AID prefix registration.

Bug: 16517161
Change-Id: I4e008b84fd1372b17a98437ec8a6b71c33d7cd05

4 files changed, 31 insertions, 3 deletions

diff --git a/core/java/android/nfc/INfcCardEmulation.aidl b/core/java/android/nfc/INfcCardEmulation.aidl
index 521f4fd..d1b132c 100644
--- a/core/java/android/nfc/INfcCardEmulation.aidl
+++ b/core/java/android/nfc/INfcCardEmulation.aidl
@@ -36,4 +36,5 @@ interface INfcCardEmulation
     List<ApduServiceInfo> getServices(int userHandle, in String category);
     boolean setPreferredService(in ComponentName service);
     boolean unsetPreferredService();
+    boolean supportsAidPrefixRegistration();
 }
diff --git a/core/java/android/nfc/cardemulation/AidGroup.java b/core/java/android/nfc/cardemulation/AidGroup.java
index 6af7b7e..f440874 100644
--- a/core/java/android/nfc/cardemulation/AidGroup.java
+++ b/core/java/android/nfc/cardemulation/AidGroup.java
@@ -78,7 +78,7 @@ public final class AidGroup implements Parcelable {
     }
 
     /**
-     * @return the list of  AIDs in this group
+     * @return the list of AIDs in this group
      */
     public List<String> getAids() {
         return aids;
diff --git a/core/java/android/nfc/cardemulation/ApduServiceInfo.java b/core/java/android/nfc/cardemulation/ApduServiceInfo.java
index 0df87c1..646134e 100644
--- a/core/java/android/nfc/cardemulation/ApduServiceInfo.java
+++ b/core/java/android/nfc/cardemulation/ApduServiceInfo.java
@@ -224,6 +224,20 @@ public final class ApduServiceInfo implements Parcelable {
                         Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
                     }
                     a.recycle();
+                } else if (eventType == XmlPullParser.START_TAG &&
+                        "aid-prefix-filter".equals(tagName) && currentGroup != null) {
+                    final TypedArray a = res.obtainAttributes(attrs,
+                            com.android.internal.R.styleable.AidFilter);
+                    String aid = a.getString(com.android.internal.R.styleable.AidFilter_name).
+                            toUpperCase();
+                    // Add wildcard char to indicate prefix
+                    aid.concat("*");
+                    if (CardEmulation.isValidAid(aid) && !currentGroup.aids.contains(aid)) {
+                        currentGroup.aids.add(aid);
+                    } else {
+                        Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
+                    }
+                    a.recycle();
                 }
             }
         } catch (NameNotFoundException e) {
diff --git a/core/java/android/nfc/cardemulation/CardEmulation.java b/core/java/android/nfc/cardemulation/CardEmulation.java
index 0e0c255..64c2bc2 100644
--- a/core/java/android/nfc/cardemulation/CardEmulation.java
+++ b/core/java/android/nfc/cardemulation/CardEmulation.java
@@ -515,8 +515,21 @@ public final class CardEmulation {
      * @return whether AID prefix registering is supported on this device.
      */
     public boolean supportsAidPrefixRegistration() {
-        // TODO
-        return false;
+        try {
+            return sService.supportsAidPrefixRegistration();
+        } catch (RemoteException e) {
+            recoverService();
+            if (sService == null) {
+                Log.e(TAG, "Failed to recover CardEmulationService.");
+                return false;
+            }
+            try {
+                return sService.supportsAidPrefixRegistration();
+            } catch (RemoteException ee) {
+                Log.e(TAG, "Failed to reach CardEmulationService.");
+                return false;
+            }
+        }
     }
 
     /**