/*-
 * ============LICENSE_START=======================================================
 * ONAP-REST
 * ================================================================================
 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
 * Modified Copyright (C) 2018 Samsung Electronics Co., Ltd.
 * ================================================================================
 * 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.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.rest.util;

import com.att.research.xacml.util.XACMLProperties;
import com.google.gson.Gson;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.EMap;
import org.eclipse.emf.common.util.Enumerator;
import org.eclipse.emf.common.util.TreeIterator;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EEnum;
import org.eclipse.emf.ecore.EEnumLiteral;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.impl.EAttributeImpl;
import org.eclipse.emf.ecore.impl.EEnumImpl;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl;
import org.json.JSONObject;
import org.onap.policy.rest.XACMLRestProperties;
import org.yaml.snakeyaml.Yaml;


public class MSModelUtils {

    private static final Log logger = LogFactory.getLog(MSModelUtils.class);

    private HashMap<String, MSAttributeObject> classMap = new HashMap<>();
    private HashMap<String, String> enumMap = new HashMap<>();
    private HashMap<String, String> matchingClass = new HashMap<>();
    private String configuration = "configuration";
    private String dictionary = "dictionary";
    private String onap = "";
    private String policy = "";
    private String eProxyURI = "eProxyURI:";
    private List<String> orderedElements = new ArrayList<>();
    private String dataOrderInfo = "";
    private Set<String> uniqueDataKeys = new HashSet<>();
    private Set<String> uniqueKeys = new HashSet<>();
    private String listConstraints = null;
    private String referenceAttributes;
    private LinkedHashMap<String, Object> retmap = new LinkedHashMap<>();
    private Map<String, String> matchableValues;
    private static final String PROPERTIES = ".properties.";
    private static final String DATATYPE = "data_types.policy.data.";
    private static final String TYPE = ".type";
    private static final String REQUIRED = ".required";
    private static final String MATCHABLE = ".matchable";
    public static final String  STRING = "string";
    public static final String  INTEGER = "integer";
    private static final String BOOLEAN = "boolean";
    public static final String  LIST = "list";
    public static final String  MAP = "map";
    private static final String DEFAULT = ".default";
    private static final String MANYFALSE = ":MANY-false";
    private static final String DESCRIPTION = ".description";

    private static final String MANYTRUE = ":MANY-true";
    private static final String DEFAULTVALUE = ":defaultValue-";
    private static final String REQUIREDVALUE = ":required-";
    private static final String MATCHABLEKEY = "matchable";
    private static final String REQUIREDFALSE = ":required-false";
    private static final String REQUIREDTRUE = ":required-true";
    private static final String MATCHINGTRUE = "matching-true";
    private static final String DESCRIPTION_KEY = "description";  
    private static final String DESCRIPTION_TOKEN =":description-";
    private static final String PROPERTIES_KEY = "properties";
    private static final String DATA_TYPE = "data_types";
    private static final String ERROR = "error";
    private static final String NODE_TYPE = "node_types";
    private static final String TOSCA_DEFINITION_VERSION = "tosca_definitions_version";
    private StringBuilder dataListBuffer = new StringBuilder();
    private List<String> dataConstraints = new ArrayList<>();
    private String attributeString = null;
    private boolean isDuplicatedAttributes = false;

    public MSModelUtils() {}

    public MSModelUtils(String onap, String policy) {
        this.onap = onap;
        this.policy = policy;
    }

    private enum ANNOTATION_TYPE {
        MATCHING, VALIDATION, DICTIONARY
    };

    public enum MODEL_TYPE {
        XMI
    };


    public Map<String, MSAttributeObject> processEpackage(String file, MODEL_TYPE model) {
        if (model == MODEL_TYPE.XMI) {
            processXMIEpackage(file);
        }
        return classMap;

    }

    private void processXMIEpackage(String xmiFile){
        EPackage root = getEpackage(xmiFile);
        TreeIterator<EObject> treeItr = root.eAllContents();
        String className;
        String returnValue;

        //    Pulling out dependency from file
        while (treeItr.hasNext()) {
            EObject obj = treeItr.next();
            if (obj instanceof EClassifier) {
                EClassifier eClassifier = (EClassifier) obj;
                className = eClassifier.getName();

                if (obj instanceof EEnum) {
                    enumMap.putAll(getEEnum(obj));
                }else if (obj instanceof EClass) {
                    String temp = getDependencyList(eClassifier).toString();
                    returnValue = StringUtils.replaceEach(temp, new String[]{"[", "]"}, new String[]{"", ""});
                    getAttributes(className, returnValue, root);
                }
            }
        }

        if (!enumMap.isEmpty()){
            addEnumClassMap();
        }
        if (!matchingClass.isEmpty()){
            checkForMatchingClass();
        }
    }

    private void checkForMatchingClass() {
        HashMap<String, String> tempAttribute = new HashMap<>();

        for (Entry<String, String> set : matchingClass.entrySet()){
            String key = set.getKey();
            if (classMap.containsKey(key)){
                Map<String, String> listAttributes = classMap.get(key).getAttribute();
                Map<String, String> listRef = classMap.get(key).getRefAttribute();
                for (  Entry<String, String> eSet : listAttributes.entrySet()){
                    String key2 = eSet.getKey();
                    tempAttribute.put(key2, MATCHINGTRUE);
                }
                for (  Entry<String, String> eSet : listRef.entrySet()){
                    String key3 = eSet.getKey();
                    tempAttribute.put(key3, MATCHINGTRUE);
                }

            }
            updateMatching(tempAttribute, key);
        }

    }



    private void updateMatching(HashMap<String, String> tempAttribute, String key) {
        Map<String, MSAttributeObject> newClass = classMap;

        for (Entry<String, MSAttributeObject> updateClass :  newClass.entrySet()){
            Map<String, String> valueMap = updateClass.getValue().getMatchingSet();
            String keymap = updateClass.getKey();
            if (valueMap.containsKey(key)){
                Map<String, String> modifyMap = classMap.get(keymap).getMatchingSet();
                modifyMap.remove(key);
                modifyMap.putAll(tempAttribute);
                classMap.get(keymap).setMatchingSet(modifyMap);
            }

