org.apache.commons.compress.archivers.zip.ZipEightByteInteger类的使用及代码示例

x33g5p2x  于2022-02-05 转载在 其他  
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本文整理了Java中org.apache.commons.compress.archivers.zip.ZipEightByteInteger类的一些代码示例，展示了ZipEightByteInteger类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ZipEightByteInteger类的具体详情如下：
包路径：org.apache.commons.compress.archivers.zip.ZipEightByteInteger
类名称：ZipEightByteInteger

ZipEightByteInteger介绍

[英]Utility class that represents an eight byte integer with conversion rules for the little endian byte order of ZIP files.
[中]一个实用类，它表示一个八字节的整数，并带有ZIP文件小端字节顺序的转换规则。

代码示例

代码示例来源：origin: org.apache.commons/commons-compress

private static ZipEightByteInteger dateToZip(final Date d) {
  if (d == null) { return null; }
  return new ZipEightByteInteger((d.getTime() * 10000L) - EPOCH_OFFSET);
}

代码示例来源：origin: org.apache.commons/commons-compress

private static Date zipToDate(final ZipEightByteInteger z) {
  if (z == null || ZipEightByteInteger.ZERO.equals(z)) { return null; }
  final long l = (z.getLongValue() + EPOCH_OFFSET) / 10000L;
  return new Date(l);
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Get value as eight bytes in big endian byte order.
 * @return value as eight bytes in big endian order
 */
public byte[] getBytes() {
  return ZipEightByteInteger.getBytes(value);
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Helper method to get the value as a Java long from an eight-byte array
 * @param bytes the array of bytes
 * @return the corresponding Java BigInteger value
 */
public static BigInteger getValue(final byte[] bytes) {
  return getValue(bytes, 0);
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Helper method to get the value as a Java long from an eight-byte array
 * @param bytes the array of bytes
 * @return the corresponding Java long value
 */
public static long getLongValue(final byte[] bytes) {
  return getLongValue(bytes, 0);
}

代码示例来源：origin: org.apache.commons/commons-compress

ze.setSize(z64.getSize().getLongValue());
} else if (hasCompressedSize) {
  z64.setSize(new ZipEightByteInteger(ze.getSize()));
  ze.setCompressedSize(z64.getCompressedSize().getLongValue());
} else if (hasUncompressedSize) {
  z64.setCompressedSize(new ZipEightByteInteger(ze.getCompressedSize()));
  ze.setLocalHeaderOffset(z64.getRelativeHeaderOffset().getLongValue());

代码示例来源：origin: org.apache.commons/commons-compress

@Override
public boolean equals(final Object o) {
  if (o instanceof X000A_NTFS) {
    final X000A_NTFS xf = (X000A_NTFS) o;
    return (modifyTime == xf.modifyTime || (modifyTime != null && modifyTime.equals(xf.modifyTime))) &&
        (accessTime == xf.accessTime || (accessTime != null && accessTime.equals(xf.accessTime))) &&
        (createTime == xf.createTime || (createTime != null && createTime.equals(xf.createTime)));
  }
  return false;
}

代码示例来源：origin: org.apache.commons/commons-compress

@Override
public int hashCode() {
  int hc = -123;
  if (modifyTime != null) {
    hc ^= modifyTime.hashCode();
  }
  if (accessTime != null) {
    // Since accessTime is often same as modifyTime,
    // this prevents them from XOR negating each other.
    hc ^= Integer.rotateLeft(accessTime.hashCode(), 11);
  }
  if (createTime != null) {
    hc ^= Integer.rotateLeft(createTime.hashCode(), 22);
  }
  return hc;
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Create instance from the eight bytes starting at offset.
 * @param bytes the bytes to store as a ZipEightByteInteger
 * @param offset the offset to start
 */
public ZipEightByteInteger (final byte[] bytes, final int offset) {
  value = ZipEightByteInteger.getValue(bytes, offset);
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Parses the "Zip64 end of central directory locator",
 * finds the "Zip64 end of central directory record" using the
 * parsed information, parses that and positions the stream at the
 * first central directory record.
 *
 * Expects stream to be positioned right behind the "Zip64
 * end of central directory locator"'s signature.
 */
private void positionAtCentralDirectory64()
  throws IOException {
  skipBytes(ZIP64_EOCDL_LOCATOR_OFFSET
       - WORD /* signature has already been read */);
  dwordBbuf.rewind();
  IOUtils.readFully(archive, dwordBbuf);
  archive.position(ZipEightByteInteger.getLongValue(dwordBuf));
  wordBbuf.rewind();
  IOUtils.readFully(archive, wordBbuf);
  if (!Arrays.equals(wordBuf, ZipArchiveOutputStream.ZIP64_EOCD_SIG)) {
    throw new ZipException("archive's ZIP64 end of central "
                + "directory locator is corrupt.");
  }
  skipBytes(ZIP64_EOCD_CFD_LOCATOR_OFFSET
       - WORD /* signature has already been read */);
  dwordBbuf.rewind();
  IOUtils.readFully(archive, dwordBbuf);
  archive.position(ZipEightByteInteger.getLongValue(dwordBuf));
}

代码示例来源：origin: com.impetus.fabric/fabric-jdbc-driver-shaded

ze.setSize(z64.getSize().getLongValue());
} else if (hasCompressedSize) {
  z64.setSize(new ZipEightByteInteger(ze.getSize()));
  ze.setCompressedSize(z64.getCompressedSize().getLongValue());
} else if (hasUncompressedSize) {
  z64.setCompressedSize(new ZipEightByteInteger(ze.getCompressedSize()));
  ze.setLocalHeaderOffset(z64.getRelativeHeaderOffset().getLongValue());

