public Repository(params Assembly[] searchAssemblies)
{
mInstancePool = new JsonReferenceResolver();
mSchema = PersistedNode.GetSchema(searchAssemblies ?? new Assembly[0]);
mConverters = PersistedNode.GetConverters(searchAssemblies ?? new Assembly[0]);
}
public void Export(IBlobStore target)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
var container = target;
var instancePool = mInstancePool;
foreach (var type in mSchema.GetKnownElements().SelectMany(x => x.ConcreteTypes))
{
var section = PersistedNode.GetContainerKey(type);
var sectionContainer = container.GetChildStore(section);
foreach (var instance in instancePool.GetAll(type))
{
var key = new StringKey($"{instance.Key}.json");
using (var writer = sectionContainer.Open(key).AsText().Write())
{
try
{
instance.Serialize(writer, mConverters);
}
catch (Exception exception)
{
throw new InvalidDataException($"Object \"{instance.Key}\" ({section}): {exception.Message}", exception);
}
}
}
}
}
public void Import(IBlobStore source)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
var container = source;
var instancePool = mInstancePool;
foreach (var keyTypePartition in mSchema.GetPartitionsByDependencyDepth())
{
foreach (var keyType in keyTypePartition)
{
foreach (var implementation in keyType.ConcreteTypes)
{
var section = PersistedNode.GetContainerKey(implementation);
var sectionContainer = container.GetChildStore(section, true);
foreach (var leaf in sectionContainer.Keys.Where(x => x.EndsWith(".json", StringComparison.InvariantCultureIgnoreCase)))
{
using (var reader = sectionContainer.Open(leaf).AsText().Read())
{
var key = Path.GetFileNameWithoutExtension(leaf);
try
{
var instance = Persistable.Deserialize(key, implementation, reader, instancePool, mConverters);
mInstancePool.Register(instance);
}
catch (Exception exception)
{
throw new InvalidDataException($"Object \"{key}\" ({section}): {exception.Message}", exception);
}
}
}
}
}
}
}
public ImageSource GetIcon <T>(StringKey key)
{
var category = PersistedNode.GetContainerKey(typeof(T));
return(GetIcon(key, category));
}
public static ObjectDependencyGraph <PersistedNode> GetSchema(params Assembly[] searchAssemblies)
{
var schema = new ObjectDependencyGraph <PersistedNode>();
var types =
from assembly in searchAssemblies
from type in assembly.GetTypes()
where type.IsSubclassOf(typeof(Persistable))
where !type.IsAbstract && !type.IsInterface
select type;
var composedTypeArray = types.ToArray();
var typeToInfoDictionary = new Dictionary <Type, PersistedNode>();
foreach (var type in composedTypeArray)
{
var currentHierarchyLevel = type;
var keyType = type;
while (currentHierarchyLevel != null && currentHierarchyLevel != typeof(Persistable) && currentHierarchyLevel != typeof(object))
{
if (currentHierarchyLevel.GetCustomAttribute <KeyClassAttribute>(false) != null)
{
keyType = currentHierarchyLevel;
break;
}
currentHierarchyLevel = currentHierarchyLevel.BaseType;
}
var info = typeToInfoDictionary.GetValueByKeyOrDefault(keyType);
if (info == null)
{
typeToInfoDictionary.Add(keyType, info = new PersistedNode(keyType));
}
var transientDependencies =
from property in type.GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic)
from dependency in GetTransientDependencies(property.PropertyType)
select dependency;
info.ConcreteTypes.Add(type);
foreach (var dependency in transientDependencies)
{
info.Dependencies.Add(dependency);
}
schema.Register(info);
typeToInfoDictionary.AddOrUpdate(keyType, info);
}
foreach (var type in typeToInfoDictionary.Keys)
{
var info = typeToInfoDictionary[type];
var dependencyNode = schema.Element(info);
foreach (var dependency in info.Dependencies)
{
var dependencyInfo = typeToInfoDictionary.GetValueByKeyOrDefault(dependency);
if (dependencyInfo == null || dependencyInfo.Key == dependency)
{
continue;
}
dependencyNode.DependsOn(dependencyInfo);
}
}
return(schema);
}
private bool Equals(PersistedNode other)
{
return(Key == other.Key);
}
