CN105354254A - Method for converting document file format by using node server - Google Patents
Method for converting document file format by using node server Download PDFInfo
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- CN105354254A CN105354254A CN201510686353.6A CN201510686353A CN105354254A CN 105354254 A CN105354254 A CN 105354254A CN 201510686353 A CN201510686353 A CN 201510686353A CN 105354254 A CN105354254 A CN 105354254A
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Abstract
The present invention proposes a method for converting a document file format by using a node server. The method comprises the following steps of: acquiring a file that needs format conversion; determining whether a format of the file is a document format; performing initialization processing on the file in the document format; configuring a file page number contained in each conversion sub-task according to a preset parameter, and dividing the file in the document format into a plurality of conversion sub-tasks; and respectively sending the plurality of conversion sub-tasks to a plurality of document conversion nodes which do not have the conversion sub-tasks to be processed currently, and performing format conversion processing on the plurality of conversion sub-tasks. According to the method for converting the document file format by using the node server, provided by the present invention, the file in the document format can be converted by using P2P nodes, thereby improving the speed of file format conversion, and reducing processing burden of the server and a user terminal.
Description
Technical field
The present invention relates to computer documents process field, and in particular to a kind of method utilizing node server to carry out document format conversion.
Background technology
Along with the development of internet, utilize network to carry out live or program request and become a kind of trend gradually, slowly be dissolved in daily life, form focus in work, study and the various aspects such as amusement, be video conference, that online education or Web TV, video website are all applied is more and more extensive.Particularly under the universal overall background of computing machine, intelligent mobile terminal and WIFI, 3G, 4G wireless network, user to watch activity that is live or program request online by computing machine or intelligent mobile terminal equipment and user will be made to obtain relevent information become more convenient in any place having network to connect.The activity such as online education, video conference is able to present to final user preferably by multimedia form by live or order program service.
The application such as existing online education, video conference often can use interactive electronic blackboard as demo platform; very important effect has been served in raising quality of presentation and efficiency; in interactive electronic blackboard, the use of shared document is more and more frequent; presentation file (as office document, PDF document, multimedia file etc.) can be uploaded to demo platform and open by user, can carry out annotating and commenting on and the operation such as explanation in presentation process.When the presentation file of different-format is uploaded to demo platform, the interactive demonstration file layout that it is supported can be converted to, such as, be converted to swf formatted file.
Described file layout transfer process is usually put on user terminal or server and completes, when file layout conversion is carried out at user terminal, ultimate principle due to transcoding is first decoded to file, then encode by the coded system of the form that will change, need to carry out a large amount of data processing work, thus need to carry out the longer time, the home computer general for cpu performance or intelligent mobile terminal equipment, burden is heavier, conversion efficiency is lower, relatively large file is when carrying out format conversion, wait for that the time that format conversion completes becomes and cannot stand, the overlong time of file layout conversion can make Consumer's Experience poor.And when file layout conversion is carried out on the server, the user terminal of serving due to it is more, and the task of carrying out file layout conversion also can be more simultaneously simultaneously, this can cause larger burden to server, thus affects providing of other services.
Peer-to-peer network is emerging network technology recent years, relative to traditional C/S model, the feature of a P2P pattern highly significant be exactly node without the need to Dependency Set Chinese style server resource, each node can directly communicate.P2P is the abbreviation of peer to peer connection peertopeer pattern.P2P technology be a kind of between different terminals user, directly exchange the technology of data or service without trunking.It has broken traditional Client/Server pattern, and in a peer-to-peer network, the status of each node is identical, possesses client and server dual nature, can simultaneously as service user and ISP.The core of P2P utilizes user resources, carries out file transfer by Peer, and this is different from traditional client server computation model completely.P2P, by the design of " decentralization " and multicast communication mechanism, achieves not reliance server and swap file fast.
How in Appropriate application P2P network, the idling-resource of subscriber terminal equipment carries out file layout conversion, is technical matters solved by the invention.
Summary of the invention
The present invention proposes a kind of method utilizing node server to carry out document format conversion, and P2P node can be utilized to carry out document format file transform, effectively improves the speed of file layout conversion, and reduces the processing load of server and user terminal.
