CN110311974A - A kind of cloud storage service method based on asynchronous message - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H30/00—ICT specially adapted for the handling or processing of medical images
- G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/53—Network services using third party service providers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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Abstract
The present invention proposes a kind of cloud storage service method based on asynchronous message, comprising: carries out verifying login；Client sends project number ProjectID to Cloud Server；Client sends data to Cloud Server, and data are saved to local temporary files catalogue, sends the data in Message Processing process；Client sends a message to message queue, and after message queue receives message, which is arranged in message queue sequentially in time；Message Processing process is opened after process, all data are saved in cloud storage and database by the data call in local temporary files catalogue into Message Processing process；Client receives the prompt of Cloud Server message queue, disconnects and this time connecting.The present invention improves user storage data efficiency, avoids leading to the problem of reply connection time-out in the case where data volume is bigger or the operating time is long, moreover it is possible to be installed in third party system as plug-in unit, convenient integrated to existed system and Data Migration.
Description
Technical field
The invention belongs to field of cloud computer technology, and in particular to a kind of cloud storage service method based on asynchronous message.
Background technique
With the development of Medical Imaging, the clinical mode diagnosed in conjunction with image is widely accepted.Currently, medical institutions
Medical image data is stored in PACS (image filing and communication system) system, using high-performance, the disk battle array of large capacity
The storage mediums such as column and tape library.But the continuous development of Medical Imaging Technology updates, the high-resolution of image, high-precision and novel
The diversity of image documentation equipment structure causes medical image data to show in large scale, various structures, feature complicated and changeable,
Realize that there are the following problems for remote diagnosis tradition PACS system:
1) storage cost is high: for volume data this for medical image, a CT examination image 200-500M, and one
Standard pathologic finding is up to 5G.Image data amount has reached TB, PB rank, is made with storage mediums such as disk array and tape libraries
With, safeguard, to store these huge data of a high price, extension flexibility is poor；
2) image data can not be shared: PACS system uses the local area network of hospital, can not pass through network and other doctors
Mechanism is treated to carry out the transmission of data and share.Access image data becomes the urgent need of doctor and patient whenever and wherever possible, they
Wish to be not limited solely to local computing, but can remotely pass through web browser, cell phone client or even mobile phone can be passed through
It scans the two-dimensional code and checks medical image.
Cloud storage with magnanimity, online, calamity is standby, security protection, sharable advantage are sent to great expectations.For medical institutions
Speech, image cloud storage is trend of the times, can convenient, efficiently solve many problems of real medical treatment process institute of traditional Chinese medicine and patient.
HDFS distributed file system is used to framework cloud by each major company and scientific research institution compared with high fault tolerance, retractility with it
Storage service is suitble to the storage of big data, may operate on cheap machine, is that the cloud that a kind of building is reliable, cost performance is high is deposited
Store up feasible program.HDFS uses the client/server of Master/Slave, HDFS cluster include a Namenode node and
Multiple Datanode nodes.Namenode is a management file name space and the main service for adjusting client access file
Device, Datanode use redundancy backup mechanism storing data block.Therefore, HDFS distributed file system framework cloud storage have with
Lower characteristic:
1) support the storage and processing of big data: big data refers to the data for reaching GB, TB rank, at present in practical application
Middle HDFS has been able to support the data storage of PB rank；
2) streaming accesses data: HDFS accesses data, that is, write-once using streaming, repeatedly reads.Data are once written not
It can modify, can only add, the consistency of data can be effectively ensured in it.The characteristics of this characteristic meets medical image；
3) scalability is high: as long as medical institutions purchase server as desired, installs operating system and even connect to the Net,
Cloud storage system meeting automatic identification, is added to capacity in storage pool automatically, disposably solves the problems, such as storage dilatation；
4) fault-tolerance is high: data automatically save multiple copies.HDFS improves fault-tolerance by way of increasing copy.Certain
After one copy is lost, this copy can restore automatically.
It can be seen from the above, medical image is stored in cloud, it can effectively reduce traditional PACS system operation cost, data can be solved
Sharing problem.But HDFS is suitble to the scene of high-throughput that a large amount of data are written at a certain time, is not suitable for low delay
Data storage.In clinic, using the big data of the cloud storage service storage this feature of image data of HDFS framework, handle
Need elapsed time, meanwhile, the processing of image data by sequence, extract header file, compressing file series of steps also can
Increase the time of data storage.In this case, when user carries out data storage, it may appear that session failed situation causes to use
Family experience sense is poor.Therefore the real-time of HDFS is poor, does not meet clinical application.
