01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10: Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11: Suite 350, San Mateo, CA 94403, USA.
12:
13: db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14: WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: for more details.
17:
18: You should have received a copy of the GNU General Public License along
19: with this program; if not, write to the Free Software Foundation, Inc.,
20: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21: package com.db4o.internal.cs.messages;
22:
23: import com.db4o.ext.*;
24: import com.db4o.internal.*;
25: import com.db4o.reflect.*;
26:
27: public final class MCreateClass extends MsgD implements
28: ServerSideMessage {
29:
30: public final boolean processAtServer() {
31: ObjectContainerBase stream = stream();
32: Transaction trans = stream.systemTransaction();
33: boolean ok = false;
34: try {
35: synchronized (streamLock()) {
36: ReflectClass claxx = trans.reflector().forName(
37: readString());
38: if (claxx != null) {
39: ClassMetadata classMetadata = stream
40: .produceClassMetadata(claxx);
41: if (classMetadata != null) {
42: stream.checkStillToSet();
43: StatefulBuffer returnBytes = stream
44: .readWriterByID(trans, classMetadata
45: .getID());
46: MsgD createdClass = Msg.OBJECT_TO_CLIENT
47: .getWriter(returnBytes);
48: write(createdClass);
49: ok = true;
50: }
51: }
52: }
53: } catch (Db4oException e) {
54: // TODO: send the exception to the client
55: } finally {
56: if (!ok) {
57: write(Msg.FAILED);
58: }
59: }
60: return true;
61: }
62: }
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