/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.command.impl;
import org.apache.commons.chain.Catalog;
import org.apache.commons.chain.CatalogFactory;
import org.apache.commons.chain.config.ConfigParser;
import org.apache.commons.chain.impl.CatalogFactoryBase;
import org.apache.commons.digester.Digester;
import org.exoplatform.container.component.ComponentPlugin;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.io.InputStream;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.Iterator;
/**
* Created by The eXo Platform SAS.
*
* @author <a href="mailto:gennady.azarenkov@exoplatform.com">Gennady
* Azarenkov</a>
* @version $Id: CommandService.java 12832 2007-02-15 12:41:32Z geaz $
*/
public class CommandService
{
// protected Catalog catalog;
protected CatalogFactory catalogFactory;
protected Digester digester;
public CommandService()
{
this.catalogFactory = CatalogFactoryBase.getInstance();
final ConfigParser parser = new ConfigParser();
this.digester = AccessController.doPrivileged(new PrivilegedAction<Digester>()
{
public Digester run()
{
return parser.getDigester();
}
});
}
public void addPlugin(ComponentPlugin plugin)
{
// no needs to do anything as CatalogFactory is initialized in plugin
// if (plugin instanceof CommonsXMLConfigurationPlugin) {
// CommonsXMLConfigurationPlugin cplugin = (CommonsXMLConfigurationPlugin)
// plugin;
// can just reinitialize it every time as have single instance
// catalog = cplugin.getCatalog();
// Iterator names = cplugin.getCatalogNames();
// while(names.hasNext()) {
// String name = (String)names.next();
// catalogs.put(name, cplugin.getCatalog(name));
// }
// }
}
/**
* puts catalog (add or update) using XML input stream
*
* @param xml
* @throws IOException
* @throws SAXException
*/
public void putCatalog(final InputStream xml) throws IOException, SAXException
{
// ConfigParser parser = new ConfigParser();
// Prepare our Digester instance
// Digester digester = parser.getDigester();
digester.clear();
try
{
AccessController.doPrivileged(new PrivilegedExceptionAction<Void>()
{
public Void run() throws Exception
{
digester.parse(xml);
return null;
}
});
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof IOException)
{
throw (IOException)cause;
}
else if (cause instanceof SAXException)
{
throw (SAXException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
// parser.getDigester().parse(xml);
}
/**
* @return default catalog
*/
public Catalog getCatalog()
{
Catalog catalog = catalogFactory.getCatalog();
return catalog;
}
/**
* @param name
* @return named catalog
*/
public Catalog getCatalog(String name)
{
Catalog catalog = catalogFactory.getCatalog(name);
return catalog;
}
/**
* @return iterator of catalog names. default catalog is not listed here!
*/
public Iterator getCatalogNames()
{
return catalogFactory.getNames();
}
}