/** Initializes the servlet. */
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
// It seems that if the servlet fails to initialize the first time,
// init can be called again (it has been observed in Tomcat log files
// but not explained).
if (initAttempted) {
// This happens - the query and update servlets share this class
// log.info("Re-initialization of servlet attempted") ;
return;
}
initAttempted = true;
servletConfig = config;
// Modify the (Jena) global filemanager to include loading by servlet context
FileManager fileManager = FileManager.get();
if (config != null) {
servletContext = config.getServletContext();
fileManager.addLocator(new LocatorServletContext(servletContext));
}
printName = config.getServletName();
String configURI = config.getInitParameter(Joseki.configurationFileProperty);
servletEnv();
try {
Dispatcher.initServiceRegistry(fileManager, configURI);
} catch (ConfigurationErrorException confEx) {
throw new ServletException("Joseki configuration error", confEx);
}
}
private void servletEnv() {
if (!log.isDebugEnabled()) return;
try {
java.net.URL url = servletContext.getResource("/");
log.trace("Joseki base directory: " + url);
} catch (Exception ex) {
}
if (servletConfig != null) {
String tmp = servletConfig.getServletName();
log.trace("Servlet = " + (tmp != null ? tmp : "<null>"));
@SuppressWarnings("unchecked")
Enumeration<String> en = servletConfig.getInitParameterNames();
for (; en.hasMoreElements(); ) {
String s = en.nextElement();
log.trace("Servlet parameter: " + s + " = " + servletConfig.getInitParameter(s));
}
}
if (servletContext != null) {
// Name of webapp
String tmp = servletContext.getServletContextName();
// msg(Level.FINE, "Webapp = " + (tmp != null ? tmp : "<null>"));
log.debug("Webapp = " + (tmp != null ? tmp : "<null>"));
// NB This servlet may not have been loaded as part of a web app
@SuppressWarnings("unchecked")
Enumeration<String> en = servletContext.getInitParameterNames();
for (; en.hasMoreElements(); ) {
String s = en.nextElement();
log.debug("Webapp parameter: " + s + " = " + servletContext.getInitParameter(s));
}
}
/*
for ( Enumeration enum = servletContext.getAttributeNames() ; enum.hasMoreElements() ; )
{
String s = (String)enum.nextElement() ;
logger.log(LEVEL, "Webapp attribute: "+s+" = "+context.getAttribute(s)) ;
}
*/
}