More sonar cleanup and line consolidation
[policy/engine.git] / POLICY-SDK-APP / src / main / java / org / onap / policy / controller / CreateBRMSParamController.java
index 4dc4542..fa515b2 100644 (file)
@@ -2,14 +2,16 @@
  * ============LICENSE_START=======================================================
  * ONAP Policy Engine
  * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Modified Copyright (C) 2018 Samsung Electronics Co., Ltd.
+ * Modifications Copyright (C) 2019 Bell Canada
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 
 package org.onap.policy.controller;
 
-import java.io.PrintWriter;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Objects;
 import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.xml.bind.JAXBElement;
 
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AdviceExpressionType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AdviceExpressionsType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AnyOfType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeAssignmentExpressionType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeDesignatorType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeValueType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.MatchType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.RuleType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.TargetType;
+
+import org.apache.commons.collections.CollectionUtils;
 import org.json.JSONObject;
 import org.onap.policy.common.logging.flexlogger.FlexLogger;
 import org.onap.policy.common.logging.flexlogger.Logger;
@@ -44,475 +65,483 @@ import org.onap.policy.rest.dao.CommonClassDao;
 import org.onap.policy.rest.jpa.BRMSParamTemplate;
 import org.onap.policy.rest.jpa.PolicyEntity;
 import org.onap.policy.xacml.api.XACMLErrorConstants;
-import org.openecomp.portalsdk.core.controller.RestrictedBaseController;
+import org.onap.portalsdk.core.controller.RestrictedBaseController;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
-
-import com.fasterxml.jackson.databind.DeserializationFeature;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AdviceExpressionType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AdviceExpressionsType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AllOfType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AnyOfType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeAssignmentExpressionType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeDesignatorType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeValueType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.MatchType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.RuleType;
-import oasis.names.tc.xacml._3_0.core.schema.wd_17.TargetType;
+import org.springframework.web.bind.annotation.RequestMethod;
 
 @Controller
 @RequestMapping("/")
 public class CreateBRMSParamController extends RestrictedBaseController {
-       private static final Logger policyLogger = FlexLogger.getLogger(CreateBRMSParamController.class);
-
-       private static CommonClassDao commonClassDao;
-
-       public static CommonClassDao getCommonClassDao() {
-               return commonClassDao;
-       }
-
-       public static void setCommonClassDao(CommonClassDao commonClassDao) {
-               CreateBRMSParamController.commonClassDao = commonClassDao;
-       }
-       
-       @Autowired
-       private CreateBRMSParamController(CommonClassDao commonClassDao){
-               CreateBRMSParamController.commonClassDao = commonClassDao;
-       }
-
-       public CreateBRMSParamController(){}
-       protected PolicyRestAdapter policyAdapter = null; 
-
-       private HashMap<String, String> dynamicLayoutMap;
-       
-       private static String brmsTemplateVlaue = "<$%BRMSParamTemplate=";
-       private static String string = "String";
-
-
-       @RequestMapping(value={"/policyController/getBRMSTemplateData.htm"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-       public void getBRMSParamPolicyRuleData(HttpServletRequest request, HttpServletResponse response){
-               try{
-                       dynamicLayoutMap = new HashMap<>();
-                       ObjectMapper mapper = new ObjectMapper();
-                       mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
-                       JsonNode root = mapper.readTree(request.getReader());
-                       String rule = findRule(root.get(PolicyController.getPolicydata()).toString().replaceAll("^\"|\"$", ""));
-                       generateUI(rule);
-                       response.setCharacterEncoding(PolicyController.getCharacterencoding());
-                       response.setContentType(PolicyController.getContenttype());
-                       request.setCharacterEncoding(PolicyController.getCharacterencoding());
-
-                       PrintWriter out = response.getWriter();
-                       String responseString = mapper.writeValueAsString(dynamicLayoutMap);
-                       JSONObject j = new JSONObject("{policyData: " + responseString + "}");
-                       out.write(j.toString());
-               }catch(Exception e){
-                       policyLogger.error("Exception Occured while getting BRMS Rule data" , e);
-               }
-       }
-
-       protected String findRule(String ruleTemplate) {
-               List<Object> datas = commonClassDao.getDataById(BRMSParamTemplate.class, "ruleName", ruleTemplate);
-               if(datas != null && !datas.isEmpty()){
-                       BRMSParamTemplate  bRMSParamTemplate = (BRMSParamTemplate) datas.get(0);
-                       return bRMSParamTemplate.getRule();
-               }
-               return null;
-       }
-
-       protected void generateUI(String rule) {
-               if(rule!=null){
-                       try {
-                               StringBuilder params = new StringBuilder("");
-                               Boolean flag = false;
-                               Boolean comment = false;
-                               String lines[] = rule.split("\n");
-                               for(String line : lines){
-                                       if (line.isEmpty() || line.startsWith("//")) {
-                                               continue;
-                                       }
-                                       if (line.startsWith("/*")) {
-                                               comment = true;
-                                               continue;
-                                       }
-                                       if (line.contains("//")) {
-                                               line = line.split("\\/\\/")[0];
-                                       }
-                                       if (line.contains("/*")) {
-                                               comment = true;
-                                               if (line.contains("*/")) {
-                                                       try {
-                                                               comment = false;
-                                                               line = line.split("\\/\\*")[0]
-                                                                               + line.split("\\*\\/")[1].replace("*/", "");
