Bug 1572806 - Added profile_date parameter to Telemetry Activation Ping r=VladBaicu

Profile creation date (profile_date) is now embedded in Telemetry Activation Ping.

Differential Revision: https://phabricator.services.mozilla.com/D47097

--HG--
extra : moz-landing-system : lando

mobile/android/base/java/org/mozilla/gecko/telemetry/TelemetryActivationPingDelegate.java

@@ -90,6 +90,8 @@ public class TelemetryActivationPingDelegate extends BrowserAppDelegate {
                 pingBuilder.setClientID(clientID);
             }
 
+            pingBuilder.setProfileCreationDate(TelemetryActivationPingBuilder.getProfileCreationDate(activity, profile));
+
             getTelemetryDispatcher().queuePingForUpload(activity, pingBuilder);
         });
     }

mobile/android/base/java/org/mozilla/gecko/telemetry/pingbuilders/TelemetryActivationPingBuilder.java

@@ -4,8 +4,11 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Build;
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.annotation.WorkerThread;
 
 import org.mozilla.gecko.AppConstants;
+import org.mozilla.gecko.GeckoProfile;
 import org.mozilla.gecko.GeckoSharedPrefs;
 import org.mozilla.gecko.Locales;
 import org.mozilla.gecko.distribution.DistributionStoreCallback;
@@ -17,6 +20,7 @@ import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Locale;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Builds a {@link TelemetryOutgoingPing} representing a activation ping.
@@ -43,6 +47,7 @@ public class TelemetryActivationPingBuilder extends TelemetryPingBuilder {
     private static final String OS_ATTR = "os";
     private static final String OS_VERSION = "osversion";
     private static final String PING_CREATION_DATE = "created";
+    private static final String PROFILE_CREATION_DATE = "profile_date";
     private static final String TIMEZONE_OFFSET = "tz";
     private static final String APP_NAME = "app_name";
     private static final String CHANNEL = "channel";
@@ -125,4 +130,28 @@ public class TelemetryActivationPingBuilder extends TelemetryPingBuilder {
         payload.put(CLIENT_ID, clientID);
         return this;
     }
+
+    /**
+     * @param date The profile creation date in days to the unix epoch (not millis!), or null if there is an error.
+     */
+    public TelemetryActivationPingBuilder setProfileCreationDate(@Nullable final Long date) {
+        if (date != null && date < 0) {
+            throw new IllegalArgumentException("Expect positive date value. Received: " + date);
+        }
+        payload.put(PROFILE_CREATION_DATE, date);
+        return this;
+    }
+
+    /**
+     * @return the profile creation date in the format expected by
+     *         {@link TelemetryActivationPingBuilder#setProfileCreationDate(Long)}.
+     */
+    @WorkerThread
+    public static Long getProfileCreationDate(final Context context, final GeckoProfile profile) {
+        final long profileMillis = profile.getAndPersistProfileCreationDate(context);
+        if (profileMillis < 0) {
+            return null;
+        }
+        return (long) Math.floor((double) profileMillis / TimeUnit.DAYS.toMillis(1));
+    }
 }