// sync local with remote item
private void SyncOneItem(ReplicatedItem replicatedItem, ConcurrentContentList items)
{
var local = items.Get(replicatedItem.ID); // get local match for item
if (local != null && local.Published.HasValue)
{
if (IsSlave)
// import if newer than local
{
if (replicatedItem.IsNewerThan(local.Published.Value) || !ExistsLocal(local))
{
_journal.LogItem("import {0} published {1} vs. {2} update",
replicatedItem.ID, replicatedItem.PublishedDateUtc,
local.Published.Value.ToUniversalTime());
ImportItem(replicatedItem);
}
}
if (IsMaster)
{
if (replicatedItem.IsOlderThan(local.Published.Value))
{
_journal.LogItem("export {0} published {1} vs. {2} update",
replicatedItem.ID, replicatedItem.PublishedDateUtc,
local.Published.Value.ToUniversalTime());
_repstore.ExportItem(local);
}
}
// TODO check version is bigger than replaced version
items.Remove(local);
}
else
{
if (IsSlave) // TODO and newer published date
{
_journal.LogItem("import {0} published {1} create",
replicatedItem.ID, replicatedItem.PublishedDateUtc);
ImportItem(replicatedItem);
}
if (IsMaster)
{
// item is not published anymore -> delete replicated item
// TODO signalling - check edge cases, e.g. non-published items that should stay
_journal.LogItem("DELETE item {0} published {1}",
replicatedItem.ID, replicatedItem.PublishedDateUtc);
_repstore.DeleteItem(replicatedItem);
}
}
replicatedItem.Processed = true;
}
// get a list of all local page items to be synchronized
private ConcurrentContentList GetLocalItems()
{
lock (_syncLock)
{
var result = new ConcurrentContentList(_finder.AllOfType<ContentItem>()
.Where(p => p.IsPage && p.IsPublished() && !(p is ISystemNode))); // exclude non managed items
// add root page (if exists) as that may not be derived from our page base class
var rootPage = _finder.AllOfType<ContentItem>().FirstOrDefault(i => i is IRootPage);
if (rootPage != null && !result.Contains(rootPage)) // avoid duplicates
result.Insert(0, rootPage);
return result;
}
}