In order to achieve the above object, the present invention proposes a kind of method utilizing node server to carry out document file format conversion, comprises the following steps:
Obtain and need the file carrying out format conversion;
Whether the form judging described file is document format;
Initialization process is carried out to described document format file;
Configure according to parameter preset the file number of pages that each conversion subtask comprises, and described document format file is divided into multiple conversion subtask;
Described multiple conversion subtask is sent to respectively multiple current document subject feature vector node do not changed subtask and carry out processing, and format conversion processing is carried out to it.
Further, described document format determination methods is for judge according to file suffixes name.
Further, when described file is multimedia form, sends it to multimedia switching node and carry out format conversion.
Further, the initialization process of described document format file for judge whether described file is encrypt file or illegal file, and calculates the number of pages of described document format file.
Further, when the number of pages of described document format file is 0, empty file is labeled as and announcement server.
Further, when the number of pages of described document format file cannot be divided exactly by parameter preset, the residue number of pages after dividing exactly is distributed as last conversion subtask.
Further, when the quantity of document subject feature vector node is less than the quantity of described conversion subtask, previous unappropriated conversion subtask is automatically distributed to any document subject feature vector node completing conversion subtask in order and is processed.
Further, when there being document subject feature vector node to leave, the conversion subtask that it is processing is removed and is ordered into the last etc. pending of all conversion subtask queues.
Further, described format conversion processing is carried out for being SWF formatted file or html5 formatted file by described document format file transform to document format file.
Further, described document subject feature vector node is the node server in P2P network.
Further, described document subject feature vector node is the server or virtual machine disposed in advance.
The present invention proposes a kind of method utilizing node server to carry out document format conversion, the file number of pages that each conversion subtask comprises is configured according to parameter preset, document format file is divided into multiple conversion subtask, then described multiple conversion subtask is sent to respectively multiple current document subject feature vector node do not changed subtask and carry out processing, and format conversion processing is carried out to it.The conversion method of the shelves formatted file that the present invention proposes, the server utilizing P2P node or service provider to dispose in advance or virtual machine carry out format conversion to the number of pages that document format file divides according to conversion subtask, by changing the reasonable distribution of subtask, the efficiency of effective raising file layout conversion, and avoid and adopt server or user terminal to carry out file layout conversion, reduce the processing load of server or user terminal.
Accompanying drawing explanation
Figure 1 shows that the node server that utilizes of present pre-ferred embodiments carries out the method flow diagram of document file format conversion.
Embodiment
Provide the specific embodiment of the present invention below in conjunction with accompanying drawing, but the invention is not restricted to following embodiment.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only for object that is convenient, the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1, Figure 1 shows that the node server that utilizes of present pre-ferred embodiments carries out the method flow diagram of document file format conversion.The present invention proposes a kind of method utilizing node server to carry out document file format conversion, comprises the following steps:
Step S100: obtain and need the file carrying out format conversion;
Step S200: whether the form judging described file is document format;
Step S300: initialization process is carried out to described document format file;
Step S400: configure according to parameter preset the file number of pages that each conversion subtask comprises, and described document format file is divided into multiple conversion subtask;
Step S500: described multiple conversion subtask is sent to respectively multiple current document subject feature vector node do not changed subtask and carry out processing, and format conversion processing is carried out to it.
According to present pre-ferred embodiments, described document format determination methods is for judge according to file suffixes name.The suffix name of described document format file comprises the file suffixes name corresponding to document files that ppt file, word file, excel file, pdf file and system are supported.When the suffix name of file belong to above-mentioned support document files suffix name one of them time, judge that it is document format file.Such as, when file suffixes is called .doc or .docx, judge that it is word file.
Further, when described file is multimedia form, sends it to multimedia switching node and carry out format conversion.According to the suffix name of file, when there is the suffix name of picture format or audio frequency and video form, judge that it belongs to multimedia form file, such as when the suffix of described file is called JPG, GIF or BMP, judge that it is picture format file, when the suffix of described file is called MP3, MP4 or ASF, judge that it is audio frequency and video formatted file.In addition, when the suffix name of described file does not belong to document format or the multimedia form of system support, judge that it is illegal file and announcement server.
