package voldemort.store.bdb.dataconversion;
import java.util.List;
import voldemort.serialization.IdentitySerializer;
import voldemort.serialization.VersionedSerializer;
import voldemort.store.StoreBinaryFormat;
import voldemort.versioning.Versioned;
import com.sleepycat.je.DatabaseEntry;
import com.sleepycat.je.LockMode;
import com.sleepycat.je.OperationStatus;
public class BdbRevertNewDupToBase extends AbstractBdbConversion {
BdbRevertNewDupToBase(String storeName,
String clusterXmlPath,
String sourceEnvPath,
String destEnvPath,
int logFileSize,
int nodeMax) throws Exception {
super(storeName, clusterXmlPath, sourceEnvPath, destEnvPath, logFileSize, nodeMax);
}
@Override
public void transfer() throws Exception {
cursor = srcDB.openCursor(null, null);
DatabaseEntry keyEntry = new DatabaseEntry();
DatabaseEntry valueEntry = new DatabaseEntry();
VersionedSerializer<byte[]> versionedSerializer = new VersionedSerializer<byte[]>(new IdentitySerializer());
List<Versioned<byte[]>> vals;
long startTime = System.currentTimeMillis();
int scanCount = 0;
int keyCount = 0;
while(cursor.getNext(keyEntry, valueEntry, LockMode.READ_UNCOMMITTED) == OperationStatus.SUCCESS) {
keyCount++;
vals = StoreBinaryFormat.fromByteArray(valueEntry.getData());
for(Versioned<byte[]> val: vals) {
OperationStatus putStatus = dstDB.put(null,
keyEntry,
new DatabaseEntry(versionedSerializer.toBytes(val)));
if(OperationStatus.SUCCESS != putStatus) {
String errorStr = "Put failed with " + putStatus + " for key"
+ BdbConvertData.writeAsciiString(keyEntry.getData());
logger.error(errorStr);
throw new Exception(errorStr);
}
scanCount++;
}
if(scanCount % 1000000 == 0)
logger.info("Reverted " + scanCount + " entries in "
+ (System.currentTimeMillis() - startTime) / 1000 + " secs");
}
logger.info("Reverted " + scanCount + " entries and " + keyCount + " keys in "
+ (System.currentTimeMillis() - startTime) / 1000 + " secs");
}
@Override
public boolean areDuplicatesNeededForSrc() {
return false;
}
@Override
public boolean areDuplicatesNeededForDest() {
return true;
}
}