public static SelectedValue[] SelectValues(TextReader json, string[] selectors, JSONSelectorOptions options)
{
if (null == json)
{
return new SelectedValue[0];
}
// Create tokenizer for the JSON text - this is fed to a Tree Walking Validator
JSONTokenizer tokenizer = new JSONTokenizer(json);
// Create an events object for the Tree Walker - events are fired as the walker
// traverses nodes in the tree.
JSONWalkingEvents events = new JSONWalkingEvents();
// The selector subscribes to the Walker Events and selects the appropriate values from the
// JSON tree.
JSONSelector selector = new JSONSelector(events, selectors);
// A JSON Tree Walker that validates the structure of the JSON and also fires events
// while traversing the tree.
JSONWalkingValidator walker = new JSONWalkingValidator();
walker.Walk(tokenizer.GetEnumerator(), events);
// Retrieve the values selected from the JSON.
return selector.SelectedValues;
}
public static SQLConstraint GenerateSQLConstraint(IDatabaseService db, Dictionary<string, Type> typeMappings, string json)
{
var tokenizer = new JSONTokenizer(new StringReader(json));
var events = new JSONWalkingEvents();
var constraint = new JSONToSQLConstraint(db, events, typeMappings);
JSONWalkingValidator walker = new JSONWalkingValidator();
walker.Walk(tokenizer.GetEnumerator(), events);
return constraint.GenerateSQLConstraint();
}