According to present pre-ferred embodiments, the initialization process of described document format file for judge whether described file is encrypt file or illegal file, and calculates the number of pages of described document format file.When the number of pages of described document format file is 0, be labeled as empty file and announcement server.Describedly judging file whether to be illegal file be to judge that whether corresponding with its suffix name file layout file layout be consistent, judging that it is illegal file and announcement server when there is inconsistent situation.When judging that described file is encrypt file, same announcement server cannot process.
According to present pre-ferred embodiments, when the number of pages of described document format file cannot be divided exactly by parameter preset, the residue number of pages after dividing exactly is distributed as last conversion subtask.Such as, when the total page number of document format file is 62 pages, and parameter preset is when being 5, remaining 2 page files of last conversion subtask distribution etc. are pending, change the quantity of subtask into 13, change the number of pages that subtask comprises and be 5 pages for 12 above, last is changed the number of pages that subtask comprises and is 2 pages.
When the quantity of document subject feature vector node is less than the quantity of described conversion subtask, previous unappropriated conversion subtask is automatically distributed to any document subject feature vector node completing conversion subtask in order and is processed.Such as, when the quantity of document subject feature vector node is 10, and change that subtask illustrates as previous exemplary be 13, front 10 conversion subtasks distribute to this 10 document subject feature vector nodes respectively successively, remain 3 conversion subtasks can wait in line successively document subject feature vector node processing complete before conversion subtask, when there being any one document subject feature vector node to complete distributed conversion subtask process, the current untreated conversion subtask made number one will be assigned to this document subject feature vector node and process, remain untreated conversion subtask to continue to wait in line until all conversion subtask is disposed.
Further, when there being document subject feature vector node to leave, the conversion subtask that it is processing is removed and is ordered into the last etc. pending of all conversion subtask queues.Same, when there being newly-increased document subject feature vector node to add network, the current untreated conversion subtask made number one will be assigned to this document subject feature vector node and process.
Described document subject feature vector node is the node server in P2P network.Simultaneously, described document subject feature vector node server also can adopt the multiple servers oneself disposed or virtual machine to process, described multiple servers or virtual machine composition server cluster carry out distribution processor to file layout conversion subtask, and the server that service provider adopts oneself to dispose or virtual machine can strengthen the stability of Transformation Service.
According to present pre-ferred embodiments, described format conversion processing is carried out for being SWF formatted file or html5 formatted file by described document format file transform to document format file.
SWF is a kind of Flash animation file based on vector, generally creates with FLASH software and generates SWF file layout, also by corresponding software, the type files such as doc, ppt, PDF can be converted to SWF form.SWF formatted file is widely used in and creates attracting application program, and they comprise abundant video, sound, figure and animation.Original contents can be created or import them from other Adobe application program (as Photoshop or Illustrator) in Flash, the simple animation of rapid Design, and use AdobeAcitonScript3.0 to develop senior interactive item.Designer and developer can use it to create the content of PowerPoint, application program and other permission user interactions.Flash can comprise simple animation, video content, complicated PowerPoint and application program and any content between them.Designed by SWF file layout, the application such as online education, video conference can realize the interpolation of user interaction contents, thus reaches more directly perceived, lively and vivid effect.In present pre-ferred embodiments, iSpring software is adopted to carry out document file format conversion, iSpring is a interactive courseware tools, like a cork presentation file can be added sound, video, test question, mutual etc., a key is converted to the Flash film of SWF file layout simultaneously, will retain original visual and animation effect while conversion.
HTML5 is the HTML Standard Edition for replacing HTML4.01 and the XHTML1.0 standard formulated for 1999, is still in developing stage now, but some HTML5 technology supported by most of browser.HTML5 has two major features: first, enhances the performance performance of Web page.Secondly, the function of the Web application such as local data base has been added.Broad sense touch upon HTML5 time, actually refer to a set of technical combinations comprising HTML, CSS and javascript.It wishes can reduce browser for the rich network english teaching (plug-in-basedrichinternetapplication needing plug-in unit, RIA), as AdobeFlash, MicrosoftSilverlight, with the demand of OracleJavaFX, and more multipotency is provided effectively to strengthen the regular set of network application.The particularly Web-page Multi-media characteristic of HTML, the multimedia functions such as Audio, Video of its supported web page end, the APPS carried with website, camera, video/audio function brings out the best in each other, and it has support many equipment, cross-platform and adaptive advantage simultaneously.In present pre-ferred embodiments, iSpring software can be adopted equally to carry out document file format conversion, become HTML5 form to demonstrate document format file transform.
