1/* 2 * Copyright (C) 2012 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: Session" 18 19#include "com_android_inputmethod_latin_DicTraverseSession.h" 20 21#include "defines.h" 22#include "dictionary/property/ngram_context.h" 23#include "jni.h" 24#include "jni_common.h" 25#include "suggest/core/session/dic_traverse_session.h" 26 27namespace latinime { 28class Dictionary; 29static jlong latinime_setDicTraverseSession(JNIEnv *env, jclass clazz, jstring localeJStr, 30 jlong dictSize) { 31 void *traverseSession = DicTraverseSession::getSessionInstance(env, localeJStr, dictSize); 32 return reinterpret_cast<jlong>(traverseSession); 33} 34 35static void latinime_initDicTraverseSession(JNIEnv *env, jclass clazz, jlong traverseSession, 36 jlong dictionary, jintArray previousWord, jint previousWordLength) { 37 DicTraverseSession *ts = reinterpret_cast<DicTraverseSession *>(traverseSession); 38 if (!ts) { 39 return; 40 } 41 Dictionary *dict = reinterpret_cast<Dictionary *>(dictionary); 42 if (!previousWord) { 43 NgramContext emptyNgramContext; 44 ts->init(dict, &emptyNgramContext, 0 /* suggestOptions */); 45 return; 46 } 47 int prevWord[previousWordLength]; 48 env->GetIntArrayRegion(previousWord, 0, previousWordLength, prevWord); 49 NgramContext ngramContext(prevWord, previousWordLength, false /* isStartOfSentence */); 50 ts->init(dict, &ngramContext, 0 /* suggestOptions */); 51} 52 53static void latinime_releaseDicTraverseSession(JNIEnv *env, jclass clazz, jlong traverseSession) { 54 DicTraverseSession *ts = reinterpret_cast<DicTraverseSession *>(traverseSession); 55 DicTraverseSession::releaseSessionInstance(ts); 56} 57 58static const JNINativeMethod sMethods[] = { 59 { 60 const_cast<char *>("setDicTraverseSessionNative"), 61 const_cast<char *>("(Ljava/lang/String;J)J"), 62 reinterpret_cast<void *>(latinime_setDicTraverseSession) 63 }, 64 { 65 const_cast<char *>("initDicTraverseSessionNative"), 66 const_cast<char *>("(JJ[II)V"), 67 reinterpret_cast<void *>(latinime_initDicTraverseSession) 68 }, 69 { 70 const_cast<char *>("releaseDicTraverseSessionNative"), 71 const_cast<char *>("(J)V"), 72 reinterpret_cast<void *>(latinime_releaseDicTraverseSession) 73 } 74}; 75 76int register_DicTraverseSession(JNIEnv *env) { 77 const char *const kClassPathName = "com/android/inputmethod/latin/DicTraverseSession"; 78 return registerNativeMethods(env, kClassPathName, sMethods, NELEMS(sMethods)); 79} 80} // namespace latinime 81