Package org.eclipse.aether.util

Class ChecksumUtils

java.lang.Object
org.eclipse.aether.util.ChecksumUtils
public final class ChecksumUtils extends Object
A utility class to assist in the verification and generation of checksums.

  • Method Details

    • read

      @Deprecated public static String read(File checksumFile) throws IOException
      Deprecated.
      Use SPI FileProcessor to read and write checksum files.
      Extracts the checksum from the specified file.
      Parameters:
      checksumFile - The path to the checksum file, must not be null.
      Returns:
      The checksum stored in the file, never null.
      Throws:
      IOException - If the checksum does not exist or could not be read for other reasons.

    • calc

      @Deprecated public static Map<String,Object> calc(File dataFile, Collection<String> algos) throws IOException
      Deprecated.
      Use SPI checksum selector instead.
      Calculates checksums for the specified file.
      Parameters:
      dataFile - The file for which to calculate checksums, must not be null.
      algos - The names of checksum algorithms (cf. MessageDigest.getInstance(String) to use, must not be null.
      Returns:
      The calculated checksums, indexed by algorithm name, or the exception that occurred while trying to calculate it, never null.
      Throws:
      IOException - If the data file could not be read.

    • calc

      @Deprecated public static Map<String,Object> calc(byte[] dataBytes, Collection<String> algos) throws IOException
      Deprecated.
      Use SPI checksum selector instead.
      Throws:
      IOException

    • toHexString

      public static String toHexString(byte[] bytes)
      Creates a hexadecimal representation of the specified bytes. Each byte is converted into a two-digit hex number and appended to the result with no separator between consecutive bytes.
      Parameters:
      bytes - The bytes to represent in hex notation, may be be null.
      Returns:
      The hexadecimal representation of the input or null if the input was null.

    • fromHexString

      public static byte[] fromHexString(String hexString)
      Creates a byte array out of hexadecimal representation of the specified bytes. If input string is null, null is returned. Input value must have even length (due hex encoding = 2 chars one byte).
      Parameters:
      hexString - The hexString to convert to byte array, may be null.
      Returns:
      The byte array of the input or null if the input was null.
      Since:
      1.8.0