protected void checkCommandServer()
{
ClientThread ct = commandServer.getClientThread();
if (ct != null)
{
clientThreads.Add(ct);
}
}
// Send indexes to all trusted nodes that are online
// For use after a backup and associated index insertion have occurred
public void sendIndexes()
{
IndexDatabase idd = new IndexDatabase();
if (!idd.TablesEmpty()) //if there are indexes to send
{
DistributionDatabase ddb = new DistributionDatabase();
List <string> guidList = new List <string>();
NodeDatabase ndb = new NodeDatabase();
string online = "online";
string indexDBCopy = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + @"\indexes_" + (Properties.Settings.Default.guid).ToString() + ".s3db";
if (System.IO.File.Exists(idd.GetPathFileName()))
{
try
{
System.IO.File.Copy(idd.GetPathFileName(), indexDBCopy, true);
}
catch (System.IO.IOException e)
{
Debug.Print(e.Message);
}
}
guidList = ndb.SelectGUID();
foreach (string currentGUID in guidList)
{
if (Node.GetGuid() != Guid.Parse(currentGUID) && ddb.GetStatus(currentGUID) == online && ndb.SelectNodeTrusted(Guid.Parse(currentGUID)) == "yes")
{
Guid myGuid = Node.GetGuid();
TcpClient tcpClient = new TcpClient((ndb.SelectNodeIp(Guid.Parse(currentGUID))).ToString(), 7890);
ClientThread ct = new ClientThread(tcpClient, false, myGuid);
PushIndexRequest pir = new PushIndexRequest(indexDBCopy, new FileInfo(indexDBCopy).Length);
ct.EnqueueWork(pir);
NetworkResponse response = (NetworkResponse)ct.DequeueEvent();
while (ct.IsWorking())
{
Thread.Sleep(1000);
}
ct.RequestStop();
while (ct.IsAlive())
{
Thread.Sleep(1000);
}
}
}
}
}
/// <summary>
/// Listen for new connections. As they arrive, spin-up a new client thread to receive the message.
/// </summary>
private void RunServerThread()
{
tcpListener.Start();
while (keepGoing)
{
try
{
TcpClient tcpClient = tcpListener.AcceptTcpClient();
ClientThread clientThread = new ClientThread(tcpClient, true, guid);
lock (clientThreads)
{
clientThreads.Enqueue(clientThread);
}
}
catch
{
Logger.Error("CommandServer:RunServerThread Error when accepting TcpClient.");
break;
}
}
}
public static void testSendBackup()
{
string path = "C:\\Users\\James\\Desktop\\temp\\scratch 2\\How I Met Your Mother Season 06 Episode 24 - Challange Accepted.avi";
Guid myGuid = Guid.NewGuid();
TcpClient tcpClient = new TcpClient("172.18.9.11", 7890);
ClientThread ct = new ClientThread(tcpClient, false, myGuid);
PushRequest pr = new PushRequest(IPAddress.Parse(Node.GetInternetAddress()), myGuid, 777);
pr.BackupNumber = 4;
pr.ChunkNumber = 5;
pr.Path = path;
pr.FileSize = new FileInfo(path).Length;
ct.EnqueueWork(pr);
int x = 0;
/*while (ct.EventCount() == 0)
{
x++;
Thread.Sleep(1000);
Print("waiting for response. " + x);
}
NetworkResponse response = (NetworkResponse)ct.DequeueEvent();
Print("response: " + response.Type + " reason: " + response.Reason);*/
while (ct.IsWorking())
{
x++;
Thread.Sleep(1000);
Print("waiting for thread to finish working. " + x);
}
Print("thread finished working. " + x);
ct.RequestStop();
Print("requested stop");
while (ct.IsAlive())
{
x++;
Thread.Sleep(1000);
Print("waiting for thread to die. " + x);
}
Print("thread dead.");
Console.WriteLine("press a key to continue");
Console.ReadKey();
}
// Send indexes to a specific node
// Use after a node comes online
public void sendIndexes(string guid)
{
NodeDatabase ndb = new NodeDatabase();
IndexDatabase idd = new IndexDatabase();
if (!idd.TablesEmpty()) //if there are indexes to send
{
string indexDBCopy = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + @"\indexes_" + (Properties.Settings.Default.guid).ToString() + ".s3db";
