public ISerializableObject CreateISerializableObject(Type type)
{
AttributeWorker w = AttributeWorker.GetInstance(Target);
ISerializableObject iso = null;
try
{
iso = (ISerializableObject)Activator.CreateInstance(type);
}
catch (InvalidCastException)
{
throw new SerializerException();
}
_objectPool.Register(iso);
ResolverData <ISerializableObject> data = new ResolverData <ISerializableObject>();
data.FieldsToResolve = AttributeWorker.RetrieveAllFields(iso.GetType());
data.HandledItem = iso;
CreateHandler handler = new CreateHandler(this);
RelationResolver <ISerializableObject> resolver = new RelationResolver <ISerializableObject>();
resolver.Handler = handler;
resolver.StartRelationResolving(data);
return(iso);
}
internal void Delete(ISerializableObject iso, ISerializerTransaction transaction)
{
if (!IsManaged(iso))
{
return;
}
AttributeWorker w = AttributeWorker.GetInstance(Target);
ResolverData <ISerializableObject> data = new ResolverData <ISerializableObject>();
data.FieldsToResolve = AttributeWorker.RetrieveAllFields(iso.GetType());
data.HandledItem = iso;
DeleteHandler h = new DeleteHandler(this);
RelationResolver <ISerializableObject> res = new RelationResolver <ISerializableObject>();
res.Handler = h;
h.MODE = DeleteHandler.DOWNMODE;
res.StartRelationResolving(data);
_objectPool.DeleteObject(iso, _connection, transaction);
h.MODE = DeleteHandler.UPMODE;
res.StartRelationResolving(data);
}
/// <summary>
/// Получает функцию резолвинга.
/// </summary>
/// <typeparam name="T">Тип резолвинга.</typeparam>
/// <typeparam name="TResolver">Тип резолвера.</typeparam>
/// <param name="needAuth">Необходимость авторизованных запросов.</param>
/// <returns>Функция резолвинга.</returns>
protected Func <ResolveFieldContext <T>, Task <T> > GetResolver <T, TResolver>(bool needAuth = false)
where TResolver : class, ITypeResolver <T>
{
var data = new ResolverData <T, TResolver, ResolveFieldContext <T> >(needAuth);
return(data.Resolve);
}
public void Resolver_Complex()
{
var target = new PackageIdentity("EntityFramework", NuGetVersion.Parse("7.0.0-beta4"));
var packages = ResolverData.CreateEntityFrameworkPackageGraph();
var resolver = new PackageResolver();
var context = CreatePackageResolverContext(DependencyBehavior.Lowest, target, packages);
var solution = resolver.Resolve(context, CancellationToken.None);
Assert.True(solution.Contains(target, PackageIdentityComparer.Default));
}
internal ISerializableObject Load(Type type, string table, IRestriction restriction, ISerializerTransaction transaction)
{
bool found = false;
bool multiple = false;
bool isLoaded = false;
DbDataReader reader = CreateDataReader(type, table, restriction, transaction);
ISerializableObject data = null;
if (reader.Read())
{
data = _objectPool.RetrieveObject(type, reader, ref isLoaded);
found = true;
}
if (reader.Read())
{
multiple = true;
}
reader.Close();
if (multiple)
{
throw new MultipleResultException("More than one Result found for the given Restriction ...");
}
if (data == null)
{
return(null);
}
bool doRelationLoading = found && isLoaded;
if (doRelationLoading)
{
ResolverData <ISerializableObject> rData = new ResolverData <ISerializableObject>();
rData.HandledItem = data;
rData.FieldsToResolve = AttributeWorker.RetrieveAllFields(data.GetType());
LoadHandler handler = new LoadHandler(this);
RelationResolver <ISerializableObject> res = new RelationResolver <ISerializableObject>();
res.Handler = handler;
res.StartRelationResolving(rData);
}
return(data);
}
internal T Load <T>(IRestriction restriction, int readerPosition, ISerializerTransaction transaction) where T : ISerializableObject
{
if (readerPosition < 0)
{
