org.richfaces.validator.MessageFactory Maven / Gradle / Ivy
/**
*
*/
package org.richfaces.validator;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
/**
* @author asmirnov
*
*/
public final class MessageFactory {
private MessageFactory() {
}
public static FacesMessage createMessage(FacesContext context, String messageId) {
Locale locale = getCurrentLocale(context);
String messageBundle = context.getApplication().getMessageBundle();
FacesMessage message;
try {
if (null != messageBundle) {
try {
message = getMessageFromBundle(locale, messageBundle, messageId);
} catch (MissingResourceException e) {
message = getMessageFromBundle(locale, FacesMessage.FACES_MESSAGES, messageId);
}
} else {
message = getMessageFromBundle(locale, FacesMessage.FACES_MESSAGES, messageId);
}
} catch (MissingResourceException e) {
// No bundles at all, fall back message.
return new FacesMessage("conversion error");
}
return message;
}
private static FacesMessage getMessageFromBundle(Locale locale, String messageBundle, String messageId)
throws MissingResourceException {
ResourceBundle bundle = ResourceBundle.getBundle(messageBundle, locale, getCurrentLoader(messageId));
String summary = bundle.getString(messageId);
String detail;
try {
detail = bundle.getString(messageId + "_detail");
} catch (MissingResourceException e) {
return new FacesMessage(summary);
}
return new FacesMessage(summary, detail);
}
public static Locale getCurrentLocale(FacesContext context) {
UIViewRoot viewRoot = context.getViewRoot();
Locale locale;
if (null == viewRoot) {
locale = Locale.getDefault();
} else {
locale = viewRoot.getLocale();
}
return locale;
}
private static ClassLoader getCurrentLoader(Object fallbackClass) {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (loader == null) {
loader = fallbackClass.getClass().getClassLoader();
}
return loader;
}
}