categmapping.java

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.schedules;

import java.util.Hashtable;
import java.util.List;
import jeeves.resources.dbms.Dbms;
import org.jdom.Element;

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

/** Create a mapping categ name -> categ ID
  */

class CategMapping
{
	private Hashtable htNameId = new Hashtable();

	//--------------------------------------------------------------------------
	//---
	//--- Constructor
	//---
	//--------------------------------------------------------------------------

	public CategMapping(Dbms dbms) throws Exception
	{
		String query = "SELECT * FROM Categories";

		List idsList = dbms.select(query).getChildren();

		for (int i=0; i<idsList.size(); i++)
		{
			Element record = (Element) idsList.get(i);

			String id   = record.getChildText("id");
			String name = record.getChildText("name").toLowerCase();

			htNameId.put(name, id);
		}
	}

	//--------------------------------------------------------------------------
	//---
	//--- API methods
	//---
	//--------------------------------------------------------------------------

	/** Given a category name returns its id */

	public String getId(String name) { return (String) htNameId.get(name); }
}

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