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/*
Ousía
Copyright (C) 2014 Benjamin Paaßen, Andreas Stöckel
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "XmlOutput.hpp"
#include <core/common/Variant.hpp>
#include <core/common/VariantWriter.hpp>
namespace ousia {
namespace xml {
void XmlTransformer::writeXml(Handle<Document> doc, std::ostream &out,
Logger &logger, bool pretty)
{
Manager &mgr = doc->getManager();
// the outermost tag is the document itself.
Rooted<Element> document{new Element{mgr, {nullptr}, "document"}};
// then write imports for all references domains.
for (auto d : doc->getDomains()) {
Rooted<Element> import{
new Element{mgr,
document,
"import",
{{"rel", "domain"}, {"src", d->getName() + ".oxm"}}}};
document->addChild(import);
}
// transform the root element (and, using recursion, everything below it)
Rooted<Element> root =
transformStructuredEntity(document, doc->getRoot(), logger, pretty);
document->addChild(root);
// then serialize.
document->serialize(out, "<?xml version=\"1.0\"?>", pretty);
}
Rooted<Element> XmlTransformer::transformStructuredEntity(
Handle<Element> parent, Handle<StructuredEntity> s, Logger &logger,
bool pretty)
{
Manager &mgr = parent->getManager();
// TODO: Is this the right handling?
// copy the attributes.
Variant attrs = s->getAttributes();
// build them.
s->getDescriptor()->getAttributesDescriptor()->build(attrs, logger);
// get the array representation.
Variant::arrayType attrArr = attrs.asArray();
// transform them to string key-value pairs.
NodeVector<Attribute> as =
s->getDescriptor()->getAttributesDescriptor()->getAttributes();
std::map<std::string, std::string> xmlAttrs;
for (size_t a = 0; a < as.size(); a++) {
xmlAttrs.emplace(as[a]->getName(),
VariantWriter::writeJsonToString(attrArr[a], pretty));
}
// create the XML element itself.
Rooted<Element> elem{
new Element{mgr, parent, s->getDescriptor()->getName(), xmlAttrs}};
// then transform the fields.
NodeVector<FieldDescriptor> fieldDescs =
s->getDescriptor()->getFieldDescriptors();
for (size_t f = 0; f < fieldDescs.size(); f++) {
NodeVector<StructureNode> field = s->getField(f);
Rooted<FieldDescriptor> fieldDesc = fieldDescs[f];
// if this is not the default node create an intermediate node for it.
Rooted<Element> par = elem;
if (fieldDesc->getFieldType() != FieldDescriptor::FieldType::TREE &&
!fieldDesc->isPrimitive()) {
par = Rooted<Element>{new Element(mgr, elem, fieldDesc->getName())};
elem->addChild(par);
}
for (auto c : field) {
// transform each child.
Rooted<Node> child;
if (c->isa(&RttiTypes::StructuredEntity)) {
child = transformStructuredEntity(
par, c.cast<StructuredEntity>(), logger, pretty);
} else if (c->isa(&RttiTypes::DocumentPrimitive)) {
child = transformPrimitive(par, c.cast<DocumentPrimitive>(),
logger, pretty);
}
// TODO: Handle Anchors
if (child != nullptr) {
par->addChild(child);
}
}
}
return elem;
}
Rooted<Text> XmlTransformer::transformPrimitive(Handle<Element> parent,
Handle<DocumentPrimitive> p,
Logger &logger, bool pretty)
{
Manager &mgr = parent->getManager();
// transform the primitive content.
std::string textcontent =
VariantWriter::writeJsonToString(p->getContent(), pretty);
Rooted<Text> text{new Text(mgr, parent, textcontent)};
return text;
}
}
}
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