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* Copyright 2004 The Apache Software Foundation
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* you may not use this file except in compliance with the License.
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package org.apache.catalina.core;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.UnavailableException;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
import org.apache.catalina.HttpRequest;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import org.apache.catalina.connector.ClientAbortException;
import org.apache.catalina.connector.RequestFacade;
import org.apache.catalina.valves.ValveBase;
import org.glassfish.grizzly.http.util.DataChunk;
import org.glassfish.logging.annotation.LogMessageInfo;
/**
* Valve that implements the default basic behavior for the
* <code>StandardWrapper</code> container implementation.
*
* @author Craig R. McClanahan
* @version $Revision: 1.10 $ $Date: 2007/05/05 05:31:54 $
*/
final class StandardWrapperValve extends ValveBase {
private static final Logger log = StandardServer.log;
private static final ResourceBundle rb = log.getResourceBundle();
@LogMessageInfo(
message = "This application is not currently available",
level = "WARNING"
)
public static final String APP_UNAVAILABLE = "AS-WEB-CORE-00274";
@LogMessageInfo(
message = "Servlet {0} is currently unavailable",
level = "WARNING"
)
public static final String SERVLET_UNAVAILABLE = "AS-WEB-CORE-00275";
@LogMessageInfo(
message = "Servlet {0} is not available",
level = "WARNING"
)
public static final String SERVLET_NOT_FOUND = "AS-WEB-CORE-00276";
@LogMessageInfo(
message = "Allocate exception for servlet {0}",
level = "WARNING"
)
public static final String SERVLET_ALLOCATE_EXCEPTION = "AS-WEB-CORE-00277";
@LogMessageInfo(
message = "Exception for sending acknowledgment of a request: {0}",
level = "WARNING"
)
public static final String SEND_ACKNOWLEDGEMENT_EXCEPTION = "AS-WEB-CORE-00278";
@LogMessageInfo(
message = "Servlet.service() for servlet {0} threw exception",
level = "WARNING"
)
public static final String SERVLET_SERVICE_EXCEPTION = "AS-WEB-CORE-00279";
@LogMessageInfo(
message = "Release filters exception for servlet {0}",
level = "WARNING"
)
public static final String RELEASE_FILTERS_EXCEPTION = "AS-WEB-CORE-00280";
@LogMessageInfo(
message = "Deallocate exception for servlet {0}",
level = "WARNING"
)
public static final String DEALLOCATE_EXCEPTION = "AS-WEB-CORE-00281";
@LogMessageInfo(
message = "Servlet {0} threw unload() exception",
level = "WARNING"
)
public static final String SERVLET_UNLOAD_EXCEPTION = "AS-WEB-CORE-00282";
@LogMessageInfo(
message = "StandardWrapperValve[{0}]: {1}",
level = "INFO"
)
public static final String STANDARD_WRAPPER_VALVE = "AS-WEB-CORE-00283";
// --------------------------------------------------------- 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
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public int invoke(Request request, Response response)
throws IOException, ServletException {
boolean unavailable = false;
Throwable throwable = null;
Servlet servlet = null;
StandardWrapper wrapper = (StandardWrapper) getContainer();
Context context = (Context) wrapper.getParent();
HttpRequest hrequest = (HttpRequest) request;
/*
* Create a request facade such that if the request was received
* at the root context, and the root context is mapped to a
* default-web-module, the default-web-module mapping is masked from
* the application code to which the request facade is being passed.
* For example, the request.facade's getContextPath() method will
* return "/", rather than the context root of the default-web-module,
* in this case.
*/
RequestFacade hreq = (RequestFacade) request.getRequest(true);
HttpServletResponse hres =
(HttpServletResponse) response.getResponse();
// Check for the application being marked unavailable
if (!context.getAvailable()) {
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
response.setDetailMessage(rb.getString(APP_UNAVAILABLE));
// END S1AS 4878272
unavailable = true;
}
// Check for the servlet being marked unavailable
if (!unavailable && wrapper.isUnavailable()) {
String msg = MessageFormat.format(rb.getString(SERVLET_UNAVAILABLE), wrapper.getName());
log(msg);
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);
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
response.setDetailMessage(msg);
// END S1AS 4878272
} else if (available == Long.MAX_VALUE) {
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_NOT_FOUND);
msg = MessageFormat.format(rb.getString(SERVLET_NOT_FOUND), wrapper.getName());
response.setDetailMessage(msg);
// END S1AS 4878272
}
}
unavailable = true;
}
// Allocate a servlet instance to process this request
try {
if (!unavailable) {
servlet = wrapper.allocate();
}
} catch (UnavailableException e) {
if (e.isPermanent()) {
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_NOT_FOUND);
String msg = MessageFormat.format(rb.getString(SERVLET_NOT_FOUND), wrapper.getName());
response.setDetailMessage(msg);
// END S1AS 4878272
} else {
hres.setDateHeader("Retry-After", e.getUnavailableSeconds());
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
String msg = MessageFormat.format(rb.getString(SERVLET_UNAVAILABLE), wrapper.getName());
response.setDetailMessage(msg);
// END S1AS 4878272
}
} catch (ServletException e) {
String msg = MessageFormat.format(rb.getString(SERVLET_ALLOCATE_EXCEPTION), wrapper.getName());
log(msg, StandardWrapper.getRootCause(e));
throwable = e;
exception(request, response, e);
servlet = null;
