Examples with ServletRequestAttributeListener javax.servlet.ServletRequestAttributeListener used on opensource projects

Example 1 with ServletRequestAttributeListener

use of javax.servlet.ServletRequestAttributeListener in project jetty.project by eclipse.

the class Request method setAttribute.

/* ------------------------------------------------------------ */
/*
     * Set a request attribute. if the attribute name is "org.eclipse.jetty.server.server.Request.queryEncoding" then the value is also passed in a call to
     * {@link #setQueryEncoding}.
     *
     * @see javax.servlet.ServletRequest#setAttribute(java.lang.String, java.lang.Object)
     */
@Override
public void setAttribute(String name, Object value) {
    Object old_value = _attributes == null ? null : _attributes.getAttribute(name);
    if ("org.eclipse.jetty.server.Request.queryEncoding".equals(name))
        setQueryEncoding(value == null ? null : value.toString());
    else if ("org.eclipse.jetty.server.sendContent".equals(name))
        LOG.warn("Deprecated: org.eclipse.jetty.server.sendContent");
    if (_attributes == null)
        _attributes = new AttributesMap();
    _attributes.setAttribute(name, value);
    if (!_requestAttributeListeners.isEmpty()) {
        final ServletRequestAttributeEvent event = new ServletRequestAttributeEvent(_context, this, name, old_value == null ? value : old_value);
        for (ServletRequestAttributeListener l : _requestAttributeListeners) {
            if (old_value == null)
                l.attributeAdded(event);
            else if (value == null)
                l.attributeRemoved(event);
            else
                l.attributeReplaced(event);
        }
    }
}

Example 2 with ServletRequestAttributeListener

use of javax.servlet.ServletRequestAttributeListener in project Payara by payara.

the class Request method removeAttribute.

/**
 * Remove the specified request attribute if it exists.
 *
 * @param name Name of the request attribute to remove
 */
@Override
public void removeAttribute(String name) {
    Object value = null;
    boolean found = attributes.containsKey(name);
    if (found) {
        value = attributes.get(name);
        attributes.remove(name);
    } else {
        return;
    }
    // Notify interested application event listeners
    List<EventListener> listeners = context.getApplicationEventListeners();
    if (listeners.isEmpty()) {
        return;
    }
    ServletRequestAttributeEvent event = new ServletRequestAttributeEvent(servletContext, getRequest(), name, value);
    Iterator<EventListener> iter = listeners.iterator();
    while (iter.hasNext()) {
        EventListener eventListener = iter.next();
        if (!(eventListener instanceof ServletRequestAttributeListener)) {
            continue;
        }
        ServletRequestAttributeListener listener = (ServletRequestAttributeListener) eventListener;
        try {
            listener.attributeRemoved(event);
        } catch (Throwable t) {
            log(rb.getString(LogFacade.ATTRIBUTE_EVENT_LISTENER_EXCEPTION), t);
            // Error valve will pick this exception up and display it to user
            attributes.put(RequestDispatcher.ERROR_EXCEPTION, t);
        }
    }
}

Example 3 with ServletRequestAttributeListener

use of javax.servlet.ServletRequestAttributeListener in project nutzboot by nutzam.

the class TomcatStarter method addNutzSupport.

private void addNutzSupport() {
    List<WebFilterFace> filters = appContext.getBeans(WebFilterFace.class);
    Collections.sort(filters, Comparator.comparing(WebFilterFace::getOrder));
    filters.forEach((face) -> addFilter(face));
    appContext.getBeans(WebServletFace.class).forEach((face) -> {
        if (face.getServlet() == null) {
            return;
        }
        addServlet(face);
    });
    appContext.getBeans(WebEventListenerFace.class).forEach((face) -> {
        EventListener listener = face.getEventListener();
        if (listener != null) {
            if ((listener instanceof ServletContextAttributeListener) || (listener instanceof ServletRequestAttributeListener) || (listener instanceof ServletRequestListener) || (listener instanceof HttpSessionIdListener) || (listener instanceof HttpSessionAttributeListener)) {
                this.tomcatContext.addApplicationEventListener(listener);
            }
            if ((listener instanceof ServletContextListener) || (listener instanceof HttpSessionListener)) {
                this.tomcatContext.addApplicationLifecycleListener(listener);
            }
        }
    });
}

Example 4 with ServletRequestAttributeListener

use of javax.servlet.ServletRequestAttributeListener in project Payara by payara.

the class StandardContext method addListener.

