Add maskDebugInfo to display info for debugging build only.

bug: 5335366

Change-Id: I5b6de536bb8e9439b61eb3778fbb1801c8e898c8

1 files changed, 15 insertions, 0 deletions

diff --git a/gallerycommon/src/com/android/gallery3d/common/Utils.java b/gallerycommon/src/com/android/gallery3d/common/Utils.java
index 78449ae6b..ea289a628 100644
--- a/gallerycommon/src/com/android/gallery3d/common/Utils.java
+++ b/gallerycommon/src/com/android/gallery3d/common/Utils.java
@@ -42,6 +42,11 @@ public class Utils {
 
     private static long[] sCrcTable = new long[256];
 
+    private static final boolean IS_DEBUG_BUILD =
+            Build.TYPE.equals("eng") || Build.TYPE.equals("userdebug");
+
+    private static final String MASK_STRING = "********************************";
+
     // Throws AssertionError if the input is false.
     public static void assertTrue(boolean cond) {
         if (!cond) {
@@ -402,4 +407,14 @@ public class Utils {
             if (parcel != null) parcel.recycle();
         }
     }
+
+    // Mask information for debugging only. It returns <code>info.toString()</code> directly
+    // for debugging build (i.e., 'eng' and 'userdebug') and returns a mask ("****")
+    // in release build to protect the information (e.g. for privacy issue).
+    public static String maskDebugInfo(Object info) {
+        if (info == null) return null;
+        String s = info.toString();
+        int length = Math.min(s.length(), MASK_STRING.length());
+        return IS_DEBUG_BUILD ? s : MASK_STRING.substring(0, length);
+    }
 }