| /* |
| * 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.jackrabbit.oak.segment.standby.codec; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.channel.ChannelHandlerContext; |
| import io.netty.handler.codec.MessageToByteEncoder; |
| import io.netty.util.CharsetUtil; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Encodes a 'get head' response. |
| */ |
| public class GetHeadResponseEncoder extends MessageToByteEncoder<GetHeadResponse> { |
| |
| private static final Logger log = LoggerFactory.getLogger(GetHeadResponseEncoder.class); |
| |
| @Override |
| protected void encode(ChannelHandlerContext ctx, GetHeadResponse msg, ByteBuf out) throws Exception { |
| log.debug("Sending head {} to client {}", msg.getHeadRecordId(), msg.getClientId()); |
| byte[] body = msg.getHeadRecordId().getBytes(CharsetUtil.UTF_8); |
| out.writeInt(body.length + 1); |
| out.writeByte(Messages.HEADER_RECORD); |
| out.writeBytes(body); |
| } |
| |
| } |