Package org.pentaho.reporting.engine.classic.demo.ancient.demo.invoice

Source Code of org.pentaho.reporting.engine.classic.demo.ancient.demo.invoice.AdvertisingTableModel

/*
* 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) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.demo.ancient.demo.invoice;

import java.util.ArrayList;
import java.util.Date;
import javax.swing.table.AbstractTableModel;

import org.pentaho.reporting.engine.classic.demo.ancient.demo.invoice.model.Advertising;
import org.pentaho.reporting.engine.classic.demo.ancient.demo.invoice.model.Article;


public class AdvertisingTableModel extends AbstractTableModel
{
  private static final String[] COLUMN_NAMES =
      {
          "advertise",
          "customer.firstName", "customer.lastName", "customer.street",
          "customer.town", "customer.postalCode", "customer.country",
          "customer.salutation", "ad.date", "ad.number",
          "article.name", "article.number", "article.details",
          "article.price", "article.reducedPrice"
      };

  private static Class[] COLUMN_TYPES =
      {
          Advertising.class,
          String.class, String.class, String.class,
          String.class, String.class, String.class,
          String.class, Date.class, String.class,
          String.class, String.class, String.class,
          Float.class, Double.class
      };


  public AdvertisingTableModel()
  {
    advertisings = new ArrayList();
  }

  private transient Advertising[] adPerRow;
  private transient Article[] articlesPerRow;
  private transient double[] reducedPricePerRow;

  private ArrayList advertisings;
  private int totalSize;

  public void addAdvertising(final Advertising advertising)
  {
    advertisings.add(advertising);
    invalidateCaches();
    fireTableDataChanged();
  }

  public void removeAdvertising(final Advertising advertising)
  {
    advertisings.remove(advertising);
    invalidateCaches();
    fireTableDataChanged();
  }

  public Advertising getAdvertising(final int ad)
  {
    return (Advertising) advertisings.get(ad);
  }

  public void invalidateCaches()
  {
    int size = 0;
    for (int i = 0; i < advertisings.size(); i++)
    {
      final Advertising inv = getAdvertising(i);
      size += inv.getArticleCount();
    }
    this.totalSize = size;
    this.adPerRow = null;
    this.articlesPerRow = null;
    this.reducedPricePerRow = null;
  }

  /**
   * Returns the number of columns in the model. A <code>JTable</code> uses this method to determine how many columns it
   * should create and display by default.
   *
   * @return the number of columns in the model
   * @see #getRowCount
   */
  public int getColumnCount()
  {
    return COLUMN_NAMES.length;
  }

  /**
   * Returns the number of rows in the model. A <code>JTable</code> uses this method to determine how many rows it
   * should display.  This method should be quick, as it is called frequently during rendering.
   *
   * @return the number of rows in the model
   * @see #getColumnCount
   */
  public int getRowCount()
  {
    return totalSize;
  }

  /**
   * Returns a default name for the column using spreadsheet conventions: A, B, C, ... Z, AA, AB, etc.  If
   * <code>column</code> cannot be found, returns an empty string.
   *
   * @param column the column being queried
   * @return a string containing the default name of <code>column</code>
   */
  public String getColumnName(final int column)
  {
    return COLUMN_NAMES[column];
  }

  /**
   * Returns <code>Object.class</code> regardless of <code>columnIndex</code>.
   *
   * @param columnIndex the column being queried
   * @return the Object.class
   */
  public Class getColumnClass(final int columnIndex)
  {
    return COLUMN_TYPES[columnIndex];
  }

  private void fillCache()
  {
    if (adPerRow != null && articlesPerRow != null)
    {
      // nothing to do...
      return;
    }
    // ensure that we have enough space ...
    this.adPerRow = new Advertising[totalSize];
    this.articlesPerRow = new Article[totalSize];
    this.reducedPricePerRow = new double[totalSize];

    int currentRow = 0;
    final int invoiceSize = advertisings.size();
    for (int i = 0; i < invoiceSize; i++)
    {
      final Advertising inv = (Advertising) advertisings.get(i);
      final int articleCount = inv.getArticleCount();
      for (int ac = 0; ac < articleCount; ac++)
      {
        adPerRow[currentRow] = inv;
        articlesPerRow[currentRow] = inv.getArticle(ac);
        reducedPricePerRow[currentRow] = inv.getArticleReducedPrice(ac);
        currentRow += 1;
      }
    }
  }

  /**
   * Returns the value for the cell at <code>columnIndex</code> and <code>rowIndex</code>.
   *
   * @param  rowIndex  the row whose value is to be queried
   * @param  columnIndex the column whose value is to be queried
   * @return the value Object at the specified cell
   */
  public Object getValueAt(final int rowIndex, final int columnIndex)
  {
    // just make sure we can access the advertisings by the array
    fillCache();
    final Advertising inv = adPerRow[rowIndex];
    final Article art = articlesPerRow[rowIndex];

    switch (columnIndex)
    {
      case 0:
        return inv;
      case 1:
        return inv.getCustomer().getFirstName();
      case 2:
        return inv.getCustomer().getLastName();
      case 3:
        return inv.getCustomer().getStreet();
      case 4:
        return inv.getCustomer().getTown();
      case 5:
        return inv.getCustomer().getPostalCode();
      case 6:
        return inv.getCustomer().getCountry();
      case 7:
        return inv.getCustomer().getSalutation();
      case 8:
        return inv.getDate();
      case 9:
        return inv.getAdNumber();
      case 10:
        return art.getName();
      case 11:
        return art.getArticleNumber();
      case 12:
        return art.getArticleDetails();
      case 13:
        return new Float(art.getPrice());
      case 14:
        return new Double(reducedPricePerRow[rowIndex]);
    }
    throw new IndexOutOfBoundsException("ColumnIndex");
  }
}
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