[xwiki-devs] Chart - xwiki-devs@xwiki.org

4 Aug 2008

Hi Devs

I want to make a graph with a given table, but i don`t want to see the 
table in the xwiki page, so i`m trying to make the graph inside my function:

                    Map data = new HashMap();

                    data.put("x", "1");
                    data.put("y", "110");
                    ChartingPlugin chartplugin = new 
ChartingPlugin("chartingplugin", ChartingPlugin.class.toString(), context);
                   chartplugin.init(context);
                 //  ChartingPluginApi chart = new 
ChartingPluginApi(chartplugin,context);

                   ChartParams chartParams = new ChartParams();
                   try {
                       chartParams = new ChartParams(data,
                       DefaultChartParams.getInstance(), true);
                       chartParams.addParam(new 
MapChartParam("source=type:table", false));
                       chartParams.addParam(new 
MapChartParam("type=pie", false));
                     //  chartParams.set("SOURCE", "type:table");
                      // chartParams.set("TYPE", "pie");
                       chartParams.check();
                   } catch (ParamException e) {

                   }

                *   Chart chart = new ChartImpl(chartParams,null,null);
                  try {
                        chart = chartplugin.generateChart(chartParams, 
context);
                   } catch (GenerateException ge) {

                   }*

                     String title = chartParams.getString(
                     ChartParams.TITLE_PREFIX+ChartParams.TITLE_SUFFIX);
                Integer height = chartParams.getInteger(ChartParams.HEIGHT);
                Integer width = chartParams.getInteger(ChartParams.WIDTH);
                Map imageAttr = 
chartParams.getMap(ChartParams.IMAGE_ATTRIBUTES);
                Map linkAttr = 
chartParams.getMap(ChartParams.LINK_ATTRIBUTES);

                // output the image links
                StringBuffer sbuffer = new StringBuffer();
                sbuffer.append("<a href=\""+ chart.getPageURL() +
"\" ");
                if (title != null) {
                    sbuffer.append("title=\"" + title +
"\"");
                }
                if (linkAttr != null) {
                    Iterator it = linkAttr.keySet().iterator();
                    while (it.hasNext()) {
                        String name = (String)it.next();
                        String value = (String)imageAttr.get(name);
                        sbuffer.append(name+"=\"" + value + "\"
");
                    }
                }
                sbuffer.append(">");
                sbuffer.append("<img src=\"");
                sbuffer.append(chart.getImageURL());
                sbuffer.append("\" ");
                if (title != null) {
                    sbuffer.append("alt=\""+ title + "\"
");
                }
                sbuffer.append("height=\"" + height + "\"
");
                sbuffer.append("width=\"" + width + "\" ");
                if (imageAttr != null) {
                    Iterator it = imageAttr.keySet().iterator();
                    while (it.hasNext()) {
                        String name = (String)it.next();
                        if (name != ChartParams.HEIGHT && name != 
ChartParams.WIDTH) {
                            String value = (String)imageAttr.get(name);
                            sbuffer.append(name + "=\"" + value +
"\" ");
                        } else {
                             }
                    }
                }
                sbuffer.append("/>");
                sbuffer.append("</a>");

                  return sbuffer.toString();

I get some problems in :
*   Chart chart = new ChartImpl(chartParams,null,null);
                  try {
                        chart = chartplugin.generateChart(chartParams, 
context);
                   } catch (GenerateException ge) {

                   }

*I think is some problem with the source,

Any ideas?

Thanks in advance :)