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Add MongoDB classes
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fbraem
175
MongoDB/src/Document.cpp
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175
MongoDB/src/Document.cpp
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//
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// Document.cpp
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//
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// $Id$
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//
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// Library: MongoDB
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// Package: MongoDB
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// Module: Document
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//
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// Implementation of the Document class.
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//
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// Copyright (c) 2012, 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 <sstream>
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#include "Poco/MongoDB/Document.h"
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#include "Poco/MongoDB/Binary.h"
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#include "Poco/MongoDB/ObjectId.h"
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#include "Poco/MongoDB/Array.h"
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namespace Poco
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{
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namespace MongoDB
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{
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Document::Document()
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{
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}
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Document::~Document()
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{
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}
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void Document::read(BinaryReader& reader)
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{
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int size;
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reader >> size;
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unsigned char type;
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reader >> type;
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while( type != '\0' )
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{
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Element::Ptr element;
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std::string name = BSONReader(reader).readCString();
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switch(type)
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{
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case ElementTraits<double>::TypeId:
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element = new ConcreteElement<double>(name, 0);
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break;
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case ElementTraits<Int32>::TypeId:
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element = new ConcreteElement<Int32>(name, 0);
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break;
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case ElementTraits<std::string>::TypeId:
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element = new ConcreteElement<std::string>(name, "");
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break;
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case ElementTraits<Document::Ptr>::TypeId:
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element = new ConcreteElement<Document::Ptr>(name, new Document());
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break;
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case ElementTraits<Array::Ptr>::TypeId:
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element = new ConcreteElement<Array::Ptr>(name, new Array());
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break;
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case ElementTraits<Binary::Ptr>::TypeId:
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element = new ConcreteElement<Binary::Ptr>(name, new Binary());
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break;
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case ElementTraits<ObjectId::Ptr>::TypeId:
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element = new ConcreteElement<ObjectId::Ptr>(name, new ObjectId());
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break;
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case ElementTraits<bool>::TypeId:
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element = new ConcreteElement<bool>(name, false);
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break;
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case ElementTraits<Poco::Timestamp>::TypeId:
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element = new ConcreteElement<Poco::Timestamp>(name, Poco::Timestamp());
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break;
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case ElementTraits<NullValue>::TypeId:
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element = new ConcreteElement<NullValue>(name, NullValue(0));
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break;
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case ElementTraits<RegularExpression::Ptr>::TypeId:
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element = new ConcreteElement<RegularExpression::Ptr>(name, new RegularExpression());
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break;
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case ElementTraits<JavaScriptCode::Ptr>::TypeId:
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element = new ConcreteElement<JavaScriptCode::Ptr>(name, new JavaScriptCode());
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break;
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case ElementTraits<Int64>::TypeId:
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element = new ConcreteElement<Int64>(name, 0);
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break;
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default:
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{
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std::stringstream ss;
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ss << "Element " << name << " contains an unsupported type " << std::hex << (int) type;
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throw Poco::NotImplementedException(ss.str());
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}
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//TODO: x0F -> JavaScript code with scope
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// xFF -> Min Key
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// x7F -> Max Key
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}
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element->read(reader);
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_elements.insert(element);
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reader >> type;
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}
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}
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std::string Document::toString() const
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{
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std::ostringstream oss;
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for(ElementSet::iterator it = _elements.begin(); it != _elements.end(); ++it)
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{
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oss << (*it)->name() << " ";
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}
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return oss.str();
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}
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void Document::write(BinaryWriter& writer)
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{
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if ( _elements.empty() )
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{
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writer << 5;
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}
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else
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{
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std::stringstream sstream;
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Poco::BinaryWriter tempWriter(sstream);
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for(ElementSet::iterator it = _elements.begin(); it != _elements.end(); ++it)
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{
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tempWriter << (unsigned char) (*it)->type();
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BSONWriter(tempWriter).writeCString((*it)->name());
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Element::Ptr element = *it;
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element->write(tempWriter);
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}
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tempWriter.flush();
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Poco::Int32 len = 5 + sstream.tellp(); /* 5 = sizeof(len) + 0-byte */
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writer << len;
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writer.writeRaw(sstream.str());
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}
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writer << '\0';
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}
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void Document::addElement(Element::Ptr element)
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{
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_elements.insert(element);
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}
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}} // Namespace Poco::MongoDB
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