@Override
public void start() {
embedded = new Tomcat();
AuthConfigFactory.setFactory(new AuthConfigFactoryImpl());
Context context = embedded.addContext(getContextPath(), "/");
context.addParameter("contextConfigLocation", getContextResource());
context.addApplicationListener(ContextLoaderListener.class.getName());
embedded.getHost().setAppBase("");
// Each servlet should get an unique name, otherwise all servers will reuse
// one and the same servlet instance. Note that name clashes with servlets
// created somewhere else are still possible.
String servletName =
getServletName() == null
? "ipf-servlet-" + SERVLET_COUNTER.getAndIncrement()
: getServletName();
wrapper = context.createWrapper();
wrapper.setName(servletName);
wrapper.setServletClass(getServlet().getClass().getName());
for (Map.Entry<String, String> parameters : getInitParameters().entrySet()) {
wrapper.addInitParameter(parameters.getKey(), parameters.getValue());
}
context.addChild(wrapper);
context.addServletMapping(getServletPath(), servletName);
/*
VirtualWebappLoader loader = new VirtualWebappLoader(this.getClass().getClassLoader());
loader.setVirtualClasspath(System.getProperty("java.class.path"));
context.setLoader(loader);
*/
Connector connector = embedded.getConnector();
connector.setPort(getPort());
if (isSecure()) {
connector.setSecure(true);
connector.setScheme("https");
connector.setProperty("SSLEnabled", "true");
connector.setProperty("sslProtocol", "TLS");
connector.setProperty("keystoreFile", getKeystoreFile());
connector.setProperty("keystorePass", getKeystorePass());
connector.setProperty("truststoreFile", getTruststoreFile());
connector.setProperty("truststorePass", getTruststorePass());
if (getClientAuthType() == ClientAuthType.MUST) {
connector.setProperty("clientAuth", "true");
} else if (getClientAuthType() == ClientAuthType.WANT) {
connector.setProperty("clientAuth", "want");
}
}
try {
embedded.start();
wrapper.allocate();
log.info("Started embedded Tomcat server");
} catch (Exception e) {
throw new AssertionError(e);
}
}
/**
* Serve the specified request, creating the corresponding response. After the first time a
* particular servlet class is requested, it will be served directly (like any registered servlet)
* because it will have been registered and mapped in our associated Context.
*
* @param request The servlet request we are processing
* @param response The servlet response we are creating
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet-specified error occurs
*/
public void serveRequest(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
// Disallow calling this servlet via a named dispatcher
if (request.getAttribute(Globals.NAMED_DISPATCHER_ATTR) != null)
throw new ServletException(sm.getString("invokerServlet.notNamed"));
// Identify the input parameters and our "included" state
String inRequestURI = null;
String inServletPath = null;
String inPathInfo = null;
boolean included = (request.getAttribute(Globals.REQUEST_URI_ATTR) != null);
if (included) {
inRequestURI = (String) request.getAttribute(Globals.REQUEST_URI_ATTR);
inServletPath = (String) request.getAttribute(Globals.SERVLET_PATH_ATTR);
inPathInfo = (String) request.getAttribute(Globals.PATH_INFO_ATTR);
} else {
inRequestURI = request.getRequestURI();
inServletPath = request.getServletPath();
inPathInfo = request.getPathInfo();
}
if (debug >= 1) {
log("included='" + included + "', requestURI='" + inRequestURI + "'");
log(" servletPath='" + inServletPath + "', pathInfo='" + inPathInfo + "'");
}
// Make sure a servlet name or class name was specified
if (inPathInfo == null) {
if (debug >= 1) log("Invalid pathInfo '" + inPathInfo + "'");
if (included)
throw new ServletException(sm.getString("invokerServlet.invalidPath", inRequestURI));
else {
response.sendError(HttpServletResponse.SC_NOT_FOUND, inRequestURI);
return;
}
}
// Identify the outgoing servlet name or class, and outgoing path info
String pathInfo = inPathInfo;
String servletClass = pathInfo.substring(1);
int slash = servletClass.indexOf('/');
// if (debug >= 2)
// log(" Calculating with servletClass='" + servletClass +
// "', pathInfo='" + pathInfo + "', slash=" + slash);
if (slash >= 0) {
pathInfo = servletClass.substring(slash);
servletClass = servletClass.substring(0, slash);
} else {
pathInfo = "";
}
if (servletClass.startsWith("org.apache.catalina")) {
response.sendError(HttpServletResponse.SC_NOT_FOUND, inRequestURI);
return;
}
if (debug >= 1)
log("Processing servlet '" + servletClass + "' with path info '" + pathInfo + "'");
String name = "org.apache.catalina.INVOKER." + servletClass;
String pattern = inServletPath + "/" + servletClass + "/*";
Wrapper wrapper = null;
// Synchronize to avoid race conditions when multiple requests
// try to initialize the same servlet at the same time
synchronized (this) {
// Are we referencing an existing servlet class or name?
