Add traverse session

Bug: 6942265

Change-Id: I384cf701f5ee44c4b1037e5b8ddfa3d570286f55

2 files changed, 62 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionary.java b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
index 534cffb2d..7e6c53e2f 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
@@ -58,6 +58,7 @@ public class BinaryDictionary extends Dictionary {
     private final int[] mOutputTypes = new int[MAX_RESULTS];
 
     private final boolean mUseFullEditDistance;
+    private final DicTraverseSession mDicTraverseSession;
 
     /**
      * Constructor for the binary dictionary. This is supposed to be called from the
@@ -76,6 +77,7 @@ public class BinaryDictionary extends Dictionary {
         super(dictType);
         mUseFullEditDistance = useFullEditDistance;
         loadDictionary(filename, offset, length);
+        mDicTraverseSession = new DicTraverseSession(locale);
     }
 
     static {
@@ -187,6 +189,7 @@ public class BinaryDictionary extends Dictionary {
 
     @Override
     public synchronized void close() {
+        mDicTraverseSession.close();
         closeInternal();
     }
 
diff --git a/java/src/com/android/inputmethod/latin/DicTraverseSession.java b/java/src/com/android/inputmethod/latin/DicTraverseSession.java
new file mode 100644
index 000000000..d0c70f3ad
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/DicTraverseSession.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin;
+
+import java.util.Locale;
+
+public class DicTraverseSession {
+    static {
+        JniUtils.loadNativeLibrary();
+    }
+
+    private long mNativeDicTraverseSession;
+
+    public DicTraverseSession(Locale locale) {
+        mNativeDicTraverseSession = createNativeDicTraverseSession(
+                locale != null ? locale.toString() : "");
+    }
+
+    private native long setDicTraverseSessionNative(String locale);
+    private native void releaseDicTraverseSessionNative(long nativeDicTraverseSession);
+
+    private final long createNativeDicTraverseSession(String locale) {
+        return setDicTraverseSessionNative(locale);
+    }
+
+    private void closeInternal() {
+        if (mNativeDicTraverseSession != 0) {
+            releaseDicTraverseSessionNative(mNativeDicTraverseSession);
+            mNativeDicTraverseSession = 0;
+        }
+    }
+
+    public void close() {
+        closeInternal();
+    }
+
+    @Override
+    protected void finalize() throws Throwable {
+        try {
+            closeInternal();
+        } finally {
+            super.finalize();
+        }
+    }
+}