catalog-be/src/main/java/org/openecomp/sdc/be/datamodel/utils/ConstraintConvertor.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   4  * ================================================================================
   5  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.openecomp.sdc.be.datamodel.utils;
  21
  22 import com.google.common.collect.ImmutableMap;
  23 import com.google.common.collect.ImmutableSet;
  24 import java.util.ArrayList;
  25 import java.util.Arrays;
  26 import java.util.HashMap;
  27 import java.util.List;
  28 import java.util.Map;
  29 import java.util.Set;
  30 import org.openecomp.sdc.be.model.tosca.constraints.ConstraintType;
  31 import org.openecomp.sdc.be.ui.model.UIConstraint;
  32 import org.openecomp.sdc.tosca.datatypes.ToscaFunctions;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35 import org.yaml.snakeyaml.Yaml;
  36
  37 public class ConstraintConvertor {
  38
  39     public static final String EQUAL_OPERATOR = ConstraintType.EQUAL.getTypes().get(1);
  40     public static final String GREATER_THAN_OPERATOR = ConstraintType.GREATER_THAN.getTypes().get(1);
  41     public static final String LESS_THAN_OPERATOR = ConstraintType.LESS_THAN.getTypes().get(1);
  42     public static final String STATIC_CONSTRAINT = "static";
  43     public static final String PROPERTY_CONSTRAINT = "property";
  44     public static final String SERVICE_INPUT_CONSTRAINT = "service_input";
  45     public static final String SELF = "SELF";
  46     private static final Logger logger = LoggerFactory.getLogger(ConstraintConvertor.class);
  47     private static Set<String> SUPPORTED_CONSTRAINT_LIST = ImmutableSet.of(EQUAL_OPERATOR, GREATER_THAN_OPERATOR, LESS_THAN_OPERATOR);
  48     private static Set<String> SUPPORTED_FUNCTIONS = ImmutableSet
  49         .of(ToscaFunctions.GET_INPUT.getFunctionName(), ToscaFunctions.GET_PROPERTY.getFunctionName());
  50
  51     public UIConstraint convert(String inConstraint) {
  52         Yaml yamlSource = new Yaml();
  53         UIConstraint uiConstraint = new UIConstraint();
  54         Object content1 = yamlSource.load(inConstraint);
  55         if (!(content1 instanceof Map)) {
  56             return null;
  57         }
  58         Map map1 = (Map) content1;
  59         Object key = map1.keySet().iterator().next();
  60         uiConstraint.setServicePropertyName(key.toString());
  61         Object content2 = map1.get(key);
  62         if (!(content2 instanceof Map)) {
  63             return null;
  64         }
  65         Map map2 = (Map) content2;
  66         Object key2 = map2.keySet().iterator().next();
  67         final String operator = key2.toString();
  68         if (SUPPORTED_CONSTRAINT_LIST.contains(operator)) {
  69             uiConstraint.setConstraintOperator(operator);
  70         }
  71         Object content3 = map2.get(key2);
  72         if (content3 instanceof String || content3 instanceof Number || content3 instanceof Boolean) {
  73             uiConstraint.setValue(content3);
  74             uiConstraint.setSourceType(STATIC_CONSTRAINT);
  75             uiConstraint.setSourceName(STATIC_CONSTRAINT);
  76             return uiConstraint;
  77         } else if (content3 instanceof List) {
  78             List list1 = (List) content3;
  79             uiConstraint.setSourceType(STATIC_CONSTRAINT);
  80             uiConstraint.setSourceName(STATIC_CONSTRAINT);
  81             uiConstraint.setValue(list1);
  82             return uiConstraint;
  83         } else if (content3 instanceof Map) {
  84             return handleMap(uiConstraint, content3);
  85         }
  86         return null;
  87     }
  88
  89     private UIConstraint handleMap(UIConstraint uiConstraint, Object content3) {
  90         Map map3 = (Map) content3;
  91         Map.Entry entry = (Map.Entry) map3.entrySet().iterator().next();
  92         final String firstKey = entry.getKey().toString().trim();
  93         if (!SUPPORTED_FUNCTIONS.contains(firstKey)) {
  94             uiConstraint.setValue(content3);
  95             return uiConstraint;
  96         }
  97         if (ToscaFunctions.GET_INPUT.getFunctionName().equals(firstKey)) {
  98             uiConstraint.setSourceType(SERVICE_INPUT_CONSTRAINT);
  99             uiConstraint.setValue(entry.getValue());
 100             return uiConstraint;
