org.elasticsearch.index.fielddata.plain.DisabledIndexFieldData Maven / Gradle / Ivy
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.index.fielddata.plain;
import org.apache.lucene.index.AtomicReaderContext;
import org.elasticsearch.ElasticsearchIllegalStateException;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.fielddata.*;
import org.elasticsearch.index.fielddata.IndexFieldData.XFieldComparatorSource.Nested;
import org.elasticsearch.index.mapper.FieldMapper;
import org.elasticsearch.index.mapper.FieldMapper.Names;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.settings.IndexSettings;
import org.elasticsearch.search.MultiValueMode;
import org.elasticsearch.indices.breaker.CircuitBreakerService;
/**
* A field data implementation that forbids loading and will throw an {@link org.elasticsearch.ElasticsearchIllegalStateException} if you try to load
* {@link AtomicFieldData} instances.
*/
public final class DisabledIndexFieldData extends AbstractIndexFieldData {
public static class Builder implements IndexFieldData.Builder {
@Override
public IndexFieldData build(Index index, @IndexSettings Settings indexSettings, FieldMapper mapper,
IndexFieldDataCache cache, CircuitBreakerService breakerService, MapperService mapperService) {
// Ignore Circuit Breaker
return new DisabledIndexFieldData(index, indexSettings, mapper.names(), mapper.fieldDataType(), cache);
}
}
public DisabledIndexFieldData(Index index, Settings indexSettings, Names fieldNames, FieldDataType fieldDataType, IndexFieldDataCache cache) {
super(index, indexSettings, fieldNames, fieldDataType, cache);
}
@Override
public AtomicFieldData loadDirect(AtomicReaderContext context) throws Exception {
throw fail();
}
@Override
public IndexFieldData.XFieldComparatorSource comparatorSource(Object missingValue, MultiValueMode sortMode, Nested nested) {
throw fail();
}
private ElasticsearchIllegalStateException fail() {
return new ElasticsearchIllegalStateException("Field data loading is forbidden on " + getFieldNames().name());
}
}