/**
* Copyright © 2010-2014 Nokia
*
* 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.jsonschema2pojo.cli;
import static org.apache.commons.lang3.StringUtils.*;
import com.beust.jcommander.ParameterException;
import com.beust.jcommander.converters.BaseConverter;
/**
* A converter that can create a class given a fully qualified class name. Type
* parameters for the class are omitted, since they are no use to JCommander at
* runtime (and the wild-cards prove problematic when attaching this converter
* to an option).
*/
@SuppressWarnings("rawtypes")
public class ClassConverter extends BaseConverter<Class> {
/**
* Create a new class converter.
*
* @param optionName
* The name of the option that will be using this converter.
*/
public ClassConverter(String optionName) {
super(optionName);
}
@Override
public Class convert(String value) {
if (isBlank(value)) {
throw new ParameterException(getErrorString("a blank value", "a class"));
}
try {
return Class.forName(value);
} catch (ClassNotFoundException e) {
throw new ParameterException(getErrorString(value, "a class"));
}
}
}