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#include <nativehelper/JniConstants.h>
18#include <nativehelper/toStringArray.h>
19
20jobjectArray newStringArray(JNIEnv* env, size_t count) {
21    return env->NewObjectArray(count, JniConstants::stringClass, NULL);
22}
23
24struct ArrayCounter {
25    const char* const* strings;
26    explicit ArrayCounter(const char* const* strings) : strings(strings) {}
27    size_t operator()() {
28        size_t count = 0;
29        while (strings[count] != NULL) {
30            ++count;
31        }
32        return count;
33    }
34};
35
36struct ArrayGetter {
37    const char* const* strings;
38    explicit ArrayGetter(const char* const* strings) : strings(strings) {}
39    const char* operator()(size_t i) {
40        return strings[i];
41    }
42};
43
44jobjectArray toStringArray(JNIEnv* env, const char* const* strings) {
45    ArrayCounter counter(strings);
46    ArrayGetter getter(strings);
47    return toStringArray(env, &counter, &getter);
48}
49