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las-sink: handle nullable columns #108

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merged 1 commit into from
Aug 15, 2024
Merged

las-sink: handle nullable columns #108

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50 changes: 44 additions & 6 deletions sink-las/app/src/main/java/sink/LasSinkTask.java
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,49 @@ void handle(SinkRecordBatch batch) {
session.commit(List.of(0L), List.of(recordWriter.getAttemptId()));
}

void putValue(GenericData.Record record, Schema schema, String field, Object value) {
Schema valueSchema = schema.getField(field).schema();
switch (valueSchema.getType()) {
case INT:
int intValue = (int) value;
record.put(field, intValue);
break;
case LONG:
long longValue = (long) value;
record.put(field, longValue);
break;
case FLOAT:
float floatValue = (float) value;
record.put(field, floatValue);
break;
case DOUBLE:
double doubleValue = (double) value;
record.put(field, doubleValue);
case UNION:
// by default, a field in LAS table is nullable, ant its schema is a union like [type, null].
List<Schema> unionTypes = valueSchema.getTypes();
if(unionTypes.stream().anyMatch(it -> it.getType().equals(Schema.Type.INT))) {
int unionIntValue = (int) value;
record.put(field, unionIntValue);
break;
} else if (unionTypes.stream().anyMatch(it -> it.getType().equals(Schema.Type.LONG))) {
long unionLongValue = (long) value;
record.put(field, unionLongValue);
break;
} else if (unionTypes.stream().anyMatch(it -> it.getType().equals(Schema.Type.FLOAT))) {
float unionFloatValue = (float) value;
record.put(field, unionFloatValue);
break;
} else if (unionTypes.stream().anyMatch(it -> it.getType().equals(Schema.Type.DOUBLE))) {
double unionDoubleValue = (double) value;
record.put(field, unionDoubleValue);
break;
}
default:
record.put(field, value);

}
}
GenericData.Record convertRecord(SinkRecord sinkRecord) {
try {
var lasRecord = LasRecord.fromSinkRecord(sinkRecord);
Expand All @@ -114,12 +157,7 @@ GenericData.Record convertRecord(SinkRecord sinkRecord) {
var r = new GenericData.Record(schema);
for (var entry : valueRecord.entrySet()) {
var value = entry.getValue();
if (schema.getField(entry.getKey()).schema().getType().equals(Schema.Type.INT)) {
var intValue = (int) value;
r.put(entry.getKey(), intValue);
} else {
r.put(entry.getKey(), value);
}
putValue(r, schema, entry.getKey(), value);
}
return r;
} catch (Exception e) {
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