CN113204525A - Document preview management system based on distributed storage system - Google Patents
Document preview management system based on distributed storage system Download PDFInfo
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- CN113204525A CN113204525A CN202110760866.2A CN202110760866A CN113204525A CN 113204525 A CN113204525 A CN 113204525A CN 202110760866 A CN202110760866 A CN 202110760866A CN 113204525 A CN113204525 A CN 113204525A
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- G06F16/10—File systems; File servers
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Abstract
The invention discloses a document preview management system based on a distributed storage system, which aims to solve the problems that the prior document preview cannot reasonably select a corresponding preview format according to the performance of an access terminal, so that the loading is slow when the document is previewed, and the preview waiting time is long; the preview management module is used for receiving reservation request information input by a user through an access terminal and feeding back a terminal acquisition instruction; receiving terminal preview information, performing preview analysis on the terminal preview information to obtain a preview value, and matching a corresponding document preview format according to the preview value; according to the method, the preview access is carried out according to the matching of the preview value and the corresponding document preview format, so that the preview content is reasonably accessed; when the access terminal previews, the corresponding document preview format is reloaded to the next accessed document, so that the access terminal can preview the document content at the first time, and the waiting time of the preview buffer is reduced.
Description
Technical Field
The invention relates to the technical field of document preview management, in particular to a document preview management system based on a distributed storage system.
Background
With the deep development of the internet industry, a large number of documents can be uploaded and previewed to a system every day, the browsing of the traditional documents comprises documents in formats such as doc, xls, ppt, docx, pptx, pdf, swf and the like, and in order to achieve the purpose of information office, the uploaded documents can be previewed at a browser end only by converting the documents into swf formats;
when a document is previewed through a computer, due to hardware factors and other factors of the computer, a preview loading buffer appears when the document is previewed, so that the preview waiting time is increased;
a document online preview method and a system thereof are disclosed in the notice No. CN106777179B, and the document online preview method comprises the following steps: acquiring an original file; respectively converting each page of the original file into a corresponding picture to obtain a corresponding picture set; when a page preview request initiated by a user terminal for a target page in an original file is acquired, pictures corresponding to the target page are screened out from the picture set, and the pictures are sent to the user terminal; although the corresponding pictures of the page needing to be previewed by the user are sent to the user, the flow consumption is reduced when the user previews the pictures, the user can specify the pictures of the page needing to be previewed, the whole file is not required to be downloaded and previewed, meanwhile, a specific program is not required to be installed, the pictures can be directly read, and the user experience is improved; but has the following disadvantages: the corresponding preview format cannot be reasonably selected according to the performance of the access terminal, so that the quality of the preview content of the user is low;
therefore, it is necessary to design a scheme that can reduce the preview waiting time of the user and further improve the preview quality on the basis of the preview waiting time.
Disclosure of Invention
The invention aims to provide a document preview management system based on a distributed storage system, aiming at solving the problems that the prior document preview cannot reasonably select a corresponding preview format according to the performance of an access terminal, so that the loading is slow when a document is previewed, and the preview waiting time is long.
The purpose of the invention can be realized by the following technical scheme: a document preview management system based on a distributed storage system comprises the distributed storage system and a document preview management subsystem, wherein the distributed storage system is in data exchange connection with the document preview management subsystem, the distributed storage subsystem is used for storing documents in a distributed mode, and the document preview management subsystem comprises a preview management module;
the preview management module is used for receiving reservation request information input by a user through an access terminal and feeding back a terminal acquisition instruction; the terminal acquisition instruction is used for triggering the access terminal to send the terminal preview information to the preview management module;
receiving terminal preview information, performing preview analysis on the terminal preview information to obtain a preview value, and matching a corresponding document preview format according to the preview value; analyzing the preview request information to acquire a preview request document, generating a corresponding document acquisition signaling, and sending the document acquisition signaling and the document preview format to a distributed storage system; the document acquisition signaling is used for triggering the distributed storage system to search for a document in a corresponding document preview format, and generating and feeding back a preview URL corresponding to the document;
signing the preview URL, simultaneously generating a preview acquisition instruction, and sending the signed preview URL and the preview acquisition instruction to the access terminal; after receiving the preview URL, the access terminal directly previews the access domain name to view the document in the corresponding document preview format; the preview acquisition instruction is used for triggering the access terminal to access the preview access data of the document and feeding back the preview access data;
analyzing the preview access data to obtain a new preview value of the access terminal, re-matching the new preview value with a corresponding document preview format, feeding back the re-matched document preview format to the distributed storage system when the matched document preview format is different from the document preview format during initial preview, so as to obtain a new preview URL of a next adjacent buffer file fed back by the distributed storage system, signing the new preview URL, simultaneously generating a preview acquisition instruction, and sending the signed new preview URL and the preview acquisition instruction to the access terminal; after receiving the new preview URL, the access terminal directly previews the access domain name to check and re-matches the next adjacent buffer file in the document preview format; the method comprises the steps of sequentially dividing documents with different document preview formats into a plurality of buffer files from top to bottom, wherein each buffer file comprises at least two pages of document contents.
