DBTGattService.cxx

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/*
 * Author: Sven Gothel <sgothel@jausoft.com>
 * Copyright (c) 2020 Gothel Software e.K.
 * Copyright (c) 2020 ZAFENA AB
 *
 * 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 "jau_direct_bt_DBTGattService.h"
 
// #define VERBOSE_ON 1
#include <jau/debug.hpp>
 
#include "helper_base.hpp"
#include "helper_dbt.hpp"
 
#include "direct_bt/BTDevice.hpp"
#include "direct_bt/BTAdapter.hpp"
 
using namespace direct_bt;
using namespace jau;
 
jstring Java_jau_direct_1bt_DBTGattService_toStringImpl(JNIEnv *env, jobject obj) {
    try {
        BTGattService *nativePtr = getJavaUplinkObject<BTGattService>(env, obj);
        JavaGlobalObj::check(nativePtr->getJavaObject(), E_FILE_LINE);
        return from_string_to_jstring(env, nativePtr->toString());
    } catch(...) {
        rethrow_and_raise_java_exception(env);
    }
    return nullptr;
}
 
 
void Java_jau_direct_1bt_DBTGattService_deleteImpl(JNIEnv *env, jobject obj, jlong nativeInstance) {
    (void)obj;
    try {
        BTGattService *service = castInstance<BTGattService>(nativeInstance);
        (void)service;
        // No delete: Service instance owned by BTDevice
    } catch(...) {
        rethrow_and_raise_java_exception(env);
    }
}
 
static const std::string _characteristicClazzCtorArgs("(JLjau/direct_bt/DBTGattService;SLorg/direct_bt/GattCharPropertySet;Ljava/lang/String;SI)V");
static const std::string _gattCharPropSetClassName("org/direct_bt/GattCharPropertySet");
static const std::string _gattCharPropSetClazzCtorArgs("(B)V");
 
jobject Java_jau_direct_1bt_DBTGattService_getCharsImpl(JNIEnv *env, jobject obj) {
    try {
        BTGattService *service = getJavaUplinkObject<BTGattService>(env, obj);
        JavaGlobalObj::check(service->getJavaObject(), E_FILE_LINE);
 
        jau::darray<std::shared_ptr<BTGattChar>> & characteristics = service->characteristicList;
 
        jclass gattCharPropSetClazz;
        jmethodID gattCharPropSetClazzCtor;
        // gattCharPropSetClazzRef, gattCharPropSetClazzCtor
        {
            gattCharPropSetClazz = jau::search_class(env, _gattCharPropSetClassName.c_str());
            jau::java_exception_check_and_throw(env, E_FILE_LINE);
            if( nullptr == gattCharPropSetClazz ) {
                throw jau::InternalError("BTDevice::java_class not found: "+_gattCharPropSetClassName, E_FILE_LINE);
            }
        }
        gattCharPropSetClazzCtor = jau::search_method(env, gattCharPropSetClazz, "<init>", _gattCharPropSetClazzCtorArgs.c_str(), false);
        jau::java_exception_check_and_throw(env, E_FILE_LINE);
        if( nullptr == gattCharPropSetClazzCtor ) {
            throw jau::InternalError("GattCharPropertySet ctor not found: "+_gattCharPropSetClassName+".<init>"+_gattCharPropSetClazzCtorArgs, E_FILE_LINE);
        }
 
        /**
            DBTGattChar(final long nativeInstance, final DBTGattService service,
                        final short handle, final GattCharPropertySet properties,
                        final String value_type_uuid, final short value_handle,
                        final int clientCharacteristicsConfigIndex)
         */
        std::function<jobject(JNIEnv*, jclass, jmethodID, BTGattChar *)> ctor_char =
                [&gattCharPropSetClazz, &gattCharPropSetClazzCtor](JNIEnv *env_, jclass clazz, jmethodID clazz_ctor, BTGattChar *characteristic)->jobject {
                    // prepare adapter ctor
                    std::shared_ptr<BTGattService> _service = characteristic->getServiceChecked();
                    JavaGlobalObj::check(_service->getJavaObject(), E_FILE_LINE);
                    jobject jservice = JavaGlobalObj::GetObject(_service->getJavaObject());
 
                    jobject jGattCharPropSet = env_->NewObject(gattCharPropSetClazz, gattCharPropSetClazzCtor, (jbyte)characteristic->properties);
                    jau::java_exception_check_and_throw(env_, E_FILE_LINE);
                    JNIGlobalRef::check(jGattCharPropSet, E_FILE_LINE);
                    java_exception_check_and_throw(env_, E_FILE_LINE);
 
                    const jstring uuid = from_string_to_jstring(env_,
                            directBTJNISettings.getUnifyUUID128Bit() ? characteristic->value_type->toUUID128String() :
                                                                       characteristic->value_type->toString());
                    java_exception_check_and_throw(env_, E_FILE_LINE);
 
                    jobject jcharVal = env_->NewObject(clazz, clazz_ctor, (jlong)characteristic, jservice,
                            characteristic->handle, jGattCharPropSet,
                            uuid, characteristic->value_handle, characteristic->clientCharConfigIndex);
                    java_exception_check_and_throw(env_, E_FILE_LINE);
                    JNIGlobalRef::check(jcharVal, E_FILE_LINE);
                    std::shared_ptr<JavaAnon> jCharRef = characteristic->getJavaObject(); // GlobalRef
                    JavaGlobalObj::check(jCharRef, E_FILE_LINE);
                    env_->DeleteLocalRef(jGattCharPropSet);
                    env_->DeleteLocalRef(jcharVal);
                    return JavaGlobalObj::GetObject(jCharRef);
                };
        jobject jres = convert_vector_sharedptr_to_jarraylist<jau::darray<std::shared_ptr<BTGattChar>>, BTGattChar>(
                env, characteristics, _characteristicClazzCtorArgs.c_str(), ctor_char);
        env->DeleteLocalRef(gattCharPropSetClazz);
        return jres;
    } catch(...) {
        rethrow_and_raise_java_exception(env);
    }
    return nullptr;
}