Java Path Copy nio copyEverythingExcept(Path file, Path srcDir, Path dstDir, Predicate excluded, Consumer onCopy)

Description

copy Everything Except

License

MIT License

Declaration

public static void copyEverythingExcept(Path file, Path srcDir, Path dstDir, Predicate<Path> excluded,
            Consumer<Path> onCopy) throws IOException 

Method Source Code

//package com.java2s;
/*/* ww w  .  java  2s. c  om*/
 *  This file is part of CubicChunksConverter, licensed under the MIT License (MIT).
 *
 *  Copyright (c) 2017 contributors
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *  THE SOFTWARE.
 */

import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.StandardCopyOption;
import java.util.function.Consumer;
import java.util.function.Predicate;

public class Main {
    public static void copyEverythingExcept(Path file, Path srcDir, Path dstDir, Predicate<Path> excluded,
            Consumer<Path> onCopy) throws IOException {
        try {
            Files.list(file).forEach(f -> {
                if (!excluded.test(f)) {
                    try {
                        copyFile(f, srcDir, dstDir);
                        if (Files.isRegularFile(f)) {
                            onCopy.accept(f);
                        }
                        if (Files.isDirectory(f)) {
                            Files.createDirectories(f);
                            copyEverythingExcept(f, srcDir, dstDir, excluded, onCopy);
                        } else if (!Files.isRegularFile(f)) {
                            throw new UnsupportedOperationException();
                        }
                    } catch (IOException e) {
                        throw new UncheckedIOException(e);
                    }
                }
            });
        } catch (UncheckedIOException e) {
            throw e.getCause();
        }
    }

    public static void copyFile(Path srcFile, Path srcDir, Path dstDir) throws IOException {
        Path relative = srcDir.relativize(srcFile);
        Path dstFile = dstDir.resolve(relative);

        if (Files.exists(dstFile) && Files.isDirectory(dstFile)) {
            return; // already exists, stop here to avoid DirectoryNotEmptyException
        }
        Files.copy(srcFile, dstFile, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.COPY_ATTRIBUTES);
    }
}

Related

1. copyAlways(Path source, Path target)
2. copyAsTrueTempFile(Path source, FileAttribute... attrs)
3. copyConfigFile(final String file, final Path dir)
4. copyContainer(String from, String to, IProgressMonitor monitor)
5. copyContents(Path from, Path to)
6. copyFile(final String fileName, final String from, final String to)
7. copyFile(InputStream from, Path to)
8. copyFile(Path from, Path to)
9. copyFile(Path source, Path destination)