Exheredludis/paludis/output_manager_factory.hh
2012-04-15 14:51:19 +01:00

112 lines
4.5 KiB
C++

/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2009, 2010, 2011 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
*/
#ifndef PALUDIS_GUARD_PALUDIS_OUTPUT_MANAGER_FACTORY_HH
#define PALUDIS_GUARD_PALUDIS_OUTPUT_MANAGER_FACTORY_HH 1
#include <paludis/output_manager_factory-fwd.hh>
#include <paludis/output_manager-fwd.hh>
#include <paludis/util/attributes.hh>
#include <paludis/util/map-fwd.hh>
#include <paludis/util/pimp.hh>
#include <paludis/util/set-fwd.hh>
#include <paludis/util/singleton.hh>
#include <paludis/util/wrapped_forward_iterator.hh>
#include <functional>
#include <memory>
namespace paludis
{
extern template class PALUDIS_VISIBLE Singleton<OutputManagerFactory>;
class PALUDIS_VISIBLE OutputManagerFactory :
public Singleton<OutputManagerFactory>
{
friend class Singleton<OutputManagerFactory>;
private:
Pimp<OutputManagerFactory> _imp;
OutputManagerFactory();
~OutputManagerFactory();
public:
typedef std::function<std::string (const std::string &)> KeyFunction;
typedef std::function<const std::shared_ptr<OutputManager> (
const std::string &)> CreateChildFunction;
typedef std::function<std::string (
const std::string & pattern,
const std::shared_ptr<const Map<std::string, std::string> > & extra_vars)> ReplaceVarsFunc;
typedef std::function<const std::shared_ptr<OutputManager>(
const KeyFunction &,
const CreateChildFunction &,
const ReplaceVarsFunc &
)> CreateFunction;
/**
* Construct a given OutputManager, or throw ConfigurationError.
*
* \param key_function should return the value for a given key. The
* 'handler' key must return a value (e.g. 'standard'), which is used
* to select the return type. Other key names are manager defined,
* but typically include things like 'location' and 'keep_on_success'.
*
* \param create_child_function is used by, for example,
* TeeOutputManager to create child streams. Given a single string,
* this function returns the appropriate child.
*
* \param replace_vars_func should replace '%{vars}' with their
* expanded forms. Variables include 'name', 'action' etc. This is
* used by, for example, FileOutputManager to allow the user to
* specify the output file names.
*/
const std::shared_ptr<OutputManager> create(
const KeyFunction & key_function,
const CreateChildFunction & create_child_function,
const ReplaceVarsFunc & replace_vars_func
) const PALUDIS_ATTRIBUTE((warn_unused_result));
/**
* Add a manager.
*
* \param managers must have at least one value, and no value may be
* specified more than once across all invocations.
*
* \param create_function is used to implement OutputManagerFactory::create.
*/
void add_manager(
const std::shared_ptr<const Set<std::string> > & managers,
const CreateFunction & create_function
);
struct ConstIteratorTag;
typedef WrappedForwardIterator<ConstIteratorTag, const std::string> ConstIterator;
ConstIterator begin_keys() const PALUDIS_ATTRIBUTE((warn_unused_result));
ConstIterator end_keys() const PALUDIS_ATTRIBUTE((warn_unused_result));
};
extern template class Pimp<OutputManagerFactory>;
extern template class PALUDIS_VISIBLE WrappedForwardIterator<OutputManagerFactory::ConstIteratorTag, const std::string>;
}
#endif