Package com.sun.star.report.pentaho.styles

Source Code of com.sun.star.report.pentaho.styles.StyleMapper

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*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: StyleMapper.java,v $
* $Revision: 1.1.1.1 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
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package com.sun.star.report.pentaho.styles;

import java.util.HashMap;

import java.util.Map;
import org.jfree.resourceloader.Resource;
import org.jfree.resourceloader.ResourceException;
import org.jfree.resourceloader.ResourceManager;

/**
* The style-mapper holds all information about the OpenOffice style mapping
* mechanism. OpenOffice references styles by their name and context, a style
* has a style-family assigned. The style family is determined by the element
* referencing the style, and there is no easily accessible information
* available on that.
* <p/>
* Therefore this mapper acts as gatekeeper for this information. The style
* mapping information is read from an external definition file and can be
* maintained externally.
*
* @author Thomas Morgner
* @since 11.03.2007
*/
public class StyleMapper
{
  private final Map backend;

  public StyleMapper()
  {
    this.backend = new HashMap();
  }

  public void addMapping(final StyleMappingRule rule)
  {
    backend.put(rule.getKey(), rule);
  }

  public boolean isListOfStyles(final String elementNamespace,
                                final String elementTagName,
                                final String attributeNamespace,
                                final String attributeName)
  {
    final StyleMapperKey key = new StyleMapperKey
        (elementNamespace, elementTagName, attributeNamespace, attributeName);
    final StyleMappingRule rule = (StyleMappingRule) backend.get(key);
    if (rule == null)
    {
      return false;
    }
    return rule.isListOfValues();
  }

  public String getStyleFamilyFor(final String elementNamespace,
                                  final String elementTagName,
                                  final String attributeNamespace,
                                  final String attributeName)
  {
    final StyleMapperKey key = new StyleMapperKey
        (elementNamespace, elementTagName, attributeNamespace, attributeName);
    final StyleMappingRule rule = (StyleMappingRule) backend.get(key);
    if (rule == null)
    {
      return null;
    }
    return rule.getFamily();
  }

  public static StyleMapper loadInstance (final ResourceManager resourceManager)
      throws ResourceException
  {
    final Resource resource = resourceManager.createDirectly
        ("res://com/sun/star/report/pentaho/styles/stylemapper.xml", StyleMapper.class);
    return (StyleMapper) resource.getResource();
  }
}
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