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

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

public static boolean replaceMessageInListIfExisting(String oldKey,
        Object[] oldParams, String newKey, Object[] newParams) {

    FacesContext fc = FacesContext.getCurrentInstance();
    String oldText = JSFUtils.getText(oldKey, oldParams);
    String newText = JSFUtils.getText(newKey, newParams);

    for (Iterator<FacesMessage> i = fc.getMessages(); i.hasNext();) {
        FacesMessage fm = i.next();
        if (fm.getDetail().equals(oldText)) {
            fm.setDetail(newText);
            fm.setSummary(newText);
            return true;
        }
    }
    return false;
}
 

/**
 * Save current messages for later restoration.
 * 
 * @param context
 *        The current faces context.
 */
public static void saveMessages(FacesContext context)
{
	if (context == null) return;

	// look in the session
	HttpSession s = (HttpSession) context.getExternalContext().getSession(false);
	if (s == null) return;

	// collect the messages from the context for restoration on the next rendering
	List msgs = new Vector();
	for (Iterator iMessages = context.getMessages(); iMessages.hasNext();)
	{
		FacesMessage msg = (FacesMessage) iMessages.next();
		msgs.add(msg);
	}

	// store the messages for this mode to find
	s.setAttribute(ATTR_MSGS, msgs);
}
 

/**
 * Save current messages for later restoration.
 * 
 * @param context
 *        The current faces context.
 */
public static void saveMessages(FacesContext context)
{
	if (context == null) return;

	// look in the session
	HttpSession s = (HttpSession) context.getExternalContext().getSession(false);
	if (s == null) return;

	// collect the messages from the context for restoration on the next rendering
	List msgs = new Vector();
	for (Iterator iMessages = context.getMessages(); iMessages.hasNext();)
	{
		FacesMessage msg = (FacesMessage) iMessages.next();
		msgs.add(msg);
	}

	// store the messages for this mode to find
	s.setAttribute(ATTR_MSGS, msgs);
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

/**
 * Remove the messages that are not associated with any particular component
 * from the faces context and store them to the user's session.
 *
 * @return the number of removed messages.
 */
private int saveMessages(FacesContext facesContext) {
	// remove messages from the context
	List<FacesMessage> messages = new ArrayList<FacesMessage>();
	for(Iterator<FacesMessage> i = facesContext.getMessages(null); i.hasNext(); ) {
		messages.add(i.next());
		i.remove();
	}
	// store them in the session
	if(messages.size() == 0) {
		return 0;
	}
	Map<String, Object> sessionMap = facesContext.getExternalContext().getSessionMap();
	// if there already are messages
	@SuppressWarnings("unchecked")
	List<FacesMessage> existingMessages = (List<FacesMessage>) sessionMap.get(sessionToken);
	if(existingMessages != null) {
		existingMessages.addAll(messages);
	}
	else {
		sessionMap.put(sessionToken, messages); // if these are the first messages
	}

	return messages.size();
}
 

private boolean containsMessageInList(FacesContext fc, String msg) {
    for (Iterator<FacesMessage> i = fc.getMessages(); i.hasNext();) {
        if (i.next().getDetail().contains(msg)) {
            return true;
        }
    }
    return false;
}
 

public static boolean hasWarnings(FacesContext fc) {
    for (Iterator<FacesMessage> i = fc.getMessages(); i.hasNext();) {
        FacesMessage m = i.next();
        if (FacesMessage.SEVERITY_WARN == m.getSeverity()) {
            return true;
        }
    }
    return false;
}
 

@Override
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
    if (!component.isRendered()){
        return;
    }
    
    Growl uiGrowl = (Growl) component;
    ResponseWriter writer = facesContext.getResponseWriter();
    
    String clientId = uiGrowl.getClientId(facesContext);
    
    // get the for value
    String forValue = uiGrowl.getFor();
   
    Iterator<FacesMessage> allMessages = null;
    if ( uiGrowl.isGlobalOnly() ) {
    	allMessages = facesContext.getMessages(null); 
    } else if(forValue != null && forValue.length() > 0) {
    	forValue = ExpressionResolver.getComponentIDs(facesContext, uiGrowl, forValue);
    	allMessages = facesContext.getMessages(forValue);
    } else {
    	allMessages = facesContext.getMessages();
    }
    
    writer.startElement("script", uiGrowl);
    writer.writeAttribute("id", clientId, "id");
    writer.writeText("$(function() { ", null);
    
    while (allMessages.hasNext()) {
        FacesMessage message = allMessages.next();
        if (!shouldBeRendered(message, uiGrowl)){
            continue;
        }
        
        encodeSeverityMessage(facesContext, uiGrowl, message);
        message.rendered();
    }
    writer.writeText("});", null);
    writer.endElement("script");
}
 

public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
	// Note our complete disregard for class cast and null exceptions....
	UIMessage uiMessage = (UIMessage)component;
	String clientId = uiMessage.findComponent(uiMessage.getFor()).getClientId(context);

	Iterator iter = context.getMessages(clientId);
	if (iter.hasNext()) {
		// Just do the first one.
		FacesMessage message = (FacesMessage)iter.next();
		renderMessage(context, component, message);
	}
}
 

/**
 * Clear the messages component on the user screen
 *
 * @param context the view context to be used
 */
public static void clearMessages(FacesContext context) {

    final Iterator<FacesMessage> messages = context.getMessages();

    while (messages.hasNext()) {
        messages.next();
        messages.remove();
    }
}
 

/**
 * Clear the messages component on the user screen
 *
 * @param context the view context to be used
 */
public static void clearMessages(FacesContext context) {

    final Iterator<FacesMessage> messages = context.getMessages();

    while (messages.hasNext()) {
        messages.next();
        messages.remove();
    }
}
 

/**
 * Clear the messages component on the user screen
 *
 * @param context the view context to be used
 */
public static void clearMessages(FacesContext context) {

    final Iterator<FacesMessage> messages = context.getMessages();

    while (messages.hasNext()) {
        messages.next();
        messages.remove();
    }
}
 

@SuppressWarnings("unchecked")//$NON-NLS-1$
protected static Iterator<FacesMessage> getMessages(FacesContext context) {
    return context.getMessages();
}
 

@SuppressWarnings("unchecked")//$NON-NLS-1$
protected static Iterator<FacesMessage> getMessages(FacesContext context, String clientId) {
    return context.getMessages(clientId);
}