public void OnInvalidMessageReceive(object sender, PacketMessage message)
{
// stop reciving in case of error
if (IsReceiving())
{
_state = PackageBuilderState.IDLE;
}
}
public void OnFileEndReceive(object sender, EventArgs args)
{
// verify current state
if (_state != PackageBuilderState.RECEIVE_FILE_DATA)
{
throw new InvalidOperationException("OnFileHeaderReceive: Invalid internal state - " + _state.ToString());
}
if (_currentFileStrem == null)
{
throw new InvalidOperationException("OnFileHeaderReceive: File stream is empty!");
}
// notify observers
OnFileReciveEnd();
// close file and dispose stream
string fileName = _currentFileStrem.Name;
_currentFileStrem.Close();
_currentFileStrem.Dispose();
_currentFileStrem = null;
// verify file
if (_verifyChecksum)
{
string reveivedFileChecksum = ComputeFileChecksum(fileName);
// verify if the check sum is the same as expected
if (reveivedFileChecksum != _fileChecksum)
{
throw new InvalidOperationException("OnFileHeaderReceive: Invalid checksum - computed(" +
reveivedFileChecksum + ") expected(" + _fileChecksum + ")");
}
}
// reset rest of variables
_expectedFileSize = 0;
_fileChecksum = String.Empty;
// check if we expect another file and go to the next state
_numberOfFilesReceived++;
if (_numberOfFilesReceived < _numberOfExpectedFiles)
{
_state = PackageBuilderState.WAITING_FOR_FILE_BEGIN;
}
else
{
_state = PackageBuilderState.IDLE;
}
}
public void OnFileHeaderReceive(object sender, XmlMessagePackageDataHeader message)
{
// verify current state
if (_state != PackageBuilderState.WAITING_FOR_HEADER)
{
throw new InvalidOperationException("OnFileHeaderReceive: Invalid internal state - " + _state.ToString());
}
// do work
_numberOfExpectedFiles = message.NumberOfFiles;
_fullPackagePath = Path.Combine(_currentRepositoryPath, message.RepositoryName, message.PackageName, message.Version);
if (!Directory.Exists(_fullPackagePath))
{
Directory.CreateDirectory(_fullPackagePath);
}
// goto next state
_state = PackageBuilderState.WAITING_FOR_FILE_BEGIN;
}
public void OnFileBeginReceive(object sender, XmlMessagePackageFileBegin message)
{
// verify current state
if (_state != PackageBuilderState.WAITING_FOR_FILE_BEGIN)
{
throw new InvalidOperationException("OnFileHeaderReceive: Invalid internal state - " + _state.ToString());
}
// open file stream - must be disposed
string filePath = Path.Combine(_fullPackagePath, message.Name);
_currentFileStrem = new FileStream(filePath, FileMode.Create);
_expectedFileSize = message.Size;
_fileChecksum = message.Checksum;
// notify observers
OnFileReciveBegin();
// goto next state
_state = PackageBuilderState.RECEIVE_FILE_DATA;
}
public void StartReceiving(string currentRepositoryPath)
{
_currentRepositoryPath = currentRepositoryPath;
_state = PackageBuilderState.WAITING_FOR_HEADER;
}
