ONAP-PDP-REST/src/main/java/org/onap/policy/pdp/rest/api/services/PAPServices.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP-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.onap.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.onap.policy.api.PolicyException;
  39 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  40 import org.onap.policy.common.logging.flexlogger.Logger;
  41 import org.onap.policy.pdp.rest.config.PDPApiAuth;
  42 import org.onap.policy.rest.XACMLRestProperties;
  43 import org.onap.policy.xacml.api.XACMLErrorConstants;
  44 import org.onap.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         }else {
 231             int papsCount = 0;
 232             boolean connected = false;
 233             while (papsCount < paps.size()) {
 234                 try {
 235                     String fullURL = getPAP();
 236                     if (parameters != null && parameters.length > 0) {
 237                         String queryString = "";
 238                         for (String p : parameters) {
 239                             queryString += "&" + p;
 240                         }
 241                         fullURL += "?" + queryString.substring(1);
 242                     }
 243
 244                     URL url = new URL (fullURL);
 245
 246                     //Open the connection
 247                     connection = (HttpURLConnection)url.openConnection();
 248
 249                     // Setting Content-Type
 250                     connection.setRequestProperty("Content-Type",
 251                             "application/json");
 252
 253                     // Adding Authorization
 254                     connection.setRequestProperty("Authorization", "Basic "
 255                             + getPAPEncoding());
 256
 257                     connection.setRequestProperty("Environment", environment);
 258                     connection.setRequestProperty("ClientScope", clientScope);
 259
 260
 261                     //set the method and headers
 262                     connection.setRequestMethod("GET");
 263                     connection.setUseCaches(false);
 264                     connection.setInstanceFollowRedirects(false);
 265                     connection.setDoOutput(true);
 266                     connection.setDoInput(true);
 267                     connection.setRequestProperty("X-ECOMP-RequestID", requestID.toString());
 268
 269                     //DO the connect
 270                     connection.connect();
 271
 272                     // If Connected to PAP then break from the loop and continue with the Request
 273                     if (connection.getResponseCode() > 0) {
 274                         connected = true;
 275                         break;
 276
 277                     } else {
 278                         LOGGER.debug(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "PAP connection Error");
 279                     }
 280                 } catch (Exception e) {
 281                     // This means that the PAP is not working
 282                     LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "PAP connection Error : " + e);
 283                     rotatePAPList();
 284                 }
 285                 papsCount++;
 286             }
 287
 288             if (connected) {
 289                 //Read the Response
 290                 LOGGER.debug("connected to the PAP : " + getPAP());
 291                 LOGGER.debug("--- Response: ---");
 292                 Map<String, List<String>> headers = connection.getHeaderFields();
 293                 for (String key : headers.keySet()) {
 294                     LOGGER.debug("Header :" + key + "  Value: " + headers.get(key));
 295                 }
 296                 try {
 297                     if (connection.getResponseCode() == 200) {
 298                         // Check for successful creation of policy
 299                         version = connection.getHeaderField("version");
 300                         LOGGER.debug("ActiveVersion from the Header: " + version);
 301                     } else if (connection.getResponseCode() == 403) {
 302                         LOGGER.error(XACMLErrorConstants.ERROR_PERMISSIONS + "response code of the URL is "
 303                                 + connection.getResponseCode() + ". PEP is not Authorized for making this Request!! \n Contact Administrator for this Scope. ");
 304                         version = "pe100";
 305                     } else if (connection.getResponseCode() == 404) {
 306                         LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "response code of the URL is "
 307                                 + connection.getResponseCode() + ". This indicates a problem with getting the version from the PAP");
 308                         version = "pe300";
 309                     } else {
 310                         LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + "BAD REQUEST:  Error occured while getting the version from the PAP. The request may be incorrect.");
 311                     }
 312                 } catch (IOException e) {
 313                     LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e);
 314                 }
 315             } else {
 316                 LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "Unable to get valid response from PAP(s) " + paps);
 317             }
 318         }
 319         return version;
 320     }
 321
 322     private String checkResponse(HttpURLConnection connection, UUID requestID) throws IOException {
 323         String response = null;
 324         if (responseCode == 200 || junit) {
 325             // Check for successful creation of policy
 326             String isSuccess = null;
 327             if (!junit) { // is this a junit test?
