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[CALCITE-1734] Fix select query result parsing with druid 0.9.2 #416

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[CALCITE-1734] Fix select query result parsing with druid 0.9.2 #416

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59 changes: 32 additions & 27 deletions druid/src/main/java/org/apache/calcite/adapter/druid/DruidConnectionImpl.java
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Expand Up @@ -188,36 +188,41 @@ private void parse(QueryType queryType, InputStream in, Sink sink,
if (parser.nextToken() == JsonToken.FIELD_NAME
&& parser.getCurrentName().equals("result")
&& parser.nextToken() == JsonToken.START_OBJECT) {
if (parser.nextToken() == JsonToken.FIELD_NAME
&& parser.getCurrentName().equals("pagingIdentifiers")
&& parser.nextToken() == JsonToken.START_OBJECT) {
JsonToken token = parser.nextToken();
while (parser.getCurrentToken() == JsonToken.FIELD_NAME) {
page.pagingIdentifier = parser.getCurrentName();
if (parser.nextToken() == JsonToken.VALUE_NUMBER_INT) {
page.offset = parser.getIntValue();
while (parser.nextToken() == JsonToken.FIELD_NAME) {
if (parser.getCurrentName().equals("pagingIdentifiers")
&& parser.nextToken() == JsonToken.START_OBJECT) {
JsonToken token = parser.nextToken();
while (parser.getCurrentToken() == JsonToken.FIELD_NAME) {
page.pagingIdentifier = parser.getCurrentName();
if (parser.nextToken() == JsonToken.VALUE_NUMBER_INT) {
page.offset = parser.getIntValue();
}
token = parser.nextToken();
}
token = parser.nextToken();
}
expect(token, JsonToken.END_OBJECT);
}
if (parser.nextToken() == JsonToken.FIELD_NAME
&& parser.getCurrentName().equals("events")
&& parser.nextToken() == JsonToken.START_ARRAY) {
while (parser.nextToken() == JsonToken.START_OBJECT) {
expectScalarField(parser, "segmentId");
expectScalarField(parser, "offset");
if (parser.nextToken() == JsonToken.FIELD_NAME
&& parser.getCurrentName().equals("event")
&& parser.nextToken() == JsonToken.START_OBJECT) {
parseFields(fieldNames, fieldTypes, posTimestampField, rowBuilder, parser);
sink.send(rowBuilder.build());
rowBuilder.reset();
page.totalRowCount += 1;
expect(token, JsonToken.END_OBJECT);
} else if (parser.getCurrentName().equals("events")
&& parser.nextToken() == JsonToken.START_ARRAY) {
while (parser.nextToken() == JsonToken.START_OBJECT) {
expectScalarField(parser, "segmentId");
expectScalarField(parser, "offset");
if (parser.nextToken() == JsonToken.FIELD_NAME
&& parser.getCurrentName().equals("event")
&& parser.nextToken() == JsonToken.START_OBJECT) {
parseFields(fieldNames, fieldTypes, posTimestampField, rowBuilder, parser);
sink.send(rowBuilder.build());
rowBuilder.reset();
page.totalRowCount += 1;
}
expect(parser, JsonToken.END_OBJECT);
}
parser.nextToken();
} else if (parser.getCurrentName().equals("dimensions")
|| parser.getCurrentName().equals("metrics")) {
expect(parser, JsonToken.START_ARRAY);
while (parser.nextToken() != JsonToken.END_ARRAY) {
// empty
}
expect(parser, JsonToken.END_OBJECT);
}
parser.nextToken();
}
}
}
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