/**
* Evaluates an expression within the scope of this processor's context.
*
* @param expression The String expression
* @param type Expected result type
* @param defaultValue Default value to return in case of error
*/
public <T> T evaluate(String expression, Class<T> type, T defaultValue) {
try {
ValueExpression expr = expressions.parse(expression, type);
Object result = expr.getValue(elContext);
return type.cast(result);
} catch (ELException e) {
logger.log(
Level.WARNING,
"EL failure for gadget {0}: {1}",
new Object[] {getTemplateContext().getGadget().getContext().getUrl(), e.getMessage()});
return defaultValue;
}
}