-                                                       } catch (Exception e) {
-                                                               policyLogger.info("Just for Logging"+e);
-                                                               line = line.split("\\/\\*")[0];
-                                                       }
-                                               } else {
-                                                       line = line.split("\\/\\*")[0];
-                                               }
-                                       }
-                                       if (line.contains("*/")) {
-                                               comment = false;
-                                               try {
-                                                       line = line.split("\\*\\/")[1].replace("*/", "");
-                                               } catch (Exception e) {
-                                                       policyLogger.info("Just for Logging"+e);
-                                                       line = "";
-                                               }
-                                       }
-                                       if (comment) {
-                                               continue;
-                                       }
-                                       if (flag) {
-                                               params.append(line);
-                                       }
-                                       if (line.contains("declare PapParams")) {
-                                               params.append(line);
-                                               flag = true;
-                                       }
-                                       if (line.contains("end") && flag) {
-                                               break;
-                                       }
-                               }
-                               params = new StringBuilder(params.toString().replace("declare PapParams", "").replace("end", "").replaceAll("\\s+", ""));
-                               String[] components = params.toString().split(":");
-                               String caption = "";
-                               for (int i = 0; i < components.length; i++) {
-                                       String type = "";
-                                       if (i == 0) {
-                                               caption = components[i];
-                                       }
-                                       if("".equals(caption)){
-                                               break;
-                                       }
-                                       String nextComponent = "";
-                                       try {
-                                               nextComponent = components[i + 1];
-                                       } catch (Exception e) {
-                                               policyLogger.info("Just for Logging"+e);
-                                               nextComponent = components[i];
-                                       }
-                                       if (nextComponent.startsWith(string)) {
-                                               type = "String";
-                                               createField(caption, type);
-                                               caption = nextComponent.replace(string, "");
-                                       } else if (nextComponent.startsWith("int")) {
-                                               type = "int";
-                                               createField(caption, type);
-                                               caption = nextComponent.replace("int", "");
-                                       }
-                               }
-                       } catch (Exception e) {
-                               policyLogger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
-                       }
-               }
-       }
-       
-       private void createField(String caption, String type) {
-               dynamicLayoutMap.put(caption, type);
-       }
-
-       /*
-        * When the User Click Edit or View Policy the following method will get invoked for setting the data to PolicyRestAdapter.
-        * Which is used to bind the data in GUI
-        */
-       public void prePopulateBRMSParamPolicyData(PolicyRestAdapter policyAdapter, PolicyEntity entity) {
-               dynamicLayoutMap = new HashMap<>();
-               if (policyAdapter.getPolicyData() instanceof PolicyType) {
-                       PolicyType policy = (PolicyType) policyAdapter.getPolicyData();
-                       policyAdapter.setOldPolicyFileName(policyAdapter.getPolicyName());
-                       // policy name value is the policy name without any prefix and
-                       // Extensions.
-                       String policyNameValue = policyAdapter.getPolicyName().substring(policyAdapter.getPolicyName().indexOf("BRMS_Param_") + 11);
-                       if (policyLogger.isDebugEnabled()) {
-                               policyLogger.debug("Prepopulating form data for BRMS RAW Policy selected:" + policyAdapter.getPolicyName());
-                       }
-                       policyAdapter.setPolicyName(policyNameValue);
-                       String description = "";
-                       try{
-                               description = policy.getDescription().substring(0, policy.getDescription().indexOf("@CreatedBy:"));
-                       }catch(Exception e){
-                               policyLogger.info("Just for Logging"+e);
-                               description = policy.getDescription();
-                       }
-                       policyAdapter.setPolicyDescription(description);
-                       setDataAdapterFromAdviceExpressions(policy, policyAdapter);
-                       paramUIGenerate(policyAdapter, entity);
-                       // Get the target data under policy.
-                       policyAdapter.setDynamicLayoutMap(dynamicLayoutMap);
-                       if(policyAdapter.getDynamicLayoutMap().size() > 0){
-                               LinkedHashMap<String,String> drlRule = new LinkedHashMap<>();
-                               for(Object keyValue: policyAdapter.getDynamicLayoutMap().keySet()){
-                                       drlRule.put(keyValue.toString(), policyAdapter.getDynamicLayoutMap().get(keyValue));
-                               }
-                               policyAdapter.setRuleData(drlRule);
-                       }       
-                       TargetType target = policy.getTarget();
-                       if (target != null) {
-                               setDataToAdapterFromTarget(target, policyAdapter);
-                       }
-               }               
-       }
-       
-       private void setDataAdapterFromAdviceExpressions(PolicyType policy, PolicyRestAdapter policyAdapter){
-               ArrayList<Object> attributeList = new ArrayList<>();
-               // Set Attributes. 
