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author | mcentner <mcentner@d688527b-c9ab-4aba-bd8d-4036d912da1d> | 2007-08-08 07:25:32 +0000 |
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committer | mcentner <mcentner@d688527b-c9ab-4aba-bd8d-4036d912da1d> | 2007-08-08 07:25:32 +0000 |
commit | 43e57a42832ea8b4ceb0317f3c9028a4174ffa7b (patch) | |
tree | f5ed9074b8d7b89b2dd5b22d326f63be103e7551 /common/src/main/java/at/gv/egovernment/moa/util/ResourceBundleChain.java | |
parent | 10889e9dea2cc2f70b475e6ff7af37fdba1621d9 (diff) | |
download | moa-id-spss-43e57a42832ea8b4ceb0317f3c9028a4174ffa7b.tar.gz moa-id-spss-43e57a42832ea8b4ceb0317f3c9028a4174ffa7b.tar.bz2 moa-id-spss-43e57a42832ea8b4ceb0317f3c9028a4174ffa7b.zip |
Adapted project directory structure to suit the new maven based build process.
git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@909 d688527b-c9ab-4aba-bd8d-4036d912da1d
Diffstat (limited to 'common/src/main/java/at/gv/egovernment/moa/util/ResourceBundleChain.java')
-rw-r--r-- | common/src/main/java/at/gv/egovernment/moa/util/ResourceBundleChain.java | 66 |
1 files changed, 66 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 new file mode 100644 index 000000000..90b28548a --- /dev/null +++ b/common/src/main/java/at/gv/egovernment/moa/util/ResourceBundleChain.java @@ -0,0 +1,66 @@ +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; + } + +} |