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      1 /*
      2 **
      3 ** Copyright 2011, The Android Open Source Project
      4 **
      5 ** Licensed under the Apache License, Version 2.0 (the "License");
      6 ** you may not use this file except in compliance with the License.
      7 ** You may obtain a copy of the License at
      8 **
      9 **     http://www.apache.org/licenses/LICENSE-2.0
     10 **
     11 ** Unless required by applicable law or agreed to in writing, software
     12 ** distributed under the License is distributed on an "AS IS" BASIS,
     13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 ** See the License for the specific language governing permissions and
     15 ** limitations under the License.
     16 */
     17 
     18 #define LOG_TAG "LatinIME: jni"
     19 
     20 #include "com_android_inputmethod_keyboard_ProximityInfo.h"
     21 #include "com_android_inputmethod_latin_BinaryDictionary.h"
     22 #include "defines.h"
     23 #include "jni.h"
     24 #include "proximity_info.h"
     25 
     26 #include <assert.h>
     27 #include <errno.h>
     28 #include <stdio.h>
     29 
     30 using namespace latinime;
     31 
     32 /*
     33  * Returns the JNI version on success, -1 on failure.
     34  */
     35 jint JNI_OnLoad(JavaVM* vm, void* reserved) {
     36     JNIEnv* env = 0;
     37     jint result = -1;
     38 
     39     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
     40         AKLOGE("ERROR: GetEnv failed");
     41         goto bail;
     42     }
     43     assert(env != 0);
     44 
     45     if (!register_BinaryDictionary(env)) {
     46         AKLOGE("ERROR: BinaryDictionary native registration failed");
     47         goto bail;
     48     }
     49 
     50     if (!register_ProximityInfo(env)) {
     51         AKLOGE("ERROR: ProximityInfo native registration failed");
     52         goto bail;
     53     }
     54 
     55     /* success -- return valid version number */
     56     result = JNI_VERSION_1_4;
     57 
     58 bail:
     59     return result;
     60 }
     61 
     62 namespace latinime {
     63 
     64 int registerNativeMethods(JNIEnv* env, const char* className, JNINativeMethod* methods,
     65         int numMethods) {
     66     jclass clazz = env->FindClass(className);
     67     if (clazz == 0) {
     68         AKLOGE("Native registration unable to find class '%s'", className);
     69         return JNI_FALSE;
     70     }
     71     if (env->RegisterNatives(clazz, methods, numMethods) < 0) {
     72         AKLOGE("RegisterNatives failed for '%s'", className);
     73         env->DeleteLocalRef(clazz);
     74         return JNI_FALSE;
     75     }
     76     env->DeleteLocalRef(clazz);
     77     return JNI_TRUE;
     78 }
     79 
     80 } // namespace latinime
     81