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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 2018 - 2019 IBM, Bell Canada.
*
* 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.cds.controllerblueprints.core.service
import com.fasterxml.jackson.databind.JsonNode
import com.fasterxml.jackson.databind.node.ArrayNode
import com.fasterxml.jackson.databind.node.ObjectNode
import com.fasterxml.jackson.databind.node.TextNode
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintException
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintTypes
import org.onap.ccsdk.cds.controllerblueprints.core.data.ArtifactExpression
import org.onap.ccsdk.cds.controllerblueprints.core.data.AttributeExpression
import org.onap.ccsdk.cds.controllerblueprints.core.data.DSLExpression
import org.onap.ccsdk.cds.controllerblueprints.core.data.ExpressionData
import org.onap.ccsdk.cds.controllerblueprints.core.data.InputExpression
import org.onap.ccsdk.cds.controllerblueprints.core.data.OperationOutputExpression
import org.onap.ccsdk.cds.controllerblueprints.core.data.PropertyExpression
import org.slf4j.LoggerFactory
/**
*
*
* @author Brinda Santh
*/
object BluePrintExpressionService {
val log = LoggerFactory.getLogger(this::class.toString())
@JvmStatic
fun checkContainsExpression(propertyAssignmentNode: JsonNode): Boolean {
val json = propertyAssignmentNode.toString()
// FIXME("Check if any Optimisation needed")
return (
json.contains(BluePrintConstants.EXPRESSION_GET_INPUT) ||
json.contains(BluePrintConstants.EXPRESSION_GET_ATTRIBUTE) ||
json.contains(BluePrintConstants.EXPRESSION_GET_PROPERTY)
)
}
@JvmStatic
fun getExpressionData(propertyAssignmentNode: JsonNode): ExpressionData {
log.trace("Assignment Data/Expression : {}", propertyAssignmentNode)
val expressionData = ExpressionData(valueNode = propertyAssignmentNode)
if (propertyAssignmentNode is ObjectNode) {
val commands: Set<String> = propertyAssignmentNode.fieldNames().asSequence().toList().intersect(BluePrintTypes.validCommands())
if (commands.isNotEmpty()) {
expressionData.isExpression = true
expressionData.command = commands.first()
expressionData.expressionNode = propertyAssignmentNode
when (expressionData.command) {
BluePrintConstants.EXPRESSION_GET_INPUT -> {
expressionData.inputExpression = populateInputExpression(propertyAssignmentNode)
}
BluePrintConstants.EXPRESSION_GET_ATTRIBUTE -> {
expressionData.attributeExpression = populateAttributeExpression(propertyAssignmentNode)
}
BluePrintConstants.EXPRESSION_GET_PROPERTY -> {
expressionData.propertyExpression = populatePropertyExpression(propertyAssignmentNode)
}
BluePrintConstants.EXPRESSION_GET_OPERATION_OUTPUT -> {
expressionData.operationOutputExpression = populateOperationOutputExpression(propertyAssignmentNode)
}
BluePrintConstants.EXPRESSION_GET_ARTIFACT -> {
expressionData.artifactExpression = populateArtifactExpression(propertyAssignmentNode)
}
}
}
} else if (propertyAssignmentNode is TextNode &&
propertyAssignmentNode.textValue().startsWith(BluePrintConstants.EXPRESSION_DSL_REFERENCE)
) {
expressionData.isExpression = true
expressionData.command = BluePrintConstants.EXPRESSION_DSL_REFERENCE
expressionData.dslExpression = populateDSLExpression(propertyAssignmentNode)
}
return expressionData
}
@JvmStatic
fun populateDSLExpression(jsonNode: TextNode): DSLExpression {
return DSLExpression(
propertyName = jsonNode.textValue()
.removePrefix(BluePrintConstants.EXPRESSION_DSL_REFERENCE)
)
}
@JvmStatic
fun populateInputExpression(jsonNode: JsonNode): InputExpression {
return InputExpression(propertyName = jsonNode.first().textValue())
}
@JvmStatic
fun populatePropertyExpression(jsonNode: JsonNode): PropertyExpression {
val arrayNode: ArrayNode = jsonNode.first() as ArrayNode
check(arrayNode.size() >= 2) {
throw BluePrintException(
String.format(
"missing property expression, " +
"it should be [ <modelable_entity_name>, <optional_req_or_cap_name>, <property_name>, " +
"<nested_property_name_or_index_1>, ..., <nested_property_name_or_index_n> ] , but present {}",
jsonNode
)
)
}
var reqOrCapEntityName: String? = null
var propertyName = ""
var subProperty: String? = null
when {
arrayNode.size() == 2 -> propertyName = arrayNode[1].textValue()
arrayNode.size() == 3 -> {
reqOrCapEntityName = arrayNode[1].textValue()
propertyName = arrayNode[2].textValue()
}
arrayNode.size() > 3 -> {
reqOrCapEntityName = arrayNode[1].textValue()
propertyName = arrayNode[2].textValue()
val propertyPaths: List<String> = arrayNode.filterIndexed { index, _ ->
index >= 3
}.map { it.textValue() }
subProperty = propertyPaths.joinToString(".")
