专利汇可以提供Generating a graphical user interface from a command syntax for managing multiple computer systems as one computer system专利检索,专利查询,专利分析的服务。并且A graphical user interface can be automatically generated from a command syntax for managing multiple computer systems as one computer system. The command syntax is represented using an eXtensible Markup Language (XML) document file, an XML schema file, and a text description file. The XML document file, XML schema file, and text description file are maintained on a server and downloaded to a client as required. A user interface program uses the XML document, XML schema, and text descriptions to generate a "Wizard" that comprises the graphical user interface, wherein the Wizard provides a series of step-by-step dialogs for assisting the operator in creating a command from the command syntax.,下面是Generating a graphical user interface from a command syntax for managing multiple computer systems as one computer system专利的具体信息内容。
The present invention generally relates to the management of computer-implemented systems, and in particular, to a system and method for generating a graphical user interface from a command syntax for managing multiple computer systems as one computer system.
The management of computer systems has become increasingly more complex. This results from the complex hardware and software environments found in modern-day computer systems. For example, it is not uncommon to manage a large number of computer systems in a network, wherein the systems perform different tasks and run differing versions of software, wherein the systems are geographically dispersed, and wherein multiple operations consoles are required. As computer systems and networks grow in complexity, so too do the operations consoles and their user interfaces. Yet, it is not desirable to have a separate operations console for each computer system, nor is desirable to maintain a different client interface for each of the operations consoles.
Accordingly, the invention provides a method for generating a graphical user interface from a command syntax, for managing at least one computer system, comprising:
In a further aspect, a computer program produce is provided comprising computer program code stored on a computer readable storage medium, which when executed on a computer performs the method of the invention.
In a yet further aspect, the invention provides a system for generating a graphical user interface from a command syntax for managing at least one computer system, comprising:
Preferably a system is provided that can manage multiple computers and that has a client interface that is easy to maintain. The client interface reduces the complexity of managing computer systems, and does not require operators to remember a large repertoire of commands and command syntax.
According to a preferred embodiment the command syntax is represented using an eXtensible Markup Language (XML) document file, an XML schema file, and a text description file. The XML document file, XML schema file, and text description file are maintained on a server and downloaded to a client as required. A user interface program uses the XML document, XML schema, and text descriptions to generate a "Wizard" that comprises the graphical user interface, wherein the Wizard provides a series of step-by-step dialogs for assisting the operator in creating a command from the command syntax.
Preferably when the command syntax changes (for example, when a new function is added), updates are only needed at the server, thereby reducing the maintenance cost of clients. In addition, according to the preferred embodiment all clients are synchronized with the server and have the most up to date version of the command syntax. Moreover, generating the graphical user interface from the command syntax greatly reduces the amount of programming effort involved in creating the user interface. Finally, the command syntax is easier to learn, because the Wizard displays a step-by-step series of dialogs for guiding the operator in the use of the command syntax.
In the preferred embodiment, the server maintains control of the command syntax in order to support multiple versions thereof. Moreover, the client is preferably not sensitive to individual versions of the command syntax or it would require an update every time a command was changed. Finally, the tagging rules for the XML allows the user interface program to generate customized Wizards for the command syntax.
A preferred embodiment of the present invention will now be described in detail, by way of example only, and with reference to the following drawings:
FIG. 1 schematically illustrates the hardware and software environment of the preferred embodiment of the present invention including a distributed computer system 100 using a network 102 to connect one or more clients 104 to a server 106 having one or more data storage devices 108. The network 102 may comprise networks such as LANs, WANs, SNA networks, and the Internet. A typical combination of resources includes clients 104 that are implemented on personal computers or workstations, and servers 106 that are implemented on personal computers, workstations, minicomputers, or mainframes.
The server 106 is a sysplex that executes one or more copies of a Command Processor (CP) 108, which may comprise any number of systems, and any number of different types of systems. The multiple CP's 108 may act individually or as a single system in providing services and applications, but each CP 108 is managed separately, i.e., a separate command is sent to each CP 108 and each response from a CP 108 is viewed separately. As the number of CP's 108 increases, the manageability of the server 106 becomes more complex.
The server 106 also executes one or more Command Servers (CS) 110 that communicate with all of the CP's 108 and the clients 104 for providing operator control of the CP's 108. The CS 110 maintains a collection of related XML files 112 that represent the command syntax for the CP's 108. The XML files 112 store the command syntax as a separately replaceable unit.
