org.springframework.core.io.buffer.DataBufferWrapper Maven / Gradle / Ivy
/*
* Copyright 2002-2019 the original author or 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
*
* 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 org.springframework.core.io.buffer;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.function.IntPredicate;
import org.springframework.util.Assert;
/**
* Provides a convenient implementation of the {@link DataBuffer} interface
* that can be overridden to adapt the delegate.
*
* These methods default to calling through to the wrapped delegate object.
*
* @author Arjen Poutsma
* @since 5.2
*/
public class DataBufferWrapper implements DataBuffer {
private final DataBuffer delegate;
/**
* Create a new {@code DataBufferWrapper} that wraps the given buffer.
* @param delegate the buffer to wrap
*/
public DataBufferWrapper(DataBuffer delegate) {
Assert.notNull(delegate, "Delegate must not be null");
this.delegate = delegate;
}
/**
* Return the wrapped delegate.
*/
public DataBuffer dataBuffer() {
return this.delegate;
}
@Override
public DataBufferFactory factory() {
return this.delegate.factory();
}
@Override
public int indexOf(IntPredicate predicate, int fromIndex) {
return this.delegate.indexOf(predicate, fromIndex);
}
@Override
public int lastIndexOf(IntPredicate predicate, int fromIndex) {
return this.delegate.lastIndexOf(predicate, fromIndex);
}
@Override
public int readableByteCount() {
return this.delegate.readableByteCount();
}
@Override
public int writableByteCount() {
return this.delegate.writableByteCount();
}
@Override
public int capacity() {
return this.delegate.capacity();
}
@Override
public DataBuffer capacity(int capacity) {
return this.delegate.capacity(capacity);
}
@Override
public DataBuffer ensureCapacity(int capacity) {
return this.delegate.ensureCapacity(capacity);
}
@Override
public int readPosition() {
return this.delegate.readPosition();
}
@Override
public DataBuffer readPosition(int readPosition) {
return this.delegate.readPosition(readPosition);
}
@Override
public int writePosition() {
return this.delegate.writePosition();
}
@Override
public DataBuffer writePosition(int writePosition) {
return this.delegate.writePosition(writePosition);
}
@Override
public byte getByte(int index) {
return this.delegate.getByte(index);
}
@Override
public byte read() {
return this.delegate.read();
}
@Override
public DataBuffer read(byte[] destination) {
return this.delegate.read(destination);
}
@Override
public DataBuffer read(byte[] destination, int offset, int length) {
return this.delegate.read(destination, offset, length);
}
@Override
public DataBuffer write(byte b) {
return this.delegate.write(b);
}
@Override
public DataBuffer write(byte[] source) {
return this.delegate.write(source);
}
@Override
public DataBuffer write(byte[] source, int offset, int length) {
return this.delegate.write(source, offset, length);
}
@Override
public DataBuffer write(DataBuffer... buffers) {
return this.delegate.write(buffers);
}
@Override
public DataBuffer write(ByteBuffer... buffers) {
return this.delegate.write(buffers);
}
@Override
public DataBuffer write(CharSequence charSequence,
Charset charset) {
return this.delegate.write(charSequence, charset);
}
@Override
public DataBuffer slice(int index, int length) {
return this.delegate.slice(index, length);
}
@Override
public DataBuffer retainedSlice(int index, int length) {
return this.delegate.retainedSlice(index, length);
}
@Override
public ByteBuffer asByteBuffer() {
return this.delegate.asByteBuffer();
}
@Override
public ByteBuffer asByteBuffer(int index, int length) {
return this.delegate.asByteBuffer(index, length);
}
@Override
public InputStream asInputStream() {
return this.delegate.asInputStream();
}
@Override
public InputStream asInputStream(boolean releaseOnClose) {
return this.delegate.asInputStream(releaseOnClose);
}
@Override
public OutputStream asOutputStream() {
return this.delegate.asOutputStream();
}
@Override
public String toString(Charset charset) {
return this.delegate.toString(charset);
}
@Override
public String toString(int index, int length, Charset charset) {
return this.delegate.toString(index, length, charset);
}
}