content: /*
   * 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 java.io.IOException;
  import java.util.List;
  
  import org.apache.cassandra.dht.Range;
  import org.apache.cassandra.dht.Token;
  import org.apache.cassandra.schema.TableId;
  import org.apache.cassandra.utils.TimeUUID;
  
  /**
   * Some subset of data to be streamed. Implementations handle writing out their data via the write method.
   * On the receiving end, {@link IncomingStream} streams the data in.
   *
   * All the data contained in a given stream needs to have the same repairedAt timestamp (or 0) and pendingRepair
   * id (or null).
   */
  public interface OutgoingStream
  {
      /**
       * Write the streams data into the socket
       */
      void write(StreamSession session, StreamingDataOutputPlus output, int version) throws IOException;
  
      /**
       * Release any resources held by the stream
       */
      void finish();
  
      long getRepairedAt();
      TimeUUID getPendingRepair();
  
      String getName();
  
      /**
       * @return estimated file size to be streamed. This should only be used for metrics, because concurrent
       * stats metadata update and index redistribution will change file sizes.
       */
      long getEstimatedSize();
      TableId getTableId();
      int getNumFiles();
      List<Range<Token>> ranges();
  }
  