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/*
* Author: Andrei Vasiliu <andrei.vasiliu@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <jni.h>
#include <memory>
#include <stdexcept>
#include <vector>
#include "helper.hpp"
jfieldID getInstanceField(JNIEnv *env, jobject obj)
{
jclass clazz = env->GetObjectClass(obj);
// J == long
return env->GetFieldID(clazz, "nativeInstance", "J");
}
jclass search_class(JNIEnv *env, tinyb::BluetoothObject &object)
{
return search_class(env, object.get_java_class().c_str());
}
jclass search_class(JNIEnv *env, const char *clazz_name)
{
jclass clazz = env->FindClass(clazz_name);
if (!clazz)
{
std::string error = "no class found: "; error += clazz_name;
throw std::runtime_error(error);
}
return clazz;
}
jmethodID search_method(JNIEnv *env, jclass clazz, const char *method_name,
const char *prototype, bool is_static)
{
jmethodID method;
if (is_static)
{
method = env->GetStaticMethodID(clazz, method_name, prototype);
}
else
{
method = env->GetMethodID(clazz, method_name, prototype);
}
if (!method)
{
throw std::runtime_error("no method found\n");
}
return method;
}
jfieldID search_field(JNIEnv *env, jclass clazz, const char *field_name,
const char *type, bool is_static)
{
jfieldID field;
if (is_static)
{
field = env->GetStaticFieldID(clazz, field_name, type);
}
else
{
field = env->GetFieldID(clazz, field_name, type);
}
if (!field)
{
throw std::runtime_error("no method found\n");
}
return field;
}
bool from_jboolean_to_bool(jboolean val)
{
bool result;
if (val == JNI_TRUE)
{
result = true;
}
else
{
if (val == JNI_FALSE)
{
result = false;
}
else
{
throw std::invalid_argument("the jboolean value is not true/false\n");
}
}
return result;
}
std::string from_jstring_to_string(JNIEnv *env, jstring str)
{
jboolean is_copy = JNI_TRUE;
const char *str_chars = (char *)env->GetStringUTFChars(str, &is_copy);
if (!str_chars)
{
throw std::runtime_error("GetStringUTFChars returned NULL\n");
}
const std::string string_to_write = std::string(str_chars);
env->ReleaseStringUTFChars(str, str_chars);
return string_to_write;
}
tinyb::BluetoothType from_int_to_btype(int type)
{
tinyb::BluetoothType result = tinyb::BluetoothType::NONE;
switch (type)
{
case 0:
result = tinyb::BluetoothType::NONE;
break;
case 1:
result = tinyb::BluetoothType::ADAPTER;
break;
case 2:
result = tinyb::BluetoothType::DEVICE;
break;
case 3:
result = tinyb::BluetoothType::GATT_SERVICE;
break;
case 4:
result = tinyb::BluetoothType::GATT_CHARACTERISTIC;
break;
case 5:
result = tinyb::BluetoothType::GATT_CHARACTERISTIC;
break;
default:
result = tinyb::BluetoothType::NONE;
break;
}
return result;
}
jobject get_bluetooth_type(JNIEnv *env, const char *field_name)
{
jclass b_type_enum = search_class(env, JAVA_PACKAGE "/BluetoothType");
jfieldID b_type_field = search_field(env, b_type_enum, field_name, "l", true);
jobject result = env->GetStaticObjectField(b_type_enum, b_type_field);
return result;
}
jobject get_new_arraylist(JNIEnv *env, unsigned int size, jmethodID *add)
{
jclass arraylist_class = search_class(env, "Ljava/util/ArrayList;");
jmethodID arraylist_ctor = search_method(env, arraylist_class, "<init>", "(I)V", false);
jobject result = env->NewObject(arraylist_class, arraylist_ctor, size);
if (!result)
{
throw std::runtime_error("cannot create instance of class\n");
}
*add = search_method(env, arraylist_class, "add", "(Ljava/lang/Object;)Z", false);
return result;
}
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