protected override Type DoResolvePropertyType(String propertyExpression)
{
EsperEPL2GrammarParser.StartEventPropertyRuleContext ast = PropertyParser.Parse(propertyExpression);
return(PropertyParser.IsPropertyDynamic(ast)
? typeof(XmlNode)
: typeof(string));
}
protected override Type DoResolvePropertyType(String propertyExpression)
{
var ast = PropertyParser.Parse(propertyExpression);
return(PropertyParser.IsPropertyDynamic(ast)
? typeof(XNode)
: typeof(string));
}
protected override EventPropertyGetter DoResolvePropertyGetter(String propertyExpression)
{
var getter = _propertyGetterCache.Get(propertyExpression);
if (getter != null)
{
return(getter);
}
if (!ConfigurationEventTypeXMLDOM.IsXPathPropertyExpr)
{
var prop = PropertyParser.ParseAndWalkLaxToSimple(propertyExpression);
getter = prop.GetGetterDOM();
if (!prop.IsDynamic)
{
getter = new DOMConvertingGetter(propertyExpression, (DOMPropertyGetter)getter, typeof(string));
}
}
else
{
try
{
var ast = PropertyParser.Parse(propertyExpression);
var isDynamic = PropertyParser.IsPropertyDynamic(ast);
var xPathExpr = SimpleXMLPropertyParser.Walk(
ast,
propertyExpression,
RootElementName,
_defaultNamespacePrefix,
_isResolvePropertiesAbsolute);
if (Log.IsInfoEnabled)
{
Log.Info("Compiling XPath expression for property '" + propertyExpression + "' as '" + xPathExpr +
"'");
}
var xPathExpression = XPathExpression.Compile(xPathExpr, NamespaceContext);
var xPathReturnType = isDynamic ? XPathResultType.Any : XPathResultType.String;
getter = new XPathPropertyGetter(
propertyExpression,
xPathExpr,
xPathExpression,
xPathReturnType,
null,
null);
}
catch (XPathException e)
{
throw new EPException(
"Error constructing XPath expression from property name '" + propertyExpression + '\'', e);
}
}
// no fragment factory, fragments not allowed
_propertyGetterCache.Put(propertyExpression, getter);
return(getter);
}
public static Type ResolveSimpleXMLPropertyType(string propertyExpression)
{
var prop = PropertyParser.ParseAndWalkLaxToSimple(propertyExpression);
if (PropertyParser.IsPropertyDynamic(prop)) {
return typeof(XmlNode);
}
return typeof(string);
}
public static EventPropertyGetterSPI ResolveSimpleXMLPropertyGetter(
string propertyExpression,
BaseXMLEventType baseXMLEventType,
string defaultNamespacePrefix,
bool isResolvePropertiesAbsolute)
{
if (!baseXMLEventType.ConfigurationEventTypeXMLDOM.IsXPathPropertyExpr) {
var prop = PropertyParser.ParseAndWalkLaxToSimple(propertyExpression);
var getter = prop.GetterDOM;
if (!prop.IsDynamic) {
getter = new DOMConvertingGetter((DOMPropertyGetter) getter, typeof(string));
}
return getter;
}
try {
var property = PropertyParserNoDep.ParseAndWalkLaxToSimple(propertyExpression, false);
var isDynamic = PropertyParser.IsPropertyDynamic(property);
var xPathExpr = SimpleXMLPropertyParser.Walk(
property,
baseXMLEventType.RootElementName,
defaultNamespacePrefix,
isResolvePropertiesAbsolute);
if (Log.IsInfoEnabled) {
Log.Info(
"Compiling XPath expression for property '" + propertyExpression + "' as '" + xPathExpr + "'");
}
var xPathExpression = baseXMLEventType.CreateXPath(xPathExpr);
var xPathReturnType = isDynamic ? XPathResultType.Any : XPathResultType.String;
return new XPathPropertyGetter(
baseXMLEventType,
propertyExpression,
xPathExpr,
xPathExpression,
xPathReturnType,
null,
null);
}
catch (XPathException e) {
throw new EPException(
"Error constructing XPath expression from property name '" + propertyExpression + '\'',
e);
}
}
