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//
// DataContractJsonSerializer.cs (for Moonlight profile)
//
// Authors:
// Atsushi Enomoto <atsushi@ximian.com>
// Sebastien Pouliot <sebastien@ximian.com>
//
// Copyright (C) 2007-2008, 2010 Novell, Inc (http://www.novell.com)
//
// 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;
using System.Collections.ObjectModel;
using System.IO;
using System.Security;
using System.Xml;
namespace System.Runtime.Serialization.Json {
public sealed class DataContractJsonSerializer {
private Type type;
private ReadOnlyCollection<Type> known_types;
public DataContractJsonSerializer (Type type) :
this (type, null)
{
}
[MonoTODO ("The 'knownTypes' parameter is unused (except as a property)")]
public DataContractJsonSerializer (Type type, IEnumerable<Type> knownTypes)
{
if (type == null)
throw new ArgumentNullException ("type");
this.type = type;
List<Type> types = new List<Type> ();
if (knownTypes != null)
types.AddRange (knownTypes);
known_types = new ReadOnlyCollection<Type> (types);
}
public ReadOnlyCollection<Type> KnownTypes {
get { return known_types; }
}
// used by JsonSerializationReader.cs
internal int MaxItemsInObjectGraph {
get { return Int32.MaxValue; }
}
public object ReadObject (Stream stream)
{
var r = (JsonReader) JsonReaderWriterFactory.CreateJsonReader (stream, XmlDictionaryReaderQuotas.Max);
r.LameSilverlightLiteralParser = true;
try {
r.MoveToContent ();
if (!r.IsStartElement ("root", String.Empty)) {
throw new SerializationException (
String.Format ("Expected element was '{0}', but the actual input element was '{1}' in namespace '{2}'",
"root", r.LocalName, r.NamespaceURI));
}
return new JsonSerializationReader (this, r, type, true).ReadRoot ();
} catch (FieldAccessException fae) {
throw new SecurityException ("Deserialization has failed", fae);
} catch (MethodAccessException mae) {
throw new SecurityException ("Deserialization has failed", mae);
} catch (SerializationException) {
throw;
} catch (Exception ex) {
throw new SerializationException ("Deserialization has failed", ex);
}
}
public void WriteObject (Stream stream, object graph)
{
using (var writer = JsonReaderWriterFactory.CreateJsonWriter (stream)) {
try {
writer.WriteStartElement ("root");
new JsonSerializationWriter (this, writer, type, false).WriteObjectContent (graph, true, false);
writer.WriteEndElement ();
} catch (FieldAccessException fae) {
throw new SecurityException ("Serialization has failed", fae);
} catch (MethodAccessException mae) {
throw new SecurityException ("Serialization has failed", mae);
} catch (NotImplementedException) {
throw;
} catch (InvalidDataContractException) {
throw;
} catch (Exception ex) {
throw new SerializationException (String.Format ("There was an error during serialization for object of type {0}", graph != null ? graph.GetType () : null), ex);
}
}
}
}
}
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