WrappedByteBuf.java — netty Source File

Source Code

/*
 * Copyright 2013 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.ByteProcessor;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.StringUtil;

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 java.nio.charset.Charset;

/**
 * Wraps another {@link ByteBuf}.
 *
 * It's important that the {@link #readerIndex()} and {@link #writerIndex()} will not do any adjustments on the
 * indices on the fly because of internal optimizations made by {@link ByteBufUtil#writeAscii(ByteBuf, CharSequence)}
 * and {@link ByteBufUtil#writeUtf8(ByteBuf, CharSequence)}.
 */
public class WrappedByteBuf extends ByteBuf {

    protected final ByteBuf buf;

    protected WrappedByteBuf(ByteBuf buf) {
        this.buf = ObjectUtil.checkNotNull(buf, "buf");
    }

    @Override
    public final boolean hasMemoryAddress() {
        return buf.hasMemoryAddress();
    }

    @Override
    public boolean isContiguous() {
        return buf.isContiguous();
    }

    @Override
    public final long memoryAddress() {
        return buf.memoryAddress();
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