| /** |
| * 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.storm.pacemaker.codec; |
| |
| import java.util.List; |
| import org.apache.storm.generated.HBMessage; |
| import org.apache.storm.generated.HBMessageData; |
| import org.apache.storm.generated.HBServerMessageType; |
| import org.apache.storm.messaging.netty.ControlMessage; |
| import org.apache.storm.messaging.netty.INettySerializable; |
| import org.apache.storm.messaging.netty.SaslMessageToken; |
| import org.apache.storm.shade.io.netty.buffer.ByteBuf; |
| import org.apache.storm.shade.io.netty.buffer.ByteBufAllocator; |
| import org.apache.storm.shade.io.netty.buffer.Unpooled; |
| import org.apache.storm.shade.io.netty.channel.ChannelHandlerContext; |
| import org.apache.storm.shade.io.netty.handler.codec.MessageToMessageEncoder; |
| import org.apache.storm.utils.Utils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ThriftEncoder extends MessageToMessageEncoder<Object> { |
| |
| private static final Logger LOG = LoggerFactory |
| .getLogger(ThriftEncoder.class); |
| |
| private HBMessage encodeNettySerializable(ByteBufAllocator alloc, |
| INettySerializable nettyMessage, HBServerMessageType serverMessageType) { |
| |
| HBMessageData messageData = new HBMessageData(); |
| HBMessage m = new HBMessage(); |
| byte[] messageBuffer = new byte[nettyMessage.encodeLength()]; |
| ByteBuf wrappedBuffer = Unpooled.wrappedBuffer(messageBuffer); |
| try { |
| wrappedBuffer.resetWriterIndex(); |
| nettyMessage.write(wrappedBuffer); |
| |
| messageData.set_message_blob(messageBuffer); |
| m.set_type(serverMessageType); |
| m.set_data(messageData); |
| return m; |
| } finally { |
| wrappedBuffer.release(); |
| } |
| } |
| |
| @Override |
| protected void encode(ChannelHandlerContext channelHandlerContext, Object msg, List<Object> out) throws Exception { |
| if (msg == null) { |
| return; |
| } |
| |
| LOG.debug("Trying to encode: " + msg.getClass().toString() + " : " + msg.toString()); |
| |
| HBMessage message; |
| ByteBufAllocator alloc = channelHandlerContext.alloc(); |
| if (msg instanceof INettySerializable) { |
| INettySerializable nettyMsg = (INettySerializable) msg; |
| |
| HBServerMessageType type; |
| if (msg instanceof ControlMessage) { |
| type = HBServerMessageType.CONTROL_MESSAGE; |
| } else if (msg instanceof SaslMessageToken) { |
| type = HBServerMessageType.SASL_MESSAGE_TOKEN; |
| } else { |
| LOG.error("Didn't recognise INettySerializable: " + nettyMsg.toString()); |
| throw new RuntimeException("Unrecognized INettySerializable."); |
| } |
| message = encodeNettySerializable(alloc, nettyMsg, type); |
| } else { |
| message = (HBMessage) msg; |
| } |
| |
| try { |
| byte[] serialized = Utils.thriftSerialize(message); |
| ByteBuf ret = alloc.ioBuffer(serialized.length + 4); |
| |
| ret.writeInt(serialized.length); |
| ret.writeBytes(serialized); |
| |
| out.add(ret); |
| } catch (RuntimeException e) { |
| LOG.error("Failed to serialize.", e); |
| throw e; |
| } |
| } |
| } |