/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.controller.audit;
import org.jboss.as.controller.logging.ControllerLogger;
import org.jboss.as.controller.services.path.PathManagerService;
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
/**
* All methods on this class should be called with {@link org.jboss.as.controller.audit.ManagedAuditLoggerImpl}'s lock taken.
*
* @author <a href="mailto:istudens@redhat.com">Ivo Studensky</a>
*/
public class SizeRotatingFileAuditLogHandler extends AbstractFileAuditLogHandler {
// by default, rotate at 10MB
private long rotateSize = 0xa0000L;
private int maxBackupIndex = 1;
private volatile long currentSize = 0;
public SizeRotatingFileAuditLogHandler(final String name, final String formatterName, final int maxFailureCount, final PathManagerService pathManager, final String path, final String relativeTo, final long rotateSize, final int maxBackupIndex) {
super(name, formatterName, maxFailureCount, pathManager, path, relativeTo);
this.rotateSize = rotateSize;
this.maxBackupIndex = maxBackupIndex;
}
@Override
protected void initializeAtStartup(final File file) {
currentSize = file.length();
}
@Override
protected void rotateLogFile(final File file) {
if (currentSize > this.rotateSize) {
// rotate
if (maxBackupIndex > 0) {
// first, drop the max file (if any), then move each file to the next higher slot.
new File(file.getAbsolutePath() + "." + maxBackupIndex).delete();
for (int i = maxBackupIndex - 1; i >= 1; i--) {
final File from = new File(file.getAbsolutePath() + "." + i);
final File to = new File(file.getAbsolutePath() + "." + (i + 1));
try {
rename(from, to);
} catch (IOException e) {
throw ControllerLogger.ROOT_LOGGER.couldNotBackUp(e, from.getAbsolutePath(), to.getAbsolutePath());
}
}
final File backup = new File(file.getAbsolutePath() + ".1");
try {
rename(file, backup);
} catch (IOException e) {
throw ControllerLogger.ROOT_LOGGER.couldNotBackUp(e, file.getAbsolutePath(), backup.getAbsolutePath());
}
} else {
// just ditch out the content of audit log if maxBackupIndex == 0
file.delete();
}
createNewFile(file);
currentSize = 0;
}
}
@Override
void writeLogItem(String formattedItem) throws IOException {
super.writeLogItem(formattedItem);
currentSize += formattedItem.getBytes(StandardCharsets.UTF_8).length;
currentSize += LINE_TERMINATOR.length;
}
@Override
boolean isDifferent(AuditLogHandler other){
if (other instanceof SizeRotatingFileAuditLogHandler == false){
return true;
}
SizeRotatingFileAuditLogHandler otherHandler = (SizeRotatingFileAuditLogHandler)other;
if (rotateSize != otherHandler.rotateSize) {
return true;
}
if (maxBackupIndex != otherHandler.maxBackupIndex) {
return true;
}
if (super.isDifferent(other)) {
return true;
}
return false;
}
}