Package org.codehaus.groovy.runtime

Class EncodingGroovyMethods

java.lang.Object

org.codehaus.groovy.runtime.EncodingGroovyMethods

public class EncodingGroovyMethods
extends Object

This class defines all the encoding/decoding groovy methods which enhance the normal JDK classes when inside the Groovy environment. Static methods are used with the first parameter the destination class.

Constructor Summary

Constructors

Constructor	Description
EncodingGroovyMethods()

Method Summary

Modifier and Type	Method	Description
static byte[]	decodeBase64(String value)	Decode the String from Base64 into a byte array.
static byte[]	decodeBase64Url(String value)	Decodes a Base64 URL and Filename Safe encoded String into a byte array.
static byte[]	decodeHex(String value)	Decodes a hex string to a byte array.
static String	digest(byte[] self, String algorithm)	digest the byte array
static String	digest(CharSequence self, String algorithm)	digest the CharSequence instance
static Writable	encodeBase64(byte[] data)	Produce a Writable object which writes the Base64 encoding of the byte array.
static Writable	encodeBase64(byte[] data, boolean chunked)	Produce a Writable object which writes the Base64 encoding of the byte array.
static Writable	encodeBase64(Byte[] data)	Produce a Writable object which writes the Base64 encoding of the byte array.
static Writable	encodeBase64(Byte[] data, boolean chunked)	Produce a Writable object which writes the Base64 encoding of the byte array.
static Writable	encodeBase64Url(byte[] data)	Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array.
static Writable	encodeBase64Url(byte[] data, boolean pad)	Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array.
static Writable	encodeBase64Url(Byte[] data)	Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array.
static Writable	encodeBase64Url(Byte[] data, boolean pad)	Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array.
static Writable	encodeHex(byte[] data)	Produces a Writable that writes the hex encoding of the byte[].
static Writable	encodeHex(Byte[] data)	Produces a Writable that writes the hex encoding of the Byte[].
static String	md5(byte[] self)	Calculate md5 of the byte array
static String	md5(CharSequence self)	Calculate md5 of the CharSequence instance
static String	sha256(byte[] self)	Calculate SHA-256 of the byte array
static String	sha256(CharSequence self)	Calculate SHA-256 of the CharSequence instance

Methods inherited from class java.lang.Object

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

Constructor Details

EncodingGroovyMethods

public EncodingGroovyMethods()

Method Details

encodeBase64

public static Writable encodeBase64(Byte[] data,
 boolean chunked)

Produce a Writable object which writes the Base64 encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 encoding and chunking see RFC 4648.

Parameters:

data - Byte array to be encoded

chunked - whether the Base64 encoded data should be MIME chunked

Returns:

object which will write the Base64 encoding of the byte array

Since:

1.5.1

encodeBase64

public static Writable encodeBase64(Byte[] data)

Produce a Writable object which writes the Base64 encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 encoding and chunking see RFC 4648.

Parameters:

data - Byte array to be encoded

Returns:

object which will write the Base64 encoding of the byte array

Since:

1.0

encodeBase64

public static Writable encodeBase64(byte[] data,
 boolean chunked)

Produce a Writable object which writes the Base64 encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 encoding and chunking see RFC 4648.

Parameters:

data - byte array to be encoded

chunked - whether the Base64 encoded data should be MIME chunked

Returns:

object which will write the Base64 encoding of the byte array

Since:

1.5.7

encodeBase64

public static Writable encodeBase64(byte[] data)

Produce a Writable object which writes the Base64 encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 encoding and chunking see RFC 4648.

Parameters:

data - byte array to be encoded

Returns:

object which will write the Base64 encoding of the byte array

Since:

1.0

encodeBase64Url

public static Writable encodeBase64Url(Byte[] data)

Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 URL and Filename Safe encoding see RFC 4648 - Section 5 Base 64 Encoding with URL and Filename Safe Alphabet.

The method omits padding and is equivalent to calling encodeBase64Url(Byte[], boolean) with a value of false.

Parameters:

data - Byte array to be encoded

Returns:

object which will write the Base64 URL and Filename Safe encoding of the byte array

Since:

2.5.0

See Also:

• encodeBase64Url(Byte[], boolean)

encodeBase64Url

public static Writable encodeBase64Url(Byte[] data,
 boolean pad)

Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 URL and Filename Safe encoding see RFC 4648 - Section 5 Base 64 Encoding with URL and Filename Safe Alphabet.

