public bool LoadMetaDataServer()
{
if (!File.Exists(FQFilename))
{
return(false);
}
try
{
TextReader mdtr = new StreamReader(FQFilename);
string json = mdtr.ReadToEnd();
mdtr.Close();
MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json));
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(LocalMetaDataServer));
LocalMetaDataServer ts = (LocalMetaDataServer)ser.ReadObject(ms);
keytable = ts.keytable;
mdtable = ts.mdtable;
return(true);
}
// catch (Exception e)
catch
{
Console.WriteLine("Failed to load metadata file: " + FQFilename);
// Console.WriteLine("{0} Exception caught.", e);
return(false);
}
}
public bool deleteStream(FqStreamID streamId, CallerInfo Ci, string mdserveraddress = null)
{
Logger log = new Logger();
string BaseDir = Path.GetFullPath((null != Ci.workingDir) ? Ci.workingDir : Directory.GetCurrentDirectory());
string targetDir = BaseDir + "/" + streamId.ToString();
// string address = ConfigurationManager.AppSettings.Get("MDServerAddress");
// string address = "http://homelab-vm.cloudapp.net:23456/MetaDataServer/";
string address = mdserveraddress;
MetaDataService.IMetaDataService clnt = null;
if (address != null)
{
BasicHttpBinding binding = new BasicHttpBinding();
ChannelFactory <MetaDataService.IMetaDataService> factory = new ChannelFactory <MetaDataService.IMetaDataService>(binding, address);
clnt = factory.CreateChannel();
}
Dictionary <int, MetaDataService.AccountInfo> accounts = null;
string containerName; ISync synchronizerForDelete;
if (address != null)
{
try
{
MetaDataService.FQStreamID stream = new MetaDataService.FQStreamID();
stream.HomeId = streamId.HomeId;
stream.AppId = streamId.AppId;
stream.StreamId = streamId.StreamId;
accounts = clnt.GetAllAccounts(stream);
if (accounts == null)
{
// no stream of this name on the metadata server
return(false);
}
// TODO: Authentication for this update call
clnt.RemoveAllInfo(stream);
}
catch (Exception e)
{
Console.WriteLine("Exception caught {0}", e);
return(false);
}
foreach (MetaDataService.AccountInfo account in accounts.Values)
{
Boom(targetDir + "/" + account.num);
containerName = streamId.ToString().Replace('/', '-').ToLower() + "-" + account.num;
synchronizerForDelete = CreateSyncForAccount(account, containerName, log);
synchronizerForDelete.Delete();
}
containerName = streamId.ToString().Replace('/', '-').ToLower();//account info for meta stream = that of seg 0. strange?
synchronizerForDelete = CreateSyncForAccount(accounts.ElementAt(0).Value, containerName, log);
synchronizerForDelete.Delete();
}
else
{
LocalMetaDataServer localMdServer = new LocalMetaDataServer(targetDir + "/" + MetaStream <StrKey, StrValue> .StreamMDFileName, log);
localMdServer.LoadMetaDataServer();
Dictionary <int, AccountInfo> tmp = localMdServer.GetAllAccounts(new FQStreamID(streamId.HomeId, streamId.AppId, streamId.StreamId));
if (tmp != null)
{
MetaDataService.AccountInfo ai = null;
MetaDataService.AccountInfo segment0Ai = null;
foreach (AccountInfo account in tmp.Values)
{
Boom(targetDir + "/" + account.num);
containerName = streamId.ToString().Replace('/', '-').ToLower() + "-" + account.num;
ai = new MetaDataService.AccountInfo();
ai.accountKey = account.accountKey;
ai.accountName = account.accountName;
ai.location = account.location;
ai.keyVersion = account.keyVersion;
ai.num = account.num;
synchronizerForDelete = CreateSyncForAccount(ai, containerName, log);
if (synchronizerForDelete != null)
{
synchronizerForDelete.Delete();
}
if (segment0Ai == null)
{
segment0Ai = ai;
}
}
containerName = streamId.ToString().Replace('/', '-').ToLower();// TODO account info for meta stream = that of seg 0? something is wrong.
synchronizerForDelete = CreateSyncForAccount(segment0Ai, containerName, log);
if (synchronizerForDelete != null)
{
synchronizerForDelete.Delete();
}
}
}
Boom(targetDir);
return(true);
}