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/*
* 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.spark.network
import java.net.InetAddress
import java.net.InetSocketAddress
import java.nio.ByteBuffer
private[spark] class MessageChunkHeader(
val typ: Long,
val id: Int,
val totalSize: Int,
val chunkSize: Int,
val other: Int,
val address: InetSocketAddress) {
lazy val buffer = {
// No need to change this, at 'use' time, we do a reverse lookup of the hostname.
// Refer to network.Connection
val ip = address.getAddress.getAddress()
val port = address.getPort()
ByteBuffer.
allocate(MessageChunkHeader.HEADER_SIZE).
putLong(typ).
putInt(id).
putInt(totalSize).
putInt(chunkSize).
putInt(other).
putInt(ip.size).
put(ip).
putInt(port).
position(MessageChunkHeader.HEADER_SIZE).
flip.asInstanceOf[ByteBuffer]
}
override def toString = "" + this.getClass.getSimpleName + ":" + id + " of type " + typ +
" and sizes " + totalSize + " / " + chunkSize + " bytes"
}
private[spark] object MessageChunkHeader {
val HEADER_SIZE = 40
def create(buffer: ByteBuffer): MessageChunkHeader = {
if (buffer.remaining != HEADER_SIZE) {
throw new IllegalArgumentException("Cannot convert buffer data to Message")
}
val typ = buffer.getLong()
val id = buffer.getInt()
val totalSize = buffer.getInt()
val chunkSize = buffer.getInt()
val other = buffer.getInt()
val ipSize = buffer.getInt()
val ipBytes = new Array[Byte](ipSize)
buffer.get(ipBytes)
val ip = InetAddress.getByAddress(ipBytes)
val port = buffer.getInt()
new MessageChunkHeader(typ, id, totalSize, chunkSize, other, new InetSocketAddress(ip, port))
}
}
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