0001
0002
0003
0004
0005
0006
0007
0008
0009
0010
0011
0012
0013
0014
0015
0016
0017
0018 package org.apache.spark.network.buffer;
0019
0020 import java.io.IOException;
0021 import java.io.InputStream;
0022 import java.nio.ByteBuffer;
0023
0024 import io.netty.buffer.ByteBufInputStream;
0025 import io.netty.buffer.Unpooled;
0026 import org.apache.commons.lang3.builder.ToStringBuilder;
0027 import org.apache.commons.lang3.builder.ToStringStyle;
0028
0029
0030
0031
0032 public class NioManagedBuffer extends ManagedBuffer {
0033 private final ByteBuffer buf;
0034
0035 public NioManagedBuffer(ByteBuffer buf) {
0036 this.buf = buf;
0037 }
0038
0039 @Override
0040 public long size() {
0041 return buf.remaining();
0042 }
0043
0044 @Override
0045 public ByteBuffer nioByteBuffer() throws IOException {
0046 return buf.duplicate();
0047 }
0048
0049 @Override
0050 public InputStream createInputStream() throws IOException {
0051 return new ByteBufInputStream(Unpooled.wrappedBuffer(buf));
0052 }
0053
0054 @Override
0055 public ManagedBuffer retain() {
0056 return this;
0057 }
0058
0059 @Override
0060 public ManagedBuffer release() {
0061 return this;
0062 }
0063
0064 @Override
0065 public Object convertToNetty() throws IOException {
0066 return Unpooled.wrappedBuffer(buf);
0067 }
0068
0069 @Override
0070 public String toString() {
0071 return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
0072 .append("buf", buf)
0073 .toString();
0074 }
0075 }
0076