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/*
* Copyright (C) 2013-2015, 2019 by the Konclude Developer Team.
*
* This file is part of the reasoning system Konclude.
* For details and support, see <http://konclude.com/>.
*
* Konclude is free software: you can redistribute it and/or modify
* it under the terms of version 3 of the GNU Lesser General Public
* License (LGPLv3) as published by the Free Software Foundation.
*
* Konclude 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 (Lesser) General Public License for more details.
*
* You should have received a copy of the GNU (Lesser) General Public
* License along with Konclude. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "CSPARQLQtXMLResultParser.h"
namespace Konclude {
namespace Parser {
CSPARQLQtXMLResultParser::CSPARQLQtXMLResultParser() {
}
CSPARQLQtXMLResultParser::~CSPARQLQtXMLResultParser() {
}
CQueryResult *CSPARQLQtXMLResultParser::parseQueryResult(QDomElement *resultNode) {
QDomElement node = resultNode->firstChildElement();
CQueryResult *queryResult = nullptr;
while (!node.isNull() && !queryResult) {
QString docElemName = node.tagName();
if (docElemName == "results") {
queryResult = parseVariableBindingsSet(&node);
}
}
return queryResult;
}
CVariableBindingsAnswersSetResult* CSPARQLQtXMLResultParser::parseVariableBindingsSet(QDomElement *node, QHash<QString, cint64>* variableNameIndexHash, bool locallyRenameBlankNamesBindings) {
return (CVariableBindingsAnswersSetResult*)parseVariableBindings(node, variableNameIndexHash, locallyRenameBlankNamesBindings, true);
}
CVariableBindingsAnswersListResult* CSPARQLQtXMLResultParser::parseVariableBindingsList(QDomElement *node, QHash<QString, cint64>* variableNameIndexHash, bool locallyRenameBlankNamesBindings) {
return (CVariableBindingsAnswersListResult*)parseVariableBindings(node, variableNameIndexHash, locallyRenameBlankNamesBindings, false);
}
CVariableBindingsAnswersResult* CSPARQLQtXMLResultParser::parseVariableBindings(QDomElement *node, QHash<QString, cint64>* variableNameIndexHash, bool locallyRenameBlankNamesBindings, bool parseAsSet) {
QStringList classNameList;
bool err = node->isNull();
QString tagName = node->tagName();
CVariableBindingsAnswersResult* bindingAnswersResult = nullptr;
QStringList variableNameList;
cint64 nextVariableIndex = 0;
QHash<QString, cint64>* deleteVariableNameIndexHash = nullptr;
if (!variableNameIndexHash) {
deleteVariableNameIndexHash = variableNameIndexHash = new QHash<QString, cint64>();
}
QDomElement resultNode = node->firstChildElement();
while (!resultNode.isNull()) {
if (resultNode.tagName() == "result") {
CVariableBindingsListAnswerResult* bindingResult = new CVariableBindingsListAnswerResult();
QVector<CVariableBindingResult*> bindingsVector(nextVariableIndex);
QDomElement bindingNode = resultNode.firstChildElement();
while (!bindingNode.isNull()) {
if (bindingNode.tagName() == "binding") {
QString variableName = bindingNode.attribute("name");
if (!variableName.isEmpty()) {
if (!variableNameIndexHash->contains(variableName)) {
variableNameIndexHash->insert(variableName, nextVariableIndex++);
variableNameList.append(variableName);
}
cint64 index = variableNameIndexHash->value(variableName);
if (index >= bindingsVector.size()) {
bindingsVector.resize(index + 1);
}
QDomElement boundNode = bindingNode.firstChildElement();
while (!boundNode.isNull()) {
if (boundNode.tagName() == "uri") {
QString uri = boundNode.text();
CVariableBindingResult* varBindingResult = new CVariableBindingStringResult(uri, CVariableBindingResult::VBTNAMEDINDIVIDUAL);
bindingsVector[index] = varBindingResult;
} else if (boundNode.tagName() == "literal") {
QString lexicalValue = boundNode.text();
QString datatypeIRI = boundNode.attribute("datatypeIRI", PREFIX_XML_PLAINLITERAL_DATATYPE);
CVariableBindingResult* varBindingResult = new CVariableBindingStringResult("\"" + lexicalValue + "\"^^" + datatypeIRI, CVariableBindingResult::VBTLITERAL);
bindingsVector[index] = varBindingResult;
} else if (boundNode.tagName() == "bnode") {
QString bname = boundNode.text();
if (locallyRenameBlankNamesBindings) {
bname = variableName + "_bound_blank_node";
}
CVariableBindingResult* varBindingResult = new CVariableBindingStringResult(bname, CVariableBindingResult::VBTANONYMOUSINDIVIDUAL);
bindingsVector[index] = varBindingResult;
}
boundNode = boundNode.nextSiblingElement();
}
}
}
bindingNode = bindingNode.nextSiblingElement();
}
if (bindingsVector.count() > 0) {
bindingResult->setResultVariableBindings(bindingsVector.toList());
if (!bindingAnswersResult) {
if (parseAsSet) {
bindingAnswersResult = new CVariableBindingsAnswersSetResult(variableNameList);
} else {
bindingAnswersResult = new CVariableBindingsAnswersListResult(variableNameList);
}
}
bindingAnswersResult->addResultVariableBindings(bindingResult);
}
}
resultNode = resultNode.nextSiblingElement();
}
if (!bindingAnswersResult) {
if (parseAsSet) {
bindingAnswersResult = new CVariableBindingsAnswersSetResult(QStringList());
} else {
bindingAnswersResult = new CVariableBindingsAnswersListResult(QStringList());
}
}
if (deleteVariableNameIndexHash) {
delete deleteVariableNameIndexHash;
}
return bindingAnswersResult;
}
}; // end namespace Parser
}; // end namespace Konclude
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