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Re: [jCharts-users] X11/UNIX problem again
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From: Nathaniel G. A. <nat...@ya...> - 2004-01-03 17:18:00
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I don't know. Are you sure the code below is what is executing...nothing is cached, etc...?
Can you try a newer jdk? Perhaps look to see if anyone else has this problem on the java bug
lists?
--- Ashley Towers <at...@uk...> wrote:
> Im using JDK 1.4.01
>
> and im using jCharts 0.7.4
>
> Thanks
> Ash
>
>
> ----- Original Message -----
> From: "Nathaniel G. Auvil" <nat...@ya...>
> To: <jch...@li...>
> Sent: Saturday, January 03, 2004 2:03 PM
> Subject: Re: [jCharts-users] X11/UNIX problem again
>
>
> >
> > what jdk are you using?
> >
> >
> > --- Ashley Towers <at...@uk...> wrote:
> > > Im having problems with this X11 (Unix based problem). Basically i got
> the code working on
> > > windows but not solaris, i've tried the
> > >
> > > try{ System.setProperty("java.awt.headless","true");}catch( Throwable
> throwable ){}
> > >
> > > fix but it doesn't seem to be working, im not sure if i've got it in the
> wrong place or if i've
> > > done it wrong or what? Its a servlet running on Sun One WebServer so i
> can't run it from the
> > > command line and thus add the -D<thingy>
> > >
> > > any one any ideas???
> > >
> > >
> > > i've got the code:
> > >
> > > import org.jCharts.chartData.ChartDataException;
> > > import org.jCharts.chartData.PieChartDataSet;
> > > import org.jCharts.encoders.ServletEncoderHelper;
> > > import org.jCharts.nonAxisChart.PieChart2D;
> > > import org.jCharts.properties.*;
> > >
> > > import javax.servlet.ServletException;
> > > import javax.servlet.http.*;
> > > import java.awt.*;
> > > import java.io.IOException;
> > >
> > >
> > > public class PieChart2DServlet extends HttpServlet
> > > {
> > > //---all of my pie charts serviced by this Servlet will have the same
> properties.
> > > private PieChart2DProperties properties;
> > > private LegendProperties legendProperties;
> > > private ChartProperties chartProperties;
> > >
> > > private int width = 550;
> > > private int height = 350;
> > >
> > >
> > >
> /***************************************************************************
> *******************
> > > *
> > >
> > >
> ****************************************************************************
> ******************/
> > > public void init()
> > > {
> > > // Solaris code to prevent X11 Server errors
> > > try{
> System.setProperty("java.awt.headless","true");}catch( Throwable throwable
> > > ){}
> > >
> > > //---all charts of this type of pie chart are going to
> share the same
> > > properties.
> > > this.properties = new PieChart2DProperties();
> > >
> > > this.legendProperties = new LegendProperties();
> > > this.legendProperties.setNumColumns( 2 );
> > > this.legendProperties.setPlacement( LegendProperties.RIGHT );
> > >
> > > this.chartProperties = new ChartProperties();
> > > }
> > >
> > >
> > >
> /***************************************************************************
> *******************
> > > *
> > >
> > >
> ****************************************************************************
> ******************/
> > > public void service( HttpServletRequest req, HttpServletResponse
> response ) throws
> > > ServletException, IOException
> > > {
> > >
> > >
> > >
> > >
> > > try
> > > {
> > > PieChart2D pieChart2D = new PieChart2D( this.getData(req),
> this.legendProperties,
> > > this.chartProperties, this.width, this.height );
> > > ServletEncoderHelper.encodeJPEG13( pieChart2D, 1.0f, response );
> > > }
> > > catch( Throwable throwable )
> > > {
> > > //HACK do your error handling here...
> > > throwable.printStackTrace();
> > > }
> > > }
> > >
> > >
> > >
> /***************************************************************************
> ***************
> > > * Returns a Tests a 'real' data set and usage.