 328                 isSuccess = connection.getHeaderField("successMapKey");
 329                 operation = connection.getHeaderField("operation");
 330             } else {
 331                 isSuccess = SUCCESS;
 332             }
 333             if (SUCCESS.equals(isSuccess)) {
 334                 if ("update".equals(operation)) {
 335                     response = "Transaction ID: " + requestID + " --Policy with the name "+ connection.getHeaderField("policyName")
 336                             + " was successfully updated. ";
 337                     if (connection.getHeaderField("safetyChecker")!=null) {
 338                         response = response
 339                                                 + "\n\nPolicy Safety Checker Warning: This closedLoopControlName "
 340                                                 + "is potentially in conflict with " + connection.getHeaderField("conflictCLName")
 341                                                 +  " that already exists." + " See detailed information on ClosedLoop Pairs below: "
 342                                                 +"\n\n"+connection.getHeaderField("safetyChecker");
 343                     }
 344                 } else if ("create".equals(operation)) {
 345                         response = "Transaction ID: " + requestID + " --Policy with the name "+ connection.getHeaderField("policyName")
 346                             + " was successfully created.";
 347                     if (connection.getHeaderField("safetyChecker")!=null) {
 348                         response = response
 349                                                 + "\n\nPolicy Safety Checker Warning: This closedLoopControlName "
 350                                                 + "is potentially in conflict with " + connection.getHeaderField("conflictCLName")
 351                                                 +  " that already exists. " + "See detailed information on ClosedLoop Pairs below: "
 352                                                 +"\n\n"+connection.getHeaderField("safetyChecker");
 353                     }
 354                 } else if ("delete".equals(operation)) {
 355                     response = "Transaction ID: " + requestID + " --The policy was successfully deleted.";
 356                 } else if ("import".equals(operation)) {
 357                     response = "Transaction ID: " + requestID + " --The policy engine import for "+ connection.getHeaderField("service")
 358                             + " was successfull.";
 359                 } else if ("createDictionary".equals(operation)) {
 360                     response = "Transaction ID: " + requestID + " --Dictionary Item was added successfully!";
 361                 } else if ("updateDictionary".equals(operation)) {
 362                     response = "Transaction ID: " + requestID + " --Dictionary Item was updated successfully!";
 363                 } else if ("getDictionary".equals(operation)) {
 364                     String json =  null;
 365                     try {
 366
 367                         //get the json string from the response
 368                         InputStream is = connection.getInputStream();
 369
 370                         // read the inputStream into a buffer (trick found online scans entire input looking for end-of-file)
 371                         java.util.Scanner scanner = new java.util.Scanner(is);
 372                         scanner.useDelimiter("\\A");
 373                         json =  scanner.hasNext() ? scanner.next() : "";
 374                         scanner.close();
 375
 376                     } catch (IOException e1) {
 377                         LOGGER.error(e1.getMessage() + e1);
 378                     }
 379                     response = "Transaction ID: " + requestID + " --Dictionary Items Retrieved " + json;
 380                 } else if ("getMetrics".equals(operation)) {
 381                         response = "Transaction ID: " + requestID + " --Policy Metrics Retrieved " + connection.getHeaderField("metrics");
 382                 }
 383                 LOGGER.info(response);
 384             } else {
 385                 String message = XACMLErrorConstants.ERROR_DATA_ISSUE
 386                         + "Operation unsuccessful, unable to complete the request!";
 387                 LOGGER.error(message);
 388                 response = message;
 389             }
 390         } else if (connection.getResponseCode() == 202) {
 391             if ("delete".equalsIgnoreCase(connection.getHeaderField("operation")) &&
 392                     "true".equals(connection.getHeaderField("lockdown"))) {
 393                 response = "Transaction ID: "
 394                         + requestID
 395                         + " --Policies are locked down, please try again later.";
 396                 LOGGER.warn(response);
 397             }
 398         } else if (connection.getResponseCode() == 204) {
 399             if ("push".equals(connection.getHeaderField("operation"))) {
