org.apache.dubbo.tracing.DubboObservationDocumentation Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of dubbo Show documentation
The all in one project of dubbo
The newest version!
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.dubbo.tracing;

import io.micrometer.common.docs.KeyName;
import io.micrometer.common.lang.NonNullApi;
import io.micrometer.observation.Observation;
import io.micrometer.observation.ObservationConvention;
import io.micrometer.observation.docs.ObservationDocumentation;

/**
 * Documentation of Dubbo observations.
 */
public enum DubboObservationDocumentation implements ObservationDocumentation {

    /**
     * Server side Dubbo RPC Observation.
     */
    SERVER {
        @Override
        public Class> getDefaultConvention() {
            return DefaultDubboServerObservationConvention.class;
        }

        @Override
        public KeyName[] getLowCardinalityKeyNames() {
            return LowCardinalityKeyNames.values();
        }
    },

    /**
     * Client side Dubbo RPC Observation.
     */
    CLIENT {
        @Override
        public Class> getDefaultConvention() {
            return DefaultDubboClientObservationConvention.class;
        }

        @Override
        public KeyName[] getLowCardinalityKeyNames() {
            return LowCardinalityKeyNames.values();
        }
    };

    @NonNullApi
    enum LowCardinalityKeyNames implements KeyName {

        /**
         * A string identifying the remoting system.
         * Must be "apache_dubbo".
         */
        RPC_SYSTEM {
            @Override
            public String asString() {
                return "rpc.system";
            }
        },

        /**
         * The full (logical) name of the service being called, including its package name, if applicable.
         * Example: "myservice.EchoService".
         */
        RPC_SERVICE {
            @Override
            public String asString() {
                return "rpc.service";
            }
        },

        /**
         * The name of the (logical) method being called, must be equal to the $method part in the span name.
         * Example: "exampleMethod".
         */
        RPC_METHOD {
            @Override
            public String asString() {
                return "rpc.method";
            }
        },

        /**
         * RPC server host name.
         * Example: "example.com".
         */
        NET_PEER_NAME {
            @Override
            public String asString() {
                return "net.peer.name";
            }
        },

        /**
         * Logical remote port number.
         * Example: 80; 8080; 443.
         */
        NET_PEER_PORT {
            @Override
            public String asString() {
                return "net.peer.port";
            }
        }
    }
}