-               AdviceExpressionsType expressionTypes = ((RuleType)policy.getCombinerParametersOrRuleCombinerParametersOrVariableDefinition().get(0)).getAdviceExpressions();
-               for( AdviceExpressionType adviceExpression: expressionTypes.getAdviceExpression()){
-                       for(AttributeAssignmentExpressionType attributeAssignment: adviceExpression.getAttributeAssignmentExpression()){
-                               if(attributeAssignment.getAttributeId().startsWith("key:")){
-                                       Map<String, String> attribute = new HashMap<>();
-                                       String key = attributeAssignment.getAttributeId().replace("key:", "");
-                                       attribute.put("key", key);
-                                       @SuppressWarnings("unchecked")
-                                       JAXBElement<AttributeValueType> attributevalue = (JAXBElement<AttributeValueType>) attributeAssignment.getExpression();
-                                       String value = (String) attributevalue.getValue().getContent().get(0);
-                                       attribute.put("value", value);
-                                       attributeList.add(attribute);
-                               }else if(attributeAssignment.getAttributeId().startsWith("dependencies:")){
-                                       ArrayList<String> dependencies = new ArrayList<>(Arrays.asList(attributeAssignment.getAttributeId().replace("dependencies:", "").split(",")));
-                                       if(dependencies.contains("")){
-                                               dependencies.remove("");
-                                       }
-                                       policyAdapter.setBrmsDependency(dependencies);
-                               }else if(attributeAssignment.getAttributeId().startsWith("controller:")){
-                                       policyAdapter.setBrmsController(attributeAssignment.getAttributeId().replace("controller:", ""));
-                               }
-                       }
-                       policyAdapter.setAttributes(attributeList);
-               }
-       }
-       
-       private void setDataToAdapterFromTarget(TargetType target, PolicyRestAdapter policyAdapter){
-               // Under target we have AnyOFType
-               List<AnyOfType> anyOfList = target.getAnyOf();
-               if (anyOfList != null) {
-                       Iterator<AnyOfType> iterAnyOf = anyOfList.iterator();
-                       while (iterAnyOf.hasNext()) {
-                               AnyOfType anyOf = iterAnyOf.next();
-                               // Under AnyOFType we have AllOFType
-                               List<AllOfType> allOfList = anyOf.getAllOf();
-                               if (allOfList != null) {
-                                       Iterator<AllOfType> iterAllOf = allOfList.iterator();
-                                       while (iterAllOf.hasNext()) {
-                                               AllOfType allOf = iterAllOf.next();
-                                               // Under AllOFType we have Match
-                                               List<MatchType> matchList = allOf.getMatch();
-                                               if (matchList != null) {
-                                                       setDataToAdapterFromMatchList(matchList, policyAdapter);
-                                               }
-                                       }
-                               }
-                       }
-               }
-       }
-       
-       private void setDataToAdapterFromMatchList(List<MatchType> matchList, PolicyRestAdapter policyAdapter){
-               Iterator<MatchType> iterMatch = matchList.iterator();
-               while (iterMatch.hasNext()) {
-                       MatchType match = iterMatch.next();
-                       //
-                       // Under the match we have attribute value and
-                       // attributeDesignator. So,finally down to the actual attribute.
-                       //
-                       AttributeValueType attributeValue = match.getAttributeValue();
-                       String value = (String) attributeValue.getContent().get(0);
-                       AttributeDesignatorType designator = match.getAttributeDesignator();
-                       String attributeId = designator.getAttributeId();
-
-                       if ("RiskType".equals(attributeId)){
-                               policyAdapter.setRiskType(value);
-                       }
-                       if ("RiskLevel".equals(attributeId)){
-                               policyAdapter.setRiskLevel(value);
-                       }
-                       if ("guard".equals(attributeId)){
-                               policyAdapter.setGuard(value);
-                       }
-                       if ("TTLDate".equals(attributeId) && !value.contains("NA")){
-                               PolicyController controller = new PolicyController();
-                               String newDate = controller.convertDate(value);
-                               policyAdapter.setTtlDate(newDate);
-                       }
-               }
-       }
-
-       // This method generates the UI from rule configuration
-       public void paramUIGenerate(PolicyRestAdapter policyAdapter, PolicyEntity entity) {
-               String data = entity.getConfigurationData().getConfigBody();
-               if(data != null){
-                       try {   
-                               StringBuilder params = new StringBuilder("");
-                               Boolean flag = false;
-                               Boolean comment = false;
-                               for (String line : data.split("\n")) {
-                                       if (line.isEmpty() || line.startsWith("//")) {
-                                               continue;
-                                       }
-                                       if(line.contains(brmsTemplateVlaue)){
-                                               String value = line.substring(line.indexOf("<$%"),line.indexOf("%$>"));
-                                               value = value.replace(brmsTemplateVlaue, "");
-                                               policyAdapter.setRuleName(value);
-                                       }
-                                       if (line.startsWith("/*")) {
-                                               comment = true;
-                                               continue;
-                                       }
-                                       if ((line.contains("//"))&&(!(line.contains("http://") || line.contains("https://")))){
-                                               line = line.split("\\/\\/")[0];
-                                       }
-                                       if (line.contains("/*")) {
-                                               comment = true;
-                                               if (line.contains("*/")) {
-                                                       try {
-                                                               comment = false;
-                                                               line = line.split("\\/\\*")[0]
-                                                                               + line.split("\\*\\/")[1].replace(
-                                                                                               "*/", "");
-                                                       } catch (Exception e) {
