private MetaInformationReader()
{
MetaDataServers = new List<ServerObjectWrapper>();
ServerObjectWrapper mds0wrapper = new ServerObjectWrapper(Int32.Parse(Properties.Resources.MDS0_PORT), "m-0", Properties.Resources.MDS0_Host);
ServerObjectWrapper mds1wrapper = new ServerObjectWrapper( Int32.Parse(Properties.Resources.MDS1_PORT), "m-1", Properties.Resources.MDS1_Host );
ServerObjectWrapper mds2wrapper = new ServerObjectWrapper( Int32.Parse(Properties.Resources.MDS2_PORT), "m-2", Properties.Resources.MDS2_Host );
MetaDataServers.Add(mds0wrapper);
MetaDataServers.Add( mds1wrapper );
MetaDataServers.Add( mds2wrapper );
}
public override void execute(MetaDataServer md)
{
Console.WriteLine("#MDS: Registering DS " + DataServerId);
if ( md.DataServers.ContainsKey(DataServerId) )
{
md.DataServers.Remove(DataServerId);
}
ServerObjectWrapper remoteObjectWrapper = new ServerObjectWrapper(DataServerPort, DataServerId, DataServerHost);
md.DataServers.Add(DataServerId, remoteObjectWrapper);
md.addServerToUnbalancedFiles(DataServerId);
HeartbeatMessage heartbeat = new HeartbeatMessage(DataServerId, 0 , 0, 0, 0, new Dictionary<string,FileAccessCounter>());
md.receiveHeartbeat(heartbeat);
md.makeCheckpoint();
}
public void createDataServer(String id)
{
if (!dataServers.ContainsKey(id))
{
int port = Util.getNewPort();
string path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase);
Process.Start(path + "\\DataServer.exe", port + " " + id);
ServerObjectWrapper dataServerWrapper = new ServerObjectWrapper(port, id, "localhost");
dataServers.Add(id, dataServerWrapper);
ControlBoard.printCommand("CREATE " + id);
}
}
public void createClient(String clientId)
{
if (!clients.ContainsKey(clientId))
{
int clientPort = Util.getNewPort();
string path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().CodeBase);
try
{
Process.Start(path + "\\Client.exe", clientPort + " " + clientId);
}
catch (Exception e)
{
System.Windows.Forms.MessageBox.Show("Error creating client:" + e.Message);
}
ServerObjectWrapper clientWrapper = new ServerObjectWrapper(clientPort, clientId, "localhost");
clients.Add(clientId, clientWrapper);
ControlBoard.printCommand("CREATE " + clientId);
}
}
public ListElem(ServerObjectWrapper server, double weight)
{
Server = server;
Weight = weight;
}
