CA2470720A1 - Mechanism for applying transforms to multi-part files - Google Patents
Mechanism for applying transforms to multi-part files Download PDFInfo
- Publication number
- CA2470720A1 CA2470720A1 CA002470720A CA2470720A CA2470720A1 CA 2470720 A1 CA2470720 A1 CA 2470720A1 CA 002470720 A CA002470720 A CA 002470720A CA 2470720 A CA2470720 A CA 2470720A CA 2470720 A1 CA2470720 A1 CA 2470720A1
- Authority
- CA
- Canada
- Prior art keywords
- data
- transform
- list
- stream
- transforms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/543—User-generated data transfer, e.g. clipboards, dynamic data exchange [DDE], object linking and embedding [OLE]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/258—Data format conversion from or to a database
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/545—Interprogram communication where tasks reside in different layers, e.g. user- and kernel-space
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
- G06F2209/54—Indexing scheme relating to G06F9/54
- G06F2209/542—Intercept
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Databases & Information Systems (AREA)
- Health & Medical Sciences (AREA)
- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Data Mining & Analysis (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Described is a system and method for applying transforms to multi- part files. A request is received to access a stream within a multi-part fil e. Upon receipt of the request, a list of transforms associated with the stream is identified. The list is also included within the multi-part file. The transforms specifi ed in the list of transforms are performed on data before completing the request. If t he request is a write, the transforms encode the data. If the request is a read , the transforms decode the data. The list of transforms is order dependent. The list of transforms includes a data structure having a first stream that includes a m ap that correlates the stream with a name for the list of transforms. A second strea m that lists each of the transforms for the stream. A third stream for each of the transforms listed that identifies information associated with the transform.
Claims (27)
1. A computer-implemented method, comprising:
receiving a request to access a stream within a mufti-part file;
identifying a list of at least one transform associated with the stream, the list being identified from within the multi-part file; and performing the transforms specified in the list of transforms on data before completing the request.
receiving a request to access a stream within a mufti-part file;
identifying a list of at least one transform associated with the stream, the list being identified from within the multi-part file; and performing the transforms specified in the list of transforms on data before completing the request.
2. The computer-implemented method of claim 1, wherein the multi-part file includes an OLE compound file.
3. The computer-implemented method of claim 1, wherein identifying the list of transforms comprises searching a data space map for the stream, the data space map providing a correlation between the stream and a data space name associated with a data space, the data space defining the list.
4. The computer-implemented method of claim 1, wherein the list of at least one transforms includes a type and a name for each transform listed.
5. The computer-implemented method of claim 1, wherein the list further includes transform instance data for one of the transforms identified in the list, the transform instance data specifies pertinent information for decoding data transformed by the one transform.
6. The computer-implemented method of claim 1, wherein the request is a write request of a data chunk and the at least one transform is performed on the data chunk to create encoded data that is written to a storage medium.
7. The computer-implemented method of claim 6, wherein the data chunk is not contiguous with other data chunks previously written to the storage medium for the stream.
8. The computer-implemented method of claim 6, wherein the data chunk is a fixed size chunk with other data chunks for the stream.
9. The computer-implemented method of claim 1, wherein the list includes a compression transform and an encryption transform.
10. The computer-implemented method of claim 1, wherein the request is a read request of a data chunk and the at least one transform performs an inverse transform on the data chunk retrieved from the stream to provide decoded data to the requestor.
11. A computer system having a mechanism for applying transforms to multi-part files, the computer system comprising:
a processor; and a memory, the memory being allocated for a plurality of computer-executable instructions which are loaded into the memory for execution by the processor, the computer-executable instructions performing a method comprising:
receiving a request to access a stream within a multi-part file;
identifying a list of at least one transform associated with the stream, the list being identified from within the multi-part file; and performing the transforms specified in the list of transforms on data before completing the request.
a processor; and a memory, the memory being allocated for a plurality of computer-executable instructions which are loaded into the memory for execution by the processor, the computer-executable instructions performing a method comprising:
receiving a request to access a stream within a multi-part file;
identifying a list of at least one transform associated with the stream, the list being identified from within the multi-part file; and performing the transforms specified in the list of transforms on data before completing the request.