if (System.IO.File.Exists(idd.GetPathFileName()))
{
try
{
System.IO.File.Copy(idd.GetPathFileName(), indexDBCopy, true);
}
catch (System.IO.IOException e)
{
Debug.Print(e.Message);
}
}
Guid myGuid = Node.GetGuid();
TcpClient tcpClient = new TcpClient((ndb.SelectNodeIp(Guid.Parse(guid))).ToString(), 7890);
ClientThread ct = new ClientThread(tcpClient, false, myGuid);
PushIndexRequest pir = new PushIndexRequest(indexDBCopy, new FileInfo(indexDBCopy).Length);
ct.EnqueueWork(pir);
NetworkResponse response = (NetworkResponse)ct.DequeueEvent();
while (ct.IsWorking())
{
Thread.Sleep(1000);
}
ct.RequestStop();
while (ct.IsAlive())
{
Thread.Sleep(1000);
}
}
}
protected void processNetworkEvent(ClientThread ct, NetworkEvent ne)
{
Logger.Debug("EchoBackupService:processNetworkEvent");
if (ne is NetworkResponse)
{
processNetworkResponse(ct, (NetworkResponse)ne);
}
else if (ne is QueryRequest)
{
processQueryRequest(ct, (QueryRequest)ne);
}
else if (ne is PushRequest)
{
processPushRequest(ct, (PushRequest)ne);
}
else if (ne is PullRequest)
{
processPullRequest(ct, (PullRequest)ne);
}
else if (ne is PushIndexRequest)
{
processPushIndexRequest(ct, (PushIndexRequest)ne);
}
}
/// <summary>
/// Listen for new connections. As they arrive, spin-up a new client thread to receive the message.
/// </summary>
private void RunServerThread()
{
tcpListener.Start();
while (keepGoing)
{
try
{
TcpClient tcpClient = tcpListener.AcceptTcpClient();
ClientThread clientThread = new ClientThread(tcpClient, true, guid);
lock (clientThreads)
{
clientThreads.Enqueue(clientThread);
}
}
catch
{
Logger.Error("CommandServer:RunServerThread Error when accepting TcpClient.");
break;
}
}
}
protected void checkStorageThread()
{
if (storageThread.NumChunks() > 0)
{
Chunk chunk = storageThread.DequeueChunk();
Logger.Debug("EchoBackupService:checkStorageThread Finished archiving chunk.");
//identify host(s) to send to.
List<GuidAndIP> gai = NetworkFunctions.GetOnlineNodesIPAddresses();
if (gai.Count < 2)
{
Logger.Warn("EchoBackupService:checkStorageThread not enough online hosts. hosts online: " + gai.Count);
}
//send chunk to hosts.
List<Block> blocks = new List<Block>();
long filesize = new FileInfo(chunk.Path()).Length;
for (int i = 0; i < 2 && i < gai.Count; i++)
{
TcpClient tc = new TcpClient(gai[i].ipAddress.ToString(), CommandServer.SERVER_PORT);
ClientThread ct = new ClientThread(tc, false, this.guid);
PushRequest pr = new PushRequest(Node.GetIPAddress(), this.guid, MiscFunctions.Next());
pr.Path = chunk.Path();
pr.FileSize = filesize;
pr.BackupNumber = chunk.BackupID();
pr.ChunkNumber = chunk.ChunkID();
ct.EnqueueWork(pr);
lock (clientThreads)
{
clientThreads.Add(ct);
}
blocks.Add(new Block(this.guid.ToString(), gai[i].guid.ToString(), "bad storage path", filesize, MiscFunctions.DBDateAndTime()));
}
//do something with the index so we know about this backup
//store files in BackupIndex
IndexDatabase idb = new IndexDatabase();
foreach (FileInChunk fic in chunk.Files())
{
BackupIndex bi = new BackupIndex();
string fullpath = Path.Combine(chunk.BasePath(), fic.path);
if (Directory.Exists(fullpath)) continue;
bi.backupLevel = 0;
bi.dateAndTime = MiscFunctions.DBDateAndTime();
bi.firstBlockOffset = 0;
bi.size = new FileInfo(fullpath).Length;
bi.sourceGUID = this.guid.ToString();
bi.sourcePath = fullpath;
//todo: we cannot insert multiple blocks for every file. that is what the index-to-block table is for
//idb.InsertIndex(bi, blocks);
}
//store indexes in DB
}
