MessagesBase.java

/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * Copyright 2005 - 2008 Pentaho Corporation.  All rights reserved.
 *
 * @created Jul 19, 2005 
 * @author James Dixon
 * 
 */
package org.pentaho.platform.util.messages;

import java.util.Collections;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

public class MessagesBase {

  private final Map<Locale,ResourceBundle> locales = Collections.synchronizedMap(new HashMap<Locale,ResourceBundle>());
  private String bundleName;
  
  public MessagesBase(String bundleName) {
    this.bundleName = bundleName;
  }
  
  private ResourceBundle getBundle() {
    Locale locale = LocaleHelper.getLocale();
    ResourceBundle bundle = locales.get(locale);
    if (bundle == null) {
      bundle = ResourceBundle.getBundle(bundleName, locale);
      locales.put(locale, bundle);
    }
    return bundle;
  }

  public String getEncodedString(final String rawValue) {
    if (rawValue == null) {
      return (""); //$NON-NLS-1$
    }

    StringBuffer value = new StringBuffer();
    for (int n = 0; n < rawValue.length(); n++) {
      int charValue = rawValue.charAt(n);
      if (charValue >= 0x80) {
        value.append("&#x"); //$NON-NLS-1$
        value.append(Integer.toString(charValue, 0x10));
        value.append(";"); //$NON-NLS-1$
      } else {
        value.append((char) charValue);
      }
    }
    return value.toString();

  }

  public String getXslString(final String key) {
    String rawValue = getString(key);
    return getEncodedString(rawValue);
  }

  public String getString(final String key) {
    try {
      return getBundle().getString(key);
    } catch (MissingResourceException e) {
      return '!' + key + '!';
    }
  }

  public String getString(final String key, final String... params) {
    return MessageUtil.getString(getBundle(), key, params);
  }

  public String getErrorString(final String key) {
    return MessageUtil.formatErrorMessage(key, getString(key));
  }

  public String getErrorString(final String key, final String... params) {
    return MessageUtil.getErrorString(getBundle(), key, params);
  }

}