-                                                               policyLogger.info("Just for Logging"+e);
-                                                               line = line.split("\\/\\*")[0];
-                                                       }
-                                               } else {
-                                                       line = line.split("\\/\\*")[0];
-                                               }
-                                       }
-                                       if (line.contains("*/")) {
-                                               comment = false;
-                                               try {
-                                                       line = line.split("\\*\\/")[1]
-                                                                       .replace("*/", "");
-                                               } catch (Exception e) {
-                                                       policyLogger.info("Just for Logging"+e);
-                                                       line = "";
-                                               }
-                                       }
-                                       if (comment) {
-                                               continue;
-                                       }
-                                       if (flag) {
-                                               params.append(line);
-                                       }
-                                       if (line.contains("rule") && line.contains(".PapParams\"")) {
-                                               params.append(line);
-                                               flag = true;
-                                       }
-                                       if (line.contains("end") && flag) {
-                                               break;
-                                       }
-                               }
-                               params = new StringBuilder(params.substring(params.indexOf(".PapParams\"")+ 11));
-                               params = new StringBuilder(params.toString().replaceAll("\\s+", "").replace("salience1000whenthenPapParamsparams=newPapParams();","")
-                        .replace("insert(params);end", "")
-                        .replace("params.set", ""));
-                               String[] components = params.toString().split("\\);");
-                               if(components!= null && components.length > 0){
-                                       for (int i = 0; i < components.length; i++) {
-                                               String value = null;
-                                               components[i] = components[i]+")";
-                                               String caption = components[i].substring(0,
-                                                               components[i].indexOf('('));
-                                               caption = caption.substring(0, 1).toLowerCase() + caption.substring(1);
-                                               if (components[i].contains("(\"")) {
-                                                       value = components[i]
-                                                                       .substring(components[i].indexOf("(\""),
-                                                                                       components[i].indexOf("\")"))
-                                                                       .replace("(\"", "").replace("\")", "");
-                                               } else {
-                                                       value = components[i]
-                                                                       .substring(components[i].indexOf('('),
-                                                                                       components[i].indexOf(')'))
-                                                                       .replace("(", "").replace(")", "");
-                                               }
-                                               dynamicLayoutMap.put(caption, value);
-
-                                       }
-                               }
-                       } catch (Exception e) {
-                               policyLogger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e.getMessage() + e);
-                       } 
-               }
-               
-       }
-
-       // set View Rule
-       @SuppressWarnings("unchecked")
-       @RequestMapping(value={"/policyController/ViewBRMSParamPolicyRule.htm"}, method={org.springframework.web.bind.annotation.RequestMethod.POST})
-       public void setViewRule(HttpServletRequest request, HttpServletResponse response){
-               try {
-                       ObjectMapper mapper = new ObjectMapper();
-                       mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
-                       JsonNode root = mapper.readTree(request.getReader());
-                       PolicyRestAdapter policyData = mapper.readValue(root.get(PolicyController.getPolicydata()).get("policy").toString(), PolicyRestAdapter.class);
-                       policyData.setDomainDir(root.get(PolicyController.getPolicydata()).get("model").get("name").toString().replace("\"", ""));
-                       if(root.get(PolicyController.getPolicydata()).get("model").get("type").toString().replace("\"", "").equals(PolicyController.getFile())){
-                               policyData.setEditPolicy(true);
-                       }
-
-                       String body = "";
-
-                       body = "/* Autogenerated Code Please Don't change/remove this comment section. This is for the UI purpose. \n\t " +
-                                       brmsTemplateVlaue + policyData.getRuleName() + "%$> \n */ \n";
-                       body = body + findRule((String) policyData.getRuleName()) + "\n";
-                       StringBuilder generatedRule = new StringBuilder();
-                       generatedRule.append("rule \""+ policyData.getDomainDir().replace("\\", ".") +".Config_BRMS_Param_" + policyData.getPolicyName()+".PapParams\" \n\tsalience 1000 \n\twhen\n\tthen\n\t\tPapParams params = new PapParams();");
-
-                       if(policyData.getRuleData().size() > 0){ 
-                               for(Object keyValue: policyData.getRuleData().keySet()){ 
-                                       String key = keyValue.toString().substring(0, 1).toUpperCase() + keyValue.toString().substring(1); 
-                                       if (string.equals(keyValue)) { 
-                                               generatedRule.append("\n\t\tparams.set" 
-                                                               + key + "(\"" 
-                                                               + policyData.getRuleData().get(keyValue).toString() + "\");"); 
-                                       } else { 
-                                               generatedRule.append("\n\t\tparams.set" 
-                                                               + key + "(" 
-                                                               + policyData.getRuleData().get(keyValue).toString() + ");"); 
-                                       } 
-                               } 
-                       }
-                       generatedRule.append("\n\t\tinsert(params);\nend");
-                       policyLogger.info("New rule generated with :" + generatedRule.toString());
-                       body = body + generatedRule.toString();
-                       // Expand the body. 