if (storageThread.NumRecoverStructs() > 0)
{
RecoverResult rs = storageThread.DequeueRecoverResult();
lock (recoverResults)
{
recoverResults.Enqueue(rs);
}
}
}
//tests sending a QueryRequest and receiving a response
static void testQueryRequestClient()
{
Guid myGuid = Guid.NewGuid();
TcpClient tcpClient = new TcpClient("172.18.9.11", 7890);
ClientThread ct = new ClientThread(tcpClient, false, myGuid);
QueryRequest qr = new QueryRequest(IPAddress.Parse(Node.GetInternetAddress()), myGuid, 777);
qr.QueryType = QueryType.Hostname;
ct.EnqueueWork(qr);
int x = 0;
while (ct.EventCount() == 0)
{
x++;
Thread.Sleep(1000);
Print("waiting for response. " + x);
}
NetworkResponse response = (NetworkResponse) ct.DequeueEvent();
Print("response: " + response.Type + " reason: " + response.Reason);
ct.RequestStop();
Print("requested stop");
while (ct.IsAlive())
{
x++;
Thread.Sleep(1000);
Print("waiting for thread to die. " + x);
}
Print("thread dead.");
Console.WriteLine("press a key to continue");
Console.ReadKey();
}
protected void processNetworkResponse(ClientThread ct, NetworkResponse response)
{
Logger.Debug("EchoBackupService:processNetworkResponse doing nothing");
//todo
}
// Send indexes to all trusted nodes that are online
// For use after a backup and associated index insertion have occurred
public void sendIndexes()
{
IndexDatabase idd = new IndexDatabase();
if (!idd.TablesEmpty()) //if there are indexes to send
{
DistributionDatabase ddb = new DistributionDatabase();
List<string> guidList = new List<string>();
NodeDatabase ndb = new NodeDatabase();
string online = "online";
string indexDBCopy = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + @"\indexes_" + (Properties.Settings.Default.guid).ToString() + ".s3db";
if (System.IO.File.Exists(idd.GetPathFileName()))
{
try
{
System.IO.File.Copy(idd.GetPathFileName(), indexDBCopy, true);
}
catch (System.IO.IOException e)
{
Debug.Print(e.Message);
}
}
guidList = ndb.SelectGUID();
foreach (string currentGUID in guidList)
{
if (Node.GetGuid() != Guid.Parse(currentGUID) && ddb.GetStatus(currentGUID) == online && ndb.SelectNodeTrusted(Guid.Parse(currentGUID)) == "yes")
{
Guid myGuid = Node.GetGuid();
TcpClient tcpClient = new TcpClient((ndb.SelectNodeIp(Guid.Parse(currentGUID))).ToString(), 7890);
ClientThread ct = new ClientThread(tcpClient, false, myGuid);
PushIndexRequest pir = new PushIndexRequest(indexDBCopy, new FileInfo(indexDBCopy).Length);
ct.EnqueueWork(pir);
NetworkResponse response = (NetworkResponse)ct.DequeueEvent();
while (ct.IsWorking())
{
Thread.Sleep(1000);
}
ct.RequestStop();
while (ct.IsAlive())
{
Thread.Sleep(1000);
}
}
}
}
}
// Send indexes to a specific node
// Use after a node comes online
public void sendIndexes(string guid)
{
NodeDatabase ndb = new NodeDatabase();
IndexDatabase idd = new IndexDatabase();
if (!idd.TablesEmpty()) //if there are indexes to send
{
string indexDBCopy = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + @"\indexes_" + (Properties.Settings.Default.guid).ToString() + ".s3db";
if (System.IO.File.Exists(idd.GetPathFileName()))
{
try
{
System.IO.File.Copy(idd.GetPathFileName(), indexDBCopy, true);
}
catch (System.IO.IOException e)
{
Debug.Print(e.Message);
}
}
Guid myGuid = Node.GetGuid();
TcpClient tcpClient = new TcpClient((ndb.SelectNodeIp(Guid.Parse(guid))).ToString(), 7890);
ClientThread ct = new ClientThread(tcpClient, false, myGuid);
PushIndexRequest pir = new PushIndexRequest(indexDBCopy, new FileInfo(indexDBCopy).Length);
ct.EnqueueWork(pir);
NetworkResponse response = (NetworkResponse)ct.DequeueEvent();
