Examples with FacesException jakarta.faces.FacesException used on opensource projects

Example 1 with FacesException

use of jakarta.faces.FacesException in project myfaces by apache.

the class UIComponentBase method getClientId.

/**
 * Get a string which can be output to the response which uniquely identifies this UIComponent within the current
 * view.
 * <p>
 * The component should have an id attribute already assigned to it; however if the id property is currently null
 * then a unique id is generated and set for this component. This only happens when components are programmatically
 * created without ids, as components created by a ViewHandler should be assigned ids when they are created.
 * <p>
 * If this component is a descendant of a NamingContainer then the client id is of form
 * "{namingContainerId}:{componentId}". Note that the naming container's id may itself be of compound form if it has
 * an ancestor naming container. Note also that this only applies to naming containers; other UIComponent types in
 * the component's ancestry do not affect the clientId.
 * <p>
 * Finally the renderer associated with this component is asked to convert the id into a suitable form. This allows
 * escaping of any characters in the clientId which are significant for the markup language generated by that
 * renderer.
 */
@Override
public String getClientId(FacesContext context) {
    Assert.notNull(context, "context");
    if (_clientId != null) {
        return _clientId;
    }
    String id = getId();
    if (id == null) {
        // Although this is an error prone side effect, we automatically create a new id
        // just to be compatible to the RI
        // The documentation of UniqueIdVendor says that this interface should be implemented by
        // components that also implements NamingContainer. The only component that does not implement
        // NamingContainer but UniqueIdVendor is UIViewRoot. Anyway we just can't be 100% sure about this
        // fact, so it is better to scan for the closest UniqueIdVendor. If it is not found use
        // viewRoot.createUniqueId, otherwise use UniqueIdVendor.createUniqueId(context,seed).
        UniqueIdVendor parentUniqueIdVendor = ComponentUtils.findClosest(UniqueIdVendor.class, this);
        if (parentUniqueIdVendor == null) {
            UIViewRoot viewRoot = context.getViewRoot();
            if (viewRoot != null) {
                id = viewRoot.createUniqueId();
            } else {
                // The RI throws a NPE
                String location = getComponentLocation(this);
                throw new FacesException("Cannot create clientId. No id is assigned for component" + " to create an id and UIViewRoot is not defined: " + ComponentUtils.getPathToComponent(this) + (location != null ? " created from: " + location : ""));
            }
        } else {
            id = parentUniqueIdVendor.createUniqueId(context, null);
        }
        setId(id);
    }
    UIComponent namingContainer = ComponentUtils.findClosestNamingContainer(this, false);
    if (namingContainer != null) {
        String containerClientId = namingContainer.getContainerClientId(context);
        if (containerClientId != null) {
            StringBuilder bld = _getSharedStringBuilder(context);
            _clientId = bld.append(containerClientId).append(context.getNamingContainerSeparatorChar()).append(id).toString();
        } else {
            _clientId = id;
        }
    } else {
        _clientId = id;
    }
    Renderer renderer = getRenderer(context);
    if (renderer != null) {
        _clientId = renderer.convertClientId(context, _clientId);
    }
    return _clientId;
}

Example 2 with FacesException

use of jakarta.faces.FacesException in project myfaces by apache.

the class UIData method invokeOnComponent.

