components/core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/service/BluePrintExpressionService.kt

   1 /*\r
   2  * Copyright © 2017-2018 AT&T Intellectual Property.\r
   3  *\r
   4  * Licensed under the Apache License, Version 2.0 (the "License");\r
   5  * you may not use this file except in compliance with the License.\r
   6  * You may obtain a copy of the License at\r
   7  *\r
   8  *     http://www.apache.org/licenses/LICENSE-2.0\r
   9  *\r
  10  * Unless required by applicable law or agreed to in writing, software\r
  11  * distributed under the License is distributed on an "AS IS" BASIS,\r
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  * See the License for the specific language governing permissions and\r
  14  * limitations under the License.\r
  15  */\r
  16 \r
  17 package org.onap.ccsdk.apps.controllerblueprints.core.service\r
  18 \r
  19 import com.fasterxml.jackson.databind.JsonNode\r
  20 import com.fasterxml.jackson.databind.node.ArrayNode\r
  21 import com.fasterxml.jackson.databind.node.ObjectNode\r
  22 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintException\r
  23 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintTypes\r
  24 import org.onap.ccsdk.apps.controllerblueprints.core.data.*\r
  25 import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils\r
  26 import com.att.eelf.configuration.EELFLogger\r
  27 import com.att.eelf.configuration.EELFManager\r
  28 \r
  29 /**\r
  30  *\r
  31  *\r
  32  * @author Brinda Santh\r
  33  */\r
  34 object BluePrintExpressionService {\r
  35     val log: EELFLogger = EELFManager.getInstance().getLogger(this::class.toString())\r
  36 \r
  37     @JvmStatic\r
  38     fun getExpressionData(propertyAssignment: Any): ExpressionData {\r
  39         val propertyAssignmentNode: JsonNode = JacksonUtils.jsonNodeFromObject(propertyAssignment)\r
  40         return getExpressionData(propertyAssignmentNode)\r
  41     }\r
  42 \r
  43     @JvmStatic\r
  44     fun getExpressionData(propertyAssignmentNode: JsonNode): ExpressionData {\r
  45         log.trace("Assignment Data/Expression : {}", propertyAssignmentNode)\r
  46         val expressionData = ExpressionData(valueNode = propertyAssignmentNode)\r
  47         if (propertyAssignmentNode is ObjectNode) {\r
  48 \r
  49             val commands: Set<String> = propertyAssignmentNode.fieldNames().asSequence().toList().intersect(BluePrintTypes.validCommands())\r
  50             if (commands.isNotEmpty()) {\r
  51                 expressionData.isExpression = true\r
  52                 expressionData.command = commands.first()\r
  53                 expressionData.expressionNode = propertyAssignmentNode\r
  54 \r
  55                 when (expressionData.command) {\r
  56                     org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants.EXPRESSION_GET_INPUT -> {\r
  57                         expressionData.inputExpression = populateInputExpression(propertyAssignmentNode)\r
  58                     }\r
  59                     org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants.EXPRESSION_GET_ATTRIBUTE -> {\r
  60                         expressionData.attributeExpression = populateAttributeExpression(propertyAssignmentNode)\r
  61                     }\r
  62                     org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants.EXPRESSION_GET_PROPERTY -> {\r
  63                         expressionData.propertyExpression = populatePropertyExpression(propertyAssignmentNode)\r
  64                     }\r
  65                     org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants.EXPRESSION_GET_OPERATION_OUTPUT -> {\r
  66                         expressionData.operationOutputExpression = populateOperationOutputExpression(propertyAssignmentNode)\r
  67                     }\r
  68                     org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants.EXPRESSION_GET_ARTIFACT -> {\r
  69                         expressionData.artifactExpression = populateArtifactExpression(propertyAssignmentNode)\r
  70                     }\r
  71                 }\r
  72             }\r
  73         }\r
  74         return expressionData\r
  75     }\r
  76 \r
  77     @JvmStatic\r
  78     fun populateInputExpression(jsonNode: JsonNode): InputExpression {\r
  79         return InputExpression(propertyName = jsonNode.first().textValue())\r
  80     }\r
  81 \r
  82     @JvmStatic\r
  83     fun populatePropertyExpression(jsonNode: JsonNode): PropertyExpression {\r
  84         val arrayNode: ArrayNode = jsonNode.first() as ArrayNode\r
  85         check(arrayNode.size() >= 2) {\r
  86             throw BluePrintException(String.format("missing property expression, " +\r
  87                     "it should be [ <modelable_entity_name>, <optional_req_or_cap_name>, <property_name>, " +\r
