@Override
public void remove(List<Statement> statements) {
Model graph = null;
GraphConnection graphConnection = null;
try {
graphConnection = openGraph();
graph = graphConnection.getGraph();
graph.enterCriticalSection(Lock.WRITE);
for (Statement nuxStmt : statements) {
com.hp.hpl.jena.graph.Node subject = getJenaNode(nuxStmt.getSubject());
com.hp.hpl.jena.graph.Node predicate = getJenaNode(nuxStmt.getPredicate());
com.hp.hpl.jena.graph.Node object = getJenaNode(nuxStmt.getObject());
Triple jenaTriple = Triple.create(subject, predicate, object);
com.hp.hpl.jena.rdf.model.Statement jenaStmt = graph.asStatement(jenaTriple);
graph.remove(jenaStmt);
// remove properties
RSIterator it = graph.listReifiedStatements(jenaStmt);
while (it.hasNext()) {
ReifiedStatement rs = it.nextRS();
rs.removeProperties();
}
// remove quadlets
graph.removeAllReifications(jenaStmt);
// graph.removeReification(reifiedStmt);
}
} finally {
if (graph != null) {
graph.leaveCriticalSection();
}
if (graphConnection != null) {
graphConnection.close();
}
}
}
@Override
public List<Node> getPredicates(Node subject, Node object) {
Model graph = null;
GraphConnection graphConnection = null;
try {
graphConnection = openGraph();
graph = graphConnection.getGraph();
graph.enterCriticalSection(Lock.READ);
SimpleSelector selector = getJenaSelector(graph, new StatementImpl(subject, null, object));
StmtIterator it = graph.listStatements(selector);
List<Statement> statements = getNXRelationsStatements(graph, it.toList());
List<Node> res = new ArrayList<Node>();
for (Statement stmt : statements) {
Node predicate = stmt.getPredicate();
if (!res.contains(predicate)) {
// remove duplicates
res.add(predicate);
}
}
return res;
} finally {
if (graph != null) {
graph.leaveCriticalSection();
}
if (graphConnection != null) {
graphConnection.close();
}
}
}
@Override
public void deleteRelation(CoreSession session, Statement stmt, boolean includeStatementsInEvents)
throws ClientException {
// notifications
Map<String, Serializable> options = new HashMap<String, Serializable>();
// Find relative document
DocumentModel eventDocument = null;
if (stmt.getSubject() instanceof QNameResource) {
eventDocument =
(DocumentModel)
getRelationManager()
.getResourceRepresentation(
RelationConstants.DOCUMENT_NAMESPACE,
(QNameResource) stmt.getSubject(),
null);
} else if (stmt.getObject() instanceof QNameResource) {
eventDocument =
(DocumentModel)
getRelationManager()
.getResourceRepresentation(
RelationConstants.DOCUMENT_NAMESPACE, (QNameResource) stmt.getObject(), null);
}
// Complete event info and send first event
if (eventDocument != null) {
String currentLifeCycleState = eventDocument.getCurrentLifeCycleState();
options.put(CoreEventConstants.DOC_LIFE_CYCLE, currentLifeCycleState);
options.put(RelationEvents.GRAPH_NAME_EVENT_KEY, RelationConstants.GRAPH_NAME);
if (includeStatementsInEvents) {
putStatements(options, stmt);
}
// before notification
notifyEvent(RelationEvents.BEFORE_RELATION_REMOVAL, eventDocument, options, null, session);
}
// remove statement
getRelationManager().getGraphByName(RelationConstants.GRAPH_NAME).remove(stmt);
if (eventDocument != null) {
// after notification
notifyEvent(RelationEvents.AFTER_RELATION_REMOVAL, eventDocument, options, null, session);
}
}
@Override
public void add(List<Statement> statements) {
Model graph = null;
GraphConnection graphConnection = null;
try {
graphConnection = openGraph();
graph = graphConnection.getGraph();
graph.enterCriticalSection(Lock.WRITE);
for (Statement nuxStmt : statements) {
com.hp.hpl.jena.graph.Node subject = getJenaNode(nuxStmt.getSubject());
com.hp.hpl.jena.graph.Node predicate = getJenaNode(nuxStmt.getPredicate());
com.hp.hpl.jena.graph.Node object = getJenaNode(nuxStmt.getObject());
Triple jenaTriple = Triple.create(subject, predicate, object);
com.hp.hpl.jena.rdf.model.Statement jenaStmt = graph.asStatement(jenaTriple);
// properties
Map<Resource, Node[]> properties = nuxStmt.getProperties();
if (properties == null || properties.isEmpty()) {
// no properties
graph.add(jenaStmt);
} else {
List<com.hp.hpl.jena.rdf.model.Statement> stmts =
new ArrayList<com.hp.hpl.jena.rdf.model.Statement>();
stmts.add(jenaStmt);
// create reified statement if it does not exist
com.hp.hpl.jena.graph.Node reifiedStmt = graph.getAnyReifiedStatement(jenaStmt).asNode();
for (Map.Entry<Resource, Node[]> property : properties.entrySet()) {
com.hp.hpl.jena.graph.Node prop = getJenaNode(property.getKey());
for (Node node : property.getValue()) {
com.hp.hpl.jena.graph.Node value = getJenaNode(node);
Triple propTriple = Triple.create(reifiedStmt, prop, value);
stmts.add(graph.asStatement(propTriple));
}
}
graph.add(stmts);
}
}
} finally {
if (graph != null) {
graph.leaveCriticalSection();
}
if (graphConnection != null) {
graphConnection.close();
}
}
}
/**
* Gets Jena statement selector corresponding to the NXRelations statement.
