Package org.pentaho.jfreereport.legacy

Source Code of org.pentaho.jfreereport.legacy.XYDataSetCollectorFunction

/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2008 - 2009 Pentaho Corporation, .  All rights reserved.
*/

package org.pentaho.jfreereport.legacy;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;

import org.pentaho.reporting.engine.classic.core.event.ReportEvent;
import org.pentaho.reporting.engine.classic.core.function.AbstractFunction;
import org.pentaho.reporting.engine.classic.core.function.FunctionUtilities;
import org.pentaho.reporting.engine.classic.core.function.Expression;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.data.xy.XYSeries;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
* @deprecated These functions are no longer supported.
*/
public class XYDataSetCollectorFunction extends AbstractFunction
{
  private static final Log LOG = LogFactory.getLog(XYDataSetCollectorFunction.class.getName());

  private ArrayList seriesNames;
  private String domainColumn;
  private XYSeriesCollection xyDataset;
  private String resetGroup;
  private HashMap series;


  public XYDataSetCollectorFunction()
  {
    this.seriesNames = new ArrayList();
    series = new HashMap();

    xyDataset = new XYSeriesCollection();
  }


  public void setSeriesName(final int index, final String field)
  {
    if (seriesNames.size() == index)
    {
      seriesNames.add(field);
    }
    else
    {
      seriesNames.set(index, field);
    }
  }

  public String getSeriesName(final int index)
  {
    return (String) seriesNames.get(index);
  }


  public int getSeriesNameCount()
  {
    return seriesNames.size();
  }


  public String[] getSeriesName()
  {
    return (String[]) seriesNames.toArray(new String[seriesNames.size()]);
  }


  public void setSeriesName(final String[] fields)
  {
    this.seriesNames.clear();
    this.seriesNames.addAll(Arrays.asList(fields));
  }


  public String getDomainColumn()
  {
    return domainColumn;
  }


  public void setDomainColumn(String domainColumn)
  {
    this.domainColumn = domainColumn;
  }


  public String getResetGroup()
  {
    return resetGroup;
  }


  public void setResetGroup(String resetGroup)
  {
    this.resetGroup = resetGroup;
  }


  public Object getValue()
  {
    return xyDataset;
  }


  public void groupStarted(ReportEvent event)
  {
    if (FunctionUtilities.isDefinedGroup(getResetGroup(), event))
    {
      // reset ...
      if (FunctionUtilities.isDefinedPrepareRunLevel(this, event))
      {
        if (LOG.isDebugEnabled())
        {
          LOG.debug("XYDataSetCollectorFunction.groupStarted ");//NON-NLS
        }
        XYSeriesCollection xyDataset = new XYSeriesCollection();
        for (int i = 0; i < getSeriesName().length; i++)
        {
          String s = getSeriesName()[i];
          XYSeries series = new XYSeries(s, true, true);
          xyDataset.addSeries(series);
          this.series.put(s, series);

        }
        this.xyDataset = xyDataset;
        //results.add(categoryDataset);
      }
      else
      {
        if (FunctionUtilities.isLayoutLevel(event))
        {
          // Activate the current group, which was filled in the prepare run.
          //currentIndex += 1;
          //categoryDataset = results.get(currentIndex);
        }
      }
    }
    else
    {
      // reset ...
      if (FunctionUtilities.isDefinedPrepareRunLevel(this, event))
      {
        if (LOG.isDebugEnabled())
        {
          LOG.debug("XYDataSetCollectorFunction.groupStarted ");//NON-NLS
        }
        XYSeriesCollection xyDataset = new XYSeriesCollection();
        for (int i = 0; i < getSeriesName().length; i++)
        {
          String s = getSeriesName()[i];
          XYSeries series = new XYSeries(s, true, true);
          xyDataset.addSeries(series);
          this.series.put(s, series);
        }
        this.xyDataset = xyDataset;
        //results.add(categoryDataset);
      }
    }
  }


  public void itemsAdvanced(final ReportEvent event)
  {
    if (FunctionUtilities.isDefinedPrepareRunLevel(this, event))
    {
      final Object domainValue = getDataRow().get(getDomainColumn());
      if (domainValue == null)
      {
        return;
      }
      if (!(domainValue instanceof Number))
      {
        return;
      }

      final Number x = (Number) domainValue;
      for (int i = 0; i < seriesNames.size(); i++)
      {
        String sn = (String) seriesNames.get(i);
        final Object o = getDataRow().get(sn);
        if (o instanceof Number)
        {
          Number y = (Number) o;
          final XYSeries o1 = (XYSeries) series.get(sn);
          o1.add(x, y);
        }
      }
    }

  }


  public Expression getInstance()
  {
    final XYDataSetCollectorFunction fn = (XYDataSetCollectorFunction) super.getInstance();
    fn.xyDataset = null;
    fn.series = new HashMap();
    return fn;
  }

}
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