 400                 response = "Transaction ID: "
 401                         + requestID
 402                         + " --Policy '"
 403                         + connection.getHeaderField("policyId")
 404                         + "' was successfully pushed to the PDP group '"
 405                         + connection.getHeaderField("groupId") + "'.";
 406                 LOGGER.info(response);
 407             }
 408         } else if (connection.getResponseCode() == 400  && connection.getHeaderField("error") != null) {
 409                 response = connection.getHeaderField("error");
 410             LOGGER.error(response);
 411         } else if (connection.getResponseCode() == 403) {
 412             response = XACMLErrorConstants.ERROR_PERMISSIONS
 413                     + "response code of the URL is "
 414                     + connection.getResponseCode()
 415                     + ". PEP is not Authorized for making this Request!! \n Contact Administrator for this Scope. ";
 416             LOGGER.error(response);
 417         } else if (connection.getResponseCode() == 404 && connection.getHeaderField("error") != null) {
 418             if ("unknownGroupId".equals(connection.getHeaderField("error"))) {
 419                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 420                         + connection.getHeaderField("message")
 421                         + " Please check the pdpGroup you are requesting to move the policy to.";
 422                 LOGGER.error(response);
 423             }
 424         } else if (connection.getResponseCode() == 409  && connection.getHeaderField("error") != null) {
 425             if ("modelExistsDB".equals(connection.getHeaderField("error"))) {
 426                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 427                         + "Import Value Exist Error:  The import value "
 428                         + connection.getHeaderField("service")
 429                         + " already exist on the PAP. "
 430                         + "Please create a new import value.";
 431             } else if ("policyExists".equals(connection.getHeaderField("error"))) {
 432                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 433                         + "Policy Exist Error:  The Policy "
 434                         + connection.getHeaderField("policyName")
 435                         + " already exist on the PAP. "
 436                         + "Please create a new policy or use the update API to modify the existing one.";
 437             } else if ("dictionaryItemExists".equals(connection.getHeaderField("error"))) {
 438                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 439                         + "Dictionary Item Exist Error:  The Dictionary Item already exist in the database. "
 440                         + "Please create a new Dictionary Item or use the update API to modify the existing one.";
 441             } else if ("duplicateGroup".equals(connection.getHeaderField("error"))) {
 442                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 443                         + "Group Policy Scope List Exist Error:  The Group Policy Scope List for this Dictionary Item already exist in the database. "
 444                         + "Duplicate Group Policy Scope Lists for multiple groupNames is not allowed. "
 445                         + "Please review the request and verify that the groupPolicyScopeListData1 is unique compared to existing groups.";
 446             } else if("PolicyInPDP".equals(connection.getHeaderField("error"))){
 447                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 448                         + "Policy Exist Error:  The Policy trying to be deleted is active in PDP. "
 449                         + "Active PDP Polcies are not allowed to be deleted from PAP. "
 450                         + "Please First remove the policy from PDP in order to successfully delete the Policy from PAP.";
 451             }
 452             LOGGER.error(response);
 453         } else if (connection.getResponseCode() == 500 && connection.getHeaderField("error") != null) {
 454             if ("jpautils".equals(connection.getHeaderField("error"))) {
 455                 response = XACMLErrorConstants.ERROR_SYSTEM_ERROR
 456                         + "Could not create JPAUtils instance on the PAP";
 457             } else if ("deleteDB".equals(connection.getHeaderField("error"))) {
 458                 response = XACMLErrorConstants.ERROR_SYSTEM_ERROR
 459                         + "Failed to delete Policy from database.";
 460             } else if ("deleteFile".equals(connection.getHeaderField("error"))) {
 461                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 462                         + "Cannot delete the policy file";
 463             } else if ("groupUpdate".equals(connection.getHeaderField("error"))) {
 464                 response = connection.getHeaderField("message");
 465             } else if ("unknown".equals(connection.getHeaderField("error"))) {
