/**
* ensure that the query object has a Id set. If none is provided by the client create one using
* the pipeline name as source and a random {@link UUID} as key.
*
* @param workflowName pipeline name
* @param query query recurd.
*/
private void ensureQueryId(final String workflowName, final Record query) {
if (query.getId() == null) {
UUID uuid = null;
synchronized (this) {
uuid = UUID.randomUUID();
}
final Id id = IdFactory.DEFAULT_INSTANCE.createId(workflowName, uuid.toString());
query.setId(id);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.smila.search.api.SearchService#search(java.lang.String,
* org.eclipse.smila.datamodel.record.Record)
*/
public SearchResult search(final String workflowName, final Record query)
throws ProcessingException {
try {
final long starttime = System.nanoTime();
ensureQueryId(workflowName, query);
final SearchResultImpl result = new SearchResultImpl(workflowName, query);
final Blackboard blackboard = _blackboardFactory.createTransientBlackboard();
blackboard.setRecord(query);
SearchMessage message = new SearchMessage(query.getId(), null);
message = _processor.process(workflowName, blackboard, message);
if (message.hasQuery()) {
result.setQuery(blackboard.getRecord(message.getQuery()));
}
if (message.hasRecords()) {
final Id[] ids = message.getRecords();
final Record[] records = new Record[ids.length];
for (int i = 0; i < ids.length; i++) {
records[i] = blackboard.getRecord(ids[i]);
}
result.setRecords(records);
}
final long endtime = System.nanoTime();
setRuntime(blackboard, message.getQuery(), (endtime - starttime));
blackboard.invalidate();
return result;
} catch (final BlackboardAccessException ex) {
throw new ProcessingException("Blackboard error: ", ex);
}
}
