FileLogFetcher fetcher = new FileLogFetcher(bufferSize);
LogDecoder decoder = new LogDecoder();
decoder.handle(LogEvent.QUERY_EVENT);
decoder.handle(LogEvent.XID_EVENT);
LogContext context = new LogContext();
try {
fetcher.open(current);
context.setLogPosition(new LogPosition(current.getName()));
while (running) {
boolean needContinue = true;
String lastXidLogFilename = current.getName();
long lastXidLogFileOffset = 0;
binlogFilename = lastXidLogFilename;
binlogFileOffset = lastXidLogFileOffset;
L: while (fetcher.fetch()) {
LogEvent event;
do {
event = decoder.decode(fetcher, context);
if (event != null) {
if (event.getWhen() > timestampSeconds) {
break L;
}
needContinue = false;
if (LogEvent.QUERY_EVENT == event.getHeader().getType()) {
if (StringUtils.endsWithIgnoreCase(((QueryLogEvent) event).getQuery(), "BEGIN")) {
binlogFilename = lastXidLogFilename;
binlogFileOffset = lastXidLogFileOffset;
} else if (StringUtils.endsWithIgnoreCase(((QueryLogEvent) event).getQuery(), "COMMIT")) {
lastXidLogFilename = current.getName();
lastXidLogFileOffset = event.getLogPos();
}
} else if (LogEvent.XID_EVENT == event.getHeader().getType()) {
lastXidLogFilename = current.getName();
lastXidLogFileOffset = event.getLogPos();
}
}
} while (event != null);
}
if (needContinue) {// 读取下一个
fetcher.close(); // 关闭上一个文件
File nextFile = binlogs.getBefore(current);
if (nextFile == null) {
break;
}
current = nextFile;
fetcher.open(current);
context.setLogPosition(new LogPosition(current.getName()));
} else {
break;// 跳出
}
}
} finally {