POLICY-SDK-APP/src/main/java/org/onap/policy/controller/CreateBRMSParamController.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP Policy Engine
   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.policy.controller;
  22
  23 import java.io.PrintWriter;
  24 import java.util.ArrayList;
  25 import java.util.Arrays;
  26 import java.util.HashMap;
  27 import java.util.Iterator;
  28 import java.util.LinkedHashMap;
  29 import java.util.List;
  30 import java.util.Map;
  31 import java.util.Set;
  32 import java.util.regex.Matcher;
  33 import java.util.regex.Pattern;
  34
  35 import javax.servlet.http.HttpServletRequest;
  36 import javax.servlet.http.HttpServletResponse;
  37 import javax.xml.bind.JAXBElement;
  38
  39 import org.json.JSONObject;
  40 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  41 import org.onap.policy.common.logging.flexlogger.Logger;
  42 import org.onap.policy.rest.adapter.PolicyRestAdapter;
  43 import org.onap.policy.rest.dao.CommonClassDao;
  44 import org.onap.policy.rest.jpa.BRMSParamTemplate;
  45 import org.onap.policy.rest.jpa.PolicyEntity;
  46 import org.onap.policy.xacml.api.XACMLErrorConstants;
  47 import org.openecomp.portalsdk.core.controller.RestrictedBaseController;
  48 import org.springframework.beans.factory.annotation.Autowired;
  49 import org.springframework.stereotype.Controller;
  50 import org.springframework.web.bind.annotation.RequestMapping;
  51
  52 import com.fasterxml.jackson.databind.DeserializationFeature;
  53 import com.fasterxml.jackson.databind.JsonNode;
  54 import com.fasterxml.jackson.databind.ObjectMapper;
  55
  56 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AdviceExpressionType;
  57 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AdviceExpressionsType;
  58 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AllOfType;
  59 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AnyOfType;
  60 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeAssignmentExpressionType;
  61 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeDesignatorType;
  62 import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeValueType;
  63 import oasis.names.tc.xacml._3_0.core.schema.wd_17.MatchType;
  64 import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType;
  65 import oasis.names.tc.xacml._3_0.core.schema.wd_17.RuleType;
  66 import oasis.names.tc.xacml._3_0.core.schema.wd_17.TargetType;
  67
  68 @Controller
  69 @RequestMapping("/")
  70 public class CreateBRMSParamController extends RestrictedBaseController {
  71         private static final Logger policyLogger = FlexLogger.getLogger(CreateBRMSParamController.class);
  72
  73         private static CommonClassDao commonClassDao;
  74
  75         public static CommonClassDao getCommonClassDao() {
  76                 return commonClassDao;
  77         }
  78
  79         public static void setCommonClassDao(CommonClassDao commonClassDao) {
  80                 CreateBRMSParamController.commonClassDao = commonClassDao;
  81         }
  82
  83         @Autowired
  84         private CreateBRMSParamController(CommonClassDao commonClassDao){
  85                 CreateBRMSParamController.commonClassDao = commonClassDao;
  86         }
  87
  88         public CreateBRMSParamController(){}
  89         protected PolicyRestAdapter policyAdapter = null;
  90
  91         private HashMap<String, String> dynamicLayoutMap;
  92
  93         private static String brmsTemplateVlaue = "<$%BRMSParamTemplate=";
  94         private static String string = "String";
  95
  96
  97         @RequestMapping(value={"/policyController/getBRMSTemplateData.htm"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
  98         public void getBRMSParamPolicyRuleData(HttpServletRequest request, HttpServletResponse response){
  99                 try{
 100                         dynamicLayoutMap = new HashMap<>();
 101                         ObjectMapper mapper = new ObjectMapper();
 102                         mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 103                         JsonNode root = mapper.readTree(request.getReader());
 104                         String rule = findRule(root.get(PolicyController.getPolicydata()).toString().replaceAll("^\"|\"$", ""));
 105                         generateUI(rule);
 106                         response.setCharacterEncoding(PolicyController.getCharacterencoding());
 107                         response.setContentType(PolicyController.getContenttype());
 108                         request.setCharacterEncoding(PolicyController.getCharacterencoding());
 109
 110                         PrintWriter out = response.getWriter();
 111                         String responseString = mapper.writeValueAsString(dynamicLayoutMap);
 112                         JSONObject j = new JSONObject("{policyData: " + responseString + "}");
 113                         out.write(j.toString());
 114                 }catch(Exception e){
 115                         policyLogger.error("Exception Occured while getting BRMS Rule data" , e);
 116                 }
 117         }
 118
 119         protected String findRule(String ruleTemplate) {
 120                 List<Object> datas = commonClassDao.getDataById(BRMSParamTemplate.class, "ruleName", ruleTemplate);
 121                 if(datas != null && !datas.isEmpty()){
 122                         BRMSParamTemplate  bRMSParamTemplate = (BRMSParamTemplate) datas.get(0);
 123                         return bRMSParamTemplate.getRule();
 124                 }
 125                 return null;
 126         }
 127
 128         protected void generateUI(String rule) {
 129                 if(rule!=null){
 130                         try {
 131                                 StringBuilder params = new StringBuilder("");
 132                                 Boolean flag = false;
 133                                 Boolean comment = false;
 134                                 String lines[] = rule.split("\n");
