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// Copyright 2011 Google Inc. All Rights Reserved.
// Author: michaelbai@google.com (Tao Bai)
#include "base/android/jni_array.h"
#include "base/android/auto_jobject.h"
#include "base/android/jni_android.h"
#include "base/logging.h"
namespace base {
namespace android {
jbyteArray ToJavaByteArray(JNIEnv* env,
const unsigned char* bytes,
size_t len) {
jbyteArray byte_array = env->NewByteArray(len);
if (!byte_array) {
return NULL;
}
jbyte* elements = env->GetByteArrayElements(byte_array, NULL);
DCHECK(elements);
memcpy(elements, bytes, len);
env->ReleaseByteArrayElements(byte_array, elements, 0);
CheckException(env);
return byte_array;
}
jobjectArray ToJavaArrayOfByteArray(JNIEnv* env,
const std::vector<std::string>& v) {
size_t count = v.size();
DCHECK_GT(count, 0U);
jclass byte_array_class = env->FindClass("[B");
jobjectArray joa = env->NewObjectArray(count, byte_array_class, NULL);
if (joa == NULL)
return NULL;
for (size_t i = 0; i < count; ++i) {
AutoJObject byte_array = AutoJObject::FromLocalRef(env, ToJavaByteArray(env,
reinterpret_cast<const uint8*>(v[i].data()), v[i].length()));
if (!byte_array.obj()) {
env->DeleteLocalRef(joa);
return NULL;
}
env->SetObjectArrayElement(joa, i, byte_array.obj());
}
return joa;
}
} // namespace android
} // namespace base
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