public Location getLocation(Object obj) {
Location loc = LocationUtils.getLocation(obj);
if (loc == null) {
return Location.UNKNOWN;
}
return loc;
}
/**
* Send an HTTP error response code.
*
* @param request the HttpServletRequest object.
* @param response the HttpServletResponse object.
* @param code the HttpServletResponse error code (see {@link
* javax.servlet.http.HttpServletResponse} for possible error codes).
* @param e the Exception that is reported.
* @param ctx the ServletContext object.
*/
public void sendError(
HttpServletRequest request,
HttpServletResponse response,
ServletContext ctx,
int code,
Exception e) {
Boolean devModeOverride = FilterDispatcher.getDevModeOverride();
if (devModeOverride != null ? devModeOverride : devMode) {
if (LOG.isDebugEnabled()) {
LOG.debug("Exception occurred during processing request: #0", e, e.getMessage());
}
try {
FreemarkerManager mgr = getContainer().getInstance(FreemarkerManager.class);
freemarker.template.Configuration config = mgr.getConfiguration(ctx);
Template template = config.getTemplate("/org/apache/struts2/dispatcher/error.ftl");
List<Throwable> chain = new ArrayList<Throwable>();
Throwable cur = e;
chain.add(cur);
while ((cur = cur.getCause()) != null) {
chain.add(cur);
}
HashMap<String, Object> data = new HashMap<String, Object>();
data.put("exception", e);
data.put("unknown", Location.UNKNOWN);
data.put("chain", chain);
data.put("locator", new Locator());
Writer writer = new StringWriter();
template.process(data, writer);
response.setContentType("text/html");
response.getWriter().write(writer.toString());
response.getWriter().close();
} catch (Exception exp) {
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Cannot show problem report!", exp);
}
response.sendError(
code,
"Unable to show problem report:\n" + exp + "\n\n" + LocationUtils.getLocation(exp));
} catch (IOException ex) {
// we're already sending an error, not much else we can do if more stuff breaks
}
}
} else {
try {
if (LOG.isErrorEnabled()) {
LOG.error("Exception occurred during processing request: #0", e, e.getMessage());
}
// WW-1977: Only put errors in the request when code is a 500 error
if (code == HttpServletResponse.SC_INTERNAL_SERVER_ERROR) {
// send a http error response to use the servlet defined error handler
// make the exception availible to the web.xml defined error page
request.setAttribute("javax.servlet.error.exception", e);
// for compatibility
request.setAttribute("javax.servlet.jsp.jspException", e);
}
// send the error response
response.sendError(code, e.getMessage());
} catch (IOException e1) {
// we're already sending an error, not much else we can do if more stuff breaks
}
}
}