/**
* Copyright (c) 2013/2014 Verein zur Foerderung der IT-Sicherheit in Oesterreich (SBA).
* The work has been developed in the TIMBUS Project and the above-mentioned are Members of the TIMBUS Consortium.
* TIMBUS is supported by the European Union under the 7th Framework Programme for research and technological
* development and demonstration activities (FP7/2007-2013) under grant agreement no. 269940.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including without
* limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTIBITLY, or FITNESS FOR A PARTICULAR
* PURPOSE. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise,
* unless required by applicable law or agreed to in writing, shall any Contributor be liable for damages, including
* any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this
* License or out of the use or inability to use the Work.
* See the License for the specific language governing permissions and limitation under the License.
*/
package net.timbusproject.dpes.alternative.AlternativesBuilder;
import net.timbusproject.dpes.alternative.PreservationAlternative;
import net.timbusproject.dpes.alternative.Risk;
import net.timbusproject.dpes.alternative.kb.PackageKnowledgeBase;
import org.sbaresearch.owl.*;
import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.OWLOntologyCreationException;
import org.semanticweb.owlapi.model.OWLOntologyStorageException;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* @author Rudolf Mayer
*/
public class PackageAlternativesBuilder implements PreservationAlternativesBuilder {
private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(PackageAlternativesBuilder.class);
private final PackageKnowledgeBase knowledgeBase;
private final String baseURL;
private final OwlApiFacade originalModelFacade;
private final String identifier;
public PackageAlternativesBuilder(PackageKnowledgeBase packageKnowledgeBase, String baseURL, OwlApiFacade originalModelFacade, String identifier) {
this.knowledgeBase = packageKnowledgeBase;
this.baseURL = baseURL;
this.originalModelFacade = originalModelFacade;
this.identifier = identifier;
}
@Override
public List<PreservationAlternative> createAlternatives(Risk identifiedRisk, IRI individualAtRisk) throws OWLOntologyStorageException,
OWLOntologyCreationException, IOException, OwlElementNotFoundException {
LOG.info("Searching for package alternatives...");
List<PreservationAlternative> alternatives = new ArrayList<>();
String affectedResourceName = identifiedRisk.getAffectedResource();
ChangesOntologyBuilder changesOntologyBuilder = new ChangesOntologyBuilder(
originalModelFacade.getOntology(), originalModelFacade.getIndividual(individualAtRisk.toString()), "SoftwareReplacement");
String packageName = AlternativesBuilderHelper.getFragmentOfResource(originalModelFacade, affectedResourceName);
// 1. Get virtual package(s) that are provided by this package
// 1.a. get them directly from the model; this is the prefered way
LOG.info("Getting directly provided virtual packages for package: " + packageName);
// TODO: query which virtual package is directly providedBy this package (or which virtual package is provides by package)
PackageKnowledgeBase pkb = new PackageKnowledgeBase(new JenaQueryFacade(originalModelFacade.getJenaModel(false)));
List<String> virtualPackages = pkb.getVirtualPackages(individualAtRisk.toString());
List<String> alternativePackages = new ArrayList<>();
if (virtualPackages.size() > 0) {
LOG.info("Found virtual packages for the individual at risk in the model, using those to retrieve alternatives.");
for (String virtualPackageName : virtualPackages) {
LOG.info("Getting alternatives for package: " + packageName + " / " + virtualPackageName);
alternativePackages.addAll(knowledgeBase.getAlternativePackages(affectedResourceName, virtualPackageName));
}
} else {
LOG.info("No virtual package for the individual at risk found, using all available virtual packages.");
String affectedResourceFragment = AlternativesBuilderHelper.getFragmentOfResource(originalModelFacade, affectedResourceName);
alternativePackages.addAll(knowledgeBase.getAlternativePackages(affectedResourceFragment));
}
for (int i = 0; i < alternativePackages.size(); ++i) {
LOG.info("Replacing identified software " + affectedResourceName);
String alternativeOntologyIri = AlternativesBuilderHelper.createIriFragment(baseURL, identifier, identifiedRisk, i);
String iriSuffix = identifier + "/" + i;
alternatives.add(AlternativesBuilderHelper.createAlternativeOntology(originalModelFacade.getOntology(), identifiedRisk,
individualAtRisk, alternativePackages.get(i), alternativeOntologyIri, changesOntologyBuilder, iriSuffix));
}
return alternatives;
}
}