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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [tools/] [gnu/] [classpath/] [tools/] [jarsigner/] [Messages.java] - Blame information for rev 779

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1 779 jeremybenn
/* Messages.java -- I18N related helper class
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 Copyright (C) 2006, 2007 Free Software Foundation, Inc.
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 This file is part of GNU Classpath.
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 GNU Classpath is free software; you can redistribute it and/or modify
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 it under the terms of the GNU General Public License as published by
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 the Free Software Foundation; either version 2, or (at your option)
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 any later version.
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 GNU Classpath is distributed in the hope that it will be useful, but
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 WITHOUT ANY WARRANTY; without even the implied warranty of
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 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 General Public License for more details.
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 You should have received a copy of the GNU General Public License
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 along with GNU Classpath; see the file COPYING.  If not, write to the
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 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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 02110-1301 USA.
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 Linking this library statically or dynamically with other modules is
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 making a combined work based on this library.  Thus, the terms and
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 conditions of the GNU General Public License cover the whole
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 combination.
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 As a special exception, the copyright holders of this library give you
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 permission to link this library with independent modules to produce an
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 executable, regardless of the license terms of these independent
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 modules, and to copy and distribute the resulting executable under
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 terms of your choice, provided that you also meet, for each linked
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 independent module, the terms and conditions of the license of that
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 module.  An independent module is a module which is not derived from
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 or based on this library.  If you modify this library, you may extend
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 this exception to your version of the library, but you are not
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 obligated to do so.  If you do not wish to do so, delete this
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 exception statement from your version. */
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package gnu.classpath.tools.jarsigner;
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import gnu.classpath.Configuration;
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import java.text.MessageFormat;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.MissingResourceException;
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import java.util.ResourceBundle;
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import java.util.logging.Logger;
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/**
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 * An initially generated Eclipse helper class to ease the use of localized
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 * messages.
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 * <p>
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 * Enriched to handle localized message formats.
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 */
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class Messages
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{
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  private static final Logger log = Logger.getLogger(Messages.class.getName());
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  private static final String BUNDLE_NAME = "gnu.classpath.tools.jarsigner.messages";
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  private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(BUNDLE_NAME);
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  private static final Map<String, MessageFormat> CACHED_FORMATS =
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      new HashMap<String, MessageFormat>(5);
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  private Messages()
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  {
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    super();
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  }
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  public static String getString(String key)
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  {
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    try
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      {
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        return RESOURCE_BUNDLE.getString(key);
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      }
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    catch (MissingResourceException e)
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      {
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        return constructMessage(key, null);
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      }
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  }
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  public static String getFormattedString(String key, Object args)
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  {
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    MessageFormat mf = CACHED_FORMATS.get(key);
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    if (mf == null)
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      {
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        String formatString = getString(key);
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        if (formatString.startsWith("!"))
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          return constructMessage(key, args);
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        mf = new MessageFormat(formatString);
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        CACHED_FORMATS.put(key, mf);
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      }
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    // if the argument is not an array, then build one consisting of the
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    // sole argument before passing it to the format() method
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    try
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      {
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        if (args instanceof Object[])
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          return mf.format(args);
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        return mf.format(new Object[] { args });
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      }
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    catch (IllegalArgumentException x)
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      {
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        if (Configuration.DEBUG)
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          log.fine("Exception while rendering a message format keyed by ["
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                   + key + "]: " + mf.toPattern());
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        return constructMessage(mf.toPattern(), args);
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      }
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  }
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  private static final String constructMessage(String m, Object args)
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  {
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    if (args == null)
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      return '!' + m + '!';
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    return '!' + m + '!' + String.valueOf(args) + '!';
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  }
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}

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