 135                                 for(String line : lines){
 136                                         if (line.isEmpty() || line.startsWith("//")) {
 137                                                 continue;
 138                                         }
 139                                         if (line.startsWith("/*")) {
 140                                                 comment = true;
 141                                                 continue;
 142                                         }
 143                                         if (line.contains("//")) {
 144                                                 line = line.split("\\/\\/")[0];
 145                                         }
 146                                         if (line.contains("/*")) {
 147                                                 comment = true;
 148                                                 if (line.contains("*/")) {
 149                                                         try {
 150                                                                 comment = false;
 151                                                                 line = line.split("\\/\\*")[0]
 152                                                                                 + line.split("\\*\\/")[1].replace("*/", "");
 153                                                         } catch (Exception e) {
 154                                                                 policyLogger.info("Just for Logging"+e);
 155                                                                 line = line.split("\\/\\*")[0];
 156                                                         }
 157                                                 } else {
 158                                                         line = line.split("\\/\\*")[0];
 159                                                 }
 160                                         }
 161                                         if (line.contains("*/")) {
 162                                                 comment = false;
 163                                                 try {
 164                                                         line = line.split("\\*\\/")[1].replace("*/", "");
 165                                                 } catch (Exception e) {
 166                                                         policyLogger.info("Just for Logging"+e);
 167                                                         line = "";
 168                                                 }
 169                                         }
 170                                         if (comment) {
 171                                                 continue;
 172                                         }
 173                                         if (flag) {
 174                                                 params.append(line);
 175                                         }
 176                                         if (line.contains("declare Params")) {
 177                                                 params.append(line);
 178                                                 flag = true;
 179                                         }
 180                                         if (line.contains("end") && flag) {
 181                                                 break;
 182                                         }
 183                                 }
 184                                 params = new StringBuilder(params.toString().replace("declare Params", "").replace("end", "").replaceAll("\\s+", ""));
 185                                 String[] components = params.toString().split(":");
 186                                 String caption = "";
 187                                 for (int i = 0; i < components.length; i++) {
 188                                         String type = "";
 189                                         if (i == 0) {
 190                                                 caption = components[i];
 191                                         }
 192                                         if("".equals(caption)){
 193                                                 break;
 194                                         }
 195                                         String nextComponent = "";
 196                                         try {
 197                                                 nextComponent = components[i + 1];
 198                                         } catch (Exception e) {
 199                                                 policyLogger.info("Just for Logging"+e);
 200                                                 nextComponent = components[i];
 201                                         }
 202                                         if (nextComponent.startsWith(string)) {
 203                                                 type = "String";
 204                                                 createField(caption, type);
 205                                                 caption = nextComponent.replace(string, "");
 206                                         } else if (nextComponent.startsWith("int")) {
 207                                                 type = "int";
 208                                                 createField(caption, type);
 209                                                 caption = nextComponent.replace("int", "");
 210                                         }
 211                                 }
 212                         } catch (Exception e) {
 213                                 policyLogger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
 214                         }
 215                 }
 216         }
 217
 218         private void createField(String caption, String type) {
 219                 dynamicLayoutMap.put(caption, type);
 220         }
 221
 222         /*
 223          * When the User Click Edit or View Policy the following method will get invoked for setting the data to PolicyRestAdapter.
