PluginAdapter.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 2008 Pentaho Corporation.  All rights reserved.
 *
 * Created Sept 15, 2008 
 * @author jdixon
 */

package org.pentaho.platform.plugin.services.pluginmgr;

import org.pentaho.platform.api.engine.IPentahoPublisher;
import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.api.engine.IPentahoSystemListener;
import org.pentaho.platform.api.engine.IPluginManager;
import org.pentaho.platform.engine.core.system.PentahoSystem;
import org.pentaho.platform.plugin.services.messages.Messages;
import org.pentaho.platform.util.logging.Logger;

public class PluginAdapter implements IPentahoSystemListener, IPentahoPublisher {
	
	public boolean startup(IPentahoSession session) {
		  
		// from IPentahoSystemListener
		IPluginManager pluginManager = PentahoSystem.get(IPluginManager.class, session);
		if( pluginManager == null ) {
			// we cannot continue without the PluginSettings
			Logger.error( getClass().toString(), Messages.getInstance().getErrorString("PluginAdapter.ERROR_0001_PLUGIN_MANAGER_NOT_CONFIGURED")); //$NON-NLS-1$
			return false;
		}
    pluginManager.reload(session);
		return true;
	}

	public void shutdown() {
    IPluginManager pluginManager = PentahoSystem.get(IPluginManager.class, null);
    if (pluginManager != null) {
      pluginManager.unloadAllPlugins();
    }
	}
	
	public String getDescription() {
		// from IPentahoPublisher
		return Messages.getInstance().getString("PluginAdapter.USER_REFRESH_PLUGINS"); //$NON-NLS-1$
	}

	public String getName() {
		// from IPentahoPublisher
		return Messages.getInstance().getString("PluginAdapter.USER_PLUGIN_MANAGER"); //$NON-NLS-1$
	}

	public String publish(IPentahoSession session, int loggingLevel) {
		// from IPentahoPublisher
	  try {
  		PluginMessageLogger.clear();
  		IPluginManager pluginManager = PentahoSystem.get(IPluginManager.class, session);
  		if( pluginManager == null ) {
  			// we cannot continue without the PluginSettings
  			Logger.error( getClass().toString(), Messages.getInstance().getErrorString("PluginAdapter.ERROR_0001_PLUGIN_MANAGER_NOT_CONFIGURED")); //$NON-NLS-1$
  			return Messages.getInstance().getString("PluginAdapter.ERROR_0001_PLUGIN_MANAGER_NOT_CONFIGURED"); //$NON-NLS-1$
  		}
      pluginManager.reload(session);
  		String rtn = PluginMessageLogger.getAll().toString();
  		return rtn;
	  } finally {
      PluginMessageLogger.clear();
	  }
	}
	
}