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Jaeger Java bindings for OpenTracing API

There is a newer version: 0.27.0

/*
 * Copyright (c) 2016, Uber Technologies, Inc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.uber.jaeger;

public class Constants {
    // TODO these should be configurable
    public static final String X_UBER_SOURCE = "x-uber-source";

    public static final int MAX_ANNOTATION_LENGTH = 256;

    /**
     * Span tag key to describe the type of sampler used on the root span.
     */
    public static final String SAMPLER_TYPE_TAG_KEY = "sampler.type";

    /**
     * Span tag key to describe the parameter of the sampler used on the root span.
     */
    public static final String SAMPLER_PARAM_TAG_KEY = "sampler.param";

    /**
     * The name of HTTP header or a TextMap carrier key which, if found
     * in the carrier, forces the trace to be sampled as "debug" trace.
     * The value of the header is recorded as the tag on the root span,
     * so that the trace can be found in the UI using this value as a
     * correlation ID.
     */
    public static final String DEBUG_ID_HEADER_KEY = "jaeger-debug-id";
}