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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 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.blueprintsprocessor.selfservice.api
import com.fasterxml.jackson.databind.JsonNode
import io.swagger.annotations.Api
import io.swagger.annotations.ApiOperation
import io.swagger.annotations.ApiParam
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ACTION_MODE_ASYNC
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.cluster.optionalClusterService
import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.mdcWebCoroutineScope
import org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api.utils.determineHttpStatusCode
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintConstants
import org.onap.ccsdk.cds.controllerblueprints.core.asJsonType
import org.onap.ccsdk.cds.controllerblueprints.core.httpProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.logger
import org.onap.ccsdk.cds.controllerblueprints.core.service.BlueprintDependencyService
import org.onap.ccsdk.cds.error.catalog.core.ErrorCatalogCodes
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.http.MediaType
import org.springframework.http.ResponseEntity
import org.springframework.security.access.prepost.PreAuthorize
import org.springframework.web.bind.annotation.RequestBody
import org.springframework.web.bind.annotation.RequestMapping
import org.springframework.web.bind.annotation.RequestMethod
import org.springframework.web.bind.annotation.ResponseBody
import org.springframework.web.bind.annotation.RestController
import java.util.concurrent.Phaser
import javax.annotation.PreDestroy
@RestController
@RequestMapping("/api/v1/execution-service")
@Api(
value = "/api/v1/execution-service",
description = "Interaction with CBA."
)
open class ExecutionServiceController {
val log = logger(ExecutionServiceController::class)
private val ph = Phaser(1)
@Autowired
lateinit var executionServiceHandler: ExecutionServiceHandler
@RequestMapping(
path = ["/health-check"],
method = [RequestMethod.GET],
produces = [MediaType.APPLICATION_JSON_VALUE]
)
@ResponseBody
@ApiOperation(value = "Health Check", hidden = true)
suspend fun executionServiceControllerHealthCheck(): ResponseEntity<JsonNode> = mdcWebCoroutineScope {
var body = mutableMapOf("success" to true)
var statusCode = 200
if (BlueprintConstants.CLUSTER_ENABLED &&
BlueprintDependencyService.optionalClusterService()?.clusterJoined() != true
) {
statusCode = 503
body.remove("success")
}
ResponseEntity.status(statusCode).body(body.asJsonType())
}
@RequestMapping(path = ["/process"], method = [RequestMethod.POST], produces = [MediaType.APPLICATION_JSON_VALUE])
@ApiOperation(
value = "Execute a CBA workflow (action)",
notes = "Execute the appropriate CBA's action based on the ExecutionServiceInput object passed as input.",
produces = MediaType.APPLICATION_JSON_VALUE,
response = ExecutionServiceOutput::class
)
@ResponseBody
@PreAuthorize("hasRole('USER')")
suspend fun process(
@ApiParam(value = "ExecutionServiceInput payload.", required = true)
@RequestBody executionServiceInput: ExecutionServiceInput
): ResponseEntity<ExecutionServiceOutput> = mdcWebCoroutineScope {
if (executionServiceInput.actionIdentifiers.mode == ACTION_MODE_ASYNC) {
throw httpProcessorException(
ErrorCatalogCodes.GENERIC_FAILURE,
SelfServiceApiDomains.BLUEPRINT_PROCESSOR,
"Can't process async request through the REST endpoint. Use gRPC for async processing."
)
}
ph.register()
val processResult = executionServiceHandler.doProcess(executionServiceInput)
ph.arriveAndDeregister()
ResponseEntity(processResult, determineHttpStatusCode(processResult.status.code))
}
@PreDestroy
fun preDestroy() {
val name = "ExecutionServiceController"
log.info("Starting to shutdown $name waiting for in-flight requests to finish ...")
ph.arriveAndAwaitAdvance()
log.info("Done waiting in $name")
}
}
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