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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* $Rev$ $Date$ */
#ifndef tuscany_sca_python_pythonservicewrapper_h
#define tuscany_sca_python_pythonservicewrapper_h
#include "tuscany/sca/python/export.h"
#include "tuscany/sca/core/ServiceWrapper.h"
#include "tuscany/sca/core/Operation.h"
#include "tuscany/sca/model/Component.h"
#include "tuscany/sca/model/Interface.h"
#include "tuscany/sca/python/model/PythonImplementation.h"
using namespace tuscany::sca::model;
// undefine _DEBUG so Python does not need it's deebug dll
#ifdef _DEBUG
#undef _DEBUG
#define _SCA_PYTHON_DEBUG
#endif
#include <Python.h>
#ifdef _SCA_PYTHON_DEBUG
#define _DEBUG
#endif
namespace tuscany
{
namespace sca
{
namespace python
{
class PythonInterface;
/**
* Wraps the service on a component implementation.
* This abstract class is extended by generated code which provides
* the implementation of some of the methods.
* An instance of this class wraps the actual component implementation which
* has been written by a developer of an SCA application.
*/
class PythonServiceWrapper : public ServiceWrapper
{
public:
/**
* Constructor.
* @param target The component service to which this wrapper refers.
*/
PythonServiceWrapper(Service* service);
/**
* Destructor.
*/
virtual ~PythonServiceWrapper();
/**
* All business method calls to the target component go through the invoke method.
* @param operation The details of the method, paramaters and return value for the
* business method to be called on the target component.
*/
virtual void invoke(Operation& operation);
protected:
/**
* Return the current instance of the python class.
* @return A pointer to an instance of the python class.
*/
virtual PyObject* getInstance();
/**
* Creates a new instance of the python class.
* @return A pointer to a new instance of the python class.
*/
virtual PyObject* newInstance();
/**
* Indicates that the current instance of the python module or class
* has been finished with.
*/
virtual void releaseInstance();
private:
/**
* Holds a class instance if a classname is provided.
* Will be constructed each time if scope is set to STATELESS
*/
PyObject* pythonClassInstance;
/**
* Holds the module
*/
PyObject* pythonModule;
/**
* Adds references to the provided implementation module or class instance
*/
void addReferences(PyObject* module);
/**
* Adds properties to the provided implementation module or class instance
*/
void addProperties(PyObject* module);
/**
* The component to which this wrapper refers.
*/
Component* component;
/**
* The component implementation
*/
PythonImplementation* implementation;
};
} // End namespace python
} // End namespace sca
} // End namespace tuscany
#endif // tuscany_sca_python_pythonservicewrapper_h
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