/**
* This method will attempt to checksum the current JE db environment by computing the Adler-32
* checksum on the latest JE log file available.
*
* @return The checksum of JE db environment or zero if checksum failed.
*/
private long checksumDbEnv() {
File parentDirectory = getFileForPath(cfg.getDBDirectory());
File backendDirectory = new File(parentDirectory, cfg.getBackendId());
List<File> jdbFiles = new ArrayList<File>();
if (backendDirectory.isDirectory()) {
jdbFiles =
Arrays.asList(
backendDirectory.listFiles(
new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".jdb");
}
}));
}
if (!jdbFiles.isEmpty()) {
Collections.sort(jdbFiles, Collections.reverseOrder());
FileInputStream fis = null;
try {
fis = new FileInputStream(jdbFiles.get(0).toString());
CheckedInputStream cis = new CheckedInputStream(fis, new Adler32());
byte[] tempBuf = new byte[8192];
while (cis.read(tempBuf) >= 0) {}
return cis.getChecksum().getValue();
} catch (Exception e) {
if (debugEnabled()) {
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
} finally {
if (fis != null) {
try {
fis.close();
} catch (Exception e) {
if (debugEnabled()) {
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
}
}
}
}
return 0;
}
/** {@inheritDoc} */
public boolean isConfigurationChangeAcceptable(
LocalDBBackendCfg cfg, List<Message> unacceptableReasons) {
// Make sure that the logging level value is acceptable.
try {
Level.parse(cfg.getDBLoggingLevel());
} catch (Exception e) {
Message message =
ERR_JEB_INVALID_LOGGING_LEVEL.get(
String.valueOf(cfg.getDBLoggingLevel()), String.valueOf(cfg.dn()));
unacceptableReasons.add(message);
return false;
}
return true;
}