private void AddGrouped(IXenObject o, Object group)
{
// We sometimes need to apply the query to the group. For example, suppose VM 1
// is connected to Network 1 and Network 2. Then "VMs grouped by Network" will
// show
//
// -- Network 1
// -- VM 1
// -- Network 2
// -- VM 1
//
// So far so good. Now consider "VMs connected to Network 1 grouped by Network".
// Without the following piece of code, that would show exactly the same thing:
// because the second VM 1 is connected to Network 1, and is correctly grouped
// in Network 2. But what the user presumably wanted to see was just Network 1
// with its VMs under it: and that is achieved by applying the filter to the
// networks.
//
// The consequence when adding new searches is that a search that returns a
// XenObject of type T must return (T)o rather than null when o is a T,
// otherwise if you both group and filter by that type, the group will fail
// to match the filter and you'll get no results.
//
IXenObject groupModelObject = group as IXenObject;
if (groupModelObject != null && XenAdminConfigManager.Provider.ObjectIsHidden(groupModelObject.opaque_ref))
{
return;
}
if (search.Query != null && groupModelObject != null)
{
QueryFilter subquery = grouping.GetRelevantGroupQuery(search);
if (subquery != null && subquery.Match(groupModelObject) == false)
{
return;
}
}
Group nextGroup;
// Some types of grouping can add several levels to the hierarchy.
// This should not be confused with the IList in Add(IXenObject o):
// that adds the item to several groups, whereas this adds it to a
// single group several levels deep. In order to reach here,
// grouping.GetGroup(o) must return a list of arrays.
//
// NB We don't do the GetRelevantGroupQuery() check as above for the
// groups added in this way because we never need it: but if we ever
// add it, we should probably do a first pass to check all the groups
// first before adding any.
Array groups = group as Array;
if (groups != null)
{
nextGroup = this;
for (int i = 0; i < groups.Length; ++i)
{
Grouping gr = (i == groups.Length - 1 ? grouping.subgrouping : grouping);
nextGroup = (nextGroup as AbstractNodeGroup).FindOrAddSubgroup(grouping, groups.GetValue(i), gr);
}
}
else
{
nextGroup = FindOrAddSubgroup(grouping, group, grouping.subgrouping);
}
nextGroup.Add(o);
}
public bool Match(IXenObject o)
{
return(scope.WantType(o) && o.Show(XenAdminConfigManager.Provider.ShowHiddenVMs) && (filter == null || filter.Match(o) != false));
}