Summary of the invention
Based on above-mentioned technical problem, the cloud storage service method based on asynchronous message that this paper presents a kind of devises one
Parallel memorizing data method of the kind based on message queue, adapts to high-performance storage efficiency in distributed file system.Devise one
Kind is based on the data transmission method of TLS (secure transport layer protocol), and the method achieve the reliable of data in third party system to move
It moves.
A kind of cloud storage service method based on asynchronous message, the specific steps are as follows:
Step 1: client sends user information to Cloud Server, carries out verifying login, if login authentication success, cloud clothes
Business device return logins successfully information, goes to step 2, if login authentication is unsuccessful, Cloud Server returns to login failure information, and
Re-start login authentication；
Step 2: after user normally logs in, client sends project number ProjectID to Cloud Server, and Cloud Server exists
It searches whether that there are project number ProjectID in database, if it does not exist, then creates a project number ProjectID simultaneously
It saves in the database, while Cloud Server transmission has created project number information to client；If it exists, then it need not create
Project number ProjectID, while Cloud Server sends existing project number information to client；
Step 3: client sends data to Cloud Server, and data are saved to local temporary files catalogue, and by data
It is sent in Message Processing process, and Cloud Server sends data and is saved information to client；
Step 4: client sends a message to message queue, after message queue receives message, by the message according to the time
It is arranged sequentially in message queue, and transmission is prompted to client and receives message；Message Processing process is opened simultaneously, and will be local
Data call in temporary file directory is into Message Processing process, and after process, all data are saved in cloud storage
In device and database；
Step 5: client receives the prompt of Cloud Server message queue, then disconnects and this time connecting, cancellation and cloud service
The connection of device.
The message queue, including message header and message body；
The message header includes: ProjectID, Encryption, Msg_type, Src_path, Des_path, Msg_
flag,Activityid,Time,UserID；
The ProjectID is project number, is uniquely to identify in the database；Each project represents one
People, ProjectID are equivalent to a person's identity card number, are unique.
The Encryption judges whether data come from third party system to judge mark that whether data encrypt.
If the value of Encryption indicates that the data are local datas for 0, if the value of Encryption indicates that the data are third parties for 1
The passed data of system.
The Msg_type, is type of message, and message queue transmits the message to corresponding message queue according to type of message；
The type of message, specifically includes: online image data storage message, online image data and data reporting store
Message, offline image data storage message, offline image data and data reporting store message；
The Src_path is source path, and medical image is in local store path；
The Des_path is purpose path, the image data final path to be uploaded.
The Msg_flag, to judge whether message handles successful mark, if the value of Msg_flag has indicated message for 1
Through being successfully processed, if value indicates Message Processing failure for 0.
The Activityid, the corresponding Activityid of one acquisition image data, i.e. a people deposit in some day
All image datas of storage, Activityid can determine the specific date；
The ProjectID, a ProjectID can correspond to the multiple medical data of patient, by ProjectID and
Activityid uniquely determines the image sequence of user's storage.
The Time, for the time for creating message；
The UserID sends the user identifier ID of message, and the data space for saving the user is named.
The step 4, the specific steps are as follows:
Step 4.1: user issues data storage request by client, produces message, and client sends a message to message
Queue；
Step 4.2: after message queue receives message, which being arranged in message queue sequentially in time, often
A queue
In message according to the structural arrangement of message header and message body, and send and be prompted to client and receive message；
Step 4.3: message queue is according to message different type, sequentially in time, message is pushed to different message
In process；
Step 4.4: when message procedure processing, data are called from local temporary files catalogue, are arranged sequentially in time
Data extract data header information, and send database for head information and save, while sending out by compressing file, and by compressed file
It is sent to cloud storage；
Step 4.5: if message procedure processing in there is mistake, by the message reappose in message queue, again
Queuing is handled, and is gone in step 4.3；
The client can also be third party system, if client is third party system, local temporary files catalogue
For third party's temporary file directory, and the data in the catalogue are communicated by tls protocol, and with symmetric encipherment algorithm logarithm
According to being encrypted；
Advantageous effects:
User storage data efficiency can be improved by asynchronous process process in the method for the present invention, and user experience is good, avoids
Reply connection time-out is led to the problem of in the case that data volume is bigger or the operating time is long, moreover it is possible to facilitate and install as plug-in unit
Into third party system, convenient integrated to existed system and Data Migration.
