/*
* Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus.lib.gettext;
import com.caucho.quercus.QuercusModuleException;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.lib.gettext.expr.PluralExpr;
import com.caucho.vfs.Path;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Locale;
/**
* Represents a container for gettext translations.
*/
class GettextResource
{
private Env _env;
protected Path _pathPO;
private Path _pathMO;
private Path _currentPath;
private PluralExpr _pluralExpr;
private HashMap<StringValue, ArrayList<StringValue>> _translations;
private String _charset;
protected GettextResource(Env env,
Path root,
Locale locale,
CharSequence category,
CharSequence domain)
{
_env = env;
StringBuilder sb = new StringBuilder(locale.toString());
sb.append('/');
sb.append(category);
sb.append('/');
sb.append(domain);
sb.append(".po");
_pathPO = lookupPath(env, root, sb.toString());
sb.setCharAt(sb.length() - 2, 'm');
_pathMO = lookupPath(env, root, sb.toString());
init();
}
private Path lookupPath(Env env, Path root, String relPath)
{
return root.lookup(relPath);
}
private void init()
{
if (_pathPO != null && _pathPO.exists())
_currentPath = _pathPO;
else if (_pathMO != null && _pathMO.exists())
_currentPath = _pathMO;
else
return;
try {
GettextParser parser;
if (_currentPath == _pathPO)
parser = new POFileParser(_env, _currentPath);
else
parser = new MOFileParser(_env, _currentPath);
_pluralExpr = parser.getPluralExpr();
_translations = parser.readTranslations();
_charset = parser.getCharset();
parser.close();
} catch (IOException e) {
throw new QuercusModuleException(e.getMessage());
}
}
/**
* Returns the translation for this singular key.
*
* @param key
*/
protected StringValue getTranslation(StringValue key)
{
if (isModified())
init();
return getTranslationImpl(key, 0);
}
private boolean isModified()
{
return true;
}
/**
* Returns the translation for this plural key.
*
* @param key
* @param quantity
*/
protected StringValue getTranslation(StringValue key, int quantity)
{
if (isModified())
init();
if (_pluralExpr != null)
return getTranslationImpl(key, _pluralExpr.eval(quantity));
else
return null;
}
/**
* Returns the translation for this key at the specified index in the array.
*
* @param key to find translation of
* @param index in the array for this key
*
* @return translated string, else null on error.
*/
protected StringValue getTranslationImpl(StringValue key, int index)
{
if (_translations == null)
return null;
ArrayList<StringValue> pluralForms = _translations.get(key);
if (pluralForms == null || pluralForms.size() == 0)
return null;
if (index < pluralForms.size())
return pluralForms.get(index);
else
return pluralForms.get(0);
}
protected String getCharset()
{
return _charset;
}
}