        }
    }

    private void addEnumClassMap() {
        for (Entry<String, MSAttributeObject> value :classMap.entrySet()){
            value.getValue().setEnumType(enumMap);
        }
    }

    private EPackage getEpackage(String xmiFile) {
        ResourceSet resSet = new ResourceSetImpl();
        Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE;
        Map<String, Object> m = reg.getExtensionToFactoryMap();
        m.put("xmi", new XMIResourceFactoryImpl());
        Resource resource = resSet.getResource(URI.createFileURI(xmiFile), true);
        try {
            resource.load(Collections.emptyMap());
        } catch (IOException e) {
            logger.error("Error loading Encore Resource for new Model" + e);
        }

        return (EPackage) resource.getContents().get(0);
    }

    private HashMap<String, String> getEEnum(EObject obj) {
        List<String> valueList = new ArrayList<>();
        HashMap<String, String> returnMap = new HashMap<>();
        EEnum eenum = (EEnum)obj;

        String name = eenum.getName();
        for (EEnumLiteral eEnumLiteral : eenum.getELiterals())
        {
            Enumerator instance = eEnumLiteral.getInstance();
            String value = instance.getLiteral();
            valueList.add(value);
        }
        returnMap.put(name, valueList.toString());
        return returnMap;
    }

    public void getAttributes(String className, String dependency, EPackage root) {
        List<String> dpendList = new ArrayList<>();
        if (dependency!=null){
            dpendList = new ArrayList<>(Arrays.asList(dependency.split(",")));
        }
        MSAttributeObject msAttributeObject = new MSAttributeObject();
        msAttributeObject.setClassName(className);
        String extendClass = getSubTypes(root, className);
        Map<String, String> returnRefList = getRefAttributeList(root, className, extendClass);
        Map<String, String> returnAttributeList = getAttributeList(root, className, extendClass);
        Map<String, Object> returnSubList = getSubAttributeList(root, className, extendClass);
        HashMap<String, String> returnAnnotation = getAnnotation(root, className, extendClass);
        msAttributeObject.setAttribute(returnAttributeList);
        msAttributeObject.setRefAttribute(returnRefList);
        msAttributeObject.setSubClass(returnSubList);
        msAttributeObject.setDependency(dpendList.toString());
        msAttributeObject.addMatchingSet(returnAnnotation);
        msAttributeObject.setPolicyTempalate(isPolicyTemplate(root, className));

        this.classMap.put(className, msAttributeObject);
    }

    private HashMap<String, String> getAnnotation(EPackage root, String className, String extendClass) {
        TreeIterator<EObject> treeItr = root.eAllContents();
        boolean requiredAttribute = false;
        boolean requiredMatchAttribute = false;
        HashMap<String, String> annotationSet = new HashMap<>();

        //    Pulling out dependency from file
        while (treeItr.hasNext()) {
            EObject obj = treeItr.next();
            if (obj instanceof EClassifier) {
                requiredAttribute = isRequiredAttribute(obj,  className );
                requiredMatchAttribute = isRequiredAttribute(obj,  extendClass );
            }

            if (requiredAttribute){
                if (obj instanceof EStructuralFeature) {
                    checkAnnotation(annotationSet, (EStructuralFeature) obj);
                }
            } else if (requiredMatchAttribute && (obj instanceof EStructuralFeature)) {
                findMatchingAnnotation(annotationSet, obj);
            }
        }
        return annotationSet;
    }

    private void findMatchingAnnotation(HashMap<String, String> annotationSet, EObject obj) {
        EStructuralFeature eStrucClassifier = (EStructuralFeature) obj;
        if (eStrucClassifier.getEAnnotations().isEmpty()) {
            return;
        }
        String matching  = annotationValue(eStrucClassifier, ANNOTATION_TYPE.MATCHING, policy);
        if (matching!=null){
            if (obj instanceof EReference){
                EClass refType = ((EReference) obj).getEReferenceType();
                annotationSet.put(refType.getName(), matching);
                matchingClass.put(refType.getName(), matching);
            }else{
                annotationSet.put(eStrucClassifier.getName(), matching);
            }
        }

    }

    private void checkAnnotation(HashMap<String, String> annotationSet, EStructuralFeature obj) {
        EStructuralFeature eStrucClassifier = obj;
        if (eStrucClassifier.getEAnnotations().isEmpty()) {
            return;
        }
        String matching  = annotationValue(eStrucClassifier, ANNOTATION_TYPE.MATCHING, policy);
        if (matching!=null){
            annotationSet.put(eStrucClassifier.getName(), matching);
        }
        String range  = annotationValue(eStrucClassifier, ANNOTATION_TYPE.VALIDATION, policy);
        if (range!=null){
            annotationSet.put(eStrucClassifier.getName(), range);
        }
        String annotationDict = annotationValue(eStrucClassifier, ANNOTATION_TYPE.DICTIONARY, policy);
        if (annotationDict!=null){
            annotationSet.put(eStrucClassifier.getName(), annotationDict);
        }
    }

    private Map<String, Object> getSubAttributeList(EPackage root, String className , String superClass) {
        TreeIterator<EObject> treeItr = root.eAllContents();
        boolean requiredAttribute = false;
        Map<String, Object> subAttribute = new HashMap<>();
        int rollingCount = 0;
        int processClass = 0;

        //    Pulling out dependency from file
        while (treeItr.hasNext() && rollingCount < 2) {

            EObject obj = treeItr.next();
            if (obj instanceof EClassifier) {
                requiredAttribute = isRequiredAttribute(obj,  className ) || isRequiredAttribute(obj,  superClass );
                if (requiredAttribute){
                    processClass++;
                }
                rollingCount = rollingCount+processClass;
            }

            if (requiredAttribute && (obj instanceof EStructuralFeature)) {
                EStructuralFeature eStrucClassifier = (EStructuralFeature) obj;
                if (!eStrucClassifier.getEAnnotations().isEmpty()) {
                    updateSubAttributes(subAttribute, obj, eStrucClassifier);
                }
            }
        }
        return subAttribute;
    }

    private void updateSubAttributes(Map<String, Object> subAttribute, EObject obj, EStructuralFeature eStrucClassifier) {
        if (!(obj instanceof EReference)) {
            return;
        }
        if (annotationTest(eStrucClassifier, configuration, onap)) {
            EClass refType = ((EReference) obj).getEReferenceType();
            if(!refType.toString().contains(eProxyURI)){
                String required = REQUIREDFALSE;
                if(eStrucClassifier.getLowerBound() == 1){
                    required = REQUIREDTRUE;
                }
                subAttribute.put(eStrucClassifier.getName(), refType.getName() + required);
            }
        }
    }

    public String checkDefultValue(String defultValue) {
        if (defultValue!=null){
            return DEFAULTVALUE+ defultValue;
        }
        return ":defaultValue-NA";

