CN103034646B - The search method of PDF sample file and device - Google Patents
The search method of PDF sample file and device Download PDFInfo
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- CN103034646B CN103034646B CN201110299954.3A CN201110299954A CN103034646B CN 103034646 B CN103034646 B CN 103034646B CN 201110299954 A CN201110299954 A CN 201110299954A CN 103034646 B CN103034646 B CN 103034646B
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Abstract
The invention provides a kind of search method and device of PDF sample file, method comprises: retrieve in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties, determines corresponding PDF sample file; Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index; The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal.Method of the present invention effectively extends the scope of retrieval, improves the efficiency of follow-up test.
Description
Technical field
The present invention relates to computer search technical field, in particular to a kind of search method and device of PDF sample file.
Background technology
In the software test procedure of printing industry, by the sample file of PDF, software is tested.These PDF sample files have the attribute for testing, as character attibute, color attribute etc.When needing a certain function of testing software, need to search the PDF sample file with respective attributes.
At present, the process retrieving the PDF sample file for testing in correlation technique comprises: PDF sample file is used for the attribute tested forms himself title according to naming rule; The attribute that the sample file determining testing has; Retrieve in the title of PDF sample file and whether comprise the attribute determined, if comprised, then using the PDF sample file retrieved as the PDF sample file being used for testing.
Because filename length is limited, can not whole attributes of log file, so the scope of searching is more limited.
Summary of the invention
The present invention aims to provide a kind of search method and device of PDF sample file, with solve above-mentioned due to filename length limited, can not whole attributes of log file, so the problem that the scope of searching is more limited.
In an embodiment of the present invention, provide a kind of search method of PDF sample file, comprising: retrieve in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties, determine corresponding PDF sample file; Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index; The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal.
In an embodiment of the present invention, additionally provide a kind of indexing unit of PDF sample file, comprising: retrieval module, for retrieving in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties; Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index; The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal; Determination module, determines corresponding PDF sample file according to the result of described retrieval.
The present invention is because adopt summary journal storage file attribute, by member record storage object attribute, so it is limited to overcome filename length, can not whole attributes of log file, the problem be limited in scope of searching, and then the file attribute reached according to storing and object properties, determine each corresponding PDF sample file, expand range of search, shorten retrieval time, improve the efficiency of follow-up test.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the process flow diagram of preferred embodiment;
Fig. 2 shows the process flow diagram in embodiment, summary journal and member record being stored into database;
Fig. 3 shows the process flow diagram being determined corresponding pdf document in embodiment in a database by retrieval summary journal and/or member record;
Fig. 4 shows the apparatus structure block diagram in embodiment.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
See Fig. 1, comprise the following steps:
S11: retrieve in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties.
Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index;
The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal.
S12: determine corresponding PDF sample file.
By the step of above-described embodiment, set up summary journal and the member record of corresponding PDF sample file in advance in a database, by the data relationship of summary journal and member record, store the whole attributes required for system in each PDF sample file.In follow-up search procedure, adopt the retrieval type containing each attribute, the attribute all by storing finds corresponding PDF sample file, effectively extends the scope of retrieval, improves the efficiency of follow-up test.
Preferably, the summary journal in above-described embodiment, member record are stored in database by following steps, see Fig. 2, comprising:
S21: select PDF sample file;
Receive the selection to each PDF sample file in file, or receive store path, according to all PDF sample files under store path batch way to acquire.
S22: resolve each PDF sample file, obtains file header, content flow file, cross-index table;
Cross-index table for recording the position of each object in content flow file, as which page, which row etc.
S23: parse each object by cross-index table in content flow file;
These object distribution are in each page of PDF sample file, and each object can be a part etc. for a character in the page or a figure or figure.
S24: file attribute identical with the file header of resolving in retrieving files community set;
In the file header of resolving, comprise multiple file attribute.These file attributes at least comprise one of following: generate the software type attribute of described PDF sample file, PDF version property, pre-color separation attribute, total page number attribute, export and describe attribute, cryptographic attributes, PDFX version property etc.
Wherein, whether pre-color separation attribute is the PDF sample file of resolving is pre-color separation file, and exporting and describing attribute is the descriptor that whether there is output.
File attribute is the set of the attribute that user pre-sets, for each file attribute in On-board test process.The set of this attribute also can be described as attribute dictionary.Each file attribute is not only stored in attribute dictionary; Preferably, also can store the attribute item of each file attribute, if file attribute is each attribute item of PDF version property.