}
}
return PropertyExpression(
modelableEntityName = arrayNode[0].asText(),
reqOrCapEntityName = reqOrCapEntityName,
propertyName = propertyName,
subPropertyName = subProperty
)
}
@JvmStatic
fun populateAttributeExpression(jsonNode: JsonNode): AttributeExpression {
val arrayNode: ArrayNode = jsonNode.first() as ArrayNode
check(arrayNode.size() >= 2) {
throw BluePrintException(
String.format(
"missing attribute expression, " +
"it should be [ <modelable_entity_name>, <optional_req_or_cap_name>, <attribute_name>," +
" <nested_attribute_name_or_index_1>, ..., <nested_attribute_name_or_index_n> ] , but present {}",
jsonNode
)
)
}
var reqOrCapEntityName: String? = null
var attributeName = ""
var subAttributeName: String? = null
when {
arrayNode.size() == 2 -> attributeName = arrayNode[1].textValue()
arrayNode.size() == 3 -> {
reqOrCapEntityName = arrayNode[1].textValue()
attributeName = arrayNode[2].textValue()
}
arrayNode.size() > 3 -> {
reqOrCapEntityName = arrayNode[1].textValue()
attributeName = arrayNode[2].textValue()
val propertyPaths: List<String> = arrayNode.filterIndexed { index, _ ->
index >= 3
}.map { it.textValue() }
subAttributeName = propertyPaths.joinToString(".")
}
}
return AttributeExpression(
modelableEntityName = arrayNode[0].asText(),
reqOrCapEntityName = reqOrCapEntityName,
attributeName = attributeName,
subAttributeName = subAttributeName
)
}
@JvmStatic
fun populateOperationOutputExpression(jsonNode: JsonNode): OperationOutputExpression {
val arrayNode: ArrayNode = jsonNode.first() as ArrayNode
check(arrayNode.size() >= 4) {
throw BluePrintException(
String.format(
"missing operation output expression, " +
"it should be (<modelable_entity_name>, <interface_name>, <operation_name>, <output_variable_name>) , but present {}",
jsonNode
)
)
}
var subPropertyName: String? = null
if (arrayNode.size() == 5)
subPropertyName = arrayNode[4].asText()
return OperationOutputExpression(
modelableEntityName = arrayNode[0].asText(),
interfaceName = arrayNode[1].asText(),
operationName = arrayNode[2].asText(),
propertyName = arrayNode[3].asText(),
subPropertyName = subPropertyName
)
}
@JvmStatic
fun populateArtifactExpression(jsonNode: JsonNode): ArtifactExpression {
val arrayNode: ArrayNode = jsonNode.first() as ArrayNode
check(arrayNode.size() >= 2) {
throw BluePrintException(
String.format(
"missing artifact expression, " +
"it should be [ <modelable_entity_name>, <artifact_name>, <location>, <remove> ] , but present {}",
jsonNode
)
)
}
return ArtifactExpression(
modelableEntityName = arrayNode[0].asText(),
artifactName = arrayNode[1].asText(),
location = arrayNode[2]?.asText() ?: "LOCAL_FILE",
remove = arrayNode[3]?.asBoolean() ?: false
)
}
}
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