// 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.
// SAMPLED_MASK is the bit mask indicating that a span has been sampled.
export const SAMPLED_MASK = 0x1;
// DEBUG_MASK is the bit mask indicationg that a span has been marked for debug.
export const DEBUG_MASK = 0x2;
// JAEGER_CLIENT_VERSION_TAG_KEY is the name of the tag used to report client version.
export const JAEGER_CLIENT_VERSION_TAG_KEY = 'jaeger.version';
// TRACER_HOSTNAME_TAG_KEY used to report host name of the process.
export const TRACER_HOSTNAME_TAG_KEY = 'jaeger.hostname';
// PROCESS_IP used to report ip of the process.
export const PROCESS_IP = 'ip';
// SAMPLER_TYPE_TAG_KEY reports which sampler was used on the root span.
export const SAMPLER_TYPE_TAG_KEY = 'sampler.type';
// SAMPLER_PARAM_TAG_KEY reports which sampler was used on the root span.
export const SAMPLER_PARAM_TAG_KEY = 'sampler.param';
// SAMPLER_TYPE_CONST is the type of the sampler that always makes the same decision.
export const SAMPLER_TYPE_CONST = 'const';
// SAMPLER_TYPE_PROBABILISTIC is the type of sampler that samples traces
// with a certain fixed probability.
export const SAMPLER_TYPE_PROBABILISTIC = 'probabilistic';
// SAMPLER_TYPE_RATE_LIMITING is the type of sampler that samples
// only up to a fixed number of traces per second.
export const SAMPLER_TYPE_RATE_LIMITING = 'ratelimiting';
// SAMPLER_TYPE_LOWER_BOUND is the type of sampler that samples
// only up to a fixed number of traces per second.
export const SAMPLER_TYPE_LOWER_BOUND = "lowerbound";
// SAMPLER_TYPE_REMOTE is the type of sampler that polls Jaeger agent for sampling strategy.
export const SAMPLER_TYPE_REMOTE = 'remote';
// JAEGER_DEBUG_HEADER is the name of an 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.
export const JAEGER_DEBUG_HEADER = 'jaeger-debug-id';
// JaegerBaggageHeader is the name of the HTTP header that is used to submit baggage.
// It differs from TraceBaggageHeaderPrefix in that it can be used only in cases where
// a root span does not exist.
export const JAEGER_BAGGAGE_HEADER = "jaeger-baggage";
// TRACER_BAGGAGE_HEADER_PREFIX is the default prefix used for saving baggage to a carrier.
export const TRACER_BAGGAGE_HEADER_PREFIX = 'uberctx-';
// TRACER_STATE_HEADER_NAME is the header key used for a span's serialized context.
export const TRACER_STATE_HEADER_NAME = 'uber-trace-id';
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