Patent Application
20050187978
This application is related to the following co-pending applications which are each hereby incorporated by reference in their entirety: SYSTEM AND METHOD FOR PORTAL PAGE LAYOUT, U.S. patent application Ser. No. 10/279,663, by: John Haut, et al., filed on Oct. 24, 2002 (Atty. Docket No. BEAS-1156US0);
The present invention disclosure relates to portal rendering.
A portal is a point of access to data and applications that provides a unified and personalized view of information and resources. Typically, a portal is implemented as one or more pages on a website. Portal pages can integrate many elements, such as live data feeds, static information and multimedia presentations. However, if the software required for rendering each element on a portal page is complex, maintenance problems can arise. For example, a web page that contains text and graphics is coded in at least two programming languages, often intermingled within the same file used to describe the web page. Implementing even minor changes requires a great deal of skill and knowledge. What is needed is a more modular approach to portal rendering that permits users of average skill to create and modify portal pages with minimal effort.
The invention is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.
Portal 16 contains several elements. Portal page selection tabs 20-28 can each be selected by a user to render a different page within the portal. Portal pages can be thought of as panels or panes that are swapped into and out of a display region of the available portal real estate. If tab 20 were selected, for example, the portal page corresponding to that tab would be rendered. By way of a non limiting example, selection of a portal element can be accomplished with an input device such as a mouse, a motion detector, a voice command, a hand or eye gesture, etc. Although tabs 20-28 in
Portal 16 is also contains portal page 10, which includes portlets and other elements. A portlet is an application that can manage its own graphical user interface (GUI). Portlets can communicate with each other and with other software and hardware components (e.g., Enterprise Java Beans™, Java™ Beans, serylets, applets, etc.). The Java™ programming language, its libraries, environment and toolkits are available from Sun Microsystems, Inc. of Santa Clara, Calif. The other software and hardware components may be part of the same execution environment as the portlet or may be in a different execution environment. In one embodiment, a portlet is implemented as a JavaServer Page™ (JSP). JSP's are part of the Java™ standard available from Sun Microsystems, Inc. For example, portlet 30 displays real-time stock ticker information. A user might be able to configure such a portlet to display certain stocks of interest. In another embodiment, the user can select a given stock displayed in portlet 30 and receive more detailed information, such as the price history, price to earnings ratio, etc. The portlet would be responsible for handling user input and responding accordingly. Portlet GUI 32, for example, displays up-to-date information pertaining to a user's checking accounts. Likewise, portlet 32 could provide detailed information on transactions if the user were to select an account. Advertisement portlet 18 displays an advertisement that could be directed specifically to the current user based on demographics or other information. For instance, if a user had an outstanding home loan in good standing, the advertisement could be for a home equity loan. Likewise, if the user had an appropriate amount in a savings account, the advertisement could be for a new car loan. Static area 14 contains non-interactive content, such as text, an image or any combination thereof.
In one embodiment, a portal page such as 10 can be described with a layout (hereinafter referred to as a “template”). A template can specify the location of elements on a portal page. A template can include one or more placeholders which define regions of the template wherein a portlet can render itself, or wherein other static or dynamic content can be rendered. A given placeholder can host more than one portlet. In such a case, the template area occupied by the placeholder could be shared amongst the portlets in a number of ways, including but not limited to stacking portlets on top of one another (not shown). In another embodiment, a template can be implemented as a Hypertext Markup Language (HTML) table and created with conventional HTML editors. Each cell in a such a table can represent a placeholder. Placeholders can be dynamically bound to portlet GUI's during portal page rendering. In one embodiment, this can be accomplished by inserting directives to initiate portlet execution, such as JSP tag library calls, in the HTML table cells representing placeholders.
In one embodiment, by way of illustration, client 200 can render a portal by delegating the work to a hierarchy of JSP's wherein one JSP renders parts of its GUI by invoking other JSP's. Client 200 can be a web browser, for example. However, client 200 may be any software, firmware or hardware capable of communicating with server 202. Server 202 can be any web server having a Java™ run-time environment and support for JSP, such as the BEA WebLogic Server™, available from BEA Systems, Inc. of San Jose, Calif.
JSP's separate GUI functionality executing on a client from application logic executing on a server, thereby enabling users to easily change a GUI without having to alter underlying application logic. Generally speaking, a JSP includes a page file that contains traditional HTML and Java™, but has a “jsp” file name extension rather than “.hml”. The “jsp” extension indicates to server 202 that the file contains embedded directives to invoke special JSP processing within server 202. For example, consider the following JSP page:
Embedded in the HTML code above are statements expressly for processing by a JSP engine (not shown) in server 202. For example, the scriplet code fragment “new Date ( )” is delimited by the special symbols <%=and %>. When the JSP page is invoked by client 200, it will be processed and executed on server 202 by the JSP engine, whereas the HTML code will be processed and executed on client 200. The above scriplet creates a new instance of the Date class on server 202 and returns the current date as a string to client 200, which is then displayed by client 200:
In one embodiment, when client 200 invokes a JSP page, web server 202 compiles the page into a serylet and spawns it as a running process. A serylet is a process deployed in a web server. Any dynamic output of the serylet is sent back to client 200 as a response. Processing of JSP code within the web server may also result in the inclusion (and invocation) of other JSP files via the <j sp: include> or similar directive.
