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NIHVIVO-1585 Gerhard's improvements to workflow processing

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This commit is contained in:
bjl23 2011-01-14 16:11:10 +00:00
parent eae3203b45
commit f45eafa3f4
2 changed files with 43 additions and 18 deletions
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59
webapp/src/edu/cornell/mannlib/vitro/webapp/utils/jena/JenaIngestWorkflowProcessor.java
View file

@ -67,7 +67,7 @@ public class JenaIngestWorkflowProcessor {
public void run(Individual startingWorkflowStep) {
for (Individual step : getWorkflowSteps(startingWorkflowStep)) {
Individual action = getAction(step);
System.out.println("Executing action "+action.getURI());
log.debug("Executing workflow action "+action.getURI());
for (ActionHandler handler : actionHandlerList) {
ActionResult result = handler.handleAction(action);
if (result != null) {
@ -81,7 +81,7 @@ public class JenaIngestWorkflowProcessor {
* returns the Action related to the supplied WorkflowStep
*/
private Individual getAction(Individual stepInd) {
System.out.println("Workflow step: "+stepInd.getURI());
log.debug("Workflow step: "+stepInd.getURI());
RDFNode actionNode = stepInd.getPropertyValue(WorkflowOntology.action);
if (actionNode != null && actionNode.canAs(Individual.class)) {
return (Individual) actionNode.as(Individual.class);
@ -146,9 +146,11 @@ public class JenaIngestWorkflowProcessor {
* returns the model represented by the given Node, which is expected to be an Individual of type Model
*/
private Model getModel(RDFNode modelNode) {
if (modelNode == null) {
return null;
}
Individual modelInd = (Individual) modelNode.as(Individual.class);
String modelNameStr = ((Literal)modelInd.getPropertyValue(WorkflowOntology.modelName).as(Literal.class)).getLexicalForm();
System.out.println("Trying to get model "+modelNameStr);
// false = strict mode off, i.e.,
// if a model already exists of the given name, return it. Otherwise, create a new one.
return vitroJenaModelMaker.createModel(modelNameStr,false);
@ -187,16 +189,27 @@ public class JenaIngestWorkflowProcessor {
Model sourceModel = getModel(actionInd.getPropertyValue(WorkflowOntology.sourceModel));
Model modelToAdd = getModel(actionInd.getPropertyValue(WorkflowOntology.modelToAdd));
Model destinationModel = getModel(actionInd.getPropertyValue(WorkflowOntology.destinationModel));
Boolean applyChangesDirectlyToSource = false;
RDFNode valueNode = actionInd.getPropertyValue(WorkflowOntology.applyChangesDirectlyToSource);
if ((valueNode != null) && (valueNode.isLiteral())) {
applyChangesDirectlyToSource = ((Literal)valueNode.as(Literal.class)).getBoolean();
}
sourceModel.enterCriticalSection(Lock.WRITE);
try {
modelToAdd.enterCriticalSection(Lock.READ);
try {
destinationModel.enterCriticalSection(Lock.WRITE);
try{
destinationModel.add(modelToAdd);
} finally {
destinationModel.leaveCriticalSection();
}
if (applyChangesDirectlyToSource) {
// TODO: are all listeners notified this way?
sourceModel.add(modelToAdd);
} else {
destinationModel.enterCriticalSection(Lock.WRITE);
try{
destinationModel.add(modelToAdd);
} finally {
destinationModel.leaveCriticalSection();
}
}
} finally {
modelToAdd.leaveCriticalSection();
}
@ -216,16 +229,26 @@ public class JenaIngestWorkflowProcessor {
Model sourceModel = getModel(actionInd.getPropertyValue(WorkflowOntology.sourceModel));
Model modelToSubtract = getModel(actionInd.getPropertyValue(WorkflowOntology.modelToSubtract));
Model destinationModel = getModel(actionInd.getPropertyValue(WorkflowOntology.destinationModel));
Boolean applyChangesDirectlyToSource = false;
RDFNode valueNode = actionInd.getPropertyValue(WorkflowOntology.applyChangesDirectlyToSource);
if ((valueNode != null) && (valueNode.isLiteral())) {
applyChangesDirectlyToSource = ((Literal)valueNode.as(Literal.class)).getBoolean();
}
sourceModel.enterCriticalSection(Lock.WRITE);
try {
modelToSubtract.enterCriticalSection(Lock.READ);
try {
destinationModel.enterCriticalSection(Lock.WRITE);
try{
destinationModel.add(sourceModel.difference(modelToSubtract));
} finally {
destinationModel.leaveCriticalSection();
}
if (applyChangesDirectlyToSource) {
// TODO: are all listeners notified this way?
sourceModel.remove(modelToSubtract);
} else {
destinationModel.enterCriticalSection(Lock.WRITE);
try{
destinationModel.add(sourceModel.difference(modelToSubtract));
} finally {
destinationModel.leaveCriticalSection();
}
}
} finally {
modelToSubtract.leaveCriticalSection();
}
@ -247,18 +270,18 @@ public class JenaIngestWorkflowProcessor {
if (instanceOf(actionInd,WorkflowOntology.SPARQLCONSTRUCTAction)) {
OntModel sourceModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
for (RDFNode node : (List<RDFNode>) actionInd.listPropertyValues(WorkflowOntology.sourceModel).toList()) {
System.out.println("SPARQL: adding submodel ");
log.debug("SPARQL: adding submodel ");
sourceModel.addSubModel(getModel(node));
}
if (actionInd.getPropertyValue(WorkflowOntology.destinationModel) == null) {
System.out.println("Error: destination model for SPARQL Construct action not specified for this action");
log.debug("Error: destination model for SPARQL Construct action not specified for this action");
return null;
}
Model destinationModel = getModel(actionInd.getPropertyValue(WorkflowOntology.destinationModel));
Model tempModel = ModelFactory.createDefaultModel();
OntResource sparqlQuery = (OntResource) actionInd.getPropertyValue(WorkflowOntology.sparqlQuery);
String queryStr = ((Literal)sparqlQuery.getPropertyValue(ResourceFactory.createProperty(QUERY_STR_PROPERTY))).getLexicalForm();
System.out.println(queryStr);
log.debug("SPARQL query: \n" + queryStr);
Query query = QueryFactory.create(queryStr,Syntax.syntaxARQ);
QueryExecution qexec = QueryExecutionFactory.create(query,sourceModel);
qexec.execConstruct(tempModel);

2
webapp/src/edu/cornell/mannlib/vitro/webapp/utils/jena/WorkflowOntology.java
View file

@ -82,6 +82,8 @@ public class WorkflowOntology {
public static final ObjectProperty previousStep = m_model.createObjectProperty( "http://vitro.mannlib.cornell.edu/ns/vitro/rdfIngestWorkflow#previousStep" );
public static final ObjectProperty addedInAction = m_model.createObjectProperty( "http://vitro.mannlib.cornell.edu/ns/vitro/rdfIngestWorkflow#addedInAction" );
public static final ObjectProperty subtractedInAction = m_model.createObjectProperty( "http://vitro.mannlib.cornell.edu/ns/vitro/rdfIngestWorkflow#subtractedInAction" );
public static final ObjectProperty nextStep = m_model.createObjectProperty( "http://vitro.mannlib.cornell.edu/ns/vitro/rdfIngestWorkflow#nextStep" );