gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*
   2  * Copyright © 2017-2018 AT&T Intellectual Property.
   3  * Modifications Copyright © 2018 IBM.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package org.onap.ccsdk.apps.controllerblueprints.core.service
  19
  20
  21 import com.att.eelf.configuration.EELFLogger
  22 import com.att.eelf.configuration.EELFManager
  23 import com.fasterxml.jackson.databind.JsonNode
  24 import com.fasterxml.jackson.databind.node.NullNode
  25 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants
  26 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintException
  27 import org.onap.ccsdk.apps.controllerblueprints.core.data.*
  28 import org.onap.ccsdk.apps.controllerblueprints.core.format
  29 import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils
  30 import org.onap.ccsdk.apps.controllerblueprints.core.utils.JsonParserUtils
  31 import org.onap.ccsdk.apps.controllerblueprints.core.utils.ResourceResolverUtils
  32
  33 /**
  34  *
  35  *
  36  * @author Brinda Santh
  37  */
  38 class PropertyAssignmentService(var bluePrintRuntimeService: BluePrintRuntimeService<MutableMap<String, JsonNode>>) {
  39     private val log: EELFLogger = EELFManager.getInstance().getLogger(this::class.toString())
  40
  41     private var bluePrintContext: BluePrintContext = bluePrintRuntimeService.bluePrintContext()
  42
  43 /*
  44
  45 If Property Assignment is Expression.
  46     Get the Expression
  47     Recursively resolve the expression
  48  */
  49
  50     fun resolveAssignmentExpression(nodeTemplateName: String, assignmentName: String,
  51                                     assignment: JsonNode): JsonNode {
  52         val valueNode: JsonNode
  53         log.trace("Assignment ({})", assignment)
  54         val expressionData = BluePrintExpressionService.getExpressionData(assignment)
  55
  56         if (expressionData.isExpression) {
  57             valueNode = resolveExpression(nodeTemplateName, assignmentName, expressionData)
  58         } else {
  59             valueNode = expressionData.valueNode
  60         }
  61         return valueNode
  62     }
  63
  64     fun resolveExpression(nodeTemplateName: String, propName: String, expressionData: ExpressionData): JsonNode {
  65
  66         var valueNode: JsonNode = NullNode.getInstance()
  67
  68         if (expressionData.isExpression) {
  69             val command = expressionData.command!!
  70
  71             when (command) {
  72                 BluePrintConstants.EXPRESSION_GET_INPUT -> {
  73                     valueNode = bluePrintRuntimeService.getInputValue(expressionData.inputExpression?.propertyName!!)
  74                 }
  75                 BluePrintConstants.EXPRESSION_GET_ATTRIBUTE -> {
  76                     valueNode = resolveAttributeExpression(nodeTemplateName, expressionData.attributeExpression!!)
  77                 }
  78                 BluePrintConstants.EXPRESSION_GET_PROPERTY -> {
  79                     valueNode = resolvePropertyExpression(nodeTemplateName, expressionData.propertyExpression!!)
  80                 }
  81                 BluePrintConstants.EXPRESSION_GET_OPERATION_OUTPUT -> {
  82                     valueNode = resolveOperationOutputExpression(nodeTemplateName, expressionData.operationOutputExpression!!)
  83                 }
  84                 BluePrintConstants.EXPRESSION_GET_ARTIFACT -> {
  85                     valueNode = resolveArtifactExpression(nodeTemplateName, expressionData.artifactExpression!!)