S25: object properties identical with the object of resolving from content flow file in searching object community set;
Step S24 and S25 can perform simultaneously, also can successively perform, and the sequencing of execution does not influence each other the execution of other step.Object properties at least comprise one of following: notes content attribute, image object attribute, gradient attributes, path attribute, font attribute, font contents attribute, color space type attribute, function property, transparent attribute, fill area attribute.The object properties stored, except each attribute, yet store the attribute item of each attribute.
Specific as follows: notes content attribute [whether type of comment (WidgetType, Link, FreeText, CirCle, Polygon, Ployline, Highlight, Underline, Squiggly, StrikeOut, Stamp, Caret, Ink, FileAttachment, sound, Movie, PrinterMark, TrapNet, WaterMark, ThreeD), Widge can export, AP dictionary in N object type (flow object, dictionary object, other object)]
Image object attribute [image type (Normal, InlineImage, Mask, explictMask, ColorkeyMask, Smask), position dark (1, 2, 4, 6, 8, 16), whether exist line high be 1 image, whether there is the image that live width is 1, X-direction resolution, Y-direction resolution, whether there is default Decode, colour generation purpose, double exposure pattern, whether double exposure, whether front end is assembled, image processing type, whether front end zoom, image zoom algorithm, trasfer type, whether cut, look face quantity, whether be out of shape, whether contain UCR, whether contain BG, linked network type, whether Transfer is there is in linked network, linked network Spot type function, bHasTwoSquaresThreshold)]
Gradient attributes [type of fade, whether define background color, double exposure pattern, whether define BBox, whether containing UCR, whether be type 2 Pattern, Transfer type, whether multiple output function, whether double exposure, whether containing BG, type function, whether multi output, whether multi input, whether there is Range item]
Path attribute [path type, whether there is closed SubPath, whether there is curve, whether there is null vector, whether exist fixed-point number cross the border, draw operational character, Trasfer type, whether double exposure, whether containing UCR, whether there is multiple SubPath, whether there is not closed SubPath, whether be buffered, whether Flatness less than default value, exist close to vertical/horizontal straight line, double exposure pattern, Flatness and whether be curve, whether contain BG]
Font attribute [font type (Type0, Type1, Type3, TrueTYpe), font name, basis font name, font type of coding, width table type, whether font file is embedded, font PaintTYpe, whether synthesize runic effect, whether synthesize italic effect, whether OpenTYpe font, whether non-indirect referencing object, the whether font of Symbolic type), hidden primitive attribute (has the primitive types of OC attribute, be hidden primitive types (StrokeElement, FillElement, TextElement, ShadingElement, XobjectElement), whether nested multilayer in MarkedContent)]
Font contents attribute [TextRenderMode, TextKnockOut, existence will enter the Type3 character of cache, whether can not there is not the Type3 character of cache, existence comprises the Type3 character of Image, existence comprises the Type3 character of Form, existence comprises the Type3 character of Font, existence comprises the Type1 character of seac instruction, existence comprises the Type1 character of StemHint, existence comprises the Type1 character of CounterHint, whether the width table information in dictionary is inconsistent with the metric in font file, TransferType, existence comprises the TrueType character of Instruction, whether contain UCR, double exposure pattern, whether contain UCR, whether contain BG, whether double exposure, font type]
Color space type attribute [CS_DeviceGray, CS_DeviceRGB, CS_DeviceCMYK, CS_CalGray, CS_CalRGB, CS_ICCBased, CS_Separation, CS_DeviceN, CS_Indexed, CS_Lab, CS_Pattern]
Function property [type function (SampleFunc, ExpFunc, StitchFunc, PSFunc), whether multi output, whether multi input, whether there is Range item]
Transparent attribute [pel in transparent group, pel contain spot color, containing softImageMask, father's transparent attribute, transparent group of self attributes (Isolated, Konckout, PageGroup), transparent image status attribute (BlendMode, AIS, OP, OPM, SoftMask type, background colour)]
Fill area attribute FilterType[ASCIIHEX, ASCII85, RLE, LZW, FLATE, FAX, DCT, JBIG2, CRYPT, SUBFILE, RESTREAM, SPECIAL, JPX].
