Skip to content
Fetching contributors…
Cannot retrieve contributors at this time
66 lines (57 sloc) 2.36 KB
//
// ObjectBasedQueryProvider.cs
//
// Author:
// Scott Thomas <lunchtimemama@gmail.com>
//
// Copyright (c) 2010 Scott Thomas
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections.Generic;
namespace Mono.Upnp.Dcp.MediaServer1.ContentDirectory1
{
public class ObjectBasedQueryProvider
{
Dictionary<Type, ObjectQueryContext> queryContexts = new Dictionary<Type, ObjectQueryContext>();
public void Query (Query query, IEnumerable<Object> objects, Action<Object> consumer)
{
if (query == null) {
throw new ArgumentNullException ("query");
} else if (objects == null) {
throw new ArgumentNullException ("objects");
}
foreach (var @object in objects) {
query (new ObjectQueryVisitor (GetQueryContext (@object.GetType ()), @object, consumer));
}
}
ObjectQueryContext GetQueryContext (Type type)
{
if (type == null) {
return null;
}
ObjectQueryContext context;
if (!queryContexts.TryGetValue (type, out context)) {
context = new ObjectQueryContext (type, GetQueryContext (type.BaseType));
queryContexts[type] = context;
}
return context;
}
}
}
Something went wrong with that request. Please try again.