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A client to communicate with the Preservica API
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package uk.gov.nationalarchives.dp.client
import cats.MonadError
import cats.effect.Async
import cats.implicits.*
import io.circe.generic.auto.*
import sttp.client3.*
import sttp.model.Method
import uk.gov.nationalarchives.dp.client.Client.*
import uk.gov.nationalarchives.dp.client.ProcessMonitorClient.*
/** A client to retrieve Preservica Monitors
* @tparam F
* Type of the effect
*/
trait ProcessMonitorClient[F[_]]:
/** Gets Preservica monitors
* @param getMonitorsRequest
* An instance of [[ProcessMonitorClient.getMonitors]] It contains details used to get Monitors
* @return
* The Monitors requested, wrapped in the F effect.
*/
def getMonitors(getMonitorsRequest: GetMonitorsRequest): F[Seq[Monitors]]
/** Gets Preservica messages
* @param getMessagesRequest
* An instance of [[ProcessMonitorClient.getMessages]] It contains details used to get Messages
* @param start
* The message number to start at.
* @param max
* The maximum number of messages that should be returned (1000 is optimal, more than that could cause issues).
* @return
* The Messages requested, wrapped in the F effect.
*/
def getMessages(getMessagesRequest: GetMessagesRequest, start: Int = 0, max: Int = 1000): F[Seq[Message]]
/** An object containing a method which returns an implementation of the ProcessMonitorClient trait
*/
object ProcessMonitorClient:
/** Creates a new `ProcessMonitorClient` instance.
* @param clientConfig
* Configuration parameters needed to create the client
* @param me
* An implicit instance of cats.MonadError
* @param sync
* An implicit instance of cats.Sync
* @tparam F
* The type of the effect
* @return
* A new `ProcessMonitorClient`
*/
def createProcessMonitorClient[F[_]](clientConfig: ClientConfig[F, ?])(using
me: MonadError[F, Throwable],
sync: Async[F]
): ProcessMonitorClient[F] = new ProcessMonitorClient[F]:
private val apiBaseUrl: String = clientConfig.apiBaseUrl
private val client: Client[F, ?] = Client(clientConfig)
import client.*
override def getMonitors(getMonitorsRequest: GetMonitorsRequest): F[Seq[Monitors]] =
val relevantQueryParamsAsString: Map[String, String] = getQueryParamsAsMap(getMonitorsRequest)
val getMonitorsUrl = uri"$apiBaseUrl/api/processmonitor/monitors?$relevantQueryParamsAsString"
for
_ <-
me.raiseWhen(!relevantQueryParamsAsString("name").startsWith("opex"))(
PreservicaClientException("The monitor name must start with 'opex'")
)
token <- getAuthenticationToken
getMonitorsResponse <- sendJsonApiRequest[MonitorsResponse](
getMonitorsUrl.toString,
token,
Method.GET
)
yield getMonitorsResponse.value.monitors
override def getMessages(
getMessagesRequest: GetMessagesRequest,
start: Int = 0,
max: Int = 1000
): F[Seq[Message]] =
val relevantQueryParamsAsString: Map[String, String] = getQueryParamsAsMap(getMessagesRequest)
val getMessagesUrl =
uri"$apiBaseUrl/api/processmonitor/messages?$relevantQueryParamsAsString&start=$start&max=$max"
for
token <- getAuthenticationToken
messages <- monitorMessages(getMessagesUrl.toString, token, Nil)
yield messages
private def monitorMessages(url: String, token: String, amassedMessages: Seq[Message]): F[Seq[Message]] =
if url.isEmpty then me.pure(amassedMessages)
else
for
getMessagesResponse <- sendJsonApiRequest[MessagesResponse](
url,
token,
Method.GET
)
messagesResponse = getMessagesResponse.value.messages
potentialNextPageUrl = getMessagesResponse.value.paging.next.getOrElse("")
allMessages <- monitorMessages(potentialNextPageUrl, token, amassedMessages ++ messagesResponse)
yield allMessages
private def getQueryParamsAsMap(request: Product): Map[String, String] =
val getMonitorsRequestAsMap: Map[String, IterableOnce[String]] =
request.productElementNames
.zip(request.productIterator.map(_.asInstanceOf[IterableOnce[String]]))
.toMap
getMonitorsRequestAsMap.collect {
case (name, value) if value.iterator.nonEmpty => (name, value.iterator.mkString(","))
}
/** A Monitors request parameter
* @param key
* The parameter key
* @param value
* The parameter value
*/
case class Parameter(key: String, value: String)
/** A Monitors' request
* @param status
* An optional monitor status.
* @param name
* An optional monitor name.
* @param category
* A list of categories. This can be empty
*/
case class GetMonitorsRequest(
status: List[MonitorsStatus] = Nil,
name: Option[String] = None,
category: List[MonitorCategory] = Nil
):
val subcategory: List[String] = Nil
case class MonitorsResponse(success: Boolean, version: Int, value: MonitorsValue)
case class MonitorsValue(paging: Paging, monitors: Seq[Monitors])
case class Paging(next: Option[String] = None, totalResults: Int)
case class Monitors(
mappedId: String,
name: String,
status: String,
started: Option[String],
completed: Option[String],
category: String,
subcategory: String,
progressText: Option[String],
percentComplete: Option[String],
filesPending: Int,
size: Int,
filesProcessed: Int,
warnings: Int,
errors: Int,
canRetry: Boolean
)
enum MonitorsStatus:
case Running, Pending, Succeeded, Failed, Suspended, Recoverable
enum MonitorCategory:
case Ingest, Export, DataManagement, Automated
case class GetMessagesRequest(monitor: List[String] = Nil, status: List[MessageStatus] = Nil)
case class MessagesResponse(success: Boolean, version: Int, value: MessagesValue)
case class MessagesValue(paging: Paging, messages: Seq[Message])
case class Message(
workflowInstanceId: Int,
monitorName: String,
path: String,
date: String,
status: String,
displayMessage: String,
workflowName: String,
mappedMonitorId: String,
message: String,
mappedId: String,
securityDescriptor: Option[String] = None,
entityTitle: Option[String] = None,
entityRef: Option[String] = None,
sourceId: Option[String] = None
)
enum MessageStatus:
case Error, Info, Debug, Warning