 224          * Which is used to bind the data in GUI
 225          */
 226         public void prePopulateBRMSParamPolicyData(PolicyRestAdapter policyAdapter, PolicyEntity entity) {
 227                 dynamicLayoutMap = new HashMap<>();
 228                 if (policyAdapter.getPolicyData() instanceof PolicyType) {
 229                         PolicyType policy = (PolicyType) policyAdapter.getPolicyData();
 230                         policyAdapter.setOldPolicyFileName(policyAdapter.getPolicyName());
 231                         // policy name value is the policy name without any prefix and
 232                         // Extensions.
 233                         String policyNameValue = policyAdapter.getPolicyName().substring(policyAdapter.getPolicyName().indexOf("BRMS_Param_") + 11);
 234                         if (policyLogger.isDebugEnabled()) {
 235                                 policyLogger.debug("Prepopulating form data for BRMS RAW Policy selected:" + policyAdapter.getPolicyName());
 236                         }
 237                         policyAdapter.setPolicyName(policyNameValue);
 238                         String description = "";
 239                         try{
 240                                 description = policy.getDescription().substring(0, policy.getDescription().indexOf("@CreatedBy:"));
 241                         }catch(Exception e){
 242                                 policyLogger.info("Just for Logging"+e);
 243                                 description = policy.getDescription();
 244                         }
 245                         policyAdapter.setPolicyDescription(description);
 246                         setDataAdapterFromAdviceExpressions(policy, policyAdapter);
 247                         paramUIGenerate(policyAdapter, entity);
 248                         // Get the target data under policy.
 249                         policyAdapter.setDynamicLayoutMap(dynamicLayoutMap);
 250                         if(policyAdapter.getDynamicLayoutMap().size() > 0){
 251                                 LinkedHashMap<String,String> drlRule = new LinkedHashMap<>();
 252                                 for(Object keyValue: policyAdapter.getDynamicLayoutMap().keySet()){
 253                                         drlRule.put(keyValue.toString(), policyAdapter.getDynamicLayoutMap().get(keyValue));
 254                                 }
 255                                 policyAdapter.setRuleData(drlRule);
 256                         }
 257                         TargetType target = policy.getTarget();
 258                         if (target != null) {
 259                                 setDataToAdapterFromTarget(target, policyAdapter);
 260                         }
 261                 }
 262         }
 263
 264         private void setDataAdapterFromAdviceExpressions(PolicyType policy, PolicyRestAdapter policyAdapter){
 265                 ArrayList<Object> attributeList = new ArrayList<>();
 266                 // Set Attributes.
