441 lines
10 KiB
Java
441 lines
10 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.net5.buffer;
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import io.net5.util.ByteProcessor;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.ReadOnlyBufferException;
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import java.nio.channels.FileChannel;
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import java.nio.channels.GatheringByteChannel;
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import java.nio.channels.ScatteringByteChannel;
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/**
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* A derived buffer which forbids any write requests to its parent. It is
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* recommended to use {@link Unpooled#unmodifiableBuffer(ByteBuf)}
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* instead of calling the constructor explicitly.
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*
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* @deprecated Do not use.
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*/
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@Deprecated
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public class ReadOnlyByteBuf extends AbstractDerivedByteBuf {
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private final ByteBuf buffer;
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public ReadOnlyByteBuf(ByteBuf buffer) {
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super(buffer.maxCapacity());
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if (buffer instanceof ReadOnlyByteBuf || buffer instanceof DuplicatedByteBuf) {
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this.buffer = buffer.unwrap();
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} else {
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this.buffer = buffer;
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}
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setIndex(buffer.readerIndex(), buffer.writerIndex());
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}
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@Override
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public boolean isReadOnly() {
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return true;
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}
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@Override
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public boolean isWritable() {
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return false;
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}
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@Override
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public boolean isWritable(int numBytes) {
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return false;
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}
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@Override
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public int ensureWritable(int minWritableBytes, boolean force) {
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return 1;
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}
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@Override
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public ByteBuf ensureWritable(int minWritableBytes) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public int writableBytes() {
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return 0;
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}
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@Override
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public int maxWritableBytes() {
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return 0;
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}
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@Override
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public ByteBuf unwrap() {
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return buffer;
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}
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@Override
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public ByteBufAllocator alloc() {
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return unwrap().alloc();
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}
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@Override
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@Deprecated
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public ByteOrder order() {
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return unwrap().order();
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}
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@Override
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public boolean isDirect() {
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return unwrap().isDirect();
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}
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@Override
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public boolean hasArray() {
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return false;
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}
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@Override
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public byte[] array() {
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throw new ReadOnlyBufferException();
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}
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@Override
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public int arrayOffset() {
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throw new ReadOnlyBufferException();
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}
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@Override
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public boolean hasMemoryAddress() {
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return unwrap().hasMemoryAddress();
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}
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@Override
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public long memoryAddress() {
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return unwrap().memoryAddress();
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}
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@Override
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public ByteBuf discardReadBytes() {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setBytes(int index, ByteBuffer src) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setByte(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setByte(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setShort(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setShort(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setShortLE(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setShortLE(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setMedium(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setMedium(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setMediumLE(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setMediumLE(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setInt(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setInt(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setIntLE(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setIntLE(int index, int value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setLong(int index, long value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setLong(int index, long value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf setLongLE(int index, long value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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protected void _setLongLE(int index, long value) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public int setBytes(int index, InputStream in, int length) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public int setBytes(int index, ScatteringByteChannel in, int length) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public int setBytes(int index, FileChannel in, long position, int length) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public int getBytes(int index, GatheringByteChannel out, int length)
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throws IOException {
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return unwrap().getBytes(index, out, length);
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}
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@Override
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public int getBytes(int index, FileChannel out, long position, int length)
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throws IOException {
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return unwrap().getBytes(index, out, position, length);
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}
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@Override
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public ByteBuf getBytes(int index, OutputStream out, int length)
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throws IOException {
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unwrap().getBytes(index, out, length);
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return this;
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}
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@Override
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public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
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unwrap().getBytes(index, dst, dstIndex, length);
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return this;
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}
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@Override
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public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length) {
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unwrap().getBytes(index, dst, dstIndex, length);
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return this;
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}
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@Override
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public ByteBuf getBytes(int index, ByteBuffer dst) {
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unwrap().getBytes(index, dst);
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return this;
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}
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@Override
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public ByteBuf duplicate() {
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return new ReadOnlyByteBuf(this);
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}
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@Override
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public ByteBuf copy(int index, int length) {
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return unwrap().copy(index, length);
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}
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@Override
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public ByteBuf slice(int index, int length) {
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return Unpooled.unmodifiableBuffer(unwrap().slice(index, length));
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}
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@Override
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public byte getByte(int index) {
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return unwrap().getByte(index);
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}
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@Override
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protected byte _getByte(int index) {
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return unwrap().getByte(index);
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}
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@Override
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public short getShort(int index) {
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return unwrap().getShort(index);
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}
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@Override
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protected short _getShort(int index) {
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return unwrap().getShort(index);
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}
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@Override
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public short getShortLE(int index) {
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return unwrap().getShortLE(index);
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}
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@Override
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protected short _getShortLE(int index) {
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return unwrap().getShortLE(index);
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}
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@Override
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public int getUnsignedMedium(int index) {
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return unwrap().getUnsignedMedium(index);
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}
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@Override
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protected int _getUnsignedMedium(int index) {
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return unwrap().getUnsignedMedium(index);
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}
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@Override
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public int getUnsignedMediumLE(int index) {
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return unwrap().getUnsignedMediumLE(index);
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}
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@Override
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protected int _getUnsignedMediumLE(int index) {
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return unwrap().getUnsignedMediumLE(index);
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}
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@Override
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public int getInt(int index) {
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return unwrap().getInt(index);
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}
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@Override
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protected int _getInt(int index) {
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return unwrap().getInt(index);
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}
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@Override
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public int getIntLE(int index) {
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return unwrap().getIntLE(index);
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}
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@Override
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protected int _getIntLE(int index) {
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return unwrap().getIntLE(index);
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}
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@Override
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public long getLong(int index) {
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return unwrap().getLong(index);
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}
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@Override
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protected long _getLong(int index) {
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return unwrap().getLong(index);
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}
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@Override
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public long getLongLE(int index) {
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return unwrap().getLongLE(index);
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}
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@Override
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protected long _getLongLE(int index) {
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return unwrap().getLongLE(index);
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}
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@Override
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public int nioBufferCount() {
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return unwrap().nioBufferCount();
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}
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@Override
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public ByteBuffer nioBuffer(int index, int length) {
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return unwrap().nioBuffer(index, length).asReadOnlyBuffer();
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}
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@Override
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public ByteBuffer[] nioBuffers(int index, int length) {
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return unwrap().nioBuffers(index, length);
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}
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@Override
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public int forEachByte(int index, int length, ByteProcessor processor) {
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return unwrap().forEachByte(index, length, processor);
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}
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@Override
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public int forEachByteDesc(int index, int length, ByteProcessor processor) {
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return unwrap().forEachByteDesc(index, length, processor);
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}
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@Override
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public int capacity() {
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return unwrap().capacity();
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}
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@Override
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public ByteBuf capacity(int newCapacity) {
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throw new ReadOnlyBufferException();
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}
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@Override
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public ByteBuf asReadOnly() {
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return this;
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}
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}
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