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io.hyperfoil.core.steps.ReadonlyWrappingByteBuf Maven / Gradle / Ivy
package io.hyperfoil.core.steps;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.channels.FileChannel;
import java.nio.channels.GatheringByteChannel;
import java.nio.channels.ScatteringByteChannel;
import io.netty.buffer.AbstractReferenceCountedByteBuf;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.util.internal.EmptyArrays;
import io.netty.util.internal.PlatformDependent;
// TODO: It would be nice to pool instances returned by slice()/retainedSlice
public class ReadonlyWrappingByteBuf extends AbstractReferenceCountedByteBuf {
private byte[] array;
protected ReadonlyWrappingByteBuf() {
super(0);
}
public ReadonlyWrappingByteBuf wrap(byte[] array) {
this.array = array;
writerIndex(array.length);
maxCapacity(array.length);
return this;
}
@Override
public boolean isReadOnly() {
return true;
}
@Override
protected byte _getByte(int index) {
return array[index];
}
@Override
protected short _getShort(int index) {
return (short) (array[index] << 8 | array[index + 1] & 0xFF);
}
@Override
protected short _getShortLE(int index) {
throw new UnsupportedOperationException();
}
@Override
protected int _getUnsignedMedium(int index) {
throw new UnsupportedOperationException();
}
@Override
protected int _getUnsignedMediumLE(int index) {
throw new UnsupportedOperationException();
}
@Override
protected int _getInt(int index) {
return (array[index] & 0xff) << 24 |
(array[index + 1] & 0xff) << 16 |
(array[index + 2] & 0xff) << 8 |
array[index + 3] & 0xff;
}
@Override
protected int _getIntLE(int index) {
throw new UnsupportedOperationException();
}
@Override
protected long _getLong(int index) {
return ((long) array[index] & 0xff) << 56 |
((long) array[index + 1] & 0xff) << 48 |
((long) array[index + 2] & 0xff) << 40 |
((long) array[index + 3] & 0xff) << 32 |
((long) array[index + 4] & 0xff) << 24 |
((long) array[index + 5] & 0xff) << 16 |
((long) array[index + 6] & 0xff) << 8 |
(long) array[index + 7] & 0xff;
}
@Override
protected long _getLongLE(int index) {
throw new UnsupportedOperationException();
}
@Override
protected void _setByte(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setShort(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setShortLE(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setMedium(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setMediumLE(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setInt(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setIntLE(int index, int value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setLong(int index, long value) {
throw new UnsupportedOperationException();
}
@Override
protected void _setLongLE(int index, long value) {
throw new UnsupportedOperationException();
}
@Override
public int capacity() {
return array.length;
}
@Override
public ByteBuf capacity(int newCapacity) {
throw new UnsupportedOperationException();
}
@Override
public ByteBufAllocator alloc() {
return PooledByteBufAllocator.DEFAULT;
}
@SuppressWarnings("deprecation")
@Override
public ByteOrder order() {
return ByteOrder.BIG_ENDIAN;
}
@Override
public ByteBuf unwrap() {
return null;
}
@Override
public boolean isDirect() {
return false;
}
@Override
public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length) {
checkDstIndex(index, length, dstIndex, dst.capacity());
if (dst.hasMemoryAddress()) {
PlatformDependent.copyMemory(array, index, dst.memoryAddress() + dstIndex, length);
} else if (dst.hasArray()) {
getBytes(index, dst.array(), dst.arrayOffset() + dstIndex, length);
} else {
dst.setBytes(dstIndex, array, index, length);
}
return this;
}
@Override
public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
System.arraycopy(array, index, dst, dstIndex, length);
return this;
}
@Override
public ByteBuf getBytes(int index, ByteBuffer dst) {
dst.put(array, index, dst.remaining());
return this;
}
@Override
public ByteBuf getBytes(int index, OutputStream out, int length) throws IOException {
out.write(array, index, length);
return this;
}
@Override
public int getBytes(int index, GatheringByteChannel out, int length) throws IOException {
ByteBuffer tmpBuf = ByteBuffer.wrap(array);
return out.write((ByteBuffer) tmpBuf.clear().position(index).limit(index + length));
}
@Override
public int getBytes(int index, FileChannel out, long position, int length) throws IOException {
ByteBuffer tmpBuf = ByteBuffer.wrap(array);
return out.write((ByteBuffer) tmpBuf.clear().position(index).limit(index + length), position);
}
@Override
public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
throw new UnsupportedOperationException();
}
@Override
public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
throw new UnsupportedOperationException();
}
@Override
public ByteBuf setBytes(int index, ByteBuffer src) {
throw new UnsupportedOperationException();
}
@Override
public int setBytes(int index, InputStream in, int length) {
throw new UnsupportedOperationException();
}
@Override
public int setBytes(int index, ScatteringByteChannel in, int length) {
throw new UnsupportedOperationException();
}
@Override
public int setBytes(int index, FileChannel in, long position, int length) {
throw new UnsupportedOperationException();
}
@Override
public ByteBuf copy(int index, int length) {
throw new UnsupportedOperationException();
}
@Override
public int nioBufferCount() {
return 0;
}
@Override
public ByteBuffer nioBuffer(int index, int length) {
if (index < 0 || length < 0 || index + length > array.length) {
throw new IllegalArgumentException();
}
return ByteBuffer.wrap(array, index, length);
}
@Override
public ByteBuffer internalNioBuffer(int index, int length) {
return null;
}
@Override
public ByteBuffer[] nioBuffers(int index, int length) {
throw new UnsupportedOperationException();
}
@Override
public boolean hasArray() {
return true;
}
@Override
public byte[] array() {
return array;
}
@Override
public int arrayOffset() {
return 0;
}
@Override
public boolean hasMemoryAddress() {
return false;
}
@Override
public long memoryAddress() {
return 0;
}
@Override
protected void deallocate() {
array = EmptyArrays.EMPTY_BYTES;
}
}
