| /* |
| * 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.client.solrj.response.json; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.solr.common.util.NamedList; |
| |
| /** |
| * Represents the top-level response for a bucket-based JSON facet (i.e. "terms" or "range") |
| * |
| * Allows access to JSON like: |
| * <pre> |
| * { |
| * "numBuckets": 2, |
| * "buckets": [ |
| * {...}, |
| * {...} |
| * ] |
| * } |
| * </pre> |
| * <p> |
| * Allows access to all top-level "terms" and "range" response properties (e.g. {@code allBuckets}, {@code numBuckets}, |
| * {@code before}, etc.) |
| */ |
| public class BucketBasedJsonFacet { |
| public static final int UNSET_FLAG = -1; |
| private List<BucketJsonFacet> buckets; |
| private long numBuckets = UNSET_FLAG; |
| private long allBuckets = UNSET_FLAG; |
| private long beforeFirstBucketCount = UNSET_FLAG; |
| private long afterLastBucketCount = UNSET_FLAG; |
| private long betweenAllBucketsCount = UNSET_FLAG; |
| |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| public BucketBasedJsonFacet(NamedList<Object> bucketBasedFacet) { |
| for (Map.Entry<String, Object> entry : bucketBasedFacet) { |
| final String key = entry.getKey(); |
| final Object value = entry.getValue(); |
| if ("buckets".equals(key)) { |
| final List<NamedList> bucketListUnparsed = (List<NamedList>) value; |
| buckets = new ArrayList<>(); |
| for (NamedList bucket : bucketListUnparsed) { |
| buckets.add(new BucketJsonFacet(bucket)); |
| } |
| } else if ("numBuckets".equals(key)) { |
| numBuckets = ((Number) value).longValue(); |
| } else if ("allBuckets".equals(key)) { |
| allBuckets = ((Number) ((NamedList)value).get("count")).longValue(); |
| } else if ("before".equals(key)) { |
| beforeFirstBucketCount = ((Number) ((NamedList)value).get("count")).longValue(); |
| } else if ("after".equals(key)) { |
| afterLastBucketCount = ((Number) ((NamedList)value).get("count")).longValue(); |
| } else if ("between".equals(key)) { |
| betweenAllBucketsCount = ((Number) ((NamedList)value).get("count")).longValue(); |
| } else { |
| // We don't recognize the key. Possible JSON faceting schema has changed without updating client. |
| // Silently ignore for now, though we may want to consider throwing an error if this proves problematic. |
| } |
| } |
| } |
| |
| /** |
| * Retrieves the facet buckets returned by the server. |
| */ |
| public List<BucketJsonFacet> getBuckets() { |
| return buckets; |
| } |
| |
| /** |
| * The total number of buckets found in the domain (of which the returned buckets are only a part). |
| * |
| * This value can only be computed on "terms" facets where the user has specifically requested it with the |
| * {@code numBuckets} option. {@link #UNSET_FLAG} is returned if this is a "range" facet or {@code numBuckets} |
| * computation was not requested in the intiial request. |
| * |
| * @deprecated this method can trigger ClassCastException's if the returned value is a long. In the future it will |
| * return a 'long' instead to avoid this problem. Until then, use {@link #getNumBucketsCount()} instead. |
| */ |
| public int getNumBuckets() { |
| return (int) numBuckets; |
| } |
| |
| /** |
| * The total number of buckets found in the domain (of which the returned buckets are only a part). |
| * |
| * This value can only be computed on "terms" facets where the user has specifically requested it with the |
| * {@code numBuckets} option. {@link #UNSET_FLAG} is returned if this is a "range" facet or {@code numBuckets} |
| * computation was not requested in the intiial request. |
| */ |
| public long getNumBucketsCount() { |
| return numBuckets; |
| } |
| |
| /** |
| * The sum cardinality of all buckets in the "terms" facet. |
| * |
| * Note that for facets on multi-valued fields, documents may belong to multiple buckets, making {@link #getAllBuckets()} |
| * return a result greater than the number of documents in the domain. |
| * <p> |
| * This value is only present if the user has specifically requested it with the {@code allBuckets} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| */ |
| public long getAllBuckets() { |
| return allBuckets; |
| } |
| |
| /** |
| * The count of all records whose field value precedes the {@code start} of this "range" facet |
| * |
| * This value is only present if the user has specifically requested it with the {@code other} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| * |
| * @deprecated this method can trigger ClassCastException's if the returned value is a long. In the future it will |
| * return a 'long' instead to avoid this problem. Until then, use {@link #getBeforeCount()} instead. |
| */ |
| public int getBefore() { |
| return (int) beforeFirstBucketCount; |
| } |
| |
| /** |
| * The count of all records whose field value precedes the {@code start} of this "range" facet |
| * |
| * This value is only present if the user has specifically requested it with the {@code other} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| */ |
| public long getBeforeCount() { return beforeFirstBucketCount; } |
| |
| /** |
| * The count of all records whose field value follows the {@code end} of this "range" facet |
| * |
| * This value is only present if the user has specifically requested it with the {@code other} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| * |
| * @deprecated this method can trigger ClassCastException's if the returned value is a long. In the future it will |
| * return a 'long' instead to avoid this problem. Until then, use {@link #getAfterCount()} instead. |
| */ |
| public int getAfter() { |
| return (int) afterLastBucketCount; |
| } |
| |
| /** |
| * The count of all records whose field value follows the {@code end} of this "range" facet |
| * |
| * This value is only present if the user has specifically requested it with the {@code other} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| */ |
| public long getAfterCount() { |
| return afterLastBucketCount; |
| } |
| |
| /** |
| * The count of all records whose field value falls between {@code start} and {@code end}. |
| * |
| * This value is only present if the user has specifically requested it with the {@code other} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| * |
| * @deprecated this method can trigger ClassCastException's if the returned value is a long. In the future it will |
| * return a 'long' instead to avoid this problem. Until then, use {@link #getBetweenCount()} instead. |
| */ |
| public int getBetween() { |
| return (int) betweenAllBucketsCount; |
| } |
| |
| /** |
| * The count of all records whose field value falls between {@code start} and {@code end}. |
| * |
| * This value is only present if the user has specifically requested it with the {@code other} option. |
| * {@link #UNSET_FLAG} is returned if this is not the case. |
| */ |
| public long getBetweenCount() { |
| return betweenAllBucketsCount; |
| } |
| } |