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/*
* The Mana World Server
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or any later version.
*
* The Mana World is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with The Mana World; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include <algorithm>
#include <sstream>
#include <stdexcept>
#include "dal/recordset.h"
#include "dal/dalexcept.h"
namespace dal
{
/**
* Default constructor.
*/
RecordSet::RecordSet(void)
throw()
{
// NOOP
}
/**
* Destructor.
*/
RecordSet::~RecordSet(void)
throw()
{
// NOOP
}
/**
* Remove all the Records.
*/
void
RecordSet::clear(void)
{
mHeaders.clear();
mRows.clear();
}
/**
* Check if the RecordSet is empty.
*/
bool
RecordSet::isEmpty(void) const
{
return (mRows.size() == 0);
}
/**
* Get the number of rows.
*
* @return the number of rows.
*/
unsigned int
RecordSet::rows(void) const
{
return mRows.size();
}
/**
* Get the number of columns.
*
* @return the number of columns.
*/
unsigned int
RecordSet::cols(void) const
{
return mHeaders.size();
}
/**
* Set the column headers.
*/
void
RecordSet::setColumnHeaders(const Row& headers)
{
if (mHeaders.size() > 0) {
throw AlreadySetException();
}
mHeaders = headers;
}
/**
* Add a new row.
*/
void
RecordSet::add(const Row& row)
{
const unsigned int nCols = mHeaders.size();
if (nCols == 0) {
throw RsColumnHeadersNotSet();
}
if (row.size() != nCols) {
std::ostringstream msg;
msg << "row has " << row.size() << " columns; "
<< "expected: " << nCols << std::ends;
throw std::invalid_argument(msg.str());
}
mRows.push_back(row);
}
/**
* Operator()
*/
const std::string&
RecordSet::operator()(const unsigned int row,
const unsigned int col) const
{
if ((row >= mRows.size()) || (col >= mHeaders.size())) {
std::ostringstream os;
os << "(" << row << ", " << col << ") is out of range; "
<< "max rows: " << mRows.size()
<< ", max cols: " << mHeaders.size() << std::ends;
throw std::out_of_range(os.str());
}
return mRows[row][col];
}
/**
* Operator()
*/
const std::string&
RecordSet::operator()(const unsigned int row,
const std::string& name) const
{
if (row >= mRows.size()) {
std::ostringstream os;
os << "row " << row << " is out of range; "
<< "max rows: " << mRows.size() << std::ends;
throw std::out_of_range(os.str());
}
Row::const_iterator it = std::find(mHeaders.begin(),
mHeaders.end(),
name);
if (it == mHeaders.end()) {
std::ostringstream os;
os << "field " << name << " does not exist." << std::ends;
throw std::invalid_argument(os.str());
}
// find the field index.
const unsigned int nCols = mHeaders.size();
unsigned int i;
for (i = 0; i < nCols; ++i) {
if (mHeaders[i] == name) {
break;
}
}
return mRows[row][i];
}
/**
* Operator<<
*/
std::ostream&
operator<<(std::ostream& out, const RecordSet& rhs)
{
// print the field names first.
if (rhs.mHeaders.size() > 0) {
out << "|";
for (Row::const_iterator it = rhs.mHeaders.begin();
it != rhs.mHeaders.end();
++it)
{
out << (*it) << "|";
}
out << std::endl << std::endl;
}
// and then print every line.
for (RecordSet::Rows::const_iterator it = rhs.mRows.begin();
it != rhs.mRows.end();
++it)
{
out << "|";
for (Row::const_iterator it2 = (*it).begin();
it2 != (*it).end();
++it2)
{
out << (*it2) << "|";
}
out << std::endl;
}
return out;
}
} // namespace dal
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