get.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.services.banner;

import org.jdom.*;

import jeeves.interfaces.*;
import jeeves.server.*;
import jeeves.server.context.*;
import jeeves.constants.*;

import org.fao.geonet.constants.*;

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

/** This service returns all information needed to build the banner with XSL
  */

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

	//--------------------------------------------------------------------------
	//---
	//--- Exec
	//---
	//--------------------------------------------------------------------------

	public Element exec(Element params, ServiceContext context) throws Exception
	{
		Element res = new Element(Jeeves.Elem.RESPONSE)
									.addContent(getStack(context))
									.addContent(getUserInfo(context));

		//--- add the invert tag if the banner must be flipped
		//--- used for the arabic language

		if (getInvertValue(context.getLanguage()))
			res.addContent(new Element("invert"));

		return res;
	}

	//--------------------------------------------------------------------------
	//--- Stack building
	//--------------------------------------------------------------------------

	private Element getStack(ServiceContext srvContext)
	{
		Element stackElem = new Element("stack");
		String  service   = srvContext.getService();
//		Element mainSearchElem = (Element) srvContext.getUserSession().getProperty(Geonet.Session.MAIN_SEARCH);

		//-----------------------------------------------------------------------
		//--- build stack according with current service

		//--- we are in the main.search service

		stackElem.addContent(new Element("current") .addContent(service));
		stackElem.addContent(new Element("language").addContent(srvContext.getLanguage()));

		/* RGFIX: should check session and modality (local/remote)
		if (mainSearchElem != null && !mainSearchElem.getChildText(Geonet.SRV_MAIN_RESULT_TEXT).equals(""))
			stackElem.addContent(new Element("result"));
		*/
		return stackElem;
	}

	//--------------------------------------------------------------------------
	//--- Buttons building
	//--------------------------------------------------------------------------

	private Element getUserInfo(ServiceContext srvContext)
	{
		UserSession session = srvContext.getUserSession();

		return new Element("user")
							.addContent(new Element("username").setText(session.getUsername()))
							.addContent(new Element("name")    .setText(session.getName()))
							.addContent(new Element("surname") .setText(session.getSurname()));
	}

	//--------------------------------------------------------------------------

	private boolean getInvertValue(String lang)
	{
		return lang.equals("ar");
	}
}

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