/// <summary>
/// extracts a file from the archive, decompresses it and returns the file information.
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public ArchiveFile GetFile(String fileName)
{
// get the index file:
ArchiveFileIndex index = _index[fileName];
// return the archive file object
return(GetFile(index));
}
/// <summary>
/// extract an archive file from the source stream.
/// </summary>
/// <param name="source"></param>
/// <param name="index"></param>
/// <returns></returns>
public static ArchiveFile ExtractArchive(Stream source, ArchiveFileIndex index)
{
// seek to the start index of the file:
source.Seek(index.FileStartIndex, SeekOrigin.Begin);
// read the block of data:
byte[] archiveData = ReadBuffer(source, index.FileLength);
// deserialize the file:
return(ArchiveFile.FromByteArray(archiveData));
}
/// <summary>
/// extract an archive file from the source stream.
/// </summary>
/// <param name="source"></param>
/// <param name="index"></param>
/// <returns></returns>
public static ArchiveFile ExtractArchive(Stream source, ArchiveFileIndex index)
{
// seek to the start index of the file:
source.Seek(index.FileStartIndex, SeekOrigin.Begin);
// read the block of data:
byte[] archiveData = ReadBuffer(source, index.FileLength);
// deserialize the file:
return ArchiveFile.FromByteArray(archiveData);
}
/// <summary>
/// extracts a file from the archive using the index.
/// </summary>
/// <param name="fileIndex"></param>
/// <returns></returns>
public ArchiveFile GetFile(ArchiveFileIndex fileIndex)
{
using (Stream s = GetStream())
return fileIndex.ExtractFile(s);
}
/// <summary>
/// extracts a file from the archive using the index.
/// </summary>
/// <param name="fileIndex"></param>
/// <returns></returns>
public ArchiveFile GetFile(ArchiveFileIndex fileIndex)
{
using (Stream s = GetStream())
return(fileIndex.ExtractFile(s));
}
