ECOMP-PDP-REST/src/main/java/org/openecomp/policy/pdp/rest/api/services/PAPServices.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ECOMP-PDP-REST
   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 package org.openecomp.policy.pdp.rest.api.services;
  21
  22 import java.io.ByteArrayInputStream;
  23 import java.io.IOException;
  24 import java.io.InputStream;
  25 import java.io.ObjectInputStream;
  26 import java.io.OutputStream;
  27 import java.net.HttpURLConnection;
  28 import java.net.URL;
  29 import java.nio.charset.StandardCharsets;
  30 import java.util.Arrays;
  31 import java.util.Base64;
  32 import java.util.Collections;
  33 import java.util.List;
  34 import java.util.Map;
  35 import java.util.UUID;
  36
  37 import org.apache.commons.io.IOUtils;
  38 import org.openecomp.policy.api.PolicyException;
  39 import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
  40 import org.openecomp.policy.common.logging.flexlogger.Logger;
  41 import org.openecomp.policy.pdp.rest.config.PDPApiAuth;
  42 import org.openecomp.policy.rest.XACMLRestProperties;
  43 import org.openecomp.policy.xacml.api.XACMLErrorConstants;
  44 import org.openecomp.policy.xacml.std.pap.StdPDPPolicy;
  45
  46 import com.att.research.xacml.util.XACMLProperties;
  47 import com.fasterxml.jackson.databind.ObjectMapper;
  48
  49 public class PAPServices {
  50     private static final String SUCCESS = "success";
  51     private static Logger LOGGER = FlexLogger.getLogger(PAPServices.class
  52             .getName());
  53
  54     private int responseCode = 0;
  55     private static String environment = "DEVL";
  56     private static Boolean junit = false;
  57     private static List<String> paps = null;
  58     private static final Object papResourceLock = new Object();
  59     private String operation = null;
  60     private String requestMethod = null;
  61     private String encoding = null;
  62
  63     public PAPServices() {
  64         environment = PDPApiAuth.getEnvironment();
  65         if(paps == null){
  66             synchronized (papResourceLock) {
  67                 String urlList = XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_URLS);
  68                 if(urlList == null){
  69                     urlList = XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_URL);
  70                 }
  71                 paps = Arrays.asList(urlList.split(","));
  72             }
  73         }
  74     }
  75
  76     private String getPAPEncoding(){
  77         if(encoding  == null){
  78             String userID =  XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_USERID);
  79             String pass = XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_PASS);
  80             Base64.Encoder encoder = Base64.getEncoder();
  81             encoding =  encoder.encodeToString((userID+":"+pass).getBytes(StandardCharsets.UTF_8));
  82         }
  83         return encoding;
  84     }
  85
  86     private void rotatePAPList(){
  87         synchronized (papResourceLock) {
  88             Collections.rotate(paps, -1);
  89         }
  90     }
  91
  92     private String getPAP(){
  93         String result;
  94         synchronized (papResourceLock) {
  95             result = paps.get(0);
  96         }
  97         return result;
  98     }
  99
 100     public int getResponseCode() {
 101         return responseCode;
 102     }
 103
 104     public Object callPAP(Object content, String[] parameters, UUID requestID,
 105             String clientScope) throws PolicyException {
 106         String response = null;
 107         HttpURLConnection connection = null;
 108         responseCode = 0;
 109         // Checking for the available PAPs is done during the first Request and
 110         // the List is going to have the connected PAP as first element.
 111         // This makes it Real-Time to change the list depending on their
 112         // availability.
