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https://github.com/pocoproject/poco.git
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new trunk (base for 1.5)
windows build only
This commit is contained in:
Aleksandar Fabijanic
353
PageCompiler/src/CodeWriter.cpp
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353
PageCompiler/src/CodeWriter.cpp
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//
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// CodeWriter.cpp
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//
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// $Id: //poco/1.4/PageCompiler/src/CodeWriter.cpp#2 $
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//
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// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "CodeWriter.h"
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#include "Page.h"
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#include "Poco/Path.h"
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#include "Poco/StringTokenizer.h"
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using Poco::Path;
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using Poco::StringTokenizer;
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CodeWriter::CodeWriter(const Page& page, const std::string& clazz):
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_page(page),
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_class(clazz)
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{
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}
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CodeWriter::~CodeWriter()
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{
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}
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void CodeWriter::writeHeader(std::ostream& ostr, const std::string& headerFileName)
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{
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beginGuard(ostr, headerFileName);
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writeHeaderIncludes(ostr);
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ostr << "\n\n";
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std::string decls(_page.headerDecls().str());
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if (!decls.empty())
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{
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ostr << decls << "\n\n";
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}
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beginNamespace(ostr);
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writeHandlerClass(ostr);
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writeFactoryClass(ostr);
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endNamespace(ostr);
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endGuard(ostr, headerFileName);
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}
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void CodeWriter::writeImpl(std::ostream& ostr, const std::string& headerFileName)
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{
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ostr << "#include \"" << headerFileName << "\"\n";
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writeImplIncludes(ostr);
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if (_page.getBool("page.buffered", false))
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{
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ostr << "#include \"Poco/StreamCopier.h\"\n";
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ostr << "#include <sstream>\n";
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}
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ostr << "\n\n";
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std::string decls(_page.implDecls().str());
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if (!decls.empty())
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{
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ostr << decls << "\n\n";
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}
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beginNamespace(ostr);
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writeConstructor(ostr);
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writeHandler(ostr);
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writeFactory(ostr);
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endNamespace(ostr);
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writeManifest(ostr);
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}
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void CodeWriter::beginNamespace(std::ostream& ostr)
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{
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std::string ns = _page.get("page.namespace", "");
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if (!ns.empty())
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{
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StringTokenizer tok(ns, ":", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
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for (StringTokenizer::Iterator it = tok.begin(); it != tok.end(); ++it)
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{
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ostr << "namespace " << *it << " {\n";
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}
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ostr << "\n\n";
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}
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}
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void CodeWriter::endNamespace(std::ostream& ostr)
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{
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std::string ns = _page.get("page.namespace", "");
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if (!ns.empty())
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{
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ostr << "\n\n";
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StringTokenizer tok(ns, ":", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
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for (StringTokenizer::Iterator it = tok.begin(); it != tok.end(); ++it)
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{
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ostr << "} ";
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}
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ostr << "// namespace " << ns << "\n";
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}
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}
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void CodeWriter::beginGuard(std::ostream& ostr, const std::string& headerFileName)
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{
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Path p(headerFileName);
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std::string guard(p.getBaseName());
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guard += "_INCLUDED";
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ostr << "#ifndef " << guard << "\n";
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ostr << "#define " << guard << "\n";
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ostr << "\n\n";
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}
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void CodeWriter::endGuard(std::ostream& ostr, const std::string& headerFileName)
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{
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Path p(headerFileName);
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std::string guard(p.getBaseName());
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guard += "_INCLUDED";
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ostr << "\n\n";
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ostr << "#endif // " << guard << "\n";
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}
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void CodeWriter::handlerClass(std::ostream& ostr, const std::string& base, const std::string& ctorArg)
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{
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std::string exprt(_page.get("page.export", ""));
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if (!exprt.empty()) exprt += ' ';
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ostr << "class " << exprt << _class << ": public " << base << "\n";
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ostr << "{\n";
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ostr << "public:\n";
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if (!ctorArg.empty())
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{
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ostr << "\t" << _class << "(" << ctorArg << ");\n";
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ostr << "\n";
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}
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ostr << "\tvoid handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response);\n";
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writeHandlerMembers(ostr);
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ostr << "};\n";
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}
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void CodeWriter::factoryClass(std::ostream& ostr, const std::string& base)
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{
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ostr << "class " << _class << "Factory: public " << base << "\n";
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ostr << "{\n";
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ostr << "public:\n";
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ostr << "\tPoco::Net::HTTPRequestHandler* createRequestHandler(const Poco::Net::HTTPServerRequest& request);\n";
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ostr << "};\n";
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}
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void CodeWriter::factoryImpl(std::ostream& ostr, const std::string& arg)
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{
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ostr << "Poco::Net::HTTPRequestHandler* " << _class << "Factory::createRequestHandler(const Poco::Net::HTTPServerRequest& request)\n";
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ostr << "{\n";
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ostr << "\treturn new " << _class << "(" << arg << ");\n";
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ostr << "}\n";
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}
