@rem
@rem Copyright 2015 the original author or authors.
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@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
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@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,

@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements.  See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership.  The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License.  You may obtain a copy of the License at
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@REM or more contributor license agreements.  See the NOTICE file
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@REM to you under the Apache License, Version 2.0 (the
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@REM or more contributor license agreements.  See the NOTICE file
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@REM regarding copyright ownership.  The ASF licenses this file
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@REM regarding copyright ownership.  The ASF licenses this file
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@REM or more contributor license agreements.  See the NOTICE file
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@REM regarding copyright ownership.  The ASF licenses this file
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@REM

     * @return the aligned size
     */
    protected static final int size8(final int size, final int align) {

        int rem = size % 8 - align;
        if (rem == 0) {
            return size;
        }
        if (rem < 0) {
            rem = 8 + rem;
        }
        return size + 8 - rem;
    }

    /**
     * Calculates padding needed to align to 8-byte boundary from header start.
     *

     * that floor(floor(x)/i) == floor(x/i) for any real x and integer i != 0. The proof is not
     * quite trivial.
     */
    long quotient = ((dividend >>> 1) / divisor) << 1;
    long rem = dividend - quotient * divisor;
    return rem - (compare(rem, divisor) >= 0 ? divisor : 0);
  }

  /**
   * Returns the unsigned {@code long} value represented by the given decimal string.
   *

 * MIME type detection configuration. It reads extension-to-MIME-type override
 * mappings from FessConfig to handle cases where content-based detection
 * produces incorrect results (e.g., SQL files starting with REM comments
 * being misdetected as batch files).
 */
public class FessMimeTypeHelper extends MimeTypeHelperImpl {

    private static final Logger logger = LogManager.getLogger(FessMimeTypeHelper.class);

    /**