Java Code Examples for javax.faces.context.FacesContext#getCurrentInstance()

/**
 * Load the bundles by the name
 *
 * @param bundles the bundles to load
 */
private void load(String[] bundles) {

    final FacesContext facesContext = FacesContext.getCurrentInstance();

    for (String bundle : bundles) {

        final Locale locale;

        if (facesContext != null) {
            locale = facesContext.getApplication().getDefaultLocale();
        } else {
            locale = Locale.getDefault();
        }

        final ResourceBundle resourceBundle = ResourceBundle.getBundle(bundle, locale);

        resourceBundle.getKeys()
                .asIterator()
                .forEachRemaining(key -> this.combined.put(key, resourceBundle.getString(key)));
    }
}
 

public String getQuotesBySymbols() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    HttpSession session = (HttpSession) facesContext.getExternalContext().getSession(true);
    session.setAttribute("symbols", symbols);
    
    ArrayList quotes = new ArrayList();
    java.util.StringTokenizer st = new java.util.StringTokenizer(symbols, " ,");
    QuoteData[] quoteDatas = new QuoteData[6];
    int count = 0;
    while (st.hasMoreElements()) {
        String symbol = st.nextToken();
        TradeAction tAction = new TradeAction();            
        try {
            QuoteDataBean quoteData = tAction.getQuote(symbol);
            quoteDatas[count] =  new QuoteData(quoteData.getOpen(), quoteData.getPrice(), quoteData.getSymbol(), quoteData.getHigh(), quoteData.getLow(), quoteData.getCompanyName(),quoteData.getVolume(), quoteData.getChange());
            count ++;
        } catch (Exception e) {
            Log.error(e.toString());
        }
    }
    setQuotes(quoteDatas);
    return "quotes";
}
 

public static Boolean evalBoolean(String expression)
{
    if (expression == null)
    {
        return null;
    }
    if (UIComponentTag.isValueReference(expression))
    {
        FacesContext context = FacesContext.getCurrentInstance();
        Application app = context.getApplication();
        Object r = app.createValueBinding(expression).getValue(context);
        if (r == null)
        {
            return null;
        } else if (r instanceof Boolean)
        {
            return (Boolean) r;
        } else
        {
            return Boolean.valueOf(r.toString());
        }
    } else
    {
        return Boolean.valueOf(expression);
    }
}
 

@Override
public void handle() throws FacesException {
    final Iterator<ExceptionQueuedEvent> i = getUnhandledExceptionQueuedEvents().iterator();
    while (i.hasNext()) {
        ExceptionQueuedEvent event = i.next();
        ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource();

        // get the exception from context
        Throwable t = context.getException();

        FacesContext facesContext = FacesContext.getCurrentInstance();

        if (t instanceof ViewExpiredException) {
            try {

                String homeLocation = "/index.xhtml";
                facesContext.setViewRoot(facesContext.getApplication().getViewHandler().createView(facesContext, homeLocation));
                facesContext.getPartialViewContext().setRenderAll(true);
                String messageText = "Your session is expired and data is resetted.";
                FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR, messageText, messageText);
                facesContext.addMessage(null, message);
                facesContext.renderResponse();

            } finally {
                //remove it from queue
                i.remove();
            }
        }
    }
    //parent handle
    getWrapped().handle();
}
 

public void processAction(ActionEvent ae) throws AbortProcessingException
{
  FacesContext context = FacesContext.getCurrentInstance();

  String deleteId = this.lookupTemplateBean(context).getIdString();
  if(!deleteTemplate(deleteId))
  {
    // todo: define package specific RuntimeException
    throw new RuntimeException("Cannot delete template.");
  }
  // reset template list
  TemplateListener lis = new TemplateListener();
  lis.processAction(null); 
}
 

public static Integer evalInteger(String expression)
{
  if (expression == null)
  {
    return null;
  }
  if (UIComponentTag.isValueReference(expression))
  {
    FacesContext context = FacesContext.getCurrentInstance();
    Application app = context.getApplication();
    Object r = app.createValueBinding(expression).getValue(context);
    if (r == null)
    {
      return null;
    }
    else if (r instanceof Integer)
    {
      return (Integer) r;
    }
    else
    {
      return new Integer(r.toString());
    }
  }
  else
  {
    return new Integer(expression);
  }
}
 

public String handleEventSubmission() {

        VoyageNumber selectedVoyage = null;
        
        //Date completionTime = new SimpleDateFormat(ISO_8601_FORMAT).parse(completionDate);                                
        Date registrationTime = new Date();
        TrackingId trackingId = new TrackingId(trackId);
        UnLocode unLocode = new UnLocode(this.location);
        HandlingEvent.Type type = HandlingEvent.Type.valueOf(eventType);

        if (voyageNumber!= null) {  // Only Load & Unload could have a Voyage set
            selectedVoyage = new VoyageNumber(voyageNumber);
        }
        