-                       Map<String,String> copyMap=new HashMap<>();
-                       copyMap.putAll((Map<? extends String, ? extends String>) policyData.getRuleData());
-                       copyMap.put("policyName", policyData.getDomainDir().replace("\\", ".") +".Config_BRMS_Param_" + policyData.getPolicyName());
-                       copyMap.put("policyScope", policyData.getDomainDir().replace("\\", "."));
-                       copyMap.put("policyVersion", "1");
-                       //Finding all the keys in the Map data-structure.
-                       Set<String> keySet= copyMap.keySet();
-                       Iterator<String> iterator = keySet.iterator(); 
-                       Pattern p;
-                       Matcher m;
-                       while(iterator.hasNext()) {
-                               //Converting the first character of the key into a lower case. 
-                               String input= iterator.next();
-                               String output  = Character.toLowerCase(input.charAt(0)) +
-                                               (input.length() > 1 ? input.substring(1) : "");
-                               //Searching for a pattern in the String using the key. 
-                               p=Pattern.compile("\\$\\{"+output+"\\}");   
-                               m=p.matcher(body);
-                               //Replacing the value with the inputs provided by the user in the editor. 
-                               body=m.replaceAll(copyMap.get(input));
-                       }
-                       response.setCharacterEncoding("UTF-8");
-                       response.setContentType("application / json");
-                       request.setCharacterEncoding("UTF-8");
-
-                       PrintWriter out = response.getWriter();
-                       String responseString = mapper.writeValueAsString(body);
-                       JSONObject j = new JSONObject("{policyData: " + responseString + "}");
-                       out.write(j.toString());
-               } catch (Exception e) {
-                       policyLogger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
-               }       
-       }
+
+    private static final Logger policyLogger = FlexLogger.getLogger(CreateBRMSParamController.class);
+
+    private static CommonClassDao commonClassDao;
+
+    public static CommonClassDao getCommonClassDao() {
+        return commonClassDao;
+    }
+
+    public static void setCommonClassDao(CommonClassDao commonClassDao) {
+        CreateBRMSParamController.commonClassDao = commonClassDao;
+    }
+
+    @Autowired
+    private CreateBRMSParamController(CommonClassDao commonClassDao) {
+        CreateBRMSParamController.commonClassDao = commonClassDao;
+    }
+
+    public CreateBRMSParamController() {
+        // Empty constructor
+    }
+
+    protected PolicyRestAdapter policyAdapter = null;
+
+    private HashMap<String, String> dynamicLayoutMap;
+
+    private static String brmsTemplateVlaue = "<$%BRMSParamTemplate=";
+    private static String string = "String";
+
+    /**
+     * getBRMSParamPolicyRuleData.
+     *
+     * @param request HttpServletRequest
+     * @param response HttpServletResponse
+     */
+    @RequestMapping(value = {"/policyController/getBRMSTemplateData.htm"}, method = {RequestMethod.POST})
+    public void getBRMSParamPolicyRuleData(HttpServletRequest request, HttpServletResponse response) {
+        try {
+            dynamicLayoutMap = new HashMap<>();
+            ObjectMapper mapper = new ObjectMapper();
+            mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+            JsonNode root = mapper.readTree(request.getReader());
+            String rule = findRule(root.get(PolicyController.getPolicydata()).toString().replaceAll("^\"|\"$", ""));
+            generateUI(rule);
+            response.setCharacterEncoding(PolicyController.getCharacterencoding());
+            response.setContentType(PolicyController.getContenttype());
+            request.setCharacterEncoding(PolicyController.getCharacterencoding());
+
+            response.getWriter().write(new JSONObject("{policyData: " + mapper.writeValueAsString(dynamicLayoutMap)
+                + "}").toString());
+        } catch (Exception e) {
+            policyLogger.error("Exception Occured while getting BRMS Rule data", e);
+        }
+    }
+
+    private String findRule(String ruleTemplate) {
+        List<Object> datas = commonClassDao.getDataById(BRMSParamTemplate.class, "ruleName", ruleTemplate);
+        if (CollectionUtils.isNotEmpty(datas)) {
+            return ((BRMSParamTemplate) datas.get(0)).getRule();
+        }
+        return null;
+    }
+
+    private void generateUI(String rule) {
+        if (rule == null) {
+            return;
+        }
+        try {
+            processRule(rule);
+        } catch (Exception e) {
+            policyLogger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + e);
+        }
+
+    }
+
+    private void processRule(String rule) {
+        StringBuilder params = getParamsBuilderFromRule(rule);
+        params = new StringBuilder(
+                params.toString().replace("declare Params", "").replace("end", "").replaceAll("\\s+", ""));
+        String[] components = params.toString().split(":");
+        String caption = "";
+        for (int i = 0; i < components.length; i++) {
+            String type;
+            if (i == 0) {
+                caption = components[i];
+            }
+            if ("".equals(caption)) {
