ZipkinConstants.java

/**
 * 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.camel.zipkin;

/**
 * Contains the header keys that are used to represent trace id, span id, parent span id, sampled.
 * <p/>
 * The names correspond with the zipkin header values.
 */
public final class ZipkinConstants {

    public static final String TRACE_ID = "X-B3-TraceId";
    public static final String SPAN_ID = "X-B3-SpanId";
    public static final String PARENT_SPAN_ID = "X-B3-ParentSpanId";
    public static final String SAMPLED = "X-B3-Sampled";

    private ZipkinConstants() {
    }

}