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/* =========================================================================================
* Copyright © 2013-2017 the kamon project <http://kamon.io/>
*
* Licensed 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 kamon
package util
import kamon.trace.Span
/**
* Utility trait that marks objects carrying a reference to a Span.
*
*/
trait HasSpan {
def span: Span
}
object HasSpan {
private case class Default(span: Span) extends HasSpan
/**
* Construct a HasSpan instance that references the provided Span.
*
*/
def from(span: Span): HasSpan =
Default(span)
/**
* Construct a HasSpan instance that references the currently ActiveSpan in Kamon's tracer.
*
*/
def fromActiveSpan(): HasSpan =
Default(Kamon.activeSpan())
}
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