/// <summary>
/// Invokes named rule in a specified rulePointPath.
/// </summary>
/// <typeparam name="T">Return type</typeparam>
/// <param name="rulePointPath">The path of rule point which contains the named rule.</param>
/// <param name="ruleName">The name of the rule</param>
/// <param name="arguments">The arguments required by this rule</param>
/// <returns>The execution result of the named rule, or default(T) if the rule does not exist"/></returns>
public T InvokeNamedRule <T>(string rulePointPath, string ruleName, Dictionary <string, object> arguments)
{
if (String.IsNullOrEmpty(rulePointPath))
{
throw new ArgumentNullException("rulePointPath"); // NOXLATE
}
if (String.IsNullOrEmpty(ruleName))
{
throw new ArgumentNullException("ruleName"); // NOXLATE
}
if (arguments == null)
{
throw new ArgumentNullException("arguments"); // NOXLATE
}
RulePoint parentRulePoint = GetRulePoint(rulePointPath);
if (parentRulePoint == null)
{
return(default(T));
}
NamedRule namedRule = parentRulePoint.GetNamedRule(ruleName);
if (namedRule == null)
{
return(default(T));
}
return(InvokeRule <T>(namedRule, arguments));
}
/// <summary>
/// Finds named rules which can be accepted by given rule signature
/// </summary>
/// <param name="signature">The rule signature</param>
/// <returns>Named rules which can be accepted by given rule signature</returns>
public IEnumerable <NamedRule> FindNamedRulesBySignature(RuleSignature signature)
{
if (signature == null)
{
throw new ArgumentNullException("signature"); // NOXLATE
}
Queue <RulePoint> workingQueue = new Queue <RulePoint>();
workingQueue.Enqueue(RootRulePoint);
while (workingQueue.Count > 0)
{
RulePoint theRulePoint = workingQueue.Dequeue();
if (signature.IsRuleAvailable(theRulePoint))
{
// The named rules of this rule point are all availabe for this signature.
// Also add sub-rule points into queue
foreach (var namedRule in theRulePoint.GetNamedRules())
{
yield return(namedRule);
}
}
// Ignore all its named rules(subrules) and add its sub-rule points
// to the working queue.
foreach (var rulePoint in theRulePoint.SubRulePoints)
{
workingQueue.Enqueue(rulePoint);
}
}
}
/// <summary>
/// Adds the rule signature extension to a particular rule point's signature.
/// </summary>
/// <param name="path">The rule point path for which the rule signature extension should be applied.</param>
/// <param name="signatureExtension">The rule signature extension to register.</param>
public void AddRuleSignatureExtension(string path, IRuleSignatureExtension signatureExtension)
{
RulePoint rulePoint = this.GetRulePoint(path);
if (null != rulePoint)
{
AddRuleSignatureExtension(rulePoint, signatureExtension);
}
}
/// <summary>
/// Initializes a new instance of Autodesk.IM.Rule.NamedRule class with specified owner, name and parent Rule Point.
/// </summary>
/// <param name="owner">The specified RuleManager object as its owner.</param>
/// <param name="name">The specified name.</param>
/// <param name="parent">The Rule Point object as its parent.</param>
public NamedRule(RuleManager owner, string name, RulePoint parent)
{
RuleName = name;
if (parent != null)
{
ParentRulePointPath = parent.Path;
}
Initialize(owner);
}
/// <summary>
/// Adds a sub rule point.
/// </summary>
/// <param name="item">sub rule point to add</param>
public void AddRulePoint(RulePoint item)
{
if (HasChild(item.Name))
{
throw new ArgumentException(String.Format(Properties.Resources.NamedRuleAlreadyExists, item.Name));
}
item._parent = this;
subRulePoints.Add(item);
}
/// <summary>
/// Gets a rule point by a given path.
/// </summary>
/// <param name="rulePointPath">The path of the rule point you want to get</param>
/// <returns>The rule point if it exists; otherwise, null.</returns>
public RulePoint GetRulePoint(string rulePointPath)
{
RulePoint iter = RootRulePoint;
string[] pathItems = RulePathHelper.GetRulePathComponents(rulePointPath);
foreach (string item in pathItems)
{
iter = iter.GetSubRulePoint(item);
if (iter == null)
{
return(null);
}
}
return(iter);
}
/// <summary>
/// Gets all registered rule points
/// </summary>
/// <returns>Rule points</returns>
public IEnumerable <RulePoint> GetAllRulePoints()
{
Queue <RulePoint> workingQueue = new Queue <RulePoint>();
workingQueue.Enqueue(RootRulePoint);
while (workingQueue.Count > 0)
{
RulePoint theRulePoint = workingQueue.Dequeue();
yield return(theRulePoint);
foreach (var rulePoint in theRulePoint.SubRulePoints)
{
workingQueue.Enqueue(rulePoint);
}
}
}
private void AddRuleSignatureExtension(RulePoint rulePoint, IRuleSignatureExtension signatureExtension)
{
RuleSignature signature = rulePoint.Signature;
if (null != signature)
{
signature.AddExtension(signatureExtension);
}
foreach (RuleBase rule in rulePoint.Children)
{
if (rule is RulePoint)
{
AddRuleSignatureExtension((rule as RulePoint), signatureExtension);
}
}
}
/// <summary>
/// Invokes a Rule Point, run its routine with given arguments.
