co.fxl.data.format.gwt.GWTNumberFormat.java Source code

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Here is the source code for co.fxl.data.format.gwt.GWTNumberFormat.java

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/**
 * Copyright (c) 2010-2015 Dangelmayr IT GmbH. All rights reserved.
 *  
 * This file is part of FXL GUI API.
 *  
 * FXL GUI API 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.
 *  
 * FXL GUI API 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 FXL GUI API.  If not, see <http://www.gnu.org/licenses/>.
 */
package co.fxl.data.format.gwt;

import co.fxl.data.format.api.IFormat;

import com.google.gwt.i18n.client.NumberFormat;

abstract class GWTNumberFormat<T> implements IFormat<T> {

    private String defaultFormatStyle = null;

    // private NumberFormat impl;

    GWTNumberFormat() {
        // impl = NumberFormat.get
        // NumberFormat.getDecimalFormat();
    }

    protected NumberFormat getNumberFormat() {
        if (defaultFormatStyle == null) {
            return NumberFormat.getDecimalFormat();
        } else {
            return NumberFormat.getFormat(defaultFormatStyle);
        }
    }

    @Override
    public String format(T object) {
        if (object == null)
            return "";

        return getNumberFormat().format(((Number) object));
    }

    @Override
    public String format(T object, String pFormat) {
        return format(object);
    }

    @Override
    public T parse(String format) {
        if (format == null)
            return null;
        try {
            return convert(new Double(getNumberFormat().parse(format)));
        } catch (Exception e) {
            return null;
        }
    }

    @Override
    public T parse(String format, String style) {
        return parse(format);
    }

    abstract T convert(Double d);

    // @Override
    // public IFormat<T> setLocale(String locale) {
    // return (IFormat<T>) this;
    // }

    @Override
    public IFormat<T> defaultFormatStyle(String pDefaultFormatStyle) {
        defaultFormatStyle = pDefaultFormatStyle;
        return this;
    }

    @Override
    public IFormat<T> timeZone(TimeZone pTimeZone) {
        return this;
    }

}