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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.
*/
#ifndef JAVA_ACCESS_HPP_
#define JAVA_ACCESS_HPP_
#include <string>
#include <memory>
namespace direct_bt {
#define JAVA_DBT_PACKAGE "direct_bt/tinyb/"
/**
* Pure virtual JavaAnonObj, hiding Java JNI details from API,
* to be implemented by JNI module.
* <p>
* One implementation is JavaGlobalObj within the JNI module,
* wrapping a JNIGlobalRef instance.
* </p>
*/
class JavaAnonObj {
public:
virtual ~JavaAnonObj() { }
virtual std::string toString() const { return "JavaAnonObj[???]"; }
/** Clears the java reference, i.e. nulling it, without deleting the global reference via JNI. */
virtual void clear() = 0;
};
/**
* Sharing the anonymous Java object (JavaAnonObj),
* i.e. exposing the Java object uplink to the C++ implementation.
*/
class JavaUplink {
private:
std::shared_ptr<JavaAnonObj> javaObjectRef;
public:
virtual std::string toString() const = 0;
virtual std::string get_java_class() const = 0;
std::string javaObjectToString() const { return nullptr == javaObjectRef ? "JavaAnonObj[null]" : javaObjectRef->toString(); }
std::shared_ptr<JavaAnonObj> getJavaObject() { return javaObjectRef; }
/** Assigns a new shared JavaAnonObj reference, replaced item might be deleted via JNI from dtor */
void setJavaObject(std::shared_ptr<JavaAnonObj> objRef) { javaObjectRef = objRef; }
/** Clears the java reference, i.e. nulling it, without deleting the global reference via JNI. */
void clearJavaObject() {
if( nullptr != javaObjectRef ) {
javaObjectRef->clear();
}
}
virtual ~JavaUplink() {
javaObjectRef = nullptr;
}
};
} /* namespace direct_bt */
#endif /* JAVA_ACCESS_HPP_ */
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