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/**
* MIT License
*
* Copyright (c) 2016 Bouw Informatie Raad
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
**/
package nl.coinsweb.sdk.injectors;
import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.graph.Triple;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.rdf.model.impl.PropertyImpl;
import com.hp.hpl.jena.rdf.model.impl.ResourceImpl;
import com.hp.hpl.jena.util.iterator.ExtendedIterator;
import nl.coinsweb.sdk.CoinsModel;
import nl.coinsweb.sdk.exceptions.AttachmentNotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Bastiaan Bijl, Sysunite 2016
*/
public class AttachmentInjector implements Injector {
protected static final Logger log = LoggerFactory.getLogger(AttachmentInjector.class);
@Override
public boolean proposeRead(CoinsModel model, String subject) {
return true;
}
@Override
public boolean proposeRead(CoinsModel model, String subject, String predicate) {
return true;
}
@Override
public boolean proposeWrite(CoinsModel model, String subject, String predicate, String object) {
// When proposing a remove, always allow
if(object == null) {
return true;
}
// Allow anything other than filePath relationship
if(!"http://www.coinsweb.nl/cbim-2.0.rdf#filePath".equals(predicate)) {
return true;
} else {
ExtendedIterator iterator = ((OntModel) model.getCoinsGraphSet().getInstanceOntModel()).getGraph().find(
new ResourceImpl(object).asNode(),
new PropertyImpl("http://www.coinsweb.nl/cbim-2.0.rdf#datatypeValue").asNode(),
Node.ANY);
if(iterator.hasNext()) {
Triple triple = iterator.next();
Node filePath = triple.getObject();
if (filePath.isLiteral()) {
String filePathString = filePath.getLiteral().getLexicalForm();
if(!model.getCoinsContainer().getAttachments().contains(filePathString)) {
throw new AttachmentNotFoundException("Adding file " + filePathString + " not found as Attachment, not connecting (instance Model now contains an orphaned String property).");
}
log.info("Request adding file "+filePathString + ", found!");
return true;
}
}
throw new AttachmentNotFoundException("Not clear which filename is being added.");
}
}
}
