~drizzle-trunk/drizzle/development : contents of drizzled/plugin/function.cc at revision 1991.1.1

~drizzle-trunk/drizzle/development : (revision 1991.1.1)

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2000 MySQL AB
 *  Copyright (C) 2008, 2009 Sun Microsystems, Inc.
 *
 *  This program 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; version 2 of the License.
 *
 *  This program 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

/* This implements 'user defined functions' */
#include "config.h"

#include <boost/unordered_map.hpp>

#include <drizzled/gettext.h>
#include "drizzled/plugin/function.h"

#include "drizzled/util/string.h"

namespace drizzled
{

static plugin::Function::UdfMap udf_registry;

const plugin::Function::UdfMap &plugin::Function::getMap()
{
  return udf_registry;
}

bool plugin::Function::addPlugin(const plugin::Function *udf)
{
  if (udf_registry.find(udf->getName()) != udf_registry.end())
  {
    errmsg_printf(ERRMSG_LVL_ERROR,
                  _("A function named %s already exists!\n"),
                  udf->getName().c_str());
    return true;
  }
  std::pair<UdfMap::iterator, bool> ret=
    udf_registry.insert(make_pair(udf->getName(), udf));
  if (ret.second == false)
  {
    errmsg_printf(ERRMSG_LVL_ERROR,
                  _("Could not add Function!\n"));
    return true;
  }
  return false;
}


void plugin::Function::removePlugin(const plugin::Function *udf)
{
  udf_registry.erase(udf->getName());
}

const plugin::Function *plugin::Function::get(const char *name, size_t length)
{
  UdfMap::iterator iter= udf_registry.find(std::string(name, length));
  if (iter == udf_registry.end())
  {
    return NULL;
  }
  return (*iter).second;
}

} /* namespace drizzled */

1130.3.10 by Monty Taylor Cleaned up service namespacing.	1	/* -- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; --
	2	* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
	3	*
	4	* Copyright (C) 2000 MySQL AB
	5	* Copyright (C) 2008, 2009 Sun Microsystems, Inc.
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; version 2 of the License.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
1 by brian clean slate	20
1 by brian clean slate	21	/* This implements 'user defined functions' */
1241.9.36 by Monty Taylor ZOMG. I deleted drizzled/server_includes.h.	22	#include "config.h"
1429.3.1 by Monty Taylor Use unordered_map from the upcoming c++0x standard instead of a homemade	23
1678.1.1 by Monty Taylor Removed our unordered wrappers. We use Boost now.	24	#include <boost/unordered_map.hpp>
1429.3.1 by Monty Taylor Use unordered_map from the upcoming c++0x standard instead of a homemade	25
538 by Monty Taylor Moved gettext.h into drizzled in anticipation of the new client lib.	26	#include <drizzled/gettext.h>
1130.1.12 by Monty Taylor Moved service stuff into plugin/	27	#include "drizzled/plugin/function.h"
873.2.22 by Monty Taylor Got rid of my_hash_sort_utf8mb4 for udfs.	28
1669.3.8 by Brian Aker Udf lookup now done via case insensitive unordered map	29	#include "drizzled/util/string.h"
	30
1130.3.10 by Monty Taylor Cleaned up service namespacing.	31	namespace drizzled
1130.3.10 by Monty Taylor Cleaned up service namespacing.	32	{
1130.1.12 by Monty Taylor Moved service stuff into plugin/	33
1751.3.2 by Brian Aker Adding in data dictionary table to list out functions.	34	static plugin::Function::UdfMap udf_registry;
	35
	36	const plugin::Function::UdfMap &plugin::Function::getMap()
	37	{
	38	return udf_registry;
	39	}
1130.1.12 by Monty Taylor Moved service stuff into plugin/	40
1130.1.19 by Monty Taylor Added error reporting to plugin registration.	41	bool plugin::Function::addPlugin(const plugin::Function *udf)
134.1.1 by Mark Atwood more hackery to get plugin UDFs working	42	{
1669.3.8 by Brian Aker Udf lookup now done via case insensitive unordered map	43	if (udf_registry.find(udf->getName()) != udf_registry.end())
1228.3.1 by Monty Taylor Removed NameMap. Also remove the aliases from the plugin, since we can just	44	{
	45	errmsg_printf(ERRMSG_LVL_ERROR,
	46	_("A function named %s already exists!\n"),
	47	udf->getName().c_str());
	48	return true;
	49	}
1966.2.9 by Brian Aker Remove the use of "using std" from the plugin interface .cc files.	50	std::pair<UdfMap::iterator, bool> ret=
1669.3.8 by Brian Aker Udf lookup now done via case insensitive unordered map	51	udf_registry.insert(make_pair(udf->getName(), udf));
1228.3.1 by Monty Taylor Removed NameMap. Also remove the aliases from the plugin, since we can just	52	if (ret.second == false)
	53	{
	54	errmsg_printf(ERRMSG_LVL_ERROR,
	55	_("Could not add Function!\n"));
1130.1.19 by Monty Taylor Added error reporting to plugin registration.	56	return true;
	57	}
	58	return false;
134.1.1 by Mark Atwood more hackery to get plugin UDFs working	59	}
	60
1130.1.12 by Monty Taylor Moved service stuff into plugin/	61
1130.1.18 by Monty Taylor Changed ::add() and ::remove() to ::addPlugin() and ::removePlugin() so that	62	void plugin::Function::removePlugin(const plugin::Function *udf)
968.2.31 by Monty Taylor Fixed UDF de-initialization.	63	{
1669.3.8 by Brian Aker Udf lookup now done via case insensitive unordered map	64	udf_registry.erase(udf->getName());
968.2.31 by Monty Taylor Fixed UDF de-initialization.	65	}
968.2.31 by Monty Taylor Fixed UDF de-initialization.	66
1130.1.12 by Monty Taylor Moved service stuff into plugin/	67	const plugin::Function plugin::Function::get(const char name, size_t length)
1130.1.12 by Monty Taylor Moved service stuff into plugin/	68	{
1669.3.8 by Brian Aker Udf lookup now done via case insensitive unordered map	69	UdfMap::iterator iter= udf_registry.find(std::string(name, length));
1228.3.1 by Monty Taylor Removed NameMap. Also remove the aliases from the plugin, since we can just	70	if (iter == udf_registry.end())
	71	{
	72	return NULL;
	73	}
	74	return (*iter).second;
1130.1.12 by Monty Taylor Moved service stuff into plugin/	75	}
1130.1.12 by Monty Taylor Moved service stuff into plugin/	76
1130.3.10 by Monty Taylor Cleaned up service namespacing.	77	} /* namespace drizzled */