In one embodiment, a skin can be a collection of files that includes a cascading style sheet and a directory of images that define the look and feel of a portal. Every button, banner, portlet header, background color, and font characteristic can be determined by the skin. In one embodiment, a portal can be associated with more than one user or portal group. A user group can be any arbitrary collection of users that is determined statically, or dynamically by evaluating rules that take into account information about a user and other information. A portal has a default skin that can be customized for a group. In this way, a group can define its own look and feel for a particular portal page. The group skin can be further customized to suit the needs of individual users. Skin information can be cached in server 202 so that it may be used by other JSP's invoked by Portaljsp during rendering of the portal page.
Another piece of information retrieved by Portaljsp 302 via esp.tld 204 is a template corresponding to each portal page. As with skins, a template can be customized. In one embodiment, customization of a template involves the layout or placement of portal elements (e.g., portlets, static data, dynamic data, header, footer, content, etc.) on the template. A template can be afforded an arbitrary number of levels of customization. In another embodiment, a template can have three levels of customization: global, group and user. An initial template is created for a portal page at the global level. This is the default template used for describing the portal page if there are no further customizations. Customizations at the group level supersede the global level template. Likewise, customizations at the user level take precedence over the group and global levels.
As part of retrieving the template, portal manager 206 binds portlets to template placeholders. In doing so, portal manager 206 utilizes access controller 212 to determine capabilities or permissions (e.g., whether the given portal user is entitled to execute, view or edit the portlet in question) based on one or more entitlements. An entitlement is a rule that grants or denies access to a resource capability. In one embodiment, a resource can be any resource available on a computer network, including but not limited to a portlet, a portlet GUI component, a portal page, portlet content, etc. In one embodiment, evaluation of an entitlement consists of dynamically associating roles with a user based on role rules that take into account information about the user, information about the user's communication session, or the current state of the system. For example:
(1) When all of these conditions apply, the user is a GoldMember:
In rule (1) above, a user is deemed a GoldMember if there is more than $5,000 in their checking account and they have more than $50,000 in their combined accounts. Certain portlets, for example, may only be for GoldMember users. Thus, if only GoldMember users were entitled to execute the portlet in question, it would not be bound to a template for non-GoldMember users. Similarly, if the entitlement was for viewing, rather than execution, the portlet would be bound to the template but only GoldMember users could view it. If the entitlement was for editing, then the portlet would be bound to the template and would be visible to a user, however only GoldMember users would be allowed to edit the portlet's contents. Access controller 212 directs role mapper 214 to determine which roles correspond to client 200. Access controller 212 then directs decision module 216 to determine whether or not access to a resource should be allowed based on entitlements corresponding to the roles.
The final piece of information Portal jsp 302 needs in order to render the portal is the currently selected portal page tab 20-28. This determines which portal page template to use initially, since each portal page is described by a template and each tab corresponds to a unique portal page. After obtaining this preliminary information, as shown in
One embodiment may be implemented using a conventional general purpose or a specialized digital computer or microprocessor(s) programmed according to the teachings of the present disclosure, as will be apparent to those skilled in the computer art. Appropriate software coding can readily be prepared by skilled programmers based on the teachings of the present disclosure, as will be apparent to those skilled in the software art. The invention may also be implemented by the preparation of integrated circuits or by interconnecting an appropriate network of conventional component circuits, as will be readily apparent to those skilled in the art.
One embodiment includes a computer program product which is a storage medium (media) having instructions stored thereon/in which can be used to program a computer to perform any of the features presented herein. The storage medium can include, but is not limited to, any type of disk including floppy disks, optical discs, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
Stored on any one of the computer readable medium (media), the present invention includes software for controlling both the hardware of the general purpose/specialized computer or microprocessor, and for enabling the computer or microprocessor to interact with a human user or other mechanism utilizing the results of the present invention. Such software may include, but is not limited to, device drivers, operating systems, execution environments/containers, and user applications.
The foregoing description of the preferred embodiments of the present invention has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations will be apparent to the practitioner skilled in the art. Embodiments were chosen and described in order to best describe the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention, the various embodiments and with various modifications that are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the following claims and their equivalents.
The present application claims priority to the following applications which are incorporated herein: U.S. patent application Ser. No. 10/279,696 entitled SYSTEM AND METHOD FOR PORTAL RENDERING, by Shelly Qian, et al. filed on Oct. 24, 2002 (Atty. Docket No. BEAS-1160US0); and, U.S. Provisional Application No. 60/386,487, entitled ENHANCED PORTALS, by Phil Griffin, et al., filed on Oct. 24, 2001 (Atty. Docket No. BEAS-1112US0).
| Number | Date | Country | |
|---|---|---|---|
| 60386487 | Oct 2001 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 10279696 | Oct 2002 | US |
| Child | 11115596 | Apr 2005 | US |
