protected internal virtual void parseValidation(Element formField, FormFieldHandler formFieldHandler, BpmnParse bpmnParse, ExpressionManager expressionManager)
{
Element validationElement = formField.elementNS(BpmnParse.CAMUNDA_BPMN_EXTENSIONS_NS, "validation");
if (validationElement != null)
{
IList <Element> constraintElements = validationElement.elementsNS(BpmnParse.CAMUNDA_BPMN_EXTENSIONS_NS, "constraint");
foreach (Element property in constraintElements)
{
FormFieldValidator validator = Context.ProcessEngineConfiguration.FormValidators.createValidator(property, bpmnParse, expressionManager);
string validatorName = property.attribute("name");
string validatorConfig = property.attribute("config");
if (validator != null)
{
FormFieldValidationConstraintHandler handler = new FormFieldValidationConstraintHandler();
handler.Name = validatorName;
handler.Config = validatorConfig;
handler.Validator = validator;
formFieldHandler.ValidationHandlers.Add(handler);
}
}
}
}
public DefaultFormFieldValidatorContext(VariableScope variableScope, string configuration, VariableMap submittedValues, FormFieldHandler formFieldHandler) : base()
{
this.variableScope = variableScope;
this.configuration = configuration;
this.submittedValues = submittedValues;
this.formFieldHandler = formFieldHandler;
}
protected internal virtual void parseFormField(Element formField, BpmnParse bpmnParse, ExpressionManager expressionManager)
{
FormFieldHandler formFieldHandler = new FormFieldHandler();
// parse Id
string id = formField.attribute("id");
if (string.ReferenceEquals(id, null) || id.Length == 0)
{
bpmnParse.addError("attribute id must be set for FormFieldGroup and must have a non-empty value", formField);
}
else
{
formFieldHandler.Id = id;
}
if (id.Equals(businessKeyFieldId))
{
formFieldHandler.BusinessKey = true;
}
// parse name
string name = formField.attribute("label");
if (!string.ReferenceEquals(name, null))
{
Expression nameExpression = expressionManager.createExpression(name);
formFieldHandler.Label = nameExpression;
}
// parse properties
parseProperties(formField, formFieldHandler, bpmnParse, expressionManager);
// parse validation
parseValidation(formField, formFieldHandler, bpmnParse, expressionManager);
// parse type
FormTypes formTypes = FormTypes;
AbstractFormFieldType formType = formTypes.parseFormPropertyType(formField, bpmnParse);
formFieldHandler.setType(formType);
// parse default value
string defaultValue = formField.attribute("defaultValue");
if (!string.ReferenceEquals(defaultValue, null))
{
Expression defaultValueExpression = expressionManager.createExpression(defaultValue);
formFieldHandler.DefaultValueExpression = defaultValueExpression;
}
formFieldHandlers.Add(formFieldHandler);
}
protected internal virtual void parseProperties(Element formField, FormFieldHandler formFieldHandler, BpmnParse bpmnParse, ExpressionManager expressionManager)
{
Element propertiesElement = formField.elementNS(BpmnParse.CAMUNDA_BPMN_EXTENSIONS_NS, "properties");
if (propertiesElement != null)
{
IList <Element> propertyElements = propertiesElement.elementsNS(BpmnParse.CAMUNDA_BPMN_EXTENSIONS_NS, "property");
// use linked hash map to preserve item ordering as provided in XML
IDictionary <string, string> propertyMap = new LinkedHashMap <string, string>();
foreach (Element property in propertyElements)
{
string id = property.attribute("id");
string value = property.attribute("value");
propertyMap[id] = value;
}
formFieldHandler.Properties = propertyMap;
}
}
// submit /////////////////////////////////
public virtual void validate(object submittedValue, VariableMap submittedValues, FormFieldHandler formFieldHandler, VariableScope variableScope)
{
try
{
FormFieldValidatorContext context = new DefaultFormFieldValidatorContext(variableScope, config, submittedValues, formFieldHandler);
if (!validator.validate(submittedValue, context))
{
throw new FormFieldValidatorException(formFieldHandler.Id, name, config, submittedValue, "Invalid value submitted for form field '" + formFieldHandler.Id + "': validation of " + this + " failed.");
}
}
catch (FormFieldValidationException e)
{
throw new FormFieldValidatorException(formFieldHandler.Id, name, config, submittedValue, "Invalid value submitted for form field '" + formFieldHandler.Id + "': validation of " + this + " failed.", e);
}
}