        HandlingEventRegistrationAttempt attempt
                = new HandlingEventRegistrationAttempt(registrationTime, completionDate, trackingId, selectedVoyage, type, unLocode);
        
        applicationEvents.receivedHandlingEventRegistrationAttempt(attempt);

        voyageNumber = null;
        completionDate = null;
        unLocode = null;
        eventType = null;
        location = null;
        trackId = null;
        eventSubmitable = loadEventCondition = voyageSelectable = inputsOk = false; 

        FacesContext context = FacesContext.getCurrentInstance();
        context.addMessage(null, new FacesMessage("Event submitted", ""));

        return null;
    }
 

/**
 * Add the default datatables.net resource if and only if the user doesn't bring
 * their own copy, and if they didn't disallow it in the web.xml by setting the
 * context paramter net.bootsfaces.get_datatable_from_cdn to true.
 *
 * @param defaultFilename The URL of the file to be loaded
 * @param type            either "js" or "css"
 */
public static void addDatatablesResourceIfNecessary(String defaultFilename, String type) {
	boolean loadDatatables = shouldLibraryBeLoaded(P_GET_DATATABLE_FROM_CDN, true);
	// Do we have to add datatables.min.{css|js}, or are the resources already
	// there?
	FacesContext context = FacesContext.getCurrentInstance();
	UIViewRoot root = context.getViewRoot();

	String[] positions = { "head", "body", "form" };
	for (String position : positions) {
		if (loadDatatables) {
			List<UIComponent> availableResources = root.getComponentResources(context, position);
			for (UIComponent ava : availableResources) {
				if (ava.isRendered()) {
					String name = (String) ava.getAttributes().get("name");
					if (null != name) {
						name = name.toLowerCase();
						if (name.contains("datatables") && name.endsWith("." + type)) {
							loadDatatables = false;
							break;
						}
					}
				}
			}
		}
	}
	if (loadDatatables) {
		addResourceIfNecessary(defaultFilename);
	}
}
 

public static void setValueBinding(UIComponent component,
    String attributeName, String attributeValue)
{
  FacesContext context = FacesContext.getCurrentInstance();
  Application app = context.getApplication();
  ValueBinding vb = app.createValueBinding(attributeValue);
  component.setValueBinding(attributeName, vb);
}
 

private static ResourceBundle getBundle(Bundle bundle) {
	ResourceBundle result = null;
	try {
		result = CommonUtil.getBundle(WEB_ROOT_PACKAGE_NAME + "." + bundle.getVar(), Locale.ROOT);
	} catch (MissingResourceException e) {
	}
	if (result == null) {
		FacesContext context = FacesContext.getCurrentInstance();
		if (context != null) {
			result = context.getApplication().getResourceBundle(context, bundle.getVar());
		}
	}
	return result;
}
 

@SuppressWarnings("unchecked") // $NON-NLS-1$
public static Map<String,Object> getRequestScope() {
    FacesContext ctx = FacesContext.getCurrentInstance();
    if(ctx!=null) {
        return ctx.getExternalContext().getRequestMap();
    }
    return null;
}
 

public String register() {

        String trackingId = null;
        try {
            if (!originUnlocode.equals(destinationUnlocode)) {
                trackingId = bookingServiceFacade.bookNewCargo(
                        originUnlocode,
                        destinationUnlocode,
                        //new SimpleDateFormat(FORMAT).parse(arrivalDeadline));
                        //new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy").parse(arrivalDeadline)); // davidd
                        arrivalDeadline);

            } else {
                // TODO See if this can be injected.
                FacesContext context = FacesContext.getCurrentInstance();
                // UI now prevents from selecting same origin/destination
                FacesMessage message = new FacesMessage("Origin and destination cannot be the same.");
                message.setSeverity(FacesMessage.SEVERITY_ERROR);
                context.addMessage(null, message);
                return null;
            }
        } catch (Exception e) {
            throw new RuntimeException("Error parsing date", e); // todo, not parsing anymore
        }
        //return "show_original.xhtml?faces-redirect=true&trackingId=" + trackingId;
        return "/admin/dashboard.xhtml";
    }
 

/**
 * Reset all resource bundles
 */
public void resetBundles() {
    FacesContext fc = FacesContext.getCurrentInstance();
    Iterator<Locale> it = fc.getApplication().getSupportedLocales();
    while (it.hasNext()) {
        Locale locale = it.next();
        ResourceBundle bundle = getResourceBundle(locale);
        if (bundle instanceof DbMessages) {
            ((DbMessages) bundle).resetProperties();
        }
    }
}
 

/**
 * @return true if the browser of the current user is an internet explorer
 */
public boolean isIe() {
    if (ie != null) {
        return ie.booleanValue();
    }
    FacesContext context = FacesContext.getCurrentInstance();
    if (context == null) {
        return false;
    }
    Object obj = context.getExternalContext().getRequest();
    if (!(obj instanceof HttpServletRequest)) {
        return false;
    }
    HttpServletRequest request = (HttpServletRequest) obj;