  86                 }
  87                 BluePrintConstants.EXPRESSION_GET_NODE_OF_TYPE -> {
  88
  89                 }
  90                 else -> {
  91                     throw BluePrintException(format("for property ({}), command ({}) is not supported ", propName, command))
  92                 }
  93             }
  94         }
  95         return valueNode
  96     }
  97
  98     /*
  99     get_attribute: [ <modelable_entity_name>, <optional_req_or_cap_name>, <property_name>,
 100     <nested_property_name_or_index_1>, ..., <nested_property_name_or_index_n> ]
 101  */
 102     fun resolveAttributeExpression(nodeTemplateName: String, attributeExpression: AttributeExpression): JsonNode {
 103         var valueNode: JsonNode
 104
 105         val attributeName = attributeExpression.attributeName
 106         val subAttributeName: String? = attributeExpression.subAttributeName
 107
 108         var attributeNodeTemplateName = nodeTemplateName
 109         when (attributeExpression.modelableEntityName) {
 110             "ENV" -> {
 111                 val environmentValue = System.getProperty(attributeName)
 112                 valueNode = JacksonUtils.jsonNode(environmentValue)
 113             }
 114             else -> {
 115                 if (!attributeExpression.modelableEntityName.equals("SELF", true)) {
 116                     attributeNodeTemplateName = attributeExpression.modelableEntityName
 117                 }
 118
 119                 var attributeDefinition: AttributeDefinition = bluePrintContext
 120                         .nodeTemplateNodeType(attributeNodeTemplateName).attributes?.get(attributeName)
 121                         ?: throw BluePrintException("failed to get attribute definitions for node template ($attributeNodeTemplateName)'s attribute name ($attributeName) ")
 122
 123                 valueNode = bluePrintRuntimeService.getNodeTemplateAttributeValue(attributeNodeTemplateName, attributeName)
 124                         ?: throw BluePrintException("failed to get node template ($attributeNodeTemplateName)'s attribute name ($attributeName) ")
 125             }
 126
 127         }
 128         if (subAttributeName != null) {
 129             if (valueNode.isObject || valueNode.isArray)
 130                 valueNode = JsonParserUtils.parse(valueNode, subAttributeName)
 131         }
 132         return valueNode
 133     }
 134
 135     /*
 136         get_property: [ <modelable_entity_name>, <optional_req_or_cap_name>, <property_name>,
 137         <nested_property_name_or_index_1>, ..., <nested_property_name_or_index_n> ]
 138      */
 139     fun resolvePropertyExpression(nodeTemplateName: String, propertyExpression: PropertyExpression): JsonNode {
 140         var valueNode: JsonNode
 141
 142         val propertyName = propertyExpression.propertyName
 143         val subPropertyName: String? = propertyExpression.subPropertyName
 144
 145         var propertyNodeTemplateName = nodeTemplateName
 146         if (!propertyExpression.modelableEntityName.equals("SELF", true)) {
 147             propertyNodeTemplateName = propertyExpression.modelableEntityName
 148         }
 149
 150         val nodeTemplatePropertyExpression = bluePrintContext.nodeTemplateByName(propertyNodeTemplateName).properties?.get(propertyName)
 151                 ?: throw BluePrintException(format("failed to get property definitions for node template ({})'s property name ({}) ", nodeTemplateName, propertyName))
 152
 153         var propertyDefinition: PropertyDefinition = bluePrintContext.nodeTemplateNodeType(propertyNodeTemplateName).properties?.get(propertyName)!!
 154
 155         log.info("node template name ({}), property Name ({}) resolved value ({})", propertyNodeTemplateName, propertyName, nodeTemplatePropertyExpression)
 156
 157         // Check it it is a nested expression
 158         valueNode = resolveAssignmentExpression(propertyNodeTemplateName, propertyName, nodeTemplatePropertyExpression)
 159
 160         if (subPropertyName != null) {
 161             if (valueNode.isObject || valueNode.isArray)
 162                 valueNode = JsonParserUtils.parse(valueNode, subPropertyName)
 163         }
 164         return valueNode
 165     }
 166
 167     /*
 168     get_operation_output: <modelable_entity_name>, <interface_name>, <operation_name>, <output_variable_name>
 169      */
 170     fun resolveOperationOutputExpression(nodeTemplateName: String, operationOutputExpression: OperationOutputExpression): JsonNode {
 171         var outputNodeTemplateName = nodeTemplateName
 172         if (!operationOutputExpression.modelableEntityName.equals("SELF", true)) {
 173             outputNodeTemplateName = operationOutputExpression.modelableEntityName
 174         }
 175         return bluePrintRuntimeService.getNodeTemplateOperationOutputValue(outputNodeTemplateName,
 176                 operationOutputExpression.interfaceName, operationOutputExpression.operationName,
 177                 operationOutputExpression.propertyName)
 178     }
 179
 180     /*
 181     get_artifact: [ <modelable_entity_name>, <artifact_name>, <location>, <remove> ]
 182      */
 183     fun resolveArtifactExpression(nodeTemplateName: String, artifactExpression: ArtifactExpression): JsonNode {
 184
 185         var artifactNodeTemplateName = nodeTemplateName
 186         if (!artifactExpression.modelableEntityName.equals("SELF", true)) {
 187             artifactNodeTemplateName = artifactExpression.modelableEntityName
 188         }
 189         val artifactDefinition: ArtifactDefinition = bluePrintContext.nodeTemplateByName(artifactNodeTemplateName)
 190                 .artifacts?.get(artifactExpression.artifactName)
 191                 ?: throw BluePrintException(format("failed to get artifact definitions for node template ({})'s " +
 192                         "artifact name ({}) ", nodeTemplateName, artifactExpression.artifactName))
 193
 194         return JacksonUtils.jsonNodeFromObject(artifactContent(artifactDefinition))
 195     }
 196
 197     fun artifactContent(artifactDefinition: ArtifactDefinition): String {
 198         val bluePrintBasePath: String = bluePrintContext.rootPath
 199
 200         if (artifactDefinition.repository != null) {
 201             TODO()
 202         } else if (artifactDefinition.file != null) {
 203             return ResourceResolverUtils.getFileContent(artifactDefinition.file!!, bluePrintBasePath)
 204         }
 205         return ""
 206     }
 207 }
 208