    }

    public String checkRequiredPattern(int upper, int lower) {
        String pattern = XACMLProperties.getProperty(XACMLRestProperties.PROP_XCORE_REQUIRED_PATTERN);
        if (pattern!=null && upper == Integer.parseInt(pattern.split(",")[1]) && lower==Integer.parseInt(pattern.split(",")[0])){
            return REQUIREDTRUE;
        }
        return REQUIREDFALSE;
    }

    public JSONObject buildJavaObject(Map<String, String> map){
        return  new JSONObject(map);
    }

    public Map<String, String> getRefAttributeList(EPackage root, String className, String superClass){

        TreeIterator<EObject> treeItr = root.eAllContents();
        boolean requiredAttribute = false;
        HashMap<String, String> refAttribute = new HashMap<>();
        int rollingCount = 0;
        int processClass = 0;
        boolean annotation;
        //    Pulling out dependency from file
        while (treeItr.hasNext()) {
            EObject obj = treeItr.next();
            if (obj instanceof EClassifier) {
                requiredAttribute = isRequiredAttribute(obj,  className ) || isRequiredAttribute(obj,  superClass );
                if (requiredAttribute){
                    processClass++;
                }
                rollingCount = rollingCount+processClass;
            }

            if (requiredAttribute && (obj instanceof EStructuralFeature)) {
                    EStructuralFeature eStrucClassifier = (EStructuralFeature) obj;
                    if (!eStrucClassifier.getEAnnotations().isEmpty()) {
                        annotation = annotationTest(eStrucClassifier, configuration, onap);
                        if ( annotation &&  obj instanceof EReference) {
                            updRefAttributes(refAttribute, (EStructuralFeature) obj, eStrucClassifier);
                        } else if (annotation &&  obj instanceof EAttributeImpl) {
                            updEnumTypeRefAttrib(refAttribute, (EStructuralFeature) obj, eStrucClassifier);
                        }
                    }
            }
        }

        return refAttribute;
    }

    private void updEnumTypeRefAttrib(HashMap<String, String> refAttribute, EStructuralFeature obj, EStructuralFeature eStrucClassifier) {
        EClassifier refType = ((EAttributeImpl) obj).getEType();
        if (!(refType instanceof EEnumImpl)){
            return;
        }

        String array = arrayCheck(obj.getUpperBound());
        String required = REQUIREDFALSE;
        if(obj.getLowerBound() == 1){
            required = REQUIREDTRUE;
        }
        refAttribute.put(eStrucClassifier.getName(), refType.getName() + array + required);
    }

    private void updRefAttributes(HashMap<String, String> refAttribute, EStructuralFeature obj, EStructuralFeature eStrucClassifier) {
        EClass refType = ((EReference) obj).getEReferenceType();
        if(refType.toString().contains(eProxyURI)){
            String one = refType.toString().split(eProxyURI)[1];
            String refValue = StringUtils.replaceEach(one.split("#")[1], new String[]{"//", ")"}, new String[]{"", ""});
            refAttribute.put(eStrucClassifier.getName(), refValue);
        } else {
            String required = REQUIREDFALSE;
            if(obj.getLowerBound() == 1){
                required = REQUIREDTRUE;
            }
            refAttribute.put(eStrucClassifier.getName(), refType.getName() + arrayCheck(obj.getUpperBound()) + required);
        }
    }

    private boolean annotationTest(EStructuralFeature eStrucClassifier, String annotation, String type) {
        String annotationType;
        EAnnotation eAnnotation;
        String onapType;
        String onapValue;

        EList<EAnnotation> value = eStrucClassifier.getEAnnotations();

        for (int i = 0; i < value.size(); i++){
            annotationType = value.get(i).getSource();
            eAnnotation = eStrucClassifier.getEAnnotations().get(i);
            onapType = eAnnotation.getDetails().get(0).getValue();
            onapValue = eAnnotation.getDetails().get(0).getKey();

            if (annotationType.contains(type) && onapType.contains(annotation)){
                return true;
            }

            if (annotationType.contains(type) && onapValue.contains(annotation)){
                return true;
            }
        }

        return false;
    }


    private String annotationValue(EStructuralFeature eStrucClassifier, ANNOTATION_TYPE annotation, String type) {
        String annotationType;
        EAnnotation eAnnotation;
        String onapType;
        String onapValue = null;

        EList<EAnnotation> value = eStrucClassifier.getEAnnotations();

        for (int i = 0; i < value.size(); i++){
            annotationType = value.get(i).getSource();
            eAnnotation = eStrucClassifier.getEAnnotations().get(i);
            onapType = eAnnotation.getDetails().get(0).getKey();
            if (annotationType.contains(type) && onapType.compareToIgnoreCase(annotation.toString())==0){
                onapValue = eAnnotation.getDetails().get(0).getValue();
                if (annotation == ANNOTATION_TYPE.VALIDATION){
                    return onapValue;
                } else {
                    return onapType + "-" + onapValue;
                }
            }
        }

        return onapValue;
    }
    public boolean isRequiredAttribute(EObject obj, String className){
        EClassifier eClassifier = (EClassifier) obj;
        String workingClass = eClassifier.getName().trim();
        if (workingClass.equalsIgnoreCase(className)){
            return  true;
        }

        return false;
    }

    private boolean isPolicyTemplate(EPackage root, String className){
        boolean result = false;
        for (EClassifier classifier : root.getEClassifiers()){
            if (classifier instanceof EClass) {
                EClass eClass = (EClass)classifier;
                if (eClass.getName().contentEquals(className)) {
                    result = checkPolicyTemplate(eClass);
                    break;
                }
            }
        }
        return result;
    }

    private boolean checkPolicyTemplate(EClass eClass) {
        EList<EAnnotation> value = eClass.getEAnnotations();
        for (EAnnotation workingValue : value){
            EMap<String, String> keyMap = workingValue.getDetails();
            if (keyMap.containsKey("policyTemplate")){
                return true;
            }
        }
        return false;
    }

    private String getSubTypes(EPackage root, String className) {
        String returnSubTypes = null;
        for (EClassifier classifier : root.getEClassifiers()){
            if (classifier instanceof EClass) {
                returnSubTypes = findSubTypes(className, returnSubTypes, (EClass) classifier);
            }
        }
        return returnSubTypes;
    }

    private String findSubTypes(String className, String returnSubTypes, EClass classifier) {
        EClass eClass = classifier;

        for (EClass eSuperType : eClass.getEAllSuperTypes())
        {
            if (eClass.getName().contentEquals(className)){
                returnSubTypes = eSuperType.getName();
            }
        }
        return returnSubTypes;
    }

    public Map<String, String> getAttributeList(EPackage root, String className, String superClass){

