@Override
public List<Map<String, Object>> getRecords(Query query) {
if (query.getSteps().size() == 1 && query.getFields().size() == 1) {
StepField field = query.getFields().get(0);
if (field instanceof AggregatedField) {
AggregatedField af = (AggregatedField) field;
if (af.getAggregationType() == AggregatedField.AGGREGATION_TYPE_COUNT
|| af.getAggregationType()
== AggregatedField
.AGGREGATION_TYPE_COUNT_DISTINCT // we count for one field so it is automaticly
// distinct
) {
if (query.getConstraint() != null) {
throw new UnsupportedOperationException(
"Query '" + query.toSql() + "' has a constraint, that is not yet supported");
} else {
String tableName = query.getSteps().get(0).getTableName();
Set<String> wantedNodeManagers =
getNodeManagerAndDescendants(cloud.getNodeManager(tableName));
int count = 0;
for (MockCloudContext.NodeDescription nd : cloud.cloudContext.nodes.values()) {
// System.out.println("Checking " + nd);
if (wantedNodeManagers.contains(nd.type)) {
count++;
}
}
Map<String, Object> result = new HashMap<String, Object>();
String key = field.getAlias();
if (key == null) key = field.getFieldName();
result.put(key, count);
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
list.add(result);
// System.out.println("Count " + result);
return list;
}
} else {
throw new UnsupportedOperationException(
"Aggregation " + af.getAggregationType() + " is not supported");
}
} else {
throw new UnsupportedOperationException(
"Field should be AggregatedField, but is " + field.getClass()); // RuntimeException ?
}
} else {
throw new UnsupportedOperationException(
"Query '" + query.toSql() + "' has more than one field, which is not yet supported");
}
}
/** A function returning a Node as a bridge object, but based on a Map of values. */
public Node nodeFunction2() {
Map<String, String> map = new HashMap<String, String>();
map.put("bloe", parameter1);
return new org.mmbase.bridge.util.MapNode(map);
}
/** A function returning a Map */
public Map<String, String> mapFunction() {
Map<String, String> map = new HashMap<String, String>();
map.put("bloe", parameter1);
return map;
}