io.netty.handler.codec.ReplayingDecoderByteBuf 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 2012 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.handler.codec;
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 java.nio.charset.Charset;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.SwappedByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.util.ByteProcessor;
import io.netty.util.Signal;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.StringUtil;
/**
* Special {@link ByteBuf} implementation which is used by the {@link ReplayingDecoder}
*/
final class ReplayingDecoderByteBuf extends ByteBuf {
private static final Signal REPLAY = ReplayingDecoder.REPLAY;
private ByteBuf buffer;
private boolean terminated;
private SwappedByteBuf swapped;
@SuppressWarnings("checkstyle:StaticFinalBuffer") // Unpooled.EMPTY_BUFFER is not writeable or readable.
static final ReplayingDecoderByteBuf EMPTY_BUFFER = new ReplayingDecoderByteBuf(Unpooled.EMPTY_BUFFER);
static {
EMPTY_BUFFER.terminate();
}
ReplayingDecoderByteBuf() { }
ReplayingDecoderByteBuf(ByteBuf buffer) {
setCumulation(buffer);
}
void setCumulation(ByteBuf buffer) {
this.buffer = buffer;
}
void terminate() {
terminated = true;
}
@Override
public int capacity() {
if (terminated) {
return buffer.capacity();
} else {
return Integer.MAX_VALUE;
}
}
@Override
public ByteBuf capacity(int newCapacity) {
throw reject();
}
@Override
public int maxCapacity() {
return capacity();
}
@Override
public ByteBufAllocator alloc() {
return buffer.alloc();
}
@Override
public boolean isReadOnly() {
return false;
}
@SuppressWarnings("deprecation")
@Override
public ByteBuf asReadOnly() {
return Unpooled.unmodifiableBuffer(this);
}
@Override
public boolean isDirect() {
return buffer.isDirect();
}
@Override
public boolean hasArray() {
return false;
}
@Override
public byte[] array() {
throw new UnsupportedOperationException();
}
@Override
public int arrayOffset() {
throw new UnsupportedOperationException();
}
@Override
public boolean hasMemoryAddress() {
return false;
}
@Override
public long memoryAddress() {
throw new UnsupportedOperationException();
}
@Override
public ByteBuf clear() {
throw reject();
}
@Override
public boolean equals(Object obj) {
return this == obj;
}
@Override
public int compareTo(ByteBuf buffer) {
throw reject();
}
@Override
public ByteBuf copy() {
throw reject();
}
@Override
public ByteBuf copy(int index, int length) {
checkIndex(index, length);
return buffer.copy(index, length);
}
@Override
public ByteBuf discardReadBytes() {
throw reject();
}
@Override
public ByteBuf ensureWritable(int writableBytes) {
throw reject();
}
@Override
public int ensureWritable(int minWritableBytes, boolean force) {
throw reject();
}
@Override
public ByteBuf duplicate() {
throw reject();
}
@Override
public ByteBuf retainedDuplicate() {
throw reject();
}
@Override
public boolean getBoolean(int index) {
checkIndex(index, 1);
return buffer.getBoolean(index);
}
@Override
public byte getByte(int index) {
checkIndex(index, 1);
return buffer.getByte(index);
}
@Override
public short getUnsignedByte(int index) {
checkIndex(index, 1);
return buffer.getUnsignedByte(index);
}
@Override
public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
checkIndex(index, length);
buffer.getBytes(index, dst, dstIndex, length);
return this;
}
@Override
public ByteBuf getBytes(int index, byte[] dst) {
checkIndex(index, dst.length);
buffer.getBytes(index, dst);
return this;
}
@Override
public ByteBuf getBytes(int index, ByteBuffer dst) {
throw reject();
}
@Override
public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length) {
checkIndex(index, length);
buffer.getBytes(index, dst, dstIndex, length);
return this;
}
@Override
public ByteBuf getBytes(int index, ByteBuf dst, int length) {
throw reject();
}
@Override
