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 GREATER_OR_EQUAL_OPERATOR = ConstraintType.GREATER_OR_EQUAL.getTypes().get(1);
  43     public static final String LESS_OR_EQUAL_OPERATOR = ConstraintType.LESS_OR_EQUAL.getTypes().get(1);
  44     public static final String STATIC_CONSTRAINT = "static";
  45     public static final String PROPERTY_CONSTRAINT = "property";
  46     public static final String SERVICE_INPUT_CONSTRAINT = "service_input";
  47     public static final String SELF = "SELF";
  48     private static final Logger logger = LoggerFactory.getLogger(ConstraintConvertor.class);
  49     private static Set<String> SUPPORTED_CONSTRAINT_LIST = ImmutableSet.of(EQUAL_OPERATOR, GREATER_THAN_OPERATOR, LESS_THAN_OPERATOR, GREATER_OR_EQUAL_OPERATOR, LESS_OR_EQUAL_OPERATOR);
  50     private static Set<String> SUPPORTED_FUNCTIONS = ImmutableSet
  51         .of(ToscaFunctions.GET_INPUT.getFunctionName(), ToscaFunctions.GET_PROPERTY.getFunctionName());
  52
  53     public UIConstraint convert(String inConstraint) {
  54         Yaml yamlSource = new Yaml();
  55         UIConstraint uiConstraint = new UIConstraint();
  56         Object content1 = yamlSource.load(inConstraint);
  57         if (!(content1 instanceof Map)) {
  58             return null;
  59         }
  60         Map map1 = (Map) content1;
  61         Object key = map1.keySet().iterator().next();
  62         uiConstraint.setServicePropertyName(key.toString());
  63         Object content2 = map1.get(key);
  64         if (!(content2 instanceof Map)) {
  65             return null;
  66         }
  67         Map map2 = (Map) content2;
  68         Object key2 = map2.keySet().iterator().next();
  69         final String operator = key2.toString();
  70         if (SUPPORTED_CONSTRAINT_LIST.contains(operator)) {
  71             uiConstraint.setConstraintOperator(operator);
  72         }
  73         Object content3 = map2.get(key2);
  74         if (content3 instanceof String || content3 instanceof Number || content3 instanceof Boolean) {
  75             uiConstraint.setValue(content3);
  76             uiConstraint.setSourceType(STATIC_CONSTRAINT);
  77             uiConstraint.setSourceName(STATIC_CONSTRAINT);
  78             return uiConstraint;
  79         } else if (content3 instanceof List) {
  80             List list1 = (List) content3;
  81             uiConstraint.setSourceType(STATIC_CONSTRAINT);
  82             uiConstraint.setSourceName(STATIC_CONSTRAINT);
  83             uiConstraint.setValue(list1);
  84             return uiConstraint;
  85         } else if (content3 instanceof Map) {
  86             return handleMap(uiConstraint, content3);
  87         }
  88         return null;
  89     }
  90
  91     private UIConstraint handleMap(UIConstraint uiConstraint, Object content3) {
  92         Map map3 = (Map) content3;
  93         Map.Entry entry = (Map.Entry) map3.entrySet().iterator().next();
  94         final String firstKey = entry.getKey().toString().trim();
  95         if (!SUPPORTED_FUNCTIONS.contains(firstKey)) {
  96             uiConstraint.setValue(content3);
  97             return uiConstraint;
  98         }
  99         if (ToscaFunctions.GET_INPUT.getFunctionName().equals(firstKey)) {
 100             uiConstraint.setSourceType(SERVICE_INPUT_CONSTRAINT);
 101             uiConstraint.setValue(entry.getValue());
 102             return uiConstraint;
 103         } else if (ToscaFunctions.GET_PROPERTY.getFunctionName().equals(firstKey)) {
 104             uiConstraint.setSourceType(PROPERTY_CONSTRAINT);
 105             final List<String> value = (List<String>) entry.getValue();
 106             uiConstraint.setSourceName(value.get(0));
 107             uiConstraint.setValue(value.get(1));
 108             return uiConstraint;
 109         }
 110         return null;
 111     }
 112
 113     public List<String> convertToList(List<UIConstraint> uiConstraints) {
