/*
* $Header: /home/cvspublic/jakarta-tomcat-4.0/catalina/src/share/org/apache/catalina/core/StandardWrapperValve.java,v 1.30 2001/09/14 20:30:01 craigmcc Exp $
* $Revision: 1.30 $
* $Date: 2001/09/14 20:30:01 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.catalina.core;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.FilterConfig;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.UnavailableException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
import org.apache.catalina.HttpRequest;
import org.apache.catalina.HttpResponse;
import org.apache.catalina.Logger;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import org.apache.catalina.ValveContext;
import org.apache.catalina.Wrapper;
import org.apache.catalina.deploy.ErrorPage;
import org.apache.catalina.deploy.FilterDef;
import org.apache.catalina.deploy.FilterMap;
import org.apache.catalina.util.InstanceSupport;
import org.apache.catalina.util.RequestUtil;
import org.apache.catalina.util.StringManager;
import org.apache.catalina.valves.ValveBase;
/**
* Valve that implements the default basic behavior for the
* <code>StandardWrapper</code> container implementation.
*
* @author Craig R. McClanahan
* @version $Revision: 1.30 $ $Date: 2001/09/14 20:30:01 $
*/
final class StandardWrapperValve
extends ValveBase {
// ----------------------------------------------------- Instance Variables
/**
* The debugging detail level for this component.
*/
private int debug = 0;
/**
* The filter definition for our container-provided filter.
*/
private FilterDef filterDef = null;
/**
* The descriptive information related to this implementation.
*/
private static final String info =
"org.apache.catalina.core.StandardWrapperValve/1.0";
/**
* The string manager for this package.
*/
private static final StringManager sm =
StringManager.getManager(Constants.Package);
// ------------------------------------------------------------- Properties
/**
* Return descriptive information about this Valve implementation.
*/
public String getInfo() {
return (info);
}
// --------------------------------------------------------- Public Methods
/**
* Invoke the servlet we are managing, respecting the rules regarding
* servlet lifecycle and SingleThreadModel support.
*
* @param request Request to be processed
* @param response Response to be produced
* @param valveContext Valve context used to forward to the next Valve
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
public void invoke(Request request, Response response,
ValveContext valveContext)
throws IOException, ServletException {
// Initialize local variables we may need
boolean unavailable = false;
Throwable throwable = null;
StandardWrapper wrapper = (StandardWrapper) getContainer();
ServletRequest sreq = request.getRequest();
ServletResponse sres = response.getResponse();
Servlet servlet = null;
HttpServletRequest hreq = null;
if (sreq instanceof HttpServletRequest)
hreq = (HttpServletRequest) sreq;
HttpServletResponse hres = null;
if (sres instanceof HttpServletResponse)
hres = (HttpServletResponse) sres;
// Check for the application being marked unavailable
if (!((Context) wrapper.getParent()).getAvailable()) {
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,
sm.getString("standardContext.isUnavailable"));
unavailable = true;
}
// Check for the servlet being marked unavailable
if (!unavailable && wrapper.isUnavailable()) {
log(sm.getString("standardWrapper.isUnavailable",
wrapper.getName()));
if (hres == null) {
; // NOTE - Not much we can do generically
} else {
long available = wrapper.getAvailable();
if ((available > 0L) && (available < Long.MAX_VALUE))
hres.setDateHeader("Retry-After", available);
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,
sm.getString("standardWrapper.isUnavailable",
wrapper.getName()));
}
unavailable = true;
}
// Allocate a servlet instance to process this request
try {
if (!unavailable) {
servlet = wrapper.allocate();
}
} catch (ServletException e) {
log(sm.getString("standardWrapper.allocateException",
wrapper.getName()), e);
throwable = e;
exception(request, response, e);
servlet = null;
} catch (Throwable e) {
log(sm.getString("standardWrapper.allocateException",
wrapper.getName()), e);
throwable = e;
exception(request, response, e);
servlet = null;
}
// Create the filter chain for this request
ApplicationFilterChain filterChain =
createFilterChain(request, servlet);
// Call the filter chain for this request
// NOTE: This also calls the servlet's service() method
try {
String jspFile = wrapper.getJspFile();
if (jspFile != null)
sreq.setAttribute(Globals.JSP_FILE_ATTR, jspFile);
else
sreq.removeAttribute(Globals.JSP_FILE_ATTR);