wrapper = (Wrapper) context.findChild(servletClass);
if (wrapper == null) wrapper = (Wrapper) context.findChild(name);
if (wrapper != null) {
if (debug >= 1)
log(
"Using wrapper for servlet '"
+ wrapper.getName()
+ "' with mapping '"
+ pattern
+ "'");
context.addServletMapping(pattern, wrapper.getName());
}
// No, create a new wrapper for the specified servlet class
else {
if (debug >= 1)
log("Creating wrapper for '" + servletClass + "' with mapping '" + pattern + "'");
try {
wrapper = context.createWrapper();
wrapper.setName(name);
wrapper.setLoadOnStartup(1);
wrapper.setServletClass(servletClass);
context.addChild(wrapper);
context.addServletMapping(pattern, name);
} catch (Throwable t) {
log(sm.getString("invokerServlet.cannotCreate", inRequestURI), t);
context.removeServletMapping(pattern);
context.removeChild(wrapper);
if (included)
throw new ServletException(
sm.getString("invokerServlet.cannotCreate", inRequestURI), t);
else {
response.sendError(HttpServletResponse.SC_NOT_FOUND, inRequestURI);
return;
}
}
}
}
// Create a request wrapper to pass on to the invoked servlet
InvokerHttpRequest wrequest = new InvokerHttpRequest(request);
wrequest.setRequestURI(inRequestURI);
StringBuffer sb = new StringBuffer(inServletPath);
sb.append("/");
sb.append(servletClass);
wrequest.setServletPath(sb.toString());
if ((pathInfo == null) || (pathInfo.length() < 1)) {
wrequest.setPathInfo(null);
wrequest.setPathTranslated(null);
} else {
wrequest.setPathInfo(pathInfo);
wrequest.setPathTranslated(getServletContext().getRealPath(pathInfo));
}
// Allocate a servlet instance to perform this request
Servlet instance = null;
try {
// if (debug >= 2)
// log(" Allocating servlet instance");
instance = wrapper.allocate();
} catch (ServletException e) {
log(sm.getString("invokerServlet.allocate", inRequestURI), e);
context.removeServletMapping(pattern);
context.removeChild(wrapper);
Throwable rootCause = e.getRootCause();
if (rootCause == null) rootCause = e;
if (rootCause instanceof ClassNotFoundException) {
response.sendError(HttpServletResponse.SC_NOT_FOUND, inRequestURI);
return;
} else if (rootCause instanceof IOException) {
throw (IOException) rootCause;
} else if (rootCause instanceof RuntimeException) {
throw (RuntimeException) rootCause;
} else if (rootCause instanceof ServletException) {
throw (ServletException) rootCause;
} else {
throw new ServletException(
sm.getString("invokerServlet.allocate", inRequestURI), rootCause);
}
} catch (Throwable e) {
log(sm.getString("invokerServlet.allocate", inRequestURI), e);
context.removeServletMapping(pattern);
context.removeChild(wrapper);
throw new ServletException(sm.getString("invokerServlet.allocate", inRequestURI), e);
}
// After loading the wrapper, restore some of the fields when including
if (included) {
wrequest.setRequestURI(request.getRequestURI());
wrequest.setPathInfo(request.getPathInfo());
wrequest.setServletPath(request.getServletPath());
}
// Invoke the service() method of the allocated servlet
try {
String jspFile = wrapper.getJspFile();
if (jspFile != null) request.setAttribute(Globals.JSP_FILE_ATTR, jspFile);
else request.removeAttribute(Globals.JSP_FILE_ATTR);
request.setAttribute(Globals.INVOKED_ATTR, request.getServletPath());
// if (debug >= 2)
// log(" Calling service() method, jspFile=" +
// jspFile);
instance.service(wrequest, response);
request.removeAttribute(Globals.INVOKED_ATTR);
request.removeAttribute(Globals.JSP_FILE_ATTR);
} catch (IOException e) {
// if (debug >= 2)
// log(" service() method IOException", e);
request.removeAttribute(Globals.INVOKED_ATTR);
request.removeAttribute(Globals.JSP_FILE_ATTR);
try {
wrapper.deallocate(instance);
} catch (Throwable f) {;
}
throw e;
} catch (UnavailableException e) {
// if (debug >= 2)
// log(" service() method UnavailableException", e);
context.removeServletMapping(pattern);
request.removeAttribute(Globals.INVOKED_ATTR);
request.removeAttribute(Globals.JSP_FILE_ATTR);
try {
wrapper.deallocate(instance);
} catch (Throwable f) {;
}
throw e;
} catch (ServletException e) {
// if (debug >= 2)
// log(" service() method ServletException", e);
request.removeAttribute(Globals.INVOKED_ATTR);
request.removeAttribute(Globals.JSP_FILE_ATTR);
try {
wrapper.deallocate(instance);
} catch (Throwable f) {;
}
throw e;
} catch (RuntimeException e) {
// if (debug >= 2)
// log(" service() method RuntimeException", e);
request.removeAttribute(Globals.INVOKED_ATTR);
request.removeAttribute(Globals.JSP_FILE_ATTR);
try {
wrapper.deallocate(instance);
} catch (Throwable f) {;
}
throw e;
} catch (Throwable e) {
// if (debug >= 2)
// log(" service() method Throwable", e);
request.removeAttribute(Globals.INVOKED_ATTR);
request.removeAttribute(Globals.JSP_FILE_ATTR);
try {
wrapper.deallocate(instance);
} catch (Throwable f) {;
}
throw new ServletException("Invoker service() exception", e);
}
// Deallocate the allocated servlet instance
try {
// if (debug >= 2)
// log(" deallocate servlet instance");
wrapper.deallocate(instance);
} catch (ServletException e) {
log(sm.getString("invokerServlet.deallocate", inRequestURI), e);
throw e;
} catch (Throwable e) {
log(sm.getString("invokerServlet.deallocate", inRequestURI), e);
throw new ServletException(sm.getString("invokerServlet.deallocate", inRequestURI), e);
}
}
