public void transferApplicationState(SocketChannel sChannel, int eid) {
FileRecoverer fr = new FileRecoverer(id, DEFAULT_DIR);
fr.transferCkpState(sChannel, lastCkpPath);
// int lastCheckpointEid = getLastCheckpointEid();
// int lastEid = getLastEid();
// if (eid >= lastCheckpointEid && eid <= lastEid) {
// int size = eid - lastCheckpointEid;
// fr.transferLog(sChannel, size);
// }
}
/**
* Constructs a TransferableState using this log information
*
* @param eid Execution ID correspondent to desired state
* @return TransferableState Object containing this log information
*/
public DefaultApplicationState getApplicationState(int eid, boolean sendState) {
// readingState = true;
CommandsInfo[] batches = null;
int lastCheckpointEid = getLastCheckpointEid();
int lastEid = getLastEid();
System.out.println("LAST CKP EID = " + lastCheckpointEid);
System.out.println("EID = " + eid);
System.out.println("LAST EID = " + lastEid);
if (eid >= lastCheckpointEid && eid <= lastEid) {
int size = eid - lastCheckpointEid;
FileRecoverer fr = new FileRecoverer(id, DEFAULT_DIR);
// if (size > 0 && sendState) {
if (size > 0) {
CommandsInfo[] recoveredBatches = fr.getLogState(size, logPath);
batches = new CommandsInfo[size];
for (int i = 0; i < size; i++) batches[i] = recoveredBatches[i];
}
checkpointLock.lock();
byte[] ckpState = fr.getCkpState(lastCkpPath);
byte[] ckpStateHash = fr.getCkpStateHash();
checkpointLock.unlock();
System.out.println("--- FINISHED READING STATE");
// readingState = false;
// return new DefaultApplicationState((sendState ? batches : null), lastCheckpointEid,
return new DefaultApplicationState(
batches, lastCheckpointEid, eid, (sendState ? ckpState : null), ckpStateHash);
}
return null;
}
protected ApplicationState loadDurableState() {
FileRecoverer fr = new FileRecoverer(id, DEFAULT_DIR);
lastCkpPath = fr.getLatestFile(".ckp");
logPath = fr.getLatestFile(".log");
byte[] checkpoint = null;
if (lastCkpPath != null) checkpoint = fr.getCkpState(lastCkpPath);
CommandsInfo[] log = null;
if (logPath != null) log = fr.getLogState(0, logPath);
int ckpLastConsensusId = fr.getCkpLastConsensusId();
int logLastConsensusId = fr.getLogLastConsensusId();
System.out.println("log last consensus di: " + logLastConsensusId);
ApplicationState state =
new DefaultApplicationState(
log, ckpLastConsensusId, logLastConsensusId, checkpoint, fr.getCkpStateHash());
if (logLastConsensusId > ckpLastConsensusId) {
super.setLastEid(logLastConsensusId);
} else super.setLastEid(ckpLastConsensusId);
super.setLastCheckpointEid(ckpLastConsensusId);
return state;
}
