public PrefVal <C> collection <A, C, CB>(
string key,
Fn <A, byte[]> serialize, Fn <byte[], Option <A> > deserialize,
Fn <CB> createCollectionBuilder, Act <CB, A> addToCollection,
Fn <CB, C> builderToCollection,
C defaultVal, bool saveOnEveryWrite = true,
PrefVal.OnDeserializeFailure onDeserializeFailure =
PrefVal.OnDeserializeFailure.ReturnDefault,
PrefVal.OnDeserializeCollectionItemFailure onDeserializeCollectionItemFailure =
PrefVal.OnDeserializeCollectionItemFailure.Ignore,
ILog log = null
) where C : IEnumerable <A>
{
log = log ?? Log.defaultLogger;
return(base64(
key, defaultVal,
c => c.Select(a => serialize(a)),
parts => {
var b = createCollectionBuilder();
foreach (var partData in parts)
{
var deserialized = deserialize(partData);
if (deserialized.isDefined)
{
addToCollection(b, deserialized.get);
}
else
{
if (
onDeserializeCollectionItemFailure ==
PrefVal.OnDeserializeCollectionItemFailure.Ignore
)
{
if (log.isWarn())
{
log.warn(deserializeCollectionItemFailureMsg <A, C>(key, partData, ", ignoring"));
}
}
else
{
throw new SerializationException(
deserializeCollectionItemFailureMsg <A, C>(key, partData)
);
}
}
}
return builderToCollection(b).some();
},
saveOnEveryWrite: saveOnEveryWrite,
onDeserializeFailure: onDeserializeFailure,
log: log
));
}
PrefVal <ImmutableList <int> > create(
ImmutableList <int> defaultVal,
Fn <byte[], Option <int> > deserializeFn = null,
PrefVal.OnDeserializeCollectionItemFailure onItemFailure =
PrefVal.OnDeserializeCollectionItemFailure.ThrowException
) =>
storage.collection(
key, serialize, deserializeFn ?? deserialize,
createBuilder, add, toList, defaultVal,
onDeserializeCollectionItemFailure: onItemFailure,
log: log
);
public PrefVal <ImmutableHashSet <A> > hashSet <A>(
string key,
Fn <A, byte[]> serialize, Fn <byte[], Option <A> > deserialize,
ImmutableHashSet <A> defaultVal = null, bool saveOnEveryWrite = true,
PrefVal.OnDeserializeFailure onDeserializeFailure =
PrefVal.OnDeserializeFailure.ReturnDefault,
PrefVal.OnDeserializeCollectionItemFailure onDeserializeCollectionItemFailure =
PrefVal.OnDeserializeCollectionItemFailure.Ignore,
ILog log = null
) => collection(
key, serialize, deserialize,
ImmutableHashSet.CreateBuilder <A>, (b, a) => b.Add(a), b => b.ToImmutable(),
defaultVal ?? ImmutableHashSet <A> .Empty,
saveOnEveryWrite, onDeserializeFailure, onDeserializeCollectionItemFailure, log
);
