adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/impl/Utils.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.so.adapters.sdnc.impl;
  22
  23
  24 import java.io.StringWriter;
  25
  26 import javax.xml.XMLConstants;
  27 import javax.xml.parsers.DocumentBuilder;
  28 import javax.xml.parsers.DocumentBuilderFactory;
  29 import javax.xml.transform.Transformer;
  30 import javax.xml.transform.TransformerFactory;
  31 import javax.xml.transform.dom.DOMSource;
  32 import javax.xml.transform.stream.StreamResult;
  33
  34 import org.onap.so.logger.MessageEnum;
  35 import org.onap.so.logger.MsoLogger;
  36 import org.w3c.dom.Document;
  37 import org.w3c.dom.Element;
  38 import org.w3c.dom.Node;
  39 import org.w3c.dom.NodeList;
  40 public class Utils {
  41
  42         private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.RA, Utils.class);
  43
  44         private Utils() {
  45         }
  46
  47         public static String genSdncReq(Document reqDoc, RequestTunables rt) {
  48                 try {
  49
  50                         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
  51                         DocumentBuilder db = dbf.newDocumentBuilder();
  52
  53                         //NewDoc for output
  54                         //Root
  55                         Document newdoc = db.newDocument();
  56                         Element root = newdoc.createElementNS(rt.getNamespace(), "input");
  57                         newdoc.appendChild(root);
  58
  59                         //Header
  60                         Element hdr = newdoc.createElement(rt.getHeaderName());
  61                         root.appendChild(hdr);
  62
  63                         String elemData = rt.getReqId();
  64                         Element hdrChild;
  65                         if (elemData != null && elemData.length() > 0)
  66                         {
  67                                 hdrChild = newdoc.createElement("svc-request-id");
  68                                 hdrChild.appendChild(newdoc.createTextNode(elemData));
  69                                 hdr.appendChild(hdrChild);
  70                         }
  71
  72                         elemData = rt.getAction();
  73                         if (elemData != null && elemData.length() > 0)
  74                         {
  75                                 hdrChild = newdoc.createElement("svc-action");
  76                                 hdrChild.appendChild(newdoc.createTextNode(elemData));
  77                                 hdr.appendChild(hdrChild);
  78                         }
  79
  80                         elemData = rt.getSdncaNotificationUrl();
  81                         if (elemData != null && elemData.length() > 0)
  82                         {
  83                                 hdrChild = newdoc.createElement("svc-notification-url");
  84                                 hdrChild.appendChild(newdoc.createTextNode(elemData));
  85                                 hdr.appendChild(hdrChild);
  86                         }
  87
  88                         //RequestData
  89                         NodeList nodes = reqDoc.getDocumentElement().getChildNodes();
  90                         for (int i = 0; i < nodes.getLength(); i++) {
  91                                 Node n = nodes.item(i);
  92                                 Node newNode = newdoc.importNode(n, true);
  93                                 root.appendChild(newNode);
  94                         }
  95
  96                         String s = domToStr(newdoc);
  97                         msoLogger.debug("Formatted SdncReq:\n" + s);
  98                         return s;
  99
 100                 } catch (Exception e) {
 101                         msoLogger.error(MessageEnum.RA_ERROR_CREATE_SDNC_REQUEST, "SDNC", "", MsoLogger.ErrorCode.BusinessProcesssError, "Exception in genSdncReq", e);
 102                 }
 103                 return null;
 104         }
 105
 106         public static String genSdncPutReq(Document reqDoc, RequestTunables rt) {
 107                 try {
 108
 109                         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
 110                         DocumentBuilder db = dbf.newDocumentBuilder();
 111
 112                         //NewDoc for output
 113                         //Root
 114                         Document newdoc = db.newDocument();
 115
 116                         //RequestData
 117                         NodeList nodes = reqDoc.getDocumentElement().getChildNodes();
 118
 119                         Element root = newdoc.createElementNS(nodes.item(0).getNamespaceURI(), nodes.item(0).getNodeName());
 120                         newdoc.appendChild(root);
 121
 122                         NodeList childNodes = nodes.item(0).getChildNodes();
 123                         for (int i = 0; i < childNodes.getLength(); i++) {
 124                                         Node n = childNodes.item(i);
 125                                         Node newNode = newdoc.importNode(n, true);
 126                                         root.appendChild(newNode);
 127                         }
 128
 129                         String s = domToStr(newdoc);
 130                         msoLogger.debug("Formatted SdncPutReq:\n" + s);
 131                         return s;
 132
 133                 } catch (Exception e) {
 134                         msoLogger.error(MessageEnum.RA_ERROR_CREATE_SDNC_REQUEST, "SDNC", "", MsoLogger.ErrorCode.DataError, "Exception in genSdncPutReq", e);
 135                 }
 136                 return null;
 137         }
 138
 139         public static String genMsoFailResp(SDNCResponse resp) {
 140                 try {
 141
 142                         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
 143                         DocumentBuilder db = dbf.newDocumentBuilder();
 144
 145                         //NewDoc for output
 146                         //Root
 147                         Document newdoc = db.newDocument();
 148                         Element root = newdoc.createElement("output");
 149                         newdoc.appendChild(root);
 150
 151                         Element elem1 = newdoc.createElement("svc-request-id");
 152                         elem1.appendChild(newdoc.createTextNode(resp.getReqId()));
 153                         root.appendChild(elem1);
 154
 155                         Element elem2 = newdoc.createElement("response-code");
 156                         elem2.appendChild(newdoc.createTextNode(String.valueOf(resp.getRespCode())));
 157                         root.appendChild(elem2);
 158
 159                         Element elem3 = newdoc.createElement("response-message");
 160                         elem3.appendChild(newdoc.createTextNode(String.valueOf(resp.getRespMsg())));
 161                         root.appendChild(elem3);
 162
 163                         String s = domToStr(newdoc);
 164                         msoLogger.debug("Formatted SdncReq:" + s);
 165                         return s;
 166
 167                 } catch (Exception e) {
 168                         msoLogger.error(MessageEnum.RA_ERROR_CREATE_SDNC_RESPONSE, "SDNC", "", MsoLogger.ErrorCode.DataError, "Exception in genMsoFailResp", e);
 169                 }
 170                 return null;
 171         }
 172
 173
 174         public static String domToStr(Document doc)
 175         {
 176                 if (doc != null)
 177                 {
 178                         try {
 179                                 DOMSource ds = new DOMSource(doc);
 180                                 StringWriter sw = new StringWriter();
 181                                 StreamResult sr = new StreamResult(sw);
 182                                 TransformerFactory tf = TransformerFactory.newInstance();
 183                                 tf.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "");
 184                                 tf.setAttribute(XMLConstants.ACCESS_EXTERNAL_STYLESHEET, "");
 185                                 Transformer t = tf.newTransformer();
 186                                 //t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");//<?xml version="1.0" encoding="UTF-8"?>
 187                                 t.transform(ds, sr);
 188                                 String s = sw.toString();
 189
 190                                 // This is an awful fix for now but we don't want that xmlns="" to be generated
 191                                 s = s.replaceAll("xmlns=\"\"", "");
 192                                 return s;
 193                         } catch (Exception e) {
 194                                 msoLogger.error(MessageEnum.RA_ERROR_CONVERT_XML2STR, "", "", MsoLogger.ErrorCode.DataError, "Exception - domToStr", e);
 195                         }
 196                 }
 197                 return null;
 198         }
 199 }