/// <include file='doc\MessageQueuePermission.uex' path='docs/doc[@for="MessageQueuePermission.Intersect"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override IPermission Intersect(IPermission target)
{
if (target == null)
{
return(null);
}
if (!(target is MessageQueuePermission))
{
throw new ArgumentException(Res.GetString(Res.InvalidParameter, "target", target.ToString()));
}
MessageQueuePermission targetQueuePermission = (MessageQueuePermission)target;
if (this.IsUnrestricted())
{
return(targetQueuePermission.Copy());
}
if (targetQueuePermission.IsUnrestricted())
{
return(this.Copy());
}
this.ResolveFormatNames();
targetQueuePermission.ResolveFormatNames();
MessageQueuePermission newPermission = new MessageQueuePermission();
Hashtable newFormatNames = new Hashtable(GetComparer());
newPermission.resolvedFormatNames = newFormatNames;
IDictionaryEnumerator formatNamesEnumerator;
Hashtable formatNamesTable;
if (this.resolvedFormatNames.Count < targetQueuePermission.resolvedFormatNames.Count)
{
formatNamesEnumerator = this.resolvedFormatNames.GetEnumerator();
formatNamesTable = targetQueuePermission.resolvedFormatNames;
}
else
{
formatNamesEnumerator = targetQueuePermission.resolvedFormatNames.GetEnumerator();
formatNamesTable = this.resolvedFormatNames;
}
while (formatNamesEnumerator.MoveNext())
{
if (formatNamesTable.ContainsKey(formatNamesEnumerator.Key))
{
string currentFormatName = (string)formatNamesEnumerator.Key;
MessageQueuePermissionAccess currentAccess = (MessageQueuePermissionAccess)formatNamesEnumerator.Value;
MessageQueuePermissionAccess targetAccess = (MessageQueuePermissionAccess)formatNamesTable[currentFormatName];
newFormatNames.Add(currentFormatName, currentAccess & targetAccess);
}
}
return(newPermission);
}
/// <include file='doc\MessageQueuePermission.uex' path='docs/doc[@for="MessageQueuePermission.Union"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override IPermission Union(IPermission target)
{
if (target == null)
{
return(this.Copy());
}
if (!(target is MessageQueuePermission))
{
throw new ArgumentException(Res.GetString(Res.InvalidParameter, "target", target.ToString()));
}
MessageQueuePermission targetQueuePermission = (MessageQueuePermission)target;
MessageQueuePermission newPermission = new MessageQueuePermission();
if (this.IsUnrestricted() || targetQueuePermission.IsUnrestricted())
{
newPermission.isUnrestricted = true;
return(newPermission);
}
Hashtable newFormatNames = new Hashtable(GetComparer());
this.ResolveFormatNames();
targetQueuePermission.ResolveFormatNames();
IDictionaryEnumerator formatNamesEnumerator = this.resolvedFormatNames.GetEnumerator();
IDictionaryEnumerator targetFormatNamesEnumerator = targetQueuePermission.resolvedFormatNames.GetEnumerator();
while (formatNamesEnumerator.MoveNext())
{
newFormatNames[(string)formatNamesEnumerator.Key] = formatNamesEnumerator.Value;
}
while (targetFormatNamesEnumerator.MoveNext())
{
if (!newFormatNames.ContainsKey(targetFormatNamesEnumerator.Key))
{
newFormatNames[targetFormatNamesEnumerator.Key] = targetFormatNamesEnumerator.Value;
}
else
{
MessageQueuePermissionAccess currentAccess = (MessageQueuePermissionAccess)newFormatNames[targetFormatNamesEnumerator.Key];
newFormatNames[targetFormatNamesEnumerator.Key] = currentAccess | (MessageQueuePermissionAccess)targetFormatNamesEnumerator.Value;
}
}
newPermission.resolvedFormatNames = newFormatNames;
return(newPermission);
}
/// <include file='doc\MessageQueuePermission.uex' path='docs/doc[@for="MessageQueuePermission.IsSubsetOf"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override bool IsSubsetOf(IPermission target)
{
if (target == null)
{
return(false);
}
if (!(target is MessageQueuePermission))
{
throw new ArgumentException(Res.GetString(Res.InvalidParameter, "target", target.ToString()));
}
MessageQueuePermission targetQueuePermission = (MessageQueuePermission)target;
if (targetQueuePermission.IsUnrestricted())
{
return(true);
}
else if (this.IsUnrestricted())
{
return(false);
}
this.ResolveFormatNames();
targetQueuePermission.ResolveFormatNames();
//If one of the tables is empty the subset cannot be resolved reliably, should assume
//then that they are not subset of each other.
if ((this.resolvedFormatNames.Count == 0 && targetQueuePermission.resolvedFormatNames.Count != 0) ||
(this.resolvedFormatNames.Count != 0 && targetQueuePermission.resolvedFormatNames.Count == 0))
{
return(false);
}
//If the target table contains a wild card, all the current formatName access need to be
//a subset of the target.
IDictionaryEnumerator formatNamesEnumerator;
if (targetQueuePermission.resolvedFormatNames.ContainsKey(Any))
{
MessageQueuePermissionAccess targetAccess = (MessageQueuePermissionAccess)targetQueuePermission.resolvedFormatNames[Any];
formatNamesEnumerator = this.resolvedFormatNames.GetEnumerator();
while (formatNamesEnumerator.MoveNext())
{
MessageQueuePermissionAccess currentAccess = (MessageQueuePermissionAccess)formatNamesEnumerator.Value;
if ((currentAccess & targetAccess) != currentAccess)
{
return(false);
}
}
return(true);
}
//If the current table contains a wild card it can be treated as any other format name.
formatNamesEnumerator = this.resolvedFormatNames.GetEnumerator();
while (formatNamesEnumerator.MoveNext())
{
string currentFormatName = (string)formatNamesEnumerator.Key;
if (!targetQueuePermission.resolvedFormatNames.ContainsKey(currentFormatName))
{
return(false);
}
else
{
MessageQueuePermissionAccess currentAccess = (MessageQueuePermissionAccess)formatNamesEnumerator.Value;
MessageQueuePermissionAccess targetAccess = (MessageQueuePermissionAccess)targetQueuePermission.resolvedFormatNames[currentFormatName];
if ((currentAccess & targetAccess) != currentAccess)
{
return(false);
}
}
}
return(true);
}