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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 2018 IBM.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onap.ccsdk.apps.controllerblueprints.core.service
import com.att.eelf.configuration.EELFLogger
import com.att.eelf.configuration.EELFManager
import com.fasterxml.jackson.databind.JsonNode
import com.fasterxml.jackson.databind.node.NullNode
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintException
import org.onap.ccsdk.apps.controllerblueprints.core.asJsonPrimitive
import org.onap.ccsdk.apps.controllerblueprints.core.data.*
import org.onap.ccsdk.apps.controllerblueprints.core.format
import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils
import org.onap.ccsdk.apps.controllerblueprints.core.utils.JsonParserUtils
import org.onap.ccsdk.apps.controllerblueprints.core.utils.ResourceResolverUtils
/**
*
*
* @author Brinda Santh
*/
class PropertyAssignmentService(var bluePrintRuntimeService: BluePrintRuntimeService<MutableMap<String, JsonNode>>) {
private val log: EELFLogger = EELFManager.getInstance().getLogger(this::class.toString())
private var bluePrintContext: BluePrintContext = bluePrintRuntimeService.bluePrintContext()
/*
If Property Assignment is Expression.
Get the Expression
Recursively resolve the expression
*/
fun resolveAssignmentExpression(nodeTemplateName: String, assignmentName: String,
assignment: JsonNode): JsonNode {
val valueNode: JsonNode
log.trace("Assignment ({})", assignment)
val expressionData = BluePrintExpressionService.getExpressionData(assignment)
if (expressionData.isExpression) {
valueNode = resolveExpression(nodeTemplateName, assignmentName, expressionData)
} else {
valueNode = expressionData.valueNode
}
return valueNode
}
fun resolveExpression(nodeTemplateName: String, propName: String, expressionData: ExpressionData): JsonNode {
var valueNode: JsonNode = NullNode.getInstance()
if (expressionData.isExpression) {
val command = expressionData.command!!
when (command) {
BluePrintConstants.EXPRESSION_GET_INPUT -> {
valueNode = bluePrintRuntimeService.getInputValue(expressionData.inputExpression?.propertyName!!)
}
BluePrintConstants.EXPRESSION_GET_ATTRIBUTE -> {
valueNode = resolveAttributeExpression(nodeTemplateName, expressionData.attributeExpression!!)
}
BluePrintConstants.EXPRESSION_GET_PROPERTY -> {
valueNode = resolvePropertyExpression(nodeTemplateName, expressionData.propertyExpression!!)
}
BluePrintConstants.EXPRESSION_GET_OPERATION_OUTPUT -> {
valueNode = resolveOperationOutputExpression(nodeTemplateName, expressionData.operationOutputExpression!!)
}
BluePrintConstants.EXPRESSION_GET_ARTIFACT -> {
valueNode = resolveArtifactExpression(nodeTemplateName, expressionData.artifactExpression!!)
}
BluePrintConstants.EXPRESSION_DSL_REFERENCE -> {
valueNode = bluePrintRuntimeService.resolveDSLExpression(expressionData.dslExpression!!.propertyName)
}
BluePrintConstants.EXPRESSION_GET_NODE_OF_TYPE -> {
}
else -> {
throw BluePrintException(format("for property ({}), command ({}) is not supported ", propName, command))
}
}
}
return valueNode
}
/*
get_attribute: [ <modelable_entity_name>, <optional_req_or_cap_name>, <property_name>,
<nested_property_name_or_index_1>, ..., <nested_property_name_or_index_n> ]
*/
fun resolveAttributeExpression(nodeTemplateName: String, attributeExpression: AttributeExpression): JsonNode {
var valueNode: JsonNode
val attributeName = attributeExpression.attributeName
val subAttributeName: String? = attributeExpression.subAttributeName
var attributeNodeTemplateName = nodeTemplateName
/**
* Attributes are dynamic runtime properties information. There are multiple types of Attributes,
* ENV : Environment Variables
* APP : Application properties ( ie Spring resolved properties )
* BPP : Blueprint Properties, Specific to Blue Print execution.
* SELF : Current Node Template properties.