 113         if (paps == null || paps.isEmpty()) {
 114             String message = XACMLErrorConstants.ERROR_DATA_ISSUE + "PAPs List is Empty.";
 115             LOGGER.error(message);
 116             throw new PolicyException(message);
 117         }
 118         int papsCount = 0;
 119         boolean connected = false;
 120         while (papsCount < paps.size()) {
 121             try {
 122                 String fullURL = getPAP();
 123                 fullURL = checkParameter(parameters, fullURL);
 124                 URL url = new URL(fullURL);
 125                 LOGGER.debug("--- Sending Request to PAP : "+ url.toString() + " ---");
 126                 // Open the connection
 127                 connection = (HttpURLConnection) url.openConnection();
 128                 // Setting Content-Type
 129                 connection.setRequestProperty("Content-Type","application/json");
 130                 // Adding Authorization
 131                 connection.setRequestProperty("Authorization", "Basic "+ getPAPEncoding());
 132                 connection.setRequestProperty("Environment", environment);
 133                 connection.setRequestProperty("ClientScope", clientScope);
 134                 // set the method and headers
 135                 connection.setRequestMethod(requestMethod);
 136                 connection.setUseCaches(false);
 137                 connection.setInstanceFollowRedirects(false);
 138                 connection.setDoOutput(true);
 139                 connection.setDoInput(true);
 140                 // Adding RequestID
 141                 if (requestID == null) {
 142                     requestID = UUID.randomUUID();
 143                     LOGGER.info("No request ID provided, sending generated ID: "
 144                             + requestID.toString());
 145                 } else {
 146                     LOGGER.info("Using provided request ID: "
 147                             + requestID.toString());
 148                 }
 149                 connection.setRequestProperty("X-ECOMP-RequestID",
 150                         requestID.toString());
 151                 if (content != null && (content instanceof InputStream)) {
 152                     // send current configuration
 153                     try (OutputStream os = connection.getOutputStream()) {
 154                         int count = IOUtils.copy((InputStream) content, os);
 155                         if (LOGGER.isDebugEnabled()) {
 156                             LOGGER.debug("copied to output, bytes=" + count);
 157                         }
 158                     }
 159                 } else if(content != null){
 160                     // the content is an object to be encoded in JSON
 161                     ObjectMapper mapper = new ObjectMapper();
 162                     if (!junit) {
 163                         mapper.writeValue(connection.getOutputStream(),
 164                                 content);
 165                     }
 166                 }
 167                 // DO the connect
 168                 connection.connect();
 169                 responseCode = connection.getResponseCode();
 170                 // If Connected to PAP then break from the loop and continue
 171                 // with the Request
 172                 if (connection.getResponseCode() > 0 || junit) {
 173                     connected = true;
 174                     break;
 175                 } else {
 176                     LOGGER.debug(XACMLErrorConstants.ERROR_PERMISSIONS+ "PAP Response Code : "  + connection.getResponseCode());
 177                     rotatePAPList();
 178                 }
 179             } catch (Exception e) {
 180                 // This means that the PAP is not working
 181                 if (junit) {
 182                     connected = true;
 183                     break;
 184                 }
 185                 LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR
 186                         + "PAP connection Error : " + e);
 187                 rotatePAPList();
 188             }
 189             papsCount++;
 190         }
 191         if (connected) {
 192             // Read the Response
 193             LOGGER.debug("connected to the PAP : " + getPAP());
 194             LOGGER.debug("--- Response: ---");
 195             if(connection != null){
 196                 Map<String, List<String>> headers = connection.getHeaderFields();
 197                 for (String key : headers.keySet()) {
 198                         LOGGER.debug("Header :" + key + "  Value: " + headers.get(key));
 199                 }
 200
 201                 try {
 202                         response = checkResponse(connection, requestID);
 203                 } catch (IOException e) {
 204                         LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
 205                         response = XACMLErrorConstants.ERROR_SYSTEM_ERROR + e;
 206                         throw new PolicyException(
 207                                         XACMLErrorConstants.ERROR_SYSTEM_ERROR
 208                                         + "Decoding the result ", e);
 209                 }
 210                 if (junit) {
 211                         response = SUCCESS;
 212                 }
 213             }else{
 214                 response = XACMLErrorConstants.ERROR_SYSTEM_ERROR + "connection is null";
 215             }
 216             return response;
 217         } else {
 218             response = XACMLErrorConstants.ERROR_SYSTEM_ERROR
 219                     + "Unable to get valid response from PAP(s) " + paps;
 220             return response;
 221         }
 222     }
 223
 224     public String getActiveVersion(String policyScope, String filePrefix, String policyName, String clientScope, UUID requestID) {
 225         String version = null;
 226         HttpURLConnection connection = null;
 227         String [] parameters = {"apiflag=version","policyScope="+policyScope, "filePrefix="+filePrefix, "policyName="+policyName};
 228         if (paps == null || paps.isEmpty()) {
 229             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "PAPs List is Empty.");
 230             try {
 231                 throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE +"PAPs List is empty.");