        TreeIterator<EObject> treeItr = root.eAllContents();
        boolean requiredAttribute = false;
        HashMap<String, String> refAttribute = new HashMap<>();

        //    Pulling out dependency from file
        while (treeItr.hasNext()) {
            EObject obj = treeItr.next();
            if (obj instanceof EClassifier) {
                requiredAttribute = isRequiredAttribute(obj,  className ) || isRequiredAttribute(obj,  superClass );
            }

            if (requiredAttribute && (obj instanceof EStructuralFeature)) {
                EStructuralFeature eStrucClassifier = (EStructuralFeature) obj;
                if (!eStrucClassifier.getEAnnotations().isEmpty()) {
                    checkStrucClassifier(refAttribute, obj, eStrucClassifier);
                }
            }
        }
        return refAttribute;

    }

    private void checkStrucClassifier(HashMap<String, String> refAttribute, EObject obj, EStructuralFeature eStrucClassifier) {
        EClassifier refType = ((EStructuralFeature) obj).getEType();
        boolean annotation = annotationTest(eStrucClassifier, configuration, onap);
        boolean dictionaryTest = annotationTest(eStrucClassifier, dictionary, policy);
        if (annotation && !(obj instanceof EReference) && !(refType instanceof EEnumImpl)) {
            updEReferenceAttrib(refAttribute, dictionaryTest, (EStructuralFeature) obj, eStrucClassifier);
        }
    }

    private void updEReferenceAttrib(HashMap<String, String> refAttribute, boolean dictionaryTest, EStructuralFeature obj, EStructuralFeature eStrucClassifier) {
        String eType;
        String name = eStrucClassifier.getName();
        if (dictionaryTest){
            eType = annotationValue(eStrucClassifier, ANNOTATION_TYPE.DICTIONARY, policy);
        }else {
            eType = eStrucClassifier.getEType().getInstanceClassName();
        }
        String defaultValue = checkDefultValue(obj.getDefaultValueLiteral());
        String array = arrayCheck(obj.getUpperBound());
        String required = checkRequiredPattern(obj.getUpperBound(), obj.getLowerBound());
        refAttribute.put(name, eType + defaultValue + required + array);
    }

    public String arrayCheck(int upperBound) {

        if (upperBound == -1){
            return MANYTRUE;
        }

        return MANYFALSE;
    }

    public List<String> getDependencyList(EClassifier eClassifier){
        List<String> returnValue = new ArrayList<>();;
        EList<EClass> somelist = ((EClass) eClassifier).getEAllSuperTypes();
        if (somelist.isEmpty()){
            return returnValue;
        }
        for(EClass depend: somelist){
            if (depend.toString().contains(eProxyURI)){
                String one = depend.toString().split(eProxyURI)[1];
                String value = StringUtils.replaceEach(one.split("#")[1], new String[]{"//", ")"}, new String[]{"", ""});
                returnValue.add(value);
            }
        }

        return returnValue;
    }

    public Map<String, String> buildSubList(Map<String, String> subClassAttributes, Map<String, MSAttributeObject> classMap, String className){
        Map<String, String> missingValues = new HashMap<>();
        Map<String, String> workingMap;
        boolean enumType;

        for ( Entry<String, String> map : classMap.get(className).getRefAttribute().entrySet()){
            String value = map.getValue().split(":")[0];
            if (value!=null){
                classMap.get(className).getEnumType();
                enumType = classMap.get(className).getEnumType().containsKey(value);
                if (!enumType){
                    workingMap =  classMap.get(value).getRefAttribute();
                    for ( Entry<String, String> subMab : workingMap.entrySet()){
                        String value2 = subMab.getValue().split(":")[0];
                        if (!subClassAttributes.containsValue(value2)){
                            missingValues.put(subMab.getKey(), subMab.getValue());
                        }
                    }

                }
            }
        }

        return missingValues;
    }

    public Map<String, Map<String, String>> recursiveReference(Map<String, MSAttributeObject> classMap, String className){

        Map<String, Map<String, String>> returnObject = new HashMap<>();
        Map<String, String> returnClass = getRefclass(classMap, className);
        returnObject.put(className, returnClass);
        for (Entry<String, String> reAttribute :returnClass.entrySet()){
            if (reAttribute.getValue().split(":")[1].contains("MANY") &&
                    classMap.get(reAttribute.getValue().split(":")[0]) != null){
                    returnObject.putAll(recursiveReference(classMap, reAttribute.getValue().split(":")[0]));
            }

        }

        return returnObject;

    }

    public String createJson(Map<String, MSAttributeObject> classMap, String className) {
        boolean enumType;
        Map<String, Map<String, String>> myObject = new HashMap<>();
        for ( Entry<String, String> map : classMap.get(className).getRefAttribute().entrySet()){
            String value = map.getValue().split(":")[0];
            if (value!=null){
                enumType = classMap.get(className).getEnumType().containsKey(value);
                if (!enumType && map.getValue().split(":")[1].contains("MANY")){
                        Map<String, Map<String, String>> testRecursive = recursiveReference(classMap, map.getValue().split(":")[0] );
                        myObject.putAll(testRecursive);
                }
            }
        }

        Gson gson = new Gson();
        return gson.toJson(myObject);
    }

    public Map<String, String> getRefclass(Map<String, MSAttributeObject> classMap, String className){
        HashMap<String, String> missingValues = new HashMap<>();

        if (classMap.get(className).getAttribute()!=null || !classMap.get(className).getAttribute().isEmpty()){
            missingValues.putAll(classMap.get(className).getAttribute());
        }

        if (classMap.get(className).getRefAttribute()!=null || !classMap.get(className).getRefAttribute().isEmpty()){
            missingValues.putAll(classMap.get(className).getRefAttribute());
        }

        return missingValues;
    }

    public String createSubAttributes(List<String> dependency, Map<String, MSAttributeObject> classMap, String modelName) {

