diff options
Diffstat (limited to 'kamon-core/src/main/scala/kamon/Environment.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/Environment.scala | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/kamon-core/src/main/scala/kamon/Environment.scala b/kamon-core/src/main/scala/kamon/Environment.scala new file mode 100644 index 00000000..80833352 --- /dev/null +++ b/kamon-core/src/main/scala/kamon/Environment.scala @@ -0,0 +1,51 @@ +/* ========================================================================================= + * 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 + +import java.net.InetAddress +import java.util.concurrent.ThreadLocalRandom + +import com.typesafe.config.Config +import kamon.util.HexCodec + +case class Environment(host: String, service: String, instance: String, incarnation: String) + +object Environment { + private val incarnation = HexCodec.toLowerHex(ThreadLocalRandom.current().nextLong()) + + def fromConfig(config: Config): Environment = { + val environmentConfig = config.getConfig("kamon.environment") + + val service = environmentConfig.getString("service") + + val host = readValueOrGenerate( + environmentConfig.getString("host"), + InetAddress.getLocalHost.getHostName + ) + + val instance = readValueOrGenerate( + environmentConfig.getString("instance"), + s"$service@$host" + ) + + Environment(host, service, instance, incarnation) + } + + private def readValueOrGenerate(configuredValue: String, generator: => String): String = + if(configuredValue == "auto") generator else configuredValue + + +} |