[Rxsm-users] image resizing without X possible?

[Rogier E. <R.E...@st...>]

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)