Zip64Mode.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *
 *   https://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
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.commons.compress.archivers.zip;

/**
 * Enumerates the different modes {@link ZipArchiveOutputStream} can operate in.
 *
 * @see ZipArchiveOutputStream#setUseZip64
 * @since 1.3
 */
public enum Zip64Mode {

    /**
     * Use Zip64 extensions for all entries, even if it is clear it is not required.
     */
    Always,

    /**
     * Don't use Zip64 extensions for any entries.
     *
     * <p>
     * This will cause a {@link Zip64RequiredException} to be thrown if {@link ZipArchiveOutputStream} detects it needs Zip64 support.
     * </p>
     */
    Never,

    /**
     * Use Zip64 extensions for all entries where they are required, don't use them for entries that clearly don't require them.
     */
    AsNeeded,

    /**
     * Always use Zip64 extensions for LFH and central directory as {@link Zip64Mode#Always} did, and at the meantime encode the relative offset of LFH and disk
     * number start as needed in CFH as {@link Zip64Mode#AsNeeded} did.
     * <p>
     * This is a compromise for some libraries including 7z and Expand-Archive Powershell utility(and likely Excel).
     */
    AlwaysWithCompatibility
}