[OmniFaces utilities 2.0] Return the application scope attribute value associated with the given name

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[OmniFaces utilities] The getApplicationAttribute() method returns the application scope attribute value associated with the given name.

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Method:

Usage:

For example, get the name of the ServletContext attribute which stores the private temporary directory (of type java.io.File) provided by the servlet container for the ServletContext.

·         inside a servlet filter or even a plain vanilla servlet (basically, when FacesContext is not available):

import org.omnifaces.util.Servlets;

...

@WebServlet("/MyServlet")

public class MyServlet extends HttpServlet {

 protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {  

  // e.g. file path: D:\wildfly\standalone\tmp\MyApp.war

  File tempdir = Servlets.getApplicationAttribute(this.getServletContext(), "javax.servlet.context.tempdir");

 }

 ...

}

·         in JSF, when FacesContext is available use, Faces#getApplicationAttribute(), or more clumsy (not recommended):

import org.omnifaces.util.Servlets;

...
// or use, Faces#getServletContext()

ServletContext servletContext = (ServletContext) Faces.getExternalContext().getContext();

// e.g. file path: D:\wildfly\standalone\tmp\MyApp.war

File tempdir = Servlets.getApplicationAttribute(servletContext, "javax.servlet.context.tempdir");

API GH