+                break;
+            }
+            String nextComponent;
+            try {
+                nextComponent = components[i + 1];
+            } catch (Exception e) {
+                policyLogger.info("Error when procesing rule: " + e);
+                nextComponent = components[i];
+            }
+            if (nextComponent.startsWith(string)) {
+                type = "String";
+                createField(caption, type);
+                caption = nextComponent.replace(string, "");
+            } else if (nextComponent.startsWith("int")) {
+                type = "int";
+                createField(caption, type);
+                caption = nextComponent.replace("int", "");
+            }
+        }
+    }
+
+    private StringBuilder getParamsBuilderFromRule(final String rule) {
+        StringBuilder params = new StringBuilder();
+        boolean flag = false;
+        boolean comment = false;
+        String[] lines = rule.split("\n");
+        for (String line : lines) {
+            if (line.isEmpty() || line.startsWith("//")) {
+                continue;
+            }
+            if (line.startsWith("/*")) {
+                comment = true;
+                continue;
+            }
+            if (line.contains("//")) {
+                line = splitSingleLineComment(line);
+            }
+            if (line.contains("/*")) {
+                comment = true;
+                if (line.contains("*/")) {
+                    comment = false;
+                    line = processMultiLineFullComment(line);
+                } else {
+                    line = splitMultiLineStartComment(line);
+                }
+            }
+            if (line.contains("*/")) {
+                comment = false;
+                line = processEndComment(line);
+            }
+            if (comment) {
+                continue;
+            }
+            if (flag) {
+                params.append(line);
+            }
+            if (line.contains("declare Params")) {
+                params.append(line);
+                flag = true;
+            }
+            if (line.contains("end") && flag) {
+                break;
+            }
+        }
+        return params;
+    }
+
+    private String splitMultiLineStartComment(String line) {
+        return line.split("\\/\\*")[0];
+    }
+
+    private String splitMultiLineEndComment(String line) {
+        return line.split("\\*\\/")[1].replace("*/", "");
+    }
+
+    private String splitSingleLineComment(String line) {
+        return line.split("\\/\\/")[0];
+    }
+
+    private void createField(String caption, String type) {
+        dynamicLayoutMap.put(caption, type);
+    }
+
+    /*
+     * When the User Click Edit or View Policy the following method will get invoked for setting the data to
+     * PolicyRestAdapter.
+     * Which is used to bind the data in GUI
+     */
+    public void prePopulateBRMSParamPolicyData(PolicyRestAdapter policyAdapter, PolicyEntity entity) {
+        dynamicLayoutMap = new HashMap<>();
+        if (policyAdapter.getPolicyData() instanceof PolicyType) {
+            PolicyType policy = (PolicyType) policyAdapter.getPolicyData();
+            policyAdapter.setOldPolicyFileName(policyAdapter.getPolicyName());
+            // policy name value is the policy name without any prefix and
+            // Extensions.
+            String policyNameValue =
+                    policyAdapter.getPolicyName().substring(policyAdapter.getPolicyName().indexOf("BRMS_Param_") + 11);
+            if (policyLogger.isDebugEnabled()) {
+                policyLogger
+                        .debug("Prepopulating form data for BRMS RAW Policy selected:" + policyAdapter.getPolicyName());
+            }
+            policyAdapter.setPolicyName(policyNameValue);
+            String description;
+            try {
+                description = policy.getDescription().substring(0, policy.getDescription().indexOf("@CreatedBy:"));
+            } catch (Exception e) {
+                policyLogger.info("Error getting description: " + e);
+                description = policy.getDescription();
+            }
+            policyAdapter.setPolicyDescription(description);
+            setDataAdapterFromAdviceExpressions(policy, policyAdapter);
+
+            // Generate Param UI
+            try {
+                paramUiGenerate(policyAdapter, entity);
+            } catch (Exception e) {
+                policyLogger.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e.getMessage() + e);
+            }
+
+            // Get the target data under policy.
+            policyAdapter.setDynamicLayoutMap(dynamicLayoutMap);
+            if (policyAdapter.getDynamicLayoutMap().size() > 0) {
+                LinkedHashMap<String, String> drlRule = policyAdapter.getDynamicLayoutMap().keySet().stream()
+                        .collect(Collectors.toMap(String::toString,
+                            keyValue -> policyAdapter.getDynamicLayoutMap().get(keyValue), (a, b) -> b,
+                                LinkedHashMap::new));
+                policyAdapter.setRuleData(drlRule);
+            }
+            TargetType target = policy.getTarget();
+            if (target != null) {
+                setDataToAdapterFromTarget(target, policyAdapter);
+            }
+        }
+    }
+
+    private void setDataAdapterFromAdviceExpressions(PolicyType policy, PolicyRestAdapter policyAdapter) {
+        ArrayList<Object> attributeList = new ArrayList<>();
+        // Set Attributes.
