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     val log = logger(GrpcServerLoggingInterceptor::class)
  36     val loggingService = GrpcLoggerService()
  37
  38     override fun <ReqT : Any, RespT : Any> interceptCall(
  39         call: ServerCall<ReqT, RespT>,
  40         requestHeaders: Metadata,
  41         next: ServerCallHandler<ReqT, RespT>
  42     ):
  43             ServerCall.Listener<ReqT> {
  44
  45         val forwardingServerCall = object : ForwardingServerCall.SimpleForwardingServerCall<ReqT, RespT>(call) {
  46             override fun sendHeaders(responseHeaders: Metadata) {
  47                 loggingService.grpResponding(requestHeaders, responseHeaders)
  48                 super.sendHeaders(responseHeaders)
  49             }
  50         }
  51
  52         return object :
  53             ForwardingServerCallListener.SimpleForwardingServerCallListener<ReqT>(
  54                 next.startCall(forwardingServerCall, requestHeaders)
  55             ) {
  56
  57             override fun onMessage(message: ReqT) {
  58                 /** Get the requestId, SubRequestId and Originator Id and set in MDS context
  59                  *  If you are using other GRPC services, Implement own Logging Interceptors to get tracing.
  60                  * */
  61                 when (message) {
  62                     is ExecutionServiceInput -> {
  63                         val commonHeader = message.commonHeader
  64                             ?: throw BluePrintProcessorException("missing common header in request")
  65                         loggingService.grpcRequesting(call, commonHeader, next)
  66                     }
  67                     is BluePrintUploadInput -> {
  68                         val commonHeader = message.commonHeader
  69                             ?: throw BluePrintProcessorException("missing common header in request")
  70                         loggingService.grpcRequesting(call, commonHeader, next)
  71                     }
  72                     is BluePrintDownloadInput -> {
  73                         val commonHeader = message.commonHeader
  74                             ?: throw BluePrintProcessorException("missing common header in request")
  75                         loggingService.grpcRequesting(call, commonHeader, next)
  76                     }
  77                     is BluePrintRemoveInput -> {
  78                         val commonHeader = message.commonHeader
  79                             ?: throw BluePrintProcessorException("missing common header in request")
  80                         loggingService.grpcRequesting(call, commonHeader, next)
  81                     }
  82                     else -> {
  83                         loggingService.grpcRequesting(call, requestHeaders, next)
  84                     }
  85                 }
  86                 super.onMessage(message)
  87             }
  88
  89             override fun onComplete() {
  90                 MDC.clear()
  91                 super.onComplete()
  92             }
  93
  94             override fun onCancel() {
  95                 MDC.clear()
  96                 super.onCancel()
  97             }
  98         }
  99     }
 100 }