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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2009 Sun Microsystems
*
* 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.
*
* 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
*/
/**
* @file
* Plugins I_S table methods.
*/
#include "drizzled/server_includes.h"
#include "drizzled/session.h"
#include "drizzled/show.h"
#include "helper_methods.h"
#include "plugins.h"
#include <vector>
using namespace drizzled;
using namespace std;
/*
* Vectors of columns for the plugins I_S table.
*/
static vector<const plugin::ColumnInfo *> *columns= NULL;
/*
* Methods for the plugins I_S table.
*/
static plugin::InfoSchemaMethods *methods= NULL;
/*
* plugins I_S table.
*/
static plugin::InfoSchemaTable *plugins_table= NULL;
/**
* Populate the vectors of columns for the I_S table.
*
* @return a pointer to a std::vector of Columns.
*/
vector<const plugin::ColumnInfo *> *PluginsIS::createColumns()
{
if (columns == NULL)
{
columns= new vector<const plugin::ColumnInfo *>;
}
else
{
clearColumns(*columns);
}
columns->push_back(new plugin::ColumnInfo("PLUGIN_NAME",
NAME_CHAR_LEN,
DRIZZLE_TYPE_VARCHAR,
0,
0,
"Name"));
columns->push_back(new plugin::ColumnInfo("PLUGIN_TYPE",
NAME_CHAR_LEN,
DRIZZLE_TYPE_VARCHAR,
0,
0,
""));
columns->push_back(new plugin::ColumnInfo("IS_ACTIVE",
3,
DRIZZLE_TYPE_VARCHAR,
0,
0,
""));
columns->push_back(new plugin::ColumnInfo("MODULE_NAME",
NAME_CHAR_LEN,
DRIZZLE_TYPE_VARCHAR,
0,
0,
"Name"));
return columns;
}
/**
* Initialize the I_S table.
*
* @return a pointer to an I_S table
*/
plugin::InfoSchemaTable *PluginsIS::getTable()
{
columns= createColumns();
if (methods == NULL)
{
methods= new PluginsISMethods();
}
if (plugins_table == NULL)
{
plugins_table= new plugin::InfoSchemaTable("PLUGINS",
*columns,
-1, -1, false, false, 0,
methods);
}
return plugins_table;
}
/**
* Delete memory allocated for the table, columns and methods.
*/
void PluginsIS::cleanup()
{
clearColumns(*columns);
delete plugins_table;
delete methods;
delete columns;
}
class ShowPlugins
: public unary_function<pair<const string, const drizzled::plugin::Plugin *>, bool>
{
Session *session;
Table *table;
plugin::InfoSchemaTable *schema_table;
public:
ShowPlugins(Session *session_arg, Table *table_arg, plugin::InfoSchemaTable *sch_tab_arg)
: session(session_arg), table(table_arg), schema_table(sch_tab_arg) {}
result_type operator() (argument_type plugin)
{
const CHARSET_INFO * const cs= system_charset_info;
table->restoreRecordAsDefault();
/* mark fields that will be written to in the write bitset */
table->setWriteSet(0);
table->setWriteSet(1);
table->setWriteSet(2);
table->setWriteSet(3);
table->setWriteSet(4);
table->setWriteSet(5);
table->field[0]->store(plugin.first.c_str(),
plugin.first.size(), cs);
table->field[1]->store(plugin.second->getTypeName().c_str(),
plugin.second->getTypeName().size(), cs);
if (plugin.second->isActive())
{
table->field[2]->store(STRING_WITH_LEN("YES"),cs);
}
else
{
table->field[2]->store(STRING_WITH_LEN("NO"), cs);
}
table->field[3]->store(plugin.second->getModuleName().c_str(),
plugin.second->getModuleName().size(), cs);
schema_table->addRow(table->record[0], table->s->reclength);
return false;
}
};
int PluginsISMethods::fillTable(Session *session,
Table *table,
plugin::InfoSchemaTable *schema_table)
{
drizzled::plugin::Registry ®istry= drizzled::plugin::Registry::singleton();
const map<string, const drizzled::plugin::Plugin *> &plugin_map=
registry.getPluginsMap();
map<string, const drizzled::plugin::Plugin *>::const_iterator iter=
find_if(plugin_map.begin(), plugin_map.end(), ShowPlugins(session, table, schema_table));
if (iter != plugin_map.end())
{
return 1;
}
return 0;
}
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