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//
// Row.cpp
//
// Library: Data
// Package: DataCore
// Module: Row
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Data/Row.h"
#include "Poco/Data/SimpleRowFormatter.h"
#include "Poco/String.h"
#include "Poco/Exception.h"
namespace Poco {
namespace Data {
std::ostream& operator << (std::ostream &os, const Row& row)
{
os << row.valuesToString();
return os;
}
Row::Row():
_pNames(0),
_pSortMap(new SortMap),
_pFormatter(new SimpleRowFormatter)
{
}
Row::Row(NameVecPtr pNames,
const RowFormatter::Ptr& pFormatter): _pNames(pNames)
{
if (!_pNames) throw NullPointerException();
init(0, pFormatter);
}
Row::Row(NameVecPtr pNames,
const SortMapPtr& pSortMap,
const RowFormatter::Ptr& pFormatter): _pNames(pNames)
{
if (!_pNames) throw NullPointerException();
init(pSortMap, pFormatter);
}
void Row::init(const SortMapPtr& pSortMap, const RowFormatter::Ptr& pFormatter)
{
setFormatter(pFormatter);
setSortMap(pSortMap);
NameVec::size_type sz = _pNames->size();
if (sz)
{
_values.resize(sz);
// Row sortability in the strict weak ordering sense is
// an invariant, hence we must start with a zero here.
// If null value is later retrieved from DB, the
// Var::empty() call should be used to empty
// the corresponding Row value.
_values[0] = 0;
addSortField(0);
}
}
Row::~Row()
{
}
Poco::Dynamic::Var& Row::get(std::size_t col)
{
try
{
return _values.at(col);
}
catch (std::out_of_range& re)
{
throw RangeException(re.what());
}
}
std::size_t Row::getPosition(const std::string& name)
{
if (!_pNames)
throw NullPointerException();
NameVec::const_iterator it = _pNames->begin();
NameVec::const_iterator end = _pNames->end();
std::size_t col = 0;
for (; it != end; ++it, ++col)
if (0 == icompare(name, *it)) return col;
throw NotFoundException(name);
}
void Row::addSortField(std::size_t pos)
{
poco_assert (pos <= _values.size());
SortMap::iterator it = _pSortMap->begin();
SortMap::iterator end = _pSortMap->end();
for (; it != end; ++it)
{
if (it->get<0>() == pos) return;
}
ComparisonType ct;
if (_values[pos].isEmpty())
{
ct = COMPARE_AS_EMPTY;
}
else if ((_values[pos].type() == typeid(Poco::Int8)) ||
(_values[pos].type() == typeid(Poco::UInt8)) ||
(_values[pos].type() == typeid(Poco::Int16)) ||
(_values[pos].type() == typeid(Poco::UInt16)) ||
(_values[pos].type() == typeid(Poco::Int32)) ||
(_values[pos].type() == typeid(Poco::UInt32)) ||
(_values[pos].type() == typeid(Poco::Int64)) ||
(_values[pos].type() == typeid(Poco::UInt64)) ||
(_values[pos].type() == typeid(bool)))
{
ct = COMPARE_AS_INTEGER;
}
else if ((_values[pos].type() == typeid(float)) ||
(_values[pos].type() == typeid(double)))
{
ct = COMPARE_AS_FLOAT;
}
else
{
ct = COMPARE_AS_STRING;
}
_pSortMap->push_back(SortTuple(pos, ct));
}
void Row::addSortField(const std::string& name)
{
addSortField(getPosition(name));
}
void Row::removeSortField(std::size_t pos)
{
SortMap::iterator it = _pSortMap->begin();
SortMap::iterator end = _pSortMap->end();
for (; it != end; ++it)
{
if (it->get<0>() == pos)
{
_pSortMap->erase(it);
return;
}
}
}
void Row::removeSortField(const std::string& name)
{
removeSortField(getPosition(name));
}
void Row::replaceSortField(std::size_t oldPos, std::size_t newPos)
{
poco_assert (oldPos <= _values.size());
poco_assert (newPos <= _values.size());
ComparisonType ct;
if (_values[newPos].isEmpty())
{
ct = COMPARE_AS_EMPTY;
}
else if ((_values[newPos].type() == typeid(Poco::Int8)) ||
(_values[newPos].type() == typeid(Poco::UInt8)) ||
(_values[newPos].type() == typeid(Poco::Int16)) ||
(_values[newPos].type() == typeid(Poco::UInt16)) ||
