getmine.java.svn-base

由国外的一个著名的geonetwork修改而来

//=============================================================================
//===	Copyright (C) 2001-2005 Food and Agriculture Organization of the
//===	United Nations (FAO-UN), United Nations World Food Programme (WFP)
//===	and United Nations Environment Programme (UNEP)
//===
//===	This program 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.
//===
//===	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
//===	General Public License for more details.
//===
//===	You should have received a copy of the GNU General Public License
//===	along with this program; if not, write to the Free Software
//===	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//===
//===	Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
//===	Rome - Italy. email: [e-mail]
//==============================================================================

package org.fao.geonet.guiservices.groups;

import java.util.Set;
import jeeves.interfaces.Service;
import jeeves.resources.dbms.Dbms;
import jeeves.server.ServiceConfig;
import jeeves.server.UserSession;
import jeeves.server.context.ServiceContext;
import org.fao.geonet.constants.Geonet;
import org.fao.geonet.lib.Lib;
import org.jdom.Element;

//=============================================================================

/** Service used to return all groups in the system
  */

public class GetMine implements Service
{
	public void init(String appPath, ServiceConfig params) throws Exception {}

	//--------------------------------------------------------------------------
	//---
	//--- Service
	//---
	//--------------------------------------------------------------------------

	public Element exec(Element params, ServiceContext context) throws Exception
	{
		UserSession session = context.getUserSession();

		if (!session.isAuthenticated())
			return new Element(Geonet.Elem.GROUPS);

		Dbms dbms = (Dbms) context.getResourceManager().open (Geonet.Res.MAIN_DB);

		//--- retrieve user groups

		if (Geonet.Profile.ADMINISTRATOR.equals(session.getProfile()))
			return Lib.local.retrieve(dbms, "Groups", "id > 1");
		else
		{
			String query = "SELECT groupId as id FROM UserGroups WHERE groupId > 1 "+
								"AND userId=" + session.getUserId();

			Set<String> ids = Lib.element.getIds(dbms.select(query));
			Element groups = Lib.local.retrieve(dbms, "Groups");

			return Lib.element.pruneChildren(groups, ids);
		}
	}
}

//=============================================================================