/*
* Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 4319866
* @summary Verify that ReliableLog.snapshotSize() returns correct snapshot
* file size even if LogHandler doesn't flush.
*/
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.io.ObjectOutputStream;
import java.io.IOException;
import sun.rmi.log.LogHandler;
import sun.rmi.log.ReliableLog;
public class SnapshotSize extends LogHandler {
int lastSnapshotSize = -1;
public static void main(String[] args) throws Exception {
SnapshotSize handler = new SnapshotSize();
ReliableLog log = new ReliableLog(".", handler);
if (log.snapshotSize() != handler.lastSnapshotSize) {
throw new Error();
}
String[] snapshots = { "some", "sample", "objects", "to", "snapshot" };
for (int i = 0; i < snapshots.length; i++) {
log.snapshot(snapshots[i]);
if (log.snapshotSize() != handler.lastSnapshotSize) {
throw new Error();
}
}
}
public Object initialSnapshot() {
return "initial snapshot";
}
public void snapshot(OutputStream out, Object value) throws IOException {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream oout = new ObjectOutputStream(bout);
oout.writeObject(value);
oout.close();
byte[] buf = bout.toByteArray();
out.write(buf); // leave unflushed
lastSnapshotSize = buf.length;
}
public Object applyUpdate(Object update, Object state) {
return state;
}
}