    // The user-agent string contains information about which
    // browser is used to view the pages
    String useragent = request.getHeader(USER_AGENT_HEADER);
    if (useragent == null) {
        ie = Boolean.FALSE;
        return ie.booleanValue();
    }
    if (useragent.toLowerCase().contains("msie")) {
        ie = Boolean.TRUE;
        return ie.booleanValue();
    }
    // Check if browser is IE11
    if (useragent.toLowerCase().contains("trident")
            && useragent.toLowerCase().contains("rv:11")) {
        ie = Boolean.TRUE;
    } else {
        ie = Boolean.FALSE;
    }
    return ie.booleanValue();
}
 

/**
 * Verifies that the view locale is equal to the user's locale
 * 
 */
public static void verifyViewLocale() {
    FacesContext fc = FacesContext.getCurrentInstance();

    HttpServletRequest request = (HttpServletRequest) fc
            .getExternalContext().getRequest();
    HttpSession session = request.getSession();
    String localeString = null;
    if (session != null) {
        localeString = (String) session.getAttribute("loggedInUserLocale");
    }

    // if the view locale differs from the users locale change the view
    // locale
    Locale locale = fc.getViewRoot().getLocale();
    if (localeString != null && !locale.toString().equals(localeString)) {
        Iterator<Locale> it = fc.getApplication().getSupportedLocales();
        while (it.hasNext()) {
            locale = it.next();
            if (locale.toString().equals(localeString)) {
                fc.getViewRoot().setLocale(locale);
                return;
            }
        }
        // we use the default locale if the requested locale was not
        // found
        if (!fc.getViewRoot().getLocale()
                .equals(fc.getApplication().getDefaultLocale())) {
            fc.getViewRoot().setLocale(
                    fc.getApplication().getDefaultLocale());
        }
    }
}
 

public static void setValueBinding(UIComponent component,
  String attributeName,
  String attributeValue)
{
  FacesContext context = FacesContext.getCurrentInstance();
  Application app = context.getApplication();
  ValueBinding vb = app.createValueBinding(attributeValue);
  component.setValueBinding(attributeName, vb);
}
 

@Override
protected FacesContext getFacesContext() {
	return FacesContext.getCurrentInstance();
}
 

public List<IPickerEntry> loadEntries(Object[] ids, String[] attributeNames) {
    FacesContext context = FacesContext.getCurrentInstance();
    List<IPickerEntry> entries = new ArrayList<IPickerEntry>(ids.length);
    for(int i=0; i<ids.length; i++) {
        entries.add(null);
    }
    String labelSep = getLabelSeparator();
    if(StringUtil.isEmpty(labelSep)) {
        labelSep = null;
    }
    final boolean searchLabel = labelSep!=null; 
    int start = 0;
    int count = Integer.MAX_VALUE;
    String startKey = null;
    for(int i=0; i<ids.length; i++) {
        Object key = ids[i];
        List<ShadowedObject> _shadowedData = pushVar(context, start, count, key, startKey);
        try {
            Object values = getValueList();
            if(values!=null) {
                boolean caseInsensitive = isCaseInsensitive();
                for(Iterator<Object> it=getIterator(values); it.hasNext(); ) {
                    Object o = it.next();
                    if(o!=null) {
                        IPickerEntry e = getEntry(o,labelSep);
                        if(e!=null) {
                            //String value = toString(searchLabel?e.getLabel():e.getValue());
                            String value = toString(e.getValue());
                            if(caseInsensitive) {
                                if(StringUtil.equalsIgnoreCase(value,ids[i].toString())) {
                                    entries.set(i,e);
                                    break;
                                }
                            } else {
                                if(StringUtil.equals(value,ids[i])) {
                                    entries.set(i,e);
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        } finally {
            popVar(context,_shadowedData);
        }
    }
    // Sort the entries
    (new QuickSort.JavaList(entries) {
        @Override
        public int compare(Object o1, Object o2) {
            if(o1==null) {
                if(o2==null) return 0;
                return -1;
            }
            if(o2==null) {
                return 1;
            }
            String s1 = SimpleValuePickerData.toString(searchLabel ? ((IPickerEntry)o1).getLabel() : ((IPickerEntry)o1).getValue());
            String s2 = SimpleValuePickerData.toString(searchLabel ? ((IPickerEntry)o2).getLabel() : ((IPickerEntry)o2).getValue());
            return StringUtil.compareToIgnoreCase(s1, s2);
        }
    }).sort();
    return entries;
}
 

protected FacesContext getFacesContext() {
    return FacesContext.getCurrentInstance();
}
 

@Produces
@RequestScoped
public FacesContext produceFacesContext() {
    return FacesContext.getCurrentInstance();
}