throw new ArgumentOutOfRangeException("The passed reader position is less than 0.");
}
bool found = false;
bool isLoaded = false;
DbDataReader reader = CreateDataReader(typeof(T), restriction, transaction);
T data = default(T);
for (int i = 0; i <= readerPosition; i++)
{
if (!reader.Read())
{
reader.Close();
throw new ArgumentOutOfRangeException("The passed reader position is too big.");
}
}
data = (T)_objectPool.RetrieveObject(typeof(T), reader, ref isLoaded);
found = true;
reader.Close();
if (data == null)
{
return(default(T));
}
bool doRelationLoading = found && isLoaded;
if (doRelationLoading)
{
ResolverData <ISerializableObject> rData = new ResolverData <ISerializableObject>();
rData.HandledItem = data;
rData.FieldsToResolve = AttributeWorker.RetrieveAllFields(data.GetType());
LoadHandler handler = new LoadHandler(this);
RelationResolver <ISerializableObject> res = new RelationResolver <ISerializableObject>();
res.Handler = handler;
res.StartRelationResolving(rData);
}
return(data);
}
internal void InitSyncContainer(IDictionary <Guid, SyncContainer> pooledObjects)
{
ResolverData <ISerializableObject> data = new ResolverData <ISerializableObject>();
ISerializableObject iso = FetchObject(_sourceSerializer, _sourceGuid);
data.HandledItem = iso;
data.FieldsToResolve = AttributeWorker.RetrieveAllFields(iso.GetType());//Sind alle nötig?
DependencyRelationHandler h = new DependencyRelationHandler(this, pooledObjects);
RelationResolver <ISerializableObject> r = new RelationResolver <ISerializableObject>();
r.Handler = h;
r.StartRelationResolving(data);
}
public ResolverData GetResolverData(string id)
{
foreach (ResolverData resolverData in ResolverDatas)
{
if (resolverData.ResolverId == id)
{
return(resolverData);
}
}
ResolverData newResolver = new ResolverData();
newResolver.ResolverId = id;
ResolverDatas.Add(newResolver);
return(newResolver);
}
internal void Save(ISerializableObject iso, ISerializerTransaction transaction)
{
AttributeWorker w = AttributeWorker.GetInstance(Target);
if (!IsManaged(iso))
{
// Console.WriteLine("SERIALIZE");
_objectPool.InsertObject(iso, _connection, transaction);
ResolverData <ISerializableObject> rData = new ResolverData <ISerializableObject>();
rData.HandledItem = iso;
rData.FieldsToResolve = AttributeWorker.RetrieveAllFields(iso.GetType());
LoadHandler handler = new LoadHandler(this);
RelationResolver <ISerializableObject> res = new RelationResolver <ISerializableObject>();
res.Handler = handler;
res.StartRelationResolving(rData);
}
else
{
// Console.WriteLine("UPDATE");
UpdateStates state = _objectPool.UpdateObject(iso, _connection, transaction);
if (state == UpdateStates.NO_ROWS_AFFECTED)
{
throw new SerializerException("entry could not be updated ...");
}
else if (state == UpdateStates.PRIMARYKEY_MODIFIED)
{
UpdateEventArgs args = new UpdateEventArgs(state);
OnUpdateEvent(args);
}
ResolverData <ISerializableObject> data = new ResolverData <ISerializableObject>();
data.HandledItem = iso;
data.FieldsToResolve = AttributeWorker.RetrieveAllFields(iso.GetType());
RelationResolver <ISerializableObject> res = new RelationResolver <ISerializableObject>();
res.Handler = new UpdateHandler(this);
res.StartRelationResolving(data);
}
}
public static DnsDatagram ResolveViaNameServers(DnsQuestionRecord question, NameServerAddress[] nameServers = null, IDnsCache cache = null, NetProxy proxy = null, bool preferIPv6 = false, bool tcp = false, int retries = 2, int maxStackCount = 10)
{
if ((nameServers != null) && (nameServers.Length > 0))
{
//create copy of name servers array so that the values in original array are not messed due to shuffling feature
NameServerAddress[] nameServersCopy = new NameServerAddress[nameServers.Length];
