73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
/*
|
|
* 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.
|
|
*
|
|
* Modified by Cloudius Systems.
|
|
* Copyright 2015 Cloudius Systems.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "utils/UUID.hh"
|
|
#include "streaming/stream_summary.hh"
|
|
#include <memory>
|
|
#include "core/shared_ptr.hh"
|
|
|
|
namespace streaming {
|
|
|
|
class stream_session;
|
|
|
|
/**
|
|
* StreamTask is an abstraction of the streaming task performed over specific ColumnFamily.
|
|
*/
|
|
class stream_task {
|
|
public:
|
|
using UUID = utils::UUID;
|
|
/** StreamSession that this task belongs */
|
|
shared_ptr<stream_session> session;
|
|
|
|
UUID cf_id;
|
|
|
|
stream_task(shared_ptr<stream_session> _session, UUID _cf_id);
|
|
~stream_task();
|
|
|
|
public:
|
|
/**
|
|
* @return total number of files this task receives/streams.
|
|
*/
|
|
virtual int get_total_number_of_files() = 0;
|
|
|
|
/**
|
|
* @return total bytes expected to receive
|
|
*/
|
|
virtual long get_total_size() = 0;
|
|
|
|
/**
|
|
* Abort the task.
|
|
* Subclass should implement cleaning up resources.
|
|
*/
|
|
virtual void abort() = 0;
|
|
|
|
/**
|
|
* @return StreamSummary that describes this task
|
|
*/
|
|
virtual stream_summary get_summary() {
|
|
return stream_summary(this->cf_id, this->get_total_number_of_files(), this->get_total_size());
|
|
}
|
|
};
|
|
|
|
} // namespace streaming
|