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/*
* Copyright (C) 2013 Tobias Brunner
* Copyright (C) 2008 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#include <hydra.h>
#include <utils/debug.h>
#include <plugins/plugin_feature.h>
#include "attr_sql_plugin.h"
#include "sql_attribute.h"
typedef struct private_attr_sql_plugin_t private_attr_sql_plugin_t;
/**
* private data of attr_sql plugin
*/
struct private_attr_sql_plugin_t {
/**
* implements plugin interface
*/
attr_sql_plugin_t public;
/**
* database connection instance
*/
database_t *db;
/**
* configuration attributes
*/
sql_attribute_t *attribute;
};
METHOD(plugin_t, get_name, char*,
private_attr_sql_plugin_t *this)
{
return "attr-sql";
}
/**
* Connect to database
*/
static bool open_database(private_attr_sql_plugin_t *this,
plugin_feature_t *feature, bool reg, void *cb_data)
{
if (reg)
{
char *uri;
uri = lib->settings->get_str(lib->settings,
"%s.plugins.attr-sql.database", NULL, lib->ns);
if (!uri)
{
DBG1(DBG_CFG, "attr-sql plugin: database URI not set");
return FALSE;
}
this->db = lib->db->create(lib->db, uri);
if (!this->db)
{
DBG1(DBG_CFG, "attr-sql plugin failed to connect to database");
return FALSE;
}
this->attribute = sql_attribute_create(this->db);
hydra->attributes->add_provider(hydra->attributes,
&this->attribute->provider);
}
else
{
hydra->attributes->remove_provider(hydra->attributes,
&this->attribute->provider);
this->attribute->destroy(this->attribute);
this->db->destroy(this->db);
}
return TRUE;
}
METHOD(plugin_t, get_features, int,
private_attr_sql_plugin_t *this, plugin_feature_t *features[])
{
static plugin_feature_t f[] = {
PLUGIN_CALLBACK((plugin_feature_callback_t)open_database, NULL),
PLUGIN_PROVIDE(CUSTOM, "attr-sql"),
PLUGIN_DEPENDS(DATABASE, DB_ANY),
};
*features = f;
return countof(f);
}
METHOD(plugin_t, destroy, void,
private_attr_sql_plugin_t *this)
{
free(this);
}
/*
* see header file
*/
plugin_t *attr_sql_plugin_create()
{
private_attr_sql_plugin_t *this;
INIT(this,
.public = {
.plugin = {
.get_name = _get_name,
.get_features = _get_features,
.destroy = _destroy,
},
},
);
lib->settings->add_fallback(lib->settings, "%s.plugins.attr-sql",
"libhydra.plugins.attr-sql", lib->ns);
return &this->public.plugin;
}
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