public string GetChunkAbsolutePath(EcfFileChunkDefinition chunk)
{
Contract.Requires(chunk != null && chunk.Parent == this);
Contract.Assert(WorkingDirectory.IsNotNullOrEmpty());
string abs_path = Path.Combine(WorkingDirectory, chunk.FilePath);
abs_path = Path.GetFullPath(abs_path);
return(abs_path);
}
public EcfFileChunkDefinition Add(EcfChunk rawChunk, int rawChunkIndex)
{
Contract.Requires(rawChunk != null);
var chunk = new EcfFileChunkDefinition();
chunk.Initialize(this, rawChunk, rawChunkIndex);
Chunks.Add(chunk);
return(chunk);
}
bool BuildChunkToStream(IO.EndianStream ecfStream, EcfFileChunkDefinition chunk)
{
bool success = true;
var raw_chunk = mEcfFile.GetChunk(chunk.RawChunkIndex);
using (var chunk_ms = EcfDefinition.GetChunkFileDataStream(chunk))
{
raw_chunk.BuildBuffer(ecfStream, chunk_ms);
}
return(success);
}
void ExpandChunkToFile(EcfFileChunkDefinition chunk, EcfChunk rawChunk)
{
string file_path = EcfDefinition.GetChunkAbsolutePath(chunk);
if (!ExpanderOptions.Test(EcfFileExpanderOptions.DontOverwriteExistingFiles))
{
if (File.Exists(file_path))
{
if (VerboseOutput != null)
{
VerboseOutput.WriteLine("\tSkipping chunk, output file already exists: {0}", file_path);
}
return;
}
}
using (var fs = File.OpenWrite(file_path))
{
var chunk_bytes = rawChunk.GetBuffer(mEcfStream);
fs.Write(chunk_bytes, 0, chunk_bytes.Length);
}
}
internal MemoryStream GetChunkFileDataStream(EcfFileChunkDefinition chunk)
{
Contract.Assume(chunk != null && chunk.Parent == this);
MemoryStream ms;
if (chunk.FileBytes != null)
{
ms = new MemoryStream(chunk.FileBytes, writable: false);
}
else
{
var source_file = GetChunkAbsolutePath(chunk);
using (var fs = File.OpenRead(source_file))
{
ms = new MemoryStream((int)fs.Length);
fs.CopyTo(ms);
}
}
ms.Position = 0;
return(ms);
}
