com.beust.jcommander.converters.PathConverter Maven / Gradle / Ivy
/**
* Copyright (C) 2010 the original author or authors.
* See the notice.md file distributed with this work for additional
* information regarding copyright ownership.
*
* 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.beust.jcommander.converters;
import com.beust.jcommander.ParameterException;
import java.nio.file.InvalidPathException;
import java.nio.file.Path;
import java.nio.file.Paths;
/**
* Convert a string into a path.
*
* @author samvv
*/
public class PathConverter extends BaseConverter {
public PathConverter(String optionName) {
super(optionName);
}
public Path convert(String value) {
try {
return Paths.get(value);
} catch (InvalidPathException e) {
String encoded = escapeUnprintable(value);
throw new ParameterException(getErrorString(encoded, "a path"));
}
}
private static String escapeUnprintable(String value) {
StringBuilder bldr = new StringBuilder();
for (char c: value.toCharArray()) {
if (c < ' ') {
bldr.append("\\u").append(String.format("%04X", (int) c));
} else {
bldr.append(c);
}
}
return bldr.toString();
}
}