2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.onap.sdnc.dg.loader;
28 import java.util.ArrayList;
29 import java.util.List;
30 import javax.script.Invocable;
31 import javax.script.ScriptEngine;
32 import javax.script.ScriptEngineManager;
33 import org.apache.commons.io.FileUtils;
34 import org.apache.commons.io.IOUtils;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
39 public class DGXMLGenerator {
40 private final static Logger logger = LoggerFactory.getLogger(DGXMLGenerator.class);
42 public static String STRING_ENCODING = "utf-8";
43 public static String JS_INTERFACE_DG_CONVERTOR = "dgconverter";
44 public static String JS_METHOD_GET_NODE_TO_XML = "getNodeToXml";
45 public static String GENERATOR_TEMPLATE_FILE = "js/dg_xml2json.js";
47 public void generateXMLFromJSON(String jsonPath, String xmlpath, String propertyPath)
50 ScriptEngineManager manager = new ScriptEngineManager();
51 ScriptEngine engine = manager.getEngineByName("JavaScript");
52 if (!(engine instanceof Invocable)) {
53 logger.error("Invoking methods is not supported.");
56 Invocable inv = (Invocable) engine;
58 // FileReader(DGXMLGenerator.class.getClassLoader().getResource(GENERATOR_TEMPLATE_FILE).getPath()));
59 String js = IOUtils.toString(DGXMLGenerator.class.getClassLoader()
60 .getResourceAsStream(GENERATOR_TEMPLATE_FILE), STRING_ENCODING);
63 Object dgconverter = engine.get(JS_INTERFACE_DG_CONVERTOR);
65 List<File> files = new ArrayList<File>();
66 if (dgconverter != null) {
67 File jsonPathFile = new File(jsonPath);
68 if (jsonPathFile.isDirectory()) {
69 String[] extensions = new String[] {"json", "JSON"};
70 files = (List<File>) FileUtils.listFiles(jsonPathFile, extensions, true);
71 } else if (jsonPathFile.isFile()) {
72 files.add(jsonPathFile);
74 throw new Exception("Failed to get the nature of the JSON path :" + jsonPath);
77 logger.info("JSON Files identified " + files.size());
79 if (files.size() > 0) {
80 boolean isXmlPathDeleted = FileUtils.deleteQuietly(new File(xmlpath));
81 logger.info("Cleaning old DG XML under : " + xmlpath + ", delete status :"
84 for (File file : files) {
85 String dgJson = FileUtils.readFileToString(file, STRING_ENCODING);
86 logger.info("Generating XML from :" + file.getName());
88 xmlpath + "/" + file.getName().replace(".json", ".xml");
91 inv.invokeMethod(dgconverter, JS_METHOD_GET_NODE_TO_XML, dgJson);
94 File xmlFile = new File(xmlFileName);
95 FileUtils.writeStringToFile(xmlFile, dgXMl.toString(), STRING_ENCODING);
96 logger.info("Generated XML File under :" + xmlFile.getCanonicalPath());
101 logger.info("No JSON Files to generate XML");
104 logger.error("Couldn't get Java Script Engine..");
106 } catch (Exception e) {
107 logger.error("Failed to generate generateXMLFromJSON :" + e.getMessage());
112 public static void main(String[] args) {
114 DGXMLGenerator application = new DGXMLGenerator();
115 String jsonPath = null;
116 String xmlPath = null;
117 String propertyPath = null;
118 // Generate, GenerateLoad, GenerateLoadActivate
119 // args = new String[]{"src/main/resources/json","src/test/resources/xml"};
120 logger.info("DGXML Conversion Started with arguments :" + args[0] + ":" + args[1]);
121 if (args != null && args.length >= 2) {
125 throw new Exception("Sufficient inputs are missing <jsonPath> <xmlPath>");
128 application.generateXMLFromJSON(jsonPath, xmlPath, propertyPath);
129 logger.info("DGXML Conversion Completed...");
130 } catch (Exception e) {
131 logger.error("Failed in DG XML Generation :" + e.getMessage());