File indexing completed on 2023-09-24 04:15:36

 /*
     This file is part of the syndication library
     SPDX-FileCopyrightText: 2006 Frank Osterfeld <osterfeld@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "resource.h"
 #include "model.h"
 #include "model_p.h"
 #include "nodevisitor.h"
 #include "property.h"
 #include "statement.h"
 
 #include <QList>
 #include <QString>
 #include <QUuid>
 #include <QWeakPointer>
 
 namespace Syndication
 {
 namespace RDF
 {
 class SYNDICATION_NO_EXPORT Resource::ResourcePrivate
 {
 public:
     QString uri;
     QWeakPointer<Model::ModelPrivate> model;
     bool isAnon;
     unsigned int id;
 
     bool operator==(const ResourcePrivate &other) const
     {
         if (!isAnon && !other.isAnon) {
             return uri == other.uri;
         } else {
             return id == other.id;
         }
     }
 };
 
 Resource::Resource(const Resource &other)
     : Node(other)
 {
     *this = other;
 }
 
 Resource::Resource()
     : d()
 {
 }
 
 Resource::Resource(const QString &uri)
     : d(new ResourcePrivate)
 {
     if (uri.isNull()) {
         d->uri = QUuid().createUuid().toString();
         d->isAnon = true;
     } else {
         d->uri = uri;
         d->isAnon = false;
     }
 
     d->id = idCounter++;
 }
 
 Resource::~Resource()
 {
 }
 
 Resource &Resource::operator=(const Resource &other)
 {
     d = other.d;
     return *this;
 }
 
 bool Resource::operator==(const Node &other) const
 {
     const Resource *o2 = dynamic_cast<const Resource *>(&other);
     if (!o2) {
         return false;
     }
 
     if (!d || !o2->d) {
         return d == o2->d;
     }
     return *d == *(o2->d);
 }
 
 bool Resource::hasProperty(PropertyPtr property) const
 {
     if (!d) {
         return false;
     }
     const QSharedPointer<Model::ModelPrivate> m = d->model.toStrongRef();
     if (!m) {
         return false;
     }
     return m->resourceHasProperty(this, property);
 }
 
 StatementPtr Resource::property(PropertyPtr property) const
 {
     StatementPtr ptr(new Statement());
     if (!d) {
         return ptr;
     }
     const QSharedPointer<Model::ModelPrivate> m = d->model.toStrongRef();
     if (!m) {
         return ptr;
     }
     return m->resourceProperty(this, property);
 }
 
 QList<StatementPtr> Resource::properties(PropertyPtr property) const
 {
     if (!d) {
         return QList<StatementPtr>();
     }
     const QSharedPointer<Model::ModelPrivate> m = d->model.toStrongRef();
     if (!m) {
         return QList<StatementPtr>();
     }
 
     return m->resourceProperties(this, property);
 }
 
 Resource *Resource::clone() const
 {
     return new Resource(*this);
 }
 
 void Resource::accept(NodeVisitor *visitor, NodePtr ptr)
 {
     ResourcePtr rptr = ptr.staticCast<Resource>();
     if (!visitor->visitResource(rptr)) {
         Node::accept(visitor, ptr);
     }
 }
 
 unsigned int Resource::id() const
 {
     return d ? d->id : 0;
 }
 
 bool Resource::isNull() const
 {
     return !d;
 }
 
 Model Resource::model() const
 {
     if (!d) {
         return Model();
     }
 
     const QSharedPointer<Model::ModelPrivate> mp = d->model.toStrongRef();
 
     Model m;
 
     if (mp) {
         m.d = mp;
     }
 
     return m;
 }
 
 bool Resource::isResource() const
 {
     return true;
 }
 
 bool Resource::isProperty() const
 {
     return false;
 }
 
 bool Resource::isLiteral() const
 {
     return false;
 }
 
 bool Resource::isAnon() const
 {
     return d ? d->isAnon : false;
 }
 
 bool Resource::isSequence() const
 {
     return false;
 }
 
 void Resource::setModel(const Model &model)
 {
     if (d) {
         d->model = model.d;
     }
 }
 
 void Resource::setId(unsigned int id)
 {
     if (d) {
         d->id = id;
     }
 }
 
 QString Resource::text() const
 {
     return QString();
 }
 
 QString Resource::uri() const
 {
     return d ? d->uri : QString();
 }
 
 } // namespace RDF
 } // namespace Syndication