Archive

Archive for May, 2015

Externalize JSF project stage

Java ServerFaces (JSF) has a configuration option that should be set to Development in development and Production in production:


<context-param>
  <param-name>javax.faces.PROJECT_STAGE</param-name>
  <param-value>Development</param-value>
</context-param>

Unfortunately it is defined in web.xml, so the binary file installed in development must differ from the binary file in production. Find and replace at build time works, but it is cumbersome and prone to errors.

The ideal solution would be to use system properties, but JSF does not support that. However, JSF can use JNDI lookups! Why they would support something as complex as JNDI in place of something as simple and straightforward as system properties beats me, but there you are.

To use a JNDI lookup, add the following to web.xml instead of the context parameter:


<resource-ref>
  <res-ref-name>jsf/ProjectStage</res-ref-name>
  <res-type>java.lang.String</res-type>
  <lookup-name>JsfProjectStage</lookup-name>
</resource-ref>

The lookup name can be defined in the application server. If it is missing JSF will warn, but defaults to production mode.

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Categories: Java

Chocolatey brings package management to Windows

Finally there is a package manager like apt-get or yum for Windows! Chocolatey can install and upgrade applications with simple commands, very similar to the Linux equivalents. For example, install the native Windows docker client with choco install docker and keep it up to date with choco upgrade docker. Highly recommended.

Categories: Windows