/**********************************************************************
 *
 * This file is part of HBCI4Java.
 * Copyright (c) 2001-2008 Stefan Palme
 *
 * This library 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 library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 **********************************************************************/

package org.kapott.hbci.protocol.factory;

import java.util.Hashtable;

import org.kapott.hbci.manager.HBCIUtils;
import org.kapott.hbci.manager.MsgGen;
import org.kapott.hbci.protocol.MSG;
import org.kapott.hbci.tools.ObjectFactory;

public class MSGFactory 
    extends ObjectFactory
{
    private static MSGFactory instance;
    
    public static synchronized MSGFactory getInstance()
    {
        if (instance==null) {
            instance=new MSGFactory();
        }
        return instance;
    }
    
    private MSGFactory()
    {
    	super(Integer.parseInt(HBCIUtils.getParam("kernel.objpool.MSG","8")));
    }
    
    public MSG createMSG(String type,MsgGen gen,Hashtable<String,String> clientValues)
    {
        MSG ret=(MSG)getFreeObject();
        
        if (ret==null) {
            // HBCIUtils.log("creating new MSG object",HBCIUtils.LOG_DEBUG);
            ret=new MSG(type,gen,clientValues);
            addToUsedPool(ret);
        } else {
            // HBCIUtils.log("resuing MSG object",HBCIUtils.LOG_DEBUG);
            try {
                ret.init(type,gen,clientValues);
                addToUsedPool(ret);
            } catch (Exception e) {
                addToFreePool(ret);
                throw (RuntimeException)e;
            }
        }
        
        return ret;
    }
    
    public MSG createMSG(String type, String res, int fullResLen, MsgGen gen)
    {
        return createMSG(type,res,fullResLen,gen,MSG.CHECK_SEQ);
    }
    
    public MSG createMSG(String type,String res,int fullResLen,MsgGen gen,boolean checkSeq)
    {
        return createMSG(type,res,fullResLen,gen,checkSeq,true);
    }
    
    public MSG createMSG(String type,String res,int fullResLen,MsgGen gen,boolean checkSeq,boolean checkValids)
    {
        MSG ret=(MSG)getFreeObject();
        
        if (ret==null) {
            // HBCIUtils.log("creating new MSG object",HBCIUtils.LOG_DEBUG);
            ret=new MSG(type,res,fullResLen,gen,checkSeq,checkValids);
            addToUsedPool(ret);
        } else {
            // HBCIUtils.log("reusing MSG object",HBCIUtils.LOG_DEBUG);
            try {
                ret.init(type,res,fullResLen,gen,checkSeq,checkValids);
                addToUsedPool(ret);
            } catch (Exception e) {
                addToFreePool(ret);
                throw (RuntimeException)e;
            }
        }

        return ret;
    }
    
    public void unuseObject(Object o)
    {
        if (o!=null) {
            ((MSG)o).destroy();
            super.unuseObject(o);
        }
    }
}