Detailed description of the invention
Fig. 1 is a kind of cloud storage service method flow diagram based on asynchronous message of the embodiment of the present invention；
Fig. 2 is the queue message data structure of the embodiment of the present invention；
Fig. 3 is the message transmitting procedure of the embodiment of the present invention；
Fig. 4 is the third party system of the embodiment of the present invention based on the medical image data transmission process of tls protocol；
Fig. 5 is that the client of the embodiment of the present invention uploads batch image data；
Fig. 6 is that the cloud server end of the embodiment of the present invention receives and concurrent message is handled, wherein (a) is to send data to deposit
Chu Duan, (b) to send a message to queue, (c) message concurrent processing is to terminating；
Fig. 7 is that the client of the embodiment of the present invention successfully saves data.
Specific embodiment
Invention is described further with specific implementation example with reference to the accompanying drawing, process of the present invention is as shown in Figure 1, propose
A kind of cloud storage service method based on asynchronous message, data are transmitted by asynchronous message, improve data storage effect
Rate.User logs in by client, obtains project unique encodings (ProjectID), send data, send message, disconnect
Five steps complete the storage of data.The corresponding patient of one of ProjectID, is unique identification；The processing of message
Process is that client transmits the message to message AC module, and message AC module receives message, one side root from client on one side
According to type of message messaging to specified queue or multiple queues, then data that message queue is handled pass to cloud and deposit
Storage and database.Message queue parallel memorizing data realize the asynchronous biography of message to reduce this characteristic of processing time
It is defeated, solve HDFS real time problems.Secondly, parallel memorizing data method is based on, to realize pacifying for third party system data
Full storage, the present invention devise a kind of data transfer mode based on TLS, and which can be in no VPN (Virtual Private Network
Network) in the case where, medical image is uploaded automatically using Internet.
A kind of cloud storage service method based on asynchronous message, as shown in Figure 1, the specific steps are as follows:
Step 1: client sends user information to Cloud Server, carries out verifying login, if login authentication success, cloud clothes
Business device return logins successfully information, goes to step 2, if login authentication is unsuccessful, Cloud Server returns to login failure information, and
Re-start login authentication；
Step 2: after user normally logs in, client sends project number ProjectID to Cloud Server, and Cloud Server exists
It searches whether that there are project number ProjectID in database, if it does not exist, then creates a project number ProjectID simultaneously
It saves in the database, while Cloud Server transmission has created project number information to client；If it exists, then it need not create
Project number ProjectID, while Cloud Server sends existing project number information to client；
Step 3: client sends data to Cloud Server, and data are saved to local temporary files catalogue, and by data
It is sent in Message Processing process, and Cloud Server sends data and is saved information to client；
Step 4: client sends a message to message queue, after message queue receives message, by the message according to the time
It is arranged sequentially in message queue, and transmission is prompted to client and receives message；Message Processing process is opened simultaneously, and will be local
Data call in temporary file directory is into Message Processing process, and after process, all data are saved in cloud storage
In device and database；
Step 5: client receives the prompt of Cloud Server message queue, then disconnects and this time connecting, cancellation and cloud service
The connection of device.
After client transmits the message to message queue, do not need to synchronize to wait for the arrival of news and be disposed, can return into
Other operations of row, message queue asynchronous process after receiving the message.Message queue is equivalent to a middleware, it can be ensured that disappears
Breath is delivered to cloud storage, while liberating client, and client is enable to continue other operations.Message is defined structure as schemed
Shown in 2, wherein message header describes message queue position, queued name and login sessions ID, is that each message must have
Content, content can be setting value, default value or empty in message body.
The message queue, as shown in Fig. 2, including message header and message body；
The message header includes: ProjectID, Encryption, Msg_type, Src_path, Des_path, Msg_
flag,Activityid,Time,UserID；
The ProjectID is project number, is uniquely to identify in the database；Each project represents one
People, ProjectID are equivalent to a person's identity card number, are unique.
The Encryption judges whether data come from third party system to judge mark that whether data encrypt.
If the value of Encryption indicates that the data are local datas for 0, if the value of Encryption indicates that the data are third parties for 1
The passed data of system.
