public void RuleMLStreamSource()
{
string ruleBase = "<rulebase><fact><_head><atom><_opr><rel>regular</rel></_opr><ind>Honda</ind></atom></_head></fact></rulebase>";
RuleML08DatalogAdapter adapter = new RuleML08DatalogAdapter(new MemoryStream(new UTF8Encoding().GetBytes(ruleBase)),
FileAccess.Read);
IList<Fact> facts = adapter.Facts;
Assert.IsNotNull(facts, "Facts not null");
Assert.AreEqual(1, facts.Count, "One fact expected");
Assert.AreEqual("regular", facts[0].Type, "Fact of type 'regular' expected");
}
public void LoadRules()
{
// prepare the rule base adapter for reading the rule file
string ruleFileFullPath = configurationFolder + Path.DirectorySeparatorChar + RuleFile;
if (Logger.IsInferenceEngineVerbose)
Logger.InferenceEngineSource.TraceEvent(TraceEventType.Verbose,
0,
"Loading rule file: "
+ ruleFileFullPath
+ " of format: "
+ engineConfiguration.Rules.Format);
IRuleBaseAdapter ruleBaseAdapter = null;
switch(engineConfiguration.Rules.Format) {
case RulesFormat.HRF086:
ruleBaseAdapter = new HRF086Adapter(ruleFileFullPath, FileAccess.Read);
break;
case RulesFormat.RuleML08Datalog:
ruleBaseAdapter = new RuleML08DatalogAdapter(ruleFileFullPath, FileAccess.Read);
break;
case RulesFormat.RuleML086Datalog:
ruleBaseAdapter = new RuleML086DatalogAdapter(ruleFileFullPath, FileAccess.Read);
break;
case RulesFormat.RuleML086NafDatalog:
ruleBaseAdapter = new RuleML086NafDatalogAdapter(ruleFileFullPath, FileAccess.Read);
break;
case RulesFormat.RuleML09NafDatalog:
ruleBaseAdapter = new RuleML09NafDatalogAdapter(ruleFileFullPath, FileAccess.Read);
break;
case RulesFormat.Visio2003:
ruleBaseAdapter = new Visio2003Adapter(ruleFileFullPath, FileAccess.Read);
break;
}
// estimate if a binder is present
if (engineConfiguration.Binder != null) {
if (engineConfiguration.Binder is CSharpBinderConfiguration) {
CSharpBinderConfiguration cSharpBinderConfiguration = (CSharpBinderConfiguration)engineConfiguration.Binder;
binderFile = cSharpBinderConfiguration.File;
if (Logger.IsInferenceEngineVerbose)
Logger.InferenceEngineSource.TraceEvent(TraceEventType.Verbose,
0,
"Using CSharp binder file: "
+ binderFile);
// we load the binder code in a string and then compile it: this method is more reliable than
// providing a file path directly
using (StreamReader sr = File.OpenText(configurationFolder + Path.DirectorySeparatorChar + binderFile)) {
engine.LoadRuleBase(ruleBaseAdapter,
CSharpBinderFactory.LoadFromString(cSharpBinderConfiguration.Class, sr.ReadToEnd()));
}
}
else if (engineConfiguration.Binder is VisualBasicBinderConfiguration) {
VisualBasicBinderConfiguration visualBasicBinderConfiguration = (VisualBasicBinderConfiguration)engineConfiguration.Binder;
binderFile = visualBasicBinderConfiguration.File;
if (Logger.IsInferenceEngineVerbose)
Logger.InferenceEngineSource.TraceEvent(TraceEventType.Verbose,
0,
"Using Visual Basic binder file: "
+ binderFile);
// we load the binder code in a string and then compile it: this method is more reliable than
// providing a file path directly
using (StreamReader sr = File.OpenText(configurationFolder + Path.DirectorySeparatorChar + binderFile)) {
engine.LoadRuleBase(ruleBaseAdapter,
VisualBasicBinderFactory.LoadFromString(visualBasicBinderConfiguration.Class, sr.ReadToEnd()));
}
}
else if (engineConfiguration.Binder is NxBRE.InferenceEngine.Registry.FlowEngineBinderConfiguration) {
NxBRE.InferenceEngine.Registry.FlowEngineBinderConfiguration flowEngineBinderConfiguration = (NxBRE.InferenceEngine.Registry.FlowEngineBinderConfiguration)engineConfiguration.Binder;
binderFile = flowEngineBinderConfiguration.File;
if (Logger.IsInferenceEngineVerbose)
Logger.InferenceEngineSource.TraceEvent(TraceEventType.Verbose,
0,
"Using FlowEngine binder file: "
+ binderFile);
engine.LoadRuleBase(ruleBaseAdapter,
new NxBRE.InferenceEngine.IO.FlowEngineBinder(configurationFolder + Path.DirectorySeparatorChar + binderFile, flowEngineBinderConfiguration.Type));
}
else {
throw new BREException("Unexpected type of binder object in registry configuration: " + engineConfiguration.Binder.GetType().FullName);
}
}
else {
// no binder specified
binderFile = null;
engine.LoadRuleBase(ruleBaseAdapter);
}
}