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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_modcpp_hpp
#define tuscany_modcpp_hpp
/**
* Evaluation functions used by mod-eval to evaluate implementation.cpp
* component implementations.
*/
#include <string>
#include <iostream>
#include <fstream>
#include "function.hpp"
#include "list.hpp"
#include "value.hpp"
#include "debug.hpp"
#include "monad.hpp"
#include "dynlib.hpp"
#include "../eval/driver.hpp"
#include "../http/httpd.hpp"
namespace tuscany {
namespace server {
namespace modeval {
namespace cpp {
/**
* Evaluate a C++ component implementation function.
*/
struct evalImplementation {
const lib ilib;
const lambda<value(const list<value>&)> impl;
const list<value> px;
evalImplementation(const lib& ilib, const lambda<value(const list<value>&)>& impl, const list<value>& px) : ilib(ilib), impl(impl), px(px) {
}
const value operator()(const list<value>& params) const {
debug(params, "modeval::cpp::evalImplementation::input");
const value val = impl(append(params, px));
debug(val, "modeval::cpp::evalImplementation::result");
return val;
}
};
/**
* Read a C++ component implementation.
*/
const failable<lambda<value(const list<value>&)>, std::string> readImplementation(const std::string path, const list<value>& px) {
const failable<lib, std::string> ilib(dynlib(path + dynlibExt));
if (!hasContent(ilib))
return mkfailure<lambda<value(const list<value>&)>, std::string>(reason(ilib));
const failable<lambda<value(const list<value>&)>, std::string> impl(dynlambda<value(const list<value>&)>("eval", content(ilib)));
if (!hasContent(impl))
return impl;
return lambda<value(const list<value>&)>(evalImplementation(content(ilib), content(impl), px));
}
}
}
}
}
#endif /* tuscany_modcpp_hpp */
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