The Msg_type, is type of message, and message queue transmits the message to corresponding message queue according to type of message；
The type of message, specifically includes: online image data storage message, online image data and data reporting store
Message, offline image data storage message, offline image data and data reporting store message；
The Src_path is source path, and medical image is in local store path；
The Des_path is purpose path, the image data final path to be uploaded.
The Msg_flag, to judge whether message handles successful mark, if the value of Msg_flag has indicated message for 1
Through being successfully processed, if value indicates Message Processing failure for 0.
The Activityid, the corresponding Activityid of one acquisition image data, i.e. a people deposit in some day
All image datas of storage, Activityid can determine the specific date；
The ProjectID, a ProjectID can correspond to the multiple medical data of patient, by ProjectID and
Activityid uniquely determines the image sequence of user's storage.
The Time, for the time for creating message；
The UserID sends the user identifier ID of message, and the data space for saving the user is named.
The step 4, as shown in Figure 3, the specific steps are as follows:
Step 4.1: user issues data storage request by client, produces message, and client sends a message to message
Queue；
Step 4.2: after message queue receives message, which being arranged in message queue sequentially in time, often
A queue
In message according to the structural arrangement of message header and message body, and send and be prompted to client and receive message；
Step 4.3: message queue is according to message different type, sequentially in time, message is pushed to different message
In process；
Step 4.4: when message procedure processing, data are called from local temporary files catalogue, are arranged sequentially in time
Data extract data header information, and send database for head information and save, while sending out by compressing file, and by compressed file
It is sent to cloud storage；
Step 4.5: if message procedure processing in there is mistake, by the message reappose in message queue, again
Queuing is handled, and is gone in step 4.3；
The client, as shown in figure 4, can also be third party system, it is local to face if client is third party system
When file directory be third party's temporary file directory, and the data in the catalogue are communicated by tls protocol, and with symmetrically adding
Close algorithm encrypts data；
Based on above-mentioned parallel memorizing method, if there is third party system (such as traditional PACS system) to want to guarantee that data are quasi-
Really, it is safely stored into cloud storage service end, generally VPN (Virtual Private Network) is used, dedicated network is established on community network,
Carry out encryption communication.But creation and deployment VPN route are difficult, and it is at high cost, it is unreliable.In response to this, the present invention designs
A kind of data transfer mode being based on TLS (secure transport layer protocol) passes through Internet upload in the case where no VPN
Medical image data.Medical image data transmission process of the third party system based on tls protocol is as shown in figure 4, proxy call sheet
Api interface in system realizes subscriber authentication, creation ProjectID, sends data, send message, disconnect etc. one
Series function.Agency and cloud storage service end can realize the friendship of session key using rivest, shamir, adelman according to tls protocol
Mutually, the session key of symmetric encipherment algorithm carries out the encryption and decryption of image data, guarantees the reliable memory of data.Third party
Agency need to be only embedded in storing data.It is directly embedded into the mode of third party system using agency, both can be convenient
It is integrated with third party, also avoid the overlapping development of module.
As shown in Figure 4, the specific steps are as follows:
Step 1: third party system sends user information to Cloud Server, carries out verifying login, if login authentication success,
Cloud Server return logins successfully information, goes to step 2, if login authentication is unsuccessful, Cloud Server returns to login failure letter
Breath, and re-start login authentication；
Step 2: after user normally logs in, third party system sends project number ProjectID to Cloud Server, cloud service
Device searches whether that there are project number ProjectID in the database, if it does not exist, then creates a project number
ProjectID is simultaneously saved in the database, while Cloud Server transmission has created project number information to third party system；If
In the presence of need not then create project number ProjectID, while Cloud Server sends existing project number information and gives third party system
System；
Step 3: third party system sends data to Cloud Server, and data are saved to third party system temporary file mesh
Record, and send the data in Message Processing process, and Cloud Server sends data and is saved information to third party system；
Step 4: third party system sends a message to message queue, after message queue receives message, by the message according to
Time sequencing is arranged in message queue, and transmission is prompted to third party system and receives message；Message Processing process is opened simultaneously,
And by the data call in third party system temporary file directory into Message Processing process, after process, by all numbers
According to being saved in cloud storage and database；
Step 5: third party system receives the prompt of Cloud Server message queue, then disconnects and this time connecting, cancellation and cloud
The connection of server.
Based on foregoing invention content, the test HDFS cluster service of 10 nodes, as Fig. 5, Fig. 6 and Fig. 7 are opened up respectively
The process of storing data is shown.Prove that the method for the invention may be implemented and be effective.