As a preferred embodiment of the present invention, the terminal preview information includes a CPU utilization, a download rate, and a model of the access terminal.
As a preferred embodiment of the present invention, the specific process of performing preview analysis on the terminal preview information to obtain the preview value is as follows:
setting the models of all the access terminals to correspond to a preset model value, and matching the models of the access terminals with the models of all the access terminals to obtain corresponding preset model values; normalizing the preset model value, the CPU utilization rate and the download rate, taking the numerical values of the model value, the CPU utilization rate and the download rate, and performing weighted calculation on the numerical values to obtain a preview value; the preview value is a numerical value used for selecting a document preview format obtained by normalizing the parameters corresponding to the access terminal.
As a preferred embodiment of the present invention, the document preview formats all correspond to a matching range, and when the preview value is within the matching range, the document preview format matched with the preview value is the document preview format corresponding to the matching range.
In a preferred embodiment of the present invention, the preview access data includes a buffer where the access terminal accesses the document, an initial time, an end time or a current time of accessing the buffer, a position of a close button of the access document, a position of a mouse pointer, and a slide-down rate of a scroll bar of the document.
As a preferred embodiment of the present invention, a specific process of analyzing preview access data is as follows: analyzing the initial time, the ending time or the current time of accessing the buffer file and the gliding rate of the document scroll bar, and simultaneously analyzing the position of a closing button of the accessed document and the position of a mouse pointer;
analyzing the initial time, the end time or the current time of accessing the buffer file and the gliding rate of the document scroll bar as follows: calculating the time difference between the initial time and the ending time of accessing the buffer file or the current time to obtain the access duration of the buffer file; normalizing the access duration and the glide rate of the document scroll bar, taking the numerical values of the access duration and the glide rate, and performing weighted calculation on the numerical values to obtain a new preview value;
analyzing the position of the access document closing button and the position of a mouse pointer, and calculating the distance difference between the position of the mouse pointer and the position of the access document closing button to obtain a closing distance; calculating the difference between two adjacent closing distances to obtain a distance change value, summing all the distance change values to obtain a change total value, and calculating the distance difference between the position of the mouse pointer at the current moment and the position of a closing button for accessing the document to obtain the current distance; normalizing the current distance and the total change value, taking the numerical value of the current distance and the total change value, and analyzing the numerical value to obtain a preview closer value; the preview closing machine value is a numerical value used for evaluating the probability of closing the preview document by the access terminal, which is obtained by carrying out normalization processing comprehensive calculation on parameters corresponding to preview access of the access terminal; when the preview closer value is smaller than the set preview close threshold value, matching the new preview value; when the preview closer value is equal to or greater than the preview close threshold value, no operation is performed.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the reservation request information input by the access terminal is sent to the preview management module, the preview management module feeds back a terminal acquisition instruction and receives the terminal preview information, previews the terminal preview information to obtain a preview value, and performs preview access according to the preview value and the corresponding document preview format, so that the preview content is reasonably accessed, the phenomenon that the preview loading time is longer and the waiting time is longer due to overlarge access preview content is avoided;
2. when the access terminal previews, the access terminal previews the preview access data, analyzes the preview access data to obtain a new preview value of the access terminal, matches the new preview value with the corresponding document preview format again, and conveniently reloads the corresponding document preview format for the next accessed document, so that the access terminal can preview the document content at the first time, and the waiting time for previewing and buffering is reduced;
the method and the device analyze the position of the access terminal for accessing the document closing button and the position of the mouse pointer to obtain the preview closing machine value, determine whether to analyze the next buffer file or not according to the preview closing machine value, and avoid the resource waste caused by analyzing the content without the preview document again when the access terminal is about to close the preview document.