S26: store identical file attribute, object properties;
The file attribute of resolving from PDF sample file can be retrieved in file attribute set, and the file attribute retrieved is stored as a summary journal, and in summary journal, store the ID of this PDF sample file, to set up the corresponding relation of summary journal and PDF sample file.
Can store corresponding table index in summary journal, this table index points to a storage list, and for storing many member records, every bar member record is for being stored in the object properties identical with the attribute being resolved to object in content flow file retrieved in object properties set.When resolving the object in PDF sample file in content flow file, the object of each page can be resolved according to the page respectively, and retrieve in object properties.When storing, the object properties of one page in the object properties that every bar member record stores corresponding PDF sample file.
In the summary journal stored and member record, also record multiple attribute items of each file attribute or object properties, when later retrieval, according to attribute retrieval, also can retrieve according to attribute item.
Due to according to the data relationship storage file attribute of summary journal and member record and object properties, when retrieving PDF sample file, corresponding PDF sample file can be retrieved in file attribute according to retrieval type, also corresponding PDF sample file can be retrieved according to retrieval type in object properties, to reduce range of search, improve recall precision.
Preferably, also in summary journal or member record, key words sorting can be added, for identifying its Attribute class according to the type of each file attribute, object properties.
Preferably, shown in Figure 3 go out process flow diagram, by the summary journal, the member record that store in above-described embodiment, the process of retrieval PDF sample file comprises the following steps, and comprising:
S31: the retrieval type receiving input;
The test condition of customization is selected by test request; Test condition at least comprises one of following: the attribute item of file attribute, object properties, file attribute, the attribute item of object properties, Attribute class etc., also comprise the logical relation between attribute, attribute item, Attribute class in test condition.
S32: retrieve in a database according to the retrieval type received;
Retrieve in the summary journal stored in a database according to the content in retrieval type and logical relation and/or member record, search corresponding file attribute and/or object properties, or the attribute item in locating file attribute or object properties.
Such as: locating file attribute is the attribute item of PDF version property, the attribute item that object properties are image object attribute is searched.
S33: the ID obtaining each PDF sample file;
S34: the summary journal finding PDF sample file to store in a database by the ID obtained.
The ID of acquisition is recorded by the form of array.
S35: by each bar summary journal in database one by one be filled in the form of interface, with the form of paging carry out output show.
In the form of interface, can " ID "+" file path "+" filename " form store.With semicolon separated between every bar result, so that follow-up tested procedure identification.
Embodiments of the invention, after retrieval, can derive this filters out PDF sample file list according to testing requirement, and be supplied to tested software carry out batch-automated submission test.Avoid the complex operation manually each the selection result submitted to one by one tested program and bring, at the bottom of efficiency, the situation of waste resource, decreases cost of labor, reduces submission time, improve work efficiency.
Embodiments of the invention, due to attribute, the attribute item of screening can be arranged in file attribute set, object properties set, the condition of PDF attribute selection and the process of process can be adjusted dynamically according to the needs of each test process, when test purpose changes, only need by retrieval type Alternative Attribute screening conditions.Extendability as the file attribute set of attribute dictionary, object properties set is very strong, if there has been newly-increased attribute specification, only needs to revise dictionary.PDF sample file stored in database, can expand the scope of retrieval, has been convenient to later Long-Time Service and maintenance after parsing.
The present invention also provides a kind of indexing unit of PDF sample file, comprising:
Retrieval module 41, for retrieving in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties; Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index; The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal;
Determination module 42, determines corresponding PDF sample file according to the result that retrieval module 41 is retrieved.
Preferably, summary journal and/or member record are stored in database 51.
Preferably, this device also comprises:
First parsing module 43, for parsing file header from each described PDF sample file;
First judge module 44, for judging whether have the file attribute identical with file attribute set in the file header that described first parsing module 43 is resolved;
Summary journal writing module 45, if judge identical file attribute for the first judge module 44, is then stored in described identical file attribute in summary journal described in every bar corresponding to each described PDF sample file, and write into Databasce 51.
Preferably, this device also comprises:
Second parsing module 46, while going out described file header from each described PDF sample document analysis, parses content flow and cross-index table;
Locating module 47, the object of in the PDF sample file of current parse every page located by the cross-index table for being parsed by described second parsing module 46 in described content flow;
Second judge module 48 is for judging locating module 47 navigates in the object of every page whether have the object properties identical with described object properties set;
Described identical object properties if determine identical object properties for the second judge module 48, are then stored in member record described in corresponding every bar by member record writing module 49, and write into Databasce 51.
