Java Utililty Methods File Read via ByteBuffer

List of utility methods to do File Read via ByteBuffer

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Description

The list of methods to do File Read via ByteBuffer are organized into topic(s).

Method

booleanreadAiffHeader(DataInputStream inStrm, FileChannel fc)
read Aiff Header 
byte[] buf = new byte[10];
boolean isAIFC = false;
try {
    inStrm.readInt();
    inStrm.readFully(buf, 0, 4);
    if ("AIFC".equals(new String(buf, 0, 4)))
        isAIFC = true;
    else if (!"AIFF".equals(new String(buf, 0, 4)))
...
voidreadAndTransfer(final String dir)
read And Transfer 
File file = new File(dir);
try (FileInputStream fis = new FileInputStream(file)) {
    FileChannel fc = fis.getChannel();
    ByteBuffer bb = ByteBuffer.allocate(1024);
    SocketChannel sc = null;
    while (fc.read(bb) != -1) {
} catch (Exception e) {
...
byte[]readAsByteArray(final InputStream source)
Reads everything from the input stream using NIO and returns an array of bytes. 
final ByteBuffer bb = readAsByteBuffer(source);
final byte[] result = new byte[bb.limit()];
bb.get(result);
bb.clear();
return result;
shortreadBigEndianWord(byte[] buf)
read Big Endian Word 
ByteBuffer bb = ByteBuffer.wrap(buf);
bb.order(ByteOrder.BIG_ENDIAN);
if (bb.hasRemaining()) {
    short v = bb.getShort();
    return v;
return 0;
ByteBufferreadBinaryFile(File file)
read Binary File 
ByteBuffer result = ByteBuffer.allocate((int) file.length());
BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
byte[] buf = new byte[1024];
int len = 0;
while ((len = in.read(buf)) != -1) {
    result.put(buf, 0, len);
in.close();
...
float[]readBinaryFileAsFloats(String fileName)
read Binary File As Floats 
FileInputStream fis = new FileInputStream(new File(fileName));
byte data[] = readFully(fis);
ByteBuffer bb = ByteBuffer.wrap(data);
bb.order(ByteOrder.nativeOrder());
FloatBuffer fb = bb.asFloatBuffer();
float result[] = new float[fb.capacity()];
fb.get(result);
return result;
...
byte[]readByte(String filePath)
read Byte 
try {
    FileInputStream fis = new FileInputStream(filePath);
    FileChannel channel = fis.getChannel();
    ByteBuffer byteBuffer = ByteBuffer.allocate((int) channel.size());
    while ((channel.read(byteBuffer)) > 0) {
    channel.close();
    fis.close();
...
byte[]readBytes(File f)
read Bytes 
FileInputStream fin = null;
FileChannel ch = null;
try {
    fin = new FileInputStream(f);
    ch = fin.getChannel();
    int size = (int) ch.size();
    MappedByteBuffer buf = ch.map(MapMode.READ_ONLY, 0, size);
    byte[] bytes = new byte[size];
...
ByteBufferreadBytes(final InputStream in, final int length)
read Bytes 
final byte[] buffer = new byte[length];
in.read(buffer);
return ByteBuffer.wrap(buffer).asReadOnlyBuffer().order(ByteOrder.LITTLE_ENDIAN);
ByteBufferreadBytes(final String file)
read Bytes 
final ByteArrayOutputStream dataOut = new ByteArrayOutputStream();
try (RandomAccessFile f = new RandomAccessFile(file, "r"); final FileChannel fChannel = f.getChannel();) {
    fChannel.transferTo(0, fChannel.size(), Channels.newChannel(dataOut));
return ByteBuffer.wrap(dataOut.toByteArray());