/
ManualSpanExample.scala
62 lines (51 loc) · 1.74 KB
/
ManualSpanExample.scala
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/*
* Copyright 2018-2019 The OpenTracing Authors
*
* 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 io.opentracing.contrib.concurrent.examples
import io.opentracing.contrib.concurrent.TracedExecutionContext
import io.opentracing.{Scope, Span, Tracer}
import scala.concurrent.{ExecutionContext, Future}
class ManualSpanExample extends App {
val tracer: Tracer = ??? // Set your tracer here.
val ec: ExecutionContext = new TracedExecutionContext(ExecutionContext.global, tracer)
val span: Span = ???
val scope: Scope = tracer.scopeManager().activate(span, false)
try {
val f1 = Future[Boolean] {
// 'parent' will automatically propagated and set active.
val childScope: Scope = tracer.buildSpan("child1").startActive(true)
try {
// ...
} finally {
childScope.close()
}
true
}(ec)
val f2 = Future[Boolean] {
// 'parent' will automatically propagated and set active.
val childScope = tracer.buildSpan("child2").startActive(true)
try {
// ...
} finally {
childScope.close()
}
true
}(ec)
Future.sequence(List(f1, f2))(implicitly, ec).onComplete { _ => {
scope.span().finish()
}
}(ec)
} finally {
scope.close()
}
}