 466                 response = XACMLErrorConstants.ERROR_UNKNOWN
 467                         + "Failed to delete the policy for an unknown reason.  Check the file system and other logs for further information.";
 468             } else if ("deleteConfig".equals(connection.getHeaderField("error"))) {
 469                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 470                         + "Cannot delete the configuration or action body file in specified location.";
 471             } else if ("missing".equals(connection.getHeaderField("error"))) {
 472                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 473                         + "Failed to create value in database because service does match a value in file";
 474             } else if ("importDB".equals(connection.getHeaderField("error"))) {
 475                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 476                         + "Database errors during policy engine import";
 477             } else if ("policyCopyError".equals(connection.getHeaderField("error"))) {
 478                 response = XACMLErrorConstants.ERROR_PROCESS_FLOW
 479                         + connection.getHeaderField("message");
 480             } else if ("addGroupError".equals(connection.getHeaderField("error"))) {
 481                 response = connection.getHeaderField("message");
 482             } else if ("validation".equals(connection.getHeaderField("error"))){
 483                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 484                         + "Validation errors during policy engine " + connection.getHeaderField("operation") +
 485                         " for " + connection.getHeaderField("service");
 486             } else if ("error".equals(connection.getHeaderField("error"))) {
 487                 response = XACMLErrorConstants.ERROR_UNKNOWN
 488                         + "Could not create or update the policy for and unknown reason";
 489             }else{
 490                 response = XACMLErrorConstants.ERROR_DATA_ISSUE
 491                         + "BAD REQUEST:  Error occured while attempting perform this operation.. the request may be incorrect. " + connection.getHeaderField("error");
 492             }
 493             LOGGER.error(response);
 494         } else {
 495             response = XACMLErrorConstants.ERROR_DATA_ISSUE
 496                     + "BAD REQUEST:  Error occured while attempting perform this operation.. the request may be incorrect.";
 497             LOGGER.error(response);
 498         }
 499         return response;
 500     }
 501
 502     private String checkParameter(String[] parameters, String fullURL) {
 503         if (parameters != null && parameters.length > 0) {
 504             String queryString = "";
 505             for (String p : parameters) {
 506                 queryString += "&" + p;
 507                 if (p.equalsIgnoreCase("operation=post")) {
 508                     requestMethod = "POST";
 509                 } else if (p.equalsIgnoreCase("operation=delete")) {
 510                     requestMethod = "DELETE";
 511                     operation = "delete";
 512                 } else if (p.equalsIgnoreCase("operation=get")) {
 513                     requestMethod = "GET";
 514                     operation = "get";
 515                 } else if (p.equalsIgnoreCase("operation=put")||p.equalsIgnoreCase("operation=create")
 516                         ||p.equalsIgnoreCase("operation=update")||p.equalsIgnoreCase("operation=createDictionary")){
 517                         requestMethod = "PUT";
 518                     if (p.equalsIgnoreCase("operation=create")) {
 519                         operation = "create";
 520                     } else if (p.equalsIgnoreCase("operation=update")) {
 521                         operation = "update";
 522                     } else if (p.equalsIgnoreCase("operation=createDictionary")){
 523                                                 operation = "createDictionary";
 524                                         }
 525                 }else if (p.equalsIgnoreCase("importService=MICROSERVICE")||p.equalsIgnoreCase("importService=BRMSPARAM")){
 526                         requestMethod = "PUT";
 527                 }
 528             }
 529             fullURL += "?" + queryString.substring(1);
 530         }
 531         return fullURL;
 532     }
 533
 534         public StdPDPPolicy pushPolicy(String policyScope, String filePrefix,
 535                         String policyName, String clientScope, String pdpGroup,
 536                         UUID requestID) throws PolicyException {
 537                 String json = "{ "
 538                                 + "\"apiflag\": \"api\","
 539                                 + "\"policyScope\": \""+policyScope+"\","
 540                                 + "\"filePrefix\": \""+filePrefix+"\","
 541                                 + "\"policyName\": \""+policyName+"\","
 542                                 + "\"clientScope\": \""+clientScope+"\","
