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/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2008, 2009, 2010 Ciaran McCreesh
*
* This file is part of the Paludis package manager. Paludis is free software;
* you can redistribute it and/or modify it under the terms of the GNU General
* Public License version 2, as published by the Free Software Foundation.
*
* Paludis 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
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <paludis/metadata_key_holder.hh>
#include <paludis/util/indirect_iterator-impl.hh>
#include <paludis/util/wrapped_forward_iterator-impl.hh>
#include <paludis/util/stringify.hh>
#include <paludis/util/exception.hh>
#include <paludis/util/pimp-impl.hh>
#include <paludis/metadata_key.hh>
#include <functional>
#include <list>
#include <algorithm>
using namespace paludis;
namespace paludis
{
template <>
struct Imp<MetadataKeyHolder>
{
mutable std::list<std::shared_ptr<const MetadataKey> > keys;
};
template <>
struct WrappedForwardIteratorTraits<MetadataKeyHolder::MetadataConstIteratorTag>
{
typedef std::list<std::shared_ptr<const MetadataKey> >::const_iterator UnderlyingIterator;
};
}
MetadataKeyHolder::MetadataKeyHolder() :
Pimp<MetadataKeyHolder>()
{
}
MetadataKeyHolder::~MetadataKeyHolder()
{
}
void
MetadataKeyHolder::add_metadata_key(const std::shared_ptr<const MetadataKey> & k) const
{
using namespace std::placeholders;
if (indirect_iterator(_imp->keys.end()) != std::find_if(indirect_iterator(_imp->keys.begin()), indirect_iterator(_imp->keys.end()),
std::bind(std::equal_to<std::string>(), k->raw_name(), std::bind(std::mem_fn(&MetadataKey::raw_name), _1))))
throw ConfigurationError("Tried to add duplicate key '" + k->raw_name() + "'");
_imp->keys.push_back(k);
}
MetadataKeyHolder::MetadataConstIterator
MetadataKeyHolder::begin_metadata() const
{
need_keys_added();
return MetadataConstIterator(_imp->keys.begin());
}
MetadataKeyHolder::MetadataConstIterator
MetadataKeyHolder::end_metadata() const
{
need_keys_added();
return MetadataConstIterator(_imp->keys.end());
}
MetadataKeyHolder::MetadataConstIterator
MetadataKeyHolder::find_metadata(const std::string & s) const
{
using namespace std::placeholders;
need_keys_added();
// std::mem_fn on a sptr doesn't work with boost
// return std::find_if(begin_metadata(), end_metadata(),
// std::bind(std::equal_to<std::string>(), s, std::bind(std::mem_fn(&MetadataKey::raw_name), _1)));
for (MetadataConstIterator i(begin_metadata()), i_end(end_metadata()) ;
i != i_end ; ++i)
if ((*i)->raw_name() == s)
return i;
return end_metadata();
}
void
MetadataKeyHolder::clear_metadata_keys() const
{
_imp->keys.clear();
}
template class WrappedForwardIterator<MetadataKeyHolder::MetadataConstIteratorTag, const std::shared_ptr<const MetadataKey> >;
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