*/
when (attributeExpression.modelableEntityName) {
BluePrintConstants.PROPERTY_ENV -> {
val environmentValue = System.getProperty(attributeName)
valueNode = environmentValue.asJsonPrimitive()
}
BluePrintConstants.PROPERTY_APP -> {
TODO("Get property from application properties")
}
BluePrintConstants.PROPERTY_BPP -> {
valueNode = bluePrintRuntimeService.getNodeTemplateAttributeValue(BluePrintConstants.PROPERTY_BPP, attributeName)
?: throw BluePrintException("failed to get env attribute name ($attributeName) ")
}
else -> {
if (!attributeExpression.modelableEntityName.equals(BluePrintConstants.PROPERTY_SELF, true)) {
attributeNodeTemplateName = attributeExpression.modelableEntityName
}
var attributeDefinition: AttributeDefinition = bluePrintContext
.nodeTemplateNodeType(attributeNodeTemplateName).attributes?.get(attributeName)
?: throw BluePrintException("failed to get attribute definitions for node template ($attributeNodeTemplateName)'s attribute name ($attributeName) ")
valueNode = bluePrintRuntimeService.getNodeTemplateAttributeValue(attributeNodeTemplateName, attributeName)
?: throw BluePrintException("failed to get node template ($attributeNodeTemplateName)'s attribute name ($attributeName) ")
}
}
if (subAttributeName != null) {
if (valueNode.isObject || valueNode.isArray)
valueNode = JsonParserUtils.parse(valueNode, subAttributeName)
}
return valueNode
}
/*
get_property: [ <modelable_entity_name>, <optional_req_or_cap_name>, <property_name>,
<nested_property_name_or_index_1>, ..., <nested_property_name_or_index_n> ]
*/
fun resolvePropertyExpression(nodeTemplateName: String, propertyExpression: PropertyExpression): JsonNode {
var valueNode: JsonNode
val propertyName = propertyExpression.propertyName
val subPropertyName: String? = propertyExpression.subPropertyName
var propertyNodeTemplateName = nodeTemplateName
if (!propertyExpression.modelableEntityName.equals(BluePrintConstants.PROPERTY_SELF, true)) {
propertyNodeTemplateName = propertyExpression.modelableEntityName
}
val nodeTemplatePropertyExpression = bluePrintContext.nodeTemplateByName(propertyNodeTemplateName).properties?.get(propertyName)
?: throw BluePrintException(format("failed to get property definitions for node template ({})'s property name ({}) ", nodeTemplateName, propertyName))
var propertyDefinition: PropertyDefinition = bluePrintContext.nodeTemplateNodeType(propertyNodeTemplateName).properties?.get(propertyName)!!
log.info("node template name ({}), property Name ({}) resolved value ({})", propertyNodeTemplateName, propertyName, nodeTemplatePropertyExpression)
// Check it it is a nested expression
valueNode = resolveAssignmentExpression(propertyNodeTemplateName, propertyName, nodeTemplatePropertyExpression)
if (subPropertyName != null) {
if (valueNode.isObject || valueNode.isArray)
valueNode = JsonParserUtils.parse(valueNode, subPropertyName)
}
return valueNode
}
/*
get_operation_output: <modelable_entity_name>, <interface_name>, <operation_name>, <output_variable_name>
*/
fun resolveOperationOutputExpression(nodeTemplateName: String, operationOutputExpression: OperationOutputExpression): JsonNode {
var outputNodeTemplateName = nodeTemplateName
if (!operationOutputExpression.modelableEntityName.equals("SELF", true)) {
outputNodeTemplateName = operationOutputExpression.modelableEntityName
}
return bluePrintRuntimeService.getNodeTemplateOperationOutputValue(outputNodeTemplateName,
operationOutputExpression.interfaceName, operationOutputExpression.operationName,
operationOutputExpression.propertyName)
}
/*
get_artifact: [ <modelable_entity_name>, <artifact_name>, <location>, <remove> ]
*/
fun resolveArtifactExpression(nodeTemplateName: String, artifactExpression: ArtifactExpression): JsonNode {
var artifactNodeTemplateName = nodeTemplateName
if (!artifactExpression.modelableEntityName.equals("SELF", true)) {
artifactNodeTemplateName = artifactExpression.modelableEntityName
}
val artifactDefinition: ArtifactDefinition = bluePrintContext.nodeTemplateByName(artifactNodeTemplateName)
.artifacts?.get(artifactExpression.artifactName)
?: throw BluePrintException(format("failed to get artifact definitions for node template ({})'s " +
"artifact name ({}) ", nodeTemplateName, artifactExpression.artifactName))
return JacksonUtils.jsonNodeFromObject(artifactContent(artifactDefinition))
}
fun artifactContent(artifactDefinition: ArtifactDefinition): String {
val bluePrintBasePath: String = bluePrintContext.rootPath
if (artifactDefinition.repository != null) {
TODO()
} else if (artifactDefinition.file != null) {
return ResourceResolverUtils.getFileContent(artifactDefinition.file, bluePrintBasePath)
}
return ""
}
}
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