/**
* Method used by background thread to check the JSP dependencies registered with this class for
* JSP's.
*/
public void checkCompile() {
if (lastCheck < 0) {
// Checking was disabled
return;
}
long now = System.currentTimeMillis();
if (now > (lastCheck + (options.getCheckInterval() * 1000L))) {
lastCheck = now;
} else {
return;
}
Object[] wrappers = jsps.values().toArray();
for (int i = 0; i < wrappers.length; i++) {
JspServletWrapper jsw = (JspServletWrapper) wrappers[i];
JspCompilationContext ctxt = jsw.getJspEngineContext();
// JspServletWrapper also synchronizes on this when
// it detects it has to do a reload
synchronized (jsw) {
try {
ctxt.compile();
} catch (FileNotFoundException ex) {
ctxt.incrementRemoved();
} catch (Throwable t) {
jsw.getServletContext().log("Background compile failed", t);
}
}
}
}
/**
* Create a JspRuntimeContext for a web application context.
*
* <p>Loads in any previously generated dependencies from file.
*
* @param context ServletContext for web application
*/
public JspRuntimeContext(ServletContext context, Options options) {
this.context = context;
this.options = options;
// Get the parent class loader
parentClassLoader = (URLClassLoader) Thread.currentThread().getContextClassLoader();
if (parentClassLoader == null) {
parentClassLoader = (URLClassLoader) this.getClass().getClassLoader();
}
if (log.isDebugEnabled()) {
if (parentClassLoader != null) {
log.debug(
Localizer.getMessage(
"jsp.message.parent_class_loader_is", parentClassLoader.toString()));
} else {
log.debug(Localizer.getMessage("jsp.message.parent_class_loader_is", "<none>"));
}
}
initClassPath();
if (context instanceof org.apache.jasper.servlet.JspCServletContext) {
return;
}
if (Constants.IS_SECURITY_ENABLED) {
initSecurity();
}
// If this web application context is running from a
// directory, start the background compilation thread
String appBase = context.getRealPath("/");
if (!options.getDevelopment() && appBase != null && options.getCheckInterval() > 0) {
lastCheck = System.currentTimeMillis();
}
}