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Apache EventMesh

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/*
 * 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.eventmesh.runtime.trace;

import io.opentelemetry.api.trace.Span;
import io.opentelemetry.context.ContextKey;

/**
 * Makes span keys for specific instrumentation accessible to enrich and suppress spans.
 */
public final class SpanKey {
    // server span key
    public static final ContextKey SERVER_KEY =
            ContextKey.named("opentelemetry-traces-span-key-server");

    // client span keys
    public static final ContextKey HTTP_CLIENT_KEY =
            ContextKey.named("opentelemetry-traces-span-key-http");
    public static final ContextKey RPC_CLIENT_KEY =
            ContextKey.named("opentelemetry-traces-span-key-rpc");
    public static final ContextKey DB_CLIENT_KEY =
            ContextKey.named("opentelemetry-traces-span-key-db");

    // this is used instead of above, depending on the configuration value for
    // otel.instrumentation.experimental.outgoing-span-suppression-by-type
    public static final ContextKey CLIENT_KEY =
            ContextKey.named("opentelemetry-traces-span-key-client");

    // producer & consumer (messaging) span keys
    public static final ContextKey PRODUCER_KEY =
            ContextKey.named("opentelemetry-traces-span-key-producer");
    public static final ContextKey CONSUMER_RECEIVE_KEY =
            ContextKey.named("opentelemetry-traces-span-key-consumer-receive");
    public static final ContextKey CONSUMER_PROCESS_KEY =
            ContextKey.named("opentelemetry-traces-span-key-consumer-process");
}