| /* |
| * Copyright 2014, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package io.grpc.internal; |
| |
| import com.google.common.base.Preconditions; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * Base class for a wrapper around another {@link ReadableBuffer}. |
| * |
| * <p>This class just passes every operation through to the underlying buffer. Subclasses may |
| * override methods to intercept concertain operations. |
| */ |
| public abstract class ForwardingReadableBuffer implements ReadableBuffer { |
| |
| private final ReadableBuffer buf; |
| |
| /** |
| * Constructor. |
| * |
| * @param buf the underlying buffer |
| */ |
| public ForwardingReadableBuffer(ReadableBuffer buf) { |
| this.buf = Preconditions.checkNotNull(buf, "buf"); |
| } |
| |
| @Override |
| public int readableBytes() { |
| return buf.readableBytes(); |
| } |
| |
| @Override |
| public int readUnsignedByte() { |
| return buf.readUnsignedByte(); |
| } |
| |
| @Override |
| public int readUnsignedMedium() { |
| return buf.readUnsignedMedium(); |
| } |
| |
| @Override |
| public int readUnsignedShort() { |
| return buf.readUnsignedShort(); |
| } |
| |
| @Override |
| public int readInt() { |
| return buf.readInt(); |
| } |
| |
| @Override |
| public void skipBytes(int length) { |
| buf.skipBytes(length); |
| } |
| |
| @Override |
| public void readBytes(byte[] dest, int destOffset, int length) { |
| buf.readBytes(dest, destOffset, length); |
| } |
| |
| @Override |
| public void readBytes(ByteBuffer dest) { |
| buf.readBytes(dest); |
| } |
| |
| @Override |
| public void readBytes(OutputStream dest, int length) throws IOException { |
| buf.readBytes(dest, length); |
| } |
| |
| @Override |
| public ReadableBuffer readBytes(int length) { |
| return buf.readBytes(length); |
| } |
| |
| @Override |
| public boolean hasArray() { |
| return buf.hasArray(); |
| } |
| |
| @Override |
| public byte[] array() { |
| return buf.array(); |
| } |
| |
| @Override |
| public int arrayOffset() { |
| return buf.arrayOffset(); |
| } |
| |
| @Override |
| public void close() { |
| buf.close(); |
| } |
| } |