GTLAB is a Java Server Faces tag library that wraps Grid and web services to build portal-based and standalone applications. It contains tags for common tasks like job submission, file transfer, credential management. GTLAB applications can be deployed as portlets or converted to Google Gadgets. The document provides instructions for installing GTLAB, examples of tags, and making new custom tags.

1. Installing and Building GTLAB Marlon Pierce Indiana Univeristy

3. Overview and Examples

4. User’s Browser Portlet, Gadget Containers iGoogle, Facebook GTLAB Gadgets TeraGrid Services (GRAM, GridFTP, INCA) Google GData Services, Twitter Feeds, etc RPS, RDS, GPIR Services GTLAB’s Relationship to Other Components

5. Various GTLAB applications deployed as portlets: Remote directory browsing, proxy management, and LoadLeveler queues.

6. GTLAB Applications as Google Gadgets: MOAB dashboard, remote directory browser, and proxy management.

7. MyProxy Example <h:form id=&quot;form&quot;> <h:outputText value=&quot;Username:&quot;/> <h:inputText value=&quot;#{resource.username}&quot; required=&quot;true&quot;/> <h:outputText value=&quot;Password: &quot;/> <h:inputSecret value=&quot;#{resource.password}&quot; required=&quot;true&quot;/> <h:outputText value=&quot;MyProxy Server: &quot;/> <h:inputText value=&quot;#{resource.myproxyHostname}&quot; required=&quot;true&quot;/> <o:submit id=&quot;submit&quot; value=&quot;Submit&quot; binding=&quot;#{builder.body}&quot; action=&quot;#{builder.junkAction}&quot; > <o:multitask id=&quot;multi&quot; persistent=&quot;true&quot; taskname=&quot;#{resource.taskname}&quot;> <o:myproxy id=&quot;mypr&quot; hostname=&quot;#{resource.myproxyHostname}&quot; lifetime=&quot;2&quot; password=&quot;#{resource.password}&quot; port=&quot;7512&quot; username=&quot;#{resource.username}&quot;/> </o:multitask> </o:submit> </h:form>

8. Executing Multiple Task <o:submit id=&quot;submit&quot; value=&quot;Submit&quot; binding=&quot;#{builder.body}&quot; action=&quot;#{builder.junkAction}&quot; > <o:multitask id=&quot;multi&quot; persistent=&quot;true&quot; taskname=&quot;#{resource.taskname}&quot;> < o:jobsubmit id=&quot;js&quot; myfaces=&quot;true&quot; arguments=&quot;#{resource.arguments}&quot; executable=&quot;#{resource.executable}&quot; hostname=&quot;#{resource.hostname}&quot; provider=&quot;#{resource.provider}&quot; stdout=&quot;#{resource.stdout}&quot;/> < o:filetransfer id=&quot;ft&quot; myfaces=&quot;true&quot; from=&quot;#{resource.from}&quot; to=&quot;#{resource.to}&quot; /> <o:dependency id=&quot;dep&quot; task=&quot;ft&quot; dependsOn=&quot;js&quot;/> </o:multitask> </o:submit>

9. Resource Prediction Service Client with GTLAB <o:submit id=&quot;submit&quot; value=&quot;Submit&quot; binding=&quot;#{builder.body}&quot; action=&quot;#{builder.junkAction}&quot;> <o:multitask id=&quot;multi&quot; persistent=&quot;true&quot; taskname=&quot;#{resources.taskname”> <o:rpsOptimal resource=&quot;task1-resources&quot; id=&quot;rpsoptimal-exec&quot; myfaces=&quot;true&quot;/> </o:multitask> </o:submit>

10. Example with Dependency <o:submit id=&quot;submit” …> <o:multitask id=&quot;multi” …> <o:rpsAddModel resource=&quot;task1-resources&quot; id=&quot;rpsAddModel-exec&quot; myfaces=&quot;true&quot;/> <o:rpsManager resource=&quot;task1-resources&quot; id=&quot;rpsManager-exec&quot; myfaces=&quot;true&quot;/> <o:dependency id=&quot;deps-rpsstuff” task=&quot;rpsManager-exec&quot; dependsOn=&quot;rpsAddModel-exec&quot;/> </o:multitask> </o:submit>

11. More Detail: Available Tags and Features

16. Tag Description MyProxy Gets a proxy credential (COG) JobSubmit Runs remote commands (COG) FileOperation Create, delete, list remote files and dirs (COG) FileTransfer GridFTP downloads, 3 rd party transfers (COG) XSubmissionOutput Format outputs of job and file operations ResourceDiscovery Clients for the RDS ResourcePrediction Clients for the RPS MyCommunityProxy Get and decorate TG Community credentials with Grid Shib Community Log Log use of TG Community credentials

17. These will work as gadgets, portlets, or standalone applications GTLAB Example Description MyProxyExample Get a credential and store in OGCE global proxy store. JobSubmitExamples Various examples showing how to submit a grid job and get output. Dashboard Examples Runs showq on Big Red, Cobalt, and Mercury and formats output. DirectoryBrowser Displays and downloads files on a remote host via GridFTP MultipleTaskExample Shows how to couple file transfers, operations, and

18. Gadgets and Portlets

19. GTLAB Gadgets Code Base GTLAB Portlets Code Base Tomcat Web Server Tomcat Web Server + Portlet Container iGoogle Client Aggregator Compile and deploy into server Decorate with bridge and container jars, xml config files. GTLAB gadgets can also run as portlets with no code changes by using the JSF portlet bridge.

21. Example Gadget Config File <?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; ?> <Module> <ModulePrefs title=&quot;MyProxy Gadget Example&quot; scrolling=&quot;true&quot; height=&quot;500&quot;/> <Content type=&quot;url&quot; href=&quot;http://…/:8080/GTLAB/examples/MyProxyExample.jsf&quot;> </Content> </Module> Save this as MyProxy.xml and place in a Web accessible place.

22. Other Gadgets Providers Tomcat + GTLAB Gadgets Grid and Web Services (TeraGrid, OSG, etc) Other Gadgets Providers Social Network Services (Orkut, LinkedIn,etc) RSS Feed, Cloud, etc Services Gadget containers aggregate content from multiple providers . Content is aggregated on the client by the user. Nearly any web application can be a simple gadget (as Iframes)

23. Click “Add stuff” and then “Add feed or gadget”. Type the URL of your gadget.

24. GTLAB Applications as Google Gadgets: MOAB dashboard, remote directory browser, and proxy management.

25. Tomcat + Portlets and Container Grid and Web Services (TeraGrid, OSG, etc) Grid and Web Services (TeraGrid, OSG, etc) Grid and Web Services (TeraGrid, OSG, etc) HTML/HTTP SOAP/HTTP Common science gateway architecture. Aggregation is in the portlet container. Users have limited selections of components.

27. Various GTLAB applications deployed as portlets: Remote directory browsing, proxy management, and LoadLeveler queues.

28. Getting Started with GTLAB

29. GTLAB Directory Structure

33. Making New Tags and Examples

38. INCA Tags: An Extended Example

43. Here’s the resulting page. You can make into a portlet in a couple of steps. You can also tie to other tags in a pipeline.