/// </summary>
/// <param name="rulePointPath">Path of Rule Point</param>
/// <param name="arguments">Arguments required to run the Rule Point</param>
/// <returns>Result of rule execution, or null if the rule does not exist.</returns>
public IDictionary <string, object> InvokeRulePoint(string rulePointPath, Dictionary <string, object> arguments)
{
RulePoint theRulePoint = GetRulePoint(rulePointPath);
// loop until get to the root or rule point has no signature
// (which means cannot create rule for it and its parents)
while (theRulePoint != null && theRulePoint.Signature != null)
{
if (theRulePoint.HasActivity)
{
return(InvokeRule(theRulePoint, arguments));
}
else
{
theRulePoint = theRulePoint.Parent;
}
}
return(null);
}
/// <summary>
/// Gets a named rule by a given path.
/// </summary>
/// <param name="rulePath">The path of the named rule you want to get</param>
/// <returns>The named rule if it exists; otherwise, null.</returns>
public NamedRule GetNamedRule(string rulePath)
{
if (String.IsNullOrEmpty(rulePath))
{
throw new ArgumentNullException("rulePath"); // NOXLATE
}
string rulePointPath;
string ruleName;
if (RulePathHelper.ExtractNamedRulePath(rulePath, out rulePointPath, out ruleName))
{
RulePoint theRulePoint = GetRulePoint(rulePointPath);
if (theRulePoint != null)
{
return(theRulePoint.GetNamedRule(ruleName));
}
}
return(null);
}
/// <summary>
/// Gets a rule point by a given path. Returns the lowest level sub rule point in
/// the heirarchy which has a valid activity defined.
/// </summary>
/// <param name="rulePointPath">The path of the rule point you want to get</param>
/// <returns>The lowest level rule point in the path that has an activity; otherwise, null.</returns>
public RulePoint GetRulePointWithActivity(string rulePointPath)
{
RulePoint activityPoint = null;
RulePoint iter = RootRulePoint;
string[] pathItems = RulePathHelper.GetRulePathComponents(rulePointPath);
foreach (string item in pathItems)
{
iter = iter.GetSubRulePoint(item);
if (iter == null)
{
return(activityPoint);
}
else if (iter.HasActivity)
{
activityPoint = iter;
}
}
return(activityPoint);
}
/// <summary>
/// Registers a new rule point with specified position.
/// </summary>
/// <param name="parentPath">A string representing the position where the rule point goes.</param>
/// <param name="name">The name of rule point.</param>
/// <param name="displayName">The display name of rule point.</param>
/// <param name="signature">The signature of rule point.</param>
public void RegisterRulePoint(string parentPath, string name, string displayName, RuleSignature signature)
{
RulePoint rulePoint = new RulePoint(this, name, signature, displayName);
// Create rule points recursively.
RulePoint iter = RootRulePoint;
string[] pathItems = RulePathHelper.GetRulePathComponents(parentPath);
foreach (string item in pathItems)
{
if (!iter.HasChild(item))
{
iter.AddRulePoint(new RulePoint(this, item));
}
iter = iter.GetSubRulePoint(item);
if (iter == null)
{
throw new InvalidOperationException(Properties.Resources.CannotRegisterRulePoint);
}
}
iter.AddRulePoint(rulePoint);
}
public void RemoveRulePointWorkflow(RulePoint rulePoint)
{
throw new NotImplementedException();
}
public void SetRulePointWorkflow(RulePoint rulePoint, System.Activities.DynamicActivity workflow)
{
throw new NotImplementedException();
}
/// <summary>
/// Initializes a new instance of Autodesk.IM.Rule.RuleManager.
/// </summary>
public RuleManager()
{
_rootRulePoint = new RulePoint(this, String.Empty, null, String.Empty);
this.ActivityManager = new RuleActivityManager();
}
