public void create() throws IOException {
segment.create(START_SIZE);
super.create();
final OFile f = segment.getFile();
if (OGlobalConfiguration.STORAGE_CONFIGURATION_SYNC_ON_UPDATE.getValueAsBoolean()) f.synch();
}
@Override
public OStorageConfiguration load() throws OSerializationException {
try {
if (segment.getFile().exists()) segment.open();
else {
segment.create(START_SIZE);
// @COMPATIBILITY0.9.25
// CHECK FOR OLD VERSION OF DATABASE
final ORawBuffer rawRecord = storage.readRecord(CONFIG_RID, null, false, null).getResult();
if (rawRecord != null) fromStream(rawRecord.buffer);
update();
return this;
}
final int size = segment.getFile().readInt(0);
byte[] buffer = new byte[size];
segment.getFile().read(OBinaryProtocol.SIZE_INT, buffer, size);
fromStream(buffer);
} catch (Exception e) {
throw new OSerializationException(
"Cannot load database's configuration. The database seems to be corrupted.", e);
}
return this;
}
@Override
public void update() throws OSerializationException {
try {
final OFile f = segment.getFile();
if (!f.isOpen()) return;
final byte[] buffer = toStream();
final int len = buffer.length + OBinaryProtocol.SIZE_INT;
if (len > f.getFileSize()) f.allocateSpace(len - f.getFileSize());
f.writeInt(0, buffer.length);
f.write(OBinaryProtocol.SIZE_INT, buffer);
if (OGlobalConfiguration.STORAGE_CONFIGURATION_SYNC_ON_UPDATE.getValueAsBoolean()) f.synch();
} catch (Exception e) {
throw new OSerializationException("Error on update storage configuration", e);
}
}
@Override
public void unlock() throws IOException {
if (segment != null) segment.getFile().unlock();
}
public void close() throws IOException {
segment.close();
}
@Override
public void setSoftlyClosed(boolean softlyClosed) throws IOException {
segment.getFile().setSoftlyClosed(softlyClosed);
}
public void synch() throws IOException {
segment.getFile().synch();
}
public void create() throws IOException {
segment.create(START_SIZE);
super.create();
}