/*
- * Copyright (C) 2017 Roland Häder
+ * Copyright (C) 2017, 2018 Free Software Foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*/
package org.mxchange.jcoreee.bean.faces;
+import java.io.Serializable;
+import java.math.BigDecimal;
import java.security.Principal;
import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.List;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
-import org.mxchange.jcoreee.bean.BaseBean;
/**
* An abstract bean for faces (web) projects.
* <p>
* @author Roland Häder<roland@mxchange.org>
*/
-public abstract class BaseFacesBean extends BaseBean {
+public abstract class BaseFacesBean implements Serializable {
+
+ /**
+ * Loaded resource bundles ("cached")
+ */
+ private static final List<ResourceBundle> RESOURCE_BUNDLES;
/**
* Serial number
*/
private static final long serialVersionUID = 18_605_498_672_261L;
+ /**
+ * Static initializer
+ */
+ static {
+ // Init resource bundle list
+ RESOURCE_BUNDLES = new ArrayList<>(3);
+ }
+
+ /**
+ * Removes all bundles from web application. Typically you want to invoke
+ * this method in a ServletContextListener implementation on the
+ * contextDestroyed() method.
+ */
+ public static void removeBundles () {
+ // Clear bundles
+ RESOURCE_BUNDLES.clear();
+ }
+
+ /**
+ * Getter for resource bundle list
+ * <p>
+ * @return Resource bundle list
+ */
+ @SuppressWarnings ("ReturnOfCollectionOrArrayField")
+ protected static List<ResourceBundle> getBundles () {
+ return RESOURCE_BUNDLES;
+ }
+
/**
* Protected constructor
*/
protected BaseFacesBean () {
- // Call super constructor
- super();
+ }
+
+ /**
+ * A filter for prices
+ * <p>
+ * @param value Actual value to check
+ * @param filter Filter value to check against {@code value}
+ * @param locale Locale
+ * <p>
+ * @return Whether price ({@code value}) is at least {@code filter}
+ *
+ * @see https://www.primefaces.org/showcase/ui/data/datatable/filter.xhtml
+ */
+ @SuppressWarnings ("unchecked")
+ public boolean filterByPrice (final Object value, final Object filter, final Locale locale) {
+ // Get trimmed string or NULL
+ final String filterText = (filter == null) ? null : filter.toString().trim();
+
+ // Is null or empty?
+ if (filterText == null || filterText.isEmpty()) {
+ // Then return TRUE
+ return true;
+ }
+
+ // Is value NULL or not castable?
+ if (value == null) {
+ // Return FALSE
+ return false;
+ } else if (!(value instanceof Comparable)) {
+ // Not castable
+ throw new ClassCastException("value is not instance of Comparable");
+ }
+
+ // Do the cast and compare
+ return ((Comparable<BigDecimal>) value).compareTo(BigDecimal.valueOf(Double.valueOf(filterText))) >= 0;
}
/**
*/
protected String determinePrincipalName () {
// Get principal
- Principal userPrincipal = FacesContext.getCurrentInstance().getExternalContext().getUserPrincipal();
+ final Principal userPrincipal = FacesContext.getCurrentInstance().getExternalContext().getUserPrincipal();
// Init with null
String principalName = null;
* @param parameterKey Property key
* <p>
* @return Property value
- * <p>
- * @throws NullPointerException If given key is not found
- * @throws NumberFormatException If no number is given in context parameter
*/
protected int getIntegerContextParameter (final String parameterKey) throws NullPointerException, NumberFormatException {
// Get context parameter
- Integer contextValue = Integer.parseInt(this.getStringContextParameter(parameterKey));
+ final Integer contextValue = Integer.parseInt(this.getStringContextParameter(parameterKey));
+
// Return it
return contextValue;
}
+ /**
+ * Returns a message based on given i18nKey or puts it into three question
+ * marks each side when not found.