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In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a diagram of a preview loading interface according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations or operations have not been shown or described in detail to avoid obscuring aspects of the invention.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The first embodiment is as follows:
referring to fig. 1, a document preview management system based on a distributed storage system includes a distributed storage system and a document preview management subsystem, where the distributed storage system is in data exchange connection with the document preview management subsystem, and documents in the distributed storage subsystem are stored separately, and the distributed storage subsystem may have any number of nodes for distributed storage according to implementation requirements. The node may be a server or a computer terminal, for example, the distributed storage subsystem may be a server cluster formed by a plurality of servers, and the like, and is used for storing and managing documents; the server may be a server cluster composed of a plurality of servers, or the like;
the document preview management subsystem comprises a preview management module;
the preview management module receives reservation request information input by a user through an access terminal and feeds back a terminal acquisition instruction to the access terminal; after receiving a terminal acquisition instruction, the access terminal acquires the CPU utilization rate, the download rate and the model of the access terminal, marks the CPU utilization rate, the download rate and the model as terminal preview information, and sends the terminal preview information to a preview management module; the access terminal is a computer terminal and comprises a notebook computer and a desktop computer;
the preview management module receives and analyzes the terminal preview information, and specifically comprises the following steps: setting the models of all the access terminals to correspond to a preset model value, matching the models of the access terminals with the models of all the access terminals to obtain the corresponding preset model value, and marking the value as MK 1; marking the CPU utilization rate and the download rate as MK2 and MK3 respectively; normalizing the preset model value, the CPU utilization rate and the download rate, taking the numerical values, weighting the numerical values, and setting the weights of the preset model value, the CPU utilization rate and the download rate as ds1, ds2 and ds3 respectively; obtaining a preview value YL of the access terminal by using a formula YL = MK1 × ds1+ ds 2/(MK 2+ 1) + MK3 × ds 3; the document previewing method comprises the steps that the document previewing format is obtained through a formula, the larger the preset model value is, the smaller the CPU utilization rate is, the larger the downloading rate is, the larger the previewing value is, the stronger the document previewing capability of the access terminal is, and the higher the definition of the document corresponding to the document previewing format is matched; ds1, ds2, and ds3 are set appropriately by those skilled in the art according to the actual situation, and may be 0.4, 0.2, 0.4;
matching a corresponding document preview format according to the preview value; the document preview formats correspond to a matching range, and when the preview value is in the matching range, the document preview format matched with the preview value is the document preview format corresponding to the matching range; each document preview format corresponds to different definitions, the larger the document preview format matching range is, the higher the corresponding definition is, and the larger the size of the preview content is; when the preview value is 6.1 as in the matching range of the document preview format a1 (5, 10), the document preview format a1 is matched; accessing the document content with the definition corresponding to the direct document preview format;
dividing documents with different document preview formats into a plurality of buffer files from top to bottom in sequence, wherein each buffer file comprises at least two pages of document contents;
analyzing the preview request information to acquire a preview request document and generate a corresponding document acquisition signaling, sending the document acquisition signaling and a document preview format to a distributed storage system, searching the document in the corresponding document preview format by the distributed storage system, generating a preview URL corresponding to the document and feeding the preview URL back to a preview management module;
the preview management module signs the preview URL, generates a preview acquisition instruction at the same time, and sends the signed preview URL and the preview acquisition instruction to the access terminal; after receiving the preview URL, the access terminal directly previews the access domain name to view the document in the corresponding document preview format; the preview acquisition instruction is used for triggering the access terminal to access the preview access data of the document and feeding back the preview access data, wherein the preview access data comprises a buffer where the access terminal accesses the document, the initial time, the end time or the current time of accessing the buffer, the position of a closing button of the access document, the position of a mouse pointer and the glide rate of a document scroll bar;
analyzing the preview access data to obtain a new preview value of the access terminal, and analyzing the initial time, the ending time or the current time of accessing the buffer file and the glide rate of the document scroll bar;
re-matching the new preview value with the corresponding document preview format, feeding back the re-matched document preview format to the distributed storage system when the matched document preview format is different from the document preview format during initial preview so as to obtain a new preview URL of a next adjacent buffer fed back by the distributed storage system, signing the new preview URL, simultaneously generating a preview acquisition instruction, and sending the signed new preview URL and the preview acquisition instruction to the access terminal; after receiving the new preview URL, the access terminal directly previews the access domain name to check and re-matches the next adjacent buffer file in the document preview format; when the access terminal previews the buffer for a long time, the next adjacent buffer can be loaded with the document content with higher definition, and when the access terminal previews the buffer for a short time and is faster, the next adjacent buffer can be loaded with the document content with low definition, so that the access terminal can preview the document content at the first time, and the waiting time for previewing the buffer is reduced;
analyzing the initial time, the end time or the current time of accessing the buffer file and the gliding rate of the document scroll bar as follows: calculating the time difference between the initial time and the ending time of accessing the buffer file or the current time to obtain the access duration of the buffer file; normalizing the access duration and the glide rate of the document scroll bar, taking the numerical values of the access duration and the glide rate, and performing weighted calculation on the numerical values to obtain a new preview value; the numerical values of the access duration and the slide-down rate of the document scroll bar are respectively marked as MK4 and MK 5; the corresponding weight coefficients are ds4 and ds5, respectively; obtaining a new preview value XL by using a formula XL = MK4 × ds4+ (1/MK 4) × ds 5; when the access terminal previews the content of one buffer file of the document, if the access duration is longer, the downslide rate is smaller, and the new preview value is larger, the next adjacent buffer file is previewed again, and the content of the buffer file with better definition is loaded; when the access duration is shorter and the slide-down rate is higher, the new preview value is smaller, and the content of the buffer file with lower definition is loaded by previewing the next adjacent buffer file again; when the access terminal accesses the document content, the document preview content is still displayed and buffered in the loading process, so that the waiting time of the access terminal for previewing the content is increased undoubtedly; the gliding speed of the scroll bar is obtained in unit time according to the gliding position of the scroll bar in unit time;
