org.eclipse.aether.util

Class ChecksumUtils

java.lang.Object

org.eclipse.aether.util.ChecksumUtils

public final class ChecksumUtils
extends java.lang.Object

A utility class to assist in the verification and generation of checksums.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ChecksumUtils()

Method Summary

Modifier and Type	Method and Description
static java.util.Map<java.lang.String,java.lang.Object>	calc(byte[] dataBytes, java.util.Collection<java.lang.String> algos) Deprecated. Use SPI checksum selector instead.
static java.util.Map<java.lang.String,java.lang.Object>	calc(java.io.File dataFile, java.util.Collection<java.lang.String> algos) Deprecated. Use SPI checksum selector instead.
private static java.util.Map<java.lang.String,java.lang.Object>	calc(java.io.InputStream data, java.util.Collection<java.lang.String> algos)
static byte[]	fromHexString(java.lang.String hexString) Creates a byte array out of hexadecimal representation of the specified bytes.
static java.lang.String	read(java.io.File checksumFile) Deprecated. Use SPI FileProcessor to read and write checksum files.
static java.lang.String	toHexString(byte[] bytes) Creates a hexadecimal representation of the specified bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChecksumUtils

private ChecksumUtils()

Method Detail

read

@Deprecated
public static java.lang.String read(java.io.File checksumFile)
                                         throws java.io.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:

java.io.IOException - If the checksum does not exist or could not be read for other reasons.

calc

@Deprecated
public static java.util.Map<java.lang.String,java.lang.Object> calc(java.io.File dataFile,
                                                                                java.util.Collection<java.lang.String> algos)
                                                                         throws java.io.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:

java.io.IOException - If the data file could not be read.

calc

@Deprecated
public static java.util.Map<java.lang.String,java.lang.Object> calc(byte[] dataBytes,
                                                                                java.util.Collection<java.lang.String> algos)
                                                                         throws java.io.IOException

Deprecated. Use SPI checksum selector instead.

Throws:

java.io.IOException

calc

private static java.util.Map<java.lang.String,java.lang.Object> calc(java.io.InputStream data,
                                                                     java.util.Collection<java.lang.String> algos)
                                                              throws java.io.IOException

Throws:

java.io.IOException

toHexString

public static java.lang.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(java.lang.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