/*
*get collaboration information based on organisation - returns a collaborationList.
*/
public HashMap<Integer, CollaborationList> getCollaborations_org(
String id, TreeMap<Integer, Collaborator> network) {
HashMap<Integer, CollaborationList> collaborations =
new java.util.HashMap<Integer, CollaborationList>();
// reset the iterator
Set<Integer> networkKeys = network.keySet();
Iterator<Integer> networkKeyIterator = networkKeys.iterator();
Integer networkKey = null;
CollaborationList collaborationList;
// loop through the list of keys
while (networkKeyIterator.hasNext()) {
// get the key
networkKey = (Integer) networkKeyIterator.next();
// get the list of collaborations for this user
collaborationList = getCollaborationList_org(id, networkKey.toString());
// add the collaborationList object to the list
collaborations.put(networkKey, collaborationList);
}
return collaborations;
}
/**
* Returns the string value of the first of the properties in the uriDescriptionList for the given
* resource (as an URI). In case the resource does not have any of the properties mentioned, its
* URI is returned. The value is obtained by querying the endpoint and the endpoint is queried
* repeatedly until it gives a response (value or the lack of it)
*
* <p>It is highly recommended that the list contains properties like labels or titles, with test
* values.
*
* @param uri - the URI for which a label is required
* @return a String value, either a label for the parameter or its value if no label is obtained
* from the endpoint
*/
private String getLabelForUri(String uri) {
String result;
if (uriLabelCache.containsKey(uri)) {
return uriLabelCache.get(uri);
}
for (String prop : uriDescriptionList) {
String innerQuery = "SELECT ?r WHERE {<" + uri + "> <" + prop + "> ?r } LIMIT 1";
try {
Query query = QueryFactory.create(innerQuery);
QueryExecution qExec = QueryExecutionFactory.sparqlService(rdfEndpoint, query);
boolean keepTrying = true;
while (keepTrying) {
keepTrying = false;
try {
ResultSet results = qExec.execSelect();
if (results.hasNext()) {
QuerySolution sol = results.nextSolution();
result = EEASettings.parseForJson(sol.getLiteral("r").getLexicalForm());
if (!result.isEmpty()) {
uriLabelCache.put(uri, result);
return result;
}
}
} catch (Exception e) {
keepTrying = true;
logger.warn("Could not get label for uri {}. Retrying.", uri);
} finally {
qExec.close();
}
}
} catch (QueryParseException qpe) {
logger.error("Exception for query {}. The label cannot be obtained", innerQuery);
}
}
return uri;
}