} catch (Throwable e) {
String msg = MessageFormat.format(rb.getString(SERVLET_ALLOCATE_EXCEPTION), wrapper.getName());
log(msg, e);
throwable = e;
exception(request, response, e);
servlet = null;
}
// Acknowlege the request
try {
response.sendAcknowledgement();
} catch (IOException e) {
String msg = MessageFormat.format(rb.getString(SEND_ACKNOWLEDGEMENT_EXCEPTION), wrapper.getName());
log(msg, e);
throwable = e;
exception(request, response, e);
} catch (Throwable e) {
String msg = MessageFormat.format(rb.getString(SEND_ACKNOWLEDGEMENT_EXCEPTION), wrapper.getName());
log(msg, e);
throwable = e;
exception(request, response, e);
servlet = null;
}
DataChunk requestPathMB = hrequest.getRequestPathMB();
hreq.setAttribute(Globals.DISPATCHER_REQUEST_PATH_ATTR,
requestPathMB);
// Create the filter chain for this request
ApplicationFilterFactory factory =
ApplicationFilterFactory.getInstance();
ApplicationFilterChain filterChain =
factory.createFilterChain((ServletRequest) request,
wrapper, 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) {
hreq.setAttribute(Globals.JSP_FILE_ATTR, jspFile);
}
/* IASRI 4665318
if ((servlet != null) && (filterChain != null)) {
filterChain.doFilter(hreq, hres);
}
*/
// START IASRI 4665318
if (servlet != null) {
if (filterChain != null) {
filterChain.setWrapper(wrapper);
filterChain.doFilter(hreq, hres);
} else {
wrapper.service(hreq, hres, servlet);
}
}
// END IASRI 4665318
} catch (ClientAbortException e) {
throwable = e;
exception(request, response, e);
} catch (IOException e) {
String msg = MessageFormat.format(rb.getString(SERVLET_SERVICE_EXCEPTION), wrapper.getName());
log(msg, e);
throwable = e;
exception(request, response, e);
} catch (UnavailableException e) {
String msg = MessageFormat.format(rb.getString(SERVLET_SERVICE_EXCEPTION), wrapper.getName());
log(msg, 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);
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
String msgServletUnavailable = MessageFormat.format(rb.getString(SERVLET_UNAVAILABLE), wrapper.getName());
response.setDetailMessage(msgServletUnavailable);
// END S1AS 4878272
} else if (available == Long.MAX_VALUE) {
// BEGIN S1AS 4878272
hres.sendError(HttpServletResponse.SC_NOT_FOUND);
String msgServletNotFound = MessageFormat.format(rb.getString(SERVLET_NOT_FOUND), wrapper.getName());
response.setDetailMessage(msgServletNotFound);
// END S1AS 4878272
}
// Do not save exception in 'throwable', because we
// do not want to do exception(request, response, e) processing
} catch (ServletException e) {
Throwable rootCause = StandardWrapper.getRootCause(e);
if (!(rootCause instanceof ClientAbortException)) {
String msg = MessageFormat.format(rb.getString(SERVLET_SERVICE_EXCEPTION), wrapper.getName());
log(msg, rootCause);
}
throwable = e;
exception(request, response, e);
} catch (Throwable e) {
String msg = MessageFormat.format(rb.getString(SERVLET_SERVICE_EXCEPTION), wrapper.getName());
log(msg, 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) {
String msg = MessageFormat.format(rb.getString(RELEASE_FILTERS_EXCEPTION), wrapper.getName());
log(msg, 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) {
String msg = MessageFormat.format(rb.getString(DEALLOCATE_EXCEPTION), wrapper.getName());
log(msg, 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) {
String msg = MessageFormat.format(rb.getString(SERVLET_UNLOAD_EXCEPTION), wrapper.getName());
log(msg, e);
if (throwable == null) {
exception(request, response, e);
}
}
return END_PIPELINE;
}
/**
* Tomcat style invocation.
*/
@Override
public void invoke(org.apache.catalina.connector.Request request,
org.apache.catalina.connector.Response response)
throws IOException, ServletException {
invoke((Request) request, (Response) response);
}
// -------------------------------------------------------- Private Methods
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
*/
private void log(String message) {
org.apache.catalina.Logger logger = null;
String containerName = null;
if (container != null) {
logger = container.getLogger();
containerName = container.getName();
}
if (logger != null) {
logger.log("StandardWrapperValve[" + containerName + "]: " +
message);
} else {
if (log.isLoggable(Level.INFO)) {
log.log(Level.INFO, STANDARD_WRAPPER_VALVE, new Object[] {containerName, message});
}
}
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
* @param t Associated exception
*/
private void log(String message, Throwable t) {
org.apache.catalina.Logger logger = null;
String containerName = null;
if (container != null) {
logger = container.getLogger();
containerName = container.getName();
}
if (logger != null) {
logger.log("StandardWrapperValve[" + containerName + "]: " +
message, t, org.apache.catalina.Logger.WARNING);
} else {
String msg = MessageFormat.format(rb.getString(STANDARD_WRAPPER_VALVE),
new Object[] {containerName, message});
log.log(Level.WARNING, msg, t);
}
}
/**
* 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) {
ServletRequest sreq = request.getRequest();
sreq.setAttribute(RequestDispatcher.ERROR_EXCEPTION, exception);
ServletResponse sresponse = response.getResponse();
/* GlassFish 6386229
if (sresponse instanceof HttpServletResponse)
((HttpServletResponse) sresponse).setStatus
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
*/
// START GlassFish 6386229
((HttpServletResponse) sresponse).setStatus
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
// END GlassFish 6386229
}
// Don't register in JMX
public ObjectName createObjectName(String domain, ObjectName parent)
throws MalformedObjectNameException {
return null;
}
}