Initial search service commit

[aai/search-data-service.git] / src / main / java / org / openecomp / sa / searchdbabstraction / util / AggregationParsingUtil.java

diff --git a/src/main/java/org/openecomp/sa/searchdbabstraction/util/AggregationParsingUtil.java b/src/main/java/org/openecomp/sa/searchdbabstraction/util/AggregationParsingUtil.java
new file mode 100644 (file)
index 0000000..38ff943
--- /dev/null
+++ b/src/main/java/org/openecomp/sa/searchdbabstraction/util/AggregationParsingUtil.java
@@ -0,0 +1,106 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Search Data Service
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * Licensed 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 ati
+ *
+ *    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.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP and OpenECOMP are trademarks
+ * and service marks of AT&T Intellectual Property.
+ */
+package org.openecomp.sa.searchdbabstraction.util;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+import org.openecomp.sa.searchdbabstraction.entity.AggregationBucket;
+import org.openecomp.sa.searchdbabstraction.entity.AggregationResult;
+
+import java.util.Iterator;
+import java.util.Set;
+
+public class AggregationParsingUtil {
+  public static AggregationResult[] parseAggregationResults(JSONObject aggregations)
+      throws JsonProcessingException {
+
+    // Obtain the set of aggregation names
+    Set keySet = aggregations.keySet();
+    AggregationResult[] aggResults = new AggregationResult[keySet.size()];
+
+    int index = 0;
+    for (Iterator it = keySet.iterator(); it.hasNext(); ) {
+      String key = (String) it.next();
+      AggregationResult aggResult = new AggregationResult();
+      aggResult.setName(key);
+
+      JSONObject bucketsOrNested = (JSONObject) aggregations.get(key);
+      Object buckets = bucketsOrNested.get("buckets");
+      if (buckets == null) {
+        // we have a nested
+        Number count = (Number) bucketsOrNested.remove("doc_count");
+        aggResult.setCount(count);
+        AggregationResult[] nestedResults = parseAggregationResults(bucketsOrNested);
+        aggResult.setNestedAggregations(nestedResults);
+      } else {
+        AggregationBucket[] aggBuckets = parseAggregationBuckets((JSONArray) buckets);
+        aggResult.setBuckets(aggBuckets);
+      }
+
+      aggResults[index] = aggResult;
+      index++;
+    }
+
+    return aggResults;
+
+  }
+
+  private static AggregationBucket[] parseAggregationBuckets(JSONArray buckets)
+      throws JsonProcessingException {
+    AggregationBucket[] aggBuckets = new AggregationBucket[buckets.size()];
+    for (int i = 0; i < buckets.size(); i++) {
+      AggregationBucket aggBucket = new AggregationBucket();
+      JSONObject bucketContent = (JSONObject) buckets.get(i);
+      Object key = bucketContent.remove("key");
+      aggBucket.setKey(key);
+      Object formatted = bucketContent.remove("key_as_string");
+      if (formatted != null) {
+        aggBucket.setFormattedKey((String) formatted);
+      }
+      Object count = bucketContent.remove("doc_count");
+      if (count != null) {
+        aggBucket.setCount((Number) count);
+      }
+      bucketContent.remove("from");
+      bucketContent.remove("from_as_string");
+      bucketContent.remove("to");
+      bucketContent.remove("to_as_string");
+
+
+      if (!bucketContent.entrySet().isEmpty()) {
+        // we have results from sub-aggregation
+        AggregationResult[] subResult = parseAggregationResults(bucketContent);
+        if (subResult != null) {
+          aggBucket.setSubAggregationResult(subResult);
+        }
+      }
+      aggBuckets[i] = aggBucket;
+    }
+
+    return aggBuckets;
+  }
+
+}