| /* |
| * 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; |
| |
| import org.apache.cassandra.db.ColumnFamilyStore; |
| import org.apache.cassandra.io.sstable.SSTableMultiWriter; |
| import org.apache.cassandra.io.sstable.format.SSTableReader; |
| import org.apache.cassandra.streaming.messages.OutgoingFileMessage; |
| import org.apache.cassandra.utils.FBUtilities; |
| |
| public interface StreamHook |
| { |
| public static final StreamHook instance = createHook(); |
| |
| public OutgoingFileMessage reportOutgoingFile(StreamSession session, SSTableReader sstable, OutgoingFileMessage message); |
| public void reportStreamFuture(StreamSession session, StreamResultFuture future); |
| public void reportIncomingFile(ColumnFamilyStore cfs, SSTableMultiWriter writer, StreamSession session, int sequenceNumber); |
| |
| static StreamHook createHook() |
| { |
| String className = System.getProperty("cassandra.stream_hook"); |
| if (className != null) |
| { |
| return FBUtilities.construct(className, StreamHook.class.getSimpleName()); |
| } |
| else |
| { |
| return new StreamHook() |
| { |
| public OutgoingFileMessage reportOutgoingFile(StreamSession session, SSTableReader sstable, OutgoingFileMessage message) |
| { |
| return message; |
| } |
| |
| public void reportStreamFuture(StreamSession session, StreamResultFuture future) {} |
| |
| public void reportIncomingFile(ColumnFamilyStore cfs, SSTableMultiWriter writer, StreamSession session, int sequenceNumber) {} |
| }; |
| } |
| } |
| } |