+ * <p>
+ * @param i18nKey I18n key
+ * <p>
+ * @return Localized message
+ * <p>
+ * @throws NullPointerException If the parameter is null
+ * @throws IllegalArgumentException If the parameter is empty
+ */
+ protected String getMessageFromBundle (final String i18nKey) {
+ // Validate parameter
+ if (null == i18nKey) {
+ // Throw NPE
+ throw new NullPointerException("i18nKey is null"); //NOI18N
+ } else if (i18nKey.isEmpty()) {
+ // Is empty
+ throw new IllegalArgumentException("i18nKey is empty"); //NOI18N
+ }
+
+ // Get current locale
+ final Locale locale = FacesContext.getCurrentInstance().getViewRoot().getLocale();
+
+ // Get bundle bundle
+ this.loadResourceBundles(locale);
+
+ // Default is i18nKey
+ String message = MessageFormat.format("???{0}???", i18nKey); //NOI18N
+
+ // Loop through all
+ for (final ResourceBundle bundle : getBundles()) {
+ // Found message?
+ // Try it
+ try {
+ // Get message
+ message = bundle.getString(i18nKey);
+ break;
+ } catch (final MissingResourceException ex) {
+ // Did not find it, ignored
+ }
+ }
+
+ // Return it
+ return message;
+ }
+
/**
* Returns given property key or throws an exception if not found.
* <p>
*/
protected String getStringContextParameter (final String parameterKey) throws NullPointerException {
// Get context parameter
- String contextValue = FacesContext.getCurrentInstance().getExternalContext().getInitParameter(parameterKey);
+ final String contextValue = FacesContext.getCurrentInstance().getExternalContext().getInitParameter(parameterKey);
+
// Is it null?
if (null == contextValue) {
// Throw NPE
throw new NullPointerException(MessageFormat.format("parameterKey={0} is not set.", parameterKey)); //NOI18N
}
+
// Return it
return contextValue;
}
// Is empty
throw new IllegalArgumentException("controllerName is empty"); //NOI18N
}
+
// Try to get context parameter
- String contextParameter = this.getStringContextParameter(String.format("is_debug_%s_enabled", controllerName)); //NOI18N
+ final String contextParameter = this.getStringContextParameter(String.format("is_debug_%s_enabled", controllerName)); //NOI18N
+
// Is it set and true?
- boolean isEnabled = Boolean.parseBoolean(contextParameter) == Boolean.TRUE;
+ final boolean isEnabled = Boolean.parseBoolean(contextParameter) == Boolean.TRUE;
+
// Return it
return isEnabled;
}
/**
- * Loads resource bundle for given locale. This must be implemented per
+ * Loads resource bundles for given locale. This must be implemented per
* project so all projects can still customize their methods. Calling
* ResourceBundleloadBundle() in this class means that also the bundle files
* must be present here.
* <p>
* @param locale Locale from e.g. FacesContext
- * <p>
- * @return Initialized and loaded resource bundle
*/
- protected abstract ResourceBundle loadResourceBundle (final Locale locale);
+ protected abstract void loadResourceBundles (final Locale locale);
/**
* Shows a faces message for given causing exception. The message from the
// Is empty
throw new IllegalArgumentException("i18nKey is null"); //NOI18N
}
- // Get current locale
- Locale locale = FacesContext.getCurrentInstance().getViewRoot().getLocale();
- // Get bundle bundle
- ResourceBundle bundle = this.loadResourceBundle(locale);
- // Default is i18nKey
- String message = MessageFormat.format("!{0}!", i18nKey); //NOI18N
- // Try it
- try {
- // Get message
- message = bundle.getString(i18nKey);
- } catch (final MissingResourceException ex) {
- // Did not find it, ignored
- }
+
+ // Get message from bundle
+ final String message = this.getMessageFromBundle(i18nKey);
+
// Get context and add message
FacesContext.getCurrentInstance().addMessage(clientId, new FacesMessage(message));
}
projects / jcoreee.git / blobdiff