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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems
* Copyright (C) 2010 Stewart Smith
*
* 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
*/
#include "config.h"
#include <drizzled/plugin/function.h>
#include <drizzled/item/func.h>
#include <drizzled/function/str/strfunc.h>
#include <uuid/uuid.h>
#define UUID_LENGTH (8+1+4+1+4+1+4+1+12)
using namespace drizzled;
class UuidFunction: public Item_str_func
{
public:
UuidFunction(): Item_str_func() {}
void fix_length_and_dec() {
collation.set(system_charset_info);
/*
NOTE! uuid() should be changed to use 'ascii'
charset when hex(), format(), md5(), etc, and implicit
number-to-string conversion will use 'ascii'
*/
max_length= UUID_LENGTH * system_charset_info->mbmaxlen;
}
const char *func_name() const{ return "uuid"; }
String *val_str(String *);
};
String *UuidFunction::val_str(String *str)
{
uuid_t uu;
char *uuid_string;
/* 36 characters for uuid string +1 for NULL */
str->realloc(UUID_LENGTH+1);
str->length(UUID_LENGTH);
str->set_charset(system_charset_info);
uuid_string= (char *) str->ptr();
uuid_generate_random(uu);
uuid_unparse(uu, uuid_string);
return str;
}
plugin::Create_function<UuidFunction> *uuid_function= NULL;
static int initialize(drizzled::module::Context &context)
{
uuid_function= new plugin::Create_function<UuidFunction>("uuid");
context.add(uuid_function);
return 0;
}
DRIZZLE_DECLARE_PLUGIN
{
DRIZZLE_VERSION_ID,
"uuid",
"1.0",
"Stewart Smith",
"UUID() function using libuuid",
PLUGIN_LICENSE_GPL,
initialize, /* Plugin Init */
NULL, /* system variables */
NULL /* config options */
}
DRIZZLE_DECLARE_PLUGIN_END;
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