/*
* PrerequisiteItemWriter.java
*
* Copyright 2004 (C) Frugal <frugal@purplewombat.co.uk>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Created on 18-Dec-2003
*
* Current Ver: $Revision$
*
*
*
*/
package plugin.pretokens.writer;
import java.io.IOException;
import java.io.Writer;
import pcgen.core.prereq.Prerequisite;
import pcgen.core.prereq.PrerequisiteOperator;
import pcgen.persistence.PersistenceLayerException;
import pcgen.persistence.lst.output.prereq.AbstractPrerequisiteWriter;
import pcgen.persistence.lst.output.prereq.PrerequisiteWriterInterface;
public class PreItemWriter extends AbstractPrerequisiteWriter implements
PrerequisiteWriterInterface
{
/* (non-Javadoc)
* @see pcgen.persistence.lst.output.prereq.PrerequisiteWriterInterface#kindHandled()
*/
@Override
public String kindHandled()
{
return "item";
}
/* (non-Javadoc)
* @see pcgen.persistence.lst.output.prereq.PrerequisiteWriterInterface#operatorsHandled()
*/
@Override
public PrerequisiteOperator[] operatorsHandled()
{
return new PrerequisiteOperator[]{PrerequisiteOperator.GTEQ,
PrerequisiteOperator.LT};
}
/* (non-Javadoc)
* @see pcgen.persistence.lst.output.prereq.PrerequisiteWriterInterface#write(java.io.Writer, pcgen.core.prereq.Prerequisite)
*/
@Override
public void write(Writer writer, Prerequisite prereq)
throws PersistenceLayerException
{
checkValidOperator(prereq, operatorsHandled());
try
{
if (prereq.getOperator().equals(PrerequisiteOperator.LT))
{
writer.write('!');
}
writer.write("PREITEM:" + (prereq.isOverrideQualify() ? "Q:":""));
writer.write(prereq.getOperand());
writer.write(',');
writer.write(prereq.getKey());
}
catch (IOException e)
{
throw new PersistenceLayerException(e.getMessage());
}
}
@Override
public boolean specialCase(Writer writer, Prerequisite prereq)
throws IOException
{
PrerequisiteOperator po = getConsolidateMethod(kindHandled(), prereq, false);
if (po == null)
{
return false;
}
if (!po.equals(prereq.getOperator()))
{
writer.write('!');
}
writer.write("PRE" + kindHandled().toUpperCase() + ":"
+ (prereq.isOverrideQualify() ? "Q:" : ""));
writer.write(po.equals(PrerequisiteOperator.GTEQ) ? prereq.getOperand()
: "1");
for (Prerequisite p : prereq.getPrerequisites())
{
writer.write(',');
writer.write(p.getKey());
}
return true;
}
}