/**
* Extends its super class to read in database operation information.
*
* @see LNLogEntry#readEntry
*/
@Override
public void readEntry(EnvironmentImpl envImpl, LogEntryHeader header, ByteBuffer entryBuffer) {
readBaseLNEntry(envImpl, header, entryBuffer, false /*keyIsLastSerializedField*/);
/*
* The NameLNLogEntry was introduced in version 6. Before, a LNLogEntry
* was used for NameLNs, and there is no extra information in the log
* entry.
*/
int version = header.getVersion();
if (version >= 6) {
operationType = DbOperationType.readTypeFromLog(entryBuffer, version);
if (DbOperationType.isWriteConfigType(operationType)) {
replicatedCreateConfig = new ReplicatedDatabaseConfig();
replicatedCreateConfig.readFromLog(entryBuffer, version);
}
if (operationType == DbOperationType.TRUNCATE) {
truncateOldDbId = new DatabaseId();
truncateOldDbId.readFromLog(entryBuffer, version);
}
} else {
operationType = DbOperationType.NONE;
}
}
/**
* Extends its super class to add in database operation information.
*
* @see LNLogEntry#getSize
*/
@Override
public int getSize() {
int size = getBaseLNEntrySize(false /*keyIsLastSerializedField*/) + operationType.getLogSize();
if (DbOperationType.isWriteConfigType(operationType)) {
size += replicatedCreateConfig.getLogSize();
}
if (operationType == DbOperationType.TRUNCATE) {
size += truncateOldDbId.getLogSize();
}
return size;
}
/**
* Extends its super class to add in database operation information.
*
* @see LogEntry#writeToLog
*/
@Override
public void writeEntry(LogEntryHeader header, ByteBuffer destBuffer) {
writeBaseLNEntry(header, destBuffer, false /*keyIsLastSerializedField*/);
operationType.writeToLog(destBuffer);
if (DbOperationType.isWriteConfigType(operationType)) {
replicatedCreateConfig.writeToLog(destBuffer);
}
if (operationType == DbOperationType.TRUNCATE) {
truncateOldDbId.writeToLog(destBuffer);
}
}
/** Constructor to write this entry. */
public NameLNLogEntry(
LogEntryType entryType,
NameLN nameLN,
DatabaseId dbId,
byte[] key,
long abortLsn,
boolean abortKnownDeleted,
Txn txn,
ReplicationContext repContext) {
super(entryType, nameLN, dbId, key, abortLsn, abortKnownDeleted, txn);
ReplicationContext operationContext = repContext;
operationType = repContext.getDbOperationType();
if (DbOperationType.isWriteConfigType(operationType)) {
replicatedCreateConfig = ((DbOpReplicationContext) operationContext).getCreateConfig();
}
if (operationType == DbOperationType.TRUNCATE) {
truncateOldDbId = ((DbOpReplicationContext) operationContext).getTruncateOldDbId();
}
}