//
// DataContractJsonSerializer.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2007-2008 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;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Xml;
namespace System.Runtime.Serialization.Json{
public sealed class DataContractJsonSerializer : XmlObjectSerializer
{
const string default_root_name = "root";
#region lengthy constructor list
public DataContractJsonSerializer (Type type)
: this (type, Type.EmptyTypes)
{
}
public DataContractJsonSerializer (Type type, IEnumerable<Type> knownTypes)
: this (type, default_root_name, knownTypes)
{
}
public DataContractJsonSerializer (Type type, string rootName)
: this (type, rootName, Type.EmptyTypes)
{
}
public DataContractJsonSerializer (Type type, XmlDictionaryString rootName)
: this (type, rootName != null ? rootName.Value : default_root_name, Type.EmptyTypes)
{
}
public DataContractJsonSerializer (Type type, string rootName, IEnumerable<Type> knownTypes)
: this (type, rootName, knownTypes, int.MaxValue, false, false)
{
}
public DataContractJsonSerializer (Type type, XmlDictionaryString rootName, IEnumerable<Type> knownTypes)
: this (type, rootName != null ? rootName.Value : default_root_name, knownTypes)
{
}
DataContractJsonSerializer(Type type, string rootName, IEnumerable<Type> knownTypes, int maxItemsInObjectGraph, bool ignoreExtensionDataObject, bool alwaysEmitTypeInformation)
{
if (type == null)
throw new ArgumentNullException ("type");
if (rootName == null)
throw new ArgumentNullException ("rootName");
if (maxItemsInObjectGraph < 0)
throw new ArgumentOutOfRangeException ("maxItemsInObjectGraph");
this.type = type;
known_types = new ReadOnlyCollection<Type> (knownTypes != null ? knownTypes.ToArray () : Type.EmptyTypes);
root = rootName;
max_items = maxItemsInObjectGraph;
ignore_extension = ignoreExtensionDataObject;
always_emit_type = alwaysEmitTypeInformation;
}
#if !MOONLIGHT
public DataContractJsonSerializer (Type type, IEnumerable<Type> knownTypes, int maxItemsInObjectGraph, bool ignoreExtensionDataObject, IDataContractSurrogate dataContractSurrogate, bool alwaysEmitTypeInformation)
: this (type, default_root_name, knownTypes, maxItemsInObjectGraph, ignoreExtensionDataObject, alwaysEmitTypeInformation)
{
}
public DataContractJsonSerializer (Type type, string rootName, IEnumerable<Type> knownTypes, int maxItemsInObjectGraph, bool ignoreExtensionDataObject, IDataContractSurrogate dataContractSurrogate, bool alwaysEmitTypeInformation)
: this (type, rootName, knownTypes, maxItemsInObjectGraph, ignoreExtensionDataObject, alwaysEmitTypeInformation)
{
surrogate = dataContractSurrogate;
}
public DataContractJsonSerializer (Type type, XmlDictionaryString rootName, IEnumerable<Type> knownTypes, int maxItemsInObjectGraph, bool ignoreExtensionDataObject, IDataContractSurrogate dataContractSurrogate, bool alwaysEmitTypeInformation)
: this (type, rootName != null ? rootName.Value : default_root_name, knownTypes, maxItemsInObjectGraph, ignoreExtensionDataObject, dataContractSurrogate, alwaysEmitTypeInformation)
{
}
#endif
#endregion
Type type;
string root;
ReadOnlyCollection<Type> known_types;
int max_items;
bool ignore_extension;
bool always_emit_type;
#if !MOONLIGHT
IDataContractSurrogate surrogate;
[MonoTODO]
public IDataContractSurrogate DataContractSurrogate {
get { return surrogate; }
}
#endif
[MonoTODO]
public bool IgnoreExtensionDataObject {
get { return ignore_extension; }
}
[MonoTODO]
public ReadOnlyCollection<Type> KnownTypes {
get { return known_types; }
}
public int MaxItemsInObjectGraph {
get { return max_items; }
}
public override bool IsStartObject (XmlReader reader)
{
if (reader == null)
throw new ArgumentNullException ("reader");
reader.MoveToContent ();
return reader.IsStartElement (root, String.Empty);
}
public override bool IsStartObject (XmlDictionaryReader reader)
{
return IsStartObject ((XmlReader) reader);
}
public override object ReadObject (Stream stream)
{
#if NET_2_1
var r = (JsonReader) JsonReaderWriterFactory.CreateJsonReader(stream, XmlDictionaryReaderQuotas.Max);
r.LameSilverlightLiteralParser = true;
return ReadObject(r);
#else
return ReadObject (JsonReaderWriterFactory.CreateJsonReader (stream, new XmlDictionaryReaderQuotas ()));
#endif
}
public override object ReadObject (XmlDictionaryReader reader)
{
return ReadObject (reader, true);
}
public override object ReadObject (XmlReader reader)
{
return ReadObject (reader, true);
}
public override object ReadObject (XmlDictionaryReader reader, bool verifyObjectName)
{
return ReadObject ((XmlReader) reader, verifyObjectName);
}
public override object ReadObject (XmlReader reader, bool verifyObjectName)
{
if (reader == null)
throw new ArgumentNullException ("reader");
try {
if (verifyObjectName && !IsStartObject (reader))
throw new SerializationException (String.Format ("Expected element was '{0}', but the actual input element was '{1}' in namespace '{2}'", root, reader.LocalName, reader.NamespaceURI));
return new JsonSerializationReader (this, reader, type, verifyObjectName).ReadRoot ();
} catch (SerializationException) {
throw;
} catch (Exception ex) {
throw new SerializationException ("Deserialization has failed", ex);
}
}
public override void WriteObject (Stream stream, object graph)
{
using (var xw = JsonReaderWriterFactory.CreateJsonWriter (stream))
WriteObject (xw, graph);
}
public override void WriteObject (XmlWriter writer, object graph)
{
try {
WriteStartObject (writer, graph);
WriteObjectContent (writer, graph);
WriteEndObject (writer);
} 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);
}
}
public override void WriteObject (XmlDictionaryWriter writer, object graph)
{
WriteObject ((XmlWriter) writer, graph);
}
public override void WriteStartObject (XmlDictionaryWriter writer, object graph)
{
WriteStartObject ((XmlWriter) writer, graph);
}
public override void WriteStartObject (XmlWriter writer, object graph)
{
if (writer == null)
throw new ArgumentNullException ("writer");
writer.WriteStartElement (root);
}
public override void WriteObjectContent (XmlDictionaryWriter writer, object graph)
{
WriteObjectContent ((XmlWriter) writer, graph);
}
public override void WriteObjectContent (XmlWriter writer, object graph)
{
new JsonSerializationWriter (this, writer, type, always_emit_type).WriteObjectContent (graph, true, false);
}
public override void WriteEndObject (XmlDictionaryWriter writer)
{
WriteEndObject ((XmlWriter) writer);
}
public override void WriteEndObject (XmlWriter writer)
{
if (writer == null)
throw new ArgumentNullException ("writer");
writer.WriteEndElement ();
}
}
}
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