static internal void AddEntry(NameValuePermission kvtree, ArrayList entries, DBConnectionString entry)
{
Debug.Assert(null != entry, "null DBConnectionString");
if (null != entry.KeyChain)
{
for (NameValuePair keychain = entry.KeyChain; null != keychain; keychain = keychain.Next)
{
NameValuePermission kv;
kv = kvtree.CheckKeyForValue(keychain.Name);
if (null == kv)
{
kv = new NameValuePermission(keychain.Name);
kvtree.Add(kv); // add directly into live tree
}
kvtree = kv;
kv = kvtree.CheckKeyForValue(keychain.Value);
if (null == kv)
{
DBConnectionString insertValue = ((null != keychain.Next) ? null : entry);
kv = new NameValuePermission(keychain.Value, insertValue);
kvtree.Add(kv); // add directly into live tree
if (null != insertValue)
{
entries.Add(insertValue);
}
}
else if (null == keychain.Next) // shorter chain potential
{
if (null != kv._entry)
{
entries.Remove(kv._entry);
kv._entry = kv._entry.MergeIntersect(entry); // union new restrictions into existing tree
}
else
{
kv._entry = entry;
}
entries.Add(kv._entry);
}
kvtree = kv;
}
}
else // global restrictions, MDAC 84443
{
DBConnectionString kentry = kvtree._entry;
if (null != kentry)
{
entries.Remove(kentry);
kvtree._entry = kentry.MergeIntersect(entry);
}
else
{
kvtree._entry = entry;
}
entries.Add(kvtree._entry);
}
}
internal void Intersect(ArrayList entries, NameValuePermission target)
{
if (null == target)
{
_tree = null;
_entry = null;
}
else
{
if (null != _entry)
{
entries.Remove(_entry);
_entry = _entry.MergeIntersect(target._entry);
entries.Add(_entry);
}
else if (null != target._entry)
{
_entry = target._entry.MergeIntersect(null);
entries.Add(_entry);
}
if (null != _tree)
{
int count = _tree.Length;
for (int i = 0; i < _tree.Length; ++i)
{
NameValuePermission kvtree = target.CheckKeyForValue(_tree[i]._value);
if (null != kvtree) // does target tree contain our value
{
_tree[i].Intersect(entries, kvtree);
}
else
{
_tree[i] = null;
--count;
}
}
if (0 == count)
{
_tree = null;
}
else if (count < _tree.Length)
{
NameValuePermission[] kvtree = new NameValuePermission[count];
for (int i = 0, j = 0; i < _tree.Length; ++i)
{
if (null != _tree[i])
{
kvtree[j++] = _tree[i];
}
}
}
}
}
}