        HashMap <String,  Object>  workingMap = new HashMap<>();
        MSAttributeObject tempObject;
        if (dependency!=null){
            if (dependency.isEmpty()){
                return "{}";
            }
            dependency.add(modelName);
            for (String element: dependency){
                tempObject = classMap.get(element);
                if (tempObject!=null){
                    workingMap.putAll(classMap.get(element).getSubClass());
                }
            }
        }

        return createJson(classMap, modelName);
    }

    public List<String> getFullDependencyList(List<String> dependency, Map<String,MSAttributeObject > classMap) {
        ArrayList<String> returnList = new ArrayList<>();
        ArrayList<String> workingList;
        returnList.addAll(dependency);
        for (String element : dependency ){
            if (classMap.containsKey(element)){
                MSAttributeObject value = classMap.get(element);
                String rawValue = StringUtils.replaceEach(value.getDependency(), new String[]{"[", "]"}, new String[]{"", ""});
                workingList = new ArrayList<>(Arrays.asList(rawValue.split(",")));
                for(String depend : workingList) {
                    updDependencyList(returnList, depend);
                }
            }
        }

        return returnList;
    }

    private void updDependencyList(ArrayList<String> returnList, String depend) {
        if (!returnList.contains(depend) && !depend.isEmpty()){
            returnList.add(depend.trim());
        }
    }

    /*
     * For TOSCA Model
     */
    public String parseTosca(String fileName) {
        Map<String, String> map = new LinkedHashMap<>();
        try {
            map = load(fileName);
            if (map != null && map.get(ERROR) != null) {
                return map.get(ERROR);
            }
            parseDataAndPolicyNodes(map);
            LinkedHashMap<String, String> dataMapForJson = parseDataNodes(map);
            constructJsonForDataFields(dataMapForJson);
            LinkedHashMap<String, LinkedHashMap<String, String>> mapKey = parsePolicyNodes(map);
            createAttributes(mapKey);

        } catch (IOException e) {
            logger.error(e);
        } catch (ParserException e) {
            logger.error(e);
            return e.getMessage();
        }

        return null;
    }

    @SuppressWarnings("unchecked")
    public Map<String, String> load(String fileName) throws IOException, ParserException {
        File newConfiguration = new File(fileName);
        StringBuilder orderInfo = new StringBuilder("[");
        Yaml yaml = new Yaml();
        LinkedHashMap<Object, Object> yamlMap = null;
        try (InputStream is = new FileInputStream(newConfiguration)) {
            yamlMap = (LinkedHashMap<Object, Object>) yaml.load(is);
        } catch (FileNotFoundException e) {
            logger.error(e);
        } catch (Exception e) {
            logger.error(e);
            throw new ParserException("Invalid TOSCA Model format. Please make sure it is a valid YAML file");
        }

        StringBuilder sb = new StringBuilder();
        LinkedHashMap<String, String> settings = new LinkedHashMap<>();
        if (yamlMap == null) {
            return settings;
        }

        String message = validations(yamlMap);

        if (message != null) {
            settings.put(ERROR, message);
            return settings;
        }

        findNode(yamlMap);

        if (!isDuplicatedAttributes && orderedElements != null && !orderedElements.isEmpty()) {
            orderedElements.stream().forEach(string -> {
                orderInfo.append(string);
                orderInfo.append(",");
                logger.info("Content: " + string);
            });

            orderInfo.append("]");

            dataOrderInfo = orderInfo.toString();
            dataOrderInfo = dataOrderInfo.replace(",]", "]");

            logger.info("dataOrderInfo :" + dataOrderInfo);
        }

        List<String> path = new ArrayList<>();
        serializeMap(settings, sb, path, yamlMap);
        return settings;
    }

    @SuppressWarnings("unchecked")
    private String validations(@SuppressWarnings("rawtypes") LinkedHashMap yamlMap) {

        boolean isNoteTypeFound = false;
        boolean isDataTypeFound = false;
        boolean isToscaVersionKeyFound = false;
        boolean isToscaVersionValueFound = false;
        @SuppressWarnings("rawtypes")
        Map m1 = new HashMap();
        short order = 0;
        if (yamlMap != null) {
            // Get a set of the entries
            @SuppressWarnings("rawtypes")
            Set set = yamlMap.entrySet();
            // Get an iterator
            @SuppressWarnings("rawtypes")
            Iterator i = set.iterator();
            // Display elements
            while (i.hasNext()) {
                @SuppressWarnings("rawtypes")
                Map.Entry me = (Map.Entry) i.next();

                if (TOSCA_DEFINITION_VERSION.equals(me.getKey())) {
                    isToscaVersionKeyFound = true;
                    order++;
                    m1.put(TOSCA_DEFINITION_VERSION, order);
                }

                if ("tosca_simple_yaml_1_0_0".equals(me.getValue())) {
                    isToscaVersionValueFound = true;
                }

                if (NODE_TYPE.equals(me.getKey())) {
                    isNoteTypeFound = true;
                    order++;
                    m1.put(NODE_TYPE, order);
                }

                if (DATA_TYPE.equals(me.getKey())) {
                    isDataTypeFound = true;
                    order++;
                    m1.put(DATA_TYPE, order);
                }

            }

            if (!isToscaVersionKeyFound || !isToscaVersionValueFound) {
                return "tosca_definitions_version is missing or invalid.";
            }

            if (!isNoteTypeFound) {
                return "node_types are missing or invalid.";
            }

            short version = (short) m1.get(TOSCA_DEFINITION_VERSION);

            if (version > 1) {
                return "tosca_definitions_version should be defined first.";
            }

            short data = (short) m1.get(DATA_TYPE);
            short node = (short) m1.get(NODE_TYPE);
            if (isDataTypeFound && node > data) {
                return "node_types should be defined before data_types.";
            }

        }

        return null;
    }

    @SuppressWarnings({"unchecked", "rawtypes"})
    private void serializeMap(LinkedHashMap<String, String> settings, StringBuilder sb, List<String> path,
            Map<Object, Object> yamlMap) {
        for (Map.Entry<Object, Object> entry : yamlMap.entrySet()) {

            if (entry.getValue() instanceof Map) {
                path.add((String) entry.getKey());
                serializeMap(settings, sb, path, (Map<Object, Object>) entry.getValue());
                path.remove(path.size() - 1);
            } else if (entry.getValue() instanceof List) {
                path.add((String) entry.getKey());
                serializeList(settings, sb, path, (List) entry.getValue());
                path.remove(path.size() - 1);
            } else {
                serializeValue(settings, sb, path, (String) entry.getKey(), entry.getValue());
            }
        }
    }