 267                 AdviceExpressionsType expressionTypes = ((RuleType)policy.getCombinerParametersOrRuleCombinerParametersOrVariableDefinition().get(0)).getAdviceExpressions();
 268                 for( AdviceExpressionType adviceExpression: expressionTypes.getAdviceExpression()){
 269                         for(AttributeAssignmentExpressionType attributeAssignment: adviceExpression.getAttributeAssignmentExpression()){
 270                                 if(attributeAssignment.getAttributeId().startsWith("key:")){
 271                                         Map<String, String> attribute = new HashMap<>();
 272                                         String key = attributeAssignment.getAttributeId().replace("key:", "");
 273                                         attribute.put("key", key);
 274                                         @SuppressWarnings("unchecked")
 275                                         JAXBElement<AttributeValueType> attributevalue = (JAXBElement<AttributeValueType>) attributeAssignment.getExpression();
 276                                         String value = (String) attributevalue.getValue().getContent().get(0);
 277                                         attribute.put("value", value);
 278                                         attributeList.add(attribute);
 279                                 }else if(attributeAssignment.getAttributeId().startsWith("dependencies:")){
 280                                         ArrayList<String> dependencies = new ArrayList<>(Arrays.asList(attributeAssignment.getAttributeId().replace("dependencies:", "").split(",")));
 281                                         if(dependencies.contains("")){
 282                                                 dependencies.remove("");
 283                                         }
 284                                         policyAdapter.setBrmsDependency(dependencies);
 285                                 }else if(attributeAssignment.getAttributeId().startsWith("controller:")){
 286                                         policyAdapter.setBrmsController(attributeAssignment.getAttributeId().replace("controller:", ""));
 287                                 }
 288                         }
 289                         policyAdapter.setAttributes(attributeList);
 290                 }
 291         }
 292
 293         private void setDataToAdapterFromTarget(TargetType target, PolicyRestAdapter policyAdapter){
 294                 // Under target we have AnyOFType
 295                 List<AnyOfType> anyOfList = target.getAnyOf();
 296                 if (anyOfList != null) {
 297                         Iterator<AnyOfType> iterAnyOf = anyOfList.iterator();
 298                         while (iterAnyOf.hasNext()) {
 299                                 AnyOfType anyOf = iterAnyOf.next();
 300                                 // Under AnyOFType we have AllOFType
 301                                 List<AllOfType> allOfList = anyOf.getAllOf();
 302                                 if (allOfList != null) {
 303                                         Iterator<AllOfType> iterAllOf = allOfList.iterator();
 304                                         while (iterAllOf.hasNext()) {
 305                                                 AllOfType allOf = iterAllOf.next();
 306                                                 // Under AllOFType we have Match
 307                                                 List<MatchType> matchList = allOf.getMatch();
 308                                                 if (matchList != null) {
 309                                                         setDataToAdapterFromMatchList(matchList, policyAdapter);
 310                                                 }
 311                                         }
 312                                 }
 313                         }
 314                 }
 315         }
 316
 317         private void setDataToAdapterFromMatchList(List<MatchType> matchList, PolicyRestAdapter policyAdapter){
 318                 Iterator<MatchType> iterMatch = matchList.iterator();
 319                 while (iterMatch.hasNext()) {
 320                         MatchType match = iterMatch.next();
 321                         //
 322                         // Under the match we have attribute value and
 323                         // attributeDesignator. So,finally down to the actual attribute.
 324                         //
 325                         AttributeValueType attributeValue = match.getAttributeValue();
 326                         String value = (String) attributeValue.getContent().get(0);
 327                         AttributeDesignatorType designator = match.getAttributeDesignator();
 328                         String attributeId = designator.getAttributeId();
 329
 330                         if ("RiskType".equals(attributeId)){
 331                                 policyAdapter.setRiskType(value);
 332                         }
 333                         if ("RiskLevel".equals(attributeId)){
 334                                 policyAdapter.setRiskLevel(value);
 335                         }
 336                         if ("guard".equals(attributeId)){
 337                                 policyAdapter.setGuard(value);
 338                         }
 339                         if ("TTLDate".equals(attributeId) && !value.contains("NA")){
 340                                 String newDate = convertDate(value, true);
 341                                 policyAdapter.setTtlDate(newDate);
 342                         }
 343                 }
 344         }
 345
 346         private String convertDate(String dateTTL, boolean portalType) {
 347                 String formateDate = null;
 348                 String[] date;
 349                 String[] parts;
 350
 351                 if (portalType){
 352                         parts = dateTTL.split("-");
 353                         formateDate = parts[2] + "-" + parts[1] + "-" + parts[0] + "T05:00:00.000Z";
 354                 } else {
 355                         date  = dateTTL.split("T");
 356                         parts = date[0].split("-");
 357                         formateDate = parts[2] + "-" + parts[1] + "-" + parts[0];
 358                 }
 359                 return formateDate;
 360         }
 361         // This method generates the UI from rule configuration
 362         public void paramUIGenerate(PolicyRestAdapter policyAdapter, PolicyEntity entity) {
