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Diffstat (limited to 'qlparser/qtiterator.cc')
| -rw-r--r-- | qlparser/qtiterator.cc | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/qlparser/qtiterator.cc b/qlparser/qtiterator.cc new file mode 100644 index 0000000..ef0615f --- /dev/null +++ b/qlparser/qtiterator.cc @@ -0,0 +1,260 @@ +/* +* 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, QtIterator: $Id: qtiterator.cc,v 1.20 2001/08/14 10:48:17 rastest Exp $"; + +#include "qlparser/qtiterator.hh" +#include <iostream> +#ifndef CPPSTDLIB +#include <ospace/string.h> // STL<ToolKit> +#else +#include <string> +using namespace std; +#endif + +const QtNode::QtNodeType QtIterator::nodeType = QtNode::QT_ITERATOR; + +QtIterator::QtIterator() + : QtONCStream(), + inputs(NULL) +{ +} + + +QtIterator::QtIterator( QtNode* node ) + : QtONCStream( node ), + inputs(NULL) +{ +} + + +QtIterator::~QtIterator() +{ + if( inputs ) + { + // delete the inputs + for( int i=0; i<inputs->size(); i++ ) + { + delete (*inputs)[i]; + (*inputs)[i] = NULL; + } + + // delete the list + delete inputs; + inputs=NULL; + } +} + + +QtNode::QtNodeList* +QtIterator::getChilds( QtChildType flag ) +{ + QtNodeList* resultList=NULL; + list<QtNode*>::iterator it; //default + QtNode::QtNodeList::iterator iter; + + RMDBCLASS( "QtIterator", "getChilds( QtChildType )", "qlparser", __FILE__, __LINE__ ) + + // allocate resultList + resultList = new QtNodeList(); + + if( flag == QT_LEAF_NODES || flag == QT_ALL_NODES ) + { + for(int i=0; i<inputs->size(); i++ ) + { + QtNodeList* subList=NULL; + subList = (*inputs)[i]->getChilds( flag ); + // remove all elements in subList and insert them at the beginning in resultList + resultList->splice( resultList->begin(), *subList ); + // delete temporary subList + delete subList; + subList=NULL; + }; + }; + + // add the nodes of the current level + if( flag == QT_DIRECT_CHILDS || flag == QT_ALL_NODES ) + for(int i=0; i<inputs->size(); i++ ) + resultList->push_back( (*inputs)[i] ); + + return resultList; +} + + +void +QtIterator::open() +{ + RMDBCLASS( "QtIterator", "open()", "qlparser", __FILE__, __LINE__ ) + + if( inputs ) + { + QtONCStreamList::iterator i; + + for( i=inputs->begin(); i!=inputs->end(); i++ ) + (*i)->open(); + } +} + + +void +QtIterator::close() +{ + RMDBCLASS( "QtIterator", "close()", "qlparser", __FILE__, __LINE__ ) + + if( inputs ) + { + QtONCStreamList::iterator i; + + for( i=inputs->begin(); i!=inputs->end(); i++ ) + (*i)->close(); + } +} + + +void +QtIterator::reset() +{ + if( inputs ) + { + QtONCStreamList::iterator i; + + for( i=inputs->begin(); i!=inputs->end(); i++ ) + (*i)->reset(); + } +} + + +void +QtIterator::printTree( int tab, ostream& s, QtChildType mode ) +{ + if( mode != QtNode::QT_DIRECT_CHILDS ) + { + if( inputs ) + for( int i=0; i<inputs->size(); i++ ) + { + s << SPACE_STR(tab).c_str() << "input " << i+1 << ": " << endl; + (*inputs)[i]->printTree( tab+2, s, mode ); + } + else + s << SPACE_STR(tab).c_str() << "no inputs" << endl; + + s << endl; + } +} + + + +void +QtIterator::printAlgebraicExpression( ostream& s ) +{ + if( inputs ) + { + s << "( "; + + for( int i=0; i<inputs->size(); i++ ) + { + (*inputs)[i]->printAlgebraicExpression( s ); + + if( i < inputs->size()-1 ) + s << ", "; + } + + s << " )"; + } + else + s << "(<no input>)"; +} + + + +void +QtIterator::setStreamInput( QtONCStream* oldInput, QtONCStream* newInput ) +{ + QtONCStreamList::iterator iter; + bool notDone=true; + + for( iter=inputs->begin(); iter!=inputs->end() && notDone; iter++ ) + if( *iter && (*iter) == oldInput ) + { + *iter = newInput; + if( newInput ) + newInput->setParent( this ); + + notDone = false; + } + + if( notDone ) + RMInit::logOut << "QtIterator::setStreamInput() - Error: Old input stream not found." << endl; +} + +QtIterator::QtONCStreamList* +QtIterator::getStreamInputs() +{ + return inputs; +} + +/* +void +QtIterator::preOptimize() +{ + if( inputs ) + { + QtONCStreamList::iterator i; + + for( i=inputs->begin(); i!=inputs->end(); i++ ) + (*i)->preOptimize(); + } +} +*/ + + +void +QtIterator::getInputTypeTuple( QtTypeTuple& typeTuple ) +{ + typeTuple = QtTypeTuple(0); + + if( inputs ) + { + QtONCStreamList::iterator inputIter; + + for( inputIter=inputs->begin(); inputIter!=inputs->end(); inputIter++ ) + { + if( *inputIter ) + typeTuple.concat( (*inputIter)->checkType() ); + else + RMInit::logOut << "Error: QtIterator::getInputTypeTuple() - input branch is invalid." << endl; + } + } + else + RMInit::logOut << "Error: QtIterator::getInputTypeTuple() - inputs branch is invalid." << endl; +} + |