 101         } else if (ToscaFunctions.GET_PROPERTY.getFunctionName().equals(firstKey)) {
 102             uiConstraint.setSourceType(PROPERTY_CONSTRAINT);
 103             final List<String> value = (List<String>) entry.getValue();
 104             uiConstraint.setSourceName(value.get(0));
 105             uiConstraint.setValue(value.get(1));
 106             return uiConstraint;
 107         }
 108         return null;
 109     }
 110
 111     public List<String> convertToList(List<UIConstraint> uiConstraints) {
 112         List<String> retVal = new ArrayList<>();
 113         for (UIConstraint uiConstraint : uiConstraints) {
 114             String constraint = convert(uiConstraint);
 115             if (constraint != null) {
 116                 retVal.add(constraint);
 117             }
 118         }
 119         return retVal;
 120     }
 121
 122     public String convert(UIConstraint uiConstraint) {
 123         try {
 124             Map map1 = new HashMap();
 125             Map map2 = new HashMap();
 126             map1.put(uiConstraint.getServicePropertyName(), map2);
 127             if (uiConstraint.getSourceType().equals(STATIC_CONSTRAINT)) {
 128                 Object value = uiConstraint.getValue();
 129                 if (value instanceof String) {
 130                     value = new Yaml().load(value.toString());
 131                 }
 132                 map2.put(uiConstraint.getConstraintOperator(), value);
 133             } else if (uiConstraint.getSourceType().equals(PROPERTY_CONSTRAINT)) {
 134                 List list1 = Arrays.asList(uiConstraint.getSourceName(), uiConstraint.getValue());
 135                 Map map3 = ImmutableMap.of(ToscaFunctions.GET_PROPERTY.getFunctionName(), list1);
 136                 map2.put(uiConstraint.getConstraintOperator(), map3);
 137             } else if (uiConstraint.getSourceType().equals(SERVICE_INPUT_CONSTRAINT)) {
 138                 Map map3 = ImmutableMap.of(ToscaFunctions.GET_INPUT.getFunctionName(), uiConstraint.getValue());
 139                 map2.put(uiConstraint.getConstraintOperator(), map3);
 140             }
 141             Yaml yamlSource = new Yaml();
 142             return yamlSource.dump(map1);
 143         } catch (NullPointerException ex) {
 144             logger.error(ex.getMessage(), ex);
 145         }
 146         return null;
 147     }
 148
 149     public UIConstraint getUiConstraint(final String inConstraint, final UIConstraint uiConstraint) {
 150         final Object constraintObject = new Yaml().load(inConstraint);
 151         if (!(constraintObject instanceof Map)) {
 152             return null;
 153         }
 154         final Map constraintMap = (Map) constraintObject;
 155         final Object capabilityName = constraintMap.keySet().iterator().next();
 156         uiConstraint.setServicePropertyName(capabilityName.toString());
 157         Object capabilityProperties = constraintMap.get(capabilityName);
 158         if (!(capabilityProperties instanceof Map)) {
 159             return null;
 160         }
 161         final Map capabilityPropertiesMap = (Map) capabilityProperties;
 162         final Object constraintOperator = capabilityPropertiesMap.keySet().iterator().next();
 163         final String operator = constraintOperator.toString();
 164         if (SUPPORTED_CONSTRAINT_LIST.contains(operator)) {
 165             uiConstraint.setConstraintOperator(operator);
 166         }
 167         final Object constraintValue = capabilityPropertiesMap.get(constraintOperator);
 168         if (constraintValue instanceof String || constraintValue instanceof Number || constraintValue instanceof Boolean) {
 169             uiConstraint.setValue(constraintValue);
 170             uiConstraint.setSourceType(STATIC_CONSTRAINT);
 171             uiConstraint.setSourceName(STATIC_CONSTRAINT);
 172             return uiConstraint;
 173         } else if (constraintValue instanceof List) {
 174             final List constraintValueList = (List) constraintValue;
 175             uiConstraint.setSourceType(STATIC_CONSTRAINT);
 176             uiConstraint.setSourceName(STATIC_CONSTRAINT);
 177             uiConstraint.setValue(constraintValueList);
 178             return uiConstraint;
 179         } else if (constraintValue instanceof Map) {
 180             return handleMap(uiConstraint, constraintValue);
 181         }
 182         return null;
 183     }
 184 }