12. The computer system of claim 11, wherein the multi-part file includes an OLE compound file.
13. The computer system of claim 11, wherein identifying the list of transforms comprises searching a data space map for the stream, the data space map providing a correlation between the stream and a data space name associated with a data space, the data space defining the list.
14. The computer system of claim 11, wherein the list of at least one transforms includes a type and a name for each transform listed.
15. The computer system of claim 11, wherein the list further includes transform instance data for one of the transforms identified in the list, the transform instance data specifies pertinent information for decoding data transformed by the one transform.
16. The computer system of claim 11, wherein the request is a write request of a data chunk and the at least one transform is performed on the data chunk to create encoded data that is written to a storage medium.
17. The computer system of claim 16, wherein the data chunk is not contiguous with other data chunks previously written to the storage medium for the stream.
18. The computer system of claim 16, wherein the data chunk is a fixed size chunk with other data chunks for the stream.
19. The computer system of claim 11, wherein the list includes a compression transform and an encryption transform.
20. The computer system of claim 11, wherein the request is a read request of a data chunk and the at least one transform performs an inverse transform on the data chunk retrieved from the stream to provide decoded data to the requestor.
21. A computer-readable medium encoded with a data structure, comprising:
a first stream including a map that correlates a stream within a multi-part file with a name for a list of transforms;
a second stxeam that lists each of the transforms for the stream; and a third stream for each of the transforms, the third stream identifies information associated with the transform.
a first stream including a map that correlates a stream within a multi-part file with a name for a list of transforms;
a second stxeam that lists each of the transforms for the stream; and a third stream for each of the transforms, the third stream identifies information associated with the transform.
22. The computer-readable medium of claim 21, wherein the data structure is included within the multi-part file.
23. The computer-readable medium of claim 21, wherein the name for the list of transforms may be correlated with multiple streams within the multi-part file.
24. The computer-readable medium of claim 21, wherein the list of transforms is order dependent.
25. The computer-readable medium of claim 21, wherein the information identifies a class name and a class type for the transform.
26. The computer-readable medium of claim 25, wherein the information further identifies instance data associated with the transform.
27. The computer-readable medium of claim 26, wherein the transform includes a compression transform and the instance data includes a window size for the compression transform.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2003/015707 WO2004107198A1 (en) | 2003-05-17 | 2003-05-17 | Mechanism for applying transorms to multi-part files |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2470720A1 true CA2470720A1 (en) | 2004-11-17 |
| CA2470720C CA2470720C (en) | 2011-10-18 |
Family
ID=33449011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2470720A Expired - Fee Related CA2470720C (en) | 2003-05-17 | 2003-05-17 | Mechanism for applying transforms to multi-part files |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1625510A4 (en) |
| JP (1) | JP4378342B2 (en) |
| KR (1) | KR100965709B1 (en) |
| CN (1) | CN100430916C (en) |
| AU (1) | AU2003241506B8 (en) |
| BR (1) | BR0306999A (en) |
| CA (1) | CA2470720C (en) |
| MX (1) | MXPA04007407A (en) |