Preferably, described device also comprises:
Display module 50, for determine corresponding PDF sample file at described determination module 42 after, presents the mark of the described each PDF sample file determined, store path and title.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a search method for PDF sample file, is characterized in that, comprising:
Retrieve in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties, determine corresponding PDF sample file; Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index; The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal.
2. method according to claim 1, is characterized in that, described summary journal is generated by following steps:
File header is parsed from each described PDF sample file;
Judge whether there is in described file header the file attribute identical with file attribute set;
If had, then described identical file attribute is stored in summary journal described in every bar corresponding to each described PDF sample file.
3. method according to claim 2, is characterized in that, described member record is generated by following steps:
While going out described file header from each described PDF sample document analysis, parse content flow and cross-index table;
In described content flow, the object of in the PDF sample file of current parse every page is located by described cross-index table;
Judge whether there are in the object of described every page the object properties identical with described object properties set;
If had, then described identical object properties are stored in member record described in corresponding every bar.
4. method according to claim 1 and 2, is characterized in that, described file attribute at least comprises one of following:
Generate the software type attribute of described PDF sample file, PDF version property, pre-color separation attribute, total page number attribute, export description attribute, cryptographic attributes, PDFX version property.
5. the method according to claim 1 or 3, is characterized in that, described object properties at least comprise one of following:
Notes content attribute, image object attribute, gradient attributes, path attribute, font attribute, font contents attribute, color space type attribute, function property, transparent attribute, fill area attribute.
6. method according to claim 1, is characterized in that, described determine corresponding PDF sample file after, also comprise:
Present the mark of the described each PDF sample file determined, store path and title.
7. an indexing unit for PDF sample file, is characterized in that, comprising:
Retrieval module, for retrieving in many summary journals stored and/or member record according to the logical expression be made up of file attribute and/or object properties; Wherein, summary journal described in every bar is for storing the file attribute identical with file attribute set from each PDF sample document analysis and corresponding table index; The table that described table index points to comprises: many member records, and member record described in every bar is for storing the object properties identical with object properties set from PDF sample document analysis corresponding to described summary journal; The object properties that member record described in every bar stores derive from the one page in PDF sample file corresponding to described summary journal;
Determination module, determines corresponding PDF sample file according to the result of described retrieval.
8. device according to claim 7, is characterized in that, also comprises:
First parsing module, for parsing file header from each described PDF sample file;
Whether the first judge module, have the file attribute identical with file attribute set for judging in described file header;
Summary journal writing module, if for there being identical file attribute, is then stored in described identical file attribute in summary journal described in every bar corresponding to each described PDF sample file.
9. device according to claim 8, is characterized in that, also comprises:
Second parsing module, while going out described file header from each described PDF sample document analysis, parses content flow and cross-index table;
Locating module, in described content flow, located current parse by described cross-index table PDF sample file in the object of every page;
Second judge module, for judge described every page object in whether there are the object properties identical with described object properties set;
Described identical object properties if for there being identical object properties, are then stored in member record described in corresponding every bar by member record writing module.
10. device according to claim 7, is characterized in that, also comprises:
Display module, for described determine corresponding PDF sample file after, present the mark of the described each PDF sample file determined, store path and title.
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| CN101408876A (en) * | 2007-10-09 | 2009-04-15 | 中兴通讯股份有限公司 | Method and system for searching full text of electric document |
| CN101866348A (en) * | 2009-04-17 | 2010-10-20 | 精工爱普生株式会社 | Printing equipment, image processing apparatus, image processing method and computer program |
| CN102096845A (en) * | 2009-12-10 | 2011-06-15 | 黑龙江省森林工程与环境研究所 | Knowledge base full text search engine system for classified forest management |
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| CN101408876A (en) * | 2007-10-09 | 2009-04-15 | 中兴通讯股份有限公司 | Method and system for searching full text of electric document |
| CN101866348A (en) * | 2009-04-17 | 2010-10-20 | 精工爱普生株式会社 | Printing equipment, image processing apparatus, image processing method and computer program |
| CN102096845A (en) * | 2009-12-10 | 2011-06-15 | 黑龙江省森林工程与环境研究所 | Knowledge base full text search engine system for classified forest management |
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