package br.com.caelum.vraptor.serialization.gson;
import static br.com.caelum.vraptor.serialization.gson.GsonSerializer.isPrimitive;
import java.util.Map.Entry;
import net.vidageek.mirror.dsl.Mirror;
import br.com.caelum.vraptor.ioc.Component;
import br.com.caelum.vraptor.serialization.xstream.Serializee;
import com.google.gson.ExclusionStrategy;
import com.google.gson.FieldAttributes;
/**
*
* @author Renan Reis
* @author Guilherme Mangabeira
*/
@Component
public class Exclusions implements ExclusionStrategy {
private Serializee serializee;
public Exclusions(Serializee serializee) {
this.serializee = serializee;
}
public boolean shouldSkipField(FieldAttributes f) {
String fieldName = f.getName();
Class<?> definedIn = f.getDeclaringClass();
for (Entry<String, Class<?>> include : serializee.getIncludes().entries()) {
if (isCompatiblePath(include, definedIn, fieldName)) {
return false;
}
}
for (Entry<String, Class<?>> exclude : serializee.getExcludes().entries()) {
if (isCompatiblePath(exclude, definedIn, fieldName)) {
return true;
}
}
boolean skip = false;
if (!serializee.isRecursive())
skip = !isPrimitive(new Mirror().on(definedIn).reflect().field(fieldName).getType());
return skip;
}
private boolean isCompatiblePath(Entry<String, Class<?>> path, Class<?> definedIn, String fieldName) {
return (path.getValue().equals(definedIn) && (path.getKey().equals(fieldName) || path.getKey().endsWith(
"." + fieldName)));
}
public boolean shouldSkipClass(Class<?> clazz) {
return false;
}
}