ingo@9: package de.intevation.flys.client.client;
ingo@9: 
ingo@229: import com.google.gwt.i18n.client.LocaleInfo;
ingo@229: 
ingo@9: import com.google.gwt.xml.client.Document;
ingo@9: import com.google.gwt.xml.client.Node;
ingo@9: 
ingo@9: 
ingo@9: /**
ingo@9:  * A class that is used to handle the global configuration of this client. You
ingo@9:  * can retrieve an instance of this class using the <code>getInstance</code>
ingo@9:  * methods. <b>NOTE:</b> the configuration is initialized using {@link
ingo@9:  * getInstance(Document)} the first time.
ingo@9:  *
ingo@9:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@9:  */
ingo@9: public class Config {
ingo@9: 
ingo@9:     /** The instance of the configuration. */
ingo@9:     protected static Config INSTANCE;
ingo@9: 
ingo@9:     /** The xml document that contains the configuration options.*/
ingo@9:     protected Document config;
ingo@9: 
ingo@9: 
ingo@9:     /**
ingo@9:      * Get an instance by using {@link getInstance(Document)} or {@link
ingo@9:      * getInstance()}.
ingo@9:      */
ingo@9:     private Config(Document config) {
ingo@9:         this.config = config;
ingo@9:     }
ingo@9: 
ingo@9: 
ingo@9:     /**
ingo@9:      * Returns an instance of this class and initializes the configuration of
ingo@9:      * this has not been done so far.
ingo@9:      *
ingo@9:      * @param config The client configuration.
ingo@9:      *
ingo@9:      * @return an instance of this Config class.
ingo@9:      */
ingo@9:     public static Config getInstance(Document config) {
ingo@9:         if (INSTANCE == null) {
ingo@9:             INSTANCE = new Config(config);
ingo@9:         }
ingo@9: 
ingo@9:         return INSTANCE;
ingo@9:     }
ingo@9: 
ingo@9: 
ingo@9:     /**
ingo@9:      * Returns an instance of this class. If it has not been initialized with a
ingo@9:      * valid configuration, null is returned.
ingo@9:      *
ingo@9:      * @return an instance of this class or null, if the Config has not been
ingo@9:      * initialized using {@link getInstance(Document)} so far.
ingo@9:      */
ingo@9:     public static Config getInstance() {
ingo@9:         return INSTANCE;
ingo@9:     }
ingo@9: 
ingo@9: 
ingo@9:     /**
ingo@9:      * Returns the URL of the artifact server.
ingo@9:      *
ingo@9:      * @return the artifact server url.
ingo@9:      */
ingo@9:     public String getServerUrl() {
ingo@9:         Node server = config.getElementsByTagName("server").item(0);
ingo@9:         return server.getFirstChild().getNodeValue();
ingo@9:     }
ingo@229: 
ingo@229: 
ingo@229:     /**
ingo@229:      * Returns the name of the current locale.
ingo@229:      *
ingo@229:      * @return the name of the current locale.
ingo@229:      */
ingo@229:     public String getLocale() {
ingo@229:         return LocaleInfo.getCurrentLocale().getLocaleName();
ingo@229:     }
ingo@9: }
ingo@9: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :