cmsdk: Mandate cm sb feature xml's for service implementation.

  The feature xml plays two roles:

      1) To allow sdk interface (constructor) to throw when system
      service is unavailable. This allows for clearer platform
      development debugging.

      2) To allow for simpler disambiguation of what services to
      instrument in a modular environment.

TICKET: CYNGNOS-2289
Change-Id: Ice0ae7c45aecbb34e0ea667128b040906c46d7e7

1 files changed, 6 insertions, 0 deletions

diff --git a/cm/lib/main/java/org/cyanogenmod/platform/internal/CMStatusBarManagerService.java b/cm/lib/main/java/org/cyanogenmod/platform/internal/CMStatusBarManagerService.java
index ee913ed..5905836 100644
--- a/cm/lib/main/java/org/cyanogenmod/platform/internal/CMStatusBarManagerService.java
+++ b/cm/lib/main/java/org/cyanogenmod/platform/internal/CMStatusBarManagerService.java
@@ -83,6 +83,12 @@ public class CMStatusBarManagerService extends SystemService {
 
     @Override
     public void onStart() {
+        if (!mContext.getPackageManager().hasSystemFeature(
+                CMContextConstants.Features.STATUSBAR)) {
+            Log.wtf(TAG, "CM statusbar service started by system server but feature xml not" +
+                    " declared. Not publishing binder service!");
+            return;
+        }
         Log.d(TAG, "registerCMStatusBar cmstatusbar: " + this);
         mCustomTileListeners = new CustomTileListeners();
         publishBinderService(CMContextConstants.CM_STATUS_BAR_SERVICE, mService);