if ((servlet != null) && (filterChain != null)) {
filterChain.doFilter(sreq, sres);
}
sreq.removeAttribute(Globals.JSP_FILE_ATTR);
} catch (IOException e) {
sreq.removeAttribute(Globals.JSP_FILE_ATTR);
log(sm.getString("standardWrapper.serviceException",
wrapper.getName()), e);
; // No reporting to the response
; // No change in availability status
} catch (UnavailableException e) {
sreq.removeAttribute(Globals.JSP_FILE_ATTR);
log(sm.getString("standardWrapper.serviceException",
wrapper.getName()), e);
// throwable = e;
// exception(request, response, e);
wrapper.unavailable(e);
long available = wrapper.getAvailable();
if ((available > 0L) && (available < Long.MAX_VALUE))
hres.setDateHeader("Retry-After", available);
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,
sm.getString("standardWrapper.isUnavailable",
wrapper.getName()));
// Do not save exception in 'throwable', because we
// do not want to do exception(request, response, e) processing
} catch (ServletException e) {
sreq.removeAttribute(Globals.JSP_FILE_ATTR);
log(sm.getString("standardWrapper.serviceException",
wrapper.getName()), e);
throwable = e;
exception(request, response, e);
} catch (Throwable e) {
sreq.removeAttribute(Globals.JSP_FILE_ATTR);
log(sm.getString("standardWrapper.serviceException",
wrapper.getName()), e);
throwable = e;
exception(request, response, e);
}
// Release the filter chain (if any) for this request
try {
if (filterChain != null)
filterChain.release();
} catch (Throwable e) {
log(sm.getString("standardWrapper.releaseFilters",
wrapper.getName()), e);
if (throwable == null) {
throwable = e;
exception(request, response, e);
}
}
// Deallocate the allocated servlet instance
try {
if (servlet != null) {
wrapper.deallocate(servlet);
}
} catch (Throwable e) {
log(sm.getString("standardWrapper.deallocateException",
wrapper.getName()), e);
if (throwable == null) {
throwable = e;
exception(request, response, e);
}
}
// If this servlet has been marked permanently unavailable,
// unload it and release this instance
try {
if ((servlet != null) &&
(wrapper.getAvailable() == Long.MAX_VALUE)) {
wrapper.unload();
}
} catch (Throwable e) {
log(sm.getString("standardWrapper.unloadException",
wrapper.getName()), e);
if (throwable == null) {
throwable = e;
exception(request, response, e);
}
}
// Generate a response for the generated HTTP status and message
if (throwable == null) {
status(request, response);
}
}
// -------------------------------------------------------- Private Methods
/**
* Construct and return a FilterChain implementation that will wrap the
* execution of the specified servlet instance. If we should not execute
* a filter chain at all, return <code>null</code>.
* <p>
* <strong>FIXME</strong> - Pool the chain instances!
*
* @param request The servlet request we are processing
* @param servlet The servlet instance to be wrapped
*/
private ApplicationFilterChain createFilterChain(Request request,
Servlet servlet) {
// If there is no servlet to execute, return null
if (servlet == null)
return (null);
// Create and initialize a filter chain object
ApplicationFilterChain filterChain =
new ApplicationFilterChain();
filterChain.setServlet(servlet);
StandardWrapper wrapper = (StandardWrapper) getContainer();
filterChain.setSupport(wrapper.getInstanceSupport());
// Acquire the filter mappings for this Context
StandardContext context = (StandardContext) wrapper.getParent();
FilterMap filterMaps[] = context.findFilterMaps();
// If there are no filter mappings, we are done
if ((filterMaps == null) || (filterMaps.length == 0))
return (filterChain);
// if (debug >= 1)
// log("createFilterChain: Processing " + filterMaps.length +
// " filter map entries");
// Acquire the information we will need to match filter mappings
String requestPath = null;
if (request instanceof HttpRequest) {
HttpServletRequest hreq =
(HttpServletRequest) request.getRequest();
String contextPath = hreq.getContextPath();
if (contextPath == null)
contextPath = "";
String requestURI = hreq.getRequestURI();
if (requestURI.length() >= contextPath.length())
requestPath = requestURI.substring(contextPath.length());
}
String servletName = wrapper.getName();
// if (debug >= 1) {
// log(" requestPath=" + requestPath);
// log(" servletName=" + servletName);
// }
int n = 0;
// Add the relevant path-mapped filters to this filter chain
for (int i = 0; i < filterMaps.length; i++) {
// if (debug >= 2)
// log(" Checking path-mapped filter '" +
// filterMaps[i] + "'");
if (!matchFiltersURL(filterMaps[i], requestPath))
continue;
ApplicationFilterConfig filterConfig = (ApplicationFilterConfig)
context.findFilterConfig(filterMaps[i].getFilterName());
