| private static ParseRuleSets ( string uri ) : void | ||
| uri | string | The URI of the business rule configuration file. |
| return | void | |
private static void ParseRuleSets(string uri)
{
RuleSet ruleSet = null;
XmlReader reader = XmlReader.Create (uri);
while (reader.Read ()) {
switch (reader.NodeType) {
case XmlNodeType.Element:
{
if (reader.LocalName.Equals ("forceLoad")) {
string platform = reader ["platform"];
string implementation = reader ["class"];
if (platform.Equals (".Net")) {
try {
Type type = Type.GetType (implementation);
if (type != null) {
// Access each member to ensure it has a chance to initialise
MemberInfo [] members = type.GetMembers ();
if (members != null) {
foreach (MemberInfo member in members) {
if (member.MemberType == MemberTypes.Field) {
type.InvokeMember (member.Name, BindingFlags.GetField, null, null, null);
}
}
}
break;
}
else
logger.Error ("Could not find load rule class '" + implementation + "'");
}
catch (Exception error) {
logger.Error ("Could not force load rule class '" + implementation + "'", error);
}
}
} else if (reader.LocalName.Equals ("ruleSet")) {
string name = reader ["name"];
ruleSet = new RuleSet (name);
}
else if (reader.LocalName.Equals ("addRule")) {
string name = reader ["name"];
Rule rule = Rule.ForName (name);
if (rule != null) {
if (ruleSet != null)
ruleSet.Add (rule);
else
logger.Error ("Syntax error in rule file - addRule outside of RuleSet");
}
else
logger.Error ("Reference to undefined rule '" + name + "' in addRule");
}
else if (reader.LocalName.Equals ("removeRule")) {
string name = reader ["name"];
Rule rule = Rule.ForName (name);
if (rule != null) {
if (ruleSet != null)
ruleSet.Remove (rule);
else
logger.Error ("Syntax error in rule file - removeRule outside of RuleSet");
}
else
logger.Error ("Reference to undefined rule '" + name + "' in addRule");
}
else if (reader.LocalName.Equals ("addRuleSet")) {
string name = reader ["name"];
RuleSet rules = ForName (name);
if (rules != null) {
if (ruleSet != null) {
if (rules != ruleSet)
ruleSet.Add (rules);
else
logger.Error ("Attempt to recursively define ruleset '" + name + "'");
}
else
logger.Error ("Syntax error in rule file - addRuleSet outside of RuleSet");
}
else
logger.Error ("Reference to undefined rule '" + name + "' in addRule");
}
break;
}
case XmlNodeType.EndElement:
{
if (reader.LocalName.Equals ("ruleSet"))
ruleSet = null;
break;
}
}
}
reader.Close ();
}
