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 controlplane

  Generic meta data event declarations so that observations, and other things, can be made known to the system as a whole.

  Generic meta data event declarations so that observations, and other things, can be made known to the system as a whole.

  Definition Classes

  streambed

•  object ObservationTypeEvents

  Declares public types for the types of observation handled by the system, regardless of how the observation has been sourced.

  Declares public types for the types of observation handled by the system, regardless of how the observation has been sourced. Each class or type of observation has its own name and relevant topic, i.e. water sensors are distinct from soil sensors and thus have distinct types.

  Definition Classes

  controlplane

• Event
• EventJsonProtocol
• ObservationTypeRemoved
• ObservationTypeUpdated

com.cisco.streambed.controlplane.ObservationTypeEvents

ObservationTypeUpdated