Java Utililty Methods ByteBuffer Save

List of utility methods to do ByteBuffer Save

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ByteBuffer Save

Description

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

Method

void save(Path path, ByteBuffer bb)
Writes the remaining bytes of a byte buffer to the given file.

try (FileChannel fc = FileChannel.open(path, WRITE, CREATE)) {
 fc.truncate(bb.remaining());
 fc.write(bb);

void saveAsBMP(String filename, ByteBuffer pixel_data, int width, int height)
save As BMP

long before = System.currentTimeMillis();
int pad = 4 - (width * 3) % 4;
if (pad == 4)
 pad = 0;
int size = (width * 3 + pad) * height + 54;
ByteBuffer buffer = ByteBuffer.allocate(size);
buffer.put((byte) 0x42); 
buffer.put((byte) 0x4D); 
...

void saveAsFile(File targetFile, ByteBuffer bb)
save As File

FileOutputStream fos = new FileOutputStream(targetFile);
try {
 FileChannel wChannel = fos.getChannel();
 while (bb.hasRemaining()) {
 wChannel.write(bb);
 wChannel.close();
} finally {
...

File saveAsTempFile(ByteBuffer byteBuffer, String extension)
Saves the ByteBuffer as a temporary file in the default location

final File tempFile = File.createTempFile("tmp", extension);
try (FileOutputStream os = new FileOutputStream(tempFile)) {
 final FileChannel channel = os.getChannel();
 channel.write(byteBuffer);
 channel.force(true);
return tempFile;

void saveAsTGA(String filename, ByteBuffer pixel_data, int width, int height)
save As TGA

long before = System.currentTimeMillis();
try (FileOutputStream fout = new FileOutputStream(filename + ".tga")) {
 fout.write(0); 
 fout.write(0); 
 fout.write(2); 
 fout.write(0); 
 fout.write(0); 
 fout.write(0); 
...

String saveBytesBufferToFile(ByteBuffer buf, String filename)
save Bytes Buffer To File

return saveBytesBufferToFile(buf, new File(filename));

void savePageBitMask(ByteBuffer buffer, BitSet freePagesBitSet)
save Page Bit Mask

buffer.position(Integer.BYTES);
buffer.put(freePagesBitSet.toByteArray());

void saveStruct(ByteBuffer o, String[] struct, Object instance)
save Struct

try {
 Class instClass = instance.getClass();
 for (String s : struct) {
 String[] args = s.split(" ");
 if (args[0].equals("size")) {
 } else if (args[0].equals("data")) {
 o.put(Long.decode(args[1]).byteValue());
 } else if (args[0].equals("skip")) {
...