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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.service
import io.grpc.Grpc
import io.grpc.Metadata
import io.grpc.ServerCall
import io.grpc.ServerCallHandler
import org.onap.ccsdk.cds.blueprintsprocessor.grpc.getStringKey
import org.onap.ccsdk.cds.blueprintsprocessor.grpc.putStringKeyValue
import org.onap.ccsdk.cds.controllerblueprints.common.api.CommonHeader
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants.ONAP_INVOCATION_ID
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants.ONAP_PARTNER_NAME
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants.ONAP_REQUEST_ID
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.defaultToEmpty
import org.onap.ccsdk.cds.controllerblueprints.core.defaultToUUID
import org.onap.ccsdk.cds.controllerblueprints.core.logger
import org.slf4j.MDC
import java.net.InetAddress
import java.net.InetSocketAddress
import java.time.ZoneOffset
import java.time.ZonedDateTime
import java.time.format.DateTimeFormatter
import java.util.UUID
class GrpcLoggerService {
private val log = logger(GrpcLoggerService::class)
/** Used when server receives request */
fun <ReqT : Any, RespT : Any> grpcRequesting(
call: ServerCall<ReqT, RespT>,
headers: Metadata,
next: ServerCallHandler<ReqT, RespT>
) {
val requestID = headers.getStringKey(ONAP_REQUEST_ID).defaultToUUID()
val invocationID = headers.getStringKey(ONAP_INVOCATION_ID).defaultToUUID()
val partnerName = headers.getStringKey(ONAP_PARTNER_NAME) ?: "UNKNOWN"
grpcRequesting(requestID, invocationID, partnerName, call)
}
fun <ReqT : Any, RespT : Any> grpcRequesting(
call: ServerCall<ReqT, RespT>,
headers: CommonHeader,
next: ServerCallHandler<ReqT, RespT>
) {
val requestID = headers.requestId.defaultToUUID()
val invocationID = headers.subRequestId.defaultToUUID()
val partnerName = headers.originatorId ?: "UNKNOWN"
grpcRequesting(requestID, invocationID, partnerName, call)
}
fun <ReqT : Any, RespT : Any> grpcRequesting(
requestID: String,
invocationID: String,
partnerName: String,
call: ServerCall<ReqT, RespT>
) {
val localhost = InetAddress.getLocalHost()
val clientSocketAddress = call.attributes.get(Grpc.TRANSPORT_ATTR_REMOTE_ADDR) as? InetSocketAddress
?: throw BluePrintProcessorException("failed to get client address")
val serviceName = call.methodDescriptor.fullMethodName
MDC.put("InvokeTimestamp", ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT))
MDC.put("RequestID", requestID)
MDC.put("InvocationID", invocationID)
MDC.put("PartnerName", partnerName)
MDC.put("ClientIPAddress", clientSocketAddress.address.defaultToEmpty())
MDC.put("ServerFQDN", localhost.hostName.defaultToEmpty())
MDC.put("ServiceName", serviceName)
log.trace("MDC Properties : ${MDC.getCopyOfContextMap()}")
}
/** Used before invoking any GRPC outbound request, Inbound Invocation ID is used as request Id
* for outbound Request, If invocation Id is missing then default Request Id will be generated.
*/
fun grpcInvoking(requestHeader: Metadata) {
requestHeader.putStringKeyValue(ONAP_REQUEST_ID, MDC.get("InvocationID").defaultToUUID())
requestHeader.putStringKeyValue(ONAP_INVOCATION_ID, UUID.randomUUID().toString())
requestHeader.putStringKeyValue(ONAP_PARTNER_NAME, BluePrintConstants.APP_NAME)
}
/** Used when server returns response */
fun grpResponding(requestHeaders: Metadata, responseHeaders: Metadata) {
try {
responseHeaders.putStringKeyValue(ONAP_REQUEST_ID, MDC.get("RequestID").defaultToEmpty())
responseHeaders.putStringKeyValue(ONAP_INVOCATION_ID, MDC.get("InvocationID").defaultToEmpty())
responseHeaders.putStringKeyValue(ONAP_PARTNER_NAME, MDC.get("PartnerName").defaultToEmpty())
} catch (e: Exception) {
log.warn("couldn't set grpc response headers", e)
}
}
}
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