io.netty.buffer.AbstractUnsafeSwappedByteBuf Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2015 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.buffer;
import io.netty.util.internal.PlatformDependent;
import java.nio.ByteOrder;
import static io.netty.util.internal.PlatformDependent.BIG_ENDIAN_NATIVE_ORDER;
/**
* Special {@link SwappedByteBuf} for {@link ByteBuf}s that is using unsafe.
*/
abstract class AbstractUnsafeSwappedByteBuf extends SwappedByteBuf {
private final boolean nativeByteOrder;
private final AbstractByteBuf wrapped;
AbstractUnsafeSwappedByteBuf(AbstractByteBuf buf) {
super(buf);
assert PlatformDependent.isUnaligned();
wrapped = buf;
nativeByteOrder = BIG_ENDIAN_NATIVE_ORDER == (order() == ByteOrder.BIG_ENDIAN);
}
@Override
public final long getLong(int index) {
wrapped.checkIndex(index, 8);
long v = _getLong(wrapped, index);
return nativeByteOrder ? v : Long.reverseBytes(v);
}
@Override
public final float getFloat(int index) {
return Float.intBitsToFloat(getInt(index));
}
@Override
public final double getDouble(int index) {
return Double.longBitsToDouble(getLong(index));
}
@Override
public final char getChar(int index) {
return (char) getShort(index);
}
@Override
public final long getUnsignedInt(int index) {
return getInt(index) & 0xFFFFFFFFL;
}
@Override
public final int getInt(int index) {
wrapped.checkIndex(index, 4);
int v = _getInt(wrapped, index);
return nativeByteOrder ? v : Integer.reverseBytes(v);
}
@Override
public final int getUnsignedShort(int index) {
return getShort(index) & 0xFFFF;
}
@Override
public final short getShort(int index) {
wrapped.checkIndex(index, 2);
short v = _getShort(wrapped, index);
return nativeByteOrder ? v : Short.reverseBytes(v);
}
@Override
public final ByteBuf setShort(int index, int value) {
wrapped.checkIndex(index, 2);
_setShort(wrapped, index, nativeByteOrder ? (short) value : Short.reverseBytes((short) value));
return this;
}
@Override
public final ByteBuf setInt(int index, int value) {
wrapped.checkIndex(index, 4);
_setInt(wrapped, index, nativeByteOrder ? value : Integer.reverseBytes(value));
return this;
}
@Override
public final ByteBuf setLong(int index, long value) {
wrapped.checkIndex(index, 8);
_setLong(wrapped, index, nativeByteOrder ? value : Long.reverseBytes(value));
return this;
}
@Override
public final ByteBuf setChar(int index, int value) {
setShort(index, value);
return this;
}
@Override
public final ByteBuf setFloat(int index, float value) {
setInt(index, Float.floatToRawIntBits(value));
return this;
}
@Override
public final ByteBuf setDouble(int index, double value) {
setLong(index, Double.doubleToRawLongBits(value));
return this;
}
@Override
public final ByteBuf writeShort(int value) {
wrapped.ensureWritable0(2);
_setShort(wrapped, wrapped.writerIndex, nativeByteOrder ? (short) value : Short.reverseBytes((short) value));
wrapped.writerIndex += 2;
return this;
}
@Override
public final ByteBuf writeInt(int value) {
wrapped.ensureWritable0(4);
_setInt(wrapped, wrapped.writerIndex, nativeByteOrder ? value : Integer.reverseBytes(value));
wrapped.writerIndex += 4;
return this;
}
@Override
public final ByteBuf writeLong(long value) {
wrapped.ensureWritable0(8);
_setLong(wrapped, wrapped.writerIndex, nativeByteOrder ? value : Long.reverseBytes(value));
wrapped.writerIndex += 8;
return this;
}
@Override
public final ByteBuf writeChar(int value) {
writeShort(value);
return this;
}
@Override
public final ByteBuf writeFloat(float value) {
writeInt(Float.floatToRawIntBits(value));
return this;
}
@Override
public final ByteBuf writeDouble(double value) {
writeLong(Double.doubleToRawLongBits(value));
return this;
}
protected abstract short _getShort(AbstractByteBuf wrapped, int index);
protected abstract int _getInt(AbstractByteBuf wrapped, int index);
protected abstract long _getLong(AbstractByteBuf wrapped, int index);
protected abstract void _setShort(AbstractByteBuf wrapped, int index, short value);
protected abstract void _setInt(AbstractByteBuf wrapped, int index, int value);
protected abstract void _setLong(AbstractByteBuf wrapped, int index, long value);
}