| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.solr.search.facet; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.function.IntFunction; |
| |
| import org.apache.lucene.index.SortedSetDocValues; |
| import org.apache.lucene.queries.function.ValueSource; |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.schema.SchemaField; |
| import org.apache.solr.search.function.FieldNameValueSource; |
| |
| /** |
| * {@link AggValueSource} to count values for given {@link ValueSource} |
| */ |
| public class CountValsAgg extends SimpleAggValueSource { |
| |
| public CountValsAgg(ValueSource vs) { |
| super("countvals", vs); |
| } |
| |
| @Override |
| public SlotAcc createSlotAcc(FacetContext fcontext, int numDocs, int numSlots) throws IOException { |
| ValueSource vs = getArg(); |
| if (vs instanceof FieldNameValueSource) { |
| String field = ((FieldNameValueSource)vs).getFieldName(); |
| SchemaField sf = fcontext.qcontext.searcher().getSchema().getField(field); |
| if (sf.multiValued() || sf.getType().multiValuedFieldCache()) { |
| if (sf.hasDocValues()) { |
| if (sf.getType().isPointField()) { |
| return new CountSortedNumericDVAcc(fcontext, sf, numSlots); |
| } |
| return new CountSortedSetDVAcc(fcontext, sf, numSlots); |
| } |
| if (sf.getType().isPointField()) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, |
| "'countvals' aggregation not supported for PointField without docValues"); |
| } |
| return new CountMultiValuedAcc(fcontext, sf, numSlots); |
| } else { |
| vs = sf.getType().getValueSource(sf, null); |
| } |
| } |
| return new CountValSlotAcc(vs, fcontext, numSlots); |
| } |
| |
| |
| @Override |
| public FacetMerger createFacetMerger(Object prototype) { |
| return new FacetModule.FacetLongMerger(); |
| } |
| |
| class CountValSlotAcc extends SlotAcc.LongFuncSlotAcc { |
| |
| public CountValSlotAcc(ValueSource values, FacetContext fcontext, int numSlots) { |
| super(values, fcontext, numSlots, 0); |
| } |
| |
| @Override |
| public void collect(int doc, int slot, IntFunction<SlotContext> slotContext) throws IOException { |
| if (values.exists(doc)) { |
| result[slot]++; |
| } |
| } |
| } |
| |
| class CountSortedNumericDVAcc extends DocValuesAcc.LongSortedNumericDVAcc { |
| |
| public CountSortedNumericDVAcc(FacetContext fcontext, SchemaField sf, int numSlots) throws IOException { |
| super(fcontext, sf, numSlots, 0); |
| } |
| |
| @Override |
| protected void collectValues(int doc, int slot) throws IOException { |
| result[slot]+=values.docValueCount(); |
| } |
| } |
| |
| class CountSortedSetDVAcc extends DocValuesAcc.LongSortedSetDVAcc { |
| |
| public CountSortedSetDVAcc(FacetContext fcontext, SchemaField sf, int numSlots) throws IOException { |
| super(fcontext, sf, numSlots, 0); |
| } |
| |
| @Override |
| protected void collectValues(int doc, int slot) throws IOException { |
| while (values.nextOrd() != SortedSetDocValues.NO_MORE_ORDS) { |
| result[slot]++; |
| } |
| } |
| } |
| |
| class CountMultiValuedAcc extends UnInvertedFieldAcc { |
| private int currentSlot; |
| long[] result; |
| |
| public CountMultiValuedAcc(FacetContext fcontext, SchemaField sf, int numSlots) throws IOException { |
| super(fcontext, sf, numSlots); |
| result = new long[numSlots]; |
| } |
| |
| @Override |
| public void collect(int doc, int slot, IntFunction<SlotContext> slotContext) throws IOException { |
| this.currentSlot = slot; |
| docToTerm.getBigTerms(doc + currentDocBase, this); |
| docToTerm.getSmallTerms(doc + currentDocBase, this); |
| } |
| |
| @Override |
| public int compare(int slotA, int slotB) { |
| return Long.compare(result[slotA], result[slotB]); |
| } |
| |
| @Override |
| public Object getValue(int slotNum) throws IOException { |
| return result[slotNum]; |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| Arrays.fill(result, 0); |
| } |
| |
| @Override |
| public void resize(Resizer resizer) { |
| this.result = resizer.resize(result, 0); |
| } |
| |
| @Override |
| public void call(int termNum) { |
| result[currentSlot]++; |
| } |
| } |
| } |