2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
23 package org.openecomp.sa.searchdbabstraction.util;
25 import com.fasterxml.jackson.core.JsonProcessingException;
26 import org.json.simple.JSONArray;
27 import org.json.simple.JSONObject;
28 import org.openecomp.sa.searchdbabstraction.entity.AggregationBucket;
29 import org.openecomp.sa.searchdbabstraction.entity.AggregationResult;
31 import java.util.Iterator;
34 public class AggregationParsingUtil {
35 public static AggregationResult[] parseAggregationResults(JSONObject aggregations)
36 throws JsonProcessingException {
38 // Obtain the set of aggregation names
39 Set keySet = aggregations.keySet();
40 AggregationResult[] aggResults = new AggregationResult[keySet.size()];
43 for (Iterator it = keySet.iterator(); it.hasNext(); ) {
44 String key = (String) it.next();
45 AggregationResult aggResult = new AggregationResult();
46 aggResult.setName(key);
48 JSONObject bucketsOrNested = (JSONObject) aggregations.get(key);
49 Object buckets = bucketsOrNested.get("buckets");
50 if (buckets == null) {
52 Number count = (Number) bucketsOrNested.remove("doc_count");
53 aggResult.setCount(count);
54 AggregationResult[] nestedResults = parseAggregationResults(bucketsOrNested);
55 aggResult.setNestedAggregations(nestedResults);
57 AggregationBucket[] aggBuckets = parseAggregationBuckets((JSONArray) buckets);
58 aggResult.setBuckets(aggBuckets);
61 aggResults[index] = aggResult;
69 private static AggregationBucket[] parseAggregationBuckets(JSONArray buckets)
70 throws JsonProcessingException {
71 AggregationBucket[] aggBuckets = new AggregationBucket[buckets.size()];
72 for (int i = 0; i < buckets.size(); i++) {
73 AggregationBucket aggBucket = new AggregationBucket();
74 JSONObject bucketContent = (JSONObject) buckets.get(i);
75 Object key = bucketContent.remove("key");
76 aggBucket.setKey(key);
77 Object formatted = bucketContent.remove("key_as_string");
78 if (formatted != null) {
79 aggBucket.setFormattedKey((String) formatted);
81 Object count = bucketContent.remove("doc_count");
83 aggBucket.setCount((Number) count);
85 bucketContent.remove("from");
86 bucketContent.remove("from_as_string");
87 bucketContent.remove("to");
88 bucketContent.remove("to_as_string");
91 if (!bucketContent.entrySet().isEmpty()) {
92 // we have results from sub-aggregation
93 AggregationResult[] subResult = parseAggregationResults(bucketContent);
94 if (subResult != null) {
95 aggBucket.setSubAggregationResult(subResult);
98 aggBuckets[i] = aggBucket;