79 lines
2.7 KiB
Java
79 lines
2.7 KiB
Java
/*
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* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 4319866
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* @summary Verify that ReliableLog.snapshotSize() returns correct snapshot
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* file size even if LogHandler doesn't flush.
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*
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* @modules java.rmi/sun.rmi.log
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* @run main/othervm SnapshotSize
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*/
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import java.io.ByteArrayOutputStream;
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import java.io.OutputStream;
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import java.io.ObjectOutputStream;
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import java.io.IOException;
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import sun.rmi.log.LogHandler;
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import sun.rmi.log.ReliableLog;
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public class SnapshotSize extends LogHandler {
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int lastSnapshotSize = -1;
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public static void main(String[] args) throws Exception {
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SnapshotSize handler = new SnapshotSize();
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ReliableLog log = new ReliableLog(".", handler);
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if (log.snapshotSize() != handler.lastSnapshotSize) {
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throw new Error();
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}
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String[] snapshots = { "some", "sample", "objects", "to", "snapshot" };
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for (int i = 0; i < snapshots.length; i++) {
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log.snapshot(snapshots[i]);
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if (log.snapshotSize() != handler.lastSnapshotSize) {
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throw new Error();
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}
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}
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}
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public Object initialSnapshot() {
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return "initial snapshot";
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}
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public void snapshot(OutputStream out, Object value) throws IOException {
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ByteArrayOutputStream bout = new ByteArrayOutputStream();
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ObjectOutputStream oout = new ObjectOutputStream(bout);
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oout.writeObject(value);
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oout.close();
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byte[] buf = bout.toByteArray();
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out.write(buf); // leave unflushed
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lastSnapshotSize = buf.length;
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}
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public Object applyUpdate(Object update, Object state) {
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return state;
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}
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}
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