private IndexRequest prepareInsert(
DocTableInfo tableInfo, ShardUpsertRequest request, ShardUpsertRequest.Item item)
throws IOException {
List<GeneratedReferenceInfo> generatedReferencesWithValue = new ArrayList<>();
BytesReference source;
if (request.isRawSourceInsert()) {
assert item.insertValues().length > 0 : "empty insert values array";
source = new BytesArray((BytesRef) item.insertValues()[0]);
} else {
XContentBuilder builder = XContentFactory.jsonBuilder().startObject();
for (int i = 0; i < item.insertValues().length; i++) {
Reference ref = request.insertColumns()[i];
if (ref.info().granularity() == RowGranularity.DOC) {
// don't include values for partitions in the _source
// ideally columns with partition granularity shouldn't be part of the request
builder.field(ref.ident().columnIdent().fqn(), item.insertValues()[i]);
if (ref.info() instanceof GeneratedReferenceInfo) {
generatedReferencesWithValue.add((GeneratedReferenceInfo) ref.info());
}
}
}
source = builder.bytes();
}
int generatedColumnSize = 0;
for (GeneratedReferenceInfo generatedReferenceInfo : tableInfo.generatedColumns()) {
if (!tableInfo.partitionedByColumns().contains(generatedReferenceInfo)) {
generatedColumnSize++;
}
}
int numMissingGeneratedColumns = generatedColumnSize - generatedReferencesWithValue.size();
if (numMissingGeneratedColumns > 0
|| (generatedReferencesWithValue.size() > 0 && request.validateGeneratedColumns())) {
// we need to evaluate some generated column expressions
Map<String, Object> sourceMap =
processGeneratedColumnsOnInsert(
tableInfo,
request.insertColumns(),
item.insertValues(),
request.isRawSourceInsert(),
request.validateGeneratedColumns());
source = XContentFactory.jsonBuilder().map(sourceMap).bytes();
}
IndexRequest indexRequest =
Requests.indexRequest(request.index())
.type(request.type())
.id(item.id())
.routing(request.routing())
.source(source)
.create(!request.overwriteDuplicates())
.operationThreaded(false);
if (logger.isTraceEnabled()) {
logger.trace(
"Inserting document with id {}, source: {}", item.id(), indexRequest.source().toUtf8());
}
return indexRequest;
}
private void processGeneratedColumns(
final DocTableInfo tableInfo,
Map<String, Object> updatedColumns,
Map<String, Object> updatedGeneratedColumns,
boolean validateExpressionValue,
@Nullable GetResult getResult) {
SymbolToFieldExtractorContext ctx =
new SymbolToFieldExtractorContext(functions, updatedColumns);
for (GeneratedReferenceInfo referenceInfo : tableInfo.generatedColumns()) {
// partitionedBy columns cannot be updated
if (!tableInfo.partitionedByColumns().contains(referenceInfo)) {
Object givenValue = updatedGeneratedColumns.get(referenceInfo.ident().columnIdent().fqn());
if ((givenValue != null && validateExpressionValue)
|| generatedExpressionEvaluationNeeded(
referenceInfo.referencedReferenceInfos(), updatedColumns.keySet())) {
// at least one referenced column was updated, need to evaluate expression and update
// column
FieldExtractor<GetResult> extractor =
SYMBOL_TO_FIELD_EXTRACTOR.convert(referenceInfo.generatedExpression(), ctx);
Object value = extractor.extract(getResult);
if (givenValue == null) {
// add column & value
updatedColumns.put(referenceInfo.ident().columnIdent().fqn(), value);
} else if (validateExpressionValue && !givenValue.equals(value)) {
throw new IllegalArgumentException(
String.format(
Locale.ENGLISH,
"Given value %s for generated column does not match defined generated expression value %s",
givenValue,
value));
}
}
}
}
}