 232             } catch (Exception e) {
 233                 LOGGER.error(e.getMessage());
 234             }
 235             }else {
 236                 int papsCount = 0;
 237                 boolean connected = false;
 238                 while (papsCount < paps.size()) {
 239                     try {
 240                         String fullURL = getPAP();
 241                         if (parameters != null && parameters.length > 0) {
 242                             String queryString = "";
 243                             for (String p : parameters) {
 244                                 queryString += "&" + p;
 245                             }
 246                             fullURL += "?" + queryString.substring(1);
 247                         }
 248
 249                         URL url = new URL (fullURL);
 250
 251                         //Open the connection
 252                         connection = (HttpURLConnection)url.openConnection();
 253
 254                         // Setting Content-Type
 255                         connection.setRequestProperty("Content-Type",
 256                                 "application/json");
 257
 258                         // Adding Authorization
 259                         connection.setRequestProperty("Authorization", "Basic "
 260                                 + getPAPEncoding());
 261
 262                         connection.setRequestProperty("Environment", environment);
 263                         connection.setRequestProperty("ClientScope", clientScope);
 264
 265
 266                         //set the method and headers
 267                         connection.setRequestMethod("GET");
 268                         connection.setUseCaches(false);
 269                         connection.setInstanceFollowRedirects(false);
 270                         connection.setDoOutput(true);
 271                         connection.setDoInput(true);
 272                         connection.setRequestProperty("X-ECOMP-RequestID", requestID.toString());
 273
 274                         //DO the connect
 275                         connection.connect();
 276
 277                         // If Connected to PAP then break from the loop and continue with the Request
 278                         if (connection.getResponseCode() > 0) {
 279                             connected = true;
 280                             break;
 281
 282                         } else {
 283                             LOGGER.debug(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "PAP connection Error");
 284                         }
 285                     } catch (Exception e) {
 286                         // This means that the PAP is not working
 287                         LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "PAP connection Error : " + e);
 288                         rotatePAPList();
 289                     }
 290                     papsCount++;
 291                 }
 292
 293                 if (connected) {
 294                     //Read the Response
 295                     LOGGER.debug("connected to the PAP : " + getPAP());
 296                     LOGGER.debug("--- Response: ---");
 297                     Map<String, List<String>> headers = connection.getHeaderFields();
 298                     for (String key : headers.keySet()) {
 299                         LOGGER.debug("Header :" + key + "  Value: " + headers.get(key));
 300                     }
 301                     try {
 302                         if (connection.getResponseCode() == 200) {
 303                             // Check for successful creation of policy
 304                             version = connection.getHeaderField("version");
 305                             LOGGER.debug("ActiveVersion from the Header: " + version);
 306                         } else if (connection.getResponseCode() == 403) {
 307                             LOGGER.error(XACMLErrorConstants.ERROR_PERMISSIONS + "response code of the URL is "
 308                                     + connection.getResponseCode() + ". PEP is not Authorized for making this Request!! \n Contact Administrator for this Scope. ");
 309                             version = "pe100";
 310                         } else if (connection.getResponseCode() == 404) {
 311                             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "response code of the URL is "
 312                                         + connection.getResponseCode() + ". This indicates a problem with getting the version from the PAP");
 313                             version = "pe300";
 314                         } else {
 315                             LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "BAD REQUEST:  Error occured while getting the version from the PAP. The request may be incorrect.");
 316                         }
 317                     } catch (IOException e) {
 318                         LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e);
 319                         try {
 320                             throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE +"ERROR in connecting to the PAP ", e);
 321                         } catch (Exception e1) {
 322                             LOGGER.error(e1.getMessage());
 323                         }
 324                     }
 325
 326                 } else {
 327                     LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "Unable to get valid response from PAP(s) " + paps);
 328                     try {
 329                         throw new Exception(XACMLErrorConstants.ERROR_DATA_ISSUE +"ERROR in connecting to the PAP ");
 330                     } catch (Exception e) {
 331                         LOGGER.error(e.getMessage());
 332                     }
 333                 }
 334             }
 335             return version;
 336     }
 337
 338     private String checkResponse(HttpURLConnection connection, UUID requestID) throws IOException {
 339         String response = null;
 340         if (responseCode == 200 || junit) {
 341             // Check for successful creation of policy
 342             String isSuccess = null;
 343             if (!junit) { // is this a junit test?
