1 files changed, 78 insertions, 0 deletions
diff --git a/common/src/main/java/at/gv/egovernment/moa/util/MessageProvider.java b/common/src/main/java/at/gv/egovernment/moa/util/MessageProvider.java
new file mode 100644
index 000000000..dde220a6e
--- /dev/null
+++ b/common/src/main/java/at/gv/egovernment/moa/util/MessageProvider.java
@@ -0,0 +1,78 @@
+/*
+* Copyright 2003 Federal Chancellery Austria
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egovernment.moa.util;
+
+import java.util.Locale;
+
+/**
+ * A singleton wrapper around a <code>Message</code> object.
+ * 
+ * Provides the messages used in the common project.
+ * 
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public class MessageProvider {
+  /** The location of the default message resources. */
+  private static final String[] DEFAULT_MESSAGE_RESOURCES =
+    { "resources/properties/common_messages" };
+  /** The locale of the default message resources. */
+  private static final Locale[] DEFAULT_MESSAGE_LOCALES =
+    new Locale[] { new Locale("de", "AT") };
+  /** The single instance of this class. */
+  private static MessageProvider instance;
+  
+  /** The messages provided by this <code>MessageProvider</code>. */
+  private Messages messages;
+  
+  /**
+   * Return the single instance of the <code>MessageProvider</code>.
+   * 
+   * Intialilizes the <code>MessageProvider</code> with the default message
+   * locations: <code>/resources/properties/common_messages</code>.
+   * 
+   * @return The single <code>MessageProvider</code>.
+   */
+  public static synchronized MessageProvider getInstance() {
+    if (instance == null) {
+      instance =
+        new MessageProvider(DEFAULT_MESSAGE_RESOURCES, DEFAULT_MESSAGE_LOCALES);
+    }
+    return instance;
+  }
+
+  /**
+   * Create a <code>MessageProvider</code>.
+   * 
+   * @param resourceNames The names of the resources containing the messages.
+   * @param locales The corresponding locales.
+   */
+  protected MessageProvider(String[] resourceNames, Locale[] locales) {
+    this.messages = new Messages(resourceNames, locales);
+  }
+
+  /**
+   * Get the message corresponding to a given message ID.
+   *
+   * @param messageId The ID of the message.
+   * @param parameters The parameters to fill in into the message arguments.
+   * @return The formatted message. 
+   */
+  public String getMessage(String messageId, Object[] parameters) {
+    return messages.getMessage(messageId, parameters);
+  }
+
+}