private int mapLogEntryTypeToDatabaseType(LogEntry.Type type) {
switch (type) {
case SENTINEL:
return 0;
case NOOP:
return 1;
case CONFIGURATION:
return 2;
case CLIENT:
return 3;
default:
throw new IllegalArgumentException("unrecognized type:" + type.name());
}
}
private LogEntry newLogEntryFromDatabaseRow(
LogEntry.Type type, long logIndex, long term, byte[] serializedData) throws IOException {
switch (type) {
case SENTINEL:
checkArgument(
logIndex == LogEntry.SENTINEL.getIndex(), "mismatched sentinel logIndex:%s", logIndex);
checkArgument(term == LogEntry.SENTINEL.getTerm(), "mismatched sentinel term:%s", term);
return LogEntry.SENTINEL;
case NOOP:
return new LogEntry.NoopEntry(logIndex, term);
case CONFIGURATION:
return new LogEntry.ConfigurationEntry(
logIndex, term, Sets.<String>newHashSet(), Sets.<String>newHashSet());
case CLIENT:
InputStream in = new ByteArrayInputStream(serializedData);
Command command = commandDeserializer.deserialize(in);
return new LogEntry.ClientEntry(logIndex, term, command);
default:
throw new IllegalArgumentException("unrecognized type:" + type.name());
}
}