@Override
protected Aggregator doCreateInternal(
ValuesSource valuesSource,
AggregationContext context,
Aggregator parent,
boolean collectsFromSingleBucket,
List<PipelineAggregator> pipelineAggregators,
Map<String, Object> metaData)
throws IOException {
if (valuesSource instanceof ValuesSource.Numeric) {
return new DiversifiedNumericSamplerAggregator(
name,
shardSize,
factories,
context,
parent,
pipelineAggregators,
metaData,
(Numeric) valuesSource,
maxDocsPerValue);
}
if (valuesSource instanceof ValuesSource.Bytes) {
ExecutionMode execution = null;
if (executionHint != null) {
execution =
ExecutionMode.fromString(executionHint, context.searchContext().parseFieldMatcher());
}
// In some cases using ordinals is just not supported: override
// it
if (execution == null) {
execution = ExecutionMode.GLOBAL_ORDINALS;
}
if ((execution.needsGlobalOrdinals())
&& (!(valuesSource instanceof ValuesSource.Bytes.WithOrdinals))) {
execution = ExecutionMode.MAP;
}
return execution.create(
name,
factories,
shardSize,
maxDocsPerValue,
valuesSource,
context,
parent,
pipelineAggregators,
metaData);
}
throw new AggregationExecutionException(
"Sampler aggregation cannot be applied to field ["
+ config.fieldContext().field()
+ "]. It can only be applied to numeric or string fields.");
}
@Override
protected Aggregator doCreateInternal(
ValuesSource valuesSource,
AggregationContext aggregationContext,
Aggregator parent,
boolean collectsFromSingleBucket,
List<PipelineAggregator> pipelineAggregators,
Map<String, Object> metaData)
throws IOException {
if (collectsFromSingleBucket == false) {
return asMultiBucketAggregator(this, aggregationContext, parent);
}
numberOfAggregatorsCreated++;
if (valuesSource instanceof ValuesSource.Bytes) {
ExecutionMode execution = null;
if (executionHint != null) {
execution =
ExecutionMode.fromString(
executionHint, aggregationContext.searchContext().parseFieldMatcher());
}
if (!(valuesSource instanceof ValuesSource.Bytes.WithOrdinals)) {
execution = ExecutionMode.MAP;
}
if (execution == null) {
if (Aggregator.descendsFromBucketAggregator(parent)) {
execution = ExecutionMode.GLOBAL_ORDINALS_HASH;
} else {
execution = ExecutionMode.GLOBAL_ORDINALS;
}
}
assert execution != null;
return execution.create(
name,
factories,
valuesSource,
bucketCountThresholds,
includeExclude,
aggregationContext,
parent,
this,
pipelineAggregators,
metaData);
}
if ((includeExclude != null) && (includeExclude.isRegexBased())) {
throw new AggregationExecutionException(
"Aggregation ["
+ name
+ "] cannot support regular expression style include/exclude "
+ "settings as they can only be applied to string fields. Use an array of numeric values for include/exclude clauses used to filter numeric fields");
}
if (valuesSource instanceof ValuesSource.Numeric) {
if (((ValuesSource.Numeric) valuesSource).isFloatingPoint()) {
throw new UnsupportedOperationException("No support for examining floating point numerics");
}
IncludeExclude.LongFilter longFilter = null;
if (includeExclude != null) {
longFilter = includeExclude.convertToLongFilter();
}
return new SignificantLongTermsAggregator(
name,
factories,
(ValuesSource.Numeric) valuesSource,
config.format(),
bucketCountThresholds,
aggregationContext,
parent,
this,
longFilter,
pipelineAggregators,
metaData);
}
throw new AggregationExecutionException(
"sigfnificant_terms aggregation cannot be applied to field ["
+ config.fieldContext().field()
+ "]. It can only be applied to numeric or string fields.");
}
