public static List <ArchiveItem> ReadItems(Stream stream, ArchiveMetaData metadata)
{
if (!stream.CanRead)
{
throw new IOException("this stream does not support read access");
}
var result = new List <ArchiveItem>();
using (var reader = new BinaryReader(stream, Encoding.UTF8, true))
{
if (metadata.Raw.Version == 1)
{
foreach (var file in metadata.Raw.ItemInfos)
{
// read a file data
stream.Position = metadata.PayloadBeginOffset + int.Parse(file.Offset);
var buffer = reader.ReadBytes(int.Parse(file.Length));
result.Add(new ArchiveItem(file.Path, buffer));
}
}
else
{
throw new FormatException("format version is not supported");
}
}
return(result);
}
public static ArchiveItem ReadItem(Stream stream, ArchiveMetaData metadata, ArchiveItemInfo itemInfo)
{
if (!stream.CanRead)
{
throw new IOException("this stream does not support read access");
}
using (var reader = new BinaryReader(stream, Encoding.UTF8, true))
{
if (metadata.Raw.Version == 1)
{
// read a file data
stream.Position = metadata.PayloadBeginOffset + int.Parse(itemInfo.Offset);
var buffer = reader.ReadBytes(int.Parse(itemInfo.Length));
return(new ArchiveItem(itemInfo.Path, buffer));
}
else
{
throw new FormatException("format version is not supported");
}
}
}