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Diffstat (limited to 'qlparser/qtcommand.cc')
| -rw-r--r-- | qlparser/qtcommand.cc | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/qlparser/qtcommand.cc b/qlparser/qtcommand.cc new file mode 100644 index 0000000..3574519 --- /dev/null +++ b/qlparser/qtcommand.cc @@ -0,0 +1,182 @@ +/* +* This file is part of rasdaman community. +* +* Rasdaman community 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 3 of the License, or +* (at your option) any later version. +* +* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>. +* +* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / +rasdaman GmbH. +* +* For more information please see <http://www.rasdaman.org> +* or contact Peter Baumann via <baumann@rasdaman.com>. +*/ +/************************************************************* + * + * + * PURPOSE: + * + * + * COMMENTS: + * + ************************************************************/ + +static const char rcsid[] = "@(#)qlparser, QtCommand: $Header: /home/rasdev/CVS-repository/rasdaman/qlparser/qtcommand.cc,v 1.21 2005/09/03 20:17:55 rasdev Exp $"; + +#include "qlparser/qtcommand.hh" +#include "mddmgr/mddcoll.hh" +#include "catalogmgr/typefactory.hh" +#include "reladminif/databaseif.hh" +#include "relcatalogif/settype.hh" +#include "servercomm/servercomm.hh" + +#include <iostream> + + +extern ServerComm::ClientTblElt* currentClientTblElt; + +const QtNode::QtNodeType QtCommand::nodeType = QtNode::QT_COMMAND; + + + +QtCommand::QtCommand( QtCommandType initCommand, const std::string& initCollection, const std::string& initType ) + : QtExecute(), + command( initCommand ), + collectionName( initCollection ), + typeName( initType ) +{ +} + + + +QtCommand::QtCommand( QtCommandType initCommand, const std::string& initCollection ) + : QtExecute(), + command( initCommand ), + collectionName( initCollection ) +{ +} + + + +int +QtCommand::evaluate() +{ + RMDBGENTER(2, RMDebug::module_qlparser, "QtCommand", "evaluate()") + + switch( command ) + { + case QT_DROP_COLLECTION: + if( currentClientTblElt ) + if (!MDDColl::dropMDDCollection(collectionName.c_str())) + { + RMInit::logOut << "Error during query evaluation: collection name not found: " << collectionName.c_str() << std::endl; + parseInfo.setErrorNo(957); + throw parseInfo; + } + break; + case QT_CREATE_COLLECTION: + if( currentClientTblElt ) + { + // get collection type + CollectionType* collType = (CollectionType*)TypeFactory::mapSetType( (char*)typeName.c_str() ); + + if( collType ) + { + // allocate a new oid within the current db + OId oid; +#ifdef BASEDB_O2 + if( !OId::allocateMDDCollOId( &oid ) ) + { +#else + OId::allocateOId(oid, OId::MDDCOLLOID); +#endif + try + { + MDDColl* coll = MDDColl::createMDDCollection(collectionName.c_str(), oid, collType); + delete coll; + coll=NULL; + } + catch( r_Error& obj ) + { + RMInit::logOut << "Error during query evaluation: collection name exists already: " << collectionName.c_str() << std::endl; + if (obj.get_kind() != r_Error::r_Error_NameNotUnique) + RMInit::logOut << "Exception: " << obj.what() << std::endl;; + parseInfo.setErrorNo(955); + throw parseInfo; + } +#ifdef BASEDB_O2 + } + else + { + RMInit::logOut << "Error: QtCommand::evaluate() - oid allocation failed" << std::endl; + parseInfo.setErrorNo(958); + throw parseInfo; + } +#endif + } + else + { + RMInit::logOut << "Error during query evaluation: collection type not found: " << (char*)typeName.c_str() << std::endl; + parseInfo.setErrorNo(956); + throw parseInfo; + } + break; + } + } + + RMDBGEXIT(2, RMDebug::module_qlparser, "QtCommand", "evaluate()") + + return 0; +} + + + +void +QtCommand::printTree( int tab, std::ostream& s, QtChildType mode ) +{ + s << SPACE_STR(tab).c_str() << "QtCommand Object" << std::endl; + + switch( command ) + { + case QT_DROP_COLLECTION: s << SPACE_STR(tab).c_str() << " drop collection(" << collectionName.c_str() << ")"; break; + case QT_CREATE_COLLECTION: s << SPACE_STR(tab).c_str() << " create collection(" << collectionName.c_str() << ", " << typeName.c_str() <<")"; break; + default: s << "<command unknown>"; + } + + s << std::endl; +} + + + +void +QtCommand::printAlgebraicExpression( std::ostream& s ) +{ + s << "command<"; + + switch( command ) + { + case QT_DROP_COLLECTION: s << "drop collection(" << collectionName.c_str() << ")"; break; + case QT_CREATE_COLLECTION: s << "create collection(" << collectionName.c_str() << ", " << typeName.c_str() <<")"; break; + default: s << "unknown"; + } + + s << ">"; +} + + + +void +QtCommand::checkType() +{ + // nothing to do here +} + |