example two:
referring to fig. 2, on the basis of the above, analyzing the position of the access document close button and the position of the mouse pointer specifically includes:
analyzing the position of the access terminal for accessing the document closing button and the position of the mouse pointer, and calculating the distance difference between the position of the mouse pointer and the position of the access document closing button to obtain a closing distance; calculating a difference value between two adjacent closing distances to obtain a distance change value, wherein when the distance change value is a positive value, the distance change value indicates that the mouse pointer changes to move to a position close to a closing button for accessing the document; when the value is negative, the movement is indicated to a position far away from the access document closing button;
summing all the distance change values to obtain a change total value, and calculating the distance difference between the position of the mouse pointer at the current moment and the position of the document access closing button to obtain the current distance; normalizing the current distance and the total change value, taking the values of the current distance and the total change value, setting the occupied weights of the current distance and the total change value respectively, multiplying the values by the corresponding weights, and summing to obtain a preview closer value; the current distance is inversely proportional to a preview closer value, wherein the preview closer value is a numerical value for evaluating the probability of closing the preview document by the access terminal, which is obtained by performing normalization processing and comprehensive calculation on parameters corresponding to preview access by the access terminal; when the preview closer value is smaller than the set preview close threshold value, matching the new preview value; when the preview closer value is greater than or equal to the preview close threshold value, no operation is executed; the larger the total value of the change is, namely the closer the total value moves to the direction of closing the button for accessing the document, the smaller the current distance is, the larger the value of the previewing closer machine is, and the higher the probability of closing the previewing document is; the smaller the probability of analyzing the new preview value for the next buffer is; therefore, the problem that when the preview document is to be closed, the content without the preview document is analyzed again to cause resource waste is avoided;
when the method is used, a user inputs reservation request information to the preview management module through the access terminal, the preview management module feeds back a terminal acquisition instruction and receives terminal preview information, previews the terminal acquisition instruction and receives the terminal preview information to obtain a preview value, and previews and accesses according to a corresponding document preview format matched with the preview value, so that the preview content is reasonably accessed, and the phenomenon that the access preview content is too large, the preview loading time is long, and the waiting time is long is avoided; when the access terminal previews, the previewing access data of the access terminal are obtained and analyzed to obtain a new previewing value of the access terminal, the new previewing value is matched with the corresponding document previewing format again, and the corresponding document previewing format is conveniently reloaded on the next accessed document, so that the access terminal can preview the document content at the first time, and the waiting time for previewing and buffering is reduced; analyzing the position of the access terminal for accessing the document closing button and the position of the mouse pointer to obtain a preview closing machine value, and determining whether to analyze the next buffer file or not according to the preview closing machine value, so that the problem that when the access terminal is about to close the preview document, the content without the preview document is analyzed again to cause resource waste is avoided.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A document preview management system based on a distributed storage system comprises the distributed storage system and a document preview management subsystem, wherein the distributed storage system is in data exchange connection with the document preview management subsystem, and the distributed storage subsystem is used for storing documents in a distributed manner;
the preview management module is used for receiving reservation request information input by a user through an access terminal and feeding back a terminal acquisition instruction; the terminal acquisition instruction is used for triggering the access terminal to send the terminal preview information to the preview management module;
receiving terminal preview information, performing preview analysis on the terminal preview information to obtain a preview value, and matching a corresponding document preview format according to the preview value; analyzing the preview request information to acquire a preview request document, generating a corresponding document acquisition signaling, and sending the document acquisition signaling and the document preview format to a distributed storage system; the document acquisition signaling is used for triggering the distributed storage system to search for a document in a corresponding document preview format, and generating and feeding back a preview URL corresponding to the document;
signing the preview URL, simultaneously generating a preview acquisition instruction, and sending the signed preview URL and the preview acquisition instruction to the access terminal; after receiving the preview URL, the access terminal directly previews the access domain name to view the document in the corresponding document preview format; the preview acquisition instruction is used for triggering the access terminal to access the preview access data of the document and feeding back the preview access data;
analyzing the preview access data to obtain a new preview value of the access terminal, re-matching the new preview value with a corresponding document preview format, feeding back the re-matched document preview format to the distributed storage system when the matched document preview format is different from the document preview format during initial preview, so as to obtain a new preview URL of a next adjacent buffer file fed back by the distributed storage system, signing the new preview URL, simultaneously generating a preview acquisition instruction, and sending the signed new preview URL and the preview acquisition instruction to the access terminal; after receiving the new preview URL, the access terminal directly previews the access domain name to check and re-matches the next adjacent buffer file in the document preview format; the method comprises the steps of sequentially dividing documents with different document preview formats into a plurality of buffer files from top to bottom, wherein each buffer file comprises at least two pages of document contents.