Array.Copy(nameServers, nameServersCopy, nameServers.Length);
nameServers = nameServersCopy;
}
Stack <ResolverData> resolverStack = new Stack <ResolverData>();
int stackNameServerIndex = 0;
while (true) //stack loop
{
if (resolverStack.Count > maxStackCount)
{
while (resolverStack.Count > 0)
{
ResolverData data = resolverStack.Pop();
question = data.Question;
}
throw new DnsClientException("DnsClient exceeded the maximum stack count to resolve the domain: " + question.Name);
}
if (cache != null)
{
DnsDatagram request = new DnsDatagram(new DnsHeader(0, false, DnsOpcode.StandardQuery, false, false, true, false, false, false, DnsResponseCode.NoError, 1, 0, 0, 0), new DnsQuestionRecord[] { question }, null, null, null);
DnsDatagram cacheResponse = cache.Query(request);
switch (cacheResponse.Header.RCODE)
{
case DnsResponseCode.NoError:
if (cacheResponse.Answer.Length > 0)
{
if (resolverStack.Count == 0)
{
return(cacheResponse);
}
else
{
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex;
switch (cacheResponse.Answer[0].Type)
{
case DnsResourceRecordType.AAAA:
nameServers[stackNameServerIndex] = new NameServerAddress(nameServers[stackNameServerIndex].Domain, (cacheResponse.Answer[0].RDATA as DnsAAAARecord).Address);
break;
case DnsResourceRecordType.A:
nameServers[stackNameServerIndex] = new NameServerAddress(nameServers[stackNameServerIndex].Domain, (cacheResponse.Answer[0].RDATA as DnsARecord).Address);
break;
default:
//didnt find IP for current name server
stackNameServerIndex++; //increment to skip current name server
break;
}
continue; //stack loop
}
}
if (cacheResponse.Authority.Length > 0)
{
if (cacheResponse.Authority[0].Type == DnsResourceRecordType.SOA)
{
if (resolverStack.Count == 0)
{
return(cacheResponse);
}
else
{
if (question.Type == DnsResourceRecordType.AAAA)
{
question = new DnsQuestionRecord(question.Name, DnsResourceRecordType.A, question.Class);
}
else
{
//didnt find IP for current name server
//pop and try next name server
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex + 1; //increment to skip current name server
}
continue; //to stack loop
}
}
if ((nameServers == null) || (nameServers.Length == 0))
{
NameServerAddress[] cacheNameServers = NameServerAddress.GetNameServersFromResponse(cacheResponse, preferIPv6, true);
if (cacheNameServers.Length > 0)
{
nameServers = cacheNameServers;
}
}
}
break;
case DnsResponseCode.NameError:
if (resolverStack.Count == 0)
{
return(cacheResponse);
}
else
{
//current name server domain doesnt exists
//pop and try next name server
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex + 1; //increment to skip current name server
continue; //stack loop
}
}
}
if ((nameServers == null) || (nameServers.Length == 0))
{
//create copy of root name servers array so that the values in original array are not messed due to shuffling feature
if (preferIPv6)
{
nameServers = new NameServerAddress[ROOT_NAME_SERVERS_IPv6.Length];
Array.Copy(ROOT_NAME_SERVERS_IPv6, nameServers, ROOT_NAME_SERVERS_IPv6.Length);
}
else
{
nameServers = new NameServerAddress[ROOT_NAME_SERVERS_IPv4.Length];
Array.Copy(ROOT_NAME_SERVERS_IPv4, nameServers, ROOT_NAME_SERVERS_IPv4.Length);
}
}
NameServerAddress.Shuffle(nameServers);
int hopCount = 0;
while ((hopCount++) < MAX_HOPS) //resolver loop
{
//copy and reset stack name server index since its one time use only after stack pop
int i = stackNameServerIndex;
stackNameServerIndex = 0;
//query name servers one by one
for (; i < nameServers.Length; i++) //retry next server loop
{
NameServerAddress currentNameServer = nameServers[i];
if (question.Name == currentNameServer.Domain)
{
continue; //obvious!