| WO (1) | WO2004107198A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337208A (en) * | 2017-01-19 | 2018-07-27 | 中国电信股份有限公司 | Data guard method, alternative based on cloud storage and cloud storage system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007139552A1 (en) * | 2006-05-31 | 2007-12-06 | Citrix Systems, Inc. | Systems and methods for determining the charset encoding for decoding a request submission in a gateway |
| US8255373B2 (en) | 2008-10-24 | 2012-08-28 | Microsoft Corporation | Atomic multiple modification of data in a distributed storage system |
| US9996572B2 (en) | 2008-10-24 | 2018-06-12 | Microsoft Technology Licensing, Llc | Partition management in a partitioned, scalable, and available structured storage |
| US8886796B2 (en) | 2008-10-24 | 2014-11-11 | Microsoft Corporation | Load balancing when replicating account data |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8901827A (en) * | 1989-07-14 | 1991-02-01 | Oce Nederland Bv | SYSTEM FOR PROCESSING FILE ORGANIZED DATA, MANAGEMENT MODULE USED THEREIN AND STORAGE MEDIA, PROVIDED WITH THE PROGRAMMING OF THIS MANAGEMENT MODULE. |
| JP3308770B2 (en) * | 1994-07-22 | 2002-07-29 | 三菱電機株式会社 | Information processing apparatus and calculation method in information processing apparatus |
| US5742818A (en) * | 1995-12-15 | 1998-04-21 | Microsoft Corporation | Method and system of converting data from a source file system to a target file system |
| US6339775B1 (en) * | 1997-11-07 | 2002-01-15 | Informatica Corporation | Apparatus and method for performing data transformations in data warehousing |
| US20020001412A1 (en) * | 1998-07-21 | 2002-01-03 | Hewlett-Packard Company | System for variable quantization in jpeg for compound documents |
| US6357042B2 (en) * | 1998-09-16 | 2002-03-12 | Anand Srinivasan | Method and apparatus for multiplexing separately-authored metadata for insertion into a video data stream |
| SE513356C2 (en) * | 1998-11-20 | 2000-08-28 | Ericsson Telefon Ab L M | Method and apparatus for encrypting images |
| US7644366B1 (en) * | 1999-07-30 | 2010-01-05 | Computer Associates Think, Inc. | Method and system for displaying a plurality of discrete files in a compound file |
| US6529948B1 (en) * | 1999-08-31 | 2003-03-04 | Accenture Llp | Multi-object fetch component |
| US20020003886A1 (en) * | 2000-04-28 | 2002-01-10 | Hillegass James C. | Method and system for storing multiple media tracks in a single, multiply encrypted computer file |
| EP1189432A3 (en) * | 2000-08-14 | 2004-10-20 | Matsushita Electric Industrial Co., Ltd. | A hierarchical encryption scheme for secure distribution of predetermined content |
-
2003
- 2003-05-17 BR BR0306999-0A patent/BR0306999A/en not_active IP Right Cessation
- 2003-05-17 AU AU2003241506A patent/AU2003241506B8/en not_active Ceased
- 2003-05-17 CA CA2470720A patent/CA2470720C/en not_active Expired - Fee Related
- 2003-05-17 JP JP2005500404A patent/JP4378342B2/en not_active Expired - Fee Related
- 2003-05-17 MX MXPA04007407A patent/MXPA04007407A/en active IP Right Grant
- 2003-05-17 EP EP03731243A patent/EP1625510A4/en not_active Ceased
- 2003-05-17 CN CNB038019698A patent/CN100430916C/en not_active Expired - Fee Related
- 2003-05-17 WO PCT/US2003/015707 patent/WO2004107198A1/en active Application Filing
- 2003-05-17 KR KR1020047010758A patent/KR100965709B1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337208A (en) * | 2017-01-19 | 2018-07-27 | 中国电信股份有限公司 | Data guard method, alternative based on cloud storage and cloud storage system |
| CN108337208B (en) * | 2017-01-19 | 2020-11-24 | 中国电信股份有限公司 | Data protection method and replacement device based on cloud storage and cloud storage system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003241506B2 (en) | 2009-11-26 |
| JP4378342B2 (en) | 2009-12-02 |
| AU2003241506B8 (en) | 2010-01-07 |
| EP1625510A4 (en) | 2008-03-12 |
| KR20060037217A (en) | 2006-05-03 |
| AU2003241506A1 (en) | 2005-01-21 |
| BR0306999A (en) | 2005-02-09 |
| CN1615477A (en) | 2005-05-11 |
| JP2006526191A (en) | 2006-11-16 |
| CA2470720C (en) | 2011-10-18 |
| MXPA04007407A (en) | 2005-02-17 |
| KR100965709B1 (en) | 2010-06-24 |
| EP1625510A1 (en) | 2006-02-15 |
| WO2004107198A1 (en) | 2004-12-09 |
| CN100430916C (en) | 2008-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20200831 |