com.navercorp.pinpoint.grpc.server.TransportMetadataServerInterceptor Maven / Gradle / Ivy
/*
* Copyright 2019 NAVER Corp.
*
* 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 com.navercorp.pinpoint.grpc.server;
import io.grpc.Attributes;
import io.grpc.Context;
import io.grpc.Contexts;
import io.grpc.Metadata;
import io.grpc.ServerCall;
import io.grpc.ServerCallHandler;
import io.grpc.ServerInterceptor;
import io.grpc.Status;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Woonduk Kang(emeroad)
*/
public class TransportMetadataServerInterceptor implements ServerInterceptor {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
public TransportMetadataServerInterceptor() {
}
@Override
public ServerCall.Listener interceptCall(final ServerCall serverCall, Metadata headers, ServerCallHandler serverCallHandler) {
final Attributes attributes = serverCall.getAttributes();
final TransportMetadata transportMetadata = attributes.get(MetadataServerTransportFilter.TRANSPORT_METADATA_KEY);
if (transportMetadata == null) {
if (logger.isInfoEnabled()) {
logger.info("Close call. cause=transportMetadata is null, headers={}, attributes={}", headers, serverCall.getAttributes());
}
serverCall.close(Status.INTERNAL.withDescription("transportMetadata is null"), new Metadata());
return new ServerCall.Listener() {
};
}
final Context currentContext = Context.current();
final Context newContext = currentContext.withValue(ServerContext.getTransportMetadataKey(), transportMetadata);
if (logger.isDebugEnabled()) {
logger.debug("bind metadata method={}, headers={}, attr={}", serverCall.getMethodDescriptor().getFullMethodName(), headers, serverCall.getAttributes());
}
ServerCall.Listener listener = Contexts.interceptCall(newContext, serverCall, headers, serverCallHandler);
return listener;
}
}