    @SuppressWarnings("unchecked")
    private void serializeList(LinkedHashMap<String, String> settings, StringBuilder sb, List<String> path,
            List<String> yamlList) {
        int counter = 0;
        for (Object listEle : yamlList) {
            if (listEle instanceof Map) {
                path.add(Integer.toString(counter));
                serializeMap(settings, sb, path, (Map<Object, Object>) listEle);
                path.remove(path.size() - 1);
            } else if (listEle instanceof List) {
                path.add(Integer.toString(counter));
                serializeList(settings, sb, path, (List<String>) listEle);
                path.remove(path.size() - 1);
            } else {
                serializeValue(settings, sb, path, Integer.toString(counter), listEle);
            }
            counter++;
        }
    }

    private void serializeValue(LinkedHashMap<String, String> settings, StringBuilder sb, List<String> path,
            String name, Object value) {
        if (value == null) {
            return;
        }
        sb.setLength(0);
        for (String pathEle : path) {
            sb.append(pathEle).append('.');
        }
        sb.append(name);
        settings.put(sb.toString(), value.toString());
    }


    void parseDataAndPolicyNodes(Map<String, String> map) {
        for (String key : map.keySet()) {
            if (key.contains("policy.nodes.Root")) {
                continue;
            } else if (key.contains("policy.nodes")) {
                String wordToFind = "policy.nodes.";
                int indexForPolicyNode = key.indexOf(wordToFind);
                String subNodeString = key.substring(indexForPolicyNode + 13, key.length());

                stringBetweenDots(subNodeString);
            } else if (key.contains("policy.data")) {
                String wordToFind = "policy.data.";
                int indexForPolicyNode = key.indexOf(wordToFind);
                String subNodeString = key.substring(indexForPolicyNode + 12, key.length());

                stringBetweenDotsForDataFields(subNodeString);
            }
        }
    }

    // Second index of dot should be returned.
    public int stringBetweenDots(String str) {
        String stringToSearch = str;
        String[] ss = stringToSearch.split("\\.");
        if (ss != null) {
            int len = ss.length;
            if (len > 2) {
                uniqueKeys.add(ss[2]);
            }
        }

        return uniqueKeys.size();
    }


    public void stringBetweenDotsForDataFields(String str) {
        String stringToSearch = str;
        String[] ss = stringToSearch.split("\\.");
        if (ss != null) {
            int len = ss.length;

            if (len > 2) {
                uniqueDataKeys.add(ss[0] + "%" + ss[2]);
            }
        }
    }

    void constructJsonForDataFields(LinkedHashMap<String, String> dataMapForJson) {
        LinkedHashMap<String, LinkedHashMap<String, String>> dataMapKey = new LinkedHashMap<>();
        LinkedHashMap<String, String> hmSub;
        for (Map.Entry<String, String> entry : dataMapForJson.entrySet()) {
            String uniqueDataKey = entry.getKey();
            String[] uniqueDataKeySplit = uniqueDataKey.split("%");
            String value = dataMapForJson.get(uniqueDataKey);
            if (dataMapKey.containsKey(uniqueDataKeySplit[0])) {
                hmSub = dataMapKey.get(uniqueDataKeySplit[0]);
                hmSub.put(uniqueDataKeySplit[1], value);
            } else {
                hmSub = new LinkedHashMap<>();
                hmSub.put(uniqueDataKeySplit[1], value);
            }

            dataMapKey.put(uniqueDataKeySplit[0], hmSub);
        }

        JSONObject mainObject = new JSONObject();
        JSONObject json;
        for (Map.Entry<String, LinkedHashMap<String, String>> entry : dataMapKey.entrySet()) {
            String s = entry.getKey();
            json = new JSONObject();
            HashMap<String, String> jsonHm = dataMapKey.get(s);
            for (Map.Entry<String, String> entryMap : jsonHm.entrySet()) {
                String key = entryMap.getKey();
                json.put(key, jsonHm.get(key));
            }
            mainObject.put(s, json);
        }
        Iterator<String> keysItr = mainObject.keys();
        while (keysItr.hasNext()) {
            String key = keysItr.next();
            String value = mainObject.get(key).toString();
            retmap.put(key, value);
        }

        logger.info("#############################################################################");
        logger.info(mainObject);
        logger.info("###############################################################################");
    }

    LinkedHashMap<String, String> parseDataNodes(Map<String, String> map) {
        LinkedHashMap<String, String> dataMapForJson = new LinkedHashMap<>();
        matchableValues = new HashMap<>();
        for (String uniqueDataKey : uniqueDataKeys) {
            if (uniqueDataKey.contains("%")) {
                String[] uniqueDataKeySplit = uniqueDataKey.split("%");
                String findType = DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1] + TYPE;
                String typeValue = map.get(findType);
                logger.info(typeValue);

                String findRequired = DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1] + REQUIRED;
                String requiredValue = map.get(findRequired);

                String matchable = DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1] + MATCHABLE;

                String matchableValue = map.get(matchable);

                if ("true".equalsIgnoreCase(matchableValue)) {
                    String key = uniqueDataKeySplit[uniqueDataKeySplit.length - 1];
                    matchableValues.put(key, MATCHINGTRUE);
                }

                if (requiredValue == null || requiredValue.isEmpty()) {
                    requiredValue = "false";
                }
                if (INTEGER.equalsIgnoreCase(typeValue) || STRING.equalsIgnoreCase(typeValue)
                        || typeValue.equalsIgnoreCase(BOOLEAN)) {
                    String findDefault =
                            DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1] + DEFAULT;
                    String findDescription =
                            DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1] + DESCRIPTION;
                    String defaultValue = map.get(findDefault);
                    String descriptionDefined = map.get(findDescription);
                    logger.info("defaultValue is:" + defaultValue);
                    logger.info("requiredValue is:" + requiredValue);