public ByteBuf getBytes(int index, ByteBuf dst) {
throw reject();
}
@Override
public int getBytes(int index, GatheringByteChannel out, int length) {
throw reject();
}
@Override
public int getBytes(int index, FileChannel out, long position, int length) {
throw reject();
}
@Override
public ByteBuf getBytes(int index, OutputStream out, int length) {
throw reject();
}
@Override
public int getInt(int index) {
checkIndex(index, 4);
return buffer.getInt(index);
}
@Override
public int getIntLE(int index) {
checkIndex(index, 4);
return buffer.getIntLE(index);
}
@Override
public long getUnsignedInt(int index) {
checkIndex(index, 4);
return buffer.getUnsignedInt(index);
}
@Override
public long getUnsignedIntLE(int index) {
checkIndex(index, 4);
return buffer.getUnsignedIntLE(index);
}
@Override
public long getLong(int index) {
checkIndex(index, 8);
return buffer.getLong(index);
}
@Override
public long getLongLE(int index) {
checkIndex(index, 8);
return buffer.getLongLE(index);
}
@Override
public int getMedium(int index) {
checkIndex(index, 3);
return buffer.getMedium(index);
}
@Override
public int getMediumLE(int index) {
checkIndex(index, 3);
return buffer.getMediumLE(index);
}
@Override
public int getUnsignedMedium(int index) {
checkIndex(index, 3);
return buffer.getUnsignedMedium(index);
}
@Override
public int getUnsignedMediumLE(int index) {
checkIndex(index, 3);
return buffer.getUnsignedMediumLE(index);
}
@Override
public short getShort(int index) {
checkIndex(index, 2);
return buffer.getShort(index);
}
@Override
public short getShortLE(int index) {
checkIndex(index, 2);
return buffer.getShortLE(index);
}
@Override
public int getUnsignedShort(int index) {
checkIndex(index, 2);
return buffer.getUnsignedShort(index);
}
@Override
public int getUnsignedShortLE(int index) {
checkIndex(index, 2);
return buffer.getUnsignedShortLE(index);
}
@Override
public char getChar(int index) {
checkIndex(index, 2);
return buffer.getChar(index);
}
@Override
public float getFloat(int index) {
checkIndex(index, 4);
return buffer.getFloat(index);
}
@Override
public double getDouble(int index) {
checkIndex(index, 8);
return buffer.getDouble(index);
}
@Override
public CharSequence getCharSequence(int index, int length, Charset charset) {
checkIndex(index, length);
return buffer.getCharSequence(index, length, charset);
}
@Override
public int hashCode() {
throw reject();
}
@Override
public int indexOf(int fromIndex, int toIndex, byte value) {
if (fromIndex == toIndex) {
return -1;
}
if (Math.max(fromIndex, toIndex) > buffer.writerIndex()) {
throw REPLAY;
}
return buffer.indexOf(fromIndex, toIndex, value);
}
@Override
public int bytesBefore(byte value) {
int bytes = buffer.bytesBefore(value);
if (bytes < 0) {
throw REPLAY;
}
return bytes;
}
@Override
public int bytesBefore(int length, byte value) {
return bytesBefore(buffer.readerIndex(), length, value);
}
@Override
public int bytesBefore(int index, int length, byte value) {
final int writerIndex = buffer.writerIndex();
if (index >= writerIndex) {
throw REPLAY;
}
if (index <= writerIndex - length) {
return buffer.bytesBefore(index, length, value);
}
int res = buffer.bytesBefore(index, writerIndex - index, value);
if (res < 0) {
throw REPLAY;
} else {
return res;
}
}
@Override
public int forEachByte(ByteProcessor processor) {
int ret = buffer.forEachByte(processor);
if (ret < 0) {
throw REPLAY;
} else {
return ret;
}
}
@Override
public int forEachByte(int index, int length, ByteProcessor processor) {
final int writerIndex = buffer.writerIndex();
if (index >= writerIndex) {
throw REPLAY;
}
if (index <= writerIndex - length) {
return buffer.forEachByte(index, length, processor);
}
int ret = buffer.forEachByte(index, writerIndex - index, processor);
if (ret < 0) {
throw REPLAY;
} else {
return ret;
}
}
@Override
public int forEachByteDesc(ByteProcessor processor) {
