/**
* Copyright (c) 2013 Eclipse contributors and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.eclipse.emf.ecore.xcore.conversion;
import org.eclipse.xtext.conversion.ValueConverterException;
import org.eclipse.xtext.conversion.impl.AbstractValueConverter;
import org.eclipse.xtext.nodemodel.INode;
import org.eclipse.xtext.util.Strings;
public class SignedIntValueConverter extends AbstractValueConverter<Integer>
{
public SignedIntValueConverter()
{
super();
}
public String toString(Integer value)
{
if (value == null)
{
throw new ValueConverterException(" SignedInt may not be null.", null, null);
}
return value.toString();
}
public Integer toValue(String string, INode node)
{
if (Strings.isEmpty(string))
throw new ValueConverterException("Couldn't convert empty string to an int value.", node, null);
try
{
int intValue = Integer.parseInt(string, 10);
return Integer.valueOf(intValue);
}
catch (NumberFormatException e)
{
throw new ValueConverterException("Couldn't convert '" + string + "' to an int value.", node, e);
}
}
}