dubbo DataQueueCommand 源码
dubbo DataQueueCommand 代码
文件路径：/dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/command/DataQueueCommand.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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
*
* 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 org.apache.dubbo.rpc.protocol.tri.command;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPromise;
import io.netty.handler.codec.http2.DefaultHttp2DataFrame;
public class DataQueueCommand extends QueuedCommand {
private final byte[] data;
private final int compressFlag;
private final boolean endStream;
private DataQueueCommand(byte[] data, int compressFlag, boolean endStream) {
this.data = data;
this.compressFlag = compressFlag;
this.endStream = endStream;
}
public static DataQueueCommand createGrpcCommand(byte[] data, boolean endStream,
int compressFlag) {
return new DataQueueCommand(data, compressFlag, endStream);
}
@Override
public void doSend(ChannelHandlerContext ctx, ChannelPromise promise) {
if (data == null) {
ctx.write(new DefaultHttp2DataFrame(endStream), promise);
} else {
ByteBuf buf = ctx.alloc().buffer();
buf.writeByte(compressFlag);
buf.writeInt(data.length);
buf.writeBytes(data);
ctx.write(new DefaultHttp2DataFrame(buf, endStream), promise);
}
}
// for test
public byte[] getData() {
return data;
}
// for test
public boolean isEndStream() {
return endStream;
}
}
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