private CustomField buildCustomFieldFromAttribute(EntityAttribute attrib) {
CustomField field = new CustomField();
field.setEntityName(attrib.getEntity().getName());
field.setFieldName(attrib.getName());
field.setSourceFieldName(attrib.getSourceName());
field.setTransformationFunctionName(attrib.getTransformationFunction());
if (attrib.getFunctionParameters() != null) {
field.setConfigurationParameters(deserializeParameters(attrib.getFunctionParameters()));
}
return field;
}
@SuppressWarnings("unchecked")
public void update(Observable o, Object eventData) {
if (!(o instanceof EventObservable)
|| eventData == null
|| !(eventData instanceof CustomField)) {
log.warn("Received unexpected event with data of " + eventData);
return;
}
EventObservable event = (EventObservable) o;
CustomField customField = (CustomField) eventData;
Map<String, List<CustomField>> customFieldsListByEntityName =
(Map<String, List<CustomField>>)
Context.getConfiguration()
.lookupConfigurationEntry(
customField.getEntityName(),
ConfigurationRegistry.CUSTOM_FIELD_LIST_BY_ENTITY_NAME_MAP);
Map<String, Map<String, CustomField>> customFieldsMapByEntityName =
(Map<String, Map<String, CustomField>>)
Context.getConfiguration()
.lookupConfigurationEntry(
customField.getEntityName(),
ConfigurationRegistry.CUSTOM_FIELD_MAP_BY_ENTITY_NAME_MAP);
List<CustomField> fieldList = customFieldsListByEntityName.get(customField.getEntityName());
Map<String, CustomField> fieldMap =
customFieldsMapByEntityName.get(customField.getEntityName());
if (event.getType() == ObservationEventType.CUSTOM_FIELD_ADD_EVENT) {
log.debug(
"A new custom field was added; we need to update the in-memory registry: " + customField);
fieldList.add(customField);
fieldMap.put(customField.getFieldName(), customField);
} else if (event.getType() == ObservationEventType.CUSTOM_FIELD_UPDATE_EVENT) {
log.debug(
"A custom field was updated; we need to update the in-memory registry: " + customField);
boolean found = false;
for (CustomField item : fieldList) {
if (item.getFieldName().equals(customField.getFieldName())) {
found = true;
item.setConfigurationParameters(customField.getConfigurationParameters());
item.setSourceFieldName(customField.getSourceFieldName());
item.setTransformationFunctionName(customField.getTransformationFunctionName());
log.debug(
"As a result of an update custom field event, update field "
+ item
+ " in the list.");
}
}
if (!found) {
log.warn(
"Received an event to update an existing custom field but the field is not found in the registry.");
}
fieldMap.put(customField.getFieldName(), customField);
} else if (event.getType() == ObservationEventType.CUSTOM_FIELD_DELETE_EVENT) {
log.debug(
"A new custom field was deleted; we need to update the in-memory registry: "
+ customField);
CustomField foundField = null;
for (CustomField item : fieldList) {
if (item.getFieldName().equals(customField.getFieldName())) {
foundField = item;
}
}
if (foundField != null) {
fieldList.remove(foundField);
log.debug(
"As a result of a delete custom field event, deleted field "
+ foundField
+ " from the list.");
}
fieldMap.remove(customField.getFieldName());
}
}