Packages

  • package root
    Definition Classes
    root
  • package com
    Definition Classes
    root
  • package cisco
    Definition Classes
    com
  • package streambed

    The base package of the Streambed library.

    The base package of the Streambed library. Of note is the com.cisco.streambed.Application suite of types. These types conveniently establish a streambed environment for an application.

    Sample usage from Java:

    /**
 * Bootstraps our application and handles signals
 */
public class MyServerEntryPoints {
    private static ApplicationProcess applicationProcess = null;

    public static void main(String[] args) {
        applicationProcess = new ApplicationProcess(new MyServer());
        applicationProcess.main(args);
    }

    public static void trap(int signal) {
      if (applicationProcess != null) {
            applicationProcess.trap(signal);
        }
    }
}

    ...with MyServer being declared as:

    public class MyServer extends Application {
    @Override
    public void main(String[] args, ApplicationContext context) {
      ..
    }
}

    The equivalent in Scala:

    object MyServerEntryPoints {
  private lazy val applicationProcess = ApplicationProcess(MyServer)

  def main(args: Array[String]): Unit =
    applicationProcess.main(args)

  def trap(signal: Int): Unit =
    applicationProcess.trap(signal)
}

    ...with MyServer being declared as:

    object MyServer extends Application {
  override def main(args: Array[String], applicationContext: ApplicationContext): Unit = {
    ..
  }
}

    The essential idea is that a regular JVM entry point (MyServerEntryPoints), establishes a com.cisco.streambed.ApplicationProcess of a class named MyServer. The trap method is used by Landlord for whenever an operating systemm signal is sent to the process. My extending com.cisco.streambed.Application, a com.cisco.streambed.ApplicationContext is provided by Streambed, containing almost all of what an application will require in order to startup (an actor system, metrics, logging...). The resources provided within the context are also automatically released on exit.

    Definition Classes
    cisco
  • package telemetry

    Metrics and tracing functionality.

    Metrics and tracing functionality. Leverages the reactive-streams-telemetry project.

    Definition Classes
    streambed
  • TelemetryConfig
  • TelemetryReporter

object TelemetryConfig

Provides conveniences for configuring Open Telemetry

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  4. def apply()(implicit system: ActorSystem): (StreamMetricExporter, StreamSpanExporter)

    Establish telemetry from an application's configuration that will automatically shutdown with our actor system.

    Establish telemetry from an application's configuration that will automatically shutdown with our actor system. Sets up a production of metrics at a configurable interval and associates exporters. Returns stream-based metric and span exporters.

    This function can be used for inspiration should Open Telemetry require alternate configuration.

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  7. def create(implicit system: ActorSystem): Pair[StreamMetricExporter, StreamSpanExporter]

    Java API

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    Establish telemetry from an application's configuration that will automatically shutdown with our actor system. Sets up a production of metrics at a configurable interval and associates exporters. Returns stream-based metric and span exporters.

    This function can be used for inspiration should Open Telemetry require alternate configuration.

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