if (terminated) {
return buffer.forEachByteDesc(processor);
} else {
throw reject();
}
}
@Override
public int forEachByteDesc(int index, int length, ByteProcessor processor) {
if (index + length > buffer.writerIndex()) {
throw REPLAY;
}
return buffer.forEachByteDesc(index, length, processor);
}
@Override
public ByteBuf markReaderIndex() {
buffer.markReaderIndex();
return this;
}
@Override
public ByteBuf markWriterIndex() {
throw reject();
}
@Override
public ByteOrder order() {
return buffer.order();
}
@Override
public ByteBuf order(ByteOrder endianness) {
if (ObjectUtil.checkNotNull(endianness, "endianness") == order()) {
return this;
}
SwappedByteBuf swapped = this.swapped;
if (swapped == null) {
this.swapped = swapped = new SwappedByteBuf(this);
}
return swapped;
}
@Override
public boolean isReadable() {
return !terminated || buffer.isReadable();
}
@Override
public boolean isReadable(int size) {
return !terminated || buffer.isReadable(size);
}
@Override
public int readableBytes() {
if (terminated) {
return buffer.readableBytes();
} else {
return Integer.MAX_VALUE - buffer.readerIndex();
}
}
@Override
public boolean readBoolean() {
checkReadableBytes(1);
return buffer.readBoolean();
}
@Override
public byte readByte() {
checkReadableBytes(1);
return buffer.readByte();
}
@Override
public short readUnsignedByte() {
checkReadableBytes(1);
return buffer.readUnsignedByte();
}
@Override
public ByteBuf readBytes(byte[] dst, int dstIndex, int length) {
checkReadableBytes(length);
buffer.readBytes(dst, dstIndex, length);
return this;
}
@Override
public ByteBuf readBytes(byte[] dst) {
checkReadableBytes(dst.length);
buffer.readBytes(dst);
return this;
}
@Override
public ByteBuf readBytes(ByteBuffer dst) {
throw reject();
}
@Override
public ByteBuf readBytes(ByteBuf dst, int dstIndex, int length) {
checkReadableBytes(length);
buffer.readBytes(dst, dstIndex, length);
return this;
}
@Override
public ByteBuf readBytes(ByteBuf dst, int length) {
throw reject();
}
@Override
public ByteBuf readBytes(ByteBuf dst) {
checkReadableBytes(dst.writableBytes());
buffer.readBytes(dst);
return this;
}
@Override
public int readBytes(GatheringByteChannel out, int length) {
throw reject();
}
@Override
public int readBytes(FileChannel out, long position, int length) {
throw reject();
}
@Override
public ByteBuf readBytes(int length) {
checkReadableBytes(length);
return buffer.readBytes(length);
}
@Override
public ByteBuf readSlice(int length) {
checkReadableBytes(length);
return buffer.readSlice(length);
}
@Override
public ByteBuf readRetainedSlice(int length) {
checkReadableBytes(length);
return buffer.readRetainedSlice(length);
}
@Override
public ByteBuf readBytes(OutputStream out, int length) {
throw reject();
}
@Override
public int readerIndex() {
return buffer.readerIndex();
}
@Override
public ByteBuf readerIndex(int readerIndex) {
buffer.readerIndex(readerIndex);
return this;
}
@Override
public int readInt() {
checkReadableBytes(4);
return buffer.readInt();
}
@Override
public int readIntLE() {
checkReadableBytes(4);
return buffer.readIntLE();
}
@Override
public long readUnsignedInt() {
checkReadableBytes(4);
return buffer.readUnsignedInt();
}
@Override
public long readUnsignedIntLE() {
checkReadableBytes(4);
return buffer.readUnsignedIntLE();
}
@Override
public long readLong() {
checkReadableBytes(8);
return buffer.readLong();
}
@Override
public long readLongLE() {
checkReadableBytes(8);
return buffer.readLongLE();
}
@Override
public int readMedium() {
checkReadableBytes(3);
return buffer.readMedium();
}
@Override
public int readMediumLE() {
checkReadableBytes(3);
return buffer.readMediumLE();
}
@Override
public int readUnsignedMedium() {
checkReadableBytes(3);
return buffer.readUnsignedMedium();
}
@Override
public int readUnsignedMediumLE() {
checkReadableBytes(3);
