Add auto detection and decoding of dictionary files. (A2)

Bug: 7388852
Change-Id: I25e755fc15f5b383acc046f668e9681efa4f0c2f

2 files changed, 15 insertions, 2 deletions

diff --git a/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java b/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
index da5236974..031306e1d 100644
--- a/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
+++ b/java/src/com/android/inputmethod/latin/makedict/BinaryDictInputOutput.java
@@ -1699,6 +1699,14 @@ public final class BinaryDictInputOutput {
     }
 
     /**
+     * Helper method to pass a file name instead of a File object to isBinaryDictionary.
+     */
+    public static boolean isBinaryDictionary(final String filename) {
+        final File file = new File(filename);
+        return isBinaryDictionary(file);
+    }
+
+    /**
      * Basic test to find out whether the file is a binary dictionary or not.
      *
      * Concretely this only tests the magic number.
@@ -1706,10 +1714,9 @@ public final class BinaryDictInputOutput {
      * @param filename The name of the file to test.
      * @return true if it's a binary dictionary, false otherwise
      */
-    public static boolean isBinaryDictionary(final String filename) {
+    public static boolean isBinaryDictionary(final File file) {
         FileInputStream inStream = null;
         try {
-            final File file = new File(filename);
             inStream = new FileInputStream(file);
             final ByteBuffer buffer = inStream.getChannel().map(
                     FileChannel.MapMode.READ_ONLY, 0, file.length());
diff --git a/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java b/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
index 7fd13d78b..44537986b 100644
--- a/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
+++ b/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
@@ -16,6 +16,7 @@
 
 package com.android.inputmethod.latin.makedict;
 
+import com.android.inputmethod.annotations.UsedForTesting;
 import com.android.inputmethod.latin.Constants;
 
 import java.util.ArrayList;
@@ -141,6 +142,11 @@ public final class FusionDictionary implements Iterable<Word> {
             return NOT_A_TERMINAL != mFrequency;
         }
 
+        @UsedForTesting
+        public int getFrequency() {
+            return mFrequency;
+        }
+
         public boolean hasSeveralChars() {
             assert(mChars.length > 0);
             return 1 < mChars.length;