2. The document preview management system based on the distributed storage system of claim 1, wherein the terminal preview information includes CPU utilization, download rate and model of the access terminal.
3. The document preview management system based on the distributed storage system according to claim 2, wherein the specific process of performing preview analysis on the terminal preview information to obtain the preview value is as follows:
setting the models of all the access terminals to correspond to a preset model value, and matching the models of the access terminals with the models of all the access terminals to obtain corresponding preset model values; normalizing the preset model value, the CPU utilization rate and the download rate, taking the numerical values of the model value, the CPU utilization rate and the download rate, and performing weighted calculation on the numerical values to obtain a preview value; the preview value is a numerical value used for selecting a document preview format obtained by normalizing the parameters corresponding to the access terminal.
4. The document preview management system based on the distributed storage system of claim 1, wherein the document preview formats correspond to a matching range, and when the preview value is within the matching range, the document preview format matched with the preview value is the document preview format corresponding to the matching range.
5. The document preview management system of claim 1, wherein the preview access data includes a buffer in which the access terminal accesses the document, an initial time, an end time or a current time of accessing the buffer, a position of a close button of accessing the document, a position of a mouse pointer, and a slide-down rate of a scroll bar of the document.
6. The document preview management system based on the distributed storage system of claim 5, wherein the specific process of analyzing the preview access data is as follows: analyzing the initial time, the ending time or the current time of accessing the buffer file and the gliding rate of the document scroll bar, and simultaneously analyzing the position of a closing button of the accessed document and the position of a mouse pointer;
analyzing the initial time, the end time or the current time of accessing the buffer file and the gliding rate of the document scroll bar as follows: calculating the time difference between the initial time and the ending time of accessing the buffer file or the current time to obtain the access duration of the buffer file; normalizing the access duration and the glide rate of the document scroll bar, taking the numerical values of the access duration and the glide rate, and performing weighted calculation on the numerical values to obtain a new preview value;
analyzing the position of the access document closing button and the position of a mouse pointer, and calculating the distance difference between the position of the mouse pointer and the position of the access document closing button to obtain a closing distance; calculating the difference between two adjacent closing distances to obtain a distance change value, summing all the distance change values to obtain a change total value, and calculating the distance difference between the position of the mouse pointer at the current moment and the position of a closing button for accessing the document to obtain the current distance; normalizing the current distance and the total change value, taking the numerical value of the current distance and the total change value, and analyzing the numerical value to obtain a preview closer value; the preview closing machine value is a numerical value used for evaluating the probability of closing the preview document by the access terminal, which is obtained by carrying out normalization processing comprehensive calculation on parameters corresponding to preview access of the access terminal; when the preview closer value is smaller than the set preview close threshold value, matching the new preview value; when the preview closer value is equal to or greater than the preview close threshold value, no operation is performed.
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| CN109558554A (en) * | 2018-12-11 | 2019-04-02 | 浪潮(北京)电子信息产业有限公司 | A kind of online method for previewing of document based on distributed objects storage system |
| CN110582764A (en) * | 2019-07-11 | 2019-12-17 | 深圳市鹰硕技术有限公司 | file preview method, device and storage medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114153905A (en) * | 2021-11-05 | 2022-03-08 | 海南航众科技有限公司 | Document preview implementation system |
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