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Adding N3EditUtils and NewURIMaker

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briancaruso 2011-11-09 23:25:19 +00:00
parent bf940b59da
commit 45556a41c2
2 changed files with 129 additions and 0 deletions
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109
webapp/src/edu/cornell/mannlib/vitro/webapp/edit/n3editing/VTwo/N3EditUtils.java Normal file
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/* $This file is distributed under the terms of the license in /doc/license.txt$ */
package edu.cornell.mannlib.vitro.webapp.edit.n3editing.VTwo;
import java.util.ArrayList;
import java.util.List;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.rdf.model.Literal;
import edu.cornell.mannlib.vitro.webapp.beans.DataPropertyStatement;
import edu.cornell.mannlib.vitro.webapp.beans.DataPropertyStatementImpl;
import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
import edu.cornell.mannlib.vitro.webapp.edit.n3editing.configuration.preprocessors.ModelChangePreprocessor;
import edu.cornell.mannlib.vitro.webapp.edit.n3editing.processEdit.RdfLiteralHash;
public class N3EditUtils {
/**
* Execute any modelChangePreprocessors in the editConfiguration;
* TODO: Should be moved to Utils or Controller
*/
public static void preprocessModels(
AdditionsAndRetractions changes,
EditConfigurationVTwo editConfiguration,
VitroRequest request){
List<ModelChangePreprocessor> modelChangePreprocessors = editConfiguration.getModelChangePreprocessors();
if ( modelChangePreprocessors != null ) {
for ( ModelChangePreprocessor pp : modelChangePreprocessors ) {
//these work by side effect
pp.preprocess( changes.getRetractions(), changes.getAdditions(), request );
}
}
}
/** Process Entity to Return to - substituting uris etc. */
//TODO: move this to utils or contorller
public static String processEntityToReturnTo(EditConfigurationVTwo configuration,
MultiValueEditSubmission submission, VitroRequest vreq) {
List<String> entityToReturnTo = new ArrayList<String>();
String entity = configuration.getEntityToReturnTo();
entityToReturnTo.add(entity);
//Substitute uris and literals on form
//Substitute uris and literals in scope
//Substite var to new resource
EditN3GeneratorVTwo n3Subber = configuration.getN3Generator();
//Substitute URIs and literals from form
entityToReturnTo = n3Subber.subInMultiUris(submission.getUrisFromForm(), entityToReturnTo);
entityToReturnTo = n3Subber.subInMultiLiterals(submission.getLiteralsFromForm(), entityToReturnTo);
//TODO: this won't work, must the same new resources as in ProcessRdfForm.process
//setVarToNewResource(configuration, vreq);
//entityToReturnTo = n3Subber.subInMultiUris(varToNewResource, entityToReturnTo);
String processedEntity = entityToReturnTo.get(0);
if(processedEntity != null) {
processedEntity = processedEntity.trim().replaceAll("<","").replaceAll(">","");
}
return processedEntity;
}
/**
* If the edit was a data property statement edit, then this updates the EditConfiguration to
* be an edit of the new post-edit statement. This allows a back button to the form to get the
* edit key and be associated with the new edit state.
* TODO: move this to utils
*/
public static void updateEditConfigurationForBackButton(
EditConfigurationVTwo editConfig,
MultiValueEditSubmission submission,
VitroRequest vreq,
OntModel writeModel) {
//now setup an EditConfiguration so a single back button submissions can be handled
//Do this if data property
if(EditConfigurationUtils.isDataProperty(editConfig.getPredicateUri(), vreq)) {
EditConfigurationVTwo copy = editConfig.copy();
//need a new DataPropHash and a new editConfig that uses that, and replace
//the editConfig used for this submission in the session. The same thing
//is done for an update or a new insert since it will convert the insert
//EditConfig into an update EditConfig.
FieldVTwo dataField = copy.getField(copy.getVarNameForObject());
DataPropertyStatement dps = new DataPropertyStatementImpl();
List<Literal> submitted = submission.getLiteralsFromForm().get(copy.getVarNameForObject());
if( submitted != null && submitted.size() > 0){
for(Literal submittedLiteral: submitted) {
dps.setIndividualURI( copy.getSubjectUri() );
dps.setDatapropURI( copy.getPredicateUri() );
dps.setDatatypeURI( submittedLiteral.getDatatypeURI());
dps.setLanguage( submittedLiteral.getLanguage() );
dps.setData( submittedLiteral.getLexicalForm() );
copy.prepareForDataPropUpdate(writeModel, dps);
copy.setDatapropKey( Integer.toString(RdfLiteralHash.makeRdfLiteralHash(dps)) );
}
EditConfigurationVTwo.putConfigInSession(copy,vreq.getSession());
}
}
}
}

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webapp/src/edu/cornell/mannlib/vitro/webapp/edit/n3editing/VTwo/NewURIMaker.java Normal file
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/* $This file is distributed under the terms of the license in /doc/license.txt$ */
package edu.cornell.mannlib.vitro.webapp.edit.n3editing.VTwo;
import edu.cornell.mannlib.vitro.webapp.dao.InsertException;
/**
* Interface for an object that returns a new, unused URI,
* in the default namespace or in a specified namespace.
*
*/
public interface NewURIMaker {
/**
* @param prefixURI - may be null, the use the default namespace. If it is
* not null, then it is used as prefix of the new URI, a random integer may be added.
* @return a URI that is not currently in use by the system.
* @throws InsertException
*/
String getUnusedNewURI( String prefixURI ) throws InsertException;
}