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36 package gr.grnet.aquarium.connector.handler
38 import gr.grnet.aquarium.Aquarium
39 import gr.grnet.aquarium.actor.message.event.ProcessResourceEvent
40 import gr.grnet.aquarium.converter.JsonTextFormat
41 import gr.grnet.aquarium.event.model.resource.{StdResourceEvent, ResourceEventModel}
42 import gr.grnet.aquarium.store.LocalFSEventStore
43 import gr.grnet.aquarium.util._
44 import org.slf4j.Logger
47 * A [[gr.grnet.aquarium.connector.handler.PayloadHandler]] for
48 * [[gr.grnet.aquarium.event.model.resource.ResourceEventModel]]s.
50 * @author Christos KK Loverdos <loverdos@gmail.com>
53 class ResourceEventPayloadHandler(aquarium: Aquarium, logger: Logger)
54 extends GenericPayloadHandler[ResourceEventModel](
55 // jsonParser: Array[Byte] ⇒ JsonTextFormat
57 aquarium.converters.convertEx[JsonTextFormat](payload)
60 // onJsonParserSuccess: (Array[Byte], JsonTextFormat) ⇒ Unit
61 (payload, jsonTextFormat) ⇒ {
64 // onJsonParserError: (Array[Byte], Throwable) ⇒ Unit
66 val errMsg = "Error creating JSON from %s payload".format(Tags.ResourceEventTag)
67 LogHelpers.logChainOfCauses(logger, error, errMsg)
68 logger.error(errMsg, error)
70 LocalFSEventStore.storeUnparsedResourceEvent(aquarium, payload, error)
73 // eventParser: JsonTextFormat ⇒ E
75 StdResourceEvent.fromJsonTextFormat(jsonTextFormat)
78 // onEventParserSuccess: (Array[Byte], E) ⇒ Unit
80 LocalFSEventStore.storeResourceEvent(aquarium, event, payload)
83 // onEventParserError: (Array[Byte], Throwable) ⇒ Unit
85 val errMsg = "Error creating object model from %s payload".format(Tags.ResourceEventTag)
86 LogHelpers.logChainOfCauses(logger, error, errMsg)
87 logger.error(errMsg, error)
89 LocalFSEventStore.storeUnparsedResourceEvent(aquarium, payload, error)
92 // preSaveAction: E ⇒ Option[HandlerResult]
94 val className = shortClassNameOf(rcEvent)
97 // Let's decide if it is OK to store the event
98 // Remember that OK == None as the returning result
100 // NOTE: If anything goes wrong with this function, then the handler
101 // (handlePayload in GenericPayloadHandler) will issue a Resend,
102 // so do not bother to catch exceptions here.
104 // 1. Check if the same ID exists. Note that we use the ID sent by the event producer.
105 // It is a requirement that this ID is unique.
106 val store = aquarium.resourceEventStore
107 store.findResourceEventByID(id) match {
109 // Reject the duplicate
110 Some(HandlerResultReject("Duplicate %s with id = %s".format(className, id)))
119 aquarium.resourceEventStore.insertResourceEvent(rcEvent)
122 // forwardAction: S ⇒ Unit
124 aquarium.akkaService.getOrCreateUserActor(rcEvent.userID) ! ProcessResourceEvent(rcEvent)