After all conversion subtasks have processed, all transformation results are collected and are merged into a presentation file according to parent page order by server, presentation file stores and is used as follow-up demonstration use by server, so far completes the format conversion process of whole document files.
In sum, the node server that utilizes that the present invention proposes carries out the method for document format conversion, the file number of pages that each conversion subtask comprises is configured according to parameter preset, document format file is divided into multiple conversion subtask, then described multiple conversion subtask is sent to respectively multiple current document subject feature vector node do not changed subtask and carry out processing, and format conversion processing is carried out to it.The conversion method of the shelves formatted file that the present invention proposes, the server utilizing P2P node or service provider to dispose in advance or virtual machine carry out format conversion to the number of pages that document format file divides according to conversion subtask, by changing the reasonable distribution of subtask, the efficiency of effective raising file layout conversion, and avoid and adopt server or user terminal to carry out file layout conversion, reduce the processing load of server or user terminal.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (11)
1. utilize node server to carry out a method for document file format conversion, it is characterized in that, comprise the following steps:
Obtain and need the file carrying out format conversion;
Whether the form judging described file is document format;
Initialization process is carried out to described document format file;
Configure according to parameter preset the file number of pages that each conversion subtask comprises, and described document format file is divided into multiple conversion subtask;
Described multiple conversion subtask is sent to respectively multiple current document subject feature vector node do not changed subtask and carry out processing, and format conversion processing is carried out to it.
2. the method utilizing node server to carry out document file format conversion according to claim 1, is characterized in that, described document format determination methods is for judge according to file suffixes name.
3. the method utilizing node server to carry out document file format conversion according to claim 1, is characterized in that, when described file is multimedia form, sends it to multimedia switching node and carries out format conversion.
4. the method utilizing node server to carry out document file format conversion according to claim 1, it is characterized in that, the initialization process of described document format file for judge whether described file is encrypt file or illegal file, and calculates the number of pages of described document format file.
5. the method utilizing node server to carry out document file format conversion according to claim 4, is characterized in that, when the number of pages of described document format file is 0, is labeled as empty file and announcement server.
6. the method utilizing node server to carry out document file format conversion according to claim 4, it is characterized in that, when the number of pages of described document format file cannot be divided exactly by parameter preset, the residue number of pages after dividing exactly is distributed as last conversion subtask.
7. the method utilizing node server to carry out document file format conversion according to claim 1, it is characterized in that, when the quantity of document subject feature vector node is less than the quantity of described conversion subtask, previous unappropriated conversion subtask is automatically distributed to any document subject feature vector node completing conversion subtask in order and is processed.
8. the method utilizing node server to carry out document file format conversion according to claim 1, it is characterized in that, when there being document subject feature vector node to leave, the conversion subtask that it is processing is removed and is ordered into the last etc. pending of all conversion subtask queues.
9. the method utilizing node server to carry out document file format conversion according to claim 1, it is characterized in that, described format conversion processing is carried out for being SWF formatted file or html5 formatted file by described document format file transform to document format file.
10. the method utilizing node server to carry out document file format conversion according to claim 1, is characterized in that, described document subject feature vector node is the node server in P2P network.
11. methods utilizing node server to carry out document file format conversion according to claim 1, is characterized in that, described document subject feature vector node is the server or virtual machine disposed in advance.
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Cited By (1)
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Address after: No. 1168, Binjiang District Road, Binjiang District, Hangzhou, Zhejiang Applicant after: Hangzhou Strong Education Technology Co., Ltd. Address before: No. 1168, Binjiang District Road, Binjiang District, Hangzhou, Zhejiang Applicant before: Hangzhou Shi Qiang network technology Co., Ltd |
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Application publication date: 20160224 |