public virtual void TestCopy()
{
ByteArrayBuffer from = new ByteArrayBuffer(Readerlength);
for (int i = 0; i < Readerlength; i++)
{
from.WriteByte((byte)i);
}
ByteArrayBuffer to = new ByteArrayBuffer(Readerlength - 1);
from.CopyTo(to, 1, 2, 10);
Assert.AreEqual(0, to.ReadByte());
Assert.AreEqual(0, to.ReadByte());
for (int i = 1; i <= 10; i++)
{
Assert.AreEqual((byte)i, to.ReadByte());
}
for (int i = 12; i < Readerlength - 1; i++)
{
Assert.AreEqual(0, to.ReadByte());
}
}
public virtual void WriteByte(byte b)
{
PrepareWrite();
_delegate.WriteByte(b);
}
public override void Write(object a_object, ByteArrayBuffer a_bytes)
{
char char_ = ((char)a_object);
a_bytes.WriteByte((byte)(char_ & unchecked((int)(0xff))));
a_bytes.WriteByte((byte)(char_ >> 8));
}
public void WriteByte(byte value)
{
_source.IncrementOffset(1);
_target.WriteByte(value);
}
public virtual ByteArrayBuffer ToWriteBuffer(Pointer4 pointer)
{
ByteArrayBuffer buffer = new ByteArrayBuffer(pointer.Length());
_writeBuffer.MergeChildren(this, pointer.Address(), WriteBufferOffset());
WriteObjectClassID(buffer, ClassMetadata().GetID());
buffer.WriteByte(HandlerRegistry.HandlerVersion);
buffer.WriteInt(AspectCount());
buffer.WriteBitMap(_nullBitMap);
_writeBuffer.TransferContentTo(buffer);
return buffer;
}
public override void WriteThis(Transaction trans, ByteArrayBuffer buffer)
{
int count = 0;
int startOffset = buffer._offset;
IContext context = trans.Context();
buffer.IncrementOffset(CountLeafAnd3LinkLength);
if (_isLeaf)
{
for (int i = 0; i < _count; i++)
{
object obj = InternalKey(trans, i);
if (obj != No4.Instance)
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, obj);
}
}
}
else
{
for (int i = 0; i < _count; i++)
{
if (ChildCanSupplyFirstKey(i))
{
Db4objects.Db4o.Internal.Btree.BTreeNode child = (Db4objects.Db4o.Internal.Btree.BTreeNode
)_children[i];
object childKey = child.FirstKey(trans);
if (childKey != No4.Instance)
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, childKey);
buffer.WriteIDOf(trans, child);
}
}
else
{
count++;
KeyHandler().WriteIndexEntry(context, buffer, Key(i));
buffer.WriteIDOf(trans, _children[i]);
}
}
}
int endOffset = buffer._offset;
buffer._offset = startOffset;
buffer.WriteInt(count);
buffer.WriteByte(_isLeaf ? (byte)1 : (byte)0);
buffer.WriteInt(_parentID);
buffer.WriteInt(_previousID);
buffer.WriteInt(_nextID);
buffer._offset = endOffset;
}
public override void WriteThis(Transaction trans, ByteArrayBuffer a_writer)
{
a_writer.WriteByte(BtreeVersion);
a_writer.WriteInt(_size);
a_writer.WriteInt(NodeSize());
a_writer.WriteIDOf(trans, _root);
}
public override void Write(object a_object, ByteArrayBuffer a_bytes)
{
a_bytes.WriteByte(((byte)a_object));
}
public override void Write(Transaction trans, ClassMetadata clazz, ClassAspect aspect
, ByteArrayBuffer writer)
{
writer.WriteByte(aspect.AspectType()._id);
base.Write(trans, clazz, aspect, writer);
}
public override void Write(object obj, ByteArrayBuffer buffer)
{
buffer.WriteByte(GetEncodedByteValue(obj));
}
public override void Write(Transaction trans, ClassMetadata clazz, ClassAspect aspect
, ByteArrayBuffer writer)
{
writer.WriteShortString(trans, aspect.GetName());
if (!(aspect is FieldMetadata))
{
return;
}
FieldMetadata field = (FieldMetadata)aspect;
field.Alive();
if (field.IsVirtual())
{
return;
}
ITypeHandler4 handler = field.GetHandler();
if (handler is StandardReferenceTypeHandler)
{
// TODO: ensure there is a test case, to make this happen
if (((StandardReferenceTypeHandler)handler).ClassMetadata().GetID() == 0)
{
trans.Container().NeedsUpdate(clazz);
}
}
writer.WriteInt(field.FieldTypeID());
BitMap4 bitmap = new BitMap4(3);
bitmap.Set(0, field.IsPrimitive());
bitmap.Set(1, Handlers4.HandlesArray(handler));
bitmap.Set(2, Handlers4.HandlesMultidimensionalArray(handler));
// keep the order
writer.WriteByte(bitmap.GetByte(0));
}
protected virtual void WriteBuffer(ByteArrayBuffer buffer, bool shuttingDown)
{
SystemData systemData = SystemData();
WriteSlot(buffer, systemData.IdSystemSlot(), false);
WriteSlot(buffer, systemData.InMemoryFreespaceSlot(), !shuttingDown);
buffer.WriteInt(systemData.BTreeFreespaceId());
buffer.WriteInt(systemData.ConverterVersion());
buffer.WriteInt(systemData.UuidIndexId());
Db4oDatabase identity = systemData.Identity();
buffer.WriteInt(identity == null ? 0 : identity.GetID(_container.SystemTransaction
()));
buffer.WriteLong(systemData.LastTimeStampID());
buffer.WriteByte(systemData.FreespaceSystem());
}
