package org.apache.maven.scm.provider.clearcase.util;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import java.util.ResourceBundle;
  
  import org.apache.maven.scm.providers.clearcase.settings.Settings;
  import org.apache.maven.scm.providers.clearcase.settings.io.xpp3.ClearcaseXpp3Reader;
  import org.codehaus.plexus.util.ReaderFactory;
  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
  
  /**
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   *
   */
  public final class ClearCaseUtil
  {
  
      protected static final String CLEARCASE_SETTINGS_FILENAME = "clearcase-settings.xml";
  
      public static final File DEFAULT_SETTINGS_DIRECTORY = new File( System.getProperty( "user.home" ), ".scm" );
  
      private static File settingsDirectory = DEFAULT_SETTINGS_DIRECTORY;
  
      private static final String RESOURCE_FILENAME = "org.apache.maven.scm.provider.clearcase.command.clearcase";
  
      private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle( RESOURCE_FILENAME );
  
      private static Settings settings;
  
      private ClearCaseUtil()
      {
      }
  
      public static String getLocalizedResource( String key )
      {
          return RESOURCE_BUNDLE.getString( key );
      }
  
      public static Settings getSettings() 
      {
      	if ( settings == null )
      	{
      		settings = readSettings();
      	}
      	return settings;
      }
      
      public static Settings readSettings() 
      {
          File settingsFile = new File( settingsDirectory, CLEARCASE_SETTINGS_FILENAME );
  
          if ( !settingsFile.exists() )
          {
              File scmGlobalDir = new File( System.getProperty( "maven.home" ), "conf" );
              settingsFile = new File( scmGlobalDir, CLEARCASE_SETTINGS_FILENAME );
          }
  
          if ( settingsFile.exists() )
          {
              ClearcaseXpp3Reader reader = new ClearcaseXpp3Reader();
              try
              {
                  return reader.read( ReaderFactory.newXmlReader( settingsFile ) );
              }
              catch ( FileNotFoundException e )
              {
                  // nop
              }
              catch ( IOException e )
              {
                  // nop
              }
              catch ( XmlPullParserException e )
              {
                  String message = settingsFile.getAbsolutePath() + " isn't well formed. SKIPPED." + e.getMessage();
  
                  System.out.println( message );
              }
         }
 
         return new Settings();
     }
 
     public static void setSettingsDirectory( File directory )
     {
         settingsDirectory = directory;
         settings = readSettings();
     }
 }