catalog-model/src/main/java/org/openecomp/sdc/be/model/tosca/validators/ListValidator.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.sdc.be.model.tosca.validators;
  22
  23 import java.util.Map;
  24
  25 import org.openecomp.sdc.be.config.BeEcompErrorManager;
  26 import org.openecomp.sdc.be.model.DataTypeDefinition;
  27 import org.openecomp.sdc.be.model.tosca.ToscaPropertyType;
  28 import org.openecomp.sdc.common.util.JsonUtils;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import com.google.gson.Gson;
  33 import com.google.gson.JsonArray;
  34 import com.google.gson.JsonElement;
  35 import com.google.gson.JsonParser;
  36 import com.google.gson.JsonSyntaxException;
  37
  38 public class ListValidator implements PropertyTypeValidator {
  39
  40         private static ListValidator listValidator = new ListValidator();
  41
  42         private static Logger log = LoggerFactory.getLogger(ListValidator.class.getName());
  43         Gson gson = new Gson();
  44
  45         private static JsonParser jsonParser = new JsonParser();
  46
  47         private static DataTypeValidatorConverter dataTypeValidatorConverter = DataTypeValidatorConverter.getInstance();
  48
  49         public static ListValidator getInstance() {
  50                 return listValidator;
  51         }
  52
  53         @Override
  54         public boolean isValid(String value, String innerType, Map<String, DataTypeDefinition> allDataTypes) {
  55
  56                 log.debug("Going to validate value {} with inner type {}", value, innerType);
  57
  58                 if (value == null || value == "") {
  59                         return true;
  60                 }
  61                 if (innerType == null) {
  62                         return false;
  63                 }
  64
  65                 PropertyTypeValidator innerValidator;
  66
  67                 ToscaPropertyType innerToscaType = ToscaPropertyType.isValidType(innerType);
  68
  69                 if (innerToscaType != null) {
  70                         switch (innerToscaType) {
  71                         case STRING:
  72                                 innerValidator = ToscaPropertyType.STRING.getValidator();
  73                                 break;
  74                         case INTEGER:
  75                                 innerValidator = ToscaPropertyType.INTEGER.getValidator();
  76                                 break;
  77                         case FLOAT:
  78                                 innerValidator = ToscaPropertyType.FLOAT.getValidator();
  79                                 break;
  80                         case BOOLEAN:
  81                                 innerValidator = ToscaPropertyType.BOOLEAN.getValidator();
  82                                 break;
  83                         case JSON:
  84                                 innerValidator = ToscaPropertyType.JSON.getValidator();
  85                                 break;
  86                         default:
  87                                 log.debug("inner Tosca Type is unknown: {}", innerToscaType);
  88                                 return false;
  89                         }
  90
  91                 } else {
  92                         log.debug("inner Tosca Type is: {}", innerType);
  93
  94                         boolean isValid = validateComplexInnerType(value, innerType, allDataTypes);
  95                         log.debug("Finish to validate value {} of list with inner type {}. result is: {}", value, innerType, isValid);
  96                         return isValid;
  97                 }
  98
  99                 try {
 100                         JsonArray jo = (JsonArray) jsonParser.parse(value);
 101                         int size = jo.size();
 102                         for (int i = 0; i < size; i++) {
 103                                 JsonElement currentValue = jo.get(i);
 104                                 String element = JsonUtils.toString(currentValue);
 105                                 if (!innerValidator.isValid(element, null, allDataTypes)) {
 106                                         log.debug("validation of element : {} failed", element);
 107                                         return false;
 108                                 }
 109
 110                         }
 111                         return true;
 112
 113                 } catch (JsonSyntaxException e) {
 114                         log.debug("Failed to parse json : {}. {}", value, e);
 115                         BeEcompErrorManager.getInstance().logBeInvalidJsonInput("List Validator");
 116                 }
 117
 118                 return false;
 119
 120         }
 121
 122         @Override
 123         public boolean isValid(String value, String innerType) {
 124                 return isValid(value, innerType, null);
 125         }
 126
 127         private boolean validateComplexInnerType(String value, String innerType,
 128                         Map<String, DataTypeDefinition> allDataTypes) {
 129
 130                 DataTypeDefinition innerDataTypeDefinition = allDataTypes.get(innerType);
 131                 if (innerDataTypeDefinition == null) {
 132                         log.debug("Data type {} cannot be found in our data types.", innerType);
 133                         return false;
 134                 }
 135
 136                 try {
 137
 138                         JsonArray jo = (JsonArray) jsonParser.parse(value);
 139                         int size = jo.size();
 140                         for (int i = 0; i < size; i++) {
 141                                 JsonElement currentValue = jo.get(i);
 142                                 if (currentValue != null) {
 143                                         String element = JsonUtils.toString(currentValue);
 144                                         boolean isValid = dataTypeValidatorConverter.isValid(element, innerDataTypeDefinition,
 145                                                         allDataTypes);
 146                                         if (isValid == false) {
 147                                                 log.debug("Cannot parse value {} from type {} in list parameter", currentValue, innerType);
 148                                                 return false;
 149                                         }
 150                                 }
 151                         }
 152
 153                 } catch (Exception e) {
 154                         log.debug("Error when parsing JSON of object of type ", e);
 155                         return false;
 156                 }
 157
 158                 return true;
 159         }
 160 }