if (filterConfig == null) {
// if (debug >= 2)
// log(" Missing path-mapped filter '" +
// filterMaps[i] + "'");
; // FIXME - log configuration problem
continue;
}
// if (debug >= 2)
// log(" Adding path-mapped filter '" +
// filterConfig.getFilterName() + "'");
filterChain.addFilter(filterConfig);
n++;
}
// Add filters that match on servlet name second
for (int i = 0; i < filterMaps.length; i++) {
// if (debug >= 2)
// log(" Checking servlet-mapped filter '" +
// filterMaps[i] + "'");
if (!matchFiltersServlet(filterMaps[i], servletName))
continue;
ApplicationFilterConfig filterConfig = (ApplicationFilterConfig)
context.findFilterConfig(filterMaps[i].getFilterName());
if (filterConfig == null) {
// if (debug >= 2)
// log(" Missing servlet-mapped filter '" +
// filterMaps[i] + "'");
; // FIXME - log configuration problem
continue;
}
// if (debug >= 2)
// log(" Adding servlet-mapped filter '" +
// filterMaps[i] + "'");
filterChain.addFilter(filterConfig);
n++;
}
// Return the completed filter chain
// if (debug >= 2)
// log(" Returning chain with " + n + " filters");
return (filterChain);
}
/**
* Handle an HTTP status code or Java exception by forwarding control
* to the location included in the specified errorPage object. It is
* assumed that the caller has already recorded any request attributes
* that are to be forwarded to this page. Return <code>true</code> if
* we successfully utilized the specified error page location, or
* <code>false</code> if the default error report should be rendered.
*
* @param request The request being processed
* @param response The response being generated
* @param errorPage The errorPage directive we are obeying
*/
private boolean custom(Request request, Response response,
ErrorPage errorPage) {
if (debug >= 1)
log("Processing " + errorPage);
// Validate our current environment
if (!(request instanceof HttpRequest)) {
if (debug >= 1)
log(" Not processing an HTTP request --> default handling");
return (false); // NOTE - Nothing we can do generically
}
HttpServletRequest hreq =
(HttpServletRequest) request.getRequest();
if (!(response instanceof HttpResponse)) {
if (debug >= 1)
log("Not processing an HTTP response --> default handling");
return (false); // NOTE - Nothing we can do generically
}
HttpServletResponse hres =
(HttpServletResponse) response.getResponse();
try {
// Reset the response if possible (else IllegalStateException)
hres.reset();
// Forward control to the specified location
ServletContext servletContext =
((Context) container.getParent()).getServletContext();
RequestDispatcher rd =
servletContext.getRequestDispatcher(errorPage.getLocation());
rd.forward(hreq, hres);
// Indicate that we have successfully processed this custom page
return (true);
} catch (Throwable t) {
// Report our failure to process this custom page
log("Exception Processing " + errorPage, t);
return (false);
}
}
/**
* Handle the specified ServletException encountered while processing
* the specified Request to produce the specified Response. Any
* exceptions that occur during generation of the exception report are
* logged and swallowed.
*
* @param request The request being processed
* @param response The response being generated
* @param exception The exception that occurred (which possibly wraps
* a root cause exception
*/
private void exception(Request request, Response response,
Throwable exception) {
// Handle a custom error page for this status code
if (debug >= 1)
log("Handling exception: " + exception);
Context context = (Context) container.getParent();
Throwable realError = exception;
ErrorPage errorPage = findErrorPage(context, realError);
if ((errorPage == null) && (realError instanceof ServletException)) {
realError = ((ServletException) exception).getRootCause();
if (realError != null)
errorPage = findErrorPage(context, realError);
else
realError = exception;
}
if (errorPage != null) {
// if (debug >= 1)
// log(" Sending to custom error page " + errorPage);
ServletRequest sreq = request.getRequest();
sreq.setAttribute(Globals.ERROR_MESSAGE_ATTR,
exception.getMessage());
sreq.setAttribute(Globals.EXCEPTION_ATTR,
exception);
Wrapper wrapper = (Wrapper) getContainer();
sreq.setAttribute(Globals.SERVLET_NAME_ATTR,
wrapper.getName());
if (sreq instanceof HttpServletRequest)
sreq.setAttribute(Globals.EXCEPTION_PAGE_ATTR,
((HttpServletRequest) sreq).getRequestURI());
sreq.setAttribute(Globals.EXCEPTION_TYPE_ATTR,
exception.getClass());
if (custom(request, response, errorPage))
return;
}
// The response is an error
response.setError();
// Reset the response (if possible)
// if (debug >= 1)
// log(" Resetting response");
try {
