Sample applications and use of the Java topology API for IBM Streams.

See: Description

Packages 
Package Description
bluemix  
games  
kafka
A sample demonstrating integration with the Apache Kafka messaging system http://kafka.apache.org.
mqtt
A sample demonstrating integration with the MQTT messaging system http://mqtt.org.
parallel
Samples using parallel streams.
rest
Samples using Java REST api wrappers
simple
Basic, simple samples of Java streaming applications.
state
Sample use of functional logic with state that persists across invocations.
topic
Topic based Publish-Subscribe sample Java applications.
twitter
Sample how how to process tweets using Java.
vwap
SPL sample Vwap application reimplemented using Java.
Sample applications and use of the Java topology API for IBM Streams.

Sample Streaming Applications

SampleDescriptionFocus
HelloWorldPrints Hello World! to standard output. Basic mechanics of declaring a topology and executing it.
EchoEchos command line arguments to standard out. Passing in runtime values to a topology.
FilterEchoEchos a subset of command line arguments to standard out Use of Java functional programming style for filtering.
GrepContinually watches a directory, reads new files in the directory and prints lines from the files containing a search term to standard out Use of utility methods provided by the Java topology API.
TwitterTrendingReads tweets from a specified directory and calculates the trending hashtags in parallel. A real-world usage for windowing.
RegexGrepContinually watches a directory, reads new files in the directory and prints lines from the files that match a regular expression to standard out Java functional programming using an anonymous class with initialization.
VwapSPL Vwap sample reimplemented in Java. Java objects as tuples, integration with SPL operators and tuples.
PublishBeacon,SubscribeBeacon Publish-subscribe model for streams across applications Publish-subscribe in distributed.
KafkaSamplePublishes messages to a Kafka topic. Subscribes to a Kafka topic and prints results. Integrating with Apache Kafka.
MqttSamplePublishes messages to a MQTT topic. Subscribes to a MQTT topic and prints results. Integrating with MQTT.
streamsx.topology @ IBMStreams GitHub