public static Intent getIntent(final ObjectMember member, final Method method) {
final List<Facet> allFacets = member.getFacets(Filters.anyOfType(Facet.class));
final List<ImperativeFacet> imperativeFacets = Lists.newArrayList();
for (final Facet facet : allFacets) {
final ImperativeFacet imperativeFacet = ImperativeFacet.Util.getImperativeFacet(facet);
if (imperativeFacet == null) {
continue;
}
final List<Method> methods = imperativeFacet.getMethods();
if (!methods.contains(method)) {
continue;
}
imperativeFacets.add(imperativeFacet);
}
switch (imperativeFacets.size()) {
case 0:
break;
case 1:
return imperativeFacets.get(0).getIntent(method);
default:
Intent intentToReturn = null;
for (ImperativeFacet imperativeFacet : imperativeFacets) {
Intent intent = imperativeFacet.getIntent(method);
if (intentToReturn == null) {
intentToReturn = intent;
} else if (intentToReturn != intent) {
throw new IllegalArgumentException(
member.getIdentifier().toClassAndNameIdentityString()
+ ": more than one ImperativeFacet for method "
+ method.getName()
+ " , with inconsistent intents: "
+ imperativeFacets.toString());
}
}
return intentToReturn;
}
throw new IllegalArgumentException(
member.getIdentifier().toClassAndNameIdentityString()
+ ": unable to determine intent of "
+ method.getName());
}
@Override
public boolean accept(final Facet facet) {
return ImperativeFacet.Util.isImperativeFacet(facet);
}