1 /*
2 * Copyright (C) 2023 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 #pragma once
18
19 #include <nativehelper/scoped_local_ref.h>
20
21 template <class T>
toJavaArray(JNIEnv * env,std::vector<T> && list,jclass clazz,jobject (* convert)(JNIEnv * env,T))22 static jobject toJavaArray(JNIEnv* env, std::vector<T>&& list, jclass clazz,
23 jobject (*convert)(JNIEnv* env, T)) {
24 jobjectArray arr = env->NewObjectArray(list.size(), clazz, nullptr);
25 LOG_ALWAYS_FATAL_IF(arr == nullptr);
26 for (size_t i = 0; i < list.size(); i++) {
27 T& t = list[i];
28 ScopedLocalRef<jobject> javaObj(env, convert(env, std::move(t)));
29 env->SetObjectArrayElement(arr, i, javaObj.get());
30 }
31 return arr;
32 }