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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 2019 Bell Canada.
* 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.designer.api
import com.google.protobuf.ByteString
import com.google.protobuf.util.JsonFormat
import io.grpc.stub.StreamObserver
import kotlinx.coroutines.runBlocking
import org.onap.ccsdk.cds.blueprintsprocessor.designer.api.handler.BlueprintModelHandler
import org.onap.ccsdk.cds.controllerblueprints.common.api.CommonHeader
import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType
import org.onap.ccsdk.cds.controllerblueprints.common.api.Status
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintConstants
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.asJsonString
import org.onap.ccsdk.cds.controllerblueprints.core.emptyTONull
import org.onap.ccsdk.cds.controllerblueprints.core.utils.currentTimestamp
import org.onap.ccsdk.cds.controllerblueprints.management.api.BlueprintBootstrapInput
import org.onap.ccsdk.cds.controllerblueprints.management.api.BlueprintDownloadInput
import org.onap.ccsdk.cds.controllerblueprints.management.api.BlueprintManagementOutput
import org.onap.ccsdk.cds.controllerblueprints.management.api.BlueprintManagementServiceGrpc
import org.onap.ccsdk.cds.controllerblueprints.management.api.BlueprintRemoveInput
import org.onap.ccsdk.cds.controllerblueprints.management.api.BlueprintUploadInput
import org.onap.ccsdk.cds.controllerblueprints.management.api.DownloadAction
import org.onap.ccsdk.cds.controllerblueprints.management.api.FileChunk
import org.onap.ccsdk.cds.controllerblueprints.management.api.RemoveAction
import org.onap.ccsdk.cds.controllerblueprints.management.api.UploadAction
import org.onap.ccsdk.cds.error.catalog.core.ErrorCatalogCodes
import org.onap.ccsdk.cds.error.catalog.core.GrpcErrorCodes
import org.onap.ccsdk.cds.error.catalog.core.utils.errorMessageOrDefault
import org.onap.ccsdk.cds.error.catalog.services.ErrorCatalogService
import org.slf4j.LoggerFactory
import org.springframework.security.access.prepost.PreAuthorize
import org.springframework.stereotype.Service
// TODO("Convert to coroutines handler")
@Service
open class BlueprintManagementGRPCHandler(
private val bluePrintModelHandler: BlueprintModelHandler,
private val errorCatalogService: ErrorCatalogService
) :
BlueprintManagementServiceGrpc.BlueprintManagementServiceImplBase() {
private val log = LoggerFactory.getLogger(BlueprintManagementGRPCHandler::class.java)
@PreAuthorize("hasRole('USER')")
override fun uploadBlueprint(
request: BlueprintUploadInput,
responseObserver: StreamObserver<BlueprintManagementOutput>
) {
runBlocking {
// TODO("catch if request id is missing")
log.info("request(${request.commonHeader.requestId})")
try {
/** Get the file byte array */
val byteArray = request.fileChunk.chunk.toByteArray()
/** Get the Upload Action */
val uploadAction = request.actionIdentifiers?.actionName.emptyTONull()
?: UploadAction.DRAFT.toString()
when (uploadAction) {
UploadAction.DRAFT.toString() -> {
val blueprintModel = bluePrintModelHandler.upload(byteArray, false)
responseObserver.onNext(successStatus(request.commonHeader, blueprintModel.asJsonString()))
}
UploadAction.PUBLISH.toString() -> {
val blueprintModel = bluePrintModelHandler.upload(byteArray, true)
responseObserver.onNext(successStatus(request.commonHeader, blueprintModel.asJsonString()))
}
UploadAction.VALIDATE.toString() -> {
// TODO("Not Implemented")
responseObserver.onNext(
failStatus(
request.commonHeader,
"Upload action($uploadAction) not implemented",
BlueprintProcessorException("Not Implemented")
)
)
}
UploadAction.ENRICH.toString() -> {
val enrichedByteArray = bluePrintModelHandler.enrichBlueprintFileSource(byteArray)
responseObserver.onNext(outputWithFileBytes(request.commonHeader, enrichedByteArray))
}
else -> {
responseObserver.onNext(
failStatus(
request.commonHeader,
"Upload action($uploadAction) not implemented",
BlueprintProcessorException("Not implemented")
)
)
}
}
} catch (e: Exception) {
responseObserver.onNext(
failStatus(
request.commonHeader,
"request(${request.commonHeader.requestId}): Failed to upload CBA", e
)
)
} finally {
responseObserver.onCompleted()
}
}
}
@PreAuthorize("hasRole('USER')")
override fun downloadBlueprint(
request: BlueprintDownloadInput,
responseObserver: StreamObserver<BlueprintManagementOutput>
) {
runBlocking {
val blueprintName = request.actionIdentifiers.blueprintName
val blueprintVersion = request.actionIdentifiers.blueprintVersion
val blueprint = "blueprint $blueprintName:$blueprintVersion"
/** Get the Search Action */
val searchAction = request.actionIdentifiers?.actionName.emptyTONull()
?: DownloadAction.SEARCH.toString()
log.info("request(${request.commonHeader.requestId}): Received download $blueprint")
try {
when (searchAction) {
DownloadAction.SEARCH.toString() -> {
val downloadByteArray = bluePrintModelHandler.download(blueprintName, blueprintVersion)
