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Viewing changes to plugin/function_engine/function.cc

  • Committer: Monty Taylor
  • Date: 2010-10-02 05:07:25 UTC
  • mto: (1817.1.3 build)
  • mto: This revision was merged to the branch mainline in revision 1818.
  • Revision ID: mordred@inaugust.com-20101002050725-h1b30b0nr3leeoh1
https://launchpad.net/bugs/652652
Embed a modified version of parse_config_file. There are several more bugs
that we'll want to fix in it, and then submit upstream. Eventually we should
be able to remove this- but for now the version on lucid is completely
broken.

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Lines of Context:
plugin/function_engine/function.cc
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using namespace std;
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using namespace drizzled;
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static SchemaIdentifier INFORMATION_SCHEMA_IDENTIFIER("INFORMATION_SCHEMA");
 
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static SchemaIdentifier DATA_DICTIONARY_IDENTIFIER("DATA_DICTIONARY");
 
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Function::Function(const std::string &name_arg) :
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  drizzled::plugin::StorageEngine(name_arg,
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                                  HTON_ALTER_NOT_SUPPORTED |
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                                  HTON_HAS_DATA_DICTIONARY |
 
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                                  HTON_HAS_SCHEMA_DICTIONARY |
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                                  HTON_SKIP_STORE_LOCK |
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                                  HTON_TEMPORARY_NOT_SUPPORTED)
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{
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}
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Cursor *Function::create(TableShare &table, memory::Root *mem_root)
 
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Cursor *Function::create(TableShare &table)
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{
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  return new (mem_root) FunctionCursor(*this, table);
 
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  return new FunctionCursor(*this, table);
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}
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int Function::doGetTableDefinition(Session &,
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                                     const char *path,
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                                     const char *,
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                                     const char *,
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                                     const bool,
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                                     message::Table *table_proto)
 
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                                   const TableIdentifier &identifier,
 
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                                   message::Table &table_proto)
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{
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  string tab_name(path);
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  transform(tab_name.begin(), tab_name.end(),
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            tab_name.begin(), ::tolower);
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  drizzled::plugin::TableFunction *function= getFunction(tab_name);
 
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  drizzled::plugin::TableFunction *function= getFunction(identifier.getPath());
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  if (not function)
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  {
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    return ENOENT;
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  }
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  if (table_proto)
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  {
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    function->define(*table_proto);
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  }
 
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  function->define(table_proto);
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  return EEXIST;
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}
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void Function::doGetTableNames(drizzled::CachedDirectory&, 
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                               string &db, 
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                               set<string> &set_of_names)
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{
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  drizzled::plugin::TableFunction::getNames(db, set_of_names);
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}
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static drizzled::plugin::StorageEngine *function_plugin= NULL;
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static int init(drizzled::plugin::Registry &registry)
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{
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  function_plugin= new(std::nothrow) Function("FunctionEngine");
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  if (not function_plugin)
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  {
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    return 1;
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  }
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  registry.add(function_plugin);
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  return 0;
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}
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static int finalize(drizzled::plugin::Registry &registry)
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{
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  registry.remove(function_plugin);
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  delete function_plugin;
 
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void Function::doGetSchemaIdentifiers(SchemaIdentifiers& schemas)
 
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{
 
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  schemas.push_back(INFORMATION_SCHEMA_IDENTIFIER);
 
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  schemas.push_back(DATA_DICTIONARY_IDENTIFIER);
 
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}
 
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bool Function::doGetSchemaDefinition(const SchemaIdentifier &schema_identifier, message::Schema &schema_message)
 
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{
 
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  if (schema_identifier == INFORMATION_SCHEMA_IDENTIFIER)
 
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  {
 
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    schema_message.set_name("information_schema");
 
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    schema_message.set_collation("utf8_general_ci");
 
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  }
 
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  else if (schema_identifier == DATA_DICTIONARY_IDENTIFIER)
 
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  {
 
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    schema_message.set_name("data_dictionary");
 
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    schema_message.set_collation("utf8_general_ci");
 
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  }
 
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  else
 
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  {
 
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    return false;
 
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  }
 
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  return true;
 
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}
 
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bool Function::doCanCreateTable(const drizzled::TableIdentifier &table_identifier)
 
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{
 
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  if (static_cast<const SchemaIdentifier&>(table_identifier) == INFORMATION_SCHEMA_IDENTIFIER)
 
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  {
 
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    return false;
 
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  }
 
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  else if (static_cast<const SchemaIdentifier&>(table_identifier) == DATA_DICTIONARY_IDENTIFIER)
 
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  {
 
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    return false;
 
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  }
 
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  return true;
 
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}
 
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bool Function::doDoesTableExist(Session&, const TableIdentifier &identifier)
 
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{
 
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  drizzled::plugin::TableFunction *function= getFunction(identifier.getPath());
 
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  if (function)
 
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    return true;
 
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  return false;
 
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}
 
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void Function::doGetTableIdentifiers(drizzled::CachedDirectory&,
 
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                                     const drizzled::SchemaIdentifier &schema_identifier,
 
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                                     drizzled::TableIdentifiers &set_of_identifiers)
 
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{
 
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  set<string> set_of_names;
 
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  drizzled::plugin::TableFunction::getNames(schema_identifier.getSchemaName(), set_of_names);
 
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  for (set<string>::iterator iter= set_of_names.begin(); iter != set_of_names.end(); iter++)
 
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  {
 
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    set_of_identifiers.push_back(TableIdentifier(schema_identifier, *iter, drizzled::message::Table::FUNCTION));
 
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  }
 
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}
 
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static int init(drizzled::module::Context &context)
 
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{
 
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  context.add(new Function("FunctionEngine"));
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  return 0;
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}
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  "Function Engine provides the infrastructure for Table Functions,etc.",
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  PLUGIN_LICENSE_GPL,
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  init,     /* Plugin Init */
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  finalize,     /* Plugin Deinit */
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  NULL,               /* system variables */
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  NULL                /* config options   */
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}