static {
ImmutableMap.Builder<Integer, DRRecordType> b = ImmutableMap.builder();
for (DRRecordType t : DRRecordType.values()) {
b.put(t.ordinal(), t);
}
conversion = b.build();
}
public static synchronized void pushDRBuffer(int partitionId, ByteBuffer buf) {
if (logDebug) {
System.out.println("Received DR buffer size " + buf.remaining());
AtomicLong haveOpenTransaction = haveOpenTransactionLocal.get();
buf.order(ByteOrder.LITTLE_ENDIAN);
// Magic header space for Java for implementing zero copy stuff
buf.position(8);
while (buf.hasRemaining()) {
int startPosition = buf.position();
byte version = buf.get();
int type = buf.get();
int checksum = 0;
if (version != 0) System.out.println("Remaining is " + buf.remaining());
switch (DRRecordType.valueOf(type)) {
case INSERT:
{
// Insert
if (haveOpenTransaction.get() == -1) {
System.out.println("Have insert but no open transaction");
System.exit(-1);
}
final long tableHandle = buf.getLong();
final int lengthPrefix = buf.getInt();
buf.position(buf.position() + lengthPrefix);
checksum = buf.getInt();
System.out.println(
"Version "
+ version
+ " type INSERT table handle "
+ tableHandle
+ " length "
+ lengthPrefix
+ " checksum "
+ checksum);
break;
}
case DELETE:
{
// Delete
if (haveOpenTransaction.get() == -1) {
System.out.println("Have insert but no open transaction");
System.exit(-1);
}
final long tableHandle = buf.getLong();
final int lengthPrefix = buf.getInt();
buf.position(buf.position() + lengthPrefix);
checksum = buf.getInt();
System.out.println(
"Version "
+ version
+ " type DELETE table handle "
+ tableHandle
+ " length "
+ lengthPrefix
+ " checksum "
+ checksum);
break;
}
case UPDATE:
// Update
// System.out.println("Version " + version + " type UPDATE " + checksum " + checksum);
break;
case BEGIN_TXN:
{
// Begin txn
final long txnId = buf.getLong();
final long spHandle = buf.getLong();
if (haveOpenTransaction.get() != -1) {
System.out.println(
"Have open transaction txnid "
+ txnId
+ " spHandle "
+ spHandle
+ " but already open transaction");
System.exit(-1);
}
haveOpenTransaction.set(spHandle);
checksum = buf.getInt();
System.out.println(
"Version "
+ version
+ " type BEGIN_TXN "
+ " txnid "
+ txnId
+ " spHandle "
+ spHandle
+ " checksum "
+ checksum);
break;
}
case END_TXN:
{
// End txn
final long spHandle = buf.getLong();
if (haveOpenTransaction.get() == -1) {
System.out.println(
"Have end transaction spHandle "
+ spHandle
+ " but no open transaction and its less then last committed "
+ lastCommittedSpHandle.get().get());
// checksum = buf.getInt();
// break;
System.exit(-1);
}
haveOpenTransaction.set(-1);
lastCommittedSpHandle.get().set(spHandle);
checksum = buf.getInt();
System.out.println(
"Version "
+ version
+ " type END_TXN "
+ " spHandle "
+ spHandle
+ " checksum "
+ checksum);
break;
}
}
int calculatedChecksum =
DBBPool.getBufferCRC32C(buf, startPosition, buf.position() - startPosition - 4);
if (calculatedChecksum != checksum) {
System.out.println("Checksum " + calculatedChecksum + " didn't match " + checksum);
System.exit(-1);
}
}
}
final BBContainer cont = DBBPool.wrapBB(buf);
DBBPool.registerUnsafeMemory(cont.address());
cont.discard();
}