The client 104 executes a user interface program 114 that interacts with the CS 110 to provide an operator with control over the CP's 108. The user interface program 114 receives a copy of the XML files 112 from the CS 110, wherein the XML files 112 represent a command syntax of the highest active release level of the command set for the CP's 108. The user interface program 114 processes the XML files 112 to identify resource types, verbs, and keywords. The user interface program 114 then dynamically displays a "Wizard" comprising a step-by-step series of dialogs that guide the operator through the command syntax, and constructs one or more commands based on the operator selections from the dialogs.
The CS 110 receives the commands from the user interface program 114, and submits the commands to one or more (possibly all) of the CP's 108. The CS 110 then receives responses from the CP's 108 and transmits the responses to the user interface program 114. For example, in response to operator commands, the CS 110 may provide the operator with a list of active CP's 108 executing in the system 100 and/or status notifications from the CP's 108.
Preferably, these components 108, 110, 112, and 114 all comprise logic and/or data that is embodied in or retrievable from a computer-readable device, medium, or carrier, e.g., a data storage device, a data communications device, a remote computer or device coupled to the computer via a data communications device, etc. Moreover, this logic and/or data, when read, executed, and/or interpreted by the computer, causes the computer to perform the steps necessary to implement and/or use a preferred embodiment of the present invention.
Thus, the present invention may, for example, be implemented as a method, apparatus, or computer program product using standard programming and/or engineering techniques to produce software, firmware, hardware, or any combination thereof. The term "article of manufacture" (or alternatively, "computer program product ") as used herein is intended to encompass logic and/or data accessible from any computer-readable device, carrier, or media.
Those skilled in the art will recognize that any combination of the above components, or any number of different components, including different logic, data, different peripherals, and different devices, may be used to implement the present invention, so long as similar functions are performed thereby. Specifically, those skilled in the art will recognize that the present invention may be applied to any database, associated database management system, or peripheral device.
In the preferred embodiment, the general format of the command syntax for the CP 108 comprises the following:
In the preferred embodiment, the XML files 112 provide a tag language representation of the command syntax, and include an XML document file, an XML schema file, and a text representation file. Examples of these files can be found in the Appendices attached hereto, wherein Appendix I is an exemplary XML document file (CommandSyntax.XML), Appendix II is an exemplary XML schema file (CommandSyntax.DTD), and Appendix III is an exemplary text description file (CommandText.TAG).
XML describes a class of data objects and partially describes the behavior of computer programs that process these objects. XML is a restricted form of SGML (Standard Generalized Markup Language), as defined in ISO 8879. The specification for XML can be found at the URL: http://www.w3.org/TR/REC-xml.
An XML schema specifies constraints on the structures and types of elements in an XML document. The basic schema for XML is the DTD (Document Type Definition), although other XML schema definitions are also being developed, such as DCD (Document Content Definition), XSchema, etc. Information concerning DTD and DCD can be found at the URL: http://www.w3.org/.
Preferably, a text description file provides the text descriptions that are used by the user interface program to construct the dialogs of the Wizard. The text descriptions are represented by tags that comprise concatenations of the nested XML tag names in the XML document.
The user interface program 114 of the preferred embodiment incorporates an XML processor that is used to read the XML files 112 and provide access to their content and structure. The XML specification located at the URL noted above describes how an XML processor typically behaves in terms of how it processes XML data.
As shown in Appendix I, the XML document file includes an 〈?xml〉 version identifier, an 〈!DOCTYPE root SYSTEM "CommandSyntax.dtd"〉 identifier of the XML schema file (e.g., .dtd file), and opening and closing 〈root〉 and 〈/root〉 tags. The remaining tags in the XML document file are described below in conjunction with the XML schema file.
The command syntax of the XML document file comprises the command syntax for a database management system (DBMS), and more specifically, the IMS™ DBMS sold by IBM Corporation, the assignee of the present invention.
Each tag in the XML document file has a set of rules that must be followed, which are defined in the XML schema file. As shown in Appendix II, most of the tags have descriptive names that indicate their function. Following is a description of the tags arid their attributes in the preferred embodiment:
As shown in Appendix III, the tags in the text description file are concatenated versions of tags used in the XML document file. By traversing the XML document file and concatenating the tag names therein, the user interface program 114 can identify the tags used in the text description file and thereby access the text to be displayed by the Wizard. Generally, this text is in HTML (HyperText Markup Language) format, although other formats may be used as well.
The text description file is used for the following reasons:
Flowcharts which illustrate the logic according to the preferred embodiment of the present invention are shown in FIGS. 2-3. Those skilled in the art will recognize that this logic is provided for illustrative purposes only and that different logic may be used to accomplish the same results.
