private synchronized void mergeAndWrite() throws IOException {
List<CheckpointData> ackedList = new ArrayList<CheckpointData>();
List<CheckpointData> removed = new ArrayList<CheckpointData>();
for (CheckpointData data : pending) {
if (data.isAcked == true) {
ackedList.add(data);
removed.add(data);
} else {
break;
}
}
pending.removeAll(removed);
// TODO rety(tag)로 충분하나?. 순서대로 안왔을 때 보장은 안 해줘도 되나?
for (CheckpointData data : ackedList) {
for (String fileName : data.fileOffsets.keySet()) {
fileOffsets.put(fileName, data.fileOffsets.get(fileName));
}
}
writeToFile();
}
