/// <summary>
/// Gets the user storing the file at recovery time
/// </summary>
/// <param name="nodeName">username for storing user</param>
/*private void GetSource(string nodeName){
* PeerNode source = null;
* action = ActionType.Restore;
*
* if (GetClientEvent != null)
* source = GetClientEvent(nodeName);
* if (source != null){
* SendMessage("LET" + " " + this.IP + " " + this.Name + " " + this.PubKey);
* if(LogEvent != null) LogEvent(source.Name, false, "LET" + " " + this.IP + " " + this.Name + " " + this.PubKey);
* }
* else{
* SendMessage("405");
* if(LogEvent != null) LogEvent(nodeName, false, "405");
* }
* }*/
internal void SendSession(PeerSession session, SessionType type, bool isIndexSession)
{
string action = string.Empty;
MessageContext ctx = MessageContext.Generic;
session.Kind = type;
bool synchronous = false;
if (type == SessionType.Backup)
{
ctx = MessageContext.Task;
action = "ASKSTORAGE";
}
else if (type == SessionType.Store)
{
action = "STORE";
// wait for confirmation that the receive/store session has been started on storage node.
// We avoid client node to connect to a storage node that is not yet ready.
synchronous = true;
}
SendMessage(new NodeMessage {
Context = ctx,
TaskId = session.TaskId,
Action = action,
Data = session.ToJson <PeerSession>(),
Data2 = isIndexSession.ToString(),
Synchroneous = synchronous
});
}
/// <summary>
/// Send used space Hub, in order to update storagegroup available space
/// </summary>
public void SendSessionUpdate(PeerSession s)
{
this.StorageSize -= s.RealHandledData;
HubWrite(new NodeMessage {
Context = MessageContext.Task,
TaskId = s.TaskId,
Action = "SESSION",
Data = s.ToJson <PeerSession>()
//Data2 = sessionId+""
});
}
/// <summary>
/// Request a destination for data chunks.
/// Hub replies with Session object.
/// </summary>
private static void AskStorage(PeerSession s, int parallelism, bool isIndex, bool alternateRequest)
{
string action = "ASKSTORAGE";
if (isIndex)
{
action = "INDEXSTORAGE";
}
HubWrite(new NodeMessage {
Context = MessageContext.Task,
Action = action,
TaskId = s.TaskId,
Data = s.ToJson <PeerSession>(),
Data2 = string.Format("{0} {1}", parallelism, alternateRequest)
});
}