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Re: [jCharts-users] X11/UNIX problem again
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From: Ashley T. <at...@uk...> - 2004-01-03 14:24:06
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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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