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rapid-stock-market: Compatibility Mode example with HotRod and REST

Author: Martin Gencur Level: Intermediate Technologies: Infinispan, HotRod, REST Summary: Shows how to enable Infinispan compatibility mode so that data can be read/written over different protocols. Target Product: JDG Product Versions: EAP 6.x, JDG 6.x Source: https://github.com/infinispan/jdg-quickstart

This quickstart demonstrates the behaviour of a compatibility mode. Updates of shares are being stored in a cache via HotRod client and retrieved via HTTP client over REST.

The quickstart consists of two applications: a server-side application and client-side application.

Steps needed to build and run the applications:

  1. Build a server module for JBoss Data Grid Server. In this step, a class common to both clients and the server is packaged in a single jar file and placed in a directory structure similar to a server module.

    mvn clean package -Pprepare-server-module

  2. Install the server module into the server.

    • Copy the prepared module into the server:

      cp -r target/modules ${JDG_SERVER_HOME}/

    • Add the new module as a dependency of the org.infinispan.commons module. I.e. add <module name="org.infinispan.quickstart.compatibility.common"/> to module.xml in modules/system/layers/base/org/infinispan/commons/main

  3. Build the application.

    mvn clean package

  4. Configure JBoss Data Grid server to use a proper configuration file.

    • Copy an example configuration file for a compatibility mode to a correct location where JBoss Data Grid server can pick it up.

      cp ${JDG_SERVER_HOME}/docs/examples/configs/standalone-compatibility-mode.xml ${JDG_SERVER_HOME}/standalone/configuration

    • Disable REST security by removing security-domain and auth-method attribute definitions from <rest-connector> configuration element.

  5. Start JBoss Data Grid server

    ${JDG_SERVER_HOME}/bin/standalone.sh -c standalone-compatibility-mode.xml

  6. Open another terminal and start the server-side application - Market Updater

    mvn exec:java

  7. Open yet another terminal and start the client-side application

    mvn exec:java -Pclient

  8. Follow the help for the client application and try it out!