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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.cds.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 kotlinx.coroutines.reactive.awaitSingle
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.*
import org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api.utils.toProto
import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType
import org.onap.ccsdk.cds.controllerblueprints.core.*
import org.onap.ccsdk.cds.controllerblueprints.core.config.BluePrintPathConfiguration
import org.onap.ccsdk.cds.controllerblueprints.core.data.ErrorCode
import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintCatalogService
import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintWorkflowExecutionService
import org.onap.ccsdk.cds.controllerblueprints.core.utils.BluePrintMetadataUtils
import org.slf4j.LoggerFactory
import org.springframework.http.codec.multipart.FilePart
import org.springframework.stereotype.Service
import java.io.File
import java.io.IOException
import java.util.*
import java.util.stream.Collectors
@Service
class ExecutionServiceHandler(private val bluePrintPathConfiguration: BluePrintPathConfiguration,
private val bluePrintCatalogService: BluePrintCatalogService,
private val bluePrintWorkflowExecutionService
: BluePrintWorkflowExecutionService<ExecutionServiceInput, ExecutionServiceOutput>) {
private val log = LoggerFactory.getLogger(ExecutionServiceHandler::class.toString())
suspend fun upload(filePart: FilePart): String {
val saveId = UUID.randomUUID().toString()
val blueprintArchive = normalizedPathName(bluePrintPathConfiguration.blueprintArchivePath, saveId)
val blueprintWorking = normalizedPathName(bluePrintPathConfiguration.blueprintWorkingPath, saveId)
try {
val compressedFile = normalizedFile(blueprintArchive, "cba.zip")
compressedFile.parentFile.reCreateNBDirs()
// Copy the File Part to Local File
copyFromFilePart(filePart, compressedFile)
// Save the Copied file to Database
return bluePrintCatalogService.saveToDatabase(saveId, compressedFile, true)
} catch (e: IOException) {
throw BluePrintException(ErrorCode.IO_FILE_INTERRUPT.value,
"Error in Upload CBA: ${e.message}", e)
} finally {
deleteNBDir(blueprintArchive)
deleteNBDir(blueprintWorking)
}
}
suspend fun remove(name: String, version: String) {
bluePrintCatalogService.deleteFromDatabase(name, version)
}
suspend fun process(executionServiceInput: ExecutionServiceInput,
responseObserver: StreamObserver<org.onap.ccsdk.cds.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
try {
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
} catch (e: Exception) {
log.error("fail processing request id $requestId", e)
return response(executionServiceInput, e.localizedMessage, true)
}
}
private suspend fun copyFromFilePart(filePart: FilePart, targetFile: File): File {
return filePart.transferTo(targetFile)
.thenReturn(targetFile)
.awaitSingle()
}
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 = executionServiceInput.payload
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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