# Class: com.pnfsoftware.jeb.util.io.EndianUtil Byte array to/from primitives with endianness support. ## Static Method: bigEndianBytesToInt - parameter: `array`, type: `byte[]` - return type: `int` Description: Decode a big\-endian 32\-bit integer at offset 0. parameter: array: input bytes return: decoded value ## Static Method: bigEndianBytesToInt - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - return type: `int` Description: Decode a big\-endian 32\-bit integer. parameter: array: input bytes parameter: offset: input offset return: decoded value ## Static Method: bigEndianBytesToLong - parameter: `array`, type: `byte[]` - return type: `long` Description: Decode a big\-endian 64\-bit integer at offset 0. parameter: array: input bytes return: decoded value ## Static Method: bigEndianBytesToLong - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - return type: `long` Description: Decode a big\-endian 64\-bit integer. parameter: array: input bytes parameter: offset: input offset return: decoded value ## Static Method: bigEndianBytesToShort - parameter: `array`, type: `byte[]` - return type: `short` Description: Decode a big\-endian 16\-bit integer at offset 0. parameter: array: input bytes return: decoded value ## Static Method: bigEndianBytesToShort - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - return type: `short` Description: Decode a big\-endian 16\-bit integer. parameter: array: input bytes parameter: offset: input offset return: decoded value ## Static Method: bytesToInt - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - parameter: `order`, type: `java.nio.ByteOrder` - return type: `int` Description: Read 4 bytes and convert it to an integer. parameter: array: input buffer parameter: offset: buffer offset parameter: order: endianness return: decoded value ## Static Method: bytesToLong - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - parameter: `order`, type: `java.nio.ByteOrder` - return type: `long` Description: Read 8 bytes and convert it to a long. parameter: array: input buffer parameter: offset: buffer offset parameter: order: endianness return: decoded value ## Static Method: bytesToNumberSigned - parameter: `bo`, type: `java.nio.ByteOrder` - parameter: `b`, type: `byte[]` - return type: `long` Description: Convert a byte array to a number, sign is extended to long, meaning that {0x88} will result in 0xFFFFFFFF\_FFFFFF88L parameter: bo: byte order to use for decoding parameter: b: input bytes return: decoded signed value ## Static Method: bytesToNumberUnsigned - parameter: `bo`, type: `java.nio.ByteOrder` - parameter: `b`, type: `byte[]` - return type: `long` Description: Convert a byte array to a number, zero extended to long, meaning that {0x88} will result in 0x88L parameter: bo: byte order to use for decoding parameter: b: input bytes return: decoded unsigned value ## Static Method: bytesToShort - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - parameter: `order`, type: `java.nio.ByteOrder` - return type: `short` Description: Read 2 bytes and convert it to a short. parameter: array: input buffer parameter: offset: buffer offset parameter: order: endianness return: decoded value ## Static Method: intToBEBytes - parameter: `v`, type: `int` - return type: `byte[]` Description: Convert a 32\-bit integer to a big\-endian encoded array of bytes. parameter: v: input value return: four\-byte big\-endian representation ## Static Method: intToBEBytes - parameter: `v`, type: `int` - parameter: `output`, type: `byte[]` Description: Encode a 32\-bit integer to big\-endian bytes. parameter: v: input value parameter: output: output buffer ## Static Method: intToBEBytes - parameter: `v`, type: `int` - parameter: `output`, type: `byte[]` - parameter: `offset`, type: `int` Description: Encode a 32\-bit integer to big\-endian bytes. parameter: v: input value parameter: output: output buffer parameter: offset: output offset ## Static Method: intToLEBytes - parameter: `v`, type: `int` - return type: `byte[]` Description: Convert a 32\-bit integer to a little\-endian encoded array of bytes. parameter: v: input value return: four\-byte little\-endian representation ## Static Method: intToLEBytes - parameter: `v`, type: `int` - parameter: `output`, type: `byte[]` Description: Encode a 32\-bit integer to little\-endian bytes. parameter: v: input value parameter: output: output buffer ## Static Method: intToLEBytes - parameter: `v`, type: `int` - parameter: `output`, type: `byte[]` - parameter: `offset`, type: `int` Description: Encode a 32\-bit integer to little\-endian bytes. parameter: v: input value parameter: output: output buffer parameter: offset: output offset ## Static Method: littleEndianBytesToInt - parameter: `array`, type: `byte[]` - return type: `int` Description: Decode a little\-endian 32\-bit integer at offset 0. parameter: array: input bytes return: decoded value ## Static Method: littleEndianBytesToInt - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - return type: `int` Description: Decode a little\-endian 32\-bit integer. parameter: array: input bytes parameter: offset: input offset return: decoded value ## Static Method: littleEndianBytesToLong - parameter: `array`, type: `byte[]` - return type: `long` Description: Decode a little\-endian 64\-bit integer at offset 0. parameter: array: input bytes return: decoded value ## Static Method: littleEndianBytesToLong - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - return type: `long` Description: Decode a little\-endian 64\-bit integer. parameter: array: input bytes parameter: