    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017package org.apache.commons.io;
    018
    019import java.io.File;
    020import java.io.FileNotFoundException;
    021import java.io.RandomAccessFile;
    022import java.nio.file.Path;
    023
    024/**
    025 * Access modes and factory methods for {@link RandomAccessFile}.
    026 *
    027 * @since 2.12.0
    028 */
    029public enum RandomAccessFileMode {
    030
    031    /**
    032     * Mode "r" opens for reading only.
    033     */
    034    READ_ONLY("r"),
    035
    036    /**
    037     * Mode "rw" opens for reading and writing.
    038     */
    039    READ_WRITE("rw"),
    040
    041    /**
    042     * Mode "rws" opens for reading and writing, as with "rw", and also require that every update to the file's content or
    043     * metadata be written synchronously to the underlying storage device.
    044     */
    045    READ_WRITE_SYNC_ALL("rws"),
    046
    047    /**
    048     * Mode "rwd" open for reading and writing, as with "rw", and also require that every update to the file's content be
    049     * written synchronously to the underlying storage device.
    050     */
    051    READ_WRITE_SYNC_CONTENT("rwd");
    052
    053    private final String mode;
    054
    055    RandomAccessFileMode(final String mode) {
    056        this.mode = mode;
    057    }
    058
    059    /**
    060     * Creates a random access file stream to read from, and optionally to write to, the file specified by the {@link File}
    061     * argument.
    062     *
    063     * @param file the file object
    064     * @return a random access file stream
    065     * @throws FileNotFoundException See {@link RandomAccessFile#RandomAccessFile(File, String)}.
    066     */
    067    public RandomAccessFile create(final File file) throws FileNotFoundException {
    068        return new RandomAccessFile(file, mode);
    069    }
    070
    071    /**
    072     * Creates a random access file stream to read from, and optionally to write to, the file specified by the {@link File}
    073     * argument.
    074     *
    075     * @param file the file object
    076     * @return a random access file stream
    077     * @throws FileNotFoundException See {@link RandomAccessFile#RandomAccessFile(File, String)}.
    078     */
    079    public RandomAccessFile create(final Path file) throws FileNotFoundException {
    080        return create(file.toFile());
    081    }
    082
    083    /**
    084     * Creates a random access file stream to read from, and optionally to write to, the file specified by the {@link File}
    085     * argument.
    086     *
    087     * @param file the file object
    088     * @return a random access file stream
    089     * @throws FileNotFoundException See {@link RandomAccessFile#RandomAccessFile(File, String)}.
    090     */
    091    public RandomAccessFile create(final String file) throws FileNotFoundException {
    092        return new RandomAccessFile(file, mode);
    093    }
    094
    095    @Override
    096    public String toString() {
    097        return mode;
    098    }
    099
    100}