/*
* Copyright 2002-2013 the original author or authors.
*
* 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 org.springframework.xd.shell.converter;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.List;
import org.springframework.shell.core.Completion;
import org.springframework.shell.core.Converter;
import org.springframework.shell.core.MethodTarget;
import org.springframework.stereotype.Component;
/**
* Knows how to convert from a String to a new {@link NumberFormat} instance.
*
* @author Eric Bottard
*/
@Component
public class NumberFormatConverter implements Converter<NumberFormat> {
public static final String DEFAULT = "<use platform locale>";
@Override
public boolean supports(Class<?> type, String optionContext) {
return NumberFormat.class.isAssignableFrom(type);
}
@Override
public NumberFormat convertFromText(String value, Class<?> targetType, String optionContext) {
if (DEFAULT.equals(value)) {
return NumberFormat.getInstance();
}
else {
return new DecimalFormat(value);
}
}
@Override
public boolean getAllPossibleValues(List<Completion> completions, Class<?> targetType, String existingData,
String optionContext, MethodTarget target) {
return false;
}
}