/**
* get meta, that is correct target of timestamp if present
*
* @param timestamp
*/
private ChunkMeta getChunkMeta(BTreeMap<Integer, ChunkMeta> chunkMetaMap, int timestamp) {
int timestamp_year = TimeUtil.roundLowerYear(timestamp);
int timestamp_next_year = TimeUtil.roundNextYear(timestamp);
Integer key = chunkMetaMap.ceilingKey(timestamp_year);
if (key == null) {
return null;
}
if (timestamp_next_year <= key) {
return null;
}
ChunkMeta chunkMeta = chunkMetaMap.get(key);
throwNull(chunkMeta);
return chunkMeta;
}
private void insertIntoOneChunk(
BTreeMap<Integer, ChunkMeta> chunkMetaMap,
BTreeMap<Integer, Chunk> chunkMap,
ArrayList<DataEntry> entryList) {
// int timestamp_chunk = TimeConverter.roundLowerYear(entryList.get(0).timestamp);
int timestamp_next_year = TimeUtil.roundNextYear(entryList.get(0).timestamp);
if (timestamp_next_year <= entryList.get(entryList.size() - 1).timestamp) {
throw new RuntimeException("data of more than one chunk");
}
// ChunkMeta oldChunkMeta = chunkMetaMap.get(timestamp_chunk);
ChunkMeta oldChunkMeta = getChunkMeta(chunkMetaMap, entryList.get(0).timestamp);
if (oldChunkMeta == null) {
insertChunk(chunkMetaMap, chunkMap, Chunk.of(entryList));
} else {
Chunk oldChunk = chunkMap.get(oldChunkMeta.firstTimestamp);
Iterator<DataEntry> oldIt = Arrays.stream(oldChunk.data).iterator();
Iterator<DataEntry> newIt = entryList.iterator();
ArrayList<DataEntry> resultList = new ArrayList<DataEntry>();
DataEntry old_curr = oldIt.hasNext() ? oldIt.next() : null;
DataEntry new_curr = newIt.hasNext() ? newIt.next() : null;
while (old_curr != null || new_curr != null) {
if (old_curr != null) {
if (new_curr != null) {
if (old_curr.timestamp == new_curr.timestamp) { // overwrite old data with new data
resultList.add(new_curr);
old_curr = oldIt.hasNext() ? oldIt.next() : null;
new_curr = newIt.hasNext() ? newIt.next() : null;
} else if (old_curr.timestamp < new_curr.timestamp) {
resultList.add(old_curr);
old_curr = oldIt.hasNext() ? oldIt.next() : null;
} else {
resultList.add(new_curr);
new_curr = newIt.hasNext() ? newIt.next() : null;
}
} else {
resultList.add(old_curr);
old_curr = oldIt.hasNext() ? oldIt.next() : null;
}
} else {
resultList.add(new_curr);
new_curr = newIt.hasNext() ? newIt.next() : null;
}
}
removeChunk(chunkMetaMap, chunkMap, oldChunkMeta);
insertChunk(chunkMetaMap, chunkMap, Chunk.of(resultList));
}
}
public void insertSensorData(String stationName, String sensorName, DataEntry[] data) {
// log.info("streamDB insert data "+stationName+" "+sensorName+" "+data.length);
throwNull(stationName);
throwNull(sensorName);
throwNull(data);
if (data.length == 0) {
log.warn("no data to insert");
return;
}
SensorMeta sensorMeta = getSensorMeta(stationName, sensorName, true);
BTreeMap<Integer, ChunkMeta> chunkMetaMap = getSensorChunkMetaMap(sensorMeta);
BTreeMap<Integer, Chunk> chunkMap = getSensorChunkMap(sensorMeta);
int timestamp_next_year = Integer.MIN_VALUE;
ArrayList<DataEntry> entryList = new ArrayList<DataEntry>(data.length);
int prevTimestamp = -1;
for (DataEntry entry : data) {
if (entry.timestamp <= prevTimestamp) {
throw new RuntimeException(
"not ordered timestamps "
+ TimeUtil.oleMinutesToText(prevTimestamp)
+ " "
+ TimeUtil.oleMinutesToText(entry.timestamp)
+ " "
+ entry.value
+ " "
+ stationName
+ "/"
+ sensorName);
}
if (entry.timestamp < timestamp_next_year) {
entryList.add(entry);
} else {
if (!entryList.isEmpty()) {
insertIntoOneChunk(chunkMetaMap, chunkMap, entryList);
}
timestamp_next_year = TimeUtil.roundNextYear(entry.timestamp);
entryList.clear();
entryList.add(entry);
}
prevTimestamp = entry.timestamp;
}
if (!entryList.isEmpty()) {
insertIntoOneChunk(chunkMetaMap, chunkMap, entryList);
}
}
