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.sa.searchdbabstraction.util;
24 import java.io.FileInputStream;
25 import java.io.IOException;
27 import org.apache.commons.io.IOUtils;
28 import org.json.JSONArray;
29 import org.json.JSONObject;
30 import org.onap.aai.cl.api.Logger;
31 import org.onap.aai.cl.eelf.LoggerFactory;
32 import org.onap.aai.sa.searchdbabstraction.logging.SearchDbMsgs;
36 * This class as the name suggests is to translate the payload of PUT & POST requests
37 * to ElasticSearch (ES) to its compatible syntax, specially compatible with ES v6 or above.
39 * For example, data type such as "string" is now replaced by "text" or "keyword".
41 * So this class will make those translations reading off from a json configuration file, therefore
42 * the configuration can be updated with new translations as and when required without touching the code.
47 public class ElasticSearchPayloadTranslator {
49 private static Logger logger = LoggerFactory.getInstance().getLogger(ElasticSearchPayloadTranslator.class.getName());
50 private static final String CONFIG_DIRECTORY = System.getProperty("CONFIG_HOME");
51 private static final String ES_PAYLOAD_TRANSLATION_FILE = "es-payload-translation.json";
55 * Using String replacement to translate the payload to ES compatible version
58 * @return translated payload in String
61 public static String translateESPayload(String source) throws IOException {
62 logger.info(SearchDbMsgs.PROCESS_PAYLOAD_QUERY, "translateESPayload, method-params[ source=" + source + "]");
63 String pathToTranslationFile = CONFIG_DIRECTORY + File.separator + ES_PAYLOAD_TRANSLATION_FILE;
65 String translatedPayload = source.replaceAll("\\s+", ""); // removing whitespaces
66 JSONObject translationConfigPayload = new JSONObject(IOUtils.toString(
67 new FileInputStream(new File(pathToTranslationFile)), "UTF-8"));
69 JSONArray attrTranslations = translationConfigPayload.getJSONArray("attr-translations");
71 for(Object obj : attrTranslations) {
72 JSONObject jsonObj = ((JSONObject)obj);
73 String from = jsonObj.get("from").toString();
74 String to = jsonObj.get("to").toString();
75 if(translatedPayload.indexOf(from) > 0) {
76 translatedPayload = translatedPayload.replaceAll(from, to);
80 logger.info(SearchDbMsgs.PROCESS_PAYLOAD_QUERY, "Payload after translation: "+translatedPayload);
81 return translatedPayload;