public byte[] Extract(string fpath)
{
Debug.Assert(!string.IsNullOrEmpty(fpath));
fpath = fpath.TrimStart('/');
byte[] content = null;
try
{
var fkey = _files[fpath] as string;
content = _files.ContainsKey(fpath) ? _cache[fkey] as byte[] : null;
if (content == null)
{
if (File.Exists(WebPackage))
{
using (FileStream fs = new FileStream(WebPackage, FileMode.Open, FileAccess.Read, FileShare.Read))
content = ZipStream.Extract(fs, fpath);
}
else
{
// package not exists.
using (MemoryStream fs = new MemoryStream(Resources.ResourceManager.GetObject("web") as byte[]))
content = ZipStream.Extract(fs, fpath);
}
// file not exists in _cache.
if (content != null)
{
string key = _files.ContainsKey(fpath) ? _files[fpath] as string : Guid.NewGuid().ToString();
_cache[key] = content;
_files[fpath] = key;
}
}
}
catch (Exception ex) { TraceLogger.Instance.WriteException(ex); throw; }
return(content);
}
public bool Exists(string fpath)
{
Debug.Assert(!string.IsNullOrEmpty(fpath));
fpath = fpath.TrimStart('/');
bool exists = false;
try
{
exists = _files.ContainsKey(fpath);
if (!exists)
{
if (File.Exists(WebPackage))
{
using (FileStream fs = new FileStream(WebPackage, FileMode.Open, FileAccess.Read, FileShare.Read))
exists = ZipStream.IsExists(fs, fpath);
}
else
{
// package not exists.
using (MemoryStream fs = new MemoryStream(Resources.ResourceManager.GetObject("web") as byte[]))
exists = ZipStream.IsExists(fs, fpath);
}
}
if (exists)
{
if (!_files.ContainsKey(fpath))
{
_files[fpath] = Guid.NewGuid().ToString();
}
}
}
catch (Exception ex) { TraceLogger.Instance.WriteException(ex); throw; }
return(exists);
}