 363                 String data = entity.getConfigurationData().getConfigBody();
 364                 if(data != null){
 365                         try {
 366                                 StringBuilder params = new StringBuilder("");
 367                                 Boolean flag = false;
 368                                 Boolean comment = false;
 369                                 for (String line : data.split("\n")) {
 370                                         if (line.isEmpty() || line.startsWith("//")) {
 371                                                 continue;
 372                                         }
 373                                         if(line.contains(brmsTemplateVlaue)){
 374                                                 String value = line.substring(line.indexOf("<$%"),line.indexOf("%$>"));
 375                                                 value = value.replace(brmsTemplateVlaue, "");
 376                                                 policyAdapter.setRuleName(value);
 377                                         }
 378                                         if (line.startsWith("/*")) {
 379                                                 comment = true;
 380                                                 continue;
 381                                         }
 382                                         if ((line.contains("//"))&&(!(line.contains("http://") || line.contains("https://")))){
 383                                                 line = line.split("\\/\\/")[0];
 384                                         }
 385                                         if (line.contains("/*")) {
 386                                                 comment = true;
 387                                                 if (line.contains("*/")) {
 388                                                         try {
 389                                                                 comment = false;
 390                                                                 line = line.split("\\/\\*")[0]
 391                                                                                 + line.split("\\*\\/")[1].replace(
 392                                                                                                 "*/", "");
 393                                                         } catch (Exception e) {
 394                                                                 policyLogger.info("Just for Logging"+e);
 395                                                                 line = line.split("\\/\\*")[0];
 396                                                         }
 397                                                 } else {
 398                                                         line = line.split("\\/\\*")[0];
 399                                                 }
 400                                         }
 401                                         if (line.contains("*/")) {
 402                                                 comment = false;
 403                                                 try {
 404                                                         line = line.split("\\*\\/")[1]
 405                                                                         .replace("*/", "");
 406                                                 } catch (Exception e) {
 407                                                         policyLogger.info("Just for Logging"+e);
 408                                                         line = "";
 409                                                 }
 410                                         }
 411                                         if (comment) {
 412                                                 continue;
 413                                         }
 414                                         if (flag) {
 415                                                 params.append(line);
 416                                         }
 417                                         if (line.contains("rule") && line.contains(".Params\"")) {
 418                                                 params.append(line);
 419                                                 flag = true;
 420                                         }
 421                                         if (line.contains("end") && flag) {
 422                                                 break;
 423                                         }
 424                                 }
 425                                 params = new StringBuilder(params.substring(params.indexOf(".Params\"")+ 8));
 426                                 params = new StringBuilder(params.toString().replaceAll("\\s+", "").replace("salience1000whenthenParamsparams=newParams();","")
 427                         .replace("insert(params);end", "")
 428                         .replace("params.set", ""));
 429                                 String[] components = params.toString().split("\\);");
 430                                 if(components!= null && components.length > 0){
 431                                         for (int i = 0; i < components.length; i++) {
 432                                                 String value = null;
 433                                                 components[i] = components[i]+")";
 434                                                 String caption = components[i].substring(0,
 435                                                                 components[i].indexOf('('));
 436                                                 caption = caption.substring(0, 1).toLowerCase() + caption.substring(1);
 437                                                 if (components[i].contains("(\"")) {
 438                                                         value = components[i]
 439                                                                         .substring(components[i].indexOf("(\""),
 440                                                                                         components[i].indexOf("\")"))
 441                                                                         .replace("(\"", "").replace("\")", "");
 442                                                 } else {
 443                                                         value = components[i]
 444                                                                         .substring(components[i].indexOf('('),
