Apache CXF is an open source services framework. CXF helps you build and develop services using frontend programming APIs, like JAX-WS and JAX-RS. These services can speak a variety of protocols such as SOAP, XML/HTTP, RESTful HTTP, or CORBA and work over a variety of transports such as HTTP, JMS or JBI.
Apache Camel 是一个非常强大的基于规则的路由以及媒介引擎，该引擎提供了一个基于POJO的 企业应用模式(Enterprise Integration Patterns)的实现，你可以采用其异常强大且十分易用的API (可以说是一种Java的领域定义语言 Domain Specific Language)来配置其路由或者中介的规则
Apache Beam is a unified model for defining both batch and streaming data-parallel processing pipelines, as well as a set of language-specific SDKs for constructing pipelines and Runners for executing them on distributed processing backends, including Apache Flink, Apache Spark, Google Cloud Dataflow and Hazelcast Jet.
Apache NiFi is an easy to use, powerful, and reliable system to process and distribute data.
Apache ActiveMQ is a high performance Apache 2.0 licensed Message Broker and JMS 1.1 implementation.
