| /* |
| * 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.cassandra.streaming.messages; |
| |
| import java.io.IOException; |
| import java.util.UUID; |
| |
| import com.google.common.base.Objects; |
| |
| import org.apache.cassandra.db.TypeSizes; |
| import org.apache.cassandra.io.util.DataInputPlus; |
| import org.apache.cassandra.io.util.DataOutputPlus; |
| import org.apache.cassandra.locator.InetAddressAndPort; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.schema.TableId; |
| import org.apache.cassandra.streaming.StreamSession; |
| import org.apache.cassandra.utils.UUIDSerializer; |
| |
| import static org.apache.cassandra.locator.InetAddressAndPort.Serializer.inetAddressAndPortSerializer; |
| |
| /** |
| * StreamMessageHeader is appended before sending actual data to describe what it's sending. |
| */ |
| public class StreamMessageHeader |
| { |
| public static FileMessageHeaderSerializer serializer = new FileMessageHeaderSerializer(); |
| |
| public final TableId tableId; |
| public UUID planId; |
| // it tells us if the file was sent by a follower stream session |
| public final boolean sendByFollower; |
| public int sessionIndex; |
| public final int sequenceNumber; |
| public final long repairedAt; |
| public final UUID pendingRepair; |
| public final InetAddressAndPort sender; |
| |
| public StreamMessageHeader(TableId tableId, |
| InetAddressAndPort sender, |
| UUID planId, |
| boolean sendByFollower, |
| int sessionIndex, |
| int sequenceNumber, |
| long repairedAt, |
| UUID pendingRepair) |
| { |
| this.tableId = tableId; |
| this.sender = sender; |
| this.planId = planId; |
| this.sendByFollower = sendByFollower; |
| this.sessionIndex = sessionIndex; |
| this.sequenceNumber = sequenceNumber; |
| this.repairedAt = repairedAt; |
| this.pendingRepair = pendingRepair; |
| } |
| |
| @Override |
| public String toString() |
| { |
| final StringBuilder sb = new StringBuilder("Header ("); |
| sb.append("tableId: ").append(tableId); |
| sb.append(", #").append(sequenceNumber); |
| sb.append(", repairedAt: ").append(repairedAt); |
| sb.append(", pendingRepair: ").append(pendingRepair); |
| sb.append(", sendByFollower: ").append(sendByFollower); |
| sb.append(')'); |
| return sb.toString(); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| StreamMessageHeader that = (StreamMessageHeader) o; |
| return sendByFollower == that.sendByFollower && |
| sequenceNumber == that.sequenceNumber && |
| Objects.equal(tableId, that.tableId); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hashCode(tableId, sendByFollower, sequenceNumber); |
| } |
| |
| public void addSessionInfo(StreamSession session) |
| { |
| planId = session.planId(); |
| sessionIndex = session.sessionIndex(); |
| } |
| |
| public static class FileMessageHeaderSerializer |
| { |
| public void serialize(StreamMessageHeader header, DataOutputPlus out, int version) throws IOException |
| { |
| header.tableId.serialize(out); |
| inetAddressAndPortSerializer.serialize(header.sender, out, version); |
| UUIDSerializer.serializer.serialize(header.planId, out, version); |
| out.writeBoolean(header.sendByFollower); |
| out.writeInt(header.sessionIndex); |
| out.writeInt(header.sequenceNumber); |
| out.writeLong(header.repairedAt); |
| out.writeBoolean(header.pendingRepair != null); |
| if (header.pendingRepair != null) |
| { |
| UUIDSerializer.serializer.serialize(header.pendingRepair, out, version); |
| } |
| } |
| |
| public StreamMessageHeader deserialize(DataInputPlus in, int version) throws IOException |
| { |
| TableId tableId = TableId.deserialize(in); |
| InetAddressAndPort sender = inetAddressAndPortSerializer.deserialize(in, version); |
| UUID planId = UUIDSerializer.serializer.deserialize(in, MessagingService.current_version); |
| boolean sendByFollower = in.readBoolean(); |
| int sessionIndex = in.readInt(); |
| int sequenceNumber = in.readInt(); |
| long repairedAt = in.readLong(); |
| UUID pendingRepair = in.readBoolean() ? UUIDSerializer.serializer.deserialize(in, version) : null; |
| |
| return new StreamMessageHeader(tableId, sender, planId, sendByFollower, sessionIndex, sequenceNumber, repairedAt, pendingRepair); |
| } |
| |
| public long serializedSize(StreamMessageHeader header, int version) |
| { |
| long size = header.tableId.serializedSize(); |
| size += inetAddressAndPortSerializer.serializedSize(header.sender, version); |
| size += UUIDSerializer.serializer.serializedSize(header.planId, version); |
| size += TypeSizes.sizeof(header.sendByFollower); |
| size += TypeSizes.sizeof(header.sessionIndex); |
| size += TypeSizes.sizeof(header.sequenceNumber); |
| size += TypeSizes.sizeof(header.repairedAt); |
| size += TypeSizes.sizeof(header.pendingRepair != null); |
| size += header.pendingRepair != null ? UUIDSerializer.serializer.serializedSize(header.pendingRepair, version) : 0; |
| |
| return size; |
| } |
| } |
| } |