/*
* 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.nifi.processors.lumberjack.response;
import org.apache.nifi.processors.lumberjack.frame.LumberjackFrame;
import java.nio.ByteBuffer;
/**
'ack' frame type
SENT FROM READER ONLY
frame type value: ASCII 'A' aka byte value 0x41
Payload:
32bit unsigned sequence number.
*/
public class LumberjackResponse {
private final long seqNumber;
final private byte version = 0x31, frameType = 0x41;
public LumberjackResponse(final long seqNumber) {
this.seqNumber = seqNumber;
}
/**
* Creates a LumberjackFrame where the data portion will contain this response.
*
*
* @return a LumberjackFrame for for this response
*/
public LumberjackFrame toFrame() {
return new LumberjackFrame.Builder()
.version(version)
.frameType(frameType)
.payload(ByteBuffer.allocate(4).putInt((int) seqNumber).array())
.build();
}
public static LumberjackResponse ok(final long seqNumber) {
return new LumberjackResponse(seqNumber);
}
}