First draft for a internationalization demo application

[lgpl/argeo-commons.git] / demo / plugins / org.argeo.demo.i18n / src / main / java / org / argeo / demo / i18n / I18nDemoPlugin.java

diff --git a/demo/plugins/org.argeo.demo.i18n/src/main/java/org/argeo/demo/i18n/I18nDemoPlugin.java b/demo/plugins/org.argeo.demo.i18n/src/main/java/org/argeo/demo/i18n/I18nDemoPlugin.java
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index 0000000..a1e53a7
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+++ b/demo/plugins/org.argeo.demo.i18n/src/main/java/org/argeo/demo/i18n/I18nDemoPlugin.java
@@ -0,0 +1,89 @@
+package org.argeo.demo.i18n;
+
+import java.util.ResourceBundle;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.ui.plugin.AbstractUIPlugin;
+import org.osgi.framework.BundleContext;
+
+/**
+ * The activator class controls the plug-in life cycle
+ */
+public class I18nDemoPlugin extends AbstractUIPlugin {
+       private final static Log log = LogFactory.getLog(I18nDemoPlugin.class);
+       private ResourceBundle messages;
+
+       // The plug-in ID
+       public static final String ID = "org.argeo.demo.i18n"; //$NON-NLS-1$
+
+       // The shared instance
+       private static I18nDemoPlugin plugin;
+
+       /**
+        * The constructor
+        */
+       public I18nDemoPlugin() {
+       }
+
+       /*
+        * (non-Javadoc)
+        * 
+        * @see
+        * org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
+        * )
+        */
+       public void start(BundleContext context) throws Exception {
+               super.start(context);
+               plugin = this;
+               messages = ResourceBundle.getBundle("org.argeo.demo.i18n.messages");
+       }
+
+       /*
+        * (non-Javadoc)
+        * 
+        * @see
+        * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext
+        * )
+        */
+       public void stop(BundleContext context) throws Exception {
+               plugin = null;
+               super.stop(context);
+       }
+
+       /**
+        * Returns the shared instance
+        * 
+        * @return the shared instance
+        */
+       public static I18nDemoPlugin getDefault() {
+               return plugin;
+       }
+
+       public static ImageDescriptor getImageDescriptor(String path) {
+               return imageDescriptorFromPlugin(ID, path);
+       }
+
+       /** Returns the internationalized label for the given key */
+       public static String getMessage(String key) {
+               try {
+                       return getDefault().messages.getString(key);
+               } catch (NullPointerException npe) {
+                       log.warn(key + " not found.");
+                       return key;
+               }
+       }
+
+       /**
+        * Gives access to the internationalization message bundle. Returns null in
+        * case the ClientUiPlugin is not started (for JUnit tests, by instance)
+        */
+       public static ResourceBundle getMessagesBundle() {
+               if (getDefault() != null)
+                       // To avoid NPE
+                       return getDefault().messages;
+               else
+                       return null;
+       }
+}
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