Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Laboratory |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 3 | * |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 7 | * |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 15 | */ |
Aaron Kruglikov | 1b72738 | 2016-02-09 16:17:47 -0800 | [diff] [blame] | 16 | package org.onosproject.store.cluster.messaging.impl; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 17 | |
Aaron Kruglikov | 1b72738 | 2016-02-09 16:17:47 -0800 | [diff] [blame] | 18 | import com.google.common.base.Charsets; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 19 | import io.netty.buffer.ByteBuf; |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 20 | import io.netty.channel.ChannelHandler.Sharable; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 21 | import io.netty.channel.ChannelHandlerContext; |
| 22 | import io.netty.handler.codec.MessageToByteEncoder; |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 23 | import org.onlab.packet.IpAddress; |
| 24 | import org.onlab.packet.IpAddress.Version; |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 25 | import org.onosproject.store.cluster.messaging.Endpoint; |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 26 | import org.slf4j.Logger; |
| 27 | import org.slf4j.LoggerFactory; |
| 28 | |
Aaron Kruglikov | 1b72738 | 2016-02-09 16:17:47 -0800 | [diff] [blame] | 29 | import java.io.IOException; |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 30 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 31 | /** |
| 32 | * Encode InternalMessage out into a byte buffer. |
| 33 | */ |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 34 | @Sharable |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 35 | public class MessageEncoder extends MessageToByteEncoder<InternalMessage> { |
| 36 | |
Aaron Kruglikov | eb0ae4e | 2015-11-10 19:16:16 -0800 | [diff] [blame] | 37 | private final int preamble; |
| 38 | |
| 39 | public MessageEncoder(int preamble) { |
| 40 | super(); |
| 41 | this.preamble = preamble; |
| 42 | } |
| 43 | |
Madan Jampani | 29e5dfd | 2014-10-07 17:26:25 -0700 | [diff] [blame] | 44 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 45 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 46 | @Override |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 47 | protected void encode( |
| 48 | ChannelHandlerContext context, |
| 49 | InternalMessage message, |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 50 | ByteBuf out) throws Exception { |
| 51 | |
Aaron Kruglikov | eb0ae4e | 2015-11-10 19:16:16 -0800 | [diff] [blame] | 52 | out.writeInt(this.preamble); |
| 53 | |
Madan Jampani | 0583387 | 2016-07-12 23:01:39 -0700 | [diff] [blame] | 54 | // write time |
| 55 | out.writeLong(message.time().logicalTime()); |
| 56 | out.writeLong(message.time().logicalCounter()); |
| 57 | |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 58 | // write message id |
| 59 | out.writeLong(message.id()); |
Madan Jampani | 938aa43 | 2014-10-04 17:37:23 -0700 | [diff] [blame] | 60 | |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 61 | Endpoint sender = message.sender(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 62 | |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 63 | IpAddress senderIp = sender.host(); |
| 64 | if (senderIp.version() == Version.INET) { |
| 65 | out.writeByte(0); |
| 66 | } else { |
| 67 | out.writeByte(1); |
| 68 | } |
| 69 | out.writeBytes(senderIp.toOctets()); |
| 70 | |
| 71 | // write sender port |
| 72 | out.writeInt(sender.port()); |
| 73 | |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 74 | byte[] messageTypeBytes = message.type().getBytes(Charsets.UTF_8); |
| 75 | |
| 76 | // write length of message type |
| 77 | out.writeInt(messageTypeBytes.length); |
| 78 | |
| 79 | // write message type bytes |
| 80 | out.writeBytes(messageTypeBytes); |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 81 | |
Madan Jampani | a9e70a6 | 2016-03-02 16:28:18 -0800 | [diff] [blame] | 82 | // write message status value |
| 83 | out.writeInt(message.status().ordinal()); |
| 84 | |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 85 | byte[] payload = message.payload(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 86 | |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 87 | // write payload length |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 88 | out.writeInt(payload.length); |
| 89 | |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 90 | // write payload. |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 91 | out.writeBytes(payload); |
| 92 | } |
Madan Jampani | 29e5dfd | 2014-10-07 17:26:25 -0700 | [diff] [blame] | 93 | |
| 94 | @Override |
| 95 | public void exceptionCaught(ChannelHandlerContext context, Throwable cause) { |
Yuta HIGUCHI | 813fb90 | 2014-11-07 01:49:33 -0800 | [diff] [blame] | 96 | if (cause instanceof IOException) { |
| 97 | log.debug("IOException inside channel handling pipeline.", cause); |
| 98 | } else { |
| 99 | log.error("non-IOException inside channel handling pipeline.", cause); |
| 100 | } |
Madan Jampani | 29e5dfd | 2014-10-07 17:26:25 -0700 | [diff] [blame] | 101 | context.close(); |
| 102 | } |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 103 | } |