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Library for file system operations (using java.nio.file).

There is a newer version: 1.1.0

package com.crabshue.commons.file.nio;

import java.nio.file.Path;
import java.util.Optional;

import com.crabshue.commons.exceptions.ApplicationException;
import com.crabshue.commons.file.nio.exceptions.FileErrorContext;
import com.crabshue.commons.file.nio.exceptions.FileErrorType;
import lombok.NonNull;

/**
 * Utility class related to filename operations.
 */
public class FilenameUtils {

    /**
     * Get the name of a file.
     *
     * @param file the file.
     * @return the filename.
     */
    public static String getFilename(@NonNull final Path file) {

        return Optional.ofNullable(file.getFileName())
            .map(Path::toString)
            .orElseThrow(() ->
                new ApplicationException(FileErrorType.ERROR_READING_FILENAME)
                    .addContextValue(FileErrorContext.FILE, file));
    }

}