 114         List<String> retVal = new ArrayList<>();
 115         for (UIConstraint uiConstraint : uiConstraints) {
 116             String constraint = convert(uiConstraint);
 117             if (constraint != null) {
 118                 retVal.add(constraint);
 119             }
 120         }
 121         return retVal;
 122     }
 123
 124     public String convert(UIConstraint uiConstraint) {
 125         try {
 126             Map map1 = new HashMap();
 127             Map map2 = new HashMap();
 128             map1.put(uiConstraint.getServicePropertyName(), map2);
 129             if (uiConstraint.getSourceType().equals(STATIC_CONSTRAINT)) {
 130                 Object value = uiConstraint.getValue();
 131                 if (value instanceof String) {
 132                     value = new Yaml().load(value.toString());
 133                 }
 134                 map2.put(uiConstraint.getConstraintOperator(), value);
 135             } else if (uiConstraint.getSourceType().equals(PROPERTY_CONSTRAINT)) {
 136                 List list1 = Arrays.asList(uiConstraint.getSourceName(), uiConstraint.getValue());
 137                 Map map3 = ImmutableMap.of(ToscaFunctions.GET_PROPERTY.getFunctionName(), list1);
 138                 map2.put(uiConstraint.getConstraintOperator(), map3);
 139             } else if (uiConstraint.getSourceType().equals(SERVICE_INPUT_CONSTRAINT)) {
 140                 Map map3 = ImmutableMap.of(ToscaFunctions.GET_INPUT.getFunctionName(), uiConstraint.getValue());
 141                 map2.put(uiConstraint.getConstraintOperator(), map3);
 142             }
 143             Yaml yamlSource = new Yaml();
 144             return yamlSource.dump(map1);
 145         } catch (NullPointerException ex) {
 146             logger.error(ex.getMessage(), ex);
 147         }
 148         return null;
 149     }
 150
 151     public UIConstraint getUiConstraint(final String inConstraint, final UIConstraint uiConstraint) {
 152         final Object constraintObject = new Yaml().load(inConstraint);
 153         if (!(constraintObject instanceof Map)) {
 154             return null;
 155         }
 156         final Map constraintMap = (Map) constraintObject;
 157         final Object capabilityName = constraintMap.keySet().iterator().next();
 158         uiConstraint.setServicePropertyName(capabilityName.toString());
 159         Object capabilityProperties = constraintMap.get(capabilityName);
 160         if (!(capabilityProperties instanceof Map)) {
 161             return null;
 162         }
 163         final Map capabilityPropertiesMap = (Map) capabilityProperties;
 164         final Object constraintOperator = capabilityPropertiesMap.keySet().iterator().next();
 165         final String operator = constraintOperator.toString();
 166         if (SUPPORTED_CONSTRAINT_LIST.contains(operator)) {
 167             uiConstraint.setConstraintOperator(operator);
 168         }
 169         final Object constraintValue = capabilityPropertiesMap.get(constraintOperator);
 170         if (constraintValue instanceof String || constraintValue instanceof Number || constraintValue instanceof Boolean) {
 171             uiConstraint.setValue(constraintValue);
 172             uiConstraint.setSourceType(STATIC_CONSTRAINT);
 173             uiConstraint.setSourceName(STATIC_CONSTRAINT);
 174             return uiConstraint;
 175         } else if (constraintValue instanceof List) {
 176             final List constraintValueList = (List) constraintValue;
 177             uiConstraint.setSourceType(STATIC_CONSTRAINT);
 178             uiConstraint.setSourceName(STATIC_CONSTRAINT);
 179             uiConstraint.setValue(constraintValueList);
 180             return uiConstraint;
 181         } else if (constraintValue instanceof Map) {
 182             return handleMap(uiConstraint, constraintValue);
 183         }
 184         return null;
 185     }
 186 }