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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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*
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* 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 .
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*/
/* @test
* @ bug 4319866
* @ summary Verify that ReliableLog . snapshotSize ( ) returns correct snapshot
* file size even if LogHandler doesn ' t flush .
*
* @ modules java . rmi / sun . rmi . log
* @ run main / othervm SnapshotSize
*/
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;
}
}
Messung V0.5 in Prozent C=67 H=95 G=81
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