Add parsing for InternalAdjacencyMatrix aggregation (#24700)

1 files changed, 88 insertions, 0 deletions

diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/bucket/adjacency/ParsedAdjacencyMatrix.java b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/adjacency/ParsedAdjacencyMatrix.java
new file mode 100644
index 0000000000..1fb356d45c
--- /dev/null
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/bucket/adjacency/ParsedAdjacencyMatrix.java
@@ -0,0 +1,88 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch 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.elasticsearch.search.aggregations.bucket.adjacency;
+
+import org.elasticsearch.common.xcontent.ObjectParser;
+import org.elasticsearch.common.xcontent.XContentParser;
+import org.elasticsearch.search.aggregations.ParsedMultiBucketAggregation;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class ParsedAdjacencyMatrix extends ParsedMultiBucketAggregation<ParsedAdjacencyMatrix.ParsedBucket> implements AdjacencyMatrix {
+
+    private Map<String, ParsedBucket> bucketMap;
+
+    @Override
+    public String getType() {
+        return AdjacencyMatrixAggregationBuilder.NAME;
+    }
+
+    @Override
+    public List<? extends AdjacencyMatrix.Bucket> getBuckets() {
+        return buckets;
+    }
+
+    @Override
+    public ParsedBucket getBucketByKey(String key) {
+        if (bucketMap == null) {
+            bucketMap = new HashMap<>(buckets.size());
+            for (ParsedBucket bucket : buckets) {
+                bucketMap.put(bucket.getKey(), bucket);
+            }
+        }
+        return bucketMap.get(key);
+    }
+
+    private static ObjectParser<ParsedAdjacencyMatrix, Void> PARSER =
+            new ObjectParser<>(ParsedAdjacencyMatrix.class.getSimpleName(), true, ParsedAdjacencyMatrix::new);
+    static {
+        declareMultiBucketAggregationFields(PARSER,
+                parser -> ParsedBucket.fromXContent(parser),
+                parser -> ParsedBucket.fromXContent(parser));
+    }
+
+    public static ParsedAdjacencyMatrix fromXContent(XContentParser parser, String name) throws IOException {
+        ParsedAdjacencyMatrix aggregation = PARSER.parse(parser, null);
+        aggregation.setName(name);
+        return aggregation;
+    }
+
+    public static class ParsedBucket extends ParsedMultiBucketAggregation.ParsedBucket implements AdjacencyMatrix.Bucket {
+
+        private String key;
+
+        @Override
+        public String getKey() {
+            return key;
+        }
+
+        @Override
+        public String getKeyAsString() {
+            return key;
+        }
+
+        static ParsedBucket fromXContent(XContentParser parser) throws IOException {
+            return parseXContent(parser, false, ParsedBucket::new, (p, bucket) -> bucket.key = p.text());
+        }
+    }
+}