Claudio Donaté 8 Years Ago Hello, can you elaborate about Vaading? Which are its uses in the Liferay context? Please sign in to reply. Reply as... Cancel David H Nebinger Claudio Donaté 8 Years Ago Vaadin in general is covered at http://www.vaadin.com, but basically it is a framework based on GWT that allows you to write portlets entirely in java (no HTML, no JS, and actually very little with respect to the portlet API), yet when they are deployed they are fast AJAX-based portlets (so they natively handle partial page updates, etc.).Uses in the Liferay context? Well there are functional uses (creating AJAX portlets, business portlets, etc.) and there are environmental uses (have lots of java devs but few web/javascript gurus), etc. It's often not so much of what can you do with Vaadin as what you shouldn't do in Vaadin.If you check my blog you'll see I have a chart portlet written in Vaadin, shows a chart in a page that responds to user events and would work for a dashboard presentation.There's lots of good reasons to use Vaadin and some reasons not to. I don't think there's a general rule about it, however. Please sign in to reply. Reply as... Cancel
David H Nebinger Claudio Donaté 8 Years Ago Vaadin in general is covered at http://www.vaadin.com, but basically it is a framework based on GWT that allows you to write portlets entirely in java (no HTML, no JS, and actually very little with respect to the portlet API), yet when they are deployed they are fast AJAX-based portlets (so they natively handle partial page updates, etc.).Uses in the Liferay context? Well there are functional uses (creating AJAX portlets, business portlets, etc.) and there are environmental uses (have lots of java devs but few web/javascript gurus), etc. It's often not so much of what can you do with Vaadin as what you shouldn't do in Vaadin.If you check my blog you'll see I have a chart portlet written in Vaadin, shows a chart in a page that responds to user events and would work for a dashboard presentation.There's lots of good reasons to use Vaadin and some reasons not to. I don't think there's a general rule about it, however. Please sign in to reply. Reply as... Cancel
Jack Bakker 8 Years Ago Your Vaadin 7 Control Panel (V7CP) v1.0.3.0 is very useful for me ! Thanks again David. Please sign in to reply. Reply as... Cancel
Joseph Toman 8 Years Ago Is this the arcusys code or some entirely new plugin? When would you use this as opposed to the all-in-one method promoted by Vaadin? Please sign in to reply. Reply as... Cancel David H Nebinger Joseph Toman 8 Years Ago An entirely new plugin, it includes functionality not provided by the Arcusys version (theme editing/import/export, automatic upgrade of Liferay from V6 to V7, more explanations about the purpose of the control panel, automatic portlets upgrade when Vaadin version is changed, ...).When would you use this instead of the all in one approach? That's actually covered in another blog. One is what happens when you use the "all in one" approach for two different portlets but one portlet is created with, say, 7.4 and the other is 7.5 and they are both on the same portal page? How can the browser resolve which version of the engine to run? Can both versions run in the same page? Using the shared environment, all portlets share the same version of Vaadin so these kinds of issues are avoided.There's also duplication of resources. If you create a theme, you have to ship that with every portlet because nothing is shared. In the shared Vaadin environment, your theme can be global on the portal level, your portlets don't have to duplicate all of the code.There's also widgetset concerns. If your two plugins each use a different set of add-ons, they'll each have their own compiled widgetset. When on the same portal page, will they play well together or will there be some incompatibility that crops up? In the shared environment, the widgetset is compiled at the portal level so all portlets share the same widgetset regardless if they use all of the add-ons or not.I think the thing Vaadin was trying to resolve was the complexities of using Vaadin in the portal. The control panel was released for V6 in the Liferay 6 line, but there was no real explanation of what it was for or how to use it. I spent a great deal of time on V6 and the old control panel trying to figure out the add-ons, how they get deployed, how to update Vaadin in the portal and portlet level, theming, etc. The V6 control panel is crucial in using V6 in the portal, but for the life of me figuring all of that out on your own is a pain.For the V7 control panel, I wanted to incorporate similar functionality from the old V6 and Arcusys control panel but provide significant add-on value such as conforming with the standard Liferay control panel theme, explaining all of the parts of the control panel and using the shared V7 environment, handling the auto upgrade from V6 to V7 (manually there's a bunch of steps you'd have to do to get it all done), etc.If you're interested in the V7 control panel, I have a lot more blog posts here on Liferay.com covering it and it's various features.And, as always, I'm more than interested in feedback and suggestions... Please sign in to reply. Reply as... Cancel
