/// <summary>
/// Receives client's call and adds a node in the workflow
/// </summary>
/// <param name="eventArgument">WorkflowId & Node id</param>
public void RaiseCallbackEvent(string eventArgument)
{
try {
fieldTypes = new XmlSchema(); //Creating the schema that will contain the field types
string[] args = eventArgument.Split('&');
string nodeID = args[0];
string nodeName = args[1];
//Initializing the string to return
serialized_field_types += args[0] + '&';
// idnodo & nodeName & basetype | id | label | position x | position y | width | height | rendered_label | constraints & ...
/**
* EXAMPLE:
* workflow_1_node_1&nodeName&StringBox|1|pippo|120|208|100|30|pippo|AddMaxLengthConstraint#30@AddMinLengthConstraint#3@AddRangeLengthConstraint#3$30
**/
for (int i = 2; i < args.Length; i++)
{
string[] property = args[i].Split('|');
IBaseType f = getField(property[0]);
if (f != null)
{
f.TypeName = property[0] + property[1];
f.Name = XmlConvert.DecodeName(property[2]);
//Applying costraints
if (!property[8].Equals("")) //apply only if some costraints are defined
{
//---------------------------
// COSTRAINTS STRING FORMAT:
// & CostraintName # CostraintParameter1 | .. | CostraintParameterNN
//---------------------------
string[] constraints = property[8].Split('@');
for (int k = 0; k < constraints.Length; k++)
{
string[] constraintRapresentation = constraints[k].Split('#'); //divide costraint name from parameters
string[] tmpParams;
if (constraintRapresentation[1].Equals(""))
{
tmpParams = null;
}
else
{
tmpParams = constraintRapresentation[1].Split('$'); //divide each param
}
List <MethodInfo> constraintList = FieldsManager.GetConstraints(f.GetType());
bool constraint_loaded = false;
foreach (MethodInfo c in constraintList)
{
if (constraintRapresentation[0].Equals(c.Name))
{
constraint_loaded = (bool)c.Invoke(f, tmpParams); //apply costraint to field
break;
}
}
if (!constraint_loaded)
{
throw new Exception("No constraint with name \"" + constraintRapresentation[0] + "\" could be applied.");
}
}
}
//for the client
fieldTypes.Items.Add(f.TypeSchema);
}
}
}
catch (Exception e) {
Console.Write(e.Message);
error = e.Message;
}
}
public override bool EqualsTo(IBaseType value)
{
if (value == null)
return false;
if (value.GetType() != typeof(Struct))
return false;
if (!StructuralEquals(value as Struct))
return false;
foreach (var item in (value as Struct).Attributes)
if (!item.Value.Value.EqualsTo(Attributes[item.Key].Value))
return false;
return true;
}
/// <summary>
/// Receives client's call and gets the predicates
/// </summary>
/// <param name="eventArgument">The constraints string</param>
public void RaiseCallbackEvent(string eventArgument)
{
string[] property = eventArgument.Split('|');
//property[0] -> field.basType
IBaseType f = getField(property[0]);
if (f != null)
{
returnValue = "";
//Applying costraints
if (!property[1].Equals("")) //apply only if some costraints are defined
{
//---------------------------
// COSTRAINTS STRING FORMAT:
// & CostraintName # CostraintParameter1 | .. | CostraintParameterNN
//---------------------------
string[] constraints = property[1].Split('@');
for (int k = 0; k < constraints.Length; k++)
{
string[] constraintRapresentation = constraints[k].Split('#'); //divide costraint name from parameters
string[] tmpParams;
if (constraintRapresentation[1].Equals(""))
{
tmpParams = null;
}
else
{
tmpParams = constraintRapresentation[1].Split('$'); //divide each param
}
List <MethodInfo> constraintList = FieldsManager.GetConstraints(f.GetType());
bool constraint_loaded = false;
foreach (MethodInfo c in constraintList)
{
if (constraintRapresentation[0].Equals(c.Name))
{
constraint_loaded = (bool)c.Invoke(f, tmpParams); //apply costraint to field
break;
}
}
if (!constraint_loaded)
{
List <MethodInfo> constr = FieldsManager.GetConstraints(f.GetType());
string constrName = "";
foreach (MethodInfo mi in constr)
{
if (mi.Name.Equals(constraintRapresentation[0]))
{
object[] attributes = mi.GetCustomAttributes(true);
Fields.ConstraintAttribute attribute = (Fields.ConstraintAttribute)attributes[0];
constrName += attribute.Name;
break;
}
}
returnValue = "Error applying constraint \"" + constrName + "\"";
if (tmpParams != null)
{
returnValue += " with parameter";
if (tmpParams.Length > 1)
{
returnValue += "s ";
for (int i = 0; i < tmpParams.Length; i++)
{
returnValue += ((i != 0)?", ":"") + tmpParams[i];
}
}
else
{
returnValue += " " + tmpParams[0];
}
}
}
}
}
}
}
