1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/jni_array.h"
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/logging.h"
namespace base {
namespace android {
ScopedJavaLocalRef<jbyteArray> ToJavaByteArray(
JNIEnv* env, const uint8* bytes, size_t len) {
jbyteArray byte_array = env->NewByteArray(len);
CheckException(env);
DCHECK(byte_array);
jbyte* elements = env->GetByteArrayElements(byte_array, NULL);
memcpy(elements, bytes, len);
env->ReleaseByteArrayElements(byte_array, elements, 0);
CheckException(env);
return ScopedJavaLocalRef<jbyteArray>(env, byte_array);
}
ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray(
JNIEnv* env, const std::vector<std::string>& v) {
ScopedJavaLocalRef<jclass> byte_array_clazz = GetClass(env, "[B");
jobjectArray joa = env->NewObjectArray(v.size(),
byte_array_clazz.obj(), NULL);
CheckException(env);
for (size_t i = 0; i < v.size(); ++i) {
ScopedJavaLocalRef<jbyteArray> byte_array = ToJavaByteArray(env,
reinterpret_cast<const uint8*>(v[i].data()), v[i].length());
env->SetObjectArrayElement(joa, i, byte_array.obj());
}
return ScopedJavaLocalRef<jobjectArray>(env, joa);
}
ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
JNIEnv* env, const std::vector<std::string>& v) {
ScopedJavaLocalRef<jclass> string_clazz = GetClass(env, "java/lang/String");
jobjectArray joa = env->NewObjectArray(v.size(), string_clazz.obj(), NULL);
CheckException(env);
for (size_t i = 0; i < v.size(); ++i) {
ScopedJavaLocalRef<jstring> item = ConvertUTF8ToJavaString(env, v[i]);
env->SetObjectArrayElement(joa, i, item.obj());
}
return ScopedJavaLocalRef<jobjectArray>(env, joa);
}
ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
JNIEnv* env, const std::vector<string16>& v) {
ScopedJavaLocalRef<jclass> string_clazz = GetClass(env, "java/lang/String");
jobjectArray joa = env->NewObjectArray(v.size(), string_clazz.obj(), NULL);
CheckException(env);
for (size_t i = 0; i < v.size(); ++i) {
ScopedJavaLocalRef<jstring> item = ConvertUTF16ToJavaString(env, v[i]);
env->SetObjectArrayElement(joa, i, item.obj());
}
return ScopedJavaLocalRef<jobjectArray>(env, joa);
}
void AppendJavaStringArrayToStringVector(JNIEnv* env,
jobjectArray array,
std::vector<string16>* out) {
DCHECK(out);
if (!array)
return;
jsize len = env->GetArrayLength(array);
size_t back = out->size();
out->resize(back + len);
for (jsize i = 0; i < len; ++i) {
ScopedJavaLocalRef<jstring> str(env,
static_cast<jstring>(env->GetObjectArrayElement(array, i)));
ConvertJavaStringToUTF16(env, str.obj(), &((*out)[back + i]));
}
}
void AppendJavaStringArrayToStringVector(JNIEnv* env,
jobjectArray array,
std::vector<std::string>* out) {
DCHECK(out);
if (!array)
return;
jsize len = env->GetArrayLength(array);
size_t back = out->size();
out->resize(back + len);
for (jsize i = 0; i < len; ++i) {
ScopedJavaLocalRef<jstring> str(env,
static_cast<jstring>(env->GetObjectArrayElement(array, i)));
ConvertJavaStringToUTF8(env, str.obj(), &((*out)[back + i]));
}
}
void AppendJavaByteArrayToByteVector(JNIEnv* env,
jbyteArray byte_array,
std::vector<uint8>* out) {
DCHECK(out);
if (!byte_array)
return;
jsize len = env->GetArrayLength(byte_array);
jbyte* bytes = env->GetByteArrayElements(byte_array, NULL);
out->insert(out->end(), bytes, bytes + len);
env->ReleaseByteArrayElements(byte_array, bytes, JNI_ABORT);
}
void JavaByteArrayToByteVector(JNIEnv* env,
jbyteArray byte_array,
std::vector<uint8>* out) {
DCHECK(out);
out->clear();
AppendJavaByteArrayToByteVector(env, byte_array, out);
}
void JavaIntArrayToIntVector(JNIEnv* env,
jintArray array,
std::vector<int>* out) {
DCHECK(out);
out->clear();
jsize len = env->GetArrayLength(array);
jint* ints = env->GetIntArrayElements(array, NULL);
for (jsize i = 0; i < len; ++i) {
out->push_back(static_cast<int>(ints[i]));
}
env->ReleaseIntArrayElements(array, ints, JNI_ABORT);
}
void JavaArrayOfByteArrayToStringVector(
JNIEnv* env,
jobjectArray array,
std::vector<std::string>* out) {
DCHECK(out);
out->clear();
jsize len = env->GetArrayLength(array);
out->resize(len);
for (jsize i = 0; i < len; ++i) {
jbyteArray bytes_array = static_cast<jbyteArray>(
env->GetObjectArrayElement(array, i));
jsize bytes_len = env->GetArrayLength(bytes_array);
jbyte* bytes = env->GetByteArrayElements(bytes_array, NULL);
(*out)[i].assign(reinterpret_cast<const char*>(bytes), bytes_len);
env->ReleaseByteArrayElements(bytes_array, bytes, JNI_ABORT);
}
}
} // namespace android
} // namespace base
|
