| /* |
| * Copyright 2017-present Open Networking Laboratory |
| * |
| * Licensed 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.onosproject.ofagent.impl; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.PooledByteBufAllocator; |
| import io.netty.channel.ChannelHandlerContext; |
| import io.netty.handler.codec.EncoderException; |
| import io.netty.handler.codec.MessageToByteEncoder; |
| import org.projectfloodlight.openflow.protocol.OFMessage; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Encodes OFMessage to a byte buffer. |
| */ |
| public final class OFMessageEncoder extends MessageToByteEncoder<Iterable<OFMessage>> { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Override |
| protected void encode(ChannelHandlerContext ctx, Iterable<OFMessage> msgList, ByteBuf out) |
| throws Exception { |
| |
| if (!ctx.channel().isActive()) { |
| return; |
| } |
| |
| if (msgList instanceof Iterable) { |
| msgList.forEach(msg -> { |
| try { |
| ByteBuf byteBuf = PooledByteBufAllocator.DEFAULT.directBuffer(); |
| msg.writeTo(byteBuf); |
| |
| ctx.writeAndFlush(byteBuf); |
| } catch (Exception e) { |
| log.error("error occured because of {}", e.getMessage()); |
| } |
| }); |
| } |
| } |
| |
| @Override |
| public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { |
| if (cause instanceof EncoderException) { |
| log.error("Connection closed because of EncoderException {}", cause.getMessage()); |
| ctx.close(); |
| } else { |
| log.error("Exception occured while processing encoding because of {}", cause.getMessage()); |
| ctx.close(); |
| } |
| } |
| } |