(_values[newPos].type() == typeid(Poco::Int32)) ||
(_values[newPos].type() == typeid(Poco::UInt32)) ||
(_values[newPos].type() == typeid(Poco::Int64)) ||
(_values[newPos].type() == typeid(Poco::UInt64)) ||
(_values[newPos].type() == typeid(bool)))
{
ct = COMPARE_AS_INTEGER;
}
else if ((_values[newPos].type() == typeid(float)) ||
(_values[newPos].type() == typeid(double)))
{
ct = COMPARE_AS_FLOAT;
}
else
{
ct = COMPARE_AS_STRING;
}
SortMap::iterator it = _pSortMap->begin();
SortMap::iterator end = _pSortMap->end();
for (; it != end; ++it)
{
if (it->get<0>() == oldPos)
{
*it = SortTuple(newPos, ct);
return;
}
}
throw NotFoundException("Field not found");
}
void Row::replaceSortField(const std::string& oldName, const std::string& newName)
{
replaceSortField(getPosition(oldName), getPosition(newName));
}
void Row::resetSort()
{
_pSortMap->clear();
if (_values.size()) addSortField(0);
}
bool Row::isEqualSize(const Row& other) const
{
return (other._values.size() == _values.size());
}
bool Row::isEqualType(const Row& other) const
{
std::vector<Poco::Dynamic::Var>::const_iterator it = _values.begin();
std::vector<Poco::Dynamic::Var>::const_iterator end = _values.end();
for (int i = 0; it != end; ++it, ++i)
{
if (it->type() != other._values[i].type())
return false;
}
return true;
}
bool Row::operator == (const Row& other) const
{
if (!isEqualSize(other)) return false;
if (!isEqualType(other)) return false;
std::vector<Poco::Dynamic::Var>::const_iterator it = _values.begin();
std::vector<Poco::Dynamic::Var>::const_iterator end = _values.end();
for (int i = 0; it != end; ++it, ++i)
{
if ((*it).convert<std::string>() != other._values[i].convert<std::string>())
return false;
}
return true;
}
bool Row::operator != (const Row& other) const
{
return !(*this == other);
}
bool Row::operator < (const Row& other) const
{
if (*_pSortMap != *other._pSortMap)
throw InvalidAccessException("Rows compared have different sorting criteria.");
SortMap::const_iterator it = _pSortMap->begin();
SortMap::const_iterator end = _pSortMap->end();
for (; it != end; ++it)
{
switch (it->get<1>())
{
case COMPARE_AS_EMPTY:
return false;
case COMPARE_AS_INTEGER:
if (_values[it->get<0>()].convert<Poco::Int64>() <
other._values[it->get<0>()].convert<Poco::Int64>())
return true;
else if (_values[it->get<0>()].convert<Poco::Int64>() !=
other._values[it->get<0>()].convert<Poco::Int64>())
return false;
break;
case COMPARE_AS_FLOAT:
if (_values[it->get<0>()].convert<double>() <
other._values[it->get<0>()].convert<double>())
return true;
else if (_values[it->get<0>()].convert<double>() !=
other._values[it->get<0>()].convert<double>())
return false;
break;
case COMPARE_AS_STRING:
if (_values[it->get<0>()].convert<std::string>() <
other._values[it->get<0>()].convert<std::string>())
return true;
else if (_values[it->get<0>()].convert<std::string>() !=
other._values[it->get<0>()].convert<std::string>())
return false;
break;
default:
throw IllegalStateException("Unknown comparison criteria.");
}
}
return false;
}
void Row::setFormatter(const RowFormatter::Ptr& pFormatter)
{
if (pFormatter.get())
_pFormatter = pFormatter;
else
_pFormatter = new SimpleRowFormatter;
}
void Row::setSortMap(const SortMapPtr& pSortMap)
{
if (pSortMap.get())
_pSortMap = pSortMap;
else
_pSortMap = new SortMap;
}
const std::string& Row::namesToString() const
{
if (!_pNames)
throw NullPointerException();
return _pFormatter->formatNames(names(), _nameStr);
}
void Row::formatNames() const
{
if (!_pNames)
throw NullPointerException();
return _pFormatter->formatNames(names());
}
} } // namespace Poco::Data
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