Clean up in LatinIME native code

Change-Id: I0062200a0181a491690115ac0fab8d11358e2f14

1 files changed, 79 insertions, 0 deletions

diff --git a/native/jni/jni_common.cpp b/native/jni/jni_common.cpp
new file mode 100644
index 000000000..8643f723f
--- /dev/null
+++ b/native/jni/jni_common.cpp
@@ -0,0 +1,79 @@
+/*
+**
+** Copyright 2011, 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.
+*/
+
+#define LOG_TAG "LatinIME: jni"
+
+#include "com_android_inputmethod_keyboard_ProximityInfo.h"
+#include "com_android_inputmethod_latin_BinaryDictionary.h"
+#include "jni.h"
+#include "proximity_info.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+
+using namespace latinime;
+
+/*
+ * Returns the JNI version on success, -1 on failure.
+ */
+jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+    JNIEnv* env = NULL;
+    jint result = -1;
+
+    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
+        LOGE("ERROR: GetEnv failed");
+        goto bail;
+    }
+    assert(env != NULL);
+
+    if (!register_BinaryDictionary(env)) {
+        LOGE("ERROR: BinaryDictionary native registration failed");
+        goto bail;
+    }
+
+    if (!register_ProximityInfo(env)) {
+        LOGE("ERROR: ProximityInfo native registration failed");
+        goto bail;
+    }
+
+    /* success -- return valid version number */
+    result = JNI_VERSION_1_4;
+
+bail:
+    return result;
+}
+
+namespace latinime {
+
+int registerNativeMethods(JNIEnv* env, const char* className, JNINativeMethod* methods,
+        int numMethods) {
+    jclass clazz = env->FindClass(className);
+    if (clazz == NULL) {
+        LOGE("Native registration unable to find class '%s'", className);
+        return JNI_FALSE;
+    }
+    if (env->RegisterNatives(clazz, methods, numMethods) < 0) {
+        LOGE("RegisterNatives failed for '%s'", className);
+        env->DeleteLocalRef(clazz);
+        return JNI_FALSE;
+    }
+    env->DeleteLocalRef(clazz);
+    return JNI_TRUE;
+}
+
+} // namespace latinime