/// <summary>
/// This is the recursive method. I've separated them in this way so that
/// we do not have to waste cycles on any first-case-only processing.
/// </summary>
private void traverseInventory(InventoryRequestData rdata, InventoryFolderBase folder, int pi)
{
int fk = 0;
InventoryFolderBase ffound = null;
InventoryItemBase ifound = null;
Rest.Log.DebugFormat("{0} Traverse Folder : {1} {2} [{3}]", MsgId, folder.ID, folder.Name, pi);
foreach (InventoryFolderBase f in rdata.folders)
{
if (f.ParentID == folder.ID &&
(f.Name == rdata.Parameters[pi] ||
f.ID.ToString() == rdata.Parameters[pi]))
{
fk++;
ffound = f;
}
}
// If this is the last element in the parameter sequence, then
// it is reasonable to check for an item. All intermediate nodes
// MUST be folders.
if (pi == rdata.Parameters.Length-1)
{
// Only if there are any items, and there pretty much always are.
if (rdata.items != null)
{
foreach (InventoryItemBase i in rdata.items)
{
if (i.Folder == folder.ID &&
(i.Name == rdata.Parameters[pi] ||
i.ID.ToString() == rdata.Parameters[pi]))
{
fk++;
ifound = i;
}
}
}
}
if (fk == 1)
{
if (ffound != null)
{
if (pi < rdata.Parameters.Length-1)
{
traverseInventory(rdata, ffound, pi+1);
}
else
{
formatInventory(rdata, ffound, String.Empty);
}
return;
}
else
{
// Fetching an Item has a special significance. In this
// case we also want to fetch the associated asset.
// To make it interesting, we'll do this via redirection.
string asseturl = String.Format("http://{0}:{1}/{2}{3}{4}", rdata.hostname, rdata.port,
"admin/assets",Rest.UrlPathSeparator,ifound.AssetID.ToString());
rdata.Redirect(asseturl,Rest.PERMANENT);
Rest.Log.DebugFormat("{0} Never Reached", MsgId);
}
}
else if (fk > 1)
{
rdata.Fail(Rest.HttpStatusCodeConflict,
String.Format("ambiguous element ({0}) in path specified: <{1}>",
pi, rdata.path));
}
Rest.Log.DebugFormat("{0} Inventory does not contain item/folder: <{1}>",
MsgId, rdata.path);
rdata.Fail(Rest.HttpStatusCodeNotFound,String.Format("no such item/folder : {0}",
rdata.Parameters[pi]));
}