/**
* Utility class to filter field types provided by a host.
*
* @param targetHost the fields target host
* @param filters optional filters, can be null
* @return filtered field types of the target host
* @throws FormatException
*/
public static LinkedHashMap<String, FieldBaseTypes> getFilteredFieldTypes(
final FieldsHost targetHost, final List<FieldsFilter> filters) throws FormatException {
LinkedHashMap<String, FieldBaseTypes> fieldTypes;
if (targetHost != null) {
fieldTypes = new LinkedHashMap<>(targetHost.getFieldTypes());
} else {
fieldTypes = new LinkedHashMap<>();
}
if (filters != null) {
for (final FieldsFilter f : filters) {
f.filterKnownFields(fieldTypes);
}
}
return fieldTypes;
}
private void filter(final Event event) {
for (final FieldsFilter f : filters) {
f.filter(event);
}
}