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Use existing CompositeByteBuf if possible 

This commit uses the existing CompositeByteBuf if present, as opposed
to creating a new composite for every call to
NettyDataBuffer.write(ByteBuf...)

Issue: SPR-16180
This commit is contained in:
Arjen Poutsma 2017-11-10 14:47:39 +01:00
parent 8cfa3c632b
commit 8223809455
1 changed files with 12 additions and 10 deletions
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22
spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBuffer.java
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@ -208,16 +208,18 @@ public class NettyDataBuffer implements PooledDataBuffer {
public NettyDataBuffer write(ByteBuf... byteBufs) {
Assert.notNull(byteBufs, "'byteBufs' must not be null");
CompositeByteBuf composite = new CompositeByteBuf(
this.byteBuf.alloc(), this.byteBuf.isDirect(), byteBufs.length + 1);
composite.addComponent(this.byteBuf);
composite.addComponents(byteBufs);
if (this.byteBuf instanceof CompositeByteBuf) {
CompositeByteBuf composite = (CompositeByteBuf) this.byteBuf;
composite.addComponents(true, byteBufs);
}
else {
ByteBuf oldByteBuf = this.byteBuf;
CompositeByteBuf composite = oldByteBuf.alloc().compositeBuffer(byteBufs.length + 1);
composite.addComponent(true, oldByteBuf);
composite.addComponents(true, byteBufs);
int writerIndex = this.byteBuf.readableBytes() +
Arrays.stream(byteBufs).mapToInt(ByteBuf::readableBytes).sum();
composite.writerIndex(writerIndex);
this.byteBuf = composite;
this.byteBuf = composite;
}
return this;
}
@ -249,7 +251,7 @@ public class NettyDataBuffer implements PooledDataBuffer {
@Override
public PooledDataBuffer retain() {
return new NettyDataBuffer(this.byteBuf.retain(), dataBufferFactory);
return new NettyDataBuffer(this.byteBuf.retain(), this.dataBufferFactory);
}
@Override