@Override
public boolean invokeOnComponent(FacesContext context, String clientId, ContextCallback callback) throws FacesException {
    Assert.notNull(context, "context");
    Assert.notNull(clientId, "clientId");
    Assert.notNull(callback, "callback");
    final String baseClientId = getClientId(context);
    // searching for this component?
    boolean returnValue = baseClientId.equals(clientId);
    boolean isCachedFacesContext = isCachedFacesContext();
    if (!isCachedFacesContext) {
        setCachedFacesContext(context);
    }
    pushComponentToEL(context, this);
    try {
        if (returnValue) {
            try {
                callback.invokeContextCallback(context, this);
                return true;
            } catch (Exception e) {
                throw new FacesException(e);
            }
        }
        // Now Look throught facets on this UIComponent
        if (this.getFacetCount() > 0) {
            for (Iterator<UIComponent> it = this.getFacets().values().iterator(); !returnValue && it.hasNext(); ) {
                returnValue = it.next().invokeOnComponent(context, clientId, callback);
            }
        }
        if (returnValue) {
            return returnValue;
        }
        // is the component an inner component?
        if (clientId.startsWith(baseClientId)) {
            // Check if the clientId for the component, which we
            // are looking for, has a rowIndex attached
            char separator = context.getNamingContainerSeparatorChar();
            Pattern pattern = getSubIdPattern(context, separator);
            String subId = clientId.substring(baseClientId.length() + 1);
            // the subId matches the regular expression
            if (clientId.charAt(baseClientId.length()) == separator && pattern.matcher(subId).matches()) {
                String clientRow = subId.substring(0, subId.indexOf(separator));
                // Now we save the current position
                int oldRow = this.getRowIndex();
                // try-finally --> make sure, that the old row index is restored
                try {
                    // The conversion is safe, because its already checked on the
                    // regular expresion
                    this.setRowIndex(Integer.parseInt(clientRow));
                    // check, if the row is available
                    if (!isRowAvailable()) {
                        return false;
                    }
                    for (Iterator<UIComponent> it1 = getChildren().iterator(); !returnValue && it1.hasNext(); ) {
                        // recursive call to find the component
                        returnValue = it1.next().invokeOnComponent(context, clientId, callback);
                    }
                } finally {
                    // Restore the old position. Doing this prevent
                    // side effects.
                    this.setRowIndex(oldRow);
                }
            } else {
                // attached to the clientId of UIColumns' Facets' children.
                for (Iterator<UIComponent> itChildren = this.getChildren().iterator(); !returnValue && itChildren.hasNext(); ) {
                    UIComponent child = itChildren.next();
                    if (child instanceof UIColumn && clientId.equals(child.getClientId(context))) {
                        try {
                            callback.invokeContextCallback(context, child);
                        } catch (Exception e) {
                            throw new FacesException(e);
                        }
                        returnValue = true;
                    }
                    // process the child's facets
                    if (child.getFacetCount() > 0) {
                        for (Iterator<UIComponent> itChildFacets = child.getFacets().values().iterator(); !returnValue && itChildFacets.hasNext(); ) {
                            // recursive call to find the component
                            returnValue = itChildFacets.next().invokeOnComponent(context, clientId, callback);
                        }
                    }
                }
            }
        }
    } finally {
        // all components must call popComponentFromEl after visiting is finished
        popComponentFromEL(context);
        if (!isCachedFacesContext) {
            setCachedFacesContext(null);
        }
    }
    return returnValue;
}

Example 3 with FacesException

use of jakarta.faces.FacesException in project myfaces by apache.

the class ErrorPageWriter method handle.

public static void handle(FacesContext facesContext, Collection<UIComponent> components, Throwable... exs) throws FacesException {
    for (Throwable ex : exs) {
        prepareExceptionStack(ex);
    }
    if (!facesContext.getExternalContext().isResponseCommitted()) {
        facesContext.getExternalContext().responseReset();
    }
    int responseStatus = -1;
    for (Throwable ex : exs) {
        if (ex instanceof ViewNotFoundException) {
            responseStatus = HttpServletResponse.SC_NOT_FOUND;
            break;
        } else {
            responseStatus = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
        }
    }
    if (responseStatus != -1) {
        facesContext.getExternalContext().setResponseStatus(responseStatus);
    }
    // normal request --> html error page
    facesContext.getExternalContext().setResponseContentType("text/html");
    facesContext.getExternalContext().setResponseCharacterEncoding("UTF-8");
    try {
        // We need the real one, because the one returned from FacesContext.getResponseWriter()
        // is configured with the encoding of the view.
        Writer writer = facesContext.getExternalContext().getResponseOutputWriter();
        debugHtml(writer, facesContext, facesContext.getViewRoot(), components, exs);
    } catch (IOException ioe) {
        throw new FacesException("Could not write the error page", ioe);
    }
    // mark the response as complete
    facesContext.responseComplete();
}

Example 4 with FacesException

use of jakarta.faces.FacesException in project myfaces by apache.

the class RendererUtils method findUISelectManyConverter.

