inc/ResourceClaim.h

/**
 * @file ResourceClaim.h
 * Resource Claim class declaration
 *
 * 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.
 */
#ifndef __RESOURCE_CLAIM_H__
#define __RESOURCE_CLAIM_H__

#include <string>
#include <uuid/uuid.h>
#include <vector>
#include <queue>
#include <map>
#include <mutex>
#include <atomic>
#include "Configure.h"

//! Default content directory
#define DEFAULT_CONTENT_DIRECTORY "."

//! ResourceClaim Class
class ResourceClaim {

public:
	//! Constructor
	/*!
	 * Create a new resource claim
	 */
	ResourceClaim(const std::string contentDirectory);
	//! Destructor
	virtual ~ResourceClaim() {}
	//! increaseFlowFileRecordOwnedCount
	void increaseFlowFileRecordOwnedCount()
	{
		++_flowFileRecordOwnedCount;
	}
	//! decreaseFlowFileRecordOwenedCount
	void decreaseFlowFileRecordOwnedCount()
	{
		--_flowFileRecordOwnedCount;
	}
	//! getFlowFileRecordOwenedCount
	uint64_t getFlowFileRecordOwnedCount()
	{
		return _flowFileRecordOwnedCount;
	}
	//! Get the content full path
	std::string getContentFullPath()
	{
		return _contentFullPath;
	}

protected:
	//! A global unique identifier
	uuid_t _uuid;
	//! A local unique identifier
	uint64_t _id;
	//! Full path to the content
	std::string _contentFullPath;

	//! How many FlowFileRecord Own this cliam
	std::atomic<uint64_t> _flowFileRecordOwnedCount;

private:
	//! Configure
	Configure *_configure;
	//! Logger
	Logger *_logger;
	// Prevent default copy constructor and assignment operation
	// Only support pass by reference or pointer
	ResourceClaim(const ResourceClaim &parent);
	ResourceClaim &operator=(const ResourceClaim &parent);

	//! Local resource claim number
	static std::atomic<uint64_t> _localResourceClaimNumber;
};

#endif