David H Nebinger Joseph Toman 8 Years Ago An entirely new plugin, it includes functionality not provided by the Arcusys version (theme editing/import/export, automatic upgrade of Liferay from V6 to V7, more explanations about the purpose of the control panel, automatic portlets upgrade when Vaadin version is changed, ...).When would you use this instead of the all in one approach? That's actually covered in another blog. One is what happens when you use the "all in one" approach for two different portlets but one portlet is created with, say, 7.4 and the other is 7.5 and they are both on the same portal page? How can the browser resolve which version of the engine to run? Can both versions run in the same page? Using the shared environment, all portlets share the same version of Vaadin so these kinds of issues are avoided.There's also duplication of resources. If you create a theme, you have to ship that with every portlet because nothing is shared. In the shared Vaadin environment, your theme can be global on the portal level, your portlets don't have to duplicate all of the code.There's also widgetset concerns. If your two plugins each use a different set of add-ons, they'll each have their own compiled widgetset. When on the same portal page, will they play well together or will there be some incompatibility that crops up? In the shared environment, the widgetset is compiled at the portal level so all portlets share the same widgetset regardless if they use all of the add-ons or not.I think the thing Vaadin was trying to resolve was the complexities of using Vaadin in the portal. The control panel was released for V6 in the Liferay 6 line, but there was no real explanation of what it was for or how to use it. I spent a great deal of time on V6 and the old control panel trying to figure out the add-ons, how they get deployed, how to update Vaadin in the portal and portlet level, theming, etc. The V6 control panel is crucial in using V6 in the portal, but for the life of me figuring all of that out on your own is a pain.For the V7 control panel, I wanted to incorporate similar functionality from the old V6 and Arcusys control panel but provide significant add-on value such as conforming with the standard Liferay control panel theme, explaining all of the parts of the control panel and using the shared V7 environment, handling the auto upgrade from V6 to V7 (manually there's a bunch of steps you'd have to do to get it all done), etc.If you're interested in the V7 control panel, I have a lot more blog posts here on Liferay.com covering it and it's various features.And, as always, I'm more than interested in feedback and suggestions... Please sign in to reply. Reply as... Cancel
Goran Petanjek 8 Years Ago Hi David!Can you please tell me how did you solve double compression problem with Liferay + Vaadin 7.5? Vaadin introduced in 7.5 new feature to serve compressed .js (and in 7.5.1 .css) files build by widgetset compilation and Liferay apperently double compress those file so I get Content Encoding error for all .js and .css files served by Vaadin servlet.I turned off Liferay GZip filter by setting: com.liferay.portal.servlet.filters.gzip.GZipFilter=false, but I still get Content Encoding errors.Can you please help me, thank you in advance and best regards,Goran Petanjek Please sign in to reply. Reply as... Cancel Goran Petanjek Goran Petanjek 8 Years Ago Hi again!After further investigation appears that com.liferay.portal.servlet.filters.language.LanguageFilter is the one causing problems. If I turn it off, Vaadin portlets are working without issues, and if it is on it causes content encoding errors and js files are not loaded.Maybe because LanguageFilter are processing js files which are compressed?I need multi language support in portal, so I can't leave it off Please sign in to reply. Reply as... Cancel David H Nebinger Goran Petanjek 8 Years Ago Hi, Goran, I'll look into it. Can you post to a forum thread so it will be visible to others not subscribed to the blog? Please sign in to reply. Reply as... Cancel Goran Petanjek David H Nebinger 8 Years Ago Hi David,Thank you for quick response. Forum thread opened: https://www.liferay.com/community/forums/-/message_boards/message/56507472Best regards,Goran Petanjek Please sign in to reply. Reply as... Cancel
Goran Petanjek Goran Petanjek 8 Years Ago Hi again!After further investigation appears that com.liferay.portal.servlet.filters.language.LanguageFilter is the one causing problems. If I turn it off, Vaadin portlets are working without issues, and if it is on it causes content encoding errors and js files are not loaded.Maybe because LanguageFilter are processing js files which are compressed?I need multi language support in portal, so I can't leave it off Please sign in to reply. Reply as... Cancel David H Nebinger Goran Petanjek 8 Years Ago Hi, Goran, I'll look into it. Can you post to a forum thread so it will be visible to others not subscribed to the blog? Please sign in to reply. Reply as... Cancel Goran Petanjek David H Nebinger 8 Years Ago Hi David,Thank you for quick response. Forum thread opened: https://www.liferay.com/community/forums/-/message_boards/message/56507472Best regards,Goran Petanjek Please sign in to reply. Reply as... Cancel
David H Nebinger Goran Petanjek 8 Years Ago Hi, Goran, I'll look into it. Can you post to a forum thread so it will be visible to others not subscribed to the blog? Please sign in to reply. Reply as... Cancel Goran Petanjek David H Nebinger 8 Years Ago Hi David,Thank you for quick response. Forum thread opened: https://www.liferay.com/community/forums/-/message_boards/message/56507472Best regards,Goran Petanjek Please sign in to reply. Reply as... Cancel
Goran Petanjek David H Nebinger 8 Years Ago Hi David,Thank you for quick response. Forum thread opened: https://www.liferay.com/community/forums/-/message_boards/message/56507472Best regards,Goran Petanjek Please sign in to reply. Reply as... Cancel