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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.context
import kamon.Kamon
/**
* Utility trait that marks objects carrying a reference to a Span.
*
*/
trait HasContext {
def context: Context
}
object HasContext {
private case class Default(context: Context) extends HasContext
/**
* Construct a HasSpan instance that references the provided Span.
*
*/
def from(context: Context): HasContext =
Default(context)
/**
* Construct a HasSpan instance that references the currently ActiveSpan in Kamon's tracer.
*
*/
def fromCurrentContext(): HasContext =
Default(Kamon.currentContext())
}
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