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void CodeWriter::writeHeaderIncludes(std::ostream& ostr)
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{
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ostr << "#include \"Poco/Net/HTTPRequestHandler.h\"\n";
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}
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void CodeWriter::writeHandlerClass(std::ostream& ostr)
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{
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std::string base(_page.get("page.baseClass", "Poco::Net::HTTPRequestHandler"));
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std::string ctorArg;
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ctorArg = _page.get("page.context", _page.get("page.ctorArg", ""));
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handlerClass(ostr, base, ctorArg);
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}
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void CodeWriter::writeHandlerMembers(std::ostream& ostr)
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{
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std::string context(_page.get("page.context", ""));
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if (!context.empty())
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{
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ostr << "\n";
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ostr << "protected:\n";
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ostr << "\t" << context << " context() const\n";
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ostr << "\t{\n";
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ostr << "\t\treturn _context;\n";
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ostr << "\t}\n";
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ostr << "\n";
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ostr << "private:\n";
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ostr << "\t" << context << " _context;\n";
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}
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}
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void CodeWriter::writeFactoryClass(std::ostream& ostr)
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{
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}
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void CodeWriter::writeImplIncludes(std::ostream& ostr)
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{
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ostr << "#include \"Poco/Net/HTTPServerRequest.h\"\n";
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ostr << "#include \"Poco/Net/HTTPServerResponse.h\"\n";
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ostr << "#include \"Poco/Net/HTMLForm.h\"\n";
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}
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void CodeWriter::writeConstructor(std::ostream& ostr)
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{
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std::string base(_page.get("page.baseClass", "Poco::Net::HTTPRequestHandler"));
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std::string context(_page.get("page.context", ""));
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std::string ctorArg(_page.get("page.ctorArg", ""));
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if (!context.empty())
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{
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ostr << _class << "::" << _class << "(" << context << " context):\n";
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ostr << "\t_context(context)\n";
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ostr << "{\n}\n";
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ostr << "\n\n";
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}
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else if (!ctorArg.empty())
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{
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ostr << _class << "::" << _class << "(" << ctorArg << " arg):\n";
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ostr << "\t" << base << "(arg)\n";
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ostr << "{\n}\n";
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ostr << "\n\n";
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}
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}
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void CodeWriter::writeHandler(std::ostream& ostr)
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{
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ostr << "void " << _class << "::handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response)\n";
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ostr << "{\n";
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writeResponse(ostr);
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if (_page.has("page.precondition"))
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{
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ostr << "\tif (!(" << _page.get("page.precondition") << ")) return;\n\n";
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}
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writeSession(ostr);
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writeForm(ostr);
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ostr << _page.preHandler().str();
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writeContent(ostr);
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ostr << "}\n";
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}
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void CodeWriter::writeFactory(std::ostream& ostr)
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{
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}
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void CodeWriter::writeManifest(std::ostream& ostr)
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{
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}
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void CodeWriter::writeSession(std::ostream& ostr)
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{
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}
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void CodeWriter::writeForm(std::ostream& ostr)
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{
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if (_page.getBool("page.form", true))
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{
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std::string partHandler(_page.get("page.formPartHandler", ""));
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if (!partHandler.empty())
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{
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ostr << "\t" << partHandler << " cpspPartHandler(*this);\n";
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}
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ostr << "\tPoco::Net::HTMLForm form(request, request.stream()";
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if (!partHandler.empty())
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{
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ostr << ", cpspPartHandler";
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}
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ostr << ");\n";
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}
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}
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void CodeWriter::writeResponse(std::ostream& ostr)
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{
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std::string contentType(_page.get("page.contentType", "text/html"));
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std::string contentLang(_page.get("page.contentLanguage", ""));
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bool buffered(_page.getBool("page.buffered", false));
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bool chunked(_page.getBool("page.chunked", !buffered));
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if (chunked)
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{
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ostr << "\tresponse.setChunkedTransferEncoding(true);\n";
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}
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ostr << "\tresponse.setContentType(\"" << contentType << "\");\n";
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if (!contentLang.empty())
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{
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ostr << "\tif (request.has(\"Accept-Language\"))\n"
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<< "\t\tresponse.set(\"Content-Language\", \"" << contentLang << "\");\n";
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}
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ostr << "\n";
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}
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void CodeWriter::writeContent(std::ostream& ostr)
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{
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bool buffered(_page.getBool("page.buffered", false));
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bool chunked(_page.getBool("page.chunked", !buffered));
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if (buffered)
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{
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ostr << "\tstd::stringstream responseStream;\n";
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ostr << _page.handler().str();
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if (!chunked)
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{
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ostr << "\tresponse.setContentLength(static_cast<int>(responseStream.tellp()));\n";
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}
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ostr << "\tPoco::StreamCopier::copyStream(responseStream, response.send());\n";
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}
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else
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{
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ostr << "\tstd::ostream& responseStream = response.send();\n";
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ostr << _page.handler().str();
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}
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}
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