THUMarkLau commented on code in PR #7276:
URL: https://github.com/apache/iotdb/pull/7276#discussion_r975033336
##########
tsfile/src/main/java/org/apache/iotdb/tsfile/write/writer/TsFileIOWriter.java:
##########
@@ -490,6 +546,30 @@ public TsFileOutput getIOWriterOut() {
* @return DeviceTimeseriesMetadataMap
*/
public Map<String, List<TimeseriesMetadata>>
getDeviceTimeseriesMetadataMap() {
+ Map<String, List<TimeseriesMetadata>> deviceTimeseriesMetadataMap = new
TreeMap<>();
+ Map<String, Map<String, List<IChunkMetadata>>> chunkMetadataMap = new
TreeMap<>();
+ for (ChunkGroupMetadata chunkGroupMetadata : chunkGroupMetadataList) {
+ for (ChunkMetadata chunkMetadata :
chunkGroupMetadata.getChunkMetadataList()) {
+ chunkMetadataMap
+ .computeIfAbsent(chunkGroupMetadata.getDevice(), x -> new
TreeMap<>())
+ .computeIfAbsent(chunkMetadata.getMeasurementUid(), x -> new
ArrayList<>())
+ .add(chunkMetadata);
+ }
+ }
+ for (String device : chunkMetadataMap.keySet()) {
+ Map<String, List<IChunkMetadata>> seriesToChunkMetadataMap =
chunkMetadataMap.get(device);
+ for (Map.Entry<String, List<IChunkMetadata>> entry :
seriesToChunkMetadataMap.entrySet()) {
+ try {
+ deviceTimeseriesMetadataMap
+ .computeIfAbsent(device, x -> new ArrayList<>())
+ .add(TSMIterator.constructOneTimeseriesMetadata(entry.getKey(),
entry.getValue()));
+ } catch (IOException e) {
+ logger.error("Failed to get device timeseries metadata map", e);
+ return null;
+ }
+ }
+ }
+
Review Comment:
As above
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