/* * This file is part of ADDIS (Aggregate Data Drug Information System). * ADDIS is distributed from http://drugis.org/. * Copyright © 2009 Gert van Valkenhoef, Tommi Tervonen. * Copyright © 2010 Gert van Valkenhoef, Tommi Tervonen, Tijs Zwinkels, * Maarten Jacobs, Hanno Koeslag, Florin Schimbinschi, Ahmad Kamal, Daniel * Reid. * Copyright © 2011 Gert van Valkenhoef, Ahmad Kamal, Daniel Reid, Florin * Schimbinschi. * Copyright © 2012 Gert van Valkenhoef, Daniel Reid, Joël Kuiper, Wouter * Reckman. * Copyright © 2013 Gert van Valkenhoef, Joël Kuiper. * * 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 3 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, see <http://www.gnu.org/licenses/>. */ package org.drugis.addis.util; import java.text.FieldPosition; import java.text.Format; import java.text.NumberFormat; import java.text.ParsePosition; public class MissingValueFormat extends Format { private static final long serialVersionUID = -7318072422588445440L; private final NumberFormat d_format; public MissingValueFormat(NumberFormat format) { d_format = format; } @Override public StringBuffer format(Object obj, StringBuffer toAppendTo, FieldPosition pos) { return toAppendTo.append(obj == null ? "N/A" : d_format.format(obj)); } @Override public Object parseObject(String source, ParsePosition pos) { int cache = pos.getIndex(); Number parse = d_format.parse(source, pos); if (pos.getIndex() != cache) { return parse; } else { pos.setIndex(source.length()); return null; } } }