com.db4o.MReadMultipleObjects Maven / Gradle / Ivy
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/* Copyright (C) 2004 - 2005 db4objects Inc. http://www.db4o.com
This file is part of the db4o open source object database.
db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.
db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
package com.db4o;
import com.db4o.foundation.network.*;
final class MReadMultipleObjects extends MsgD {
final boolean processMessageAtServer(YapSocket sock) {
int size = readInt();
MsgD[] ret = new MsgD[size];
int length = (1 + size) * YapConst.YAPINT_LENGTH;
YapStream stream = getStream();
YapWriter bytes = null;
synchronized (stream.i_lock) {
for (int i = 0; i < size; i++) {
int id = this.payLoad.readInt();
try {
bytes =
stream.readWriterByID(
getTransaction(),
id);
} catch (Exception e) {
bytes = null;
}
if(bytes != null){
try{
YapClassAny.appendEmbedded(bytes);
}catch(Exception e){
if(Debug.atHome){
e.printStackTrace();
}
}
ret[i] = Msg.OBJECT_TO_CLIENT.getWriter(bytes);
length += ret[i].payLoad.getLength();
}
}
}
MsgD multibytes = Msg.READ_MULTIPLE_OBJECTS.getWriterForLength(getTransaction(), length);
multibytes.writeInt(size);
for (int i = 0; i < size; i++) {
if(ret[i] == null){
multibytes.writeInt(0);
}else{
multibytes.writeInt(ret[i].payLoad.getLength());
multibytes.payLoad.append(ret[i].payLoad._buffer);
}
}
multibytes.write(stream, sock);
return true;
}
}