Examples with OsgiHost org.apache.struts2.osgi.host.OsgiHost used on opensource projects

Example 1 with OsgiHost

use of org.apache.struts2.osgi.host.OsgiHost in project struts by apache.

the class StrutsOsgiListener method contextInitialized.

@Override
public void contextInitialized(ServletContextEvent sce) {
    LOG.trace("StrutsOsgiListener attempting to start. ContextInitialized called.  SCE: [{}]", sce);
    if (sce == null) {
        // Better than a NPE.
        throw new StrutsException("ServletContextEvent is null.  Cannot init OSGi platform!");
    }
    ServletContext servletContext = sce.getServletContext();
    LOG.trace("StrutsOsgiListener attempting to start. ServletContext: [{}]", servletContext);
    if (servletContext == null) {
        // Better than a NPE.
        throw new StrutsException("ServletContext is null within the ServletContextEvent.  Cannot init OSGi platform!");
    }
    String platform = servletContext.getInitParameter(PLATFORM_KEY);
    LOG.debug("Defined OSGi platform as [{}] via context-param [{}]", platform, PLATFORM_KEY);
    try {
        osgiHost = OsgiHostFactory.createOsgiHost(platform);
        LOG.trace("StrutsOsgiListener attempting to start. OSGi Host constructed: [{}]", osgiHost);
    } catch (Throwable t) {
        throw new StrutsException("StrutsOsgiListener failed to create an OSGi Host!", t);
    }
    servletContext.setAttribute(OSGI_HOST, osgiHost);
    try {
        osgiHost.init(servletContext);
    } catch (Exception e) {
        throw new StrutsException("StrutsOsgiListener failed to initialize the OSGi Host platform!", e);
    }
}