/**
 * Find proper Converter for the entries in the associated Collection or array of
 * the given UISelectMany as specified in API Doc of UISelectMany.
 * If considerValueType is true, the valueType attribute will be used
 * in addition to the standard algorithm to get a valid converter.
 *
 * @return the Converter or null if no Converter specified or needed
 * @throws FacesException if the Converter could not be created
 */
public static Converter findUISelectManyConverter(FacesContext facesContext, UISelectMany component, boolean considerValueType) {
    // If the component has an attached Converter, use it.
    Converter converter = component.getConverter();
    if (converter != null) {
        return converter;
    }
    if (considerValueType) {
        // try to get a converter from the valueType attribute
        converter = SharedRendererUtils.getValueTypeConverter(facesContext, component);
        if (converter != null) {
            return converter;
        }
    }
    // Try to find out by value expression
    ValueExpression ve = component.getValueExpression("value");
    if (ve == null) {
        return null;
    }
    // Try to get the type from the actual value or,
    // if value == null, obtain the type from the ValueExpression
    Class<?> valueType = null;
    Object value = ve.getValue(facesContext.getELContext());
    valueType = (value != null) ? value.getClass() : ve.getType(facesContext.getELContext());
    if (valueType == null) {
        return null;
    }
    // managed bean properties of type Object that resolve to null at this point
    if (Collection.class.isAssignableFrom(valueType) || Object.class.equals(valueType)) {
        // try to get the by-type-converter from the type of the SelectItems
        return SharedRendererUtils.getSelectItemsValueConverter(new SelectItemsIterator(component, facesContext), facesContext);
    }
    if (!valueType.isArray()) {
        throw new IllegalArgumentException("ValueExpression for UISelectMany : " + ComponentUtils.getPathToComponent(component) + " must be of type Collection or Array");
    }
    Class<?> arrayComponentType = valueType.getComponentType();
    if (String.class.equals(arrayComponentType)) {
        // No converter needed for String type
        return null;
    }
    if (Object.class.equals(arrayComponentType)) {
        // try to get the by-type-converter from the type of the SelectItems
        return SharedRendererUtils.getSelectItemsValueConverter(new SelectItemsIterator(component, facesContext), facesContext);
    }
    try {
        return facesContext.getApplication().createConverter(arrayComponentType);
    } catch (FacesException e) {
        log.log(Level.SEVERE, "No Converter for type " + arrayComponentType.getName() + " found", e);
        return null;
    }
}

Example 5 with FacesException

use of jakarta.faces.FacesException in project myfaces by apache.

the class RenderResponseExecutor method execute.

@Override
public boolean execute(FacesContext facesContext) {
    Application application = facesContext.getApplication();
    ViewHandler viewHandler = application.getViewHandler();
    UIViewRoot root;
    UIViewRoot previousRoot;
    String viewId;
    String newViewId;
    boolean isNotSameRoot;
    int loops = 0;
    int maxLoops = 15;
    if (facesContext.getViewRoot() == null) {
        throw new ViewNotFoundException("A view is required to execute " + facesContext.getCurrentPhaseId());
    }
    forceSessionCreation(facesContext);
    try {
        // do-while, because the view might change in PreRenderViewEvent-listeners
        do {
            root = facesContext.getViewRoot();
            previousRoot = root;
            viewId = root.getViewId();
            ViewDeclarationLanguage vdl = viewHandler.getViewDeclarationLanguage(facesContext, viewId);
            if (vdl != null) {
                vdl.buildView(facesContext, root);
            }
            // publish a PreRenderViewEvent: note that the event listeners
            // of this event can change the view, so we have to perform the algorithm
            // until the viewId does not change when publishing this event.
            application.publishEvent(facesContext, PreRenderViewEvent.class, root);
            // was the response marked as complete by an event listener?
            if (facesContext.getResponseComplete()) {
                return false;
            }
            root = facesContext.getViewRoot();
            newViewId = root.getViewId();
            isNotSameRoot = !((newViewId == null ? newViewId == viewId : newViewId.equals(viewId)) && previousRoot.equals(root));
            loops++;
        } while ((newViewId == null && viewId != null) || (newViewId != null && (!newViewId.equals(viewId) || isNotSameRoot)) && loops < maxLoops);
        if (loops == maxLoops) {
            // PreRenderView reach maxLoops - probably a infinitive recursion:
            Level level = facesContext.isProjectStage(ProjectStage.Production) ? Level.FINE : Level.WARNING;
            if (log.isLoggable(level)) {
                log.log(level, "Cicle over buildView-PreRenderViewEvent on RENDER_RESPONSE phase " + "reaches maximal limit, please check listeners for infinite recursion.");
            }
        }
        viewHandler.renderView(facesContext, root);
        application.publishEvent(facesContext, PostRenderViewEvent.class, root);
        // log all unhandled FacesMessages, don't swallow them
        // perf: org.apache.myfaces.context.servlet.FacesContextImpl.getMessageList() creates
        // new Collections.unmodifiableList with every invocation->  call it only once
        // and messageList is RandomAccess -> use index based loop
        List<FacesMessage> messageList = facesContext.getMessageList();
        if (!messageList.isEmpty()) {
            StringBuilder builder = new StringBuilder();
            boolean shouldLog = false;
            for (int i = 0, size = messageList.size(); i < size; i++) {
                FacesMessage message = messageList.get(i);
                if (!message.isRendered()) {
                    builder.append("\n- ");
                    builder.append(message.getDetail());
                    shouldLog = true;
                }
            }
            if (shouldLog) {
                log.log(Level.WARNING, "There are some unhandled FacesMessages, " + "this means not every FacesMessage had a chance to be rendered.\n" + "These unhandled FacesMessages are: " + builder.toString());
            }
        }
    } catch (IOException e) {
        throw new FacesException(e.getMessage(), e);
    }
    return false;
}