Single view of data in a networked computer system with distributed storage

• US 7,765,229 B2
• Filed: 07/12/2005
• Issued: 07/27/2010
• Est. Priority Date: 07/12/2005
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Yadav, Anil Kumar, Samji, Mohammed, Brezak, John
• Primary Examiner(s): Vital; Pierre M
• Assistant Examiner(s): Lee; Rachel J
• Application Number:
  US11/179,433
• Publication Number:
  US 20070016586A1
• Time in Patent Office: 1,841 Days
• Field of Search: 707/10
• US Class Current: 707/770
• CPC Class Codes: G06F 16/168 Details of user interfaces specifically adapted to file systems, e.g. browsing and visualisation, 2d or 3d GUIs query results presentation G06F16/156
• CPC Class Codes: G06F 16/192 Implementing virtual folder structures

Abstract

A host computer system obtains a request for an aggregated view of content in a computer network corresponding to a criterion. The host computer system queries networked computer systems to identify data objects according to the criterion. Each responding computer system provides an identification set of specified data objects that are stored at the responding computer to the host computer systems. The host computer system merges the identification sets to form the aggregated view of content to a user. If a specified data object is replicated to networked computers, the host computer system provides one instance of the specified data object in the query result. Consequently, concurrent utilization of file synchronization and the aggregated view of data objects are facilitated. If a specified data object is stored at the host computer system, the host computer system blocks querying of networked computers about the specified data object.

Claims

1. A computer-readable medium having computer-executable instructions stored thereon in a local computer system connected to a computer network, said instructions configured to perform a method comprising the steps of:

(a) obtaining a request to identify specified data objects in accordance with a criterion;

(b) querying the local computer system for a first specified data object, a second specified data object, and a third specified data object;

(c) receiving an indication that the first specified data object is stored on the local computer system, and that the second specified data object and the third specified data object are not stored on the local computer system, wherein the first specified data object is included in a local identification set;

(d) in response to receiving the indication that the second specified data object and the third specified data object are not stored on the local computer system, querying a first computer system in the computer network for the second specified data object and the third specified data object such that the first computer system is not queried for the specified data objects that correspond to the specified data objects in the local identification set that are stored on the local computer system;

(e) obtaining a first identification set of the specified data objects that are stored at the first computer system, wherein the first identification set includes the second specified data object;

(f) querying a second computer system for the third specified data object;

(g) determining that the second computer system is not currently available;

(h) recalling a previously stored content request result for the second computer system that includes the third specified data object;

(i) receiving a second identification set of the specified data objects that are stored at the second computer system, wherein the second identification set includes the third specified data object;

(j) maintaining only one identification for a replicated data object that is contained in more than one of the first identification set and the second identification set;

(k) merging the local identification set, the first identification set, and the second identification set to form a merged identification set; and

(l) displaying the merged identification set, wherein the specified data objects in the second identification set are visually distinguished from the specified data objects in the local and the first identification sets by one or more of a dotted border, being semi-transparent, or being highlighted to indicate that one or more of the specified data objects in the merged identification set are stored on the second computer system and cannot currently be accessed.

2. The computer-readable medium of claim 1, having computer-executable instructions further configured to perform the step of:

(m) generating a result from the merged identification set.

3. The computer-readable medium of claim 1, having computer-executable instructions further configured to perform the steps of:

(m) querying a third computer system in the computer network for the specified data objects that are not stored on the local computer;

(n) obtaining a third identification set of the specified data objects that are stored at the third computer system;

(o) if the first identification set, the second identification set, and the third identification set contain a corresponding identification of a replicated data object, maintaining only one identification for the replicated data object; and

(p) merging the local identification set, the first identification set, the second identification set, and the third identification set to form the merged identification set.

4. The computer-readable medium of claim 2, wherein (m) includes computer-executable instructions further configured to perform the step of:

displaying the result to a user.

5. The computer-readable medium of claim 1, wherein (a) includes computer-executable instructions further configured to perform the step of:

determining that the specified data objects are associated with a unique identifier corresponding to a user.

6. The computer-readable medium of claim 5, wherein the user is an owner of the specified data objects.

7. The computer-readable medium of claim 2, wherein the result is represented without identifying associated locations of the specified data objects.

8. The computer-readable medium of claim 2, having computer-executable instructions further configured to perform the step of:

(n) grouping the result according to a sorting criterion.

