com.taobao.arthas.grpcweb.proxy.SingleHttpChunkedInput Maven / Gradle / Ivy
/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you 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 com.taobao.arthas.grpcweb.proxy;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.http.DefaultHttpContent;
import io.netty.handler.codec.http.HttpContent;
import io.netty.handler.codec.http.LastHttpContent;
import io.netty.handler.stream.ChunkedInput;
/**
* 和 LastHttpContent 对比，少了 LastHttpContent.EMPTY_LAST_CONTENT
*
* @see LastHttpContent
* @see LastHttpContent#EMPTY_LAST_CONTENT
*/
public class SingleHttpChunkedInput implements ChunkedInput {
private final ChunkedInput input;
/**
* Creates a new instance using the specified input.
* @param input {@link ChunkedInput} containing data to write
*/
public SingleHttpChunkedInput(ChunkedInput input) {
this.input = input;
// lastHttpContent = LastHttpContent.EMPTY_LAST_CONTENT;
}
/**
* Creates a new instance using the specified input. {@code lastHttpContent} will be written as the terminating
* chunk.
* @param input {@link ChunkedInput} containing data to write
* @param lastHttpContent {@link LastHttpContent} that will be written as the terminating chunk. Use this for
* training headers.
*/
public SingleHttpChunkedInput(ChunkedInput input, LastHttpContent lastHttpContent) {
this.input = input;
// this.lastHttpContent = lastHttpContent;
}
@Override
public boolean isEndOfInput() throws Exception {
if (input.isEndOfInput()) {
// Only end of input after last HTTP chunk has been sent
return true;
} else {
return false;
}
}
@Override
public void close() throws Exception {
input.close();
}
@Deprecated
@Override
public HttpContent readChunk(ChannelHandlerContext ctx) throws Exception {
return readChunk(ctx.alloc());
}
@Override
public HttpContent readChunk(ByteBufAllocator allocator) throws Exception {
if (input.isEndOfInput()) {
return null;
} else {
ByteBuf buf = input.readChunk(allocator);
if (buf == null) {
return null;
}
return new DefaultHttpContent(buf);
}
}
@Override
public long length() {
return input.length();
}
@Override
public long progress() {
return input.progress();
}
}