Add BinaryDictReader.

Bug: 9618601

Change-Id: Ief07fa0c3c4f7f5999a3fafcef4e47b6b6fd8143

2 files changed, 10 insertions, 23 deletions

diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java
index c2c77d61a..d0b460af0 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtils.java
@@ -17,6 +17,7 @@
 package com.android.inputmethod.latin.dicttool;
 
 import com.android.inputmethod.latin.makedict.BinaryDictInputOutput;
+import com.android.inputmethod.latin.makedict.BinaryDictReader;
 import com.android.inputmethod.latin.makedict.FusionDictionary;
 import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
 
@@ -185,16 +186,15 @@ public final class BinaryDictOffdeviceUtils {
                     crash(filename, new RuntimeException(
                             filename + " does not seem to be a dictionary file"));
                 } else {
-                    final FileInputStream inStream = new FileInputStream(decodedSpec.mFile);
-                    final ByteBuffer buffer = inStream.getChannel().map(
-                            FileChannel.MapMode.READ_ONLY, 0, decodedSpec.mFile.length());
+                    final BinaryDictReader reader = new BinaryDictReader(decodedSpec.mFile);
+                    reader.openBuffer(
+                            new BinaryDictReader.FusionDictionaryBufferFromByteArrayFactory());
                     if (report) {
                         System.out.println("Format : Binary dictionary format");
                         System.out.println("Packaging : " + decodedSpec.describeChain());
                         System.out.println("Uncompressed size : " + decodedSpec.mFile.length());
                     }
-                    return BinaryDictInputOutput.readDictionaryBinary(
-                            new BinaryDictInputOutput.ByteBufferWrapper(buffer), null);
+                    return BinaryDictInputOutput.readDictionaryBinary(reader, null);
                 }
             }
         } catch (IOException e) {
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java
index cc890f60c..9bce988ac 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/DictionaryMaker.java
@@ -17,6 +17,7 @@
 package com.android.inputmethod.latin.dicttool;
 
 import com.android.inputmethod.latin.makedict.BinaryDictInputOutput;
+import com.android.inputmethod.latin.makedict.BinaryDictReader;
 import com.android.inputmethod.latin.makedict.FormatSpec;
 import com.android.inputmethod.latin.makedict.FusionDictionary;
 import com.android.inputmethod.latin.makedict.MakedictLog;
@@ -265,24 +266,10 @@ public class DictionaryMaker {
      */
     private static FusionDictionary readBinaryFile(final String binaryFilename)
             throws FileNotFoundException, IOException, UnsupportedFormatException {
-        FileInputStream inStream = null;
-
-        try {
-            final File file = new File(binaryFilename);
-            inStream = new FileInputStream(file);
-            final ByteBuffer buffer = inStream.getChannel().map(
-                    FileChannel.MapMode.READ_ONLY, 0, file.length());
-            return BinaryDictInputOutput.readDictionaryBinary(
-                    new BinaryDictInputOutput.ByteBufferWrapper(buffer), null);
-        } finally {
-            if (inStream != null) {
-                try {
-                    inStream.close();
-                } catch (IOException e) {
-                    // do nothing
-                }
-            }
-        }
+        final File file = new File(binaryFilename);
+        final BinaryDictReader reader = new BinaryDictReader(file);
+        reader.openBuffer(new BinaryDictReader.FusionDictionaryBufferFromByteBufferFactory());
+        return BinaryDictInputOutput.readDictionaryBinary(reader, null);
     }
 
     /**