/**
* 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;
}
/** {@inheritDoc} */
@Override
public void search(SearchOperation searchOperation) throws DirectoryException {
// Get the base entry for the search, if possible. If it doesn't exist,
// then this will throw an exception.
DN baseDN = searchOperation.getBaseDN();
Entry baseEntry = getEntry(baseDN);
// Look at the base DN and see if it's the backup base DN, a backup
// directory entry DN, or a backup entry DN.
DN parentDN;
SearchScope scope = searchOperation.getScope();
SearchFilter filter = searchOperation.getFilter();
if (backupBaseDN.equals(baseDN)) {
if ((scope == SearchScope.BASE_OBJECT || scope == SearchScope.WHOLE_SUBTREE)
&& filter.matchesEntry(baseEntry)) {
searchOperation.returnEntry(baseEntry, null);
}
if (scope != SearchScope.BASE_OBJECT && !backupDirectories.isEmpty()) {
AttributeType backupPathType =
DirectoryServer.getAttributeType(ATTR_BACKUP_DIRECTORY_PATH, true);
for (File f : backupDirectories) {
// Check to see if the descriptor file exists. If not, then skip this
// backup directory.
File descriptorFile = new File(f, BACKUP_DIRECTORY_DESCRIPTOR_FILE);
if (!descriptorFile.exists()) {
continue;
}
DN backupDirDN = makeChildDN(backupBaseDN, backupPathType, f.getAbsolutePath());
Entry backupDirEntry;
try {
backupDirEntry = getBackupDirectoryEntry(backupDirDN);
} catch (Exception e) {
if (debugEnabled()) {
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
continue;
}
if (filter.matchesEntry(backupDirEntry)) {
searchOperation.returnEntry(backupDirEntry, null);
}
if (scope != SearchScope.SINGLE_LEVEL) {
List<Attribute> attrList = backupDirEntry.getAttribute(backupPathType);
if (attrList != null && !attrList.isEmpty()) {
for (AttributeValue v : attrList.get(0)) {
try {
BackupDirectory backupDirectory =
BackupDirectory.readBackupDirectoryDescriptor(v.getValue().toString());
AttributeType idType = DirectoryServer.getAttributeType(ATTR_BACKUP_ID, true);
for (String backupID : backupDirectory.getBackups().keySet()) {
DN backupEntryDN = makeChildDN(backupDirDN, idType, backupID);
Entry backupEntry = getBackupEntry(backupEntryDN);
if (filter.matchesEntry(backupEntry)) {
searchOperation.returnEntry(backupEntry, null);
}
}
} catch (Exception e) {
if (debugEnabled()) {
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
continue;
}
}
}
}
}
}
} else if (backupBaseDN.equals(parentDN = baseDN.getParentDNInSuffix())) {
Entry backupDirEntry = getBackupDirectoryEntry(baseDN);
if ((scope == SearchScope.BASE_OBJECT || scope == SearchScope.WHOLE_SUBTREE)
&& filter.matchesEntry(backupDirEntry)) {
searchOperation.returnEntry(backupDirEntry, null);
}
if (scope != SearchScope.BASE_OBJECT) {
AttributeType t = DirectoryServer.getAttributeType(ATTR_BACKUP_DIRECTORY_PATH, true);
List<Attribute> attrList = backupDirEntry.getAttribute(t);
if (attrList != null && !attrList.isEmpty()) {
for (AttributeValue v : attrList.get(0)) {
try {
BackupDirectory backupDirectory =
BackupDirectory.readBackupDirectoryDescriptor(v.getValue().toString());
AttributeType idType = DirectoryServer.getAttributeType(ATTR_BACKUP_ID, true);
for (String backupID : backupDirectory.getBackups().keySet()) {
DN backupEntryDN = makeChildDN(baseDN, idType, backupID);
Entry backupEntry = getBackupEntry(backupEntryDN);
if (filter.matchesEntry(backupEntry)) {
searchOperation.returnEntry(backupEntry, null);
}
}
} catch (Exception e) {
if (debugEnabled()) {
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
continue;
}
}
}
}
} else {
if (parentDN == null || !backupBaseDN.equals(parentDN.getParentDNInSuffix())) {
Message message = ERR_BACKUP_NO_SUCH_ENTRY.get(String.valueOf(backupBaseDN));
throw new DirectoryException(ResultCode.NO_SUCH_OBJECT, message);
}
if (scope == SearchScope.BASE_OBJECT || scope == SearchScope.WHOLE_SUBTREE) {
Entry backupEntry = getBackupEntry(baseDN);
if (backupEntry == null) {
Message message = ERR_BACKUP_NO_SUCH_ENTRY.get(String.valueOf(backupBaseDN));
throw new DirectoryException(ResultCode.NO_SUCH_OBJECT, message);
}
if (filter.matchesEntry(backupEntry)) {
searchOperation.returnEntry(backupEntry, null);
}
}
}
}
/** {@inheritDoc} */
@Override
public long numSubordinates(DN entryDN, boolean subtree) throws DirectoryException {
// If the requested entry was null, then return undefined.
if (entryDN == null) {
return -1;
}
// If the requested entry was the backend base entry, then return
// the number of backup directories.
if (backupBaseDN.equals(entryDN)) {
long count = 0;
for (File f : backupDirectories) {
// Check to see if the descriptor file exists. If not, then skip this
// backup directory.
File descriptorFile = new File(f, BACKUP_DIRECTORY_DESCRIPTOR_FILE);
if (!descriptorFile.exists()) {
continue;
}
// If subtree is included, count the number of entries for each
// backup directory.
if (subtree) {
try {
BackupDirectory backupDirectory =
BackupDirectory.readBackupDirectoryDescriptor(f.getPath());
count += backupDirectory.getBackups().keySet().size();
} catch (Exception e) {
return -1;
}
}
count++;
}
return count;
}
// See if the requested entry was one level below the backend base entry.
// If so, then it must point to a backup directory. Otherwise, it must be
// two levels below the backup base entry and must point to a specific
// backup.
DN parentDN = entryDN.getParentDNInSuffix();
if (parentDN == null) {
return -1;
} else if (backupBaseDN.equals(parentDN)) {
long count = 0;
Entry backupDirEntry = getBackupDirectoryEntry(entryDN);
AttributeType t = DirectoryServer.getAttributeType(ATTR_BACKUP_DIRECTORY_PATH, true);
List<Attribute> attrList = backupDirEntry.getAttribute(t);
if (attrList != null && !attrList.isEmpty()) {
for (AttributeValue v : attrList.get(0)) {
try {
BackupDirectory backupDirectory =
BackupDirectory.readBackupDirectoryDescriptor(v.getValue().toString());
count += backupDirectory.getBackups().keySet().size();
} catch (Exception e) {
return -1;
}
}
}
return count;
} else if (backupBaseDN.equals(parentDN.getParentDNInSuffix())) {
return 0;
} else {
return -1;
}
}