(MozillaProductDetector.getInstalledMozillaProducts(context))
             adjustCampaign.set(context.settings().adjustCampaignId)
+            totalUriCount.set(context.settings().totalUriCount.toString())
         }
 
         SearchDefaultEngine.apply {

app/src/main/java/org/mozilla/fenix/utils/Settings.kt

@@ -312,6 +312,11 @@ class Settings private constructor(
         default = 0
     )
 
+    var totalUriCount by longPreference(
+        appContext.getPreferenceKey(R.string.pref_key_total_uri),
+        default = 0
+    )
+
     fun addSearchWidgetInstalled(count: Int) {
         val key = appContext.getPreferenceKey(R.string.pref_key_search_widget_installed)
         val newValue = preferences.getInt(key, 0) + count

app/src/main/res/values/preference_keys.xml

@@ -113,4 +113,6 @@
     <string name="pref_key_reader_mode_notification" translatable="false">pref_key_reader_mode_notification</string>
     <string name="pref_key_adjust_campaign" translatable="false">pref_key_adjust_campaign</string>
     <string name="pref_key_testing_stage" translatable="false">pref_key_testing_stage</string>
+
+    <string name="pref_key_total_uri" translatable="false">pref_key_total_uri</string>
 </resources>

app/src/test/java/org/mozilla/fenix/browser/UriOpenedObserverTest.kt

@@ -4,6 +4,7 @@
 
 package org.mozilla.fenix.browser
 
+import android.content.Context
 import androidx.lifecycle.LifecycleOwner
 import io.mockk.every
 import io.mockk.mockk
@@ -17,12 +18,14 @@ import org.mozilla.fenix.components.metrics.MetricController
 
 class UriOpenedObserverTest {
 
+    private lateinit var context: Context
     private lateinit var owner: LifecycleOwner
     private lateinit var sessionManager: SessionManager
     private lateinit var metrics: MetricController
 
     @Before
     fun setup() {
+        context = mockk(relaxed = true)
         owner = mockk(relaxed = true)
         sessionManager = mockk(relaxed = true)
         metrics = mockk(relaxed = true)
@@ -30,13 +33,13 @@ class UriOpenedObserverTest {
 
     @Test
     fun `registers self as observer`() {
-        val observer = UriOpenedObserver(owner, sessionManager, metrics)
+        val observer = UriOpenedObserver(context, owner, sessionManager, metrics)
         verify { sessionManager.register(observer, owner) }
     }
 
     @Test
     fun `registers single session observer`() {
-        val observer = UriOpenedObserver(owner, sessionManager, metrics)
+        val observer = UriOpenedObserver(context, owner, sessionManager, metrics)
         val session: Session = mockk(relaxed = true)
 
         observer.onSessionAdded(session)
@@ -48,7 +51,7 @@ class UriOpenedObserverTest {
 
     @Test
     fun `tracks that a url was loaded`() {
-        val observer = UriOpenedObserver(owner, sessionManager, metrics).singleSessionObserver
+        val observer = UriOpenedObserver(context, owner, sessionManager, metrics).singleSessionObserver
         val session: Session = mockk(relaxed = true)
         every { session.url } returns "https://mozilla.com"