io.grpc.internal.ForwardingReadableBuffer Maven / Gradle / Ivy
/*
* 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}.
*
* 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();
}
}