public EvaluationResult evaluateExpression(XmlElement expressionDoc, IContext context)
{
// first deserialize expression into a RequiresParticipants instance
RequiresParticipants expression = null;
try
{
XmlNodeReader reader = new XmlNodeReader(expressionDoc);
expression = (RequiresParticipants)serializer.Deserialize(reader);
}
catch (Exception e)
{
throw new PolicyManagerException("Could not deserialize RequiresParticipants node", e);
}
// go through and check if all participants listed in the policy are in the meeting
foreach (string participant in expression.Participant)
{
if (context.Participants[participant] == null)
{
// return "false" as the evaluation result
return(new EvaluationResult(TAG, false, "Participant " + participant + " not in context"));
}
}
// if we got here, it means all participants were found
return(new EvaluationResult(TAG, true, "All participants found in context"));
}
public static void Main(String[] args)
{
RequiresTopic rt = new RequiresTopic();
rt.Topic = "foobar";
RequiresParticipants rp = new RequiresParticipants();
rp.Participant = new String[] { "joe", "bob" };
All all = new All();
all.Any = new XmlElement[] { Util.getXmlElement(rt), Util.getXmlElement(rp) };
Policy policy = new Policy();
policy.Any = Util.getXmlElement(all);
StreamWriter writer = new StreamWriter("testpolicy2.xml");
Util.serialize(policy, writer);
writer.Close();
Console.Out.WriteLine("done");
}