> > > *
> > > * @throws ChartDataException
> > >
> ****************************************************************************
> **************/
> > > private PieChartDataSet getData(HttpServletRequest req) throws
> ChartDataException
> > > {
> > >
> > > String []y = req.getParameterValues("y");
> > > // Defines the data
> > > double[] data = new double[y.length];
> > >
> > > for (int i =0; i < y.length; i++){
> > > Double d = (Double) Double.valueOf(y[i]);
> > > data[i] = (double) d.doubleValue();
> > > }
> > >
> > > // Defines the paints
> > > Paint[] paints = new Paint[data.length];
> > > for (int i = 0; i < paints.length; i++){
> > > paints[i] = possible_paints[i];
> > > }
> > >
> > > // Defines labels for each value
> > > String[] labels = req.getParameterValues("x");
> > >
> > > // Defines the title
> > > String title = "";
> > > title = req.getParameter("title");
> > >
> > > return new PieChartDataSet(title, data, labels, paints,
> this.properties );
> > > }
> > >
> > > // Defines the possible_paints MAX 9
> > > private Paint[] possible_paints = new Paint[]{Color.blue,
> > > Color.red,
> > > Color.green,
> > > Color.yellow,
> > > Color.white,
> > > Color.gray,
> > > Color.orange,
> > > Color.pink,
> > > Color.blue,
> > > Color.red,
> > > Color.green,
> > > Color.yellow,
> > > Color.white,
> > > Color.gray,
> > > Color.orange,
> > > Color.pink,
> > > Color.blue};
> > > }
> > >
> > >
> > >
> > >
> > >
> > > im getting the errors:
> > >
> > > [19/Dec/2003:08:12:18] failure (13591): Internal error: Unexpected
> error condition thrown
> > > (unknown exception,no description), stack: 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.<clinit>(X11GraphicsEnvironment.java:125)
> > >
> > > at java.lang.Class.forName0(Native Method)
> > >
> > > at java.lang.Class.forName(Class.java:140)
> > >
> > > at
> java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment
> .java:62)
> > >
> > > at java.awt.Font.initializeFont(Font.java:303)
> > >
> > > at java.awt.Font.<init>(Font.java:339)
> > >
> > > at org.jCharts.properties.util.ChartFont.<clinit>(Unknown Source)
> > >
> > > at org.jCharts.properties.PieChart2DProperties.<init>(Unknown Source)
> > >
> > > at PieChart2DServlet.init(PieChart2DServlet.java:30)
> > >
> > > at javax.servlet.GenericServlet.init(GenericServlet.java:258)
> > >
> > > at
> com.iplanet.server.http.servlet.NSServletEntity.load(NSServletEntity.java:40
> 5)
> > >
> > > at
> com.iplanet.server.http.servlet.NSServletEntity.update(NSServletEntity.java:
> 173)
> > >
> > > at
> com.iplanet.server.http.servlet.NSServletRunner.Service(NSServletRunner.java
> :416)
> > >
> > >
> > > [02/Jan/2004:10:31:45] failure (23997): Internal error: Unexpected
> error condition thrown
> > > (unknown exception,no description), stack:
> java.lang.NoClassDefFoundError:
> > > sun/io/ByteToCharEUC_KR
> > >
> > > at sun.awt.font.NativeFontWrapper.registerFonts(Native Method)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.addPathFonts(SunGraphicsEnvironment.java:7
> 36)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.registerFonts(SunGraphicsEnvironment.java:
> 587)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.access$100(SunGraphicsEnvironment.java:49)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment$2.run(SunGraphicsEnvironment.java:209)
> > >
> > > at java.security.AccessController.doPrivileged(Native Method)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.loadFonts(SunGraphicsEnvironment.java:203)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.initTerminalNames(SunGraphicsEnvironment.j
> ava:1029)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.initCompositeFonts(SunGraphicsEnvironment.
> java:795)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.access$200(SunGraphicsEnvironment.java:49)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment$1.run(SunGraphicsEnvironment.java:160)
> > >
> > > at java.security.AccessController.doPrivileged(Native Method)
> > >
> > > at
> sun.java2d.SunGraphicsEnvironment.<init>(SunGraphicsEnvironment.java:78)
> > >
> > > at
> sun.awt.X11GraphicsEnvironment.<init>(X11GraphicsEnvironment.java:150)
> > >
> > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> > >
> > > at
> > >
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
> sorImpl.java:39)
> > >
> > > at
> > >
> >
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
> torAccessorImpl.java:27)
> > >
> > >
> > > at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
> > >
> > > at java.lang.Class.newInstance0(Class.java:306)
> > >
> > > at java.lang.Class.newInstance(Class.java:259)
> > >
> > > at
> java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment
> .java:62)
> > >
> > > at java.awt.Font.initializeFont(Font.java:303)
> > >
> > > at java.awt.Font.<init>(Font.java:339)
> > >
> > > at org.jCharts.properties.util.ChartFont.<clinit>(Unknown Source)
> > >
> > > at org.jCharts.properties.PieChart2DProperties.<init>(Unknown Source)
> > >
> > > at PieChart2DServlet.init(PieChart2DServlet.java:30)
> > >
> > > at javax.servlet.GenericServlet.init(GenericServlet.java:258)
> > >
> > > at
> com.iplanet.server.http.servlet.NSServletEntity.load(NSServletEntity.java:40
> 5)
> > >
> > > at
> com.iplanet.server.http.servlet.NSServletEntity.update(NSServletEntity.java:
> 173)
> > >
> > > at
> com.iplanet.server.http.servlet.NSServletRunner.Service(NSServletRunner.java
> :416)
> >
> >
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