@Test
public void shouldReturnFalseWhenThereIsAStartEntryButNoCommitEntries() throws IOException {
// given
when(entryReader.readLogEntry(channel)).thenReturn(A_START_ENTRY, NULL_ENTRY);
// when
final boolean result = cursor.next();
// then
assertFalse(result);
assertNull(cursor.get());
}
@Override
public boolean next() throws IOException {
LogEntry entry = entryReader.readLogEntry(channel);
if (entry == null) {
return false;
}
assert entry instanceof LogEntryStart : "Expected Start entry, read " + entry + " instead";
LogEntryStart startEntry = (LogEntryStart) entry;
LogEntryCommit commitEntry;
List<Command> entries = commandList();
while (true) {
entry = entryReader.readLogEntry(channel);
if (entry == null) {
return false;
}
if (entry instanceof LogEntryCommit) {
commitEntry = entry.as();
break;
}
entries.add(entry.<LogEntryCommand>as().getXaCommand());
}
PhysicalTransactionRepresentation transaction = new PhysicalTransactionRepresentation(entries);
transaction.setHeader(
startEntry.getAdditionalHeader(),
startEntry.getMasterId(),
startEntry.getLocalId(),
startEntry.getTimeWritten(),
startEntry.getLastCommittedTxWhenTransactionStarted(),
commitEntry.getTimeWritten(),
-1);
current = new CommittedTransactionRepresentation(startEntry, transaction, commitEntry);
return true;
}
@Test
public void shouldCallTheVisitorWithTheFoundTransaction() throws IOException {
// given
when(entryReader.readLogEntry(channel))
.thenReturn(A_START_ENTRY, A_COMMAND_ENTRY, A_COMMIT_ENTRY);
// when
cursor.next();
// then
PhysicalTransactionRepresentation txRepresentation =
new PhysicalTransactionRepresentation(Arrays.asList(A_COMMAND_ENTRY.getXaCommand()));
assertEquals(
new CommittedTransactionRepresentation(A_START_ENTRY, txRepresentation, A_COMMIT_ENTRY),
cursor.get());
}