+        AdviceExpressionsType expressionTypes =
+                ((RuleType) policy.getCombinerParametersOrRuleCombinerParametersOrVariableDefinition().get(0))
+                        .getAdviceExpressions();
+        for (AdviceExpressionType adviceExpression : expressionTypes.getAdviceExpression()) {
+            for (AttributeAssignmentExpressionType attributeAssignment : adviceExpression
+                    .getAttributeAssignmentExpression()) {
+                if (attributeAssignment.getAttributeId().startsWith("key:")) {
+                    Map<String, String> attribute = new HashMap<>();
+                    String key = attributeAssignment.getAttributeId().replace("key:", "");
+                    attribute.put("key", key);
+                    @SuppressWarnings("unchecked")
+                    JAXBElement<AttributeValueType> attributeValue =
+                            (JAXBElement<AttributeValueType>) attributeAssignment.getExpression();
+                    String value = (String) attributeValue.getValue().getContent().get(0);
+                    attribute.put("value", value);
+                    attributeList.add(attribute);
+                } else if (attributeAssignment.getAttributeId().startsWith("dependencies:")) {
+                    ArrayList<String> dependencies = new ArrayList<>(Arrays
+                            .asList(attributeAssignment.getAttributeId().replace("dependencies:", "").split(",")));
+                    dependencies.remove("");
+                    policyAdapter.setBrmsDependency(dependencies);
+                } else if (attributeAssignment.getAttributeId().startsWith("controller:")) {
+                    policyAdapter.setBrmsController(attributeAssignment.getAttributeId().replace("controller:", ""));
+                }
+            }
+            policyAdapter.setAttributes(attributeList);
+        }
+    }
+
+    private void setDataToAdapterFromTarget(TargetType target, PolicyRestAdapter policyAdapter) {
+        // Under target we have AnyOFType
+        if (target.getAnyOf() == null) {
+            return;
+        }
+        target.getAnyOf().stream().map(AnyOfType::getAllOf).filter(Objects::nonNull).flatMap(Collection::stream)
+                .forEach(allOf -> setDataToAdapterFromMatchList(allOf.getMatch(), policyAdapter));
+    }
+
+    private void setDataToAdapterFromMatchList(List<MatchType> matchList, PolicyRestAdapter policyAdapter) {
+        if (matchList == null) {
+            return;
+        }
+        for (final MatchType match : matchList) {
+            //
+            // Under the match we have attribute value and
+            // attributeDesignator. So,finally down to the actual attribute.
+            //
+            AttributeValueType attributeValue = match.getAttributeValue();
+            String value = (String) attributeValue.getContent().get(0);
+            AttributeDesignatorType designator = match.getAttributeDesignator();
+            String attributeId = designator.getAttributeId();
+            if ("RiskType".equals(attributeId)) {
+                policyAdapter.setRiskType(value);
+            }
+            if ("RiskLevel".equals(attributeId)) {
+                policyAdapter.setRiskLevel(value);
+            }
+            if ("guard".equals(attributeId)) {
+                policyAdapter.setGuard(value);
+            }
+            if ("TTLDate".equals(attributeId) && !value.contains("NA")) {
+                PolicyController controller = new PolicyController();
+                String newDate = controller.convertDate(value);
+                policyAdapter.setTtlDate(newDate);
+            }
+        }
+    }
+
+    // This method generates the UI from rule configuration
+    private void paramUiGenerate(PolicyRestAdapter policyAdapter, PolicyEntity entity) {
+        String data = entity.getConfigurationData().getConfigBody();
+        if (data == null) {
+            return;
+        }
+        StringBuilder params = new StringBuilder();
+        boolean flag = false;
+        boolean comment = false;
+        for (String line : data.split("\n")) {
+            if (line.isEmpty() || line.startsWith("//")) {
+                continue;
+            }
+            if (line.contains(brmsTemplateVlaue)) {
+                String value = line.substring(line.indexOf("<$%"), line.indexOf("%$>"));
+                value = value.replace(brmsTemplateVlaue, "");
+                policyAdapter.setRuleName(value);
+            }
+            if (line.contains("<%$Values=")) {
+                String value = line.substring(line.indexOf("<%$"), line.indexOf("$%>"));
+                value = value.replaceAll("<%\\$Values=", "");
+                Arrays.stream(value.split(":\\|:")).map(keyValue -> keyValue.split(":-:"))
+                        .filter(pair -> pair.length > 0)
+                        .forEach(pair -> dynamicLayoutMap.put(pair[0], (pair.length > 1) ? pair[1] : ""));
+                return;
+            }
+            if (line.startsWith("/*")) {
+                comment = true;
+                continue;
+            }
+            if ((line.contains("//")) && (!(line.contains("http://") || line.contains("https://")))) {
+                line = splitSingleLineComment(line);
+            }
+            if (line.contains("/*")) {
+                comment = true;
+                if (line.contains("*/")) {
+                    comment = false;
+                    line = processMultiLineFullComment(line);
+                } else {
+                    line = splitMultiLineStartComment(line);
+                }
+            }
+            if (line.contains("*/")) {
+                comment = false;
+                line = processEndComment(line);
+            }
+            if (comment) {
+                continue;
+            }
+            if (flag) {
+                params.append(line);
+            }
+            if (line.contains("rule") && line.contains(".Params\"")) {
+                params.append(line);
+                flag = true;
+            }
+            if (line.contains("end") && flag) {
+                break;
