public static void createAggregation(String aggName, String schemaName, String... urls) {
StreamAggregation s = NoSql.em().find(StreamAggregation.class, aggName);
if (s == null) {
s = new StreamAggregation();
} else {
if (!s.getSchema().getName().equals(schemaName))
throw new RuntimeException(
"Aggregation name=" + aggName + " is already in use under group=" + schemaName);
}
SecureSchema schema = SecureSchema.findByName(NoSql.em(), schemaName);
s.setName(aggName);
List<String> streamUrls = s.getUrls();
streamUrls.clear();
for (String url : urls) {
streamUrls.add(url);
}
s.setSchema(schema);
NoSql.em().put(s);
NoSql.em().put(schema);
NoSql.em().flush();
}
