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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/android/jni_array.h" | 5 #include "base/android/jni_array.h" |
6 | 6 |
7 #include "base/android/jni_android.h" | 7 #include "base/android/jni_android.h" |
8 #include "base/android/jni_string.h" | 8 #include "base/android/jni_string.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/stl_util.h" |
10 | 11 |
11 namespace base { | 12 namespace base { |
12 namespace android { | 13 namespace android { |
13 namespace { | 14 namespace { |
14 | 15 |
15 // As |GetArrayLength| makes no guarantees about the returned value (e.g., it | 16 // As |GetArrayLength| makes no guarantees about the returned value (e.g., it |
16 // may be -1 if |array| is not a valid Java array), provide a safe wrapper | 17 // may be -1 if |array| is not a valid Java array), provide a safe wrapper |
17 // that always returns a valid, non-negative size. | 18 // that always returns a valid, non-negative size. |
18 template <typename JavaArrayType> | 19 template <typename JavaArrayType> |
19 size_t SafeGetArrayLength(JNIEnv* env, JavaArrayType jarray) { | 20 size_t SafeGetArrayLength(JNIEnv* env, JavaArrayType jarray) { |
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46 | 47 |
47 env->SetIntArrayRegion( | 48 env->SetIntArrayRegion( |
48 int_array, 0, len, reinterpret_cast<const jint*>(ints)); | 49 int_array, 0, len, reinterpret_cast<const jint*>(ints)); |
49 CheckException(env); | 50 CheckException(env); |
50 | 51 |
51 return ScopedJavaLocalRef<jintArray>(env, int_array); | 52 return ScopedJavaLocalRef<jintArray>(env, int_array); |
52 } | 53 } |
53 | 54 |
54 ScopedJavaLocalRef<jintArray> ToJavaIntArray( | 55 ScopedJavaLocalRef<jintArray> ToJavaIntArray( |
55 JNIEnv* env, const std::vector<int>& ints) { | 56 JNIEnv* env, const std::vector<int>& ints) { |
56 return ToJavaIntArray(env, ints.begin(), ints.size()); | 57 return ToJavaIntArray(env, vector_as_array(&ints), ints.size()); |
57 } | 58 } |
58 | 59 |
59 ScopedJavaLocalRef<jlongArray> ToJavaLongArray( | 60 ScopedJavaLocalRef<jlongArray> ToJavaLongArray( |
60 JNIEnv* env, const int64* longs, size_t len) { | 61 JNIEnv* env, const int64* longs, size_t len) { |
61 jlongArray long_array = env->NewLongArray(len); | 62 jlongArray long_array = env->NewLongArray(len); |
62 CheckException(env); | 63 CheckException(env); |
63 DCHECK(long_array); | 64 DCHECK(long_array); |
64 | 65 |
65 env->SetLongArrayRegion( | 66 env->SetLongArrayRegion( |
66 long_array, 0, len, reinterpret_cast<const jlong*>(longs)); | 67 long_array, 0, len, reinterpret_cast<const jlong*>(longs)); |
67 CheckException(env); | 68 CheckException(env); |
68 | 69 |
69 return ScopedJavaLocalRef<jlongArray>(env, long_array); | 70 return ScopedJavaLocalRef<jlongArray>(env, long_array); |
70 } | 71 } |
71 | 72 |
72 // Returns a new Java long array converted from the given int64 array. | 73 // Returns a new Java long array converted from the given int64 array. |
73 BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray( | 74 BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray( |
74 JNIEnv* env, const std::vector<int64>& longs) { | 75 JNIEnv* env, const std::vector<int64>& longs) { |
75 return ToJavaLongArray(env, longs.begin(), longs.size()); | 76 return ToJavaLongArray(env, vector_as_array(&longs), longs.size()); |
76 } | 77 } |
77 | 78 |
78 ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray( | 79 ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray( |
79 JNIEnv* env, const std::vector<std::string>& v) { | 80 JNIEnv* env, const std::vector<std::string>& v) { |
80 ScopedJavaLocalRef<jclass> byte_array_clazz = GetClass(env, "[B"); | 81 ScopedJavaLocalRef<jclass> byte_array_clazz = GetClass(env, "[B"); |
81 jobjectArray joa = env->NewObjectArray(v.size(), | 82 jobjectArray joa = env->NewObjectArray(v.size(), |
82 byte_array_clazz.obj(), NULL); | 83 byte_array_clazz.obj(), NULL); |
83 CheckException(env); | 84 CheckException(env); |
84 | 85 |
85 for (size_t i = 0; i < v.size(); ++i) { | 86 for (size_t i = 0; i < v.size(); ++i) { |
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220 env->GetObjectArrayElement(array, i))); | 221 env->GetObjectArrayElement(array, i))); |
221 jsize bytes_len = env->GetArrayLength(bytes_array.obj()); | 222 jsize bytes_len = env->GetArrayLength(bytes_array.obj()); |
222 jbyte* bytes = env->GetByteArrayElements(bytes_array.obj(), NULL); | 223 jbyte* bytes = env->GetByteArrayElements(bytes_array.obj(), NULL); |
223 (*out)[i].assign(reinterpret_cast<const char*>(bytes), bytes_len); | 224 (*out)[i].assign(reinterpret_cast<const char*>(bytes), bytes_len); |
224 env->ReleaseByteArrayElements(bytes_array.obj(), bytes, JNI_ABORT); | 225 env->ReleaseByteArrayElements(bytes_array.obj(), bytes, JNI_ABORT); |
225 } | 226 } |
226 } | 227 } |
227 | 228 |
228 } // namespace android | 229 } // namespace android |
229 } // namespace base | 230 } // namespace base |
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