Examples of org.apache.catalina.Valve.invoke()

org.apache.catalina.Valve.invoke()
Perform request processing as required by this Valve.

An individual Valve MAY perform the following actions, in the specified order:
- Examine and/or modify the properties of the specified Request and Response.
- Examine the properties of the specified Request, completely generate the corresponding Response, and return control to the caller.
- Examine the properties of the specified Request and Response, wrap either or both of these objects to supplement their functionality, and pass them on.
- If the corresponding Response was not generated (and control was not returned, call the next Valve in the pipeline (if there is one) by executing context.invokeNext().
- Examine, but not modify, the properties of the resulting Response (which was created by a subsequently invoked Valve or Container).
A Valve MUST NOT do any of the following things:
- Change request properties that have already been used to direct the flow of processing control for this request (for instance, trying to change the virtual host to which a Request should be sent from a pipeline attached to a Host or Context in the standard implementation).
- Create a completed Response AND pass this Request and Response on to the next Valve in the pipeline.
- Consume bytes from the input stream associated with the Request, unless it is completely generating the response, or wrapping the request before passing it on.
- Modify the HTTP headers included with the Response after the invokeNext() method has returned.
- Perform any actions on the output stream associated with the specified Response after the invokeNext() method has returned.
@param request The servlet request to be processed @param response The servlet response to be created @exception IOException if an input/output error occurs, or is thrownby a subsequently invoked Valve, Filter, or Servlet @exception ServletException if a servlet error occurs, or is thrownby a subsequently invoked Valve, Filter, or Servlet


    public synchronized void start() throws LifecycleException {
        if (pipelineInitialized) {
            try {
                Valve valve = getFirst();
                valve.invoke(null, null);
                //Install the DefaultSubjectValve after the authentication valve so the default subject is supplied
                //only if no real subject is authenticated.


                Valve defaultSubjectValve = new DefaultSubjectValve(defaultSubject);
                addValve(defaultSubjectValve);

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    public synchronized void start() throws LifecycleException {
        if (pipelineInitialized) {
            try {
                Valve valve = getFirst();
                valve.invoke(null, null);
                //Install the DefaultSubjectValve after the authentication valve so the default subject is supplied
                //only if no real subject is authenticated.


                Valve defaultSubjectValve = new DefaultSubjectValve(defaultSubject);
                addValve(defaultSubjectValve);

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    public synchronized void start() throws LifecycleException {
        if (pipelineInitialized) {
            try {
                Valve valve = getFirst();
                valve.invoke(null, null);
                //Install the DefaultSubjectValve after the authentication valve so the default subject is supplied
                //only if no real subject is authenticated.
                
                Valve defaultSubjectValve = new DefaultSubjectValve(defaultSubject);
                addValve(defaultSubjectValve);

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        wrapper.getPipeline().invoke(request, response);
        */
        // START GlassFish 1343
        Valve basic = wrapper.getPipeline().getBasic();
        if (basic != null) {
            basic.invoke(request, response);
            basic.postInvoke(request, response);
        }
        // END GlassFish 1343
        return END_PIPELINE;
        // END OF IASRI 4665318

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    protected void startInternal() throws LifecycleException {
        if (pipelineInitialized) {
            try {
                Valve valve = getPipeline().getFirst();
                valve.invoke(null, null);


                // if a servlet uses run-as then make sure role desgnates have been provided
                if (hasRunAsServlet()) {
                    if (runAsSource == null) {
                        throw new GeronimoSecurityException("web.xml or annotation specifies a run-as role but no subject configuration supplied for run-as roles");

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                }
            }
        }
        Valve next = getNext();
        if (next != null)
            next.invoke(request, response);
    }


    // from AuthenticatorBase.getSession()
    static Session getSession(Request request, boolean create) 
    {

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   public void invoke(Request request, Response response) throws IOException, ServletException
   {
      if (delegationEnabled)
      {
         Valve delegate = getOrLoadDelegate(delegateValveClassName);
         delegate.invoke(request, response);
      }
      else
      {
         next.invoke(request, response);
      }

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    public synchronized void start() throws LifecycleException {
        if (pipelineInitialized) {
            try {
                Valve valve = getFirst();
                valve.invoke(null, null);
                //Install the DefaultSubjectValve after the authentication valve so the default subject is supplied
                //only if no real subject is authenticated.


                Valve defaultSubjectValve = new DefaultSubjectValve(defaultSubject);
                addValve(defaultSubjectValve);

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    @Override
    protected void startInternal() throws LifecycleException {
        if (pipelineInitialized) {
            try {
                Valve valve = getPipeline().getFirst();
                valve.invoke(null, null);
                // if a servlet uses run-as then make sure role designates have been provided
                if (hasRunAsServlet()) {
                    if (runAsSource == null) {
                        throw new GeronimoSecurityException("web.xml or annotation specifies a run-as role but no subject configuration supplied for run-as roles");
                    }

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                }
            }
        }
        Valve next = getNext();
        if (next != null)
            next.invoke(request, response);
    }


    // from AuthenticatorBase.getSession()
    static Session getSession(Request request, boolean create) {

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