 543                                 + "\"pdpGroup\": \""+pdpGroup+"\"}";
 544         //String response = null;
 545         HttpURLConnection connection = null;
 546         responseCode = 0;
 547         if (paps == null || paps.isEmpty()) {
 548             String message = XACMLErrorConstants.ERROR_DATA_ISSUE + "PAPs List is Empty.";
 549             LOGGER.error(message);
 550             throw new PolicyException(message);
 551         }
 552         int papsCount = 0;
 553         boolean connected = false;
 554         while (papsCount < paps.size()) {
 555             try {
 556                 String fullURL = getPAP();
 557                 fullURL = (fullURL.endsWith("/"))? fullURL+"onap/pushPolicy" : fullURL+"/onap/pushPolicy";
 558                 URL url = new URL(fullURL);
 559                 LOGGER.debug("--- Sending Request to PAP : "+ url.toString() + " ---");
 560                 // Open the connection
 561                 connection = (HttpURLConnection) url.openConnection();
 562                 // Setting Content-Type
 563                 connection.setRequestProperty("Content-Type","application/json");
 564                 // Adding Authorization
 565                 connection.setRequestProperty("Authorization", "Basic "+ getPAPEncoding());
 566                 connection.setRequestProperty("Environment", environment);
 567                 connection.setRequestProperty("ClientScope", clientScope);
 568                 // set the method and headers
 569                 connection.setRequestMethod("POST");
 570                 connection.setUseCaches(false);
 571                 connection.setInstanceFollowRedirects(false);
 572                 connection.setDoOutput(true);
 573                 // Adding RequestID
 574                 if (requestID == null) {
 575                     requestID = UUID.randomUUID();
 576                     LOGGER.info("No request ID provided, sending generated ID: "
 577                             + requestID.toString());
 578                 } else {
 579                     LOGGER.info("Using provided request ID: "
 580                             + requestID.toString());
 581                 }
 582                 connection.setRequestProperty("X-ECOMP-RequestID",
 583                         requestID.toString());
 584                 // DO the connect
 585                 try (OutputStream os = connection.getOutputStream()) {
 586                     int count = IOUtils.copy(new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8)), os);
 587                     if (LOGGER.isDebugEnabled()) {
 588                         LOGGER.debug("copied to output, bytes=" + count);
 589                     }
 590                 }
 591                 connection.connect();
 592                 responseCode = connection.getResponseCode();
 593                 // If Connected to PAP then break from the loop and continue
 594                 // with the Request
 595                 if (connection.getResponseCode() > 0 || junit) {
 596                     connected = true;
 597                     break;
 598                 } else {
 599                     LOGGER.debug(XACMLErrorConstants.ERROR_PERMISSIONS+ "PAP Response Code : "  + connection.getResponseCode());
 600                     rotatePAPList();
 601                 }
 602             } catch (Exception e) {
 603                 // This means that the PAP is not working
 604                 if (junit) {
 605                     connected = true;
 606                     break;
 607                 }
 608                 LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR
 609                         + "PAP connection Error : " + e);
 610                 rotatePAPList();
 611             }
 612             papsCount++;
 613         }
 614         if (connected) {
 615             // Read the Response
 616             LOGGER.debug("connected to the PAP : " + getPAP());
 617             LOGGER.debug("--- Response: ---");
 618             if(connection != null){
 619                 Map<String, List<String>> headers = connection.getHeaderFields();
 620                 for (String key : headers.keySet()) {
 621                     LOGGER.debug("Header :" + key + "  Value: " + headers.get(key));
 622                 }
 623                 try {
 624                     if(responseCode==202){
 625                         StdPDPPolicy policy = (StdPDPPolicy) new ObjectInputStream(connection.getInputStream()).readObject();
 626                         return policy;
 627                     }
 628                 } catch (IOException | ClassNotFoundException e) {
 629                     LOGGER.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
 630                     throw new PolicyException(
 631                             XACMLErrorConstants.ERROR_SYSTEM_ERROR
 632                                     + "Decoding the result ", e);
 633                 }
 634             }
 635             return null;
 636         } else {
 637             return null;
 638         }
 639     }
 640 }