9. The computer-readable medium of claim 8, wherein the sorting criterion corresponds to a location of the specified data objects.

10. The computer-readable medium of claim 1, having computer-executable instructions further configured to perform the step of:

(m) initiating the request in response to occurrence of a specified event.

11. The computer-readable medium of claim 1, having computer-executable instructions further configured to perform the step of:

(m) limiting a number of remote computer systems that are queried to identify the specified data objects.

12. The computer-readable medium of claim 1, having computer-executable instructions further configured to perform the step of:

(m) synchronizing a data object based on the merged identification set.

13. The computer-readable medium of claim 2, having computer-executable instructions further configured to perform the step of:

(n) highlighting an entry in the result to indicate that an associated data object has been modified since generating a previous result to identify the specified data objects.

14. A computer system having a processor and one or more computer readable media for querying networked computers about data objects distributed in a computer network, the computer system comprising:

a processor;

a network interface coupled to the processor that enables the computer system to communicate with a local computer system, a first computer system, and a second computer system in the computer network;

a user interface module;

a replication data structure that contains an indication of replicated data objects; and

a content query service module that,

receives a request to identify specified data objects in accordance with a criterion from a user through the user interface module,

queries the local computer system for a plurality of specified data objects,

receives an indication that a first specified data object is stored on the local computer system such that the first specified data object is included in a local identification set,

queries the first computer system for a second specified data object in response to receiving the indication that the second specified data object is not stored on the local computer system such that the first computer system is not queried for the specified data objects that correspond to the specified data objects in the local identification set stored on the local computer system,

obtains a first identification set that includes the second specified data object stored at the first computer system,

queries the second computer system for a third specified data object,

determines that the second computer system is not currently available,

recalls a previously stored content request for the second computer system, wherein the previously stored content request result is a second identification set that includes the third specified data object,

maintains only one identification for a replicated data object that is contained in more than one of the first identification set and the second identification set, and

merges the local identification set, the first identification set, and the second identification set to form a merged identification set;

a display module that displays the merged identification set, wherein the specified data objects in the second identification set are visually distinguished from the specified data objects in the first identification set by one or more of a dotted border, being semi-transparent, or being highlighted to indicate that one or more of the specified data objects in the merged identification set are stored on the second computer system and cannot currently be accessed.

15. The computer system of claim 14, further comprising:

a peer status data structure that provides status information as to whether a remote computer is off-line; and

wherein the content query service module blocks a query to the remote computer if the remote computer is off-line.

16. The computer system of claim 15, further comprising:

a local memory that stores previously accessed data objects from the remote computer; and

wherein the content query service module obtains an associated identification set of the specified data objects from the local memory with the first identification set and the second identification set.

17. The computer system of claim 16, wherein the local memory comprises a cache memory.

18. A computer-readable medium having computer-executable instructions stored thereon in a local computer system connected to a computer network, said instructions configured to perform a method comprising the steps of:

(a) obtaining a request to identify specified data objects in accordance with a criterion;

(b) after querying the local computer system for a first specified data object and a second specified data object, receiving an indication that the first specified data object is stored on the local computer system and that the second specified data object is not stored on the local computer system such that a local identification set includes the first specified data object;

(c) querying a first computer system and a second computer system for the second specified data object and a third specified data object such that the first computer system and the second computer system are not queried for the specified data objects that correspond to the specified data objects in the local identification set;

(d) receiving a first identification set corresponding to the first computer system and a second identification set corresponding to the second computer system such that one or more of the first computer system or the second computer system has stored the second specified data object;

(e) querying a previously networked computing system for the third specified data object;

(f) determining that the previously networked computing system is not currently available;

(g) recalling a previously stored content request result for the previously networked computing system, wherein the previously stored content request result is a third identification set of the specified data objects that includes the third specified data object;

(h) if more than one of the first identification set, the second identification set, and the third identification set contain corresponding identification of a replicated data object, maintaining only one identification for the replicated data object;

(i) merging the local identification set, the first identification set, the second identification set, and the third identification set to form a merged identification set of the specified data objects; and

(j) displaying the merged identification set, wherein the specified data objects in the third identification set are visually distinguished from the specified data objects in the first and second identification sets by one or more of a dotted border, being semi-transparent, or being highlighted to indicate that one or more of the specified data objects in the merged identification set are stored on the previously networked computing system and cannot currently be accessed.