*
* @param graph the jena graph
* @param nuxStatement NXRelations statement
* @return jena statement selector
*/
private static SimpleSelector getJenaSelector(Model graph, Statement nuxStatement) {
com.hp.hpl.jena.rdf.model.Resource subjResource = null;
com.hp.hpl.jena.graph.Node subject = getJenaNode(nuxStatement.getSubject());
if (subject != null && subject.isURI()) {
subjResource = graph.getResource(subject.getURI());
}
Property predProp = null;
com.hp.hpl.jena.graph.Node predicate = getJenaNode(nuxStatement.getPredicate());
if (predicate != null && predicate.isURI()) {
predProp = graph.getProperty(predicate.getURI());
}
com.hp.hpl.jena.graph.Node object = getJenaNode(nuxStatement.getObject());
RDFNode objRDF = null;
if (object != null) {
objRDF = graph.asRDFNode(object);
}
return new SimpleSelector(subjResource, predProp, objRDF);
}
protected List<StatementInfo> getStatementsInfo(List<Statement> statements)
throws ClientException {
if (statements == null) {
return null;
}
List<StatementInfo> infoList = new ArrayList<StatementInfo>();
for (Statement statement : statements) {
Subject subject = statement.getSubject();
// TODO: filter on doc visibility (?)
NodeInfo subjectInfo = new NodeInfoImpl(subject, getDocumentModel(subject), true);
Resource predicate = statement.getPredicate();
Node object = statement.getObject();
NodeInfo objectInfo = new NodeInfoImpl(object, getDocumentModel(object), true);
StatementInfo info =
new StatementInfoImpl(statement, subjectInfo, new NodeInfoImpl(predicate), objectInfo);
infoList.add(info);
}
return infoList;
}
/**
* Gets NXRelations statement corresponding to the Jena statement.
*
* <p>Reified statements may be retrieved from the Jena graph and set as properties on NXRelations
* statements.
*
* @param graph the jena graph
* @param jenaStatement jena statement
* @return NXRelations statement
*/
private Statement getNXRelationsStatement(
Model graph, com.hp.hpl.jena.rdf.model.Statement jenaStatement) {
Node subject = getNXRelationsNode(jenaStatement.getSubject().asNode());
Node predicate = getNXRelationsNode(jenaStatement.getPredicate().asNode());
Node object = getNXRelationsNode(jenaStatement.getObject().asNode());
Statement statement = new StatementImpl(subject, predicate, object);
// take care of properties
if (graph.isReified(jenaStatement)) {
com.hp.hpl.jena.rdf.model.Resource reifiedStmt = graph.getAnyReifiedStatement(jenaStatement);
StmtIterator it = reifiedStmt.listProperties();
while (it.hasNext()) {
com.hp.hpl.jena.rdf.model.Statement stmt = it.nextStatement();
Node nuxNode = getNXRelationsNode(stmt.getPredicate().asNode());
// ugly cast as a Resource
Node value = getNXRelationsNode(stmt.getObject().asNode());
statement.addProperty((Resource) nuxNode, value);
}
}
return statement;
}
@Override
public void addRelation(
CoreSession session,
DocumentModel from,
Node toResource,
String predicate,
boolean inverse,
boolean includeStatementsInEvents,
String comment)
throws ClientException {
Graph graph = getRelationManager().getGraphByName(RelationConstants.GRAPH_NAME);
QNameResource fromResource = getNodeFromDocumentModel(from);
Resource predicateResource = new ResourceImpl(predicate);
Statement stmt = null;
List<Statement> statements = null;
if (inverse) {
stmt = new StatementImpl(toResource, predicateResource, fromResource);
statements = graph.getStatements(toResource, predicateResource, fromResource);
if (statements != null && statements.size() > 0) {
throw new RelationAlreadyExistsException();
}
} else {
stmt = new StatementImpl(fromResource, predicateResource, toResource);
statements = graph.getStatements(fromResource, predicateResource, toResource);
if (statements != null && statements.size() > 0) {
throw new RelationAlreadyExistsException();
}
}
// Comment ?