return buffer.readUnsignedMediumLE();
}
@Override
public short readShort() {
checkReadableBytes(2);
return buffer.readShort();
}
@Override
public short readShortLE() {
checkReadableBytes(2);
return buffer.readShortLE();
}
@Override
public int readUnsignedShort() {
checkReadableBytes(2);
return buffer.readUnsignedShort();
}
@Override
public int readUnsignedShortLE() {
checkReadableBytes(2);
return buffer.readUnsignedShortLE();
}
@Override
public char readChar() {
checkReadableBytes(2);
return buffer.readChar();
}
@Override
public float readFloat() {
checkReadableBytes(4);
return buffer.readFloat();
}
@Override
public double readDouble() {
checkReadableBytes(8);
return buffer.readDouble();
}
@Override
public CharSequence readCharSequence(int length, Charset charset) {
checkReadableBytes(length);
return buffer.readCharSequence(length, charset);
}
@Override
public ByteBuf resetReaderIndex() {
buffer.resetReaderIndex();
return this;
}
@Override
public ByteBuf resetWriterIndex() {
throw reject();
}
@Override
public ByteBuf setBoolean(int index, boolean value) {
throw reject();
}
@Override
public ByteBuf setByte(int index, int value) {
throw reject();
}
@Override
public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
throw reject();
}
@Override
public ByteBuf setBytes(int index, byte[] src) {
throw reject();
}
@Override
public ByteBuf setBytes(int index, ByteBuffer src) {
throw reject();
}
@Override
public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
throw reject();
}
@Override
public ByteBuf setBytes(int index, ByteBuf src, int length) {
throw reject();
}
@Override
public ByteBuf setBytes(int index, ByteBuf src) {
throw reject();
}
@Override
public int setBytes(int index, InputStream in, int length) {
throw reject();
}
@Override
public ByteBuf setZero(int index, int length) {
throw reject();
}
@Override
public int setBytes(int index, ScatteringByteChannel in, int length) {
throw reject();
}
@Override
public int setBytes(int index, FileChannel in, long position, int length) {
throw reject();
}
@Override
public ByteBuf setIndex(int readerIndex, int writerIndex) {
throw reject();
}
@Override
public ByteBuf setInt(int index, int value) {
throw reject();
}
@Override
public ByteBuf setIntLE(int index, int value) {
throw reject();
}
@Override
public ByteBuf setLong(int index, long value) {
throw reject();
}
@Override
public ByteBuf setLongLE(int index, long value) {
throw reject();
}
@Override
public ByteBuf setMedium(int index, int value) {
throw reject();
}
@Override
public ByteBuf setMediumLE(int index, int value) {
throw reject();
}
@Override
public ByteBuf setShort(int index, int value) {
throw reject();
}
@Override
public ByteBuf setShortLE(int index, int value) {
throw reject();
}
@Override
public ByteBuf setChar(int index, int value) {
throw reject();
}
@Override
public ByteBuf setFloat(int index, float value) {
throw reject();
}
@Override
public ByteBuf setDouble(int index, double value) {
throw reject();
}
@Override
public ByteBuf skipBytes(int length) {
checkReadableBytes(length);
buffer.skipBytes(length);
return this;
}
@Override
public ByteBuf slice() {
throw reject();
}
@Override
public ByteBuf retainedSlice() {
throw reject();
}
@Override
public ByteBuf slice(int index, int length) {
checkIndex(index, length);
return buffer.slice(index, length);
}
@Override
public ByteBuf retainedSlice(int index, int length) {
checkIndex(index, length);
return buffer.retainedSlice(index, length);
}
@Override
public int nioBufferCount() {
return buffer.nioBufferCount();
}
@Override
public ByteBuffer nioBuffer() {
throw reject();
}
@Override
public ByteBuffer nioBuffer(int index, int length) {
checkIndex(index, length);
return buffer.nioBuffer(index, length);
}
@Override
public ByteBuffer[] nioBuffers() {
throw reject();
}
@Override
public ByteBuffer[] nioBuffers(int index, int length) {
