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//
// System.Runtime.Serialization.Formatter.cs
//
// Authors:
// Duncan Mak (duncan@ximian.com)
// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
//
// (C) Ximian, Inc.
//
//
// Copyright (C) 2004 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.IO;
namespace System.Runtime.Serialization
{
[CLSCompliant (false)]
[Serializable]
#if NET_2_0
[System.Runtime.InteropServices.ComVisibleAttribute (true)]
#endif
public abstract class Formatter : IFormatter
{
protected Formatter ()
{
}
protected ObjectIDGenerator m_idGenerator = new ObjectIDGenerator ();
protected Queue m_objectQueue = new Queue ();
public abstract SerializationBinder Binder {
get;
set;
}
public abstract StreamingContext Context {
get;
set;
}
public abstract ISurrogateSelector SurrogateSelector {
get;
set;
}
public abstract object Deserialize (Stream serializationStream);
protected virtual object GetNext (out long objID)
{
if (m_objectQueue.Count == 0)
{
// set the out field to 0
objID = 0L;
return null;
}
Object o = m_objectQueue.Dequeue ();
bool FirstTime;
objID = m_idGenerator.HasId (o, out FirstTime);
return o;
}
protected virtual long Schedule (object obj)
{
if (obj == null)
return 0L;
bool FirstTime;
long ID = m_idGenerator.GetId (obj, out FirstTime);
if (FirstTime)
m_objectQueue.Enqueue (obj);
return ID;
}
public abstract void Serialize (Stream serializationStream, object graph);
protected abstract void WriteArray (object obj, string name, Type memberType);
protected abstract void WriteBoolean (bool val, string name);
protected abstract void WriteByte (byte val, string name);
protected abstract void WriteChar (char val, string name);
protected abstract void WriteDateTime (DateTime val, string name);
protected abstract void WriteDecimal (Decimal val, string name);
protected abstract void WriteDouble (double val, string name);
protected abstract void WriteInt16 (short val, string name);
protected abstract void WriteInt32 (int val, string name);
protected abstract void WriteInt64 (long val, string name);
protected virtual void WriteMember (string memberName, object data)
{
if (data == null)
WriteObjectRef (data, memberName, typeof(Object));
Type dataType = data.GetType ();
if (dataType.IsArray)
WriteArray (data, memberName, dataType);
else if (dataType == typeof(bool))
WriteBoolean ((bool)data, memberName);
else if (dataType == typeof(byte))
WriteByte ((byte)data, memberName);
else if (dataType == typeof(char))
WriteChar ((char)data, memberName);
else if (dataType == typeof(DateTime))
WriteDateTime ((DateTime)data, memberName);
else if (dataType == typeof(decimal))
WriteDecimal ((decimal)data, memberName);
else if (dataType == typeof(double))
WriteDouble ((double)data, memberName);
else if (dataType == typeof(Int16))
WriteInt16 ((Int16)data, memberName);
else if (dataType == typeof(Int32))
WriteInt32 ((Int32)data, memberName);
else if (dataType == typeof(Int64))
WriteInt64 ((Int64)data, memberName);
else if (dataType == typeof(sbyte))
WriteSByte ((sbyte)data, memberName);
else if (dataType == typeof(float))
WriteSingle ((float)data, memberName);
else if (dataType == typeof(TimeSpan))
WriteTimeSpan ((TimeSpan)data, memberName);
else if (dataType == typeof(UInt16))
WriteUInt16 ((UInt16)data, memberName);
else if (dataType == typeof(UInt32))
WriteUInt32 ((UInt32)data, memberName);
else if (dataType == typeof(UInt64))
WriteUInt64 ((UInt64)data, memberName);
else if (dataType.IsValueType)
WriteValueType (data, memberName, dataType);
WriteObjectRef (data, memberName, dataType);
}
protected abstract void WriteObjectRef (object obj, string name, Type memberType);
[CLSCompliant (false)]
protected abstract void WriteSByte (sbyte val, string name);
protected abstract void WriteSingle (float val, string name);
protected abstract void WriteTimeSpan (TimeSpan val, string name);
[CLSCompliant (false)]
protected abstract void WriteUInt16 (ushort val, string name);
[CLSCompliant (false)]
protected abstract void WriteUInt32 (uint val, string name);
[CLSCompliant (false)]
protected abstract void WriteUInt64 (ulong val, string name);
protected abstract void WriteValueType (object obj, string name, Type memberType);
}
}
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