mondriancell.java

OLAP 的客户端代码

/*
 * ====================================================================
 * This software is subject to the terms of the Common Public License
 * Agreement, available at the following URL:
 *   http://www.opensource.org/licenses/cpl.html .
 * Copyright (C) 2003-2004 TONBELLER AG.
 * All Rights Reserved.
 * You must accept the terms of that agreement to use this software.
 * ====================================================================
 *
 * 
 */
package com.tonbeller.jpivot.mondrian;

import org.apache.log4j.Logger;

import com.tonbeller.jpivot.olap.model.NumberFormat;
import com.tonbeller.jpivot.olap.model.impl.CellBase;
import com.tonbeller.jpivot.util.NumSeparators;

/**
 * Cell Inplementation for Mondrian
 */
public class MondrianCell extends CellBase {

  static Logger logger = Logger.getLogger(MondrianModel.class);

  private mondrian.olap.Cell monCell;
  private MondrianModel model;

  private boolean isGrouping = false;
  private boolean isPercent = false;
  private int fractionDigits = 0;

  /**
   * Constructor
   */
  protected MondrianCell(mondrian.olap.Cell monCell, MondrianModel model) {
    this.monCell = monCell;
    this.model = model;

    /*
     mondrian.olap.Member measure = monCell.getMeasure();
     Exp formatExp = (Exp) measure.getPropertyValue(mondrian.olap.Property.PROPERTY_FORMAT_EXP);
     String formatString = "Standard";
     if (formatExp != null && formatExp instanceof mondrian.olap.Literal) {
     Literal lit = (mondrian.olap.Literal) formatExp;
     if (lit.getType() == Category.String) {
     formatString = (String) lit.getValue();
     }
     }
     
     // Format is not very useful
     Format format = Format.get(formatString, model.getLocale());
     
     numberFormat = new NumberFormat() {
     public boolean isGrouping() {
     return isGrouping;
     }
     public int getFractionDigits() {
     return fractionDigits;
     }
     };
     */
  }

  /**
   * @see com.tonbeller.jpivot.olap.model.Cell#getValue()
   */
  public Object getValue() {
    return monCell.getValue();
  }

  /**
   * @see com.tonbeller.jpivot.olap.model.Cell#isNull()
   */
  public boolean isNull() {
    return monCell.isNull();
  }

  /* determine formatting properties
   * @see com.tonbeller.jpivot.olap.model.Cell#getFormat()
   */
  public NumberFormat getFormat() {
    if (monCell.isNull())
      return null;

    Object o = monCell.getValue();
    if (o instanceof Number) {
      // continue
    } else
      return null;

    isPercent = formattedValue.indexOf('%') >= 0;
    NumSeparators sep = NumSeparators.instance(model.getLocale());

    fractionDigits = 0;
    if (formattedValue.indexOf(sep.thouSep) >= 0)
      isGrouping = true;
    int i = formattedValue.indexOf(sep.decimalSep);
    if (i > 0) {
      while (++i < formattedValue.length() && Character.isDigit(formattedValue.charAt(i)))
        ++fractionDigits;
    }

    return new NumberFormat() {
      public boolean isGrouping() {
        return isGrouping;
      }

      public int getFractionDigits() {
        return fractionDigits;
      }

      public boolean isPercent() {
        return isPercent;
      }
    };

  }

  /**
   * @return
   */
  public mondrian.olap.Cell getMonCell() {
    return this.monCell;
  }
} // End MondrianCell