private Map<String, FilteringPropertyFilter> createSubfilters(
final Class<?> entityClass, final Map<String, ObjectGraph> entitySubgraphs) {
final Set<String> processed = Sets.newHashSet();
final Map<String, FilteringPropertyFilter> subfilters = Maps.newHashMap();
for (final Map.Entry<String, ObjectGraph> entry : entitySubgraphs.entrySet()) {
final String fieldName = entry.getKey();
if (fieldName.startsWith("_")) continue;
final ObjectGraph graph = entry.getValue();
// Subgraph Fields.
final Map<String, ObjectGraph> subgraphs = graph.getSubgraphs(fieldName);
Map<String, FilteringPropertyFilter> subSubfilters = Maps.newHashMap();
if (!subgraphs.isEmpty()) {
final Class<?> subEntityClass = graph.getEntityClass();
processed.add(getProcessedSubgraph(entityClass, fieldName, subEntityClass));
subSubfilters = createSubfilters(fieldName, subEntityClass, subgraphs, processed);
}
final FilteringPropertyFilter filter =
new FilteringPropertyFilter(
graph.getEntityClass(), graph.getFields(fieldName), subSubfilters);
subfilters.put(fieldName, filter);
}
return subfilters;
}
/** {@inheritDoc} */
@Override
public FilterProvider transform(final ObjectGraph graph) {
// Root entity.
final FilteringPropertyFilter root =
new FilteringPropertyFilter(
graph.getEntityClass(),
graph.getFields(),
createSubfilters(graph.getEntityClass(), graph.getSubgraphs()));
return new FilteringFilterProvider(root);
}
private Map<String, FilteringPropertyFilter> createSubfilters(
final String parent,
final Class<?> entityClass,
final Map<String, ObjectGraph> entitySubgraphs,
final Set<String> processed) {
final Map<String, FilteringPropertyFilter> subfilters = Maps.newHashMap();
for (final Map.Entry<String, ObjectGraph> entry : entitySubgraphs.entrySet()) {
final String fieldName = entry.getKey();
if (fieldName.startsWith("_")) continue;
final ObjectGraph graph = entry.getValue();
final String path = parent + "." + fieldName;
// Subgraph Fields.
final Map<String, ObjectGraph> subgraphs = graph.getSubgraphs(path);
final Class<?> subEntityClass = graph.getEntityClass();
final String processedSubgraph = getProcessedSubgraph(entityClass, fieldName, subEntityClass);
Map<String, FilteringPropertyFilter> subSubfilters = Maps.newHashMap();
if (!subgraphs.isEmpty() && !processed.contains(processedSubgraph)) {
processed.add(processedSubgraph);
subSubfilters = createSubfilters(path, subEntityClass, subgraphs, processed);
}
subfilters.put(
fieldName,
new FilteringPropertyFilter(
graph.getEntityClass(), graph.getFields(path), subSubfilters));
}
return subfilters;
}