org.sirix.utils.SirixFiles Maven / Gradle / Ivy

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package org.sirix.utils;

import java.io.File;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Comparator;

/**
 * Static methods for file operations.
 *
 * @author Johannes Lichtenberger, University of Konstanz
 */
public final class SirixFiles {

  /** Utility methods. */
  private SirixFiles() {
    throw new AssertionError("May not be instantiated!");
  }

  /**
   * Recursively remove a directory.
   *
   * @param path {@link Path} to the directory
   * @throws UncheckedIOException if any I/O operation fails
   * @throws NullPointerException if any of the arguments are {@code null}
   */
  public static void recursiveRemove(final Path path) {
    try {
      if (Files.exists(path)) {
        Files.walk(path)
             .sorted(Comparator.reverseOrder())
             .map(Path::toFile)
             .forEach(File::delete);
      }
    } catch (final IOException e) {
      throw new UncheckedIOException(e);
    }
  }
}