2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 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 package org.onap.aai.champcore;
23 import com.att.eelf.configuration.EELFLogger;
24 import com.att.eelf.configuration.EELFManager;
25 import com.google.gson.JsonArray;
26 import com.google.gson.JsonElement;
27 import com.google.gson.JsonObject;
28 import com.google.gson.JsonParser;
29 import java.util.List;
30 import java.util.Optional;
31 import java.util.stream.Stream;
33 public class Formatter {
35 private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(Formatter.class);
36 protected JsonParser parser = new JsonParser();
37 protected final FormatMapper format;
39 public Formatter(FormatMapper format) {
43 public JsonObject output(List<Object> vertices) {
44 Stream<Object> stream = null;
45 JsonObject result = new JsonObject();
46 JsonArray body = new JsonArray();
47 if (vertices.size() >= this.format.parallelThreshold()) {
48 stream = vertices.parallelStream();
50 stream = vertices.stream();
53 boolean isParallel = stream.isParallel();
56 return Optional.of(this.format.formatObject(v));
57 } catch (Exception var3) {
58 LOGGER.warn("Failed to format vertex, returning a partial list", var3);
59 return Optional.empty();
62 if (obj.isPresent()) {
65 body.add((JsonElement)obj.get());
68 body.add((JsonElement)obj.get());
73 result.add("results", body);
74 return result.getAsJsonObject();