 344                 isSuccess = connection.getHeaderField("successMapKey");
 345                 operation = connection.getHeaderField("operation");
 346             } else {
 347                 isSuccess = SUCCESS;
 348             }
 349             if (SUCCESS.equals(isSuccess)) {
 350                 if ("update".equals(operation)) {
 351                     response = "Transaction ID: " + requestID + " --Policy with the name "+ connection.getHeaderField("policyName")
 352                             + " was successfully updated. ";
 353                     if (connection.getHeaderField("safetyChecker")!=null) {
 354                         response = response
 355                                                 + "\n\nPolicy Safety Checker Warning: This closedLoopControlName "
 356                                                 + "is potentially in conflict with " + connection.getHeaderField("conflictCLName")
 357                                                 +  " that already exists." + " See detailed information on ClosedLoop Pairs below: "
 358                                                 +"\n\n"+connection.getHeaderField("safetyChecker");
 359                     }
 360                 } else if ("create".equals(operation)) {
 361                         response = "Transaction ID: " + requestID + " --Policy with the name "+ connection.getHeaderField("policyName")
 362                             + " was successfully created.";
 363                     if (connection.getHeaderField("safetyChecker")!=null) {
 364                         response = response
 365                                                 + "\n\nPolicy Safety Checker Warning: This closedLoopControlName "
 366                                                 + "is potentially in conflict with " + connection.getHeaderField("conflictCLName")
 367                                                 +  " that already exists. " + "See detailed information on ClosedLoop Pairs below: "
 368                                                 +"\n\n"+connection.getHeaderField("safetyChecker");
 369                     }
 370                 } else if ("delete".equals(operation)) {
 371                     response = "Transaction ID: " + requestID + " --The policy was successfully deleted.";
 372                 } else if ("import".equals(operation)) {
 373                     response = "Transaction ID: " + requestID + " --The policy engine import for "+ connection.getHeaderField("service")
 374                             + " was successfull.";
 375                 } else if ("createDictionary".equals(operation)) {
 376                     response = "Transaction ID: " + requestID + " --Dictionary Item was added successfully!";
 377                 } else if ("updateDictionary".equals(operation)) {
 378                     response = "Transaction ID: " + requestID + " --Dictionary Item was updated successfully!";
 379                 } else if ("getDictionary".equals(operation)) {
 380                     String json =  null;
 381                     try {
 382
 383                         //get the json string from the response
 384                         InputStream is = connection.getInputStream();
 385
 386                         // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
 387                         java.util.Scanner scanner = new java.util.Scanner(is);
 388                         scanner.useDelimiter("\\A");
 389                         json =  scanner.hasNext() ? scanner.next() : "";
 390                         scanner.close();
 391
 392                     } catch (IOException e1) {
 393                         LOGGER.error(e1.getMessage());
 394                     }
 395                     response = "Transaction ID: " + requestID + " --Dictionary Items Retrieved " + json;
 396                 } else if ("getMetrics".equals(operation)) {
 397                         response = "Transaction ID: " + requestID + " --Policy Metrics Retrieved " + connection.getHeaderField("metrics");
 398                 }
 399                 LOGGER.info(response);
 400             } else {
 401                 String message = XACMLErrorConstants.ERROR_DATA_ISSUE
 402                         + "Operation unsuccessful, unable to complete the request!";
 403                 LOGGER.error(message);
 404                 response = message;
 405             }
 406         } else if (connection.getResponseCode() == 202) {
 407             if ("delete".equalsIgnoreCase(connection.getHeaderField("operation")) &&
 408                     "true".equals(connection.getHeaderField("lockdown"))) {
 409                 response = "Transaction ID: "
 410                         + requestID
 411                         + " --Policies are locked down, please try again later.";
 412                 LOGGER.warn(response);
 413             }
 414         } else if (connection.getResponseCode() == 204) {