代码示例来源：origin: com.impetus.fabric/fabric-jdbc-driver-shaded

@Override
public boolean equals(final Object o) {
  if (o instanceof X000A_NTFS) {
    final X000A_NTFS xf = (X000A_NTFS) o;
    return (modifyTime == xf.modifyTime || (modifyTime != null && modifyTime.equals(xf.modifyTime))) &&
        (accessTime == xf.accessTime || (accessTime != null && accessTime.equals(xf.accessTime))) &&
        (createTime == xf.createTime || (createTime != null && createTime.equals(xf.createTime)));
  }
  return false;
}

代码示例来源：origin: com.impetus.fabric/fabric-jdbc-driver-shaded

@Override
public int hashCode() {
  int hc = -123;
  if (modifyTime != null) {
    hc ^= modifyTime.hashCode();
  }
  if (accessTime != null) {
    // Since accessTime is often same as modifyTime,
    // this prevents them from XOR negating each other.
    hc ^= Integer.rotateLeft(accessTime.hashCode(), 11);
  }
  if (createTime != null) {
    hc ^= Integer.rotateLeft(createTime.hashCode(), 22);
  }
  return hc;
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Get value as eight bytes in big endian byte order.
 * @param value the value to convert
 * @return value as eight bytes in big endian byte order
 */
public static byte[] getBytes(final long value) {
  return getBytes(BigInteger.valueOf(value));
}

代码示例来源：origin: org.apache.commons/commons-compress

private void readTimeAttr(final byte[] data, int offset, final int length) {
  if (length >= 2 + 3 * 8) {
    final ZipShort tagValueLength = new ZipShort(data, offset);
    if (TIME_ATTR_SIZE.equals(tagValueLength)) {
      offset += 2;
      modifyTime = new ZipEightByteInteger(data, offset);
      offset += 8;
      accessTime = new ZipEightByteInteger(data, offset);
      offset += 8;
      createTime = new ZipEightByteInteger(data, offset);
    }
  }
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Override to make two instances with same value equal.
 * @param o an object to compare
 * @return true if the objects are equal
 */
@Override
public boolean equals(final Object o) {
  if (o == null || !(o instanceof ZipEightByteInteger)) {
    return false;
  }
  return value.equals(((ZipEightByteInteger) o).getValue());
}

代码示例来源：origin: com.impetus.fabric/fabric-jdbc-driver-shaded

private static Date zipToDate(final ZipEightByteInteger z) {
  if (z == null || ZipEightByteInteger.ZERO.equals(z)) { return null; }
  final long l = (z.getLongValue() + EPOCH_OFFSET) / 10000L;
  return new Date(l);
}

代码示例来源：origin: org.apache.commons/commons-compress

/**
 * Records whether a Zip64 extra is present and sets the size
 * information from it if sizes are 0xFFFFFFFF and the entry
 * doesn't use a data descriptor.
 */
private void processZip64Extra(final ZipLong size, final ZipLong cSize) {
  final Zip64ExtendedInformationExtraField z64 =
    (Zip64ExtendedInformationExtraField)
    current.entry.getExtraField(Zip64ExtendedInformationExtraField.HEADER_ID);
  current.usesZip64 = z64 != null;
  if (!current.hasDataDescriptor) {
    if (z64 != null // same as current.usesZip64 but avoids NPE warning
        && (cSize.equals(ZipLong.ZIP64_MAGIC) || size.equals(ZipLong.ZIP64_MAGIC)) ) {
      current.entry.setCompressedSize(z64.getCompressedSize().getLongValue());
      current.entry.setSize(z64.getSize().getLongValue());
    } else {
      current.entry.setCompressedSize(cSize.getValue());
      current.entry.setSize(size.getValue());
    }
  }
}

代码示例来源：origin: org.apache.commons/commons-compress

private int addSizes(final byte[] data) {
    int off = 0;
    if (size != null) {
      System.arraycopy(size.getBytes(), 0, data, 0, DWORD);
      off += DWORD;
    }
    if (compressedSize != null) {
      System.arraycopy(compressedSize.getBytes(), 0, data, off, DWORD);
      off += DWORD;
    }
    return off;
  }
}

代码示例来源：origin: org.apache.commons/commons-compress

@Override
public void parseFromCentralDirectoryData(final byte[] buffer, int offset,
                     final int length)
  throws ZipException {
  // store for processing in reparseCentralDirectoryData
  rawCentralDirectoryData = new byte[length];
  System.arraycopy(buffer, offset, rawCentralDirectoryData, 0, length);
  // if there is no size information in here, we are screwed and
  // can only hope things will get resolved by LFH data later
  // But there are some cases that can be detected
  // * all data is there
  // * length == 24 -> both sizes and offset
  // * length % 8 == 4 -> at least we can identify the diskStart field
  if (length >= 3 * DWORD + WORD) {
    parseFromLocalFileData(buffer, offset, length);
  } else if (length == 3 * DWORD) {
    size = new ZipEightByteInteger(buffer, offset);
    offset += DWORD;
    compressedSize = new ZipEightByteInteger(buffer, offset);
    offset += DWORD;
    relativeHeaderOffset = new ZipEightByteInteger(buffer, offset);
  } else if (length % DWORD == WORD) {
    diskStart = new ZipLong(buffer, offset + length - WORD);
  }
}

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