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/*
* Copyright © 2018-2019 AT&T Intellectual Property.
*
* 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.blueprintsprocessor.services.execution
import com.fasterxml.jackson.databind.JsonNode
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceOutput
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.Status
import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintConstants
import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BlueprintFunctionNode
import org.onap.ccsdk.cds.controllerblueprints.core.jsonPathParse
import org.onap.ccsdk.cds.controllerblueprints.core.logger
import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
/** This implementation is used to build services, which doesn't need blueprints */
abstract class AbstractServiceFunction : BlueprintFunctionNode<ExecutionServiceInput, ExecutionServiceOutput> {
@Transient
private val log = logger(AbstractServiceFunction::class)
lateinit var executionServiceInput: ExecutionServiceInput
var executionServiceOutput = ExecutionServiceOutput()
lateinit var processId: String
lateinit var actionName: String
lateinit var responseActionPayload: JsonNode
override fun getName(): String {
return actionName
}
override suspend fun prepareRequestNB(executionRequest: ExecutionServiceInput): ExecutionServiceInput {
this.executionServiceInput = executionRequest
actionName = executionRequest.actionIdentifiers.actionName
check(actionName.isNotEmpty()) { "couldn't get action name" }
processId = executionRequest.commonHeader.requestId
check(processId.isNotEmpty()) { "couldn't get process id for service action($actionName)" }
return executionRequest
}
override suspend fun applyNB(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
try {
prepareRequestNB(executionServiceInput)
processNB(executionServiceInput)
} catch (runtimeException: RuntimeException) {
log.error("failed in ${getName()} : ${runtimeException.message}", runtimeException)
recoverNB(runtimeException, executionServiceInput)
}
return prepareResponseNB()
}
override suspend fun prepareResponseNB(): ExecutionServiceOutput {
log.debug("Preparing Response...")
executionServiceOutput.commonHeader = executionServiceInput.commonHeader
executionServiceOutput.actionIdentifiers = executionServiceInput.actionIdentifiers
var status = Status()
try {
// Set the Response Payload
executionServiceOutput.payload = JacksonUtils.objectMapper.createObjectNode()
executionServiceOutput.payload.set<JsonNode>("$actionName-response", responseActionPayload)
// Set the Default Step Status
status.eventType = EventType.EVENT_COMPONENT_EXECUTED.name
} catch (e: Exception) {
status.message = BlueprintConstants.STATUS_FAILURE
status.eventType = EventType.EVENT_COMPONENT_FAILURE.name
}
executionServiceOutput.status = status
return this.executionServiceOutput
}
fun setResponsePayloadForAction(actionPayload: JsonNode) {
this.responseActionPayload = actionPayload
}
/**
* Get Execution Input Payload data
*/
fun requestPayload(): JsonNode? {
return executionServiceInput.payload
}
/**
* Get Execution Input payload action property with [expression]
* ex: requestPayloadActionProperty("data") will look for path "payload/<action-name>-request/data"
*/
fun requestPayloadActionProperty(expression: String?): JsonNode? {
val requestExpression = if (expression.isNullOrBlank()) {
"$actionName-request"
} else {
"$actionName-request.$expression"
}
return executionServiceInput.payload.jsonPathParse(".$requestExpression")
}
}
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