1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef BASE_ANDROID_JNI_ARRAY_H_
6#define BASE_ANDROID_JNI_ARRAY_H_
7
8#include <jni.h>
9#include <string>
10#include <vector>
11
12#include "base/android/scoped_java_ref.h"
13#include "base/basictypes.h"
14#include "base/strings/string16.h"
15
16namespace base {
17namespace android {
18
19// Returns a new Java byte array converted from the given bytes array.
20BASE_EXPORT ScopedJavaLocalRef<jbyteArray> ToJavaByteArray(
21    JNIEnv* env, const uint8* bytes, size_t len);
22
23// Returns a new Java int array converted from the given int array.
24BASE_EXPORT ScopedJavaLocalRef<jintArray> ToJavaIntArray(
25    JNIEnv* env, const int* ints, size_t len);
26
27BASE_EXPORT ScopedJavaLocalRef<jintArray> ToJavaIntArray(
28    JNIEnv* env, const std::vector<int>& ints);
29
30// Returns a new Java long array converted from the given int64 array.
31BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
32    JNIEnv* env, const int64* longs, size_t len);
33
34BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
35    JNIEnv* env, const std::vector<int64>& longs);
36
37// Returns a array of Java byte array converted from |v|.
38BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray(
39    JNIEnv* env, const std::vector<std::string>& v);
40
41BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
42    JNIEnv* env,  const std::vector<std::string>& v);
43
44BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
45    JNIEnv* env,  const std::vector<string16>& v);
46
47// Converts a Java string array to a native array.
48BASE_EXPORT void AppendJavaStringArrayToStringVector(
49    JNIEnv* env,
50    jobjectArray array,
51    std::vector<string16>* out);
52
53BASE_EXPORT void AppendJavaStringArrayToStringVector(
54    JNIEnv* env,
55    jobjectArray array,
56    std::vector<std::string>* out);
57
58// Appends the Java bytes in |bytes_array| onto the end of |out|.
59BASE_EXPORT void AppendJavaByteArrayToByteVector(
60    JNIEnv* env,
61    jbyteArray byte_array,
62    std::vector<uint8>* out);
63
64// Replaces the content of |out| with the Java bytes in |bytes_array|.
65BASE_EXPORT void JavaByteArrayToByteVector(
66    JNIEnv* env,
67    jbyteArray byte_array,
68    std::vector<uint8>* out);
69
70// Replaces the content of |out| with the Java ints in |int_array|.
71BASE_EXPORT void JavaIntArrayToIntVector(
72    JNIEnv* env,
73    jintArray int_array,
74    std::vector<int>* out);
75
76// Replaces the content of |out| with the Java floats in |float_array|.
77BASE_EXPORT void JavaFloatArrayToFloatVector(
78    JNIEnv* env,
79    jfloatArray float_array,
80    std::vector<float>* out);
81
82// Assuming |array| is an byte[][] (array of byte arrays), replaces the
83// content of |out| with the corresponding vector of strings. No UTF-8
84// conversion is performed.
85BASE_EXPORT void JavaArrayOfByteArrayToStringVector(
86    JNIEnv* env,
87    jobjectArray array,
88    std::vector<std::string>* out);
89
90}  // namespace android
91}  // namespace base
92
93#endif  // BASE_ANDROID_JNI_ARRAY_H_
94