| /* |
| * Copyright 2014 The gRPC Authors |
| * |
| * Licensed 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 |
| * |
| * http://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.grpc.internal; |
| |
| import com.google.common.base.MoreObjects; |
| 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 certain 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 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(); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(this).add("delegate", buf).toString(); |
| } |
| } |