/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
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.JRFillHyperlinkHelper;
import net.sf.jasperreports.engine.fill.JRFillObjectFactory;
import org.jfree.data.general.Dataset;
import org.jfree.data.xy.DefaultHighLowDataset;
/**
* @author Ionut Nedelcu (ionutned@users.sourceforge.net)
* @version $Id: JRFillHighLowDataset.java 3938 2010-08-19 14:59:36Z teodord $
*/
public class JRFillHighLowDataset extends JRFillChartDataset implements JRHighLowDataset
{
/**
*
*/
private String series;
private List elements = new ArrayList();
private Date date;
private Number high;
private Number low;
private Number open;
private Number close;
private Number volume;
private JRPrintHyperlink itemHyperlink;
private List itemHyperlinks;
/**
*
*/
public JRFillHighLowDataset(JRHighLowDataset dataset, JRFillObjectFactory factory)
{
super(dataset, factory);
}
protected void customInitialize()
{
elements = new ArrayList();
itemHyperlinks = new ArrayList();
}
protected void customEvaluate(JRCalculator calculator) throws JRExpressionEvalException
{
series = (String) calculator.evaluate(getSeriesExpression());
date = (Date) calculator.evaluate(getDateExpression());
high = (Number) calculator.evaluate(getHighExpression());
low = (Number) calculator.evaluate(getLowExpression());
open = (Number) calculator.evaluate(getOpenExpression());
close = (Number) calculator.evaluate(getCloseExpression());
volume = (Number) calculator.evaluate(getVolumeExpression());
if (hasItemHyperlink())
{
evaluateSectionHyperlink(calculator);
}
}
protected void evaluateSectionHyperlink(JRCalculator calculator) throws JRExpressionEvalException
{
try
{
itemHyperlink = JRFillHyperlinkHelper.evaluateHyperlink(getItemHyperlink(), calculator, JRExpression.EVALUATION_DEFAULT);
}
catch (JRExpressionEvalException e)
{
throw e;
}
catch (JRException e)
{
throw new JRRuntimeException(e);
}
}
protected void customIncrement()
{
elements.add(new HighLowElement(date, high, low, open, close, volume));
if (hasItemHyperlink())
{
itemHyperlinks.add(itemHyperlink);
}
}
public Dataset getCustomDataset()
{
int size = 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 < elements.size(); i++) {
HighLowElement bean = (HighLowElement) 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 new DefaultHighLowDataset(series, dateArray, highArray, lowArray, openArray, closeArray, volumeArray);
}
return null;
}
public Object getLabelGenerator()
{
return null;
}
public JRExpression getSeriesExpression()
{
return ((JRHighLowDataset)parent).getSeriesExpression();
}
public JRExpression getDateExpression()
{
return ((JRHighLowDataset)parent).getDateExpression();
}
public JRExpression getHighExpression()
{
return ((JRHighLowDataset)parent).getHighExpression();
}
public JRExpression getLowExpression()
{
return ((JRHighLowDataset)parent).getLowExpression();
}
public JRExpression getOpenExpression()
{
return ((JRHighLowDataset)parent).getOpenExpression();
}
public JRExpression getCloseExpression()
{
return ((JRHighLowDataset)parent).getCloseExpression();
}
public JRExpression getVolumeExpression()
{
return ((JRHighLowDataset)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 date;
}
public Number getHigh()
{
return high;
}
public Number getLow()
{
return low;
}
public Number getOpen()
{
return open;
}
public Number getClose()
{
return close;
}
public Number getVolume()
{
return volume;
}
}
/**
*
*/
public byte getDatasetType() {
return JRChartDataset.HIGHLOW_DATASET;
}
/**
*
*/
public void collectExpressions(JRExpressionCollector collector)
{
collector.collect(this);
}
public JRHyperlink getItemHyperlink()
{
return ((JRHighLowDataset) parent).getItemHyperlink();
}
public boolean hasItemHyperlink()
{
return !JRHyperlinkHelper.isEmpty(getItemHyperlink());
}
public List getItemHyperlinks()
{
return itemHyperlinks;
}
public void validate(JRVerifier verifier)
{
verifier.verify(this);
}
}