public ElasticQueryParserConfiguration UseAliases(AliasResolver defaultAliasResolver, int priority = 50)
{
DefaultAliasResolver = defaultAliasResolver;
var visitor = new AliasedQueryVisitor();
QueryVisitor.AddVisitor(visitor, priority);
SortVisitor.AddVisitor(visitor, priority);
AggregationVisitor.AddVisitor(new AliasedQueryVisitor(false), priority);
return(this);
}
public static T SetRootAliasResolver <T>(this T context, AliasResolver aliasResolver) where T : IQueryVisitorContext
{
var aliasContext = context as IQueryVisitorContextWithAliasResolver;
if (aliasContext == null)
{
throw new ArgumentException("Context must be of type IQueryVisitorContextWithAliasResolver", nameof(context));
}
aliasContext.RootAliasResolver = aliasResolver;
return(context);
}
private GetAliasResult InternalResolve(string field, AliasResolver resolver)
{
var result = resolver?.Invoke(field);
if (result != null)
{
return(new GetAliasResult {
Name = result.Name,
Resolver = result.Resolver // need to wrap this
});
}
return(null);
}
public static Task <IQueryNode> RunAsync(IQueryNode node, AliasResolver resolver, IQueryVisitorContextWithAliasResolver context = null)
{
return(new AliasedQueryVisitor().AcceptAsync(node, context ?? new QueryVisitorContextWithAliasResolver {
RootAliasResolver = resolver
}));
}
public static AliasResolver GetScopedResolver(AliasResolver resolver, string scope)
{
return(f => resolver(!String.IsNullOrEmpty(scope) ? scope + "." + f : f));
}
private GetAliasResult InternalResolve(string[] fieldParts, int index, AliasResolver resolver)
{
string part = index == 0 ? fieldParts[0] : String.Join(".", fieldParts.Take(index + 1));
return(InternalResolve(part, resolver));
}
public static IQueryNode Run(IQueryNode node, AliasResolver resolver, IQueryVisitorContextWithAliasResolver context = null)
{
return(RunAsync(node, resolver, context).GetAwaiter().GetResult());
}
public static T RootAliasResolver <T>(this T options, AliasResolver rootAliasResolver) where T : ICommandOptions
{
options.Values.Set(RootAliasResolverKey, rootAliasResolver);
return(options);
}
public static void SetAliasResolver(this IQueryNode node, AliasResolver resolver)
{
node.Data[AliasResolverKey] = resolver;
}