  88                     "<nested_property_name_or_index_1>, ..., <nested_property_name_or_index_n> ] , but present {}", jsonNode))\r
  89         }\r
  90         var reqOrCapEntityName: String? = null\r
  91         var propertyName = ""\r
  92         var subProperty: String? = null\r
  93         when {\r
  94             arrayNode.size() == 2 -> propertyName = arrayNode[1].textValue()\r
  95             arrayNode.size() == 3 -> {\r
  96                 reqOrCapEntityName = arrayNode[1].textValue()\r
  97                 propertyName = arrayNode[2].textValue()\r
  98             }\r
  99             arrayNode.size() > 3 -> {\r
 100                 reqOrCapEntityName = arrayNode[1].textValue()\r
 101                 propertyName = arrayNode[2].textValue()\r
 102                 val propertyPaths: List<String> = arrayNode.filterIndexed { index, _ ->\r
 103                     index >= 3\r
 104                 }.map { it.textValue() }\r
 105                 subProperty = propertyPaths.joinToString("/")\r
 106             }\r
 107         }\r
 108 \r
 109         return PropertyExpression(modelableEntityName = arrayNode[0].asText(),\r
 110                 reqOrCapEntityName = reqOrCapEntityName,\r
 111                 propertyName = propertyName,\r
 112                 subPropertyName = subProperty\r
 113         )\r
 114     }\r
 115 \r
 116     @JvmStatic\r
 117     fun populateAttributeExpression(jsonNode: JsonNode): AttributeExpression {\r
 118         val arrayNode: ArrayNode = jsonNode.first() as ArrayNode\r
 119         check(arrayNode.size() >= 2) {\r
 120             throw BluePrintException(String.format("missing attribute expression, " +\r
 121                     "it should be [ <modelable_entity_name>, <optional_req_or_cap_name>, <attribute_name>," +\r
 122                     " <nested_attribute_name_or_index_1>, ..., <nested_attribute_name_or_index_n> ] , but present {}", jsonNode))\r
 123         }\r
 124 \r
 125         var reqOrCapEntityName: String? = null\r
 126         var attributeName = ""\r
 127         var subAttributeName: String? = null\r
 128         when {\r
 129             arrayNode.size() == 2 -> attributeName = arrayNode[1].textValue()\r
 130             arrayNode.size() == 3 -> {\r
 131                 reqOrCapEntityName = arrayNode[1].textValue()\r
 132                 attributeName = arrayNode[2].textValue()\r
 133             }\r
 134             arrayNode.size() > 3 -> {\r
 135                 reqOrCapEntityName = arrayNode[1].textValue()\r
 136                 attributeName = arrayNode[2].textValue()\r
 137                 val propertyPaths: List<String> = arrayNode.filterIndexed { index, _ ->\r
 138                     index >= 3\r
 139                 }.map { it.textValue() }\r
 140                 subAttributeName = propertyPaths.joinToString("/")\r
 141             }\r
 142         }\r
 143         return AttributeExpression(modelableEntityName = arrayNode[0].asText(),\r
 144                 reqOrCapEntityName = reqOrCapEntityName,\r
 145                 attributeName = attributeName,\r
 146                 subAttributeName = subAttributeName\r
 147         )\r
 148     }\r
 149 \r
 150     @JvmStatic\r
 151     fun populateOperationOutputExpression(jsonNode: JsonNode): OperationOutputExpression {\r
 152         val arrayNode: ArrayNode = jsonNode.first() as ArrayNode\r
 153 \r
 154         check(arrayNode.size() >= 4) {\r
 155             throw BluePrintException(String.format("missing operation output expression, " +\r
 156                     "it should be (<modelable_entity_name>, <interface_name>, <operation_name>, <output_variable_name>) , but present {}", jsonNode))\r
 157         }\r
 158         return OperationOutputExpression(modelableEntityName = arrayNode[0].asText(),\r
 159                 interfaceName = arrayNode[1].asText(),\r
 160                 operationName = arrayNode[2].asText(),\r
 161                 propertyName = arrayNode[3].asText()\r
 162         )\r
 163     }\r
 164 \r
 165     @JvmStatic\r
 166     fun populateArtifactExpression(jsonNode: JsonNode): ArtifactExpression {\r
 167         val arrayNode: ArrayNode = jsonNode.first() as ArrayNode\r
 168 \r
 169         check(arrayNode.size() >= 2) {\r
 170             throw BluePrintException(String.format("missing artifact expression, " +\r
 171                     "it should be [ <modelable_entity_name>, <artifact_name>, <location>, <remove> ] , but present {}", jsonNode))\r
 172         }\r
 173         return ArtifactExpression(modelableEntityName = arrayNode[0].asText(),\r
 174                 artifactName = arrayNode[1].asText(),\r
 175                 location = arrayNode[2]?.asText() ?: "LOCAL_FILE",\r
 176                 remove = arrayNode[3]?.asBoolean() ?: false\r
 177         )\r
 178     }\r
 179 }