 445                                                                                         components[i].indexOf(')'))
 446                                                                         .replace("(", "").replace(")", "");
 447                                                 }
 448                                                 dynamicLayoutMap.put(caption, value);
 449
 450                                         }
 451                                 }
 452                         } catch (Exception e) {
 453                                 policyLogger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e.getMessage() + e);
 454                         }
 455                 }
 456
 457         }
 458
 459         // set View Rule
 460         @SuppressWarnings("unchecked")
 461         @RequestMapping(value={"/policyController/ViewBRMSParamPolicyRule.htm"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
 462         public void setViewRule(HttpServletRequest request, HttpServletResponse response){
 463                 try {
 464                         ObjectMapper mapper = new ObjectMapper();
 465                         mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 466                         JsonNode root = mapper.readTree(request.getReader());
 467                         PolicyRestAdapter policyData = mapper.readValue(root.get(PolicyController.getPolicydata()).get("policy").toString(), PolicyRestAdapter.class);
 468                         policyData.setDomainDir(root.get(PolicyController.getPolicydata()).get("model").get("name").toString().replace("\"", ""));
 469                         if(root.get(PolicyController.getPolicydata()).get("model").get("type").toString().replace("\"", "").equals(PolicyController.getFile())){
 470                                 policyData.setEditPolicy(true);
 471                         }
 472
 473                         String body = "";
 474
 475                         body = "/* Autogenerated Code Please Don't change/remove this comment section. This is for the UI purpose. \n\t " +
 476                                         brmsTemplateVlaue + policyData.getRuleName() + "%$> \n */ \n";
 477                         body = body + findRule((String) policyData.getRuleName()) + "\n";
 478                         StringBuilder generatedRule = new StringBuilder();
 479                         generatedRule.append("rule \""+ policyData.getDomainDir().replace("\\", ".") +".Config_BRMS_Param_" + policyData.getPolicyName()+".Params\" \n\tsalience 1000 \n\twhen\n\tthen\n\t\tParams params = new Params();");
 480
 481                         if(policyData.getRuleData().size() > 0){
 482                                 for(Object keyValue: policyData.getRuleData().keySet()){
 483                                         String key = keyValue.toString().substring(0, 1).toUpperCase() + keyValue.toString().substring(1);
 484                                         if (string.equals(keyValue)) {
 485                                                 generatedRule.append("\n\t\tparams.set"
 486                                                                 + key + "(\""
 487                                                                 + policyData.getRuleData().get(keyValue).toString() + "\");");
 488                                         } else {
 489                                                 generatedRule.append("\n\t\tparams.set"
 490                                                                 + key + "("
 491                                                                 + policyData.getRuleData().get(keyValue).toString() + ");");
 492                                         }
 493                                 }
 494                         }
 495                         generatedRule.append("\n\t\tinsert(params);\nend");
 496                         policyLogger.info("New rule generated with :" + generatedRule.toString());
 497                         body = body + generatedRule.toString();
 498                         // Expand the body.
 499                         Map<String,String> copyMap=new HashMap<>();
 500                         copyMap.putAll((Map<? extends String, ? extends String>) policyData.getRuleData());
 501                         copyMap.put("policyName", policyData.getDomainDir().replace("\\", ".") +".Config_BRMS_Param_" + policyData.getPolicyName());
 502                         copyMap.put("policyScope", policyData.getDomainDir().replace("\\", "."));
 503                         copyMap.put("policyVersion", "1");
 504                         //Finding all the keys in the Map data-structure.
 505                         Set<String> keySet= copyMap.keySet();
 506                         Iterator<String> iterator = keySet.iterator();
 507                         Pattern p;
 508                         Matcher m;
 509                         while(iterator.hasNext()) {
 510                                 //Converting the first character of the key into a lower case.
 511                                 String input= iterator.next();
 512                                 String output  = Character.toLowerCase(input.charAt(0)) +
 513                                                 (input.length() > 1 ? input.substring(1) : "");
 514                                 //Searching for a pattern in the String using the key.
 515                                 p=Pattern.compile("\\$\\{"+output+"\\}");
 516                                 m=p.matcher(body);
 517                                 //Replacing the value with the inputs provided by the user in the editor.
 518                                 body=m.replaceAll(copyMap.get(input));
 519                         }
 520                         response.setCharacterEncoding("UTF-8");
 521                         response.setContentType("application / json");
 522                         request.setCharacterEncoding("UTF-8");
 523
 524                         PrintWriter out = response.getWriter();
 525                         String responseString = mapper.writeValueAsString(body);
 526                         JSONObject j = new JSONObject("{policyData: " + responseString + "}");
 527                         out.write(j.toString());
 528                 } catch (Exception e) {
 529                         policyLogger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
 530                 }
 531         }
 532 }