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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 2019 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.blueprintsprocessor.selfservice.api
import com.fasterxml.jackson.databind.node.JsonNodeFactory
import io.grpc.stub.StreamObserver
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import org.onap.ccsdk.apps.blueprintsprocessor.core.BluePrintCoreConfiguration
import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ACTION_MODE_ASYNC
import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ACTION_MODE_SYNC
import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceInput
import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceOutput
import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.Status
import org.onap.ccsdk.apps.blueprintsprocessor.selfservice.api.utils.saveCBAFile
import org.onap.ccsdk.apps.blueprintsprocessor.selfservice.api.utils.toProto
import org.onap.ccsdk.apps.controllerblueprints.common.api.EventType
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintException
import org.onap.ccsdk.apps.controllerblueprints.core.interfaces.BluePrintCatalogService
import org.onap.ccsdk.apps.controllerblueprints.core.interfaces.BluePrintWorkflowExecutionService
import org.onap.ccsdk.apps.controllerblueprints.core.utils.BluePrintFileUtils
import org.onap.ccsdk.apps.controllerblueprints.core.utils.BluePrintMetadataUtils
import org.slf4j.LoggerFactory
import org.springframework.http.codec.multipart.FilePart
import org.springframework.stereotype.Service
import reactor.core.publisher.Mono
import java.util.stream.Collectors
@Service
class ExecutionServiceHandler(private val bluePrintCoreConfiguration: BluePrintCoreConfiguration,
private val bluePrintCatalogService: BluePrintCatalogService,
private val bluePrintWorkflowExecutionService
: BluePrintWorkflowExecutionService<ExecutionServiceInput, ExecutionServiceOutput>) {
private val log = LoggerFactory.getLogger(ExecutionServiceHandler::class.toString())
fun upload(filePart: FilePart): Mono<String> {
try {
val archivedPath = BluePrintFileUtils.getCbaStorageDirectory(bluePrintCoreConfiguration.archivePath)
val cbaPath = saveCBAFile(filePart, archivedPath)
bluePrintCatalogService.saveToDatabase(cbaPath.toFile()).let {
return Mono.just("{\"status\": \"Successfully uploaded blueprint with id($it)\"}")
}
} catch (e: Exception) {
return Mono.error<String>(BluePrintException("Error uploading the CBA file.", e))
}
}
suspend fun process(executionServiceInput: ExecutionServiceInput,
responseObserver: StreamObserver<org.onap.ccsdk.apps.controllerblueprints.processing.api.ExecutionServiceOutput>) {
when {
executionServiceInput.actionIdentifiers.mode == ACTION_MODE_ASYNC -> {
GlobalScope.launch(Dispatchers.Default) {
val executionServiceOutput = doProcess(executionServiceInput)
responseObserver.onNext(executionServiceOutput.toProto())
responseObserver.onCompleted()
}
responseObserver.onNext(response(executionServiceInput).toProto())
}
executionServiceInput.actionIdentifiers.mode == ACTION_MODE_SYNC -> {
val executionServiceOutput = doProcess(executionServiceInput)
responseObserver.onNext(executionServiceOutput.toProto())
responseObserver.onCompleted()
}
else -> responseObserver.onNext(response(executionServiceInput,
"Failed to process request, 'actionIdentifiers.mode' not specified. Valid value are: 'sync' or 'async'.",
true).toProto());
}
}
suspend fun doProcess(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
val requestId = executionServiceInput.commonHeader.requestId
log.info("processing request id $requestId")
val actionIdentifiers = executionServiceInput.actionIdentifiers
val blueprintName = actionIdentifiers.blueprintName
val blueprintVersion = actionIdentifiers.blueprintVersion
val basePath = bluePrintCatalogService.getFromDatabase(blueprintName, blueprintVersion)
log.info("blueprint base path $basePath")
val blueprintRuntimeService = BluePrintMetadataUtils.getBluePrintRuntime(requestId, basePath.toString())
val output = bluePrintWorkflowExecutionService.executeBluePrintWorkflow(blueprintRuntimeService,
executionServiceInput, hashMapOf())
val errors = blueprintRuntimeService.getBluePrintError().errors
if (errors.isNotEmpty()) {
val errorMessage = errors.stream().map { it.toString() }.collect(Collectors.joining(", "))
setErrorStatus(errorMessage, output.status)
}
return output
}
private fun setErrorStatus(errorMessage: String, status: Status) {
status.errorMessage = errorMessage
status.eventType = EventType.EVENT_COMPONENT_FAILURE.name
status.code = 500
status.message = BluePrintConstants.STATUS_FAILURE
}
private fun response(executionServiceInput: ExecutionServiceInput, errorMessage: String = "",
failure: Boolean = false): ExecutionServiceOutput {
val executionServiceOutput = ExecutionServiceOutput()
executionServiceOutput.commonHeader = executionServiceInput.commonHeader
executionServiceOutput.actionIdentifiers = executionServiceInput.actionIdentifiers
executionServiceOutput.payload = JsonNodeFactory.instance.objectNode()
val status = Status()
if (failure) {
setErrorStatus(errorMessage, status)
} else {
status.eventType = EventType.EVENT_COMPONENT_PROCESSING.name
status.code = 200
status.message = BluePrintConstants.STATUS_PROCESSING
}
executionServiceOutput.status = status
return executionServiceOutput
}
}
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