Packages

Definition Classes: root

Definition Classes: root

Definition Classes: com

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.

Definition Classes: streambed

package crypto

Utilities that abstract crypto functions, such as encoding/decoding given a salt.

Definition Classes: streambed

package durablequeue

The com.cisco.streambed.durablequeue.DurableQueue is at the heart of streambed.

The com.cisco.streambed.durablequeue.DurableQueue is at the heart of streambed. Streambed programs are essentially formed around the durable queue. Use a com.cisco.streambed.durablequeue.DurableQueue.Provider to declare the type of queue you require. See the package doc for Streambed's ChronicleQueue for an example.

Definition Classes: streambed

package http

High level Akka http utilities e.g.

High level Akka http utilities e.g. making it easier to bind and handle an HTTP port with a TLS certificate as per com.cisco.streambed.http.HttpServerConfig.

Definition Classes: streambed

package identity

Identity management inspired by Hashicorp Vault's secret storage model.

Identity management inspired by Hashicorp Vault's secret storage model. com.cisco.streambed.identity.Principal objects represent a entity that has attempted to authenticate. An authenticated entity yields a com.cisco.streambed.identity.Principal.AuthenticationToken by which secrets can then be requested against a com.cisco.streambed.identity.SecretStore. Secret stores can come in many forms and are selected by using a com.cisco.streambed.identity.SecretStore.Provider. See the streambed.identity.iox package for one such implementation.

Definition Classes: streambed

package lora

Definition Classes: streambed

package mqttgateway

A streambed service that can be dynamically configured to publish and subscribe to sensor events and their meta data.

A streambed service that can be dynamically configured to publish and subscribe to sensor events and their meta data. An HTTP API is provided as a control plane.

Definition Classes: streambed

package storage

Storage provides mechanisms to persist and retrieve arbitrary data.

Storage provides mechanisms to persist and retrieve arbitrary data. This complements com.cisco.streambed.durablequeue.DurableQueue and can be used a snapshotting mechanism, a common pattern in event sourcing and CQRS systems.

By default, an implementation using the local filesystem is provided. E.g. see "com.cisco.streambed.storage.fs.FileSystemRawStorage" elsewhere.

Definition Classes: streambed

package telemetry

Metrics and tracing functionality.

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

Definition Classes: streambed

package testkit

Various utilities to support streambed based tests

Definition Classes: streambed

UuidOps

object UuidOps

Complements the JDK java.util.UUID class, providing additional methods to generate V5 IDs.

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def v4(): UUID
Generates a V4 UUID, i.e.
Generates a V4 UUID, i.e. random
def v5(namespace: UUID, name: Array[Byte]): UUID
Generates a V5 UUID given a namespace and raw name.
def v5(namespace: UUID, name: String): UUID
Generates a V5 UUID given a namespace and string name.
Generates a V5 UUID given a namespace and string name. The name is encoded as UTF8.
def v5[A](clazz: Class[A], suffix: String): UUID
Generates a V5 UUID given a class.
Generates a V5 UUID given a class. To do this, the OID namespace is used along with the FQCN of the provided class.
A suffix can be provided if a class needs to track different offsets.
def v5[A](clazz: Class[A]): UUID
Generates a V5 UUID given a class.
Generates a V5 UUID given a class. To do this, the OID namespace is used along with the FQCN of the provided class.
An optional suffix can be provided if a class needs to track different offsets.
final def wait(): Unit
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