public UncheckedNativeBytes(@NotNull Bytes<Underlying> underlyingBytes)
throws IllegalStateException {
underlyingBytes.reserve();
this.bytesStore = (NativeBytesStore<Underlying>) underlyingBytes.bytesStore();
assert bytesStore.start() == 0;
writePosition = underlyingBytes.writePosition();
writeLimit = underlyingBytes.writeLimit();
readPosition = underlyingBytes.readPosition();
capacity = bytesStore.capacity();
}
public void write(long position, @NotNull CharSequence str, int offset, int length)
throws BufferOverflowException, IllegalArgumentException, IORuntimeException {
// todo optimise
if (str instanceof String) {
char[] chars = ((String) str).toCharArray();
ensureCapacity(position + length);
NativeBytesStore nbs = (NativeBytesStore) bytesStore;
nbs.write8bit(position, chars, offset, length);
} else {
throw new UnsupportedOperationException();
}
}
@Override
@ForceInline
public boolean compareAndSwapLong(long offset, long expected, long value)
throws BufferOverflowException {
writeCheckOffset(offset, 8);
return bytesStore.compareAndSwapLong(offset, expected, value);
}
@Override
@ForceInline
public void write(long offsetInRDO, ByteBuffer bytes, int offset, int length)
throws BufferOverflowException {
writeCheckOffset(offsetInRDO, length);
bytesStore.write(offsetInRDO, bytes, offset, length);
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeOrderedInt(long offset, int i) throws BufferOverflowException {
writeCheckOffset(offset, 4);
bytesStore.writeOrderedInt(offset, i);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeDouble(long offset, double d) throws BufferOverflowException {
writeCheckOffset(offset, 8);
bytesStore.writeDouble(offset, d);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> prewriteLong(long i64) {
long offset = prewriteOffsetPositionMoved(8);
bytesStore.writeLong(offset, i64);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeFloat(float f) {
long offset = writeOffsetPositionMoved(4);
bytesStore.writeFloat(offset, f);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> prewriteInt(int i) {
long offset = prewriteOffsetPositionMoved(4);
bytesStore.writeInt(offset, i);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> prewrite(byte[] bytes) {
long offsetInRDO = prewriteOffsetPositionMoved(bytes.length);
bytesStore.write(offsetInRDO, bytes);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeOrderedLong(long i) {
long offset = writeOffsetPositionMoved(8);
bytesStore.writeOrderedLong(offset, i);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> prewriteShort(short i16) {
long offset = prewriteOffsetPositionMoved(2);
bytesStore.writeShort(offset, i16);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeVolatileLong(long offset, long i64) throws BufferOverflowException {
writeCheckOffset(offset, 8);
bytesStore.writeVolatileLong(offset, i64);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeDouble(double d) {
long offset = writeOffsetPositionMoved(8);
bytesStore.writeDouble(offset, d);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> write(byte[] bytes, int offset, int length) {
long offsetInRDO = writeOffsetPositionMoved(length);
bytesStore.write(offsetInRDO, bytes, offset, length);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> write(long offsetInRDO, RandomDataInput bytes, long offset, long length)
throws IORuntimeException, BufferUnderflowException, BufferOverflowException {
writeCheckOffset(offsetInRDO, length);
bytesStore.write(offsetInRDO, bytes, offset, length);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> write(long offsetInRDO, byte[] bytes, int offset, int length)
throws BufferOverflowException {
writeCheckOffset(offsetInRDO, length);
bytesStore.write(offsetInRDO, bytes, offset, length);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> writeVolatileShort(long offset, short i16)
throws BufferOverflowException {
writeCheckOffset(offset, 2);
bytesStore.writeVolatileShort(offset, i16);
return this;
}
@NotNull
@Override
@ForceInline
public Bytes<Underlying> write(@NotNull ByteBuffer buffer) {
bytesStore.write(writePosition, buffer, buffer.position(), buffer.limit());
writePosition += buffer.remaining();
assert writePosition <= writeLimit();
return this;
