/*******************************************************************************
* This file is part of Goko.
*
* Goko 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.
*
* Goko 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 Goko. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
package org.goko.common.bindings.converters;
import org.apache.commons.lang3.StringUtils;
import org.eclipse.core.databinding.conversion.Converter;
public class StringDoubleConverter extends Converter {
public StringDoubleConverter() {
super(String.class, Double.class);
}
@Override
public Object convert(Object fromObject) {
if(fromObject instanceof String){
String strValue = (String) fromObject;
if(StringUtils.defaultString(strValue).matches("[-+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?")){
return Double.valueOf(strValue);
}
}
return null;
}
}