response.getResponse().reset();
} catch (IllegalStateException e) {
// if (debug >= 1)
// log(" IllegalStateException: " + e.toString());
;
}
// Indicate an INTERNAL SERVER ERROR status (if possible)
try {
// if (debug >= 1)
// log(" Sending INTERNAL_SERVER_ERROR");
ServletResponse sresponse = response.getResponse();
if (sresponse instanceof HttpServletResponse)
((HttpServletResponse) sresponse).sendError
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (IllegalStateException e) {
// if (debug >= 1)
// log(" IllegalStateException: " + e.toString());
;
} catch (IOException e) {
// if (debug >= 1)
// log(" IOException: " + e.toString());
;
}
// Render a default HTML exception report page
Throwable rootCause = null;
if (exception instanceof ServletException)
rootCause = ((ServletException) exception).getRootCause();
try {
// if (debug >= 1)
// log(" Setting content type to text/html");
try {
response.getResponse().setContentType("text/html");
} catch (Throwable t) {
// if (debug >= 1)
// log(" Throwable: " + t.toString());
;
}
// if (debug >= 1)
// log(" Getting reporter writer");
PrintWriter writer = response.getReporter();
// if (debug >= 1)
// log(" Writing standard error report page");
writer.println("<html>");
writer.println("<head>");
writer.println("<title>" +
sm.getString("standardWrapper.exception0") +
"</title>");
writer.println("</head>");
writer.println("<body bgcolor=\"white\">");
writer.println("<br><br>");
writer.println("<h1>" +
sm.getString("standardWrapper.exception1") +
"</h1>");
if (rootCause != null)
writer.println("<h3>" +
sm.getString("standardWrapper.exception2") +
"</h3>");
writer.println("<pre>");
exception.printStackTrace(writer);
writer.println("</pre>");
if (rootCause != null) {
writer.println("<h3>" +
sm.getString("standardWrapper.exception3") +
"</h3>");
writer.println("<pre>");
rootCause.printStackTrace(writer);
writer.println("</pre>");
}
writer.println("</body>");
writer.println("</html>");
writer.flush();
} catch (IllegalStateException e) {
// if (debug >= 1)
// log(" IllegalStateException:", e);
;
}
// if (debug >= 1)
// log(" Finished with exception() report");
}
/**
* Find and return the ErrorPage instance for the specified exception's
* class, or an ErrorPage instance for the closest superclass for which
* there is such a definition. If no associated ErrorPage instance is
* found, return <code>null</code>.
*
* @param context The Context in which to search
* @param exception The exception for which to find an ErrorPage
*/
private ErrorPage findErrorPage(Context context, Throwable exception) {
if (exception == null)
return (null);
Class clazz = exception.getClass();
String name = clazz.getName();
while (!"java.lang.Object".equals(clazz)) {
ErrorPage errorPage = context.findErrorPage(name);
if (errorPage != null)
return (errorPage);
clazz = clazz.getSuperclass();
if (clazz == null)
break;
name = clazz.getName();
}
return (null);
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
*/
private void log(String message) {
Logger logger = null;
if (container != null)
logger = container.getLogger();
if (logger != null)
logger.log("StandardWrapperValve[" + container.getName() + "]: "
+ message);
else {
String containerName = null;
if (container != null)
containerName = container.getName();
System.out.println("StandardWrapperValve[" + containerName
+ "]: " + message);
}
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
* @param throwable Associated exception
*/
private void log(String message, Throwable throwable) {
Logger logger = null;
if (container != null)
logger = container.getLogger();
if (logger != null)
logger.log("StandardWrapperValve[" + container.getName() + "]: "
+ message, throwable);
else {
String containerName = null;
if (container != null)
containerName = container.getName();
System.out.println("StandardWrapperValve[" + containerName
+ "]: " + message);
System.out.println("" + throwable);
throwable.printStackTrace(System.out);
}
}
/**
* Return <code>true</code> if the specified servlet name matches
* the requirements of the specified filter mapping; otherwise
* return <code>false</code>.
*
* @param filterMap Filter mapping being checked
* @param servletName Servlet name being checked
*/
private boolean matchFiltersServlet(FilterMap filterMap,
String servletName) {
// if (debug >= 3)
// log(" Matching servlet name '" + servletName +
// "' against mapping " + filterMap);
if (servletName == null)
return (false);
else
return (servletName.equals(filterMap.getServletName()));
}
/**
* Return <code>true</code> if the context-relative request path
* matches the requirements of the specified filter mapping;
* otherwise, return <code>null</code>.
