ms/blueprintsprocessor/modules/commons/grpc-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/grpc/interceptor/GrpcServerLoggingInterceptor.kt

   1 /*
   2  * Copyright © 2018-2019 AT&T Intellectual Property.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.ccsdk.cds.blueprintsprocessor.grpc.interceptor
  18
  19 import io.grpc.ForwardingServerCall
  20 import io.grpc.ForwardingServerCallListener
  21 import io.grpc.Metadata
  22 import io.grpc.ServerCall
  23 import io.grpc.ServerCallHandler
  24 import io.grpc.ServerInterceptor
  25 import org.onap.ccsdk.cds.blueprintsprocessor.grpc.service.GrpcLoggerService
  26 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
  27 import org.onap.ccsdk.cds.controllerblueprints.core.logger
  28 import org.onap.ccsdk.cds.controllerblueprints.management.api.BluePrintDownloadInput
  29 import org.onap.ccsdk.cds.controllerblueprints.management.api.BluePrintRemoveInput
  30 import org.onap.ccsdk.cds.controllerblueprints.management.api.BluePrintUploadInput
  31 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput
  32 import org.slf4j.MDC
  33
  34 class GrpcServerLoggingInterceptor : ServerInterceptor {
  35
  36     val log = logger(GrpcServerLoggingInterceptor::class)
  37     val loggingService = GrpcLoggerService()
  38
  39     override fun <ReqT : Any, RespT : Any> interceptCall(
  40         call: ServerCall<ReqT, RespT>,
  41         requestHeaders: Metadata,
  42         next: ServerCallHandler<ReqT, RespT>
  43     ):
  44         ServerCall.Listener<ReqT> {
  45
  46             val forwardingServerCall = object : ForwardingServerCall.SimpleForwardingServerCall<ReqT, RespT>(call) {
  47                 override fun sendHeaders(responseHeaders: Metadata) {
  48                     loggingService.grpResponding(requestHeaders, responseHeaders)
  49                     super.sendHeaders(responseHeaders)
  50                 }
  51             }
  52
  53             return object :
  54                 ForwardingServerCallListener.SimpleForwardingServerCallListener<ReqT>(
  55                     next.startCall(forwardingServerCall, requestHeaders)
  56                 ) {
  57
  58                 override fun onMessage(message: ReqT) {
  59                     /** Get the requestId, SubRequestId and Originator Id and set in MDS context
  60                      *  If you are using other GRPC services, Implement own Logging Interceptors to get tracing.
  61                      * */
  62                     when (message) {
  63                         is ExecutionServiceInput -> {
  64                             val commonHeader = message.commonHeader
  65                                 ?: throw BluePrintProcessorException("missing common header in request")
  66                             loggingService.grpcRequesting(call, commonHeader, next)
  67                         }
  68                         is BluePrintUploadInput -> {
  69                             val commonHeader = message.commonHeader
  70                                 ?: throw BluePrintProcessorException("missing common header in request")
  71                             loggingService.grpcRequesting(call, commonHeader, next)
  72                         }
  73                         is BluePrintDownloadInput -> {
  74                             val commonHeader = message.commonHeader
  75                                 ?: throw BluePrintProcessorException("missing common header in request")
  76                             loggingService.grpcRequesting(call, commonHeader, next)
  77                         }
  78                         is BluePrintRemoveInput -> {
  79                             val commonHeader = message.commonHeader
  80                                 ?: throw BluePrintProcessorException("missing common header in request")
  81                             loggingService.grpcRequesting(call, commonHeader, next)
  82                         }
  83                         else -> {
  84                             loggingService.grpcRequesting(call, requestHeaders, next)
  85                         }
  86                     }
  87                     super.onMessage(message)
  88                 }
  89
  90                 override fun onComplete() {
  91                     MDC.clear()
  92                     super.onComplete()
  93                 }
  94
  95                 override fun onCancel() {
  96                     MDC.clear()
  97                     super.onCancel()
  98                 }
  99             }
 100         }
 101 }