qiaojialin commented on a change in pull request #758: new
SeriesDataRandomReader
URL: https://github.com/apache/incubator-iotdb/pull/758#discussion_r373469710
##########
File path:
server/src/main/java/org/apache/iotdb/db/query/reader/seriesRelated/SeriesDataRandomReader.java
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@@ -419,4 +490,148 @@ public void close() throws IOException {
openedChunkLoader.close();
}
}
+
+ public IPointReader getIPointReader() {
+ return new Ite();
+ }
+
+ public IBatchReader getIBatchReader() {
+ return new BatchIte();
+ }
+
+ private class BatchIte implements IBatchReader {
+
+ private BatchData batchData;
+ private boolean hasCachedBatchData = false;
+
+ /**
+ * This method overrides the AbstractDataReader.hasNextOverlappedPage for
pause reads, to
+ * achieve a continuous read
+ */
+ @Override
+ public boolean hasNextBatch() throws IOException {
+
+ if (hasCachedBatchData) {
+ return true;
+ }
+
+ while (hasNextChunk()) {
+ while (hasNextPage()) {
+ if (!isPageOverlapped()) {
+ batchData = nextPage();
+ hasCachedBatchData = true;
+ return true;
+ }
+ while (hasNextOverlappedPage()) {
+ batchData = nextOverlappedPage();
+ hasCachedBatchData = true;
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+
+ @Override
+ public BatchData nextBatch() throws IOException {
+ if (hasCachedBatchData || hasNextBatch()) {
+ hasCachedBatchData = false;
+ return batchData;
+ }
+ throw new IOException("no next batch");
+ }
+
+ @Override
+ public void close() throws IOException {
+ }
+ }
+
+ private class Ite implements IPointReader {
Review comment:
SeriesPointReader
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