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

[Andrew E. <an...@el...>]

Lol, you just beat me to it.
Never before have I written an FAQ that was useful ;)

Rogier Eggers wrote:
> 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)
>>