br.com.caelum.vraptor.converter.PrimitiveDoubleConverter Maven / Gradle / Ivy
/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package br.com.caelum.vraptor.converter;
import static com.google.common.base.Strings.isNullOrEmpty;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import br.com.caelum.vraptor.Convert;
import br.com.caelum.vraptor.Converter;
import br.com.caelum.vraptor.ioc.ApplicationScoped;
/**
* VRaptor's primitive double converter.
*
* @author Cecilia Fernandes
*/
@Convert(double.class)
@ApplicationScoped
public class PrimitiveDoubleConverter implements Converter {
public Double convert(String value, Class type, ResourceBundle bundle) {
if (isNullOrEmpty(value)) {
return 0d;
}
try {
return Double.parseDouble(value);
} catch (NumberFormatException e) {
throw new ConversionError(MessageFormat.format(bundle.getString("is_not_a_valid_number"), value));
}
}
}