/// <summary>Restores a collection from the config node.</summary>
/// <remarks>This method never throws.</remarks>
/// <param name="node">The node to read the state from.</param>
/// <param name="instance">
/// The owner of the field. It can be <c>null</c> for the static fields.
/// </param>
void ReadCollectionFromConfig(ConfigNode node, object instance)
{
var value = fieldInfo.GetValue(instance);
if (value == null)
{
// Collections are the complex objects, they must exist in order to be restored.
DebugEx.Warning("Skip reading collection field {0}.{1} due to it's not initalized",
fieldInfo.DeclaringType.FullName, fieldInfo.Name);
return;
}
collectionProto.ClearItems(value);
if (isCompound)
{
// For compound items read nodes and have them parsed.
var itemCfgs = ConfigAccessor.GetNodesByPath(node, cfgPath);
if (itemCfgs != null)
{
foreach (var itemCfg in itemCfgs)
{
var itemValue = Activator.CreateInstance(collectionProto.GetItemType());
DeserializeCompoundFieldsFromNode(itemCfg, itemValue);
collectionProto.AddItem(value, itemValue);
}
}
}
else
{
// For ordinary items read strings and have them parsed.
var itemCfgs = ConfigAccessor.GetValuesByPath(node, cfgPath);
if (itemCfgs != null)
{
foreach (var itemCfg in itemCfgs)
{
try {
object itemValue;
if (isCustomSimpleType)
{
itemValue = Activator.CreateInstance(collectionProto.GetItemType());
((IPersistentField)itemValue).ParseFromString(itemCfg);
}
else
{
itemValue = simpleTypeProto.ParseFromString(itemCfg, collectionProto.GetItemType());
}
collectionProto.AddItem(value, itemValue);
} catch (Exception ex) {
DebugEx.Error("Cannot parse value \"{0}\" as {1}: {2}",
itemCfgs, collectionProto.GetItemType().FullName, ex.Message);
}
}
}
}
}
/// <summary>Creates a collection from the config node.</summary>
/// <param name="node">A node to read data from.</param>
/// <returns>Сollection instance.</returns>
internal object DeserializeValues(ConfigNode node)
{
object instance = null;
var values = persistentField.ordinaryFieldHandler.IsCompound()
? ConfigAccessor.GetNodesByPath(node, persistentField.cfgPath) as object[]
: ConfigAccessor.GetValuesByPath(node, persistentField.cfgPath) as object[];
if (values != null)
{
instance = Activator.CreateInstance(collectionType);
foreach (var value in values)
{
var item = persistentField.ordinaryFieldHandler.DeserializeValue(value);
if (item != null)
{
collectionProto.AddItem(instance, item);
}
}
}
return(instance);
}
/// <summary>Reads field from a config node.</summary>
/// <param name="node">A node to read state from.</param>
/// <param name="instance">An owner of the field. Can be <c>null</c> for static fields.</param>
public void ReadFromConfig(ConfigNode node, object instance)
{
var value = fieldInfo.GetValue(instance);
if (collectionProto != null)
{
// For collection field use existing object and restore its items.
if (value == null)
{
Debug.LogWarningFormat("Skip reading collection field {0}.{1} due to it's not initalized",
fieldInfo.DeclaringType.FullName, fieldInfo.Name);
return;
}
collectionProto.ClearItems(value);
if (isCompound)
{
// For compound items read nodes and have them parsed.
var itemCfgs = ConfigAccessor.GetNodesByPath(node, cfgPath);
if (itemCfgs != null)
{
foreach (var itemCfg in itemCfgs)
{
var itemValue = Activator.CreateInstance(collectionProto.GetItemType());
DeserializeCompoundFieldsFromNode(itemCfg, itemValue);
collectionProto.AddItem(value, itemValue);
}
}
}
else
{
// For ordinary items read strings and have them parsed.
var itemCfgs = ConfigAccessor.GetValuesByPath(node, cfgPath);
if (itemCfgs != null)
{
foreach (var itemCfg in itemCfgs)
{
try {
object itemValue;
if (isCustomSimpleType)
{
itemValue = Activator.CreateInstance(collectionProto.GetItemType());
((IPersistentField)itemValue).ParseFromString(itemCfg);
}
else
{
itemValue = simpleTypeProto.ParseFromString(itemCfg, collectionProto.GetItemType());
}
collectionProto.AddItem(value, itemValue);
} catch (Exception ex) {
Debug.LogErrorFormat("Cannot parse value \"{0}\" as {1}: {2}",
itemCfgs, collectionProto.GetItemType().FullName, ex.Message);
}
}
}
}
}
else
{
// For ordinary field just restore value and assign it to the field.
if (isCompound)
{
if (value != null)
{
DeserializeCompoundFieldsFromNode(ConfigAccessor.GetNodeByPath(node, cfgPath), value);
}
else
{
Debug.LogWarningFormat("Skip reading compound field {0}.{1} due to it's not initalized",
fieldInfo.DeclaringType.FullName, fieldInfo.Name);
}
}
else
{
var cfgValue = ConfigAccessor.GetValueByPath(node, cfgPath);
if (cfgValue != null)
{
try {
object fieldValue;
if (isCustomSimpleType)
{
// Prefer the existing instance of the field value when available.
fieldValue = value ?? Activator.CreateInstance(fieldInfo.FieldType);
((IPersistentField)fieldValue).ParseFromString(cfgValue);
}
else
{
fieldValue = simpleTypeProto.ParseFromString(cfgValue, fieldInfo.FieldType);
}
fieldInfo.SetValue(instance, fieldValue);
} catch (Exception ex) {
Debug.LogErrorFormat("Cannot parse value \"{0}\" as {1}: {2}",
cfgValue, fieldInfo.FieldType.FullName, ex.Message);
}
}
}
}
}
