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hrmsEjb/net/sf/jasperreports/charts/fill/JRFillPieDataset.java

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+package net.sf.jasperreports.charts.fill;
+
+import java.util.HashMap;
+import java.util.Map;
+import net.sf.jasperreports.charts.JRPieDataset;
+import net.sf.jasperreports.charts.util.PieLabelGenerator;
+import net.sf.jasperreports.engine.JRChartDataset;
+import net.sf.jasperreports.engine.JRException;
+import net.sf.jasperreports.engine.JRExpression;
+import net.sf.jasperreports.engine.JRExpressionCollector;
+import net.sf.jasperreports.engine.JRHyperlink;
+import net.sf.jasperreports.engine.JRHyperlinkHelper;
+import net.sf.jasperreports.engine.JRPrintHyperlink;
+import net.sf.jasperreports.engine.JRRuntimeException;
+import net.sf.jasperreports.engine.design.JRVerifier;
+import net.sf.jasperreports.engine.fill.JRCalculator;
+import net.sf.jasperreports.engine.fill.JRExpressionEvalException;
+import net.sf.jasperreports.engine.fill.JRFillChartDataset;
+import net.sf.jasperreports.engine.fill.JRFillExpressionEvaluator;
+import net.sf.jasperreports.engine.fill.JRFillHyperlinkHelper;
+import net.sf.jasperreports.engine.fill.JRFillObjectFactory;
+import org.jfree.data.general.Dataset;
+import org.jfree.data.general.DefaultPieDataset;
+
+public class JRFillPieDataset extends JRFillChartDataset implements JRPieDataset {
+  private DefaultPieDataset dataset = new DefaultPieDataset();
+  
+  private Map labels = null;
+  
+  private Comparable key = null;
+  
+  private Number value = null;
+  
+  private String label = null;
+  
+  private Map sectionHyperlinks;
+  
+  private JRPrintHyperlink sectionHyperlink;
+  
+  public JRFillPieDataset(JRPieDataset pieDataset, JRFillObjectFactory factory) {
+    super((JRChartDataset)pieDataset, factory);
+  }
+  
+  public JRExpression getKeyExpression() {
+    return ((JRPieDataset)this.parent).getKeyExpression();
+  }
+  
+  public JRExpression getValueExpression() {
+    return ((JRPieDataset)this.parent).getValueExpression();
+  }
+  
+  public JRExpression getLabelExpression() {
+    return ((JRPieDataset)this.parent).getLabelExpression();
+  }
+  
+  protected void customInitialize() {
+    this.dataset = new DefaultPieDataset();
+    this.labels = new HashMap();
+    this.sectionHyperlinks = new HashMap();
+  }
+  
+  protected void customEvaluate(JRCalculator calculator) throws JRExpressionEvalException {
+    this.key = (Comparable)calculator.evaluate(getKeyExpression());
+    this.value = (Number)calculator.evaluate(getValueExpression());
+    this.label = (String)calculator.evaluate(getLabelExpression());
+    if (hasSectionHyperlinks())
+      evaluateSectionHyperlink(calculator); 
+  }
+  
+  protected void evaluateSectionHyperlink(JRCalculator calculator) throws JRExpressionEvalException {
+    try {
+      this.sectionHyperlink = JRFillHyperlinkHelper.evaluateHyperlink(getSectionHyperlink(), (JRFillExpressionEvaluator)calculator, (byte)3);
+    } catch (JRExpressionEvalException e) {
+      throw e;
+    } catch (JRException e) {
+      throw new JRRuntimeException(e);
+    } 
+  }
+  
+  protected void customIncrement() {
+    this.dataset.setValue(this.key, this.value);
+    this.labels.put(this.key, this.label);
+    if (hasSectionHyperlinks())
+      this.sectionHyperlinks.put(this.key, this.sectionHyperlink); 
+  }
+  
+  public Dataset getCustomDataset() {
+    return (Dataset)this.dataset;
+  }
+  
+  public byte getDatasetType() {
+    return 1;
+  }
+  
+  public PieLabelGenerator getLabelGenerator() {
+    return (getLabelExpression() == null) ? null : new PieLabelGenerator(this.labels);
+  }
+  
+  public void collectExpressions(JRExpressionCollector collector) {
+    collector.collect(this);
+  }
+  
+  public JRHyperlink getSectionHyperlink() {
+    return ((JRPieDataset)this.parent).getSectionHyperlink();
+  }
+  
+  public boolean hasSectionHyperlinks() {
+    return !JRHyperlinkHelper.isEmpty(getSectionHyperlink());
+  }
+  
+  public Map getSectionHyperlinks() {
+    return this.sectionHyperlinks;
+  }
+  
+  public void validate(JRVerifier verifier) {
+    verifier.verify(this);
+  }
+}