Package com.helger.commons.codec

Interface IByteArrayEncoder

All Superinterfaces:

IEncoder<byte[],byte[]>

All Known Subinterfaces:

IByteArrayCodec, IByteArrayStreamEncoder

All Known Implementing Classes:

Base16Codec, Base32Codec, Base64Codec, FlateCodec, GZIPCodec, IdentityByteArrayCodec, LZWCodec, QuotedPrintableCodec, URLCodec

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface IByteArrayEncoder
extends IEncoder<byte[],byte[]>

Interface for a single encoder of bytes.

Author:

Philip Helger

Method Summary

Modifier and Type	Method	Description
default byte[]	getEncoded(byte[] aDecodedBuffer)	Encode a byte array.
byte[]	getEncoded(byte[] aDecodedBuffer, int nOfs, int nLen)	Encode a byte array.
default byte[]	getEncoded(String sDecoded, Charset aCharset)	Encode the passed string.
default int	getMaximumEncodedLength(int nDecodedLen)	Get the maximum encoded length based on the provided decoded length.

Method Detail

getMaximumEncodedLength

@Nonnegative
default int getMaximumEncodedLength(@Nonnegative
                                    int nDecodedLen)

Get the maximum encoded length based on the provided decoded length. This is purely for performance reasons. The name of the method would be better called "getMaximumEncodedLength".

Parameters:

nDecodedLen - The decoded length. Always ≥ 0.

Returns:

The maximum encoded length. Always ≥ 0.

Since:

9.3.6

getEncoded

@Nullable
@ReturnsMutableCopy
default byte[] getEncoded(@Nullable
                          byte[] aDecodedBuffer)

Encode a byte array.

Specified by:

getEncoded in interface IEncoder<byte[],byte[]>

Parameters:

aDecodedBuffer - The byte array to be encoded. May be null.

Returns:

The encoded byte array or null if the parameter was null.

Throws:

EncodeException - In case something goes wrong

getEncoded

@Nullable
@ReturnsMutableCopy
byte[] getEncoded(@Nullable
                  byte[] aDecodedBuffer,
                  @Nonnegative
                  int nOfs,
                  @Nonnegative
                  int nLen)

Encode a byte array.

Parameters:

aDecodedBuffer - The byte array to be encoded. May be null.

nOfs - Offset into the byte array to start from.

nLen - Number of bytes starting from offset to consider.

Returns:

The encoded byte array or null if the parameter was null.

Throws:

EncodeException - In case something goes wrong

getEncoded

@Nullable
@ReturnsMutableCopy
default byte[] getEncoded(@Nullable
                          String sDecoded,
                          @Nonnull
                          Charset aCharset)

Encode the passed string.

Parameters:

sDecoded - The string to be encoded. May be null.

aCharset - The charset to be used. May not be null.

Returns:

null if the input string is null.

Throws:

EncodeException - In case something goes wrong