if (!StringUtils.isEmpty(comment)) {
stmt.addProperty(RelationConstants.COMMENT, new LiteralImpl(comment));
}
Literal now = RelationDate.getLiteralDate(new Date());
if (stmt.getProperties(RelationConstants.CREATION_DATE) == null) {
stmt.addProperty(RelationConstants.CREATION_DATE, now);
}
if (stmt.getProperties(RelationConstants.MODIFICATION_DATE) == null) {
stmt.addProperty(RelationConstants.MODIFICATION_DATE, now);
}
if (session.getPrincipal() != null && stmt.getProperty(RelationConstants.AUTHOR) != null) {
stmt.addProperty(RelationConstants.AUTHOR, new LiteralImpl(session.getPrincipal().getName()));
}
// notifications
Map<String, Serializable> options = new HashMap<String, Serializable>();
String currentLifeCycleState = from.getCurrentLifeCycleState();
options.put(CoreEventConstants.DOC_LIFE_CYCLE, currentLifeCycleState);
if (includeStatementsInEvents) {
putStatements(options, stmt);
}
options.put(RelationEvents.GRAPH_NAME_EVENT_KEY, RelationConstants.GRAPH_NAME);
// before notification
notifyEvent(RelationEvents.BEFORE_RELATION_CREATION, from, options, comment, session);
// add statement
graph.add(stmt);
// XXX AT: try to refetch it from the graph so that resources are
// transformed into qname resources: useful for indexing
if (includeStatementsInEvents) {
putStatements(options, graph.getStatements(stmt));
}
// after notification
notifyEvent(RelationEvents.AFTER_RELATION_CREATION, from, options, comment, session);
}
// MODIFORI
public String addStatement(DocumentModel currentDoc) throws ClientException {
Resource documentResource = getDocumentResource(currentDoc);
if (documentResource == null) {
throw new ClientException("Document resource could not be retrieved");
}
Resource predicate = new ResourceImpl(predicateUri);
Node object = null;
if (objectType.equals("literal")) {
objectLiteralValue = objectLiteralValue.trim();
object = new LiteralImpl(objectLiteralValue);
} else if (objectType.equals("uri")) {
objectUri = objectUri.trim();
object = new ResourceImpl(objectUri);
} else if (objectType.equals("document")) {
objectDocumentUid = objectDocumentUid.trim();
String repositoryName = navigationContext.getCurrentServerLocation().getName();
String localName = repositoryName + "/" + objectDocumentUid;
object = new QNameResourceImpl(RelationConstants.DOCUMENT_NAMESPACE, localName);
}
// if outgoing statement is null
if (outgoingStatements == null) {
getOutgoingStatementsInfo(currentDoc);
}
// create new statement
Statement stmt = new StatementImpl(documentResource, predicate, object);
if (!outgoingStatements.contains(stmt)) {
// add statement to the graph
List<Statement> stmts = new ArrayList<Statement>();
String eventComment = null;
if (comment != null) {
comment = comment.trim();
if (comment.length() > 0) {
stmt.addProperty(RelationConstants.COMMENT, new LiteralImpl(comment));
eventComment = comment;
}
}
Literal now = RelationDate.getLiteralDate(new Date());
stmt.addProperty(RelationConstants.CREATION_DATE, now);
stmt.addProperty(RelationConstants.MODIFICATION_DATE, now);
if (currentUser != null) {
stmt.addProperty(RelationConstants.AUTHOR, new LiteralImpl(currentUser.getName()));
}
stmts.add(stmt);
// notifications
Map<String, Serializable> options = new HashMap<String, Serializable>();
String currentLifeCycleState = currentDoc.getCurrentLifeCycleState();
options.put(CoreEventConstants.DOC_LIFE_CYCLE, currentLifeCycleState);
if (includeStatementsInEvents) {
putStatements(options, stmt);
}
options.put(RelationEvents.GRAPH_NAME_EVENT_KEY, RelationConstants.GRAPH_NAME);
// before notification
notifyEvent(RelationEvents.BEFORE_RELATION_CREATION, currentDoc, options, eventComment);
// add statement
relationManager.add(RelationConstants.GRAPH_NAME, stmts);
// XXX AT: try to refetch it from the graph so that resources are
// transformed into qname resources: useful for indexing
if (includeStatementsInEvents) {
putStatements(options, relationManager.getStatements(RelationConstants.GRAPH_NAME, stmt));
}
// after notification
notifyEvent(RelationEvents.AFTER_RELATION_CREATION, currentDoc, options, eventComment);
// make sure statements will be recomputed
resetStatements();
// commenté pour ne pas affiché Relation créée qui ne parle pas à l'utilisateur
// facesMessages.add(FacesMessage.SEVERITY_INFO,
// resourcesAccessor.getMessages().get("label.relation.created"));
resetCreateFormValues();
} else {
facesMessages.add(
FacesMessage.SEVERITY_WARN,
resourcesAccessor.getMessages().get("label.relation.already.exists"));
}
return "document_relations";
}
