HRMS/hrmsEjb/net/sf/jasperreports/charts/fill/JRFillHighLowDataset.java

package net.sf.jasperreports.charts.fill;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import net.sf.jasperreports.charts.JRHighLowDataset;
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.xy.DefaultHighLowDataset;

public class JRFillHighLowDataset extends JRFillChartDataset implements JRHighLowDataset {
  private String series = null;
  
  private List elements = new ArrayList();
  
  private Date date = null;
  
  private Number high = null;
  
  private Number low = null;
  
  private Number open = null;
  
  private Number close = null;
  
  private Number volume = null;
  
  private JRPrintHyperlink itemHyperlink;
  
  private List itemHyperlinks;
  
  public JRFillHighLowDataset(JRHighLowDataset dataset, JRFillObjectFactory factory) {
    super((JRChartDataset)dataset, factory);
  }
  
  protected void customInitialize() {
    this.elements = new ArrayList();
    this.itemHyperlinks = new ArrayList();
  }
  
  protected void customEvaluate(JRCalculator calculator) throws JRExpressionEvalException {
    this.series = (String)calculator.evaluate(getSeriesExpression());
    this.date = (Date)calculator.evaluate(getDateExpression());
    this.high = (Number)calculator.evaluate(getHighExpression());
    this.low = (Number)calculator.evaluate(getLowExpression());
    this.open = (Number)calculator.evaluate(getOpenExpression());
    this.close = (Number)calculator.evaluate(getCloseExpression());
    this.volume = (Number)calculator.evaluate(getVolumeExpression());
    if (hasItemHyperlink())
      evaluateSectionHyperlink(calculator); 
  }
  
  protected void evaluateSectionHyperlink(JRCalculator calculator) throws JRExpressionEvalException {
    try {
      this.itemHyperlink = JRFillHyperlinkHelper.evaluateHyperlink(getItemHyperlink(), (JRFillExpressionEvaluator)calculator, (byte)3);
    } catch (JRExpressionEvalException e) {
      throw e;
    } catch (JRException e) {
      throw new JRRuntimeException(e);
    } 
  }
  
  protected void customIncrement() {
    this.elements.add(new HighLowElement(this.date, this.high, this.low, this.open, this.close, this.volume));
    if (hasItemHyperlink())
      this.itemHyperlinks.add(this.itemHyperlink); 
  }
  
  public Dataset getCustomDataset() {
    int size = this.elements.size();
    if (size > 0) {
      Date[] dateArray = new Date[size];
      double[] highArray = new double[size];
      double[] lowArray = new double[size];
      double[] openArray = new double[size];
      double[] closeArray = new double[size];
      double[] volumeArray = new double[size];
      for (int i = 0; i < this.elements.size(); i++) {
        HighLowElement bean = this.elements.get(i);
        dateArray[i] = new Date(bean.getDate().getTime());
        highArray[i] = bean.getHigh().doubleValue();
        lowArray[i] = bean.getLow().doubleValue();
        openArray[i] = bean.getOpen().doubleValue();
        closeArray[i] = bean.getClose().doubleValue();
        volumeArray[i] = bean.getVolume().doubleValue();
      } 
      return (Dataset)new DefaultHighLowDataset(this.series, dateArray, highArray, lowArray, openArray, closeArray, volumeArray);
    } 
    return null;
  }
  
  public JRExpression getSeriesExpression() {
    return ((JRHighLowDataset)this.parent).getSeriesExpression();
  }
  
  public JRExpression getDateExpression() {
    return ((JRHighLowDataset)this.parent).getDateExpression();
  }
  
  public JRExpression getHighExpression() {
    return ((JRHighLowDataset)this.parent).getHighExpression();
  }
  
  public JRExpression getLowExpression() {
    return ((JRHighLowDataset)this.parent).getLowExpression();
  }
  
  public JRExpression getOpenExpression() {
    return ((JRHighLowDataset)this.parent).getOpenExpression();
  }
  
  public JRExpression getCloseExpression() {
    return ((JRHighLowDataset)this.parent).getCloseExpression();
  }
  
  public JRExpression getVolumeExpression() {
    return ((JRHighLowDataset)this.parent).getVolumeExpression();
  }
  
  private static class HighLowElement {
    Date date;
    
    Number high;
    
    Number low;
    
    Number open;
    
    Number close;
    
    Number volume;
    
    public HighLowElement(Date date, Number high, Number low, Number open, Number close, Number volume) {
      if (date == null)
        throw new JRRuntimeException("Date value is null in high-low series."); 
      this.date = date;
      if (high == null)
        throw new JRRuntimeException("High value is null in high-low series."); 
      this.high = high;
      if (low == null)
        throw new JRRuntimeException("Low value is null in high-low series."); 
      this.low = low;
      if (open == null)
        throw new JRRuntimeException("Open value is null in high-low series."); 
      this.open = open;
      if (close == null)
        throw new JRRuntimeException("Close value is null in high-low series."); 
      this.close = close;
      if (volume == null)
        throw new JRRuntimeException("Volume value is null in high-low series."); 
      this.volume = volume;
    }
    
    public Date getDate() {
      return this.date;
    }
    
    public void setDate(Date date) {
      this.date = date;
    }
    
    public Number getHigh() {
      return this.high;
    }
    
    public void setHigh(Number high) {
      this.high = high;
    }
    
    public Number getLow() {
      return this.low;
    }
    
    public void setLow(Number low) {
      this.low = low;
    }
    
    public Number getOpen() {
      return this.open;
    }
    
    public void setOpen(Number open) {
      this.open = open;
    }
    
    public Number getClose() {
      return this.close;
    }
    
    public void setClose(Number close) {
      this.close = close;
    }
    
    public Number getVolume() {
      return this.volume;
    }
    
    public void setVolume(Number volume) {
      this.volume = volume;
    }
  }
  
  public byte getDatasetType() {
    return 7;
  }
  
  public void collectExpressions(JRExpressionCollector collector) {
    collector.collect(this);
  }
  
  public JRHyperlink getItemHyperlink() {
    return ((JRHighLowDataset)this.parent).getItemHyperlink();
  }
  
  public boolean hasItemHyperlink() {
    return !JRHyperlinkHelper.isEmpty(getItemHyperlink());
  }
  
  public List getItemHyperlinks() {
    return this.itemHyperlinks;
  }
  
  public void validate(JRVerifier verifier) {
    verifier.verify(this);
  }
}