 415             if ("push".equals(connection.getHeaderField("operation"))) {
 416                 response = "Transaction ID: "
 417                         + requestID
 418                         + " --Policy '"
 419                         + connection.getHeaderField("policyId")
 420                         + "' was successfully pushed to the PDP group '"
 421                         + connection.getHeaderField("groupId") + "'.";
 422                 LOGGER.info(response);
 423             }
 424         } else if (connection.getResponseCode() == 400  && connection.getHeaderField("error") != null) {
 425                 response = connection.getHeaderField("error");
 426             LOGGER.error(response);
 427         } else if (connection.getResponseCode() == 403) {
 428             response = XACMLErrorConstants.ERROR_PERMISSIONS
 429                     + "response code of the URL is "
 430                     + connection.getResponseCode()
 431                     + ". PEP is not Authorized for making this Request!! \n Contact Administrator for this Scope. ";
 432             LOGGER.error(response);
 433         } else if (connection.getResponseCode() == 404 && connection.getHeaderField("error") != null) {
 434             if ("unknownGroupId".equals(connection.getHeaderField("error"))) {
 435                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 436                         + connection.getHeaderField("message")
 437                         + " Please check the pdpGroup you are requesting to move the policy to.";
 438                 LOGGER.error(response);
 439             }
 440         } else if (connection.getResponseCode() == 409  && connection.getHeaderField("error") != null) {
 441             if ("modelExistsDB".equals(connection.getHeaderField("error"))) {
 442                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 443                         + "Import Value Exist Error:  The import value "
 444                         + connection.getHeaderField("service")
 445                         + " already exist on the PAP. "
 446                         + "Please create a new import value.";
 447             } else if ("policyExists".equals(connection.getHeaderField("error"))) {
 448                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 449                         + "Policy Exist Error:  The Policy "
 450                         + connection.getHeaderField("policyName")
 451                         + " already exist on the PAP. "
 452                         + "Please create a new policy or use the update API to modify the existing one.";
 453             } else if ("dictionaryItemExists".equals(connection.getHeaderField("error"))) {
 454                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 455                         + "Dictionary Item Exist Error:  The Dictionary Item already exist in the database. "
 456                         + "Please create a new Dictionary Item or use the update API to modify the existing one.";
 457             } else if ("duplicateGroup".equals(connection.getHeaderField("error"))) {
 458                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 459                         + "Group Policy Scope List Exist Error:  The Group Policy Scope List for this Dictionary Item already exist in the database. "
 460                         + "Duplicate Group Policy Scope Lists for multiple groupNames is not allowed. "
 461                         + "Please review the request and verify that the groupPolicyScopeListData1 is unique compared to existing groups.";
 462             }
 463             LOGGER.error(response);
 464         } else if (connection.getResponseCode() == 500 && connection.getHeaderField("error") != null) {
 465             if ("jpautils".equals(connection.getHeaderField("error"))) {
 466                 response = XACMLErrorConstants.ERROR_SYSTEM_ERROR
 467                         + "Could not create JPAUtils instance on the PAP";
 468             } else if ("deleteDB".equals(connection.getHeaderField("error"))) {
 469                 response = XACMLErrorConstants.ERROR_SYSTEM_ERROR
 470                         + "Failed to delete Policy from database.";
 471             } else if ("deleteFile".equals(connection.getHeaderField("error"))) {
 472                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 473                         + "Cannot delete the policy file";
 474             } else if ("groupUpdate".equals(connection.getHeaderField("error"))) {
 475                 response = connection.getHeaderField("message");
 476             } else if ("unknown".equals(connection.getHeaderField("error"))) {
 477                 response = XACMLErrorConstants.ERROR_UNKNOWN
 478                         + "Failed to delete the policy for an unknown reason.  Check the file system and other logs for further information.";
