private boolean hasBlobField(List<Field> fields) {
for (Field field : fields) {
if (field.getType().isBlob()) {
return true;
}
}
return false;
}
private static void assertRelationshipIsHistoryCompatible(
Field field, RelationshipHolder holder, List<Entity> allEntities) {
Entity relatedEntity = findEntityByName(holder.getRelatedClass(), allEntities);
if (!hasCorrectTrackingSettings(field, relatedEntity, holder)) {
String relatedClassName = relatedEntity == null ? "null" : relatedEntity.getClassName();
throw new InvalidEntitySettingsException(field.getEntity().getClassName(), relatedClassName);
}
}
private static MultiValueMap<String, String> validateRelationship(
MultiValueMap<String, String> unresolvedRelations, Field field, RelationshipHolder holder) {
List<String> relatedClasses = unresolvedRelations.get(holder.getRelatedClass());
if (relatedClasses != null
&& relatedClasses.contains(field.getEntity().getClassName())
&& StringUtils.isEmpty(holder.getRelatedField())) {
throw new InvalidRelationshipException(
holder.getRelatedClass(), field.getEntity().getClassName());
}
if (holder.hasUnresolvedRelation()
&& !field.getEntity().getClassName().equals(holder.getRelatedClass())) {
unresolvedRelations.add(field.getEntity().getClassName(), holder.getRelatedClass());
}
return unresolvedRelations;
}
/**
* Resolves correct task parameter type, based on the MDS field type.
*
* @param field MDS field
* @return matching task parameter type
*/
public static String resolveType(Field field) {
Type type = field.getType();
if (type.isCombobox()) {
return resolveComboboxType(new ComboboxHolder(field));
} else {
String matchedType = TYPE_MAPPING.get(type.getDisplayName());
return null != matchedType ? matchedType : UNKNOWN;
}
}
private String lookupParamDescription(
Field field, LookupFieldType lookupFieldType, Locale locale) {
// start with tooltip or name if tooltip is not defined
// for sets and ranges append appropriate info
StringBuilder desc =
new StringBuilder(
StringUtils.isNotBlank(field.getTooltip()) ? field.getTooltip() : field.getName());
switch (lookupFieldType) {
case SET:
desc.append(" - ").append(msg(locale, SET_PARAM_DESC_KEY));
break;
case RANGE:
desc.append(" - ").append(msg(locale, RANGE_PARAM_DESC_KEY));
break;
default:
break;
}
return desc.toString();
}
private static boolean hasCorrectTrackingSettings(
Field field, Entity relatedEntity, RelationshipHolder holder) {
boolean recordsHistory = field.getEntity().isRecordHistory();
boolean relatedRecordsHistory = relatedEntity.isRecordHistory();
if (holder.isBiDirectional()) {
// Both sides of bi-directional relationship must have the same history tracking settings
return !(recordsHistory ^ relatedRecordsHistory);
} else {
// For uni-directional relationship, the related side must not have more strict options than
// the entity that defines the relationship
return recordsHistory ? relatedRecordsHistory : true;
}
}
private void buildDefinitionProperties(
Map<String, Property> properties,
List<String> required,
Entity entity,
boolean includeAuto,
boolean includeId) {
if (includeId) {
properties.put(Constants.Util.ID_FIELD_NAME, new Property(INTEGER_TYPE, INT64_FORMAT));
}
for (Field field : entity.getFields()) {
final String fieldName = field.getName();
if (field.isExposedViaRest()) {
// auto generated fields included only in responses
if (!field.isAutoGenerated() || includeAuto) {
Property property = SwaggerFieldConverter.fieldToProperty(field);
properties.put(fieldName, property);
if (field.isRequired()) {
required.add(fieldName);
}
}
}
}
}
/**
* Takes a list of entities and sorts them, according to relationships they have. The entities
* that have uni-directional relationship with another entity, will be moved to the position
* behind the entity they are related with. The bi-directional relationships are not sorted,
* moreover if invalid bi-directional relationship is found, an exception is thrown.
*
* @param list Initial list of entities to sort
* @return List of entities, sorted by relationship
*/
public static List<Entity> sortByHasARelation(List<Entity> list) {
List<Entity> sorted = new ArrayList<>(list);
MultiValueMap<String, String> unresolvedRelations = new LinkedMultiValueMap<>();
// we need to check if classes have 'has-a' relation
// these classes should be later in list
// we do that after all entities will be added to sorted list
for (int i = 0; i < sorted.size(); ++i) {
Entity entity = sorted.get(i);
List<Field> fields =
(List<Field>)
CollectionUtils.select(
entity.getFields(),
new Predicate() {
@Override
public boolean evaluate(Object object) {
return object instanceof Field && ((Field) object).getType().isRelationship();
}
});
if (CollectionUtils.isNotEmpty(fields)) {
int max = i;
for (Field field : fields) {
final RelationshipHolder holder = new RelationshipHolder(field);
// For each field we perform a validation to spot circular, unresolvable relations,
// which means the data model is incorrect
unresolvedRelations = validateRelationship(unresolvedRelations, field, holder);
assertRelationshipIsHistoryCompatible(field, holder, list);
Entity relation =
(Entity)
CollectionUtils.find(
sorted,
new Predicate() {
@Override
public boolean evaluate(Object object) {
return object instanceof Entity
&& ((Entity) object)
.getClassName()
.equalsIgnoreCase(holder.getRelatedClass());
}
});
// In case the relation is bidirectional, we shouldn't move the class,
// in order to avoid infinite loop
boolean biDirectional = field.getMetadata(RELATED_FIELD) != null;
max = Math.max(max, biDirectional ? -1 : sorted.indexOf(relation));
}
if (max != i) {
sorted.remove(i);
--i;
if (max < sorted.size()) {
sorted.add(max, entity);
} else {
sorted.add(entity);
}
}
}
}
return sorted;
}
