// Creates a proxy with interface of remote instance
public void createSendChannel(string address)
{
EndpointAddress baseAddress = new EndpointAddress(address);
WSHttpBinding binding = new WSHttpBinding();
factory = new ChannelFactory <IMessagePassing>(binding, address);
channel = factory.CreateChannel();
}
// Uploads file to Receiver instance
public bool postFile(string fileName, string storagePath, long blockSize, string toAddress, string toPath)
{
if (toAddress == lastUrl)
{
return(postFileTry(fileName, storagePath, blockSize, channel, toPath));
}
else
{
close();
try
{
IMessagePassing newChannel = createNewSendChannel(toAddress);
lastUrl = toAddress;
return(postFileTry(fileName, storagePath, blockSize, newChannel, toPath));
}
catch (Exception ex)
{
Console.WriteLine("\n Exception Raised!!");
Console.WriteLine("\n Port already in use");
Console.WriteLine(ex.Message);
return(false);
}
}
}
// Helper function which tries to send the file block through the specified channel
private bool postFileTry(string fileName, string storagePath, long blockSize, IMessagePassing channel, string toPath)
{
FileStream fs = null;
long bytesRemaining;
try
{
string path = Path.Combine(storagePath, fileName);
fs = File.OpenRead(path);
bytesRemaining = fs.Length;
channel.openFileForWrite(toPath, fileName);
while (true)
{
long bytesToRead = Math.Min(blockSize, bytesRemaining);
byte[] blk = new byte[bytesToRead];
long numBytesRead = fs.Read(blk, 0, (int)bytesToRead);
bytesRemaining -= numBytesRead;
channel.writeFileBlock(blk);
if (bytesRemaining <= 0)
{
break;
}
}
channel.closeFile();
fs.Close();
}
catch (Exception ex)
{
lastError = ex.Message;
return(false);
}
return(true);
}
