Re: [Rxsm-users] image resizing without X possible?

[Rogier E. <ro...@r4...>]

Doh. Sorry, just noticed that this is covered in the FAQ. Must have
overlooked that.

Excerpt from the FAQ:

Gallery and HTML pages fail to upload images



        Gallery and HTML pages use a thumbnailer to generate the smaller
        images. On UNIX systems it is possible for the application
        server to fail to find an XServer to draw on. If this is the
        case then put 
        
        export CATALINA_OPTS='-Djava.awt.headless=true' 
        
        in the tomcat startup scripts. 
        Note: that this only works for Tomcat, if you are using any
        other servlet container you will need to check their
        documentation.



On Thu, 2005-09-29 at 22:31 +0200, Rogier Eggers wrote:

> I am setting up a small testsite with XSM from a server in my LAN. I
> want to test the gallery creation with XSM, but I just noticed that
> thumbnail creation requires X. So I installed X, hoping that XSM only
> depends on the X libraries, but it seems that it even requires a
> running X server.  Really running an X server on that box is something
> I prefer not to do.
> 
> Are there workarounds, so that X is not required? 
> 
> Or otherwise, can I let it connect with another X server on my LAN
> through the DISPLAY variable?
> 
> I tried exporting the display variable to "someotherbox:1.0" just on
> the commandline and then restarting tomcat. But it doesn't help.
> 
> The error message I currently get is: 
> "Error: Can't connect to X11 window server using ':0.0' as the value
> of the DISPLAY variable."
> 
> Debug output below.
> 
> Thanks for any tips !
> 
> 
> 
> Debug output:
> 
> java.lang.InternalError: Can't connect to X11 window server using
> ':0.0' as the value of the DISPLAY variable. 
> 
> 	at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
> 	at sun.awt.X11GraphicsEnvironment.(X11GraphicsEnvironment.java:134)
> 	at java.lang.Class.forName0(Native Method)
> 	at java.lang.Class.forName(Class.java:141)
> 	at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
> 	at java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1041)
> 	at com.rectang.xsm.widget.PreviewedImage.thumbnail(PreviewedImage.java:178)
> 	at com.rectang.xsm.widget.PreviewedImage.save(PreviewedImage.java:124)
> 	at com.rectang.xsm.types.GalleryPreviewedImage.save(Gallery.java:243)
> 	at com.rectang.xsm.doc.DocList.save(DocList.java:62)
> 	at com.rectang.xsm.doc.DocGroup.save(DocGroup.java:146)
> 	at com.rectang.xsm.io.XSMDocument.generate(XSMDocument.java:367)
> 	at com.rectang.xsm.handlers.Page.generate(Page.java:820)
> 	at com.rectang.xsm.handlers.Page.generate(Page.java:794)
> 	at com.rectang.xsm.handlers.Page.handle(Page.java:686)
> 	at com.rectang.xsm.XSM.doGet(XSM.java:153)
> 	at com.rectang.xsm.XSM.doPost(XSM.java:179)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
> 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
> 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
> 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
> 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> 	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
> 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
> 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
> 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
> 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
> 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
> 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
> 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
> 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> 	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
> 	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
> 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
> 	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
> 	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
> 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
> 	at java.lang.Thread.run(Thread.java:534)