base/android/jni_array.h

   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/string16.h"
  15
  16 namespace base {
  17 namespace android {
  18
  19 // Returns a new Java byte array converted from the given bytes array.
  20 BASE_EXPORT ScopedJavaLocalRef<jbyteArray> ToJavaByteArray(
  21     JNIEnv* env, const uint8* bytes, size_t len);
  22
  23 // Returns a new Java long array converted from the given int64 array.
  24 BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
  25     JNIEnv* env, const int64* longs, size_t len);
  26
  27 BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
  28     JNIEnv* env, const std::vector<int64>& longs);
  29
  30 // Returns a array of Java byte array converted from |v|.
  31 BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray(
  32     JNIEnv* env, const std::vector<std::string>& v);
  33
  34 BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
  35     JNIEnv* env,  const std::vector<std::string>& v);
  36
  37 BASE_EXPORT ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfStrings(
  38     JNIEnv* env,  const std::vector<string16>& v);
  39
  40 // Converts a Java string array to a native array.
  41 BASE_EXPORT void AppendJavaStringArrayToStringVector(
  42     JNIEnv* env,
  43     jobjectArray array,
  44     std::vector<string16>* out);
  45
  46 BASE_EXPORT void AppendJavaStringArrayToStringVector(
  47     JNIEnv* env,
  48     jobjectArray array,
  49     std::vector<std::string>* out);
  50
  51 // Appends the Java bytes in |bytes_array| onto the end of |out|.
  52 BASE_EXPORT void AppendJavaByteArrayToByteVector(
  53     JNIEnv* env,
  54     jbyteArray byte_array,
  55     std::vector<uint8>* out);
  56
  57 // Replaces the content of |out| with the Java bytes in |bytes_array|.
  58 BASE_EXPORT void JavaByteArrayToByteVector(
  59     JNIEnv* env,
  60     jbyteArray byte_array,
  61     std::vector<uint8>* out);
  62
  63 // Replaces the content of |out| with the Java ints in |int_array|.
  64 BASE_EXPORT void JavaIntArrayToIntVector(
  65     JNIEnv* env,
  66     jintArray int_array,
  67     std::vector<int>* out);
  68
  69 // Assuming |array| is an byte[][] (array of byte arrays), replaces the
  70 // content of |out| with the corresponding vector of strings. No UTF-8
  71 // conversion is performed.
  72 BASE_EXPORT void JavaArrayOfByteArrayToStringVector(
  73     JNIEnv* env,
  74     jobjectArray array,
  75     std::vector<std::string>* out);
  76
  77 }  // namespace android
  78 }  // namespace base
  79
  80 #endif  // BASE_ANDROID_JNI_ARRAY_H_