/*
* Copyright (C) 2014 Facebook, Inc.
*
* 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 com.facebook.tools.parser;
import java.util.List;
public interface CliConverter<T> {
public static CliConverter<String> STRING = new CliConverter<String>() {
@Override
public String convert(String value) throws Exception {
return value;
}
};
public static CliConverter<Integer> INT = new CliConverter<Integer>() {
@Override
public Integer convert(String value) throws Exception {
return value == null ? null : Integer.parseInt(value);
}
};
public static CliConverter<List<Integer>> INT_LIST = new RangeListConverter();
public static CliConverter<List<String>> LIST = new ListConverter<>(STRING);
public static CliConverter<Boolean> BOOLEAN = new CliConverter<Boolean>() {
@Override
public Boolean convert(String value) throws Exception {
return value == null ? null : Boolean.valueOf(value);
}
};
public T convert(String value) throws Exception;
}