/**
 * Adds the given listener instance to this ServletContext.
 *
 * @param t the listener to be added
 * @param isProgrammatic true if the listener is being added
 * programmatically, and false if it has been declared in the deployment
 * descriptor
 */
private <T extends EventListener> void addListener(T t, boolean isProgrammatic) {
    if (isContextInitializedCalled) {
        String msg = MessageFormat.format(rb.getString(LogFacade.SERVLET_CONTEXT_ALREADY_INIT_EXCEPTION), new Object[] { "addListener", getName() });
        throw new IllegalStateException(msg);
    }
    if ((t instanceof ServletContextListener) && isProgrammatic && !isProgrammaticServletContextListenerRegistrationAllowed) {
        throw new IllegalArgumentException("Not allowed to register " + "ServletContextListener programmatically");
    }
    boolean added = false;
    if (t instanceof ServletContextAttributeListener || t instanceof ServletRequestAttributeListener || t instanceof ServletRequestListener || t instanceof HttpSessionAttributeListener || t instanceof HttpSessionIdListener) {
        eventListeners.add(t);
        added = true;
    }
    if (t instanceof HttpSessionListener) {
        sessionListeners.add((HttpSessionListener) t);
        if (!added) {
            added = true;
        }
    }
    if (t instanceof ServletContextListener) {
        ServletContextListener proxy = (ServletContextListener) t;
        if (isProgrammatic) {
            proxy = new RestrictedServletContextListener((ServletContextListener) t);
        }
        // Always add the JSF listener as the first element,
        // see GlassFish Issue 2563 for details
        boolean isFirst = "com.sun.faces.config.ConfigureListener".equals(t.getClass().getName());
        if (isFirst) {
            contextListeners.add(0, proxy);
        } else {
            contextListeners.add(proxy);
        }
        if (!added) {
            added = true;
        }
    }
    if (!added) {
        throw new IllegalArgumentException("Invalid listener type " + t.getClass().getName());
    }
}

Example 5 with ServletRequestAttributeListener

use of javax.servlet.ServletRequestAttributeListener in project Payara by payara.

the class Request method setAttribute.

/**
 * Set the specified request attribute to the specified value.
 *
 * @param name Name of the request attribute to set
 * @param value The associated value
 */
@Override
public void setAttribute(String name, Object value) {
    // Name cannot be null
    if (name == null) {
        throw new IllegalArgumentException(rb.getString(LogFacade.NULL_ATTRIBUTE_NAME_EXCEPTION));
    }
    // Null value is the same as removeAttribute()
    if (value == null) {
        removeAttribute(name);
        return;
    }
    if (name.equals(Globals.DISPATCHER_TYPE_ATTR)) {
        dispatcherTypeAttr = value;
        return;
    } else if (name.equals(Globals.DISPATCHER_REQUEST_PATH_ATTR)) {
        requestDispatcherPath = value;
        return;
    }
    boolean replaced = false;
    // Do the security check before any updates are made
    if (Globals.IS_SECURITY_ENABLED && name.equals("org.apache.tomcat.sendfile.filename")) {
        // Use the canonical file name to avoid any possible symlink and
        // relative path issues
        String canonicalPath;
        try {
            canonicalPath = new File(value.toString()).getCanonicalPath();
        } catch (IOException e) {
            String msg = MessageFormat.format(rb.getString(LogFacade.UNABLE_DETERMINE_CANONICAL_NAME), value);
            throw new SecurityException(msg, e);
        }
        // Sendfile is performed in Tomcat's security context so need to
        // check if the web app is permitted to access the file while still
        // in the web app's security context
        System.getSecurityManager().checkRead(canonicalPath);
        // Update the value so the canonical path is used
        value = canonicalPath;
    }
    Object oldValue = attributes.put(name, value);
    if (oldValue != null) {
        replaced = true;
    }
    // Pass special attributes to the ngrizzly layer
    if (name.startsWith("grizzly.")) {
        coyoteRequest.setAttribute(name, value);
    }
    // END SJSAS 6231069
    // Notify interested application event listeners
    List<EventListener> listeners = context.getApplicationEventListeners();
    if (listeners.isEmpty()) {
        return;
    }
    ServletRequestAttributeEvent event = null;
    if (replaced) {
        event = new ServletRequestAttributeEvent(servletContext, getRequest(), name, oldValue);
    } else {
        event = new ServletRequestAttributeEvent(servletContext, getRequest(), name, value);
    }
    Iterator<EventListener> iter = listeners.iterator();
    while (iter.hasNext()) {
        EventListener eventListener = iter.next();
        if (!(eventListener instanceof ServletRequestAttributeListener)) {
            continue;
        }
        ServletRequestAttributeListener listener = (ServletRequestAttributeListener) eventListener;
        try {
            if (replaced) {
                listener.attributeReplaced(event);
            } else {
                listener.attributeAdded(event);
            }
        } catch (Throwable t) {
            log(rb.getString(LogFacade.ATTRIBUTE_EVENT_LISTENER_EXCEPTION), t);
            // Error valve will pick this exception up and display it to user
            attributes.put(RequestDispatcher.ERROR_EXCEPTION, t);
        }
    }
}