Java Utililty Methods ByteBuffer Decode

List of utility methods to do ByteBuffer Decode

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Description

The list of methods to do ByteBuffer Decode are organized into topic(s).

Method

DoubledecodeDouble(ByteBuffer bb)
decode Double 
return bb.getDouble();
intdecodeInt(ByteBuffer buffer, int start)
decode Int 
return buffer.getInt(start);
StringdecodeIO(String encoding, ByteBuffer bbuf)
decode IO 
if (bbuf.hasArray())
    return new String(bbuf.array(), encoding);
throw new IllegalArgumentException();
intdecodeLength(ByteBuffer buf)
Decode octets and extract the length information from a DER-encoded message. 
if (buf == null || buf.remaining() == 0) {
    throw new IllegalArgumentException("Null or empty buffer");
int len = 0;
byte first = buf.get();
if (first >> 7 == 0) {
    len = first & 0x7f;
} else {
...
longdecodeLong(ByteBuffer buffer, int start)
decode Long 
return buffer.getLong(start);
StringdecodeNIO(String encoding, ByteBuffer bbuf)
decode NIO 
Charset cset = Charset.forName(encoding);
CharsetDecoder csetdecoder = cset.newDecoder();
csetdecoder.onMalformedInput(CodingErrorAction.REPLACE);
csetdecoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
try {
    CharBuffer cbuf = csetdecoder.decode(bbuf);
    return cbuf.toString();
} catch (CharacterCodingException e) {
...
longdecodeNumber(byte firstByte, ByteBuffer buffer)
decode Number 
boolean isNeg = testBit(firstByte, OB_INT_SIGN_BIT_POS);
byte lenOrValue = (byte) (firstByte & OB_INT_VALUE_MASK);
if (lenOrValue <= OB_MAX_INT_1B) {
    return isNeg ? -lenOrValue : lenOrValue;
} else {
    long value = 0;
    long len = lenOrValue - OB_MAX_INT_1B;
    if (len == 5 || len == 7) {
...
intdecodeStoredBits(ByteBuffer bb)
decode Stored Bits 
return bb.getInt();
ListdecodeStringSequence(ByteBuffer bb)
decode String Sequence 
List<String> names = new ArrayList<String>();
bb.mark(); 
while (bb.hasRemaining()) {
    if (bb.get() == 0) {
        ByteBuffer nameBuffer = (ByteBuffer) bb.duplicate().limit(bb.position() - 1).reset();
        if (nameBuffer.hasRemaining()) {
            names.add(decodeString(nameBuffer));
        bb.mark(); 
return names;
CharBufferdecodeThrowing(Charset charset, ByteBuffer in)
Decodes in using charset , ensuring that a CharacterCodingException is thrown on invalid input. 
return charset.newDecoder().onMalformedInput(CodingErrorAction.REPORT)
        .onUnmappableCharacter(CodingErrorAction.REPORT).decode(in);