Java Path Resolve nio getResolvableFilePath(String path)

Description

Convert path string to validated file path string.

License

Apache License

Parameter

Parameter	Description
path	File path

Exception

Parameter	Description
IOException	IO error occurred.

Return

Validated path string

Declaration

public static String getResolvableFilePath(String path) throws IOException 

Method Source Code

//package com.java2s;
/*//from w  ww. ja  va 2s  .c om
 * Copyright 2017 The Mochalog 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.
 */

import java.io.IOError;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class Main {
    /**
     * Convert path string to validated file path string.
     * @param path File path
     * @return Validated path string
     * @throws IOException IO error occurred.
     */
    public static String getResolvableFilePath(String path) throws IOException {
        return getResolvableFilePath(Paths.get(path));
    }

    /**
     * Convert unvalidated path object to fully validated
     * path string.
     * @param path Unvalidated file path
     * @return Validated path string
     * @throws IOException IO error occurred.
     */
    public static String getResolvableFilePath(Path path) throws IOException {
        // Ensure valid file path was supplied
        if (!Files.exists(path)) {
            throw new IOException("Specified file path could not be resolved");
        }

        try {
            // Convert to absolute path with forward-slash file
            // separators
            Path absolutePath = path.toAbsolutePath();
            return absolutePath.toString().replace('\\', '/');
        } catch (IOError e) {
            throw new IOException("File path could not be converted " + "to absolute file path.");
        }
    }
}

Related

1. resolve(final Optional parent, final String child)
2. resolve(Path base, String one, String... more)
3. resolve(Path directory, String... parts)
4. resolve(Path file, Path srcDir, Path destDir)