org.getobjects.jmi.JMIBatchPositionFormat.java Source code

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Here is the source code for org.getobjects.jmi.JMIBatchPositionFormat.java

Source

/*
  Copyright (C) 2007 Helge Hess
    
  This file is part of Go JMI.
    
  Go 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, or (at your option) any
  later version.
    
  Go 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 Go; see the file COPYING.  If not, write to the
  Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  02111-1307, USA.
*/
package org.getobjects.jmi;

import java.text.FieldPosition;
import java.text.Format;
import java.text.ParsePosition;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.getobjects.appserver.core.WODisplayGroup;

public class JMIBatchPositionFormat extends Format {
    private static final long serialVersionUID = 1L;
    protected static final Log log = LogFactory.getLog("JMI");

    /* formatting */

    @Override
    public StringBuffer format(Object _object, StringBuffer _sb, FieldPosition _pos) {
        if (_object == null)
            return null;

        if (_object instanceof String) {
            _sb.append(_object);
            return _sb;
        }

        if (_object instanceof WODisplayGroup)
            return this.formatDisplayGroup((WODisplayGroup) _object, _sb, _pos);

        log.error("don't know how to format: " + _object);
        _sb.append("[ERROR: unexpected class " + _object.getClass() + "]");
        return null;
    }

    protected StringBuffer formatDisplayGroup(WODisplayGroup _dg, StringBuffer _sb, FieldPosition _pos) {
        // TODO: localize

        int batchCount = _dg.batchCount();
        if (batchCount < 2) /* add nothin' */
            return _sb;

        _sb.append("Page ");
        _sb.append(_dg.currentBatchIndex());
        _sb.append(" of ");
        _sb.append(batchCount);

        return _sb;
    }

    /* parsing */

    @Override
    public Object parseObject(String _s, ParsePosition _pos) {
        /* we do not parse things */
        return null;
    }

}