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jni_array.h
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jni_array.h
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// 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.
#ifndef BASE_ANDROID_JNI_ARRAY_H_
#define BASE_ANDROID_JNI_ARRAY_H_
#include <jni.h>
#include <stddef.h>
#include <stdint.h>
#include <string>
#include <vector>
#include "base/android/scoped_java_ref.h"
#include "base/strings/string16.h"
namespace base {
namespace android {
// Returns a new Java byte array converted from the given bytes array.
BASE_EXPORT ScopedJavaLocalRef<jbyteArray> ToJavaByteArray(JNIEnv* env,
const uint8_t* bytes,
size_t len);
BASE_EXPORT ScopedJavaLocalRef<jbyteArray> ToJavaByteArray(
JNIEnv* env,
const std::vector<uint8_t>& bytes);
// Returns a new Java boolean array converted from the given bool array.
BASE_EXPORT ScopedJavaLocalRef<jbooleanArray>
ToJavaBooleanArray(JNIEnv* env, const bool* bools, size_t len);
// Returns a new Java int array converted from the given int array.
BASE_EXPORT ScopedJavaLocalRef<jintArray> ToJavaIntArray(
JNIEnv* env, const int* ints, size_t len);
BASE_EXPORT ScopedJavaLocalRef<jintArray> ToJavaIntArray(
JNIEnv* env, const std::vector<int>& ints);
// Returns a new Java long array converted from the given int64_t array.
BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(JNIEnv* env,
const int64_t* longs,
size_t len);
BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
JNIEnv* env,
const std::vector<int64_t>& longs);
// Returns a new Java float array converted from the given C++ float array.
BASE_EXPORT ScopedJavaLocalRef<jfloatArray> ToJavaFloatArray(
JNIEnv* env, const float* floats, size_t len);
BASE_EXPORT ScopedJavaLocalRef<jfloatArray> ToJavaFloatArray(
JNIEnv* env,
const std::vector<float>& floats);
// Returns a array of Java byte array converted from |v|.
BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray(
JNIEnv* env, const std::vector<std::string>& v);
BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
JNIEnv* env, const std::vector<std::string>& v);
BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
JNIEnv* env, const std::vector<string16>& v);
// Converts a Java string array to a native array.
BASE_EXPORT void AppendJavaStringArrayToStringVector(
JNIEnv* env,
jobjectArray array,
std::vector<string16>* out);
BASE_EXPORT void AppendJavaStringArrayToStringVector(
JNIEnv* env,
jobjectArray array,
std::vector<std::string>* out);
// Appends the Java bytes in |bytes_array| onto the end of |out|.
BASE_EXPORT void AppendJavaByteArrayToByteVector(JNIEnv* env,
jbyteArray byte_array,
std::vector<uint8_t>* out);
// Replaces the content of |out| with the Java bytes in |bytes_array|.
BASE_EXPORT void JavaByteArrayToByteVector(JNIEnv* env,
jbyteArray byte_array,
std::vector<uint8_t>* out);
// Replaces the content of |out| with the Java booleans in |boolean_array|.
BASE_EXPORT void JavaBooleanArrayToBoolVector(JNIEnv* env,
jbooleanArray boolean_array,
std::vector<bool>* out);
// Replaces the content of |out| with the Java ints in |int_array|.
BASE_EXPORT void JavaIntArrayToIntVector(
JNIEnv* env,
jintArray int_array,
std::vector<int>* out);
// Replaces the content of |out| with the Java longs in |long_array|.
BASE_EXPORT void JavaLongArrayToInt64Vector(JNIEnv* env,
jlongArray long_array,
std::vector<int64_t>* out);
// Replaces the content of |out| with the Java longs in |long_array|.
BASE_EXPORT void JavaLongArrayToLongVector(
JNIEnv* env,
jlongArray long_array,
std::vector<jlong>* out);
// Replaces the content of |out| with the Java floats in |float_array|.
BASE_EXPORT void JavaFloatArrayToFloatVector(
JNIEnv* env,
jfloatArray float_array,
std::vector<float>* out);
// Assuming |array| is an byte[][] (array of byte arrays), replaces the
// content of |out| with the corresponding vector of strings. No UTF-8
// conversion is performed.
BASE_EXPORT void JavaArrayOfByteArrayToStringVector(
JNIEnv* env,
jobjectArray array,
std::vector<std::string>* out);
// Assuming |array| is an int[][] (array of int arrays), replaces the
// contents of |out| with the corresponding vectors of ints.
BASE_EXPORT void JavaArrayOfIntArrayToIntVector(
JNIEnv* env,
jobjectArray array,
std::vector<std::vector<int>>* out);
} // namespace android
} // namespace base
#endif // BASE_ANDROID_JNI_ARRAY_H_