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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define LOG_TAG "LatinIME: jni"
     18 
     19 #include "jni_common.h"
     20 
     21 #include "com_android_inputmethod_keyboard_ProximityInfo.h"
     22 #include "com_android_inputmethod_latin_BinaryDictionary.h"
     23 #include "com_android_inputmethod_latin_BinaryDictionaryUtils.h"
     24 #include "com_android_inputmethod_latin_DicTraverseSession.h"
     25 #include "defines.h"
     26 
     27 /*
     28  * Returns the JNI version on success, -1 on failure.
     29  */
     30 jint JNI_OnLoad(JavaVM *vm, void *reserved) {
     31     JNIEnv *env = 0;
     32 
     33     if (vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION_1_6) != JNI_OK) {
     34         AKLOGE("ERROR: GetEnv failed");
     35         return -1;
     36     }
     37     ASSERT(env);
     38     if (!env) {
     39         AKLOGE("ERROR: JNIEnv is invalid");
     40         return -1;
     41     }
     42     if (!latinime::register_BinaryDictionary(env)) {
     43         AKLOGE("ERROR: BinaryDictionary native registration failed");
     44         return -1;
     45     }
     46     if (!latinime::register_BinaryDictionaryUtils(env)) {
     47         AKLOGE("ERROR: BinaryDictionaryUtils native registration failed");
     48         return -1;
     49     }
     50     if (!latinime::register_DicTraverseSession(env)) {
     51         AKLOGE("ERROR: DicTraverseSession native registration failed");
     52         return -1;
     53     }
     54     if (!latinime::register_ProximityInfo(env)) {
     55         AKLOGE("ERROR: ProximityInfo native registration failed");
     56         return -1;
     57     }
     58     /* success -- return valid version number */
     59     return JNI_VERSION_1_6;
     60 }
     61 
     62 namespace latinime {
     63 int registerNativeMethods(JNIEnv *env, const char *const className, const JNINativeMethod *methods,
     64         const int numMethods) {
     65     jclass clazz = env->FindClass(className);
     66     if (!clazz) {
     67         AKLOGE("Native registration unable to find class '%s'", className);
     68         return JNI_FALSE;
     69     }
     70     if (env->RegisterNatives(clazz, methods, numMethods) != 0) {
     71         AKLOGE("RegisterNatives failed for '%s'", className);
     72         env->DeleteLocalRef(clazz);
     73         return JNI_FALSE;
     74     }
     75     env->DeleteLocalRef(clazz);
     76     return JNI_TRUE;
     77 }
     78 } // namespace latinime
     79