}
@Override
@ForceInline
public int peekUnsignedByte() {
try {
return readRemaining() > 0 ? bytesStore.readUnsignedByte(readPosition) : -1;
} catch (BufferUnderflowException | IORuntimeException e) {
return -1;
}
}
@Override
public boolean equalBytes(BytesStore bytesStore, long length)
throws BufferUnderflowException, IORuntimeException {
if (this.bytesStore instanceof NativeBytesStore
&& bytesStore instanceof VanillaBytes
&& bytesStore.bytesStore() instanceof NativeBytesStore) {
VanillaBytes b2 = (VanillaBytes) bytesStore;
NativeBytesStore nbs0 = (NativeBytesStore) this.bytesStore;
NativeBytesStore nbs2 = (NativeBytesStore) b2.bytesStore();
long i = 0;
for (; i < length - 7; i++) {
long addr0 = nbs0.address + readPosition() - nbs0.start() + i;
long addr2 = nbs2.address + b2.readPosition() - nbs2.start() + i;
long l0 = nbs0.memory.readLong(addr0);
long l2 = nbs2.memory.readLong(addr2);
if (l0 != l2) return false;
}
for (; i < length; i++) {
long offset2 = readPosition() + i - nbs0.start();
long offset21 = b2.readPosition() + i - nbs2.start();
byte b0 = nbs0.memory.readByte(nbs0.address + offset2);
byte b1 = nbs2.memory.readByte(nbs2.address + offset21);
if (b0 != b1) return false;
}
return true;
} else {
return super.equalBytes(bytesStore, length);
}
}
@Override
public boolean isEqual(String s) {
if (s == null || s.length() != readRemaining()) return false;
char[] chars = StringUtils.extractChars(s);
if (bytesStore instanceof NativeBytesStore) {
NativeBytesStore bs = (NativeBytesStore) this.bytesStore;
long address = bs.address + bs.translate(readPosition);
Memory memory = bs.memory;
for (int i = 0; i < chars.length; i++) {
int b = memory.readByte(address + i) & 0xFF;
if (b != chars[i]) return false;
}
} else {
try {
for (int i = 0; i < chars.length; i++) {
int b = bytesStore.readByte(readPosition + i) & 0xFF;
if (b != chars[i]) return false;
}
} catch (IORuntimeException e) {
throw new AssertionError(e);
}
}
return true;
}
@NotNull
public Bytes<Underlying> append8bit(@NotNull CharSequence cs)
throws BufferOverflowException, BufferUnderflowException, IORuntimeException {
if (cs instanceof BytesStore) {
return write((BytesStore) cs);
}
int length = cs.length();
long offset = writeOffsetPositionMoved(length);
long address = bytesStore.address(offset);
Memory memory = bytesStore.memory;
assert memory != null;
for (int i = 0; i < length; i++) {
char c = cs.charAt(i);
if (c > 255) c = '?';
memory.writeByte(address + i, (byte) c);
}
return this;
}
@Test
public void testCompareUTF() {
NativeBytesStore<Void> bs = NativeBytesStore.nativeStore(32);
bs.writeUtf8(0, "test");
assertTrue(BytesInternal.compareUtf8(bs, 0, "test"));
assertFalse(BytesInternal.compareUtf8(bs, 0, null));
bs.writeUtf8(0, null);
assertTrue(BytesInternal.compareUtf8(bs, 0, null));
assertFalse(BytesInternal.compareUtf8(bs, 0, "test"));
bs.writeUtf8(1, "£€");
StringBuilder sb = new StringBuilder();
bs.readUtf8(1, sb);
assertEquals("£€", sb.toString());
assertTrue(BytesInternal.compareUtf8(bs, 1, "£€"));
assertFalse(BytesInternal.compareUtf8(bs, 1, "£"));
assertFalse(BytesInternal.compareUtf8(bs, 1, "£€$"));
}
/** @return an elastic wrapper for a direct ByteBuffer which will be resized as required. */
static Bytes<ByteBuffer> elasticByteBuffer() {
return NativeBytesStore.elasticByteBuffer().bytesForWrite();
}
/**
* Allocate a fixed size buffer read for writing.
*
* @param capacity minimum to allocate
* @return a new Bytes ready for writing.
*/
static VanillaBytes<Void> allocateDirect(long capacity) throws IllegalArgumentException {
return NativeBytesStore.nativeStoreWithFixedCapacity(capacity).bytesForWrite();
}
@Override
@ForceInline
public void nativeWrite(long address, long position, long size) {
bytesStore.nativeWrite(address, position, size);
}
@Override
@ForceInline
public void nativeRead(long position, long address, long size) {
bytesStore.nativeRead(position, address, size);
}
@Override
@ForceInline
public void nativeWrite(long address, long size) {
bytesStore.nativeWrite(address, writePosition(), size);
writeSkip(size);
}
@Override
@ForceInline
public void nativeRead(long address, long size) {
bytesStore.nativeRead(readPosition(), address, size);
readSkip(size);
}