Claims (4)
1. a kind of cloud storage service method based on asynchronous message, which is characterized in that specific step is as follows: step 1: client hair
It send user information to Cloud Server, carries out verifying login, if login authentication success, Cloud Server return logins successfully information,
Step 2 is gone to, if login authentication is unsuccessful, Cloud Server returns to login failure information, and re-starts login authentication；
Step 2: after user normally logs in, client sends project number ProjectID to Cloud Server, and Cloud Server is in data
It searches whether that there are project number ProjectID in library, if it does not exist, then creates a project number ProjectID and save
In the database, while Cloud Server transmission has created project number information to client；If it exists, then project need not be created
Number ProjectID, while Cloud Server sends existing project number information to client；
Step 3: client sends data to Cloud Server, and data are saved to local temporary files catalogue, and data are sent
To in Message Processing process, and Cloud Server sends data and is saved information to client；
Step 4: client sends a message to message queue, after message queue receives message, sequentially in time by the message
It is arranged in message queue, and transmission is prompted to client and receives message；Message Processing process is opened simultaneously, and will be local interim
Data call in file directory is into Message Processing process, after process, by all data be saved in cloud storage and
In database；
Step 5: client receives the prompt of Cloud Server message queue, then disconnects and this time connecting, and nullifies and Cloud Server
Connection.
2. the cloud storage service method based on asynchronous message according to claim 1, which is characterized in that the message queue,
Including message header and message body；
The message header include: ProjectID, Encryption, Msg_type, Src_path, Des_path, Msg_flag,
Activityid,Time,UserID；
The ProjectID is project number, is uniquely to identify in the database；The Encryption, to judge data
The mark whether encrypted, that is, judge whether data come from third party system；If the value of Encryption indicates that the data are these for 0
Ground data, if the value of Encryption indicates that the data are that third party system passes data by 1；
The Msg_type, is type of message, and message queue transmits the message to corresponding message queue according to type of message；
The type of message, specifically includes: online image data storage message, online image data and data reporting storage disappear
Breath, offline image data storage message, offline image data and data reporting store message；
The Src_path is source path, and medical image is in local store path；
The Des_path is purpose path, the image data final path to be uploaded；
The Msg_flag, to judge whether message handles successful mark, if the value of Msg_flag be 1 indicate message at
Function processing, if value indicates Message Processing failure for 0；
The Activityid, the corresponding Activityid of one acquisition image data, i.e. a people store in some day
All image datas, Activityid can determine the specific date；
The ProjectID, a ProjectID can correspond to the multiple medical data of patient, by ProjectID and
Activityid uniquely determines the image sequence of user's storage；
The Time, for the time for creating message；
The UserID sends the user identifier ID of message, and the data space for saving the user is named.
3. the cloud storage service method based on asynchronous message according to claim 1, which is characterized in that the step 4, specifically
Steps are as follows:
Step 4.1: user issues data storage request by client, produces message, and client sends a message to message queue；
Step 4.2: after message queue receives message, which being arranged in message queue sequentially in time, each team
Message in column and sends according to the structural arrangement of message header and message body and is prompted to client and receives message；
Step 4.3: message queue is according to message different type, sequentially in time, message is pushed to different message procedures
In；
Step 4.4: when message procedure processing, data are called from local temporary files catalogue, arrange data sequentially in time,
Data header information is extracted, and sends database for head information and saves, while being sent to cloud by compressing file, and by compressed file
Memory；
Step 4.5: if there is mistake in message procedure processing, which being reapposed with message queue, is requeued
It is handled, is gone in step 4.3.
4. the cloud storage service method based on asynchronous message according to claim 1, which is characterized in that the client, also
It can be third party system, if client is third party system, local temporary files catalogue is third party's temporary file directory,
And the data in the catalogue are communicated by tls protocol, and are encrypted with symmetric encipherment algorithm to data.
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Cited By (6)
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| CN110764930A (en) * | 2019-10-21 | 2020-02-07 | 中国民航信息网络股份有限公司 | Request or response processing method and device based on message mode |
| CN111556128A (en) * | 2020-04-24 | 2020-08-18 | 深圳警翼软件技术有限公司 | Data transmission method and system |
| CN112487218A (en) * | 2020-11-27 | 2021-03-12 | 北京百度网讯科技有限公司 | Content processing method, system, device, computing equipment and storage medium |
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