*
* @param filterMap Filter mapping being checked
* @param requestPath Context-relative request path of this request
*/
private boolean matchFiltersURL(FilterMap filterMap,
String requestPath) {
// if (debug >= 3)
// log(" Matching request path '" + requestPath +
// "' against mapping " + filterMap);
if (requestPath == null)
return (false);
// Match on context relative request path
String testPath = filterMap.getURLPattern();
if (testPath == null)
return (false);
// Case 1 - Exact Match
if (testPath.equals(requestPath))
return (true);
// Case 2 - Path Match ("/.../*")
if (testPath.equals("/*"))
return (true); // Optimize a common case
if (testPath.endsWith("/*")) {
String comparePath = requestPath;
while (true) {
if (testPath.equals(comparePath + "/*"))
return (true);
int slash = comparePath.lastIndexOf('/');
if (slash < 0)
break;
comparePath = comparePath.substring(0, slash);
}
return (false);
}
// Case 3 - Extension Match
if (testPath.startsWith("*.")) {
int slash = requestPath.lastIndexOf('/');
int period = requestPath.lastIndexOf('.');
if ((slash >= 0) && (period > slash))
return (testPath.equals("*." +
requestPath.substring(period + 1)));
}
// Case 4 - "Default" Match
return (false); // NOTE - Not relevant for selecting filters
}
/**
* Handle the HTTP status code (and corresponding message) generated
* while processing the specified Request to produce the specified
* Response. Any exceptions that occur during generation of the error
* report are logged and swallowed.
*
* @param request The request being processed
* @param response The response being generated
*/
private void status(Request request, Response response) {
// Do nothing on non-HTTP responses
if (!(response instanceof HttpResponse))
return;
HttpResponse hresponse = (HttpResponse) response;
if (!(response.getResponse() instanceof HttpServletResponse))
return;
HttpServletResponse hres =
(HttpServletResponse) response.getResponse();
int statusCode = hresponse.getStatus();
String message = RequestUtil.filter(hresponse.getMessage());
if (message == null)
message = "";
// Do nothing on a 1xx status
if (statusCode < 200)
return;
// Do nothing on an OK status
if (statusCode == HttpServletResponse.SC_OK)
return;
// Do nothing on a NO MODIFIED status
if (statusCode == HttpServletResponse.SC_NOT_MODIFIED)
return;
// Do nothing on a NO CONTENT status
if (statusCode == HttpServletResponse.SC_NO_CONTENT)
return;
// Handle a custom error page for this status code
Context context = (Context) container.getParent();
ErrorPage errorPage = context.findErrorPage(statusCode);
if (errorPage != null) {
ServletRequest sreq = request.getRequest();
sreq.setAttribute(Globals.STATUS_CODE_ATTR,
new Integer(statusCode));
sreq.setAttribute(Globals.ERROR_MESSAGE_ATTR,
message);
Wrapper wrapper = (Wrapper) getContainer();
sreq.setAttribute(Globals.SERVLET_NAME_ATTR,
wrapper.getName());
if (sreq instanceof HttpServletRequest)
sreq.setAttribute(Globals.EXCEPTION_PAGE_ATTR,
((HttpServletRequest) sreq).getRequestURI());
if (custom(request, response, errorPage))
return;
}
// Do nothing if there is no report for the specified status code
String report = null;
try {
report = sm.getString("http." + statusCode, message);
} catch (Throwable t) {
;
}
if (report == null)
return;
// Reset the response data buffer (if possible)
try {
if (hresponse.isError())
hresponse.reset(statusCode, message);
} catch (Throwable e) {
if (debug >= 1)
log("status.reset", e);
}
// Render a default HTML status report page
try {
try {
hres.setContentType("text/html");
} catch (Throwable t) {
if (debug >= 1)
log("status.setContentType", t);
}
PrintWriter writer = response.getReporter();
if (writer != null) {
writer.println("<html>");
writer.println("<head>");
writer.println("<title>" +
sm.getString("standardWrapper.statusTitle") +
"</title>");
writer.println("</head>");
writer.println("<body bgcolor=\"white\">");
writer.println("<br><br>");
writer.println("<h1>" +
sm.getString("standardWrapper.statusHeader",
"" + statusCode, message) +
"</h1>");
writer.println(report);
writer.println("</body>");
writer.println("</html>");
writer.flush();
}
} catch (IllegalStateException e) {
if (debug >= 1)
log("status.write", e);
}
}
}