[RF1] Remove files that don't match the expected format, step 1

This implements the skeleton implementation, and enables a
fallback implementation in the case the file is coming from the
dictionary provider.
- A better scheme should be used for provider-supplied dicts.
- This does not implement the solution for device-generated
    dicts yet. This will come in a future change.
- This does not implement the checking process on the native
    side yet. This will come in a future change.

Bug: 11281748
Change-Id: Ifa6e237d19dfbffe503e3674915480ea867b0ddf

1 files changed, 9 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/ReadOnlyBinaryDictionary.java b/java/src/com/android/inputmethod/latin/ReadOnlyBinaryDictionary.java
index 68505ce38..c8e4014bb 100644
--- a/java/src/com/android/inputmethod/latin/ReadOnlyBinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/ReadOnlyBinaryDictionary.java
@@ -44,6 +44,15 @@ public final class ReadOnlyBinaryDictionary extends Dictionary {
                 locale, dictType, false /* isUpdatable */);
     }
 
+    public boolean hasValidContents() {
+        mLock.readLock().lock();
+        try {
+            return mBinaryDictionary.hasValidContents();
+        } finally {
+            mLock.readLock().unlock();
+        }
+    }
+
     public boolean isValidDictionary() {
         return mBinaryDictionary.isValidDictionary();
     }