public Object ReadObject(ObjectDecoder decoder)
{
if (_firstObject)
{
int magic = ReadInt();
if (magic != BinaryObjectEncoder.OBJECT_MAGIC)
{
throw new ConnectorException("Bad magic number: " + magic);
}
int version = ReadInt();
if (version != BinaryObjectEncoder.ENCODING_VERSION)
{
throw new ConnectorException("Unexpected version: " + version);
}
_firstObject = false;
}
//if it's a top-level object, it's proceeded by a constant pool
if (_readStateStack.Count == 0)
{
int size = ReadInt();
for (int i = 0; i < size; i++)
{
String constant = ReadString(false);
int code = ReadInt();
_constantPool[code] = constant;
}
}
Type clazz = ReadClass();
ReadState state = new ReadState();
while (true)
{
byte type = ReadByte();
if (type == BinaryObjectEncoder.FIELD_TYPE_END_OBJECT)
{
break;
}
else if (type == BinaryObjectEncoder.FIELD_TYPE_ANONYMOUS_FIELD)
{
byte[] bytes = ReadByteArray();
state.anonymousFields.Add(bytes);
}
else if (type == BinaryObjectEncoder.FIELD_TYPE_NAMED_FIELD)
{
String fieldName = ReadString(true);
byte[] bytes = ReadByteArray();
state.objectFields[fieldName] = bytes;
}
else
{
throw new ConnectorException("Unknown type: " + type);
}
}
_readStateStack.Add(state);
Object rv;
if (clazz == null)
{
rv = null;
}
else
{
ObjectSerializationHandler handler =
ObjectSerializerRegistry.GetHandlerByObjectType(clazz);
if (handler == null)
{
//we may have special handlers for certain types of arrays
//if handler is null, treat like any other array
if (clazz.IsArray)
{
int length = GetNumAnonymousFields();
Array array = Array.CreateInstance(clazz.GetElementType(),
length);
for (int i = 0; i < length; i++)
{
StartAnonymousField(i);
Object element = ReadObject(decoder);
array.SetValue(element, i);
}
rv = array;
}
else
{
throw new ConnectorException("No deserializer for type: " + clazz);
}
}
else
{
rv = handler.Deserialize(decoder);
}
}
_readStateStack.RemoveAt(_readStateStack.Count - 1);
return rv;
}
public bool StartField(String name)
{
ReadState readState = _readStateStack[_readStateStack.Count - 1];
return(readState.StartField(name));
}
public int GetNumAnonymousFields()
{
ReadState readState = _readStateStack[_readStateStack.Count - 1];
return(readState.anonymousFields.Count);
}
public void StartAnonymousField(int index)
{
ReadState readState = _readStateStack[_readStateStack.Count - 1];
readState.StartAnonymousField(index);
}
public Object ReadObject(ObjectDecoder decoder)
{
if (_firstObject)
{
int magic = ReadInt();
if (magic != BinaryObjectEncoder.OBJECT_MAGIC)
{
throw new ConnectorException("Bad magic number: " + magic);
}
int version = ReadInt();
if (version != BinaryObjectEncoder.ENCODING_VERSION)
{
throw new ConnectorException("Unexpected version: " + version);
}
_firstObject = false;
}
//if it's a top-level object, it's proceeded by a constant pool
if (_readStateStack.Count == 0)
{
int size = ReadInt();
for (int i = 0; i < size; i++)
{
String constant = ReadString(false);
int code = ReadInt();
_constantPool[code] = constant;
}
}
Type clazz = ReadClass();
ReadState state = new ReadState();
while (true)
{
byte type = ReadByte();
if (type == BinaryObjectEncoder.FIELD_TYPE_END_OBJECT)
{
break;
}
else if (type == BinaryObjectEncoder.FIELD_TYPE_ANONYMOUS_FIELD)
{
byte[] bytes = ReadByteArray();
state.anonymousFields.Add(bytes);
}
else if (type == BinaryObjectEncoder.FIELD_TYPE_NAMED_FIELD)
{
String fieldName = ReadString(true);
byte[] bytes = ReadByteArray();
state.objectFields[fieldName] = bytes;
}
else
{
throw new ConnectorException("Unknown type: " + type);
}
}
_readStateStack.Add(state);
Object rv;
if (clazz == null)
{
rv = null;
}
else
{
ObjectSerializationHandler handler =
ObjectSerializerRegistry.GetHandlerByObjectType(clazz);
if (handler == null)
{
//we may have special handlers for certain types of arrays
//if handler is null, treat like any other array
if (clazz.IsArray)
{
int length = GetNumAnonymousFields();
Array array = Array.CreateInstance(clazz.GetElementType(),
length);
for (int i = 0; i < length; i++)
{
StartAnonymousField(i);
Object element = ReadObject(decoder);
array.SetValue(element, i);
}
rv = array;
}
else
{
throw new ConnectorException("No deserializer for type: " + clazz);
}
}
else
{
rv = handler.Deserialize(decoder);
}
}
_readStateStack.RemoveAt(_readStateStack.Count - 1);
return(rv);
}