offset: input offset return: decoded value ## Static Method: littleEndianBytesToShort - parameter: `array`, type: `byte[]` - return type: `short` Description: Decode a little\-endian 16\-bit integer at offset 0. parameter: array: input bytes return: decoded value ## Static Method: littleEndianBytesToShort - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - return type: `short` Description: Decode a little\-endian 16\-bit integer. parameter: array: input bytes parameter: offset: input offset return: decoded value ## Static Method: longToBEBytes - parameter: `v`, type: `long` - return type: `byte[]` Description: Convert a 64\-bit integer to a big\-endian encoded array of bytes. parameter: v: input value return: eight\-byte big\-endian representation ## Static Method: longToBEBytes - parameter: `v`, type: `long` - parameter: `output`, type: `byte[]` Description: Encode a 64\-bit integer to big\-endian bytes. parameter: v: input value parameter: output: output buffer ## Static Method: longToBEBytes - parameter: `v`, type: `long` - parameter: `output`, type: `byte[]` - parameter: `offset`, type: `int` Description: Encode a 64\-bit integer to big\-endian bytes. parameter: v: input value parameter: output: output buffer parameter: offset: output offset ## Static Method: longToLEBytes - parameter: `v`, type: `long` - return type: `byte[]` Description: Convert a 64\-bit integer to a little\-endian encoded array of bytes. parameter: v: input value return: eight\-byte little\-endian representation ## Static Method: longToLEBytes - parameter: `v`, type: `long` - parameter: `output`, type: `byte[]` Description: Encode a 64\-bit integer to little\-endian bytes. parameter: v: input value parameter: output: output buffer ## Static Method: longToLEBytes - parameter: `v`, type: `long` - parameter: `output`, type: `byte[]` - parameter: `offset`, type: `int` Description: Encode a 64\-bit integer to little\-endian bytes. parameter: v: input value parameter: output: output buffer parameter: offset: output offset ## Static Method: numberToBytes - parameter: `bo`, type: `java.nio.ByteOrder` - parameter: `v`, type: `long` - parameter: `output`, type: `byte[]` Description: Automatically convert a value depending on the byte array size. If size if not a pow of two, the floor pow of two is filled \(for example is size is 5, value will be considered as integer\). byte\[\] of more than 8 bytes will be cropped. This function is a bridge to xxxToLEBytes and xxxToBEBytes functions. parameter: bo: byte order to use for output value parameter: v: input value parameter: output: output representation of v, using the given ByteOrder ## Static Method: shortToBEBytes - parameter: `v`, type: `short` - return type: `byte[]` Description: Convert a 16\-bit integer to a big\-endian encoded array of bytes. parameter: v: input value return: two\-byte big\-endian representation ## Static Method: shortToBEBytes - parameter: `v`, type: `short` - parameter: `output`, type: `byte[]` Description: Encode a 16\-bit integer to big\-endian bytes. parameter: v: input value parameter: output: output buffer ## Static Method: shortToBEBytes - parameter: `v`, type: `short` - parameter: `output`, type: `byte[]` - parameter: `offset`, type: `int` Description: Encode a 16\-bit integer to big\-endian bytes. parameter: v: input value parameter: output: output buffer parameter: offset: output offset ## Static Method: shortToLEBytes - parameter: `v`, type: `short` - return type: `byte[]` Description: Convert a 16\-bit integer to a little\-endian encoded array of bytes. parameter: v: input value return: two\-byte little\-endian representation ## Static Method: shortToLEBytes - parameter: `v`, type: `short` - parameter: `output`, type: `byte[]` Description: Encode a 16\-bit integer to little\-endian bytes. parameter: v: input value parameter: output: output buffer ## Static Method: shortToLEBytes - parameter: `v`, type: `short` - parameter: `output`, type: `byte[]` - parameter: `offset`, type: `int` Description: Encode a 16\-bit integer to little\-endian bytes. parameter: v: input value parameter: output: output buffer parameter: offset: output offset ## Static Method: swap - parameter: `array`, type: `byte[]` - parameter: `offset`, type: `int` - parameter: `size`, type: `int` Description: Flip the byte order of an array of bytes. This method does not create a new array. parameter: array: the input/output array parameter: offset: start index parameter: size: number of elements to flip ## Static Method: swap - parameter: `array`, type: `byte[]` Description: Flip the byte order of an array of bytes. This method does not create a new array. parameter: array: the input/output array ## Static Method: swapByGroup - parameter: `array`, type: `byte[]` - parameter: `grpByteCount`, type: `int` Description: Flip the byte order of groups of bytes. This method does not create a new array. parameter: array: byte array to change parameter: grpByteCount: number of bytes per group \(2 for 16 bits, 4 for 32 bits, 8 for 64 bits\) ## Static Method: swapInt - parameter: `v`, type: `int` - return type: `int` Description: Swap the byte ordering of an int. parameter: v: input value return: byte\-swapped value ## Static Method: swapLong - parameter: `v`, type: `long` - return type: `long` Description: Swap the byte ordering of a long. parameter: v: input value return: byte\-swapped value ## Static Method: swapShort - parameter: `v`, type: `short` - return type: `short` Description: Swap the byte ordering of a short. parameter: v: input value return: byte\-swapped value