checkIndex(index, length);
return buffer.nioBuffers(index, length);
}
@Override
public ByteBuffer internalNioBuffer(int index, int length) {
checkIndex(index, length);
return buffer.internalNioBuffer(index, length);
}
@Override
public String toString(int index, int length, Charset charset) {
checkIndex(index, length);
return buffer.toString(index, length, charset);
}
@Override
public String toString(Charset charsetName) {
throw reject();
}
@Override
public String toString() {
return StringUtil.simpleClassName(this) + '(' +
"ridx=" +
readerIndex() +
", " +
"widx=" +
writerIndex() +
')';
}
@Override
public boolean isWritable() {
return false;
}
@Override
public boolean isWritable(int size) {
return false;
}
@Override
public int writableBytes() {
return 0;
}
@Override
public int maxWritableBytes() {
return 0;
}
@Override
public ByteBuf writeBoolean(boolean value) {
throw reject();
}
@Override
public ByteBuf writeByte(int value) {
throw reject();
}
@Override
public ByteBuf writeBytes(byte[] src, int srcIndex, int length) {
throw reject();
}
@Override
public ByteBuf writeBytes(byte[] src) {
throw reject();
}
@Override
public ByteBuf writeBytes(ByteBuffer src) {
throw reject();
}
@Override
public ByteBuf writeBytes(ByteBuf src, int srcIndex, int length) {
throw reject();
}
@Override
public ByteBuf writeBytes(ByteBuf src, int length) {
throw reject();
}
@Override
public ByteBuf writeBytes(ByteBuf src) {
throw reject();
}
@Override
public int writeBytes(InputStream in, int length) {
throw reject();
}
@Override
public int writeBytes(ScatteringByteChannel in, int length) {
throw reject();
}
@Override
public int writeBytes(FileChannel in, long position, int length) {
throw reject();
}
@Override
public ByteBuf writeInt(int value) {
throw reject();
}
@Override
public ByteBuf writeIntLE(int value) {
throw reject();
}
@Override
public ByteBuf writeLong(long value) {
throw reject();
}
@Override
public ByteBuf writeLongLE(long value) {
throw reject();
}
@Override
public ByteBuf writeMedium(int value) {
throw reject();
}
@Override
public ByteBuf writeMediumLE(int value) {
throw reject();
}
@Override
public ByteBuf writeZero(int length) {
throw reject();
}
@Override
public int writerIndex() {
return buffer.writerIndex();
}
@Override
public ByteBuf writerIndex(int writerIndex) {
throw reject();
}
@Override
public ByteBuf writeShort(int value) {
throw reject();
}
@Override
public ByteBuf writeShortLE(int value) {
throw reject();
}
@Override
public ByteBuf writeChar(int value) {
throw reject();
}
@Override
public ByteBuf writeFloat(float value) {
throw reject();
}
@Override
public ByteBuf writeDouble(double value) {
throw reject();
}
@Override
public int setCharSequence(int index, CharSequence sequence, Charset charset) {
throw reject();
}
@Override
public int writeCharSequence(CharSequence sequence, Charset charset) {
throw reject();
}
private void checkIndex(int index, int length) {
if (index + length > buffer.writerIndex()) {
throw REPLAY;
}
}
private void checkReadableBytes(int readableBytes) {
if (buffer.readableBytes() < readableBytes) {
throw REPLAY;
}
}
@Override
public ByteBuf discardSomeReadBytes() {
throw reject();
}
@Override
public int refCnt() {
return buffer.refCnt();
}
@Override
public ByteBuf retain() {
throw reject();
}
@Override
public ByteBuf retain(int increment) {
throw reject();
}
@Override
public ByteBuf touch() {
buffer.touch();
return this;
}
@Override
public ByteBuf touch(Object hint) {
buffer.touch(hint);
return this;
}
@Override
public boolean release() {
throw reject();
}
@Override
public boolean release(int decrement) {
throw reject();
}
@Override
public ByteBuf unwrap() {
throw reject();
}
private static UnsupportedOperationException reject() {
return new UnsupportedOperationException("not a replayable operation");
}
}