Drizzled Public API Documentation

schemas.cc
00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2010 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #include <config.h>
00022 #include <plugin/schema_dictionary/dictionary.h>
00023 
00024 using namespace std;
00025 using namespace drizzled;
00026 
00027 SchemasTool::SchemasTool() :
00028   DataDictionary("SCHEMAS")
00029 {
00030   add_field("SCHEMA_NAME");
00031   add_field("DEFAULT_COLLATION_NAME");
00032   add_field("SCHEMA_CREATION_TIME");
00033   add_field("SCHEMA_UPDATE_TIME");
00034   add_field("SCHEMA_UUID", plugin::TableFunction::STRING, 36, true);
00035   add_field("SCHEMA_VERSION", plugin::TableFunction::NUMBER, 0, true);
00036   add_field("SCHEMA_USE_COUNT", plugin::TableFunction::NUMBER, 0, true);
00037   add_field("IS_REPLICATED", plugin::TableFunction::BOOLEAN, 0, false);
00038   add_field("SCHEMA_DEFINER", plugin::TableFunction::STRING, 64, true);
00039 }
00040 
00041 SchemasTool::Generator::Generator(drizzled::Field **arg) :
00042   DataDictionary::Generator(arg),
00043   schema_generator(getSession())
00044 {
00045 }
00046 
00047 bool SchemasTool::Generator::populate()
00048 {
00049   drizzled::message::schema::shared_ptr schema_ptr;
00050   while ((schema_ptr= schema_generator))
00051   {
00052     /* SCHEMA_NAME */
00053     push(schema_ptr->name());
00054 
00055     /* DEFAULT_COLLATION_NAME */
00056     push(schema_ptr->collation());
00057 
00058     /* SCHEMA_CREATION_TIME */
00059     time_t time_arg= schema_ptr->creation_timestamp();
00060     char buffer[40];
00061     struct tm tm_buffer;
00062 
00063     localtime_r(&time_arg, &tm_buffer);
00064     strftime(buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y", &tm_buffer);
00065     push(buffer);
00066 
00067     /* SCHEMA_UPDATE_TIME */
00068     time_arg= schema_ptr->update_timestamp();
00069     localtime_r(&time_arg, &tm_buffer);
00070     strftime(buffer, sizeof(buffer), "%a %b %d %H:%M:%S %Y", &tm_buffer);
00071     push(buffer);
00072 
00073     /* SCHEMA_UUID */
00074     push(schema_ptr->uuid());
00075 
00076     /* SCHEMA_VERSION */
00077     push(schema_ptr->version());
00078 
00079     /* SCHEMA_USE_COUNT */
00080     push(schema_ptr->version());
00081 
00082     /* IS_REPLICATED */
00083     push(message::is_replicated(*schema_ptr));
00084 
00085     /* _DEFINER */
00086     if (message::has_definer(*schema_ptr))
00087     {
00088       push(message::definer(*schema_ptr));
00089     }
00090     else
00091     {
00092       push();
00093     }
00094 
00095     return true;
00096   }
00097 
00098   return false;
00099 }