| /* |
| * 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.Objects; |
| |
| import io.netty.channel.Channel; |
| |
| import org.apache.cassandra.db.ColumnFamilyStore; |
| import org.apache.cassandra.io.util.DataInputPlus; |
| |
| import org.apache.cassandra.io.util.DataOutputStreamPlus; |
| import org.apache.cassandra.streaming.IncomingStream; |
| import org.apache.cassandra.streaming.StreamManager; |
| import org.apache.cassandra.streaming.StreamReceiveException; |
| import org.apache.cassandra.streaming.StreamSession; |
| import org.apache.cassandra.utils.JVMStabilityInspector; |
| |
| public class IncomingStreamMessage extends StreamMessage |
| { |
| public static Serializer<IncomingStreamMessage> serializer = new Serializer<IncomingStreamMessage>() |
| { |
| @SuppressWarnings("resource") |
| public IncomingStreamMessage deserialize(DataInputPlus input, int version) throws IOException |
| { |
| StreamMessageHeader header = StreamMessageHeader.serializer.deserialize(input, version); |
| StreamSession session = StreamManager.instance.findSession(header.sender, header.planId, header.sessionIndex, header.sendByFollower); |
| if (session == null) |
| throw new IllegalStateException(String.format("unknown stream session: %s - %d", header.planId, header.sessionIndex)); |
| ColumnFamilyStore cfs = ColumnFamilyStore.getIfExists(header.tableId); |
| if (cfs == null) |
| throw new StreamReceiveException(session, "CF " + header.tableId + " was dropped during streaming"); |
| |
| try |
| { |
| IncomingStream incomingData = cfs.getStreamManager().prepareIncomingStream(session, header); |
| incomingData.read(input, version); |
| |
| return new IncomingStreamMessage(incomingData, header); |
| } |
| catch (Throwable t) |
| { |
| JVMStabilityInspector.inspectThrowable(t); |
| throw new StreamReceiveException(session, t); |
| } |
| } |
| |
| public void serialize(IncomingStreamMessage message, DataOutputStreamPlus out, int version, StreamSession session) |
| { |
| throw new UnsupportedOperationException("Not allowed to call serialize on an incoming stream"); |
| } |
| |
| public long serializedSize(IncomingStreamMessage message, int version) |
| { |
| throw new UnsupportedOperationException("Not allowed to call serializedSize on an incoming stream"); |
| } |
| }; |
| |
| public final StreamMessageHeader header; |
| public final IncomingStream stream; |
| |
| public IncomingStreamMessage(IncomingStream stream, StreamMessageHeader header) |
| { |
| super(Type.STREAM); |
| this.stream = stream; |
| this.header = header; |
| } |
| |
| @Override |
| public StreamSession getOrCreateSession(Channel channel) |
| { |
| return stream.session(); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "IncomingStreamMessage{" + |
| "header=" + header + |
| ", stream=" + stream + |
| '}'; |
| } |
| |
| public boolean equals(Object o) |
| { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| IncomingStreamMessage that = (IncomingStreamMessage) o; |
| return Objects.equals(header, that.header) && |
| Objects.equals(stream, that.stream); |
| } |
| |
| public int hashCode() |
| { |
| |
| return Objects.hash(header, stream); |
| } |
| } |
| |