/// <summary>
/// Returns FetchKindResponse structs for a given ResourceId and Specifier
/// </summary>
/// <param name="resId">The ResourceId</param>
/// <param name="specifier">The StoredDataSpecifier</param>
/// <param name="fetchKindResponse">The Fetch result als FetchKindResonse</param>
/// <returns>true, if value found</returns>
public bool Fetch(ResourceId resId, StoredDataSpecifier specifier,
out FetchKindResponse fetchKindResponse) {
string resouceId = resId.ToString();
lock (resources) {
if (!resources.ContainsKey(resouceId)) {
fetchKindResponse = new FetchKindResponse();
return false;
}
Resource resource = resources[resouceId];
List<StoredData> machtes = resource.StoredData(specifier);
if (machtes != null && machtes.Count >= 0) {
fetchKindResponse = new FetchKindResponse(
specifier.kindId, resource.GetGeneration(specifier.kindId), machtes);
return true;
}
}
fetchKindResponse = new FetchKindResponse();
return false;
}
public bool Fetch(ResourceId res_id, StoredDataSpecifier specifier, out FetchKindResponse kindResponse) {
FetchKindResponse result = null;
if (storage.Fetch(res_id, specifier, out result)) {
kindResponse = result;
return true;
}
kindResponse = new FetchKindResponse();
return false;
}
public void AppProcedure(FetchKindResponse kindRes, MessageTransport transport) {
myManager.m_ReloadConfig.Logger(ReloadGlobals.TRACEFLAGS.T_ERROR, "AppProcedure: ");
List<RedirServiceProviderData> ProviderList = new List<RedirServiceProviderData>();
List<StoredData> storedDatas = kindRes.values;
RedirServiceProvider provider = null;
foreach (StoredData storedData in storedDatas) {
IUsage usage = storedData.Value.GetUsageValue;
provider = (RedirServiceProvider)usage;
ProviderList.Add(provider.Data);
myManager.m_ReloadConfig.Logger(ReloadGlobals.TRACEFLAGS.T_ERROR, "AppProcedure: " + provider.Report());
}
//if (myManager != null && myManager.m_ReloadConfig.callback != null && provider != null)
// myManager.m_ReloadConfig.callback(new ResourceId(provider.ResourceName), ProviderList); //TODO: provider.ResourceName MUST (should) be the same for all providers in ProviderList
}
public override RELOAD_MessageBody FromReader(ReloadMessage rm, BinaryReader reader, long reload_msg_size)
{
/* try to read the packet as a FetchAns packet */
try
{
RELOAD_MsgCode = (RELOAD_MessageCode)(UInt16)IPAddress.NetworkToHostOrder(
reader.ReadInt16());
UInt32 message_len = (UInt32)(IPAddress.HostToNetworkOrder(
reader.ReadInt32()));
int length = 0;
if (RELOAD_MsgCode == RELOAD_MessageCode.Fetch_Answer)
{
long posBeforeKR = reader.BaseStream.Position;
UInt32 kind_responses_length = (UInt32)IPAddress.NetworkToHostOrder(
(int)reader.ReadInt32());
while (StreamUtil.ReadBytes(posBeforeKR, reader) <
kind_responses_length)
{
FetchKindResponse kind_response = new FetchKindResponse();
UInt32 kind = (UInt32)IPAddress.NetworkToHostOrder(
reader.ReadInt32());
UInt64 generation = (UInt64)IPAddress.NetworkToHostOrder(
reader.ReadInt64());
// length of all StoredData contained in this FetchKindResponse
long posBeforeSD = reader.BaseStream.Position;
UInt32 stored_data_length = (UInt32)IPAddress.NetworkToHostOrder(
reader.ReadInt32());
List<StoredData> values = new List<StoredData>();
// read StoredData
while (StreamUtil.ReadBytes(posBeforeSD, reader) <
stored_data_length)
{
// reading properties of StoredData struct
UInt32 sdLength = (UInt32)(IPAddress.NetworkToHostOrder(
reader.ReadInt32()));
UInt64 storage_time = (UInt64)(IPAddress.NetworkToHostOrder(
reader.ReadInt64()));
UInt32 lifetime = (UInt32)(IPAddress.NetworkToHostOrder(
reader.ReadInt32()));
ReloadGlobals.DataModel data_model = myManager.GetDataModelfromKindId(kind);
Boolean exists;
IUsage usage;
StoredDataValue stored_data_value;
switch (data_model)
{
case ReloadGlobals.DataModel.SINGLE_VALUE:
throw new NotImplementedException(
"There is no Usage with Single Value atm");
case ReloadGlobals.DataModel.ARRAY:
UInt32 index = (UInt32)(IPAddress.NetworkToHostOrder(
reader.ReadInt32()));
exists = (reader.ReadByte() == 0x00 ? false : true);
usage = myManager.GetUsageFromReader(rm, reader,
reload_msg_size, kind);
stored_data_value = new StoredDataValue(index, usage, exists);
break;
case ReloadGlobals.DataModel.DICTIONARY:
UInt16 keyLength = (UInt16)(IPAddress.NetworkToHostOrder(
reader.ReadInt16()));
/*string key = Encoding.ASCII.GetString(
reader.ReadBytes(keyLength), 0, keyLength);
*/
string key = BitConverter.ToString(reader.ReadBytes(keyLength)).Replace("-", string.Empty); //--joscha
exists = (reader.ReadByte() == 0x00 ? false : true);
usage = myManager.GetUsageFromReader(rm, reader,
reload_msg_size, kind);
stored_data_value = new StoredDataValue(key, usage, exists);
break;
default:
throw new NotSupportedException(
String.Format("The data_model {0} is not supported",
data_model));
}
StoredData stored_data = new StoredData(storage_time,
lifetime, stored_data_value);
stored_data.Signature = new Signature(myManager.m_ReloadConfig).FromReader(reader, reload_msg_size);
// TODO Process signature
values.Add(stored_data);
} // end read StoredData
kind_response.kind = kind;
kind_response.generation = generation;
kind_response.values = new List<StoredData>();
kind_response.values.AddRange(values);
kind_responses.Add(kind_response);
} // end read FetchKindResponses
}
reload_msg_size = reload_msg_size - (length + 1);
}
catch
{
throw new Exception();
}
return this;
}