 479             } else if ("deleteConfig".equals(connection.getHeaderField("error"))) {
 480                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 481                         + "Cannot delete the configuration or action body file in specified location.";
 482             } else if ("missing".equals(connection.getHeaderField("error"))) {
 483                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 484                         + "Failed to create value in database because service does match a value in file";
 485             } else if ("importDB".equals(connection.getHeaderField("error"))) {
 486                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 487                         + "Database errors during policy engine import";
 488             } else if ("policyCopyError".equals(connection.getHeaderField("error"))) {
 489                 response = XACMLErrorConstants.ERROR_PROCESS_FLOW
 490                         + connection.getHeaderField("message");
 491             } else if ("addGroupError".equals(connection.getHeaderField("error"))) {
 492                 response = connection.getHeaderField("message");
 493             } else if ("validation".equals(connection.getHeaderField("error"))){
 494                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 495                         + "Validation errors during policy engine " + connection.getHeaderField("operation") +
 496                         " for " + connection.getHeaderField("service");
 497             } else if ("error".equals(connection.getHeaderField("error"))) {
 498                 response = XACMLErrorConstants.ERROR_UNKNOWN
 499                         + "Could not create or update the policy for and unknown reason";
 500             }else{
 501                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 502                         + "BAD REQUEST:  Error occured while attempting perform this operation.. the request may be incorrect.";
 503             }
 504             LOGGER.error(response);
 505         } else {
 506             response = XACMLErrorConstants.ERROR_DATA_ISSUE
 507                     + "BAD REQUEST:  Error occured while attempting perform this operation.. the request may be incorrect.";
 508             LOGGER.error(response);
 509         }
 510         return response;
 511     }
 512
 513     private String checkParameter(String[] parameters, String fullURL) {
 514         if (parameters != null && parameters.length > 0) {
 515             String queryString = "";
 516             for (String p : parameters) {
 517                 queryString += "&" + p;
 518                 if (p.equalsIgnoreCase("operation=post")) {
 519                     requestMethod = "POST";
 520                 } else if (p.equalsIgnoreCase("operation=delete")) {
 521                     requestMethod = "DELETE";
 522                     operation = "delete";
 523                 } else if (p.equalsIgnoreCase("operation=get")) {
 524                     requestMethod = "GET";
 525                     operation = "get";
 526                 } else if (p.equalsIgnoreCase("operation=put")||p.equalsIgnoreCase("operation=create")
 527                         ||p.equalsIgnoreCase("operation=update")||p.equalsIgnoreCase("operation=createDictionary")){
 528                         requestMethod = "PUT";
 529                     if (p.equalsIgnoreCase("operation=create")) {
 530                         operation = "create";
 531                     } else if (p.equalsIgnoreCase("operation=update")) {
 532                         operation = "update";
 533                     } else if (p.equalsIgnoreCase("operation=createDictionary")){
 534                                                 operation = "createDictionary";
 535                                         }
 536                 }else if (p.equalsIgnoreCase("importService=MICROSERVICE")||p.equalsIgnoreCase("importService=BRMSPARAM")){
 537                         requestMethod = "PUT";
 538                 }
 539             }
 540             fullURL += "?" + queryString.substring(1);
 541         }
 542         return fullURL;
 543     }
 544
 545         public StdPDPPolicy pushPolicy(String policyScope, String filePrefix,
 546                         String policyName, String clientScope, String pdpGroup,
 547                         UUID requestID) throws PolicyException {
 548                 String json = "{ "
 549                                 + "\"apiflag\": \"api\","
 550                                 + "\"policyScope\": \""+policyScope+"\","
 551                                 + "\"filePrefix\": \""+filePrefix+"\","
 552                                 + "\"policyName\": \""+policyName+"\","
 553                                 + "\"clientScope\": \""+clientScope+"\","
 554                                 + "\"pdpGroup\": \""+pdpGroup+"\"}";
 555         //String response = null;
