| /* |
| * 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 org.apache.solr.schema.SchemaField; |
| |
| public abstract class UniqueBlockAgg extends UniqueAgg { |
| |
| protected static class UniqueBlockSlotAcc extends UniqueSinglevaluedSlotAcc { |
| |
| protected int[] lastSeenValuesPerSlot; |
| |
| protected UniqueBlockSlotAcc(FacetContext fcontext, SchemaField field, int numSlots) |
| throws IOException { // |
| super(fcontext, field, /*numSlots suppressing inherited accumulator */0, null); |
| counts = new int[numSlots]; |
| lastSeenValuesPerSlot = new int[numSlots]; |
| Arrays.fill(lastSeenValuesPerSlot, Integer.MIN_VALUE); |
| } |
| |
| @Override |
| protected void collectOrdToSlot(int slotNum, int ord) { |
| if (lastSeenValuesPerSlot[slotNum]!=ord) { |
| counts[slotNum]+=1; |
| lastSeenValuesPerSlot[slotNum] = ord; |
| } |
| } |
| |
| @Override |
| public void calcCounts() { |
| // noop already done |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| Arrays.fill(counts, 0); |
| Arrays.fill(lastSeenValuesPerSlot, Integer.MIN_VALUE); |
| } |
| |
| @Override |
| public void resize(Resizer resizer) { |
| lastSeenValuesPerSlot = resizer.resize(lastSeenValuesPerSlot, Integer.MIN_VALUE); |
| super.resize(resizer); |
| } |
| |
| @Override |
| public Object getValue(int slot) throws IOException { |
| return counts[slot]; |
| } |
| } |
| |
| private final static String uniqueBlock = "uniqueBlock"; |
| |
| public UniqueBlockAgg(String field) { |
| super(field); |
| name = uniqueBlock; |
| } |
| |
| @Override |
| public abstract SlotAcc createSlotAcc(FacetContext fcontext, int numDocs, int numSlots) throws IOException ; |
| |
| @Override |
| public FacetMerger createFacetMerger(Object prototype) { |
| return new FacetModule.FacetLongMerger() ; |
| } |
| } |