                    StringBuilder attributeIndividualStringBuilder = new StringBuilder();
                    attributeIndividualStringBuilder.append(typeValue + DEFAULTVALUE);
                    attributeIndividualStringBuilder.append(defaultValue + REQUIREDVALUE);
                    attributeIndividualStringBuilder.append(requiredValue + MANYFALSE);
                    attributeIndividualStringBuilder.append(DESCRIPTION_TOKEN + descriptionDefined);
                    dataMapForJson.put(uniqueDataKey, attributeIndividualStringBuilder.toString());
                } else if (LIST.equalsIgnoreCase(typeValue) || MAP.equalsIgnoreCase(typeValue)) {
                    logger.info("requiredValue is:" + requiredValue);
                    String findList =
                            DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1]
                                    + ".entry_schema.type";
                    String findDefaultValue =
                            DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1]
                                    + ".entry_schema.default";
                    String findDescription =
                            DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1]
                                    + ".entry_schema.description";
                    String listValue = map.get(findList);
                    String defaultValue = map.get(findDefaultValue);
                    String description = map.get(findDescription);
                    if (listValue != null) {
                        logger.info("Type of list is:" + listValue);
                        // Its userdefined
                        if (listValue.contains(".")) {
                            String trimValue = listValue.substring(listValue.lastIndexOf('.') + 1);
                            StringBuilder referenceIndividualStringBuilder = new StringBuilder();
                            referenceIndividualStringBuilder.append(trimValue + REQUIREDVALUE);
                            referenceIndividualStringBuilder.append(requiredValue + MANYTRUE);
                            referenceIndividualStringBuilder.append(DESCRIPTION_TOKEN + description);
                            dataMapForJson.put(uniqueDataKey, referenceIndividualStringBuilder.toString());
                        } else {  // Its string
                            StringBuilder stringListItems = new StringBuilder();
                            if (LIST.equalsIgnoreCase(typeValue)) {
                                stringListItems.append(uniqueDataKeySplit[1].toUpperCase() + DEFAULTVALUE
                                        + defaultValue + REQUIREDVALUE + requiredValue + MANYFALSE + DESCRIPTION_TOKEN
                                        + description);
                            } else if (MAP.equalsIgnoreCase(typeValue)) {
                                stringListItems.append(uniqueDataKeySplit[1].toUpperCase() + DEFAULTVALUE
                                        + defaultValue + REQUIREDVALUE + requiredValue + MANYTRUE + DESCRIPTION_TOKEN
                                        + description);
                            }
                            dataMapForJson.put(uniqueDataKey, stringListItems.toString());
                            dataListBuffer.append(uniqueDataKeySplit[1].toUpperCase() + "=[");
                            for (int i = 0; i < 10; i++) {
                                String findConstraints =
                                        DATATYPE + uniqueDataKeySplit[0] + PROPERTIES + uniqueDataKeySplit[1]
                                                + ".entry_schema.constraints.0.valid_values." + i;
                                String constraintsValue = map.get(findConstraints);
                                logger.info(constraintsValue);
                                if (constraintsValue == null) {
                                    break;
                                } else {
                                    logger.info("constraintsValue => " + constraintsValue);
                                    if (constraintsValue.contains("=")) {
                                        constraintsValue = constraintsValue.replace("=", "equal-sign");
                                    }
                                    dataConstraints.add(constraintsValue);
                                    dataListBuffer.append(constraintsValue + ",");
                                }
                            }
                            dataListBuffer.append("]#");
                            logger.info(dataListBuffer);
                        }
                    }
                } else {
                    String findUserDefined =
                            DATATYPE + uniqueDataKeySplit[0] + "." + PROPERTIES_KEY + "." + uniqueDataKeySplit[1]
                                    + ".type";
                    String findDescription =
                            DATATYPE + uniqueDataKeySplit[0] + "." + PROPERTIES_KEY + "." + uniqueDataKeySplit[1]
                                    + ".description";
                    String userDefinedValue = map.get(findUserDefined);
                    String description = map.get(findDescription);
                    String trimValue = userDefinedValue.substring(userDefinedValue.lastIndexOf('.') + 1);
                    StringBuilder referenceIndividualStringBuilder = new StringBuilder();
                    referenceIndividualStringBuilder.append(trimValue + REQUIREDVALUE);
                    referenceIndividualStringBuilder.append(requiredValue + MANYFALSE);
                    referenceIndividualStringBuilder.append(DESCRIPTION_TOKEN + description);
                    dataMapForJson.put(uniqueDataKey, referenceIndividualStringBuilder.toString());

                }
            } else {
                matchableValues.put(uniqueDataKey, MATCHINGTRUE);
            }
        }

        return dataMapForJson;
    }

    LinkedHashMap<String, LinkedHashMap<String, String>> parsePolicyNodes(Map<String, String> map)
            throws ParserException {
        LinkedHashMap<String, LinkedHashMap<String, String>> mapKey = new LinkedHashMap<>();
        for (String uniqueKey : uniqueKeys) {
            LinkedHashMap<String, String> hm;

            for (Entry<String, String> entry : map.entrySet()) {
                String key = entry.getKey();
                if (key.contains(uniqueKey) && key.contains("policy.nodes")) {
                    if (mapKey.containsKey(uniqueKey)) {
                        hm = mapKey.get(uniqueKey);
                        String keyStr = key.substring(key.lastIndexOf('.') + 1);
                        String valueStr = map.get(key);
                        if ("type".equalsIgnoreCase(keyStr)
                                && key.contains("entry_schema.0.type") || key.contains("entry_schema.type")
                                        && valueStr.contains("policy.data.")) {
                            throw new ParserException(
                                "For user defined object type, Please make sure no space between 'type:' and object "
                                            + valueStr);

                        }
                        if ("type".equals(keyStr)) {
                            if (!key.contains("entry_schema")) {
                                hm.put(keyStr, valueStr);
                            }
                        } else {
                            hm.put(keyStr, valueStr);
                        }

                    } else {
                        hm = new LinkedHashMap<>();
                        String keyStr = key.substring(key.lastIndexOf('.') + 1);
                        String valueStr = map.get(key);

                        if (("type").equals(keyStr)) {
                            if (!key.contains("entry_schema")) {
                                hm.put(keyStr, valueStr);
                            }
                        } else {
                            hm.put(keyStr, valueStr);
                        }
                        mapKey.put(uniqueKey, hm);
                    }
                }
            }
        }
        return mapKey;
    }

