/**
* Checks to see if all of the values in the list are numeric or not.
*
* @param vals
* @return
*/
private boolean checkForNonNumeric(DataValue vals) {
for (DataValue dv : vals.asList()) {
if (dv.dataType() != DataType.LONG && dv.dataType() != DataType.DOUBLE) {
return true;
}
}
return false;
}
@Override
public DataValue call(ScriptContext context, Map<String, DataValue> args)
throws ScriptFunctionException {
boolean containsNonNumeric;
DataValue values = args.get("list");
if (values.asList().size() == 0) {
return DataValueFactory.longValue(0);
}
containsNonNumeric = checkForNonNumeric(values);
List<DataValue> matching = new ArrayList<>();
matching.addAll(values.asList());
// Perform equal to checks
DataValue equal = args.get(EQUAL_TO);
if (equal.dataType() != DataType.NULL) {
List<DataValue> lst = new ArrayList<>();
for (DataValue dv : matching) {
if (dv.equals(equal)) {
lst.add(dv);
}
}
matching = lst;
}
// Perform not checks
DataValue not = args.get(NOT);
if (not.dataType() != DataType.NULL) {
List<DataValue> lst = new ArrayList<>();
for (DataValue dv : matching) {
if (dv.equals(not) == false) {
lst.add(dv);
}
}
matching = lst;
}
// Perform greater than checks.
DataValue greater = args.get(GREATER_THAN);
if (greater.dataType() != DataType.NULL) {
if (containsNonNumeric) {
throw new ScriptFunctionException(
"Can not do comparison count if list contains non numeric values.");
}
List<DataValue> lst = new ArrayList<>();
for (DataValue dv : matching) {
if (dv.asDouble() > greater.asDouble()) {
lst.add(dv);
}
}
matching = lst;
}
// Perform less than checks
DataValue less = args.get(LESS_THAN);
if (less.dataType() != DataType.NULL) {
if (containsNonNumeric) {
throw new ScriptFunctionException(
"Can not do comparison count if list contains non numeric values.");
}
List<DataValue> lst = new ArrayList<>();
for (DataValue dv : matching) {
if (dv.asDouble() < less.asDouble()) {
lst.add(dv);
}
}
matching = lst;
}
// Perform at least checks
DataValue atLeast = args.get(AT_LEAST);
if (atLeast.dataType() != DataType.NULL) {
if (containsNonNumeric) {
throw new ScriptFunctionException(
"Can not do comparison count if list contains non numeric values.");
}
List<DataValue> lst = new ArrayList<>();
for (DataValue dv : matching) {
if (dv.asDouble() >= atLeast.asDouble()) {
lst.add(dv);
}
}
matching = lst;
}
// Perform at most checks
DataValue atMost = args.get(AT_MOST);
if (atMost.dataType() != DataType.NULL) {
if (containsNonNumeric) {
throw new ScriptFunctionException(
"Can not do comparison count if list contains non numeric values.");
}
List<DataValue> lst = new ArrayList<>();
for (DataValue dv : matching) {
if (dv.asDouble() <= atMost.asDouble()) {
lst.add(dv);
}
}
matching = lst;
}
return DataValueFactory.longValue(matching.size());
}