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/*
* Copyright © 2018-2019 AT&T Intellectual Property.
*
* 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.grpc.interceptor
import io.grpc.ForwardingServerCall
import io.grpc.ForwardingServerCallListener
import io.grpc.Metadata
import io.grpc.ServerCall
import io.grpc.ServerCallHandler
import io.grpc.ServerInterceptor
import org.onap.ccsdk.cds.blueprintsprocessor.grpc.service.GrpcLoggerService
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.logger
import org.onap.ccsdk.cds.controllerblueprints.management.api.BluePrintDownloadInput
import org.onap.ccsdk.cds.controllerblueprints.management.api.BluePrintRemoveInput
import org.onap.ccsdk.cds.controllerblueprints.management.api.BluePrintUploadInput
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput
import org.slf4j.MDC
class GrpcServerLoggingInterceptor : ServerInterceptor {
val log = logger(GrpcServerLoggingInterceptor::class)
val loggingService = GrpcLoggerService()
override fun <ReqT : Any, RespT : Any> interceptCall(
call: ServerCall<ReqT, RespT>,
requestHeaders: Metadata,
next: ServerCallHandler<ReqT, RespT>
):
ServerCall.Listener<ReqT> {
val forwardingServerCall = object : ForwardingServerCall.SimpleForwardingServerCall<ReqT, RespT>(call) {
override fun sendHeaders(responseHeaders: Metadata) {
loggingService.grpResponding(requestHeaders, responseHeaders)
super.sendHeaders(responseHeaders)
}
}
return object :
ForwardingServerCallListener.SimpleForwardingServerCallListener<ReqT>(
next.startCall(forwardingServerCall, requestHeaders)
) {
override fun onMessage(message: ReqT) {
/** Get the requestId, SubRequestId and Originator Id and set in MDS context
* If you are using other GRPC services, Implement own Logging Interceptors to get tracing.
* */
when (message) {
is ExecutionServiceInput -> {
val commonHeader = message.commonHeader
?: throw BluePrintProcessorException("missing common header in request")
loggingService.grpcRequesting(call, commonHeader, next)
}
is BluePrintUploadInput -> {
val commonHeader = message.commonHeader
?: throw BluePrintProcessorException("missing common header in request")
loggingService.grpcRequesting(call, commonHeader, next)
}
is BluePrintDownloadInput -> {
val commonHeader = message.commonHeader
?: throw BluePrintProcessorException("missing common header in request")
loggingService.grpcRequesting(call, commonHeader, next)
}
is BluePrintRemoveInput -> {
val commonHeader = message.commonHeader
?: throw BluePrintProcessorException("missing common header in request")
loggingService.grpcRequesting(call, commonHeader, next)
}
else -> {
loggingService.grpcRequesting(call, requestHeaders, next)
}
}
super.onMessage(message)
}
override fun onComplete() {
MDC.clear()
super.onComplete()
}
override fun onCancel() {
MDC.clear()
super.onCancel()
}
}
}
}
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