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231 lines (201 loc) · 5.55 KB
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//
// Document.cpp
//
// $Id$
//
// Library: MongoDB
// Package: MongoDB
// Module: Document
//
// Implementation of the Document class.
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// 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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include <sstream>
#include "Poco/MongoDB/Document.h"
#include "Poco/MongoDB/Binary.h"
#include "Poco/MongoDB/ObjectId.h"
#include "Poco/MongoDB/Array.h"
#include "Poco/MongoDB/RegularExpression.h"
#include "Poco/MongoDB/JavaScriptCode.h"
namespace Poco
{
namespace MongoDB
{
Document::Document()
{
}
Document::~Document()
{
}
Element::Ptr Document::get(const std::string& name) const
{
Element::Ptr element;
ElementSet::const_iterator it = std::find_if(_elements.begin(), _elements.end(), ElementFindByName(name));
if ( it != _elements.end() )
{
return *it;
}
return element;
}
void Document::read(BinaryReader& reader)
{
int size;
reader >> size;
unsigned char type;
reader >> type;
while( type != '\0' )
{
Element::Ptr element;
std::string name = BSONReader(reader).readCString();
switch(type)
{
case ElementTraits<double>::TypeId:
element = new ConcreteElement<double>(name, 0);
break;
case ElementTraits<Int32>::TypeId:
element = new ConcreteElement<Int32>(name, 0);
break;
case ElementTraits<std::string>::TypeId:
element = new ConcreteElement<std::string>(name, "");
break;
case ElementTraits<Document::Ptr>::TypeId:
element = new ConcreteElement<Document::Ptr>(name, new Document());
break;
case ElementTraits<Array::Ptr>::TypeId:
element = new ConcreteElement<Array::Ptr>(name, new Array());
break;
case ElementTraits<Binary::Ptr>::TypeId:
element = new ConcreteElement<Binary::Ptr>(name, new Binary());
break;
case ElementTraits<ObjectId::Ptr>::TypeId:
element = new ConcreteElement<ObjectId::Ptr>(name, new ObjectId());
break;
case ElementTraits<bool>::TypeId:
element = new ConcreteElement<bool>(name, false);
break;
case ElementTraits<Poco::Timestamp>::TypeId:
element = new ConcreteElement<Poco::Timestamp>(name, Poco::Timestamp());
break;
case ElementTraits<NullValue>::TypeId:
element = new ConcreteElement<NullValue>(name, NullValue(0));
break;
case ElementTraits<RegularExpression::Ptr>::TypeId:
element = new ConcreteElement<RegularExpression::Ptr>(name, new RegularExpression());
break;
case ElementTraits<JavaScriptCode::Ptr>::TypeId:
element = new ConcreteElement<JavaScriptCode::Ptr>(name, new JavaScriptCode());
break;
case ElementTraits<Int64>::TypeId:
element = new ConcreteElement<Int64>(name, 0);
break;
default:
{
std::stringstream ss;
ss << "Element " << name << " contains an unsupported type " << std::hex << (int) type;
throw Poco::NotImplementedException(ss.str());
}
//TODO: x0F -> JavaScript code with scope
// xFF -> Min Key
// x7F -> Max Key
}
element->read(reader);
_elements.insert(element);
reader >> type;
}
}
std::string Document::toString(int indent) const
{
std::ostringstream oss;
oss << "{";
if ( indent > 0 )
{
oss << std::endl;
}
for(ElementSet::const_iterator it = _elements.begin(); it != _elements.end(); ++it)
{
if ( it != _elements.begin() )
{
oss << ",";
if ( indent > 0 )
{
oss << std::endl;
}
}
if ( indent > 0 )
{
for(int i = 0; i < indent; ++i)
{
oss << ' ';
}
}
oss << '"' << (*it)->name() << '"' << " : ";
if ( indent > 0 )
{
oss << (*it)->toString(indent + 2);
}
else
{
oss << (*it)->toString();
}
}
if ( indent > 0 )
{
oss << std::endl;
indent -= 2;
for(int i = 0; i < indent; ++i)
{
oss << ' ';
}
}
oss << "}";
return oss.str();
}
void Document::write(BinaryWriter& writer)
{
if ( _elements.empty() )
{
writer << 5;
}
else
{
std::stringstream sstream;
Poco::BinaryWriter tempWriter(sstream);
for(ElementSet::iterator it = _elements.begin(); it != _elements.end(); ++it)
{
tempWriter << (unsigned char) (*it)->type();
BSONWriter(tempWriter).writeCString((*it)->name());
Element::Ptr element = *it;
element->write(tempWriter);
}
tempWriter.flush();
Poco::Int32 len = 5 + sstream.tellp(); /* 5 = sizeof(len) + 0-byte */
writer << len;
writer.writeRaw(sstream.str());
}
writer << '\0';
}
}} // Namespace Poco::MongoDB