}
if (currentNameServer.EndPoint == null)
{
resolverStack.Push(new ResolverData(question, nameServers, i));
if (preferIPv6)
{
question = new DnsQuestionRecord(currentNameServer.Domain, DnsResourceRecordType.AAAA, question.Class);
}
else
{
question = new DnsQuestionRecord(currentNameServer.Domain, DnsResourceRecordType.A, question.Class);
}
nameServers = null;
goto stackLoop;
}
DnsClient client = new DnsClient(currentNameServer);
client._proxy = proxy;
client._preferIPv6 = preferIPv6;
client._tcp = tcp;
client._retries = retries;
DnsDatagram request = new DnsDatagram(new DnsHeader(0, false, DnsOpcode.StandardQuery, false, false, true, false, false, false, DnsResponseCode.NoError, 1, 0, 0, 0), new DnsQuestionRecord[] { question }, null, null, null);
DnsDatagram response;
try
{
response = client.Resolve(request);
}
catch (DnsClientException)
{
continue; //resolver loop
}
if (response.Header.Truncation)
{
if (tcp)
{
return(response);
}
client._tcp = true;
response = client.Resolve(request);
}
if (cache != null)
{
cache.CacheResponse(response);
}
switch (response.Header.RCODE)
{
case DnsResponseCode.NoError:
if (response.Answer.Length > 0)
{
if (!response.Answer[0].Name.Equals(question.Name, StringComparison.CurrentCultureIgnoreCase))
{
continue; //continue to next name server since current name server may be misconfigured
}
if (resolverStack.Count == 0)
{
return(response);
}
else
{
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex;
switch (response.Answer[0].Type)
{
case DnsResourceRecordType.AAAA:
nameServers[stackNameServerIndex] = new NameServerAddress(nameServers[stackNameServerIndex].Domain, (response.Answer[0].RDATA as DnsAAAARecord).Address);
break;
case DnsResourceRecordType.A:
nameServers[stackNameServerIndex] = new NameServerAddress(nameServers[stackNameServerIndex].Domain, (response.Answer[0].RDATA as DnsARecord).Address);
break;
default:
//didnt find IP for current name server
stackNameServerIndex++; //increment to skip current name server
break;
}
goto resolverLoop;
}
}
if (response.Authority.Length == 0)
{
continue; //continue to next name server since current name server may be misconfigured
}
if (response.Authority[0].Type == DnsResourceRecordType.SOA)
{
//no entry for given type
if (resolverStack.Count == 0)
{
return(response);
}
else
{
if (question.Type == DnsResourceRecordType.AAAA)
{
question = new DnsQuestionRecord(question.Name, DnsResourceRecordType.A, question.Class);
}
else
{
//didnt find IP for current name server
//pop and try next name server
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex + 1; //increment to skip current name server
}
goto stackLoop; //goto stack loop
}
}
nameServers = NameServerAddress.GetNameServersFromResponse(response, preferIPv6, false);
if (nameServers.Length == 0)
{
continue; //continue to next name server since current name server may be misconfigured
}
goto resolverLoop;
case DnsResponseCode.NameError:
if (resolverStack.Count == 0)
{
return(response);
}
else
{
//current name server domain doesnt exists
//pop and try next name server
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex + 1; //increment to skip current name server
goto stackLoop; //goto stack loop
}
default:
continue; //continue to next name server since current name server may be misconfigured
}
}
if (resolverStack.Count == 0)
{
throw new DnsClientException("DnsClient failed to resolve the request: no response from name servers.");
}
else
{
//didnt find IP for current name server
//pop and try next name server
ResolverData data = resolverStack.Pop();
question = data.Question;
nameServers = data.NameServers;
stackNameServerIndex = data.NameServerIndex + 1; //increment to skip current name server
break; //to stack loop
}
resolverLoop :;
}
stackLoop :;
}
}
