/// <summary>
/// Perform file compression or decompression action
/// </summary>
/// <param name="actionType">Action name. Possible values: compress, decompress</param>
/// <param name="workersCount">Number of threads</param>
/// <param name="chunkSize">Chunk size in bytes</param>
/// <param name="errors">Exceptions</param>
/// <returns>Operation result</returns>
public bool Execute(string actionType, int workersCount, int chunkSize, out List <Exception> errors)
{
ChunksInfo chunkInfos = _fileSplitterFactory.Create(actionType).GetChunks(_inFile, chunkSize);
using (IWriterTask fileWriterTask = _taskFactory.CreatWriterTask(chunkInfos.ChunksCount, _chunkWriter, _errorLogs))
using (IChunksReader chunksReader = _taskFactory.CreateChunksReader(workersCount, _sourceReader,
_compressorFactory.Create(actionType), fileWriterTask, _errorLogs))
{
foreach (ChunkReadInfo chunkInfo in chunkInfos.Chunks)
{
chunksReader.EnqueueChunk(new ChunkReadInfo(chunkInfo.Id, chunkInfo.Offset, chunkInfo.BytesCount));
}
while (true)
{
if (!_errorLogs.IsErrorExist(out List <Exception> exceptions))
{
if (!IsActiveOp(chunksReader, fileWriterTask))
{
return(!_errorLogs.IsErrorExist(out errors));
}
continue;
}
errors = exceptions;
return(false);
}
}
}
public int Start()
{
if (!_settingsChecker.CheckSettings())
{
_messageService.Message(Properties.Resources.UnableToProceed);
//завершение программы потому что сеттинги плохие
return(0);
}
switch (_settings.Mode)
{
case ApplicationMode.Compress:
{
//необходимо разделить контекст поэтому фабрика а не прямая зависимость
using (var compressor = _compressorFactory.Create())
{
if (compressor.Compress())
{
return(1);
}
}
return(0);
}
case ApplicationMode.Decompress:
{
//необходимо разделить контекст поэтому фабрика а не прямая зависимость
using (var decompressor = _decompressorFactory.Create())
{
if (decompressor.Decompress())
{
return(1);
}
}
return(0);
}
default:
return(0);
}
}
public void FactoryWillCreateGZipCompressObj()
{
IGZipCompressor gzipCompressor = _compressorFactory.Create(Constants.Compress);
Assert.IsAssignableFrom <GZipCompress>(gzipCompressor);
}
