1 files changed, 8 insertions, 26 deletions

diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java b/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
index fa301b5a6..2b6d983c0 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
@@ -21,17 +21,16 @@ import android.content.SharedPreferences;
 import android.content.res.AssetFileDescriptor;
 import android.util.Log;
 
-import com.android.inputmethod.latin.makedict.BinaryDictInputOutput;
-import com.android.inputmethod.latin.makedict.FormatSpec;
+import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader;
+import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
+import com.android.inputmethod.latin.makedict.Ver3DictDecoder;
 import com.android.inputmethod.latin.utils.CollectionUtils;
 import com.android.inputmethod.latin.utils.DictionaryInfoUtils;
 import com.android.inputmethod.latin.utils.LocaleUtils;
 
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.IOException;
 import java.nio.BufferUnderflowException;
-import java.nio.channels.FileChannel;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Locale;
@@ -227,23 +226,12 @@ final public class BinaryDictionaryGetter {
     // those do not include whitelist entries, the new code with an old version of the dictionary
     // would lose whitelist functionality.
     private static boolean hackCanUseDictionaryFile(final Locale locale, final File f) {
-        FileInputStream inStream = null;
         try {
             // Read the version of the file
-            inStream = new FileInputStream(f);
-            final BinaryDictInputOutput.ByteBufferWrapper buffer =
-                    new BinaryDictInputOutput.ByteBufferWrapper(inStream.getChannel().map(
-                            FileChannel.MapMode.READ_ONLY, 0, f.length()));
-            final int magic = buffer.readInt();
-            if (magic != FormatSpec.VERSION_2_MAGIC_NUMBER) {
-                return false;
-            }
-            final int formatVersion = buffer.readInt();
-            final int headerSize = buffer.readInt();
-            final HashMap<String, String> options = CollectionUtils.newHashMap();
-            BinaryDictInputOutput.populateOptions(buffer, headerSize, options);
+            final Ver3DictDecoder dictDecoder = new Ver3DictDecoder(f);
+            final FileHeader header = dictDecoder.readHeader();
 
-            final String version = options.get(VERSION_KEY);
+            final String version = header.mDictionaryOptions.mAttributes.get(VERSION_KEY);
             if (null == version) {
                 // No version in the options : the format is unexpected
                 return false;
@@ -259,14 +247,8 @@ final public class BinaryDictionaryGetter {
             return false;
         } catch (BufferUnderflowException e) {
             return false;
-        } finally {
-            if (inStream != null) {
-                try {
-                    inStream.close();
-                } catch (IOException e) {
-                    // do nothing
-                }
-            }
+        } catch (UnsupportedFormatException e) {
+            return false;
         }
     }