 556         HttpURLConnection connection = null;
 557         responseCode = 0;
 558         if (paps == null || paps.isEmpty()) {
 559             String message = XACMLErrorConstants.ERROR_DATA_ISSUE + "PAPs List is Empty.";
 560             LOGGER.error(message);
 561             throw new PolicyException(message);
 562         }
 563         int papsCount = 0;
 564         boolean connected = false;
 565         while (papsCount < paps.size()) {
 566             try {
 567                 String fullURL = getPAP();
 568                 fullURL = (fullURL.endsWith("/"))? fullURL+"ecomp/pushPolicy" : fullURL+"/ecomp/pushPolicy";
 569                 URL url = new URL(fullURL);
 570                 LOGGER.debug("--- Sending Request to PAP : "+ url.toString() + " ---");
 571                 // Open the connection
 572                 connection = (HttpURLConnection) url.openConnection();
 573                 // Setting Content-Type
 574                 connection.setRequestProperty("Content-Type","application/json");
 575                 // Adding Authorization
 576                 connection.setRequestProperty("Authorization", "Basic "+ getPAPEncoding());
 577                 connection.setRequestProperty("Environment", environment);
 578                 connection.setRequestProperty("ClientScope", clientScope);
 579                 // set the method and headers
 580                 connection.setRequestMethod("POST");
 581                 connection.setUseCaches(false);
 582                 connection.setInstanceFollowRedirects(false);
 583                 connection.setDoOutput(true);
 584                 // Adding RequestID
 585                 if (requestID == null) {
 586                     requestID = UUID.randomUUID();
 587                     LOGGER.info("No request ID provided, sending generated ID: "
 588                             + requestID.toString());
 589                 } else {
 590                     LOGGER.info("Using provided request ID: "
 591                             + requestID.toString());
 592                 }
 593                 connection.setRequestProperty("X-ECOMP-RequestID",
 594                         requestID.toString());
 595                 // DO the connect
 596                 try (OutputStream os = connection.getOutputStream()) {
 597                     int count = IOUtils.copy(new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8)), os);
 598                     if (LOGGER.isDebugEnabled()) {
 599                         LOGGER.debug("copied to output, bytes=" + count);
 600                     }
 601                 }
 602                 connection.connect();
 603                 responseCode = connection.getResponseCode();
 604                 // If Connected to PAP then break from the loop and continue
 605                 // with the Request
 606                 if (connection.getResponseCode() > 0 || junit) {
 607                     connected = true;
 608                     break;
 609                 } else {
 610                     LOGGER.debug(XACMLErrorConstants.ERROR_PERMISSIONS+ "PAP Response Code : "  + connection.getResponseCode());
 611                     rotatePAPList();
 612                 }
 613             } catch (Exception e) {
 614                 // This means that the PAP is not working
 615                 if (junit) {
 616                     connected = true;
 617                     break;
 618                 }
 619                 LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR
 620                         + "PAP connection Error : " + e);
 621                 rotatePAPList();
 622             }
 623             papsCount++;
 624         }
 625         if (connected) {
 626             // Read the Response
 627             LOGGER.debug("connected to the PAP : " + getPAP());
 628             LOGGER.debug("--- Response: ---");
 629             if(connection != null){
 630                 Map<String, List<String>> headers = connection.getHeaderFields();
 631                 for (String key : headers.keySet()) {
 632                     LOGGER.debug("Header :" + key + "  Value: " + headers.get(key));
 633                 }
 634                 try {
 635                     if(responseCode==202){
 636                         StdPDPPolicy policy = (StdPDPPolicy) new ObjectInputStream(connection.getInputStream()).readObject();
 637                         return policy;
 638                     }
 639                 } catch (IOException | ClassNotFoundException e) {
 640                     LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
 641                     throw new PolicyException(
 642                             XACMLErrorConstants.ERROR_SYSTEM_ERROR
 643                                     + "Decoding the result ", e);
 644                 }
 645             }
 646             return null;
 647         } else {
 648             return null;
 649         }
 650     }
 651 }