while (ct.IsWorking())
{
Thread.Sleep(1000);
}
ct.RequestStop();
while (ct.IsAlive())
{
Thread.Sleep(1000);
}
}
}
protected void processQueryRequest(ClientThread ct, QueryRequest request)
{
Logger.Debug("EchoBackupService:processQueryRequest doing nothing");
//todo
}
protected void processPushIndexRequest(ClientThread ct, PushIndexRequest request)
{
Logger.Debug("EchoBackupService:processPushIndexRequest");
//there probably ought to be some processing here but oh well
ct.EnqueueWork((NetworkRequest)request);
}
protected void processNetworkResponse(ClientThread ct, NetworkResponse response)
{
Logger.Debug("EchoBackupService:processNetworkResponse doing nothing");
//todo
}
protected void processNetworkEvent(ClientThread ct, NetworkEvent ne)
{
Logger.Debug("EchoBackupService:processNetworkEvent");
if (ne is NetworkResponse)
{
processNetworkResponse(ct, (NetworkResponse)ne);
}
else if (ne is QueryRequest)
{
processQueryRequest(ct, (QueryRequest)ne);
}
else if (ne is PushRequest)
{
processPushRequest(ct, (PushRequest)ne);
}
else if (ne is PullRequest)
{
processPullRequest(ct, (PullRequest)ne);
}
else if (ne is PushIndexRequest)
{
processPushIndexRequest(ct, (PushIndexRequest)ne);
}
}
protected void checkStorageThread()
{
if (storageThread.NumChunks() > 0)
{
Chunk chunk = storageThread.DequeueChunk();
Logger.Debug("EchoBackupService:checkStorageThread Finished archiving chunk.");
//identify host(s) to send to.
List <GuidAndIP> gai = NetworkFunctions.GetOnlineNodesIPAddresses();
if (gai.Count < 2)
{
Logger.Warn("EchoBackupService:checkStorageThread not enough online hosts. hosts online: " + gai.Count);
}
//send chunk to hosts.
List <Block> blocks = new List <Block>();
long filesize = new FileInfo(chunk.Path()).Length;
for (int i = 0; i < 2 && i < gai.Count; i++)
{
TcpClient tc = new TcpClient(gai[i].ipAddress.ToString(), CommandServer.SERVER_PORT);
ClientThread ct = new ClientThread(tc, false, this.guid);
PushRequest pr = new PushRequest(Node.GetIPAddress(), this.guid, MiscFunctions.Next());
pr.Path = chunk.Path();
pr.FileSize = filesize;
pr.BackupNumber = chunk.BackupID();
pr.ChunkNumber = chunk.ChunkID();
ct.EnqueueWork(pr);
lock (clientThreads)
{
clientThreads.Add(ct);
}
blocks.Add(new Block(this.guid.ToString(), gai[i].guid.ToString(), "bad storage path", filesize, MiscFunctions.DBDateAndTime()));
}
//do something with the index so we know about this backup
//store files in BackupIndex
IndexDatabase idb = new IndexDatabase();
foreach (FileInChunk fic in chunk.Files())
{
BackupIndex bi = new BackupIndex();
string fullpath = Path.Combine(chunk.BasePath(), fic.path);
if (Directory.Exists(fullpath))
{
continue;
}
bi.backupLevel = 0;
bi.dateAndTime = MiscFunctions.DBDateAndTime();
bi.firstBlockOffset = 0;
bi.size = new FileInfo(fullpath).Length;
bi.sourceGUID = this.guid.ToString();
bi.sourcePath = fullpath;
//todo: we cannot insert multiple blocks for every file. that is what the index-to-block table is for
//idb.InsertIndex(bi, blocks);
}
//store indexes in DB
}
if (storageThread.NumRecoverStructs() > 0)
{
RecoverResult rs = storageThread.DequeueRecoverResult();
lock (recoverResults)
{
recoverResults.Enqueue(rs);
}
}
}
protected void processPushRequest(ClientThread ct, PushRequest request)
{
Logger.Debug("EchoBackupService:processPushRequest");
//there probably ought to be some processing here but oh well
ct.EnqueueWork((NetworkRequest)request);
}
protected void processQueryRequest(ClientThread ct, QueryRequest request)
{
Logger.Debug("EchoBackupService:processQueryRequest doing nothing");
//todo
}
