com.github.yag.ipc.PacketEncoder.kt Maven / Gradle / Ivy

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A simple async IPC library written in Kotlin.

There is a newer version: 0.18.3

/*
 * Copyright 2018-2020 [email protected]
 *
 * 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 com.github.yag.ipc

import io.netty.channel.ChannelHandlerContext
import io.netty.channel.ChannelOutboundHandlerAdapter
import io.netty.channel.ChannelPromise
import org.slf4j.LoggerFactory

internal class PacketEncoder : ChannelOutboundHandlerAdapter() {

    override fun write(ctx: ChannelHandlerContext, msg: Any, promise: ChannelPromise) {
        LOG.trace("Write packet: {}", msg)
        if (msg is Packet<*>) {
            val buf = PacketCodec.encode(msg, ctx.alloc())
            ctx.write(buf, promise)
        } else {
            ctx.write(msg, promise)
        }
    }

    companion object {
        private val LOG =
            LoggerFactory.getLogger(PacketEncoder::class.java)
    }

}