public RemoteFileMetadata AddFileFragmentData(Uri uri, uint index)
{
RemoteFileFragmentMetadata metadata = new RemoteFileFragmentMetadata(uri, index);
m_FileData.Add(metadata);
Sort();
return(this);
}
private void BeginDownloadRequest(RemoteFileFragmentMetadata fragmentMetadata)
{
// Request
HTTPRequest request =
PreparePartialDownloadRequest(fragmentMetadata.uri.AbsoluteUri);
fragmentMetadata.BeginDownload();
SendDownloadRequest(request);
}
private void BeginHeadRequest(RemoteFileFragmentMetadata fragmentMetadata)
{
HTTPRequest headRequest = new HTTPRequest(fragmentMetadata.uri,
HTTPMethods.Head,
OnHeadRequestComplete);
fragmentMetadata.BeginHeadRequest();
DoHeadRequest(headRequest);
}
private void OnDownloadFinish(RemoteFileFragmentMetadata fragment)
{
Debug.Log("On request finish");
OnDownloadComplete();
if (AreDownloadsFinished())
{
//mDownloadComplete = true;
OnAllDownloadsFinished();
}
}
public RemoteFileFragmentMetadata GetFileFragmentDataFromUri(string absoluteUri)
{
for (int i = 0; i < GetFileFragments().Count; ++i)
{
RemoteFileFragmentMetadata fragment = GetFileFragments()[i];
if (fragment.uri.AbsoluteUri == absoluteUri)
{
return(fragment);
}
}
return(null);
}
public bool IsFinishedDownloading()
{
for (int i = 0; i < GetFileFragments().Count; ++i)
{
RemoteFileFragmentMetadata fragment = GetFileFragments()[i];
if (!fragment.IsFinishedDownloading())
{
return(false);
}
}
return(true);
}
public bool AreHeadRequestsCompleted()
{
for (int i = 0; i < GetFileFragments().Count; ++i)
{
RemoteFileFragmentMetadata fragment = GetFileFragments()[i];
if (!(fragment.IsReadyForDownload() ||
fragment.IsDownloading() ||
fragment.IsFinishedDownloading()))
{
return(false);
}
}
return(true);
}
private void OnDownloadProcessing(HTTPRequest request, HTTPResponse response)
{
Debug.Assert(response != null);
Debug.Log("Processing request from " + request.Uri.AbsoluteUri);
RemoteFileFragmentMetadata fragmentMetadata =
m_RemoteFileMetadata.GetFileFragmentDataFromUri(request.Uri.AbsoluteUri);
Debug.Log("Fragment index: " + fragmentMetadata.index);
lock (fragmentMetadata) {
if (!response.HasStreamedFragments())
{
return;
}
List <byte[]> fragmentBytesList = response.GetStreamedFragments();
//if (lastDownloadedURI == request.Uri.AbsoluteUri) {
// Debug.LogWarning("Download callback called twice in a row -- ignoring the second one");
// return;
//}
if (fragmentBytesList == null)
{
return;
}
for (int i = 0; i < fragmentBytesList.Count; ++i)
{
byte[] fragmentBytes = fragmentBytesList[i];
int offset =
m_RemoteFileMetadata.GetFileFragmentMemoryOffset(fragmentMetadata)
+ (int)fragmentMetadata.GetDownloadedBytes();
int length = fragmentBytes.Length;
Debug.Log("Copying " + length + " bytes at offset " + offset);
CopyDownloadedFragment(offset, length, ref fragmentBytes);
fragmentMetadata.AddDownloadedBytes(length);
Interlocked.Add(ref mDownloadedContentSize, length);
Debug.Log("Downloaded content size: " + mDownloadedContentSize + " / " + mContentSize);
}
fragmentMetadata.ProcessGetResponse(response);
}
lastDownloadedURI = request.Uri.AbsoluteUri; // for error checking
}
/// <summary>
/// Get this fragment's offset in the buffer. Previous fragments must finish downloading though to make their
/// content length known (in chunked encoding) though
/// </summary>
/// <param name="fragment"></param>
/// <returns>The offset in memory to which this fragment should be copied to</returns>
public int GetFileFragmentMemoryOffset(RemoteFileFragmentMetadata fragment)
{
int offset = 0;
for (int i = 0; i < GetFileFragments().Count; i++)
{
RemoteFileFragmentMetadata currentFragment = GetFileFragments()[i];
if (currentFragment != fragment)
{
offset += (int)currentFragment.GetSize();
}
else
{
break;
}
}
return(offset);
}
private void OnHeadRequestComplete(HTTPRequest request, HTTPResponse response)
{
if (response == null)
{
OnHeadRequestError(request);
return;
}
RemoteFileFragmentMetadata fragment =
m_RemoteFileMetadata.GetFileFragmentDataFromUri(request.Uri.AbsoluteUri);
fragment.ProcessHeadResponse(response);
Debug.Log("Head request is complete. Status code: " + response.StatusCode);
if (m_RemoteFileMetadata.AreHeadRequestsCompleted())
{
OnAllHeadRequestsComplete();
}
}
public bool IsValid()
{
for (int i = 0; i < GetFileFragments().Count; i++)
{
RemoteFileFragmentMetadata fragment = GetFileFragments()[i];
if (fragment == null)
{
Debug.LogWarning("FileFragmentData is NULL");
return(false);
}
if (fragment.index != i)
{
Debug.LogWarning("FileFragmentData index is " + fragment.index +
" but should be " + i);
return(false);
}
}
return(true);
}
public RemoteFileMetadata AddFileFragmentData(RemoteFileFragmentMetadata metadata)
{
m_FileData.Add(metadata);
Sort();
return(this);
}
