ICEfaces
  1. ICEfaces
  2. ICE-5759

ICEfaces 2.0 compressDOM support

          Details

          • Type: New Feature New Feature
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 2.0-Alpha2
          • Fix Version/s: 2.0-Beta1, 2.0.0
          • Component/s: Framework
          • Labels:
            None
          • Environment:
            ICEfaces, Google App Engine
          • Affects:
            Documentation (User Guide, Ref. Guide, etc.), Compatibility/Configuration

            Description

            The FastInfoset compressDOM feature appears necessary to address Classloader bugs in Google App Engine. Additionally it is useful for reducing the memory use of general ICEfaces applications.

              Activity

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              7 older comments
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              Ted Goddard added a comment -

              FastInfoset is already using namespaceAware APIs, the difficulty arises from the very strict behavior of Document.createAttributeNS():

              NAMESPACE_ERR: Raised if the qualifiedName is a malformed qualified name, if the qualifiedName has a prefix and the namespaceURI is null, if the qualifiedName has a prefix that is "xml" and the namespaceURI is different from " http://www.w3.org/XML/1998/namespace", if the qualifiedName or its prefix is "xmlns" and the namespaceURI is different from "http://www.w3.org/2000/xmlns/", or if the namespaceURI is "http://www.w3.org/2000/xmlns/" and neither the qualifiedName nor its prefix is "xmlns".

              It could be argued that not passing "http://www.w3.org/2000/xmlns/" for the namespaceURI for "xmlns" is a bug in the FastInfoset implementation, but this is not the only case where namespaces might be used without following the rules strictly. The solution is to disable error checking during FastInfoset compression (which will also improve performance). If strict DOM correctness is desired, this can be added as a later feature that specifically enables error checking.

              Show
              Ted Goddard added a comment - FastInfoset is already using namespaceAware APIs, the difficulty arises from the very strict behavior of Document.createAttributeNS(): NAMESPACE_ERR: Raised if the qualifiedName is a malformed qualified name, if the qualifiedName has a prefix and the namespaceURI is null, if the qualifiedName has a prefix that is "xml" and the namespaceURI is different from " http://www.w3.org/XML/1998/namespace ", if the qualifiedName or its prefix is "xmlns" and the namespaceURI is different from "http://www.w3.org/2000/xmlns/", or if the namespaceURI is "http://www.w3.org/2000/xmlns/" and neither the qualifiedName nor its prefix is "xmlns". It could be argued that not passing "http://www.w3.org/2000/xmlns/" for the namespaceURI for "xmlns" is a bug in the FastInfoset implementation, but this is not the only case where namespaces might be used without following the rules strictly. The solution is to disable error checking during FastInfoset compression (which will also improve performance). If strict DOM correctness is desired, this can be added as a later feature that specifically enables error checking.
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              Mandeep Hayher added a comment -

              Server:Tomcat6
              Browser: FF3.6

              Compat Component-showcase: scripts ran successfully but following error was seen on the server console:

              SEVERE: Error Rendering View[/showcase.xhtml]
              java.lang.NullPointerException
              at org.icefaces.event.WindowAndViewIDSetup$1.encode(WindowAndViewIDSetup.java:52)
              at org.icefaces.event.UIOutputWriter.encodeBegin(UIOutputWriter.java:32)

              Compat AuctionMonitor: test scripts ran successfully but following error seen on the server console:

              SEVERE: Error Rendering View[/auctionMonitor.xhtml]
              java.lang.NullPointerException
              at org.icefaces.event.WindowAndViewIDSetup$1.encode(WindowAndViewIDSetup.java:52)

              java.lang.NullPointerException
              at org.icefaces.event.WindowAndViewIDSetup$1.encode(WindowAndViewIDSetup.java:52)
              at org.icefaces.event.UIOutputWriter.encodeBegin(UIOutputWriter.java:32)

              Auction: still cannot load the application, Still seeing error on the browser:
              java.lang.NoClassDefFoundError: com/sun/xml/fastinfoset/dom/DOMDocumentSerializer

              Show
              Mandeep Hayher added a comment - Server:Tomcat6 Browser: FF3.6 Compat Component-showcase: scripts ran successfully but following error was seen on the server console: SEVERE: Error Rendering View [/showcase.xhtml] java.lang.NullPointerException at org.icefaces.event.WindowAndViewIDSetup$1.encode(WindowAndViewIDSetup.java:52) at org.icefaces.event.UIOutputWriter.encodeBegin(UIOutputWriter.java:32) Compat AuctionMonitor: test scripts ran successfully but following error seen on the server console: SEVERE: Error Rendering View [/auctionMonitor.xhtml] java.lang.NullPointerException at org.icefaces.event.WindowAndViewIDSetup$1.encode(WindowAndViewIDSetup.java:52) java.lang.NullPointerException at org.icefaces.event.WindowAndViewIDSetup$1.encode(WindowAndViewIDSetup.java:52) at org.icefaces.event.UIOutputWriter.encodeBegin(UIOutputWriter.java:32) Auction: still cannot load the application, Still seeing error on the browser: java.lang.NoClassDefFoundError: com/sun/xml/fastinfoset/dom/DOMDocumentSerializer
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              Ted Goddard added a comment -

              auction appears to be missing FastInfoset.jar, so please ensure that the .jar is present in auction.war.

              The NullPointerException will require further investigation.

              Show
              Ted Goddard added a comment - auction appears to be missing FastInfoset.jar, so please ensure that the .jar is present in auction.war. The NullPointerException will require further investigation.
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              Mandeep Hayher added a comment -

              Glimmer revison# 21717
              Server: Tomcat6
              Browser: FF3.6

              Tested by manually placing FastInfoset.jar in lib folder.
              Auction: all pass
              Basic: all pass
              ElementUpdate: all pass
              Fajax: all pass
              Scopes: Window Scope test failes. counter is reset when user revisited the page. Rest pass.

              Show
              Mandeep Hayher added a comment - Glimmer revison# 21717 Server: Tomcat6 Browser: FF3.6 Tested by manually placing FastInfoset.jar in lib folder. Auction: all pass Basic: all pass ElementUpdate: all pass Fajax: all pass Scopes: Window Scope test failes. counter is reset when user revisited the page. Rest pass.
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              Ken Fyten added a comment -

              QA confirms that the Window Scope test issue is not related to the compressDOM setting. Fixed!

              Show
              Ken Fyten added a comment - QA confirms that the Window Scope test issue is not related to the compressDOM setting. Fixed!

                People

                • Assignee:
                  Ted Goddard
                  Reporter:
                  Ted Goddard
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                  Dates

                  • Created:
                    Updated:
                    Resolved: