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//
// Document.cpp
//
// Library: MongoDB
// Package: MongoDB
// Module: Document
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#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"
#include <sstream>
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;
}
Int64 Document::getInteger(const std::string& name) const
{
Element::Ptr element = get(name);
if (element.isNull()) throw Poco::NotFoundException(name);
if (ElementTraits<double>::TypeId == element->type())
{
ConcreteElement<double>* concrete = dynamic_cast<ConcreteElement<double>*>(element.get());
if (concrete) return static_cast<Int64>(concrete->value());
}
else if (ElementTraits<Int32>::TypeId == element->type())
{
ConcreteElement<Int32>* concrete = dynamic_cast<ConcreteElement<Int32>*>(element.get());
if (concrete) return concrete->value();
}
else if (ElementTraits<Int64>::TypeId == element->type())
{
ConcreteElement<Int64>* concrete = dynamic_cast<ConcreteElement<Int64>*>(element.get());
if (concrete) return concrete->value();
}
throw Poco::BadCastException("Invalid type mismatch!");
}
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<BSONTimestamp>::TypeId:
element = new ConcreteElement<BSONTimestamp>(name, BSONTimestamp());
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 0x" << 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.push_back(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;
}
for (int i = 0; i < indent; ++i) oss << ' ';
oss << '"' << (*it)->name() << '"';
oss << (indent > 0 ? " : " : ":");
oss << (*it)->toString(indent > 0 ? indent + 2 : 0);
}
if (indent > 0)
{
oss << std::endl;
if (indent >= 2) 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 << static_cast<unsigned char>((*it)->type());
BSONWriter(tempWriter).writeCString((*it)->name());
Element::Ptr element = *it;
element->write(tempWriter);
}
tempWriter.flush();
Poco::Int32 len = static_cast<Poco::Int32>(5 + sstream.tellp()); /* 5 = sizeof(len) + 0-byte */
writer << len;
writer.writeRaw(sstream.str());
}
writer << '\0';
}
} } // namespace Poco::MongoDB
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