+            }
+        }
+        params = new StringBuilder(params.substring(params.indexOf(".Params\"") + 11));
+        params = new StringBuilder(
+                params.toString().replaceAll("\\s+", "").replace("salience1000whenthenParamsparams=newParams();", "")
+                        .replace("insert(params);end", "").replace("params.set", ""));
+        updateCaptionToDynamicLayoutMap(params);
+    }
+
+    private void updateCaptionToDynamicLayoutMap(final StringBuilder params) {
+        String[] components = params.toString().split("\\);");
+        if (components.length > 0) {
+            for (int i = 0; i < components.length; i++) {
+                String value;
+                components[i] = components[i] + ")";
+                String caption = components[i].substring(0, components[i].indexOf('('));
+                caption = caption.substring(0, 1).toLowerCase() + caption.substring(1);
+                if (components[i].contains("(\"")) {
+                    value = components[i].substring(components[i].indexOf("(\""), components[i].indexOf("\")"))
+                            .replace("(\"", "").replace("\")", "");
+                } else {
+                    value = components[i].substring(components[i].indexOf('('), components[i].indexOf(')'))
+                            .replace("(", "").replace(")", "");
+                }
+                dynamicLayoutMap.put(caption, value);
+            }
+        }
+    }
+
+    private String processEndComment(String line) {
+        try {
+            line = splitMultiLineEndComment(line);
+        } catch (Exception e) {
+            policyLogger.info("Just for Logging" + e);
+            line = "";
+        }
+        return line;
+    }
+
+    private String processMultiLineFullComment(String line) {
+        try {
+            line = splitMultiLineStartComment(line) + splitMultiLineEndComment(line);
+        } catch (Exception e) {
+            policyLogger.info("Just for Logging" + e);
+            line = splitMultiLineStartComment(line);
+        }
+        return line;
+    }
+
+    /**
+     * setViewRule.
+     *
+     * @param request HttpServletRequest
+     * @param response HttpServletResponse
+     */
+    @SuppressWarnings("unchecked")
+    @RequestMapping(value = {"/policyController/ViewBRMSParamPolicyRule.htm"}, method = {RequestMethod.POST})
+    public void setViewRule(HttpServletRequest request, HttpServletResponse response) {
+        try {
+            ObjectMapper mapper = new ObjectMapper();
+            mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+            JsonNode root = mapper.readTree(request.getReader());
+            PolicyRestAdapter policyData = mapper.readValue(
+                    root.get(PolicyController.getPolicydata()).get("policy").toString(), PolicyRestAdapter.class);
+            policyData.setDomainDir(
+                    root.get(PolicyController.getPolicydata()).get("model").get("name").toString().replace("\"", ""));
+            if (root.get(PolicyController.getPolicydata()).get("model").get("type").toString().replace("\"", "")
+                    .equals(PolicyController.getFile())) {
+                policyData.setEditPolicy(true);
+            }
+
+            String body = findRule(policyData.getRuleName()) + "\n";
+            StringBuilder generatedMetadata = new StringBuilder().append(
+                    "/* Autogenerated Code Please Don't change/remove this comment section. "
+                            + "This is for the UI purpose. \n\t ")
+                    .append(brmsTemplateVlaue).append(policyData.getRuleName()).append("%$> \n */ \n");
+
+            if (policyData.getDynamicLayoutMap().size() > 0) {
+                generatedMetadata.append("/* <%$Values=");
+                for (Entry<?, ?> entry : policyData.getRuleData().entrySet()) {
+                    String uiKey = (String) entry.getKey();
+                    if (!"templateName".equals(uiKey)) {
+                        generatedMetadata.append(uiKey).append(":-:").append(entry.getValue()).append(":|:");
+                    }
+                }
+                generatedMetadata.append("$%> \n*/ \n");
+            }
+            policyLogger.info("Metadata generated with :" + generatedMetadata.toString());
+            body = generatedMetadata.toString() + body;
+            // Expand the body.
+            Map<String, String> copyMap =
+                    new HashMap<>((Map<? extends String, ? extends String>) policyData.getRuleData());
+            copyMap.put("policyName",
+                    policyData.getDomainDir().replace("\\", ".") + ".Config_BRMS_Param_" + policyData.getPolicyName());
+            copyMap.put("policyScope", policyData.getDomainDir().replace("\\", "."));
+            copyMap.put("policyVersion", "1");
+            // Finding all the keys in the Map data-structure.
+            Set<String> keySet = copyMap.keySet();
+            Iterator<String> iterator = keySet.iterator();
+            while (iterator.hasNext()) {
+                // Converting the first character of the key into a lower case.
+                String input = iterator.next();
+                String output = Character.toLowerCase(input.charAt(0)) + (input.length() > 1 ? input.substring(1) : "");
+                // Searching for a pattern in the String using the key.
+                Pattern pattern = Pattern.compile("\\$\\{" + output + "\\}");
+                Matcher matcher = pattern.matcher(body);
+                // Replacing the value with the inputs provided by the user in the editor.
+                body = matcher.replaceAll(copyMap.get(input));
+            }
+            response.setCharacterEncoding("UTF-8");
+            response.setContentType("application / json");
+            request.setCharacterEncoding("UTF-8");
+
+            response.getWriter().write(new JSONObject("{policyData: " + mapper.writeValueAsString(body)
+                + "}").toString());
+        } catch (Exception e) {
+            policyLogger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + e);
+        }
+    }
 }