MOA-IDSPSS Release 1.5.1.tags/1.5.1

git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/tags/1.5.1@1271 d688527b-c9ab-4aba-bd8d-4036d912da1d

1 files changed, 90 insertions, 0 deletions

diff --git a/common/src/main/java/at/gv/egovernment/moa/util/ResourceBundleChain.java b/common/src/main/java/at/gv/egovernment/moa/util/ResourceBundleChain.java
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+/*
+ * Copyright 2003 Federal Chancellery Austria
+ * MOA-ID has been developed in a cooperation between BRZ, the Federal
+ * Chancellery Austria - ICT staff unit, and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+
+
+package at.gv.egovernment.moa.util;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.MissingResourceException;
+import java.util.ResourceBundle;
+
+/**
+ * A class to chain <code>ResourceBundle</code>s.
+ * 
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public class ResourceBundleChain {
+  /** Error message indicating the resource is not available. */
+  private static final String ERROR_MISSING_RESOURCE = "Missing resource";
+  /** The <code>ResourceBundle</code>s contained in this chain. */
+  private List resourceBundles = new ArrayList();
+
+  /**
+   * Add a <code>ResourceBundle</code> to the chain.
+   * 
+   * @param resourceBundle The <code>ResourceBundle</code> to add.
+   */
+  public void addResourceBundle(ResourceBundle resourceBundle) {
+    resourceBundles.add(resourceBundle);
+  }
+
+  /**
+   * Return the value of the resource.
+   * 
+   * @param key The key to access the <code>String</code> resource.
+   * @return The resource value. All the registered <code>ResourceBundle</code>s
+   * are searched in the order in which they have previously been added to this
+   * <code>ResourceBundleChain</code>.
+   * @throws MissingResourceException The resource coult not be found in any of
+   * the bundles.
+   */
+  public String getString(String key) throws MissingResourceException {
+    MissingResourceException lastException = null;
+    Iterator iter;
+
+    // handle case where no resource bundles have been added
+    if (resourceBundles.size() == 0) {
+      throw new MissingResourceException(
+        ERROR_MISSING_RESOURCE,
+        this.getClass().getName(),
+        key);
+    }
+
+    // try to find the resource in one of the bundles; if it cannot be found,
+    // return the exception thrown by the last bundle in the list
+    for (iter = resourceBundles.iterator(); iter.hasNext();) {
+      ResourceBundle resourceBundle = (ResourceBundle) iter.next();
+      try {
+        String value = resourceBundle.getString(key);
+        return value;
+      } catch (MissingResourceException e) {
+        lastException = e;
+      }
+    }
+    throw lastException;
+  }
+
+}