responseObserver.onNext(outputWithFileBytes(request.commonHeader, downloadByteArray))
}
else -> {
responseObserver.onNext(
failStatus(
request.commonHeader,
"Search action($searchAction) not implemented",
BlueprintProcessorException("Not implemented")
)
)
}
}
} catch (e: Exception) {
responseObserver.onNext(
failStatus(
request.commonHeader,
"request(${request.commonHeader.requestId}): Failed to delete $blueprint", e
)
)
} finally {
responseObserver.onCompleted()
}
}
}
@PreAuthorize("hasRole('USER')")
override fun removeBlueprint(
request: BlueprintRemoveInput,
responseObserver:
StreamObserver<BlueprintManagementOutput>
) {
runBlocking {
val blueprintName = request.actionIdentifiers.blueprintName
val blueprintVersion = request.actionIdentifiers.blueprintVersion
val blueprint = "blueprint $blueprintName:$blueprintVersion"
log.info("request(${request.commonHeader.requestId}): Received delete $blueprint")
/** Get the Remove Action */
val removeAction = request.actionIdentifiers?.actionName.emptyTONull()
?: RemoveAction.DEFAULT.toString()
try {
when (removeAction) {
RemoveAction.DEFAULT.toString() -> {
bluePrintModelHandler.deleteBlueprintModel(blueprintName, blueprintVersion)
responseObserver.onNext(successStatus(request.commonHeader))
}
else -> {
responseObserver.onNext(
failStatus(
request.commonHeader,
"Remove action($removeAction) not implemented",
BlueprintProcessorException("Not implemented")
)
)
}
}
} catch (e: Exception) {
responseObserver.onNext(
failStatus(
request.commonHeader,
"request(${request.commonHeader.requestId}): Failed to delete $blueprint", e
)
)
} finally {
responseObserver.onCompleted()
}
}
}
override fun bootstrapBlueprint(
request: BlueprintBootstrapInput,
responseObserver: StreamObserver<BlueprintManagementOutput>
) {
runBlocking {
try {
log.info("request(${request.commonHeader.requestId}): Received bootstrap request")
val bootstrapRequest = BootstrapRequest().apply {
loadModelType = request.loadModelType
loadResourceDictionary = request.loadResourceDictionary
loadCBA = request.loadCBA
}
/** Perform bootstrap of Model Types, Resource Definitions and CBA */
bluePrintModelHandler.bootstrapBlueprint(bootstrapRequest)
responseObserver.onNext(successStatus(request.commonHeader))
} catch (e: Exception) {
responseObserver.onNext(
failStatus(
request.commonHeader,
"request(${request.commonHeader.requestId}): Failed to bootstrap", e
)
)
} finally {
responseObserver.onCompleted()
}
}
}
private fun outputWithFileBytes(header: CommonHeader, byteArray: ByteArray): BlueprintManagementOutput =
BlueprintManagementOutput.newBuilder()
.setCommonHeader(header)
.setFileChunk(FileChunk.newBuilder().setChunk(ByteString.copyFrom(byteArray)))
.setStatus(
Status.newBuilder()
.setTimestamp(currentTimestamp())
.setEventType(EventType.EVENT_COMPONENT_EXECUTED)
.setMessage(BlueprintConstants.STATUS_SUCCESS)
.setCode(200)
.build()
)
.build()
private fun successStatus(header: CommonHeader, propertyContent: String? = null): BlueprintManagementOutput {
// Populate Response Payload
val propertiesBuilder = BlueprintManagementOutput.newBuilder().propertiesBuilder
propertyContent?.let {
JsonFormat.parser().merge(propertyContent, propertiesBuilder)
}
return BlueprintManagementOutput.newBuilder()
.setCommonHeader(header)
.setProperties(propertiesBuilder.build())
.setStatus(
Status.newBuilder()
.setTimestamp(currentTimestamp())
.setMessage(BlueprintConstants.STATUS_SUCCESS)
.setEventType(EventType.EVENT_COMPONENT_EXECUTED)
.setCode(200)
.build()
)
.build()
}
private fun failStatus(header: CommonHeader, message: String, e: Exception): BlueprintManagementOutput {
log.error(message, e)
return if (e is BlueprintProcessorException) onErrorCatalog(header, message, e) else onError(header, message, e)
}
private fun onError(header: CommonHeader, message: String, error: Exception): BlueprintManagementOutput {
val code = GrpcErrorCodes.code(ErrorCatalogCodes.GENERIC_FAILURE)
return BlueprintManagementOutput.newBuilder()
.setCommonHeader(header)
.setStatus(
Status.newBuilder()
.setTimestamp(currentTimestamp())
.setMessage(BlueprintConstants.STATUS_FAILURE)
.setEventType(EventType.EVENT_COMPONENT_FAILURE)
.setErrorMessage("Error : $message \n Details: ${error.errorMessageOrDefault()}")
.setCode(code)
.build()
)
.build()
}
private fun onErrorCatalog(header: CommonHeader, message: String, error: BlueprintProcessorException):
BlueprintManagementOutput {
val err = if (error.protocol == "") {
error.grpc(ErrorCatalogCodes.GENERIC_FAILURE)
} else {
error.convertToGrpc()
}
val errorPayload = errorCatalogService.errorPayload(err.addErrorPayloadMessage(message))
return BlueprintManagementOutput.newBuilder()
.setCommonHeader(header)
.setStatus(
Status.newBuilder()
.setTimestamp(currentTimestamp())
.setMessage(BlueprintConstants.STATUS_FAILURE)
.setEventType(EventType.EVENT_COMPONENT_FAILURE)
.setErrorMessage("Error : ${errorPayload.message}")
.setCode(errorPayload.code)
.build()
)
.build()
}
}
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