3 files changed, 114 insertions, 2 deletions
diff --git a/native/jni/src/utils/autocorrection_threshold_utils.cpp b/native/jni/src/utils/autocorrection_threshold_utils.cpp
index 3406e0f8e..1f8ee0814 100644
--- a/native/jni/src/utils/autocorrection_threshold_utils.cpp
+++ b/native/jni/src/utils/autocorrection_threshold_utils.cpp
@@ -83,9 +83,12 @@ const int AutocorrectionThresholdUtils::FULL_WORD_MULTIPLIER = 2;
         return 0.0f;
     }
 
+    if (score <= 0 || distance >= afterLength) {
+        // normalizedScore must be 0.0f (the minimum value) if the score is less than or equal to 0,
+        // or if the edit distance is larger than or equal to afterLength.
+        return 0.0f;
+    }
     // add a weight based on edit distance.
-    // distance <= max(afterLength, beforeLength) == afterLength,
-    // so, 0 <= distance / afterLength <= 1
     const float weight = 1.0f - static_cast<float>(distance) / static_cast<float>(afterLength);
 
     // TODO: Revise the following logic thoroughly by referring to...
diff --git a/native/jni/src/utils/log_utils.cpp b/native/jni/src/utils/log_utils.cpp
new file mode 100644
index 000000000..5ab2b2862
--- /dev/null
+++ b/native/jni/src/utils/log_utils.cpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013, 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.
+ */
+
+#include "log_utils.h"
+
+#include <cstdio>
+#include <stdarg.h>
+
+#include "defines.h"
+
+namespace latinime {
+    /* static */ void LogUtils::logToJava(JNIEnv *const env, const char *const format, ...) {
+        static const char *TAG = "LatinIME:LogUtils";
+        const jclass androidUtilLogClass = env->FindClass("android/util/Log");
+        if (!androidUtilLogClass) {
+            // If we can't find the class, we are probably in off-device testing, and
+            // it's expected. Regardless, logging is not essential to functionality, so
+            // we should just return. However, FindClass has thrown an exception behind
+            // our back and there is no way to prevent it from doing that, so we clear
+            // the exception before we return.
+            env->ExceptionClear();
+            return;
+        }
+        const jmethodID logDotIMethodId = env->GetStaticMethodID(androidUtilLogClass, "i",
+                "(Ljava/lang/String;Ljava/lang/String;)I");
+        if (!logDotIMethodId) {
+            env->ExceptionClear();
+            if (androidUtilLogClass) env->DeleteLocalRef(androidUtilLogClass);
+            return;
+        }
+        const jstring javaTag = env->NewStringUTF(TAG);
+
+        static const int DEFAULT_LINE_SIZE = 128;
+        char fixedSizeCString[DEFAULT_LINE_SIZE];
+        va_list argList;
+        va_start(argList, format);
+        // Get the necessary size. Add 1 for the 0 terminator.
+        const int size = vsnprintf(fixedSizeCString, DEFAULT_LINE_SIZE, format, argList) + 1;
+        va_end(argList);
+
+        jstring javaString;
+        if (size <= DEFAULT_LINE_SIZE) {
+            // The buffer was large enough.
+            javaString = env->NewStringUTF(fixedSizeCString);
+        } else {
+            // The buffer was not large enough.
+            va_start(argList, format);
+            char variableSizeCString[size];
+            vsnprintf(variableSizeCString, size, format, argList);
+            va_end(argList);
+            javaString = env->NewStringUTF(variableSizeCString);
+        }
+
+        env->CallStaticIntMethod(androidUtilLogClass, logDotIMethodId, javaTag, javaString);
+        if (javaString) env->DeleteLocalRef(javaString);
+        if (javaTag) env->DeleteLocalRef(javaTag);
+        if (androidUtilLogClass) env->DeleteLocalRef(androidUtilLogClass);
+    }
+}
diff --git a/native/jni/src/utils/log_utils.h b/native/jni/src/utils/log_utils.h
new file mode 100644
index 000000000..6ac16d91a
--- /dev/null
+++ b/native/jni/src/utils/log_utils.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef LATINIME_LOG_UTILS_H
+#define LATINIME_LOG_UTILS_H
+
+#include "defines.h"
+#include "jni.h"
+
+namespace latinime {
+
+class LogUtils {
+ public:
+    static void logToJava(JNIEnv *const env, const char *const format, ...)
+#ifdef __GNUC__
+        __attribute__ ((format (printf, 2, 3)))
+#endif // __GNUC__
+        ;
+
+ private:
+    DISALLOW_COPY_AND_ASSIGN(LogUtils);
+};
+} // namespace latinime
+#endif // LATINIME_LOG_UTILS_H