hu.icellmobilsoft.coffee.grpc.metrics.micrometer.server.MetricsServerCall Maven / Gradle / Ivy
/*-
* #%L
* Coffee
* %%
* Copyright (C) 2020 - 2023 i-Cell Mobilsoft Zrt.
* %%
* 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.
* #L%
*/
package hu.icellmobilsoft.coffee.grpc.metrics.micrometer.server;
import hu.icellmobilsoft.coffee.grpc.metrics.micrometer.bundle.MetricsBundle;
import io.grpc.ForwardingServerCall;
import io.grpc.Metadata;
import io.grpc.MethodDescriptor;
import io.grpc.ServerCall;
import io.grpc.Status;
import io.grpc.Status.Code;
/**
*
* Forwarding server call to handle metrics. Handles response counter metrics.
*
* @author czenczl
* @author Imre Scheffer
* @since 2.5.0
*
* @param
* The type of message received.
* @param
* The type of message sent.
*/
public class MetricsServerCall extends ForwardingServerCall.SimpleForwardingServerCall {
private Code responseCode = Code.UNKNOWN;
private MetricsBundle metricBundle;
/**
* Creates a new server call to collect metrics
*
* @param delegate
* original call
* @param metricBundle
* counter and timer function container
*/
public MetricsServerCall(ServerCall delegate, MetricsBundle metricBundle) {
super(delegate);
this.metricBundle = metricBundle;
}
/**
* Gets the server response code to use with mertics data
*
* @return server response code
*/
public Code getResponseCode() {
return this.responseCode;
}
@Override
protected ServerCall delegate() {
return super.delegate();
}
@Override
public MethodDescriptor getMethodDescriptor() {
return super.getMethodDescriptor();
}
@Override
public void sendMessage(RespT message) {
super.sendMessage(message);
}
@Override
public void close(Status status, Metadata trailers) {
// set status code for metric
this.responseCode = status.getCode();
// inc response counter because communication close
metricBundle.getResponseCounter().increment();
super.close(status, trailers);
}
}