Parameters:

data - Byte array to be encoded

pad - whether the encoded data should be padded

Returns:

object which will write the Base64 URL and Filename Safe encoding of the byte array

Since:

2.5.0

encodeBase64Url

public static Writable encodeBase64Url(byte[] data)

Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 URL and Filename Safe encoding see RFC 4648 - Section 5 Base 64 Encoding with URL and Filename Safe Alphabet.

The method omits padding and is equivalent to calling encodeBase64Url(byte[], boolean) with a value of false.

Parameters:

data - Byte array to be encoded

Returns:

object which will write the Base64 URL and Filename Safe encoding of the byte array

Since:

2.5.0

See Also:

• encodeBase64Url(byte[], boolean)

encodeBase64Url

public static Writable encodeBase64Url(byte[] data,
 boolean pad)

Produce a Writable object which writes the Base64 URL and Filename Safe encoding of the byte array. Calling toString() on the result returns the encoding as a String. For more information on Base64 URL and Filename Safe encoding see RFC 4648 - Section 5 Base 64 Encoding with URL and Filename Safe Alphabet.

Parameters:

data - Byte array to be encoded

pad - whether the encoded data should be padded

Returns:

object which will write the Base64 URL and Filename Safe encoding of the byte array

Since:

2.5.0

decodeBase64

public static byte[] decodeBase64(String value)

Decode the String from Base64 into a byte array.

Parameters:

value - the string to be decoded

Returns:

the decoded bytes as an array

Since:

1.0

decodeBase64Url

public static byte[] decodeBase64Url(String value)

Decodes a Base64 URL and Filename Safe encoded String into a byte array.

Parameters:

value - the string to be decoded

Returns:

the decoded bytes as an array

Since:

2.5.0

encodeHex

public static Writable encodeHex(Byte[] data)

Produces a Writable that writes the hex encoding of the Byte[]. Calling toString() on this Writable returns the hex encoding as a String. The hex encoding includes two characters for each byte and all letters are lower case.

Parameters:

data - byte array to be encoded

Returns:

object which will write the hex encoding of the byte array

See Also:

• Integer.toHexString(int)

encodeHex

public static Writable encodeHex(byte[] data)

Produces a Writable that writes the hex encoding of the byte[]. Calling toString() on this Writable returns the hex encoding as a String. The hex encoding includes two characters for each byte and all letters are lower case.

Parameters:

data - byte array to be encoded

Returns:

object which will write the hex encoding of the byte array

See Also:

• Integer.toHexString(int)

decodeHex

public static byte[] decodeHex(String value)

Decodes a hex string to a byte array. The hex string can contain either upper case or lower case letters.

Parameters:

value - string to be decoded

Returns:

decoded byte array

Throws:

NumberFormatException - If the string contains an odd number of characters or if the characters are not valid hexadecimal values.

md5

public static String md5(CharSequence self)
                  throws NoSuchAlgorithmException

Calculate md5 of the CharSequence instance

Returns:

md5 value

Throws:

NoSuchAlgorithmException - if MD5 algorithm not found

Since:

2.5.0

md5

public static String md5(byte[] self)
                  throws NoSuchAlgorithmException

Calculate md5 of the byte array

Returns:

md5 value

Throws:

NoSuchAlgorithmException - if MD5 algorithm not found

Since:

2.5.0

sha256

public static String sha256(CharSequence self)
                     throws NoSuchAlgorithmException

Calculate SHA-256 of the CharSequence instance

Returns:

SHA-256 value

Throws:

NoSuchAlgorithmException - if SHA-256 algorithm not found

Since:

2.5.3

sha256

public static String sha256(byte[] self)
                     throws NoSuchAlgorithmException

Calculate SHA-256 of the byte array

Returns:

SHA-256 value

Throws:

NoSuchAlgorithmException - if SHA-256 algorithm not found

Since:

2.5.3

digest

public static String digest(CharSequence self,
 String algorithm)
                     throws NoSuchAlgorithmException

digest the CharSequence instance

Parameters:

algorithm - the name of the algorithm requested, e.g. MD5, SHA-1, SHA-256, etc.

Returns:

digested value

Throws:

NoSuchAlgorithmException - if the algorithm not found

Since:

2.5.0

See Also:

• MessageDigest.getInstance(java.lang.String)

digest

public static String digest(byte[] self,
 String algorithm)
                     throws NoSuchAlgorithmException

digest the byte array

Parameters:

algorithm - the name of the algorithm requested, e.g. MD5, SHA-1, SHA-256, etc.

Returns:

digested value

Throws:

NoSuchAlgorithmException - if the algorithm not found

Since:

2.5.0

See Also:

• MessageDigest.getInstance(java.lang.String)