private String getSortKey(Object value) {
if (value instanceof PrestoTopic) {
PrestoTopic topic = (PrestoTopic) value;
return topic.getName(field);
} else {
return value == null ? null : value.toString();
}
}
@Override
public void create(PrestoTopic topic) {
String topicId = topic.getId();
String typeId = topic.getTypeId();
if (topicId == null) {
ObjectNode data = ((JacksonTopic) topic).getData();
topicId = identityStrategy.generateId(typeId, data);
data.put("_id", topicId);
}
if (topics.containsKey(topicId)) {
throw new RuntimeException("Topic with id '" + topicId + "' already created.");
} else {
if (topicId == null) {
throw new NullPointerException();
}
topics.put(topicId, topic);
}
}
@Override
public void update(PrestoTopic topic) {
String topicId = topic.getId();
if (topicId == null) {
throw new NullPointerException();
}
if (topics.containsKey(topicId)) {
topics.put(topicId, topic);
} else {
throw new RuntimeException("Topic with id '" + topicId + "' not an existing topic.");
}
}
private ValueFieldConfig getValueFieldConfig(PrestoTopic valueTopic, String valueFieldId) {
String valueTypeId = valueTopic.getTypeId();
ValueFieldConfig valueFieldConfig = valueFieldConfigCache.get(valueTypeId);
if (valueFieldConfig == null) {
PrestoDataProvider dataProvider = presto.getDataProvider();
PrestoSchemaProvider schemaProvider = presto.getSchemaProvider();
PrestoType valueType = schemaProvider.getTypeById(valueTypeId);
PrestoField valueField = valueType.getFieldById(valueFieldId);
Comparator<Object> valueComparator = null;
ObjectNode extra = ExtraUtils.getFieldExtraNode(valueField);
if (extra != null) {
JsonNode handlerNode = extra.path("valueComparator");
if (handlerNode.isObject()) {
FieldValueComparator handler =
AbstractHandler.getHandler(
dataProvider,
schemaProvider,
FieldValueComparator.class,
(ObjectNode) handlerNode);
if (handler != null) {
handler.setPresto(presto);
}
valueComparator = handler;
}
}
if (valueComparator == null) {
valueComparator = new FieldComparator(valueField, false);
}
valueFieldConfig = new ValueFieldConfig(presto, rules, field, valueField, valueComparator);
valueFieldConfigCache.put(valueTypeId, valueFieldConfig);
}
return valueFieldConfig;
}
@Override
public boolean delete(PrestoTopic topic) {
String topicId = topic.getId();
return topics.remove(topicId) != null;
}