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ignore unknown druid aggregators #259

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ignore unknown druid aggregators #259

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23 changes: 22 additions & 1 deletion druid/src/main/java/org/apache/calcite/adapter/druid/DruidConnectionImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.CollectionType;

Expand Down Expand Up @@ -341,6 +342,19 @@ public void run() {
};
}

private boolean supportedType(String type) {
if (type.startsWith("long")) {
return true;
}
if (type.startsWith("double")) {
return true;
}
if (type.equals("hyperUnique")) {
return true;
}
return false;
}

/** Reads segment metadata, and populates a list of columns and metrics. */
void metadata(String dataSourceName, List<String> intervals,
Map<String, SqlTypeName> fieldBuilder, Set<String> metricNameBuilder) {
Expand All @@ -353,19 +367,26 @@ void metadata(String dataSourceName, List<String> intervals,
}
try (InputStream in0 = post(url, data, requestHeaders, 10000, 1800000);
InputStream in = traceResponse(in0)) {
final ObjectMapper mapper = new ObjectMapper();
final ObjectMapper mapper = new ObjectMapper().configure(
DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
final CollectionType listType =
mapper.getTypeFactory().constructCollectionType(List.class,
JsonSegmentMetadata.class);
final List<JsonSegmentMetadata> list = mapper.readValue(in, listType);
in.close();
for (JsonSegmentMetadata o : list) {
for (Map.Entry<String, JsonColumn> entry : o.columns.entrySet()) {
if (!supportedType(entry.getValue().type)) {
continue;
}
fieldBuilder.put(entry.getKey(), entry.getValue().sqlType());
}
if (o.aggregators != null) {
for (Map.Entry<String, JsonAggregator> entry
: o.aggregators.entrySet()) {
if (!supportedType(entry.getValue().type)) {
continue;
}
fieldBuilder.put(entry.getKey(), entry.getValue().sqlType());
metricNameBuilder.add(entry.getKey());
}
Expand Down