    void createAttributes(LinkedHashMap<String, LinkedHashMap<String, String>> mapKey) {
        StringBuilder attributeStringBuilder = new StringBuilder();
        StringBuilder referenceStringBuilder = new StringBuilder();
        StringBuilder listBuffer = new StringBuilder();
        List<String> constraints = new ArrayList<>();
        for (Map.Entry<String, LinkedHashMap<String, String>> entry : mapKey.entrySet()) {
            String keySetString = entry.getKey();
            LinkedHashMap<String, String> keyValues = mapKey.get(keySetString);
            if (keyValues.get("type") != null && (STRING.equalsIgnoreCase(keyValues.get("type"))
                    || INTEGER.equalsIgnoreCase(keyValues.get("type"))
                    || BOOLEAN.equalsIgnoreCase(keyValues.get("type")))) {
                StringBuilder attributeIndividualStringBuilder = new StringBuilder();
                attributeIndividualStringBuilder.append(keySetString + "=");
                attributeIndividualStringBuilder.append(keyValues.get("type") + DEFAULTVALUE);
                attributeIndividualStringBuilder.append(keyValues.get("default") + REQUIREDVALUE);
                attributeIndividualStringBuilder.append(keyValues.get("required") + MANYFALSE);
                attributeIndividualStringBuilder.append(DESCRIPTION_TOKEN + keyValues.get(DESCRIPTION_KEY));
                attributeStringBuilder.append(attributeIndividualStringBuilder + ",");
                if (keyValues.get(MATCHABLEKEY) != null && "true".equalsIgnoreCase(keyValues.get(MATCHABLEKEY))) {
                    matchableValues.put(keySetString, MATCHINGTRUE);
                }
            } else if (LIST.equalsIgnoreCase(keyValues.get("type"))) {
                if ("true".equalsIgnoreCase(keyValues.get(MATCHABLEKEY))) {
                    matchableValues.put(keySetString, MATCHINGTRUE);
                }
                // List Data type
                Set<String> keys = keyValues.keySet();
                Iterator<String> itr = keys.iterator();
                boolean isDefinedType = false;
                while (itr.hasNext()) {
                    String key = itr.next();
                    if ((!("type").equals(key) || ("required").equals(key))) {
                        String value = keyValues.get(key);
                        // The "." in the value determines if its a string or a user defined type.
                        if (!value.contains(".")) {
                            // This is string
                            if (StringUtils.isNumeric(key)) { // only integer key for the value of Constrains
                                constraints.add(keyValues.get(key));
                            }
                        } else {
                            // This is user defined type
                            String trimValue = value.substring(value.lastIndexOf('.') + 1);
                            StringBuilder referenceIndividualStringBuilder = new StringBuilder();
                            referenceIndividualStringBuilder.append(keySetString + "=" + trimValue + MANYTRUE
                                    + DESCRIPTION_TOKEN + keyValues.get(DESCRIPTION_KEY));
                            referenceStringBuilder.append(referenceIndividualStringBuilder + ",");
                            isDefinedType = true;
                        }
                    }

                }

                if (!isDefinedType && LIST.equalsIgnoreCase(keyValues.get("type"))) {
                    if (constraints == null || constraints.isEmpty()) {
                        referenceStringBuilder.append(keySetString + "=MANY-true" + ",");
                    }
                }
            } else {
                // User defined Datatype.
                if ("true".equalsIgnoreCase(keyValues.get(MATCHABLEKEY))) {
                    matchableValues.put(keySetString, MATCHINGTRUE);
                }
                String value = keyValues.get("type");
                if (value != null && !value.isEmpty()) {
                    String trimValue = value.substring(value.lastIndexOf('.') + 1);
                    StringBuilder referenceIndividualStringBuilder = new StringBuilder();
                    referenceIndividualStringBuilder.append(keySetString + "=" + trimValue + MANYFALSE
                            + DESCRIPTION_TOKEN + keyValues.get(DESCRIPTION_KEY));
                    referenceStringBuilder.append(referenceIndividualStringBuilder + ",");
                } else {
                    logger.info("keyValues.get(type) is null/empty");
                }

            }
            if (constraints != null && !constraints.isEmpty()) {
                // List handling.
                listBuffer.append(keySetString.toUpperCase() + "=[");
                for (String str : constraints) {
                    listBuffer.append(str + ",");
                }
                listBuffer.append("]#");
                logger.info(listBuffer);


                StringBuilder referenceIndividualStringBuilder = new StringBuilder();
                referenceIndividualStringBuilder.append(keySetString + "=" + keySetString.toUpperCase() + MANYFALSE);
                referenceStringBuilder.append(referenceIndividualStringBuilder + ",");
                constraints.clear();
            }
        }

        dataListBuffer.append(listBuffer);


        logger.info("$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$");
        logger.info("Whole attribute String is:" + attributeStringBuilder);
        logger.info("Whole reference String is:" + referenceStringBuilder);
        logger.info("List String is:" + listBuffer);
        logger.info("Data list buffer is:" + dataListBuffer);
        logger.info("$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$");

        this.listConstraints = dataListBuffer.toString();
        this.referenceAttributes = referenceStringBuilder.toString();
        this.attributeString = attributeStringBuilder.toString();
    }

    @SuppressWarnings("unchecked")
    private void findNode(LinkedHashMap<Object, Object> map) {

        map.forEach((key, value) -> {
            // if the value is properties and its type is map object, then save all the keys
            if (key.equals(PROPERTIES_KEY) && value instanceof Map) {
                saveNodes((LinkedHashMap<?, ?>) value);
                if (isDuplicatedAttributes) {
                    orderedElements = new ArrayList<>();
                    return;
                }
            }

            if (!"policy.nodes.Root".equals(key) && value instanceof Map) {
                // value is a Map object, then make a recursive call
                findNode((LinkedHashMap<Object, Object>) value);
            }
        });

    }

    private void saveNodes(LinkedHashMap<?, ?> map) {

        for (Entry<?, ?> entry : map.entrySet()) {

            if (orderedElements.indexOf((String) entry.getKey()) >= 0) { // duplicated attribute names
                isDuplicatedAttributes = true;
                return;
            } else {
                orderedElements.add((String) entry.getKey());
            }
        }
    }

    public String getAttributeString() {
        return attributeString;
    }

    public void setAttributeString(String attributeString) {
        this.attributeString = attributeString;
    }

    public LinkedHashMap<String, Object> getRetmap() {
        return retmap;
    }

    public void setRetmap(LinkedHashMap<String, Object> retmap) {
        this.retmap = retmap;
    }

    public Map<String, String> getMatchableValues() {
        return matchableValues;
    }

    public void setMatchableValues(Map<String, String> matchableValues) {
        this.matchableValues = matchableValues;
    }

    public String getReferenceAttributes() {
        return referenceAttributes;
    }

    public void setReferenceAttributes(String referenceAttributes) {
        this.referenceAttributes = referenceAttributes;
    }

    public String getListConstraints() {
        return listConstraints;
    }

    public void setListConstraints(String listConstraints) {
        this.listConstraints = listConstraints;
    }

    public String getDataOrderInfo() {
        return dataOrderInfo;
    }

    public void setDataOrderInfo(String dataOrderInfo) {
        this.dataOrderInfo = dataOrderInfo;
    }

}