FIG. 2 is a flowchart that illustrates the logic of encoding the XML files 112 according to the preferred embodiment of the present invention.
Block 200 represents the XML schema file being defined and then stored on the server 106. Preferably, this structure should not change as the command syntax changes.
Block 202 represents the XML document file being defined and then stored on the server 106. The XML document file is defined. Preferably, this structure will change as the command syntax changes. The Block includes the following steps:
Block 204 represents the text description file being defined and then stored on the server 106. Preferably, this structure will change as the command syntax changes.
FIG. 3 is a flowchart that illustrates the logic of processing the XML files 112 according to the preferred embodiment of the present invention.
Block 300 represents the user interface program 114 receiving the XML files 112 from the server 106.
Block 302 represents the user interface program 114, using the XML schema file as a template, traversing through the tags in the XML document file to gather information from each tag.
Block 304 represents the user interface program 114 constructing a "Wizard" for the XML document file using the text description file, wherein the Wizard displays a series of steps to the operator. Each of the steps displayed by the Wizard corresponds to a 〈keyword〉 element in the XML document file. The text description file is used to define the display elements for the Wizard. In the example XML document file provided above, the Wizard would have seven steps as described further below.
Block 306 represents the user interface program 114 displaying the command as it has been built via the operator selections of the Wizard, wherein a button or other mechanism is provided for the operator to submit the command to one or more of the CP's 108.
Block 308 represents the user interface program 114 displaying any responses received from the CP's 108 for the operator.
FIGS. 4A, 4B, 4C, 4D, 4E, 4F, and 4G illustrate the graphical user interface generated from the XML files 112 according to the preferred embodiment of the present invention. These particular "snapshots" of the graphical user interface correspond to the Wizard generated for the example XML files 112 described in the Appendices. Of course, those skilled in the art will recognize that this graphical user interface is provided for illustrative purposes only and that a different graphical user interface may be used to accomplish the same results.
Specifically, the Wizard shown in FIGS. 4A, 4B, 4C, 4D, 4E, 4F, and 4G corresponds to the following portion of Appendix I:
In this example, the CP's 108 each comprise a database management system (DBMS), and more specifically, the IMS™ DBMS sold by IBM Corporation, the assignee of the present invention. Thus, as noted above, the command syntax of the XML document file comprises the command syntax for an IMS™ DBMS.
FIG. 4A illustrates step 1 of 7 of the Wizard, which prompts the operator to name the transactions to display. This page of the Wizard lists the names of the transactions that will be displayed. The operator types a transaction name in the entry field and presses Enter to add it to the list. The operator can also select previous transactions from the drop-down list and use the wildcard (*) character to display all or filter transactions.
FIG. 4B illustrates step 2 of 7 of the Wizard, which prompts the operator to specify the class number of transactions to display. This page of the Wizard lists the class numbers of the transactions that will be displayed. The operator types a class number in the entry field and presses Enter to add it to the list. The operator can also select previous class numbers from the drop-down list.
FIG. 4C illustrates step 3 of 7 of the Wizard, which prompts the operator to select a status of the transactions to display. This page of the Wizard lists transaction status types that the operator can select. The select will apply to the transactions that the operator specified in the previous Name and Class steps (i.e., steps 1 and 2).
FIG. 4D illustrates step 4 of 7 of the Wizard, which prompts the operator to specify the queue count of transactions to display. This page of the Wizard is used to filter transactions by queue count. The operator chooses the comparison operator from the list and then types a number in the entry field.
FIG. 4E illustrates step 5 of 7 of the Wizard, which prompts the operator to select the transaction output field to display. This page of the Wizard is used to specify the transaction output fields to be displayed and overrides the default transaction output fields.
FIG. 4F illustrates step 6 of 7 of the Wizard, which prompts the operator to specify the CP 108 that will receive this command. This page of the Wizard is used to complete the operation and submit the command.
FIG. 4G illustrates step 7 of 7 of the Wizard, which prompts the operator to review the command generated for the specified CP 108. This page of the Wizard is used to specify when the generated command will be submitted to the specified CP 108.
Those skilled in the art will recognize that different database management systems, operating environments, etc., could be substituted for those described herein. Those skilled in the art will recognize that the present invention could be used in any type of computer system, and need not be limited to a client-server architecture. Those skilled in the art will recognize that the present invention could be used with many types of computer systems, and need not be limited to the examples described herein.
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