reportbuilder/java/org/libreoffice/report/pentaho/styles/StyleMapper.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18 package org.libreoffice.report.pentaho.styles;
  19
  20 import java.util.HashMap;
  21 import java.util.Map;
  22
  23 import org.pentaho.reporting.libraries.resourceloader.Resource;
  24 import org.pentaho.reporting.libraries.resourceloader.ResourceException;
  25 import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
  26
  27
  28 /**
  29  * The style-mapper holds all information about the OpenOffice style mapping
  30  * mechanism. OpenOffice references styles by their name and context, a style
  31  * has a style-family assigned. The style family is determined by the element
  32  * referencing the style, and there is no easily accessible information
  33  * available on that.
  34  *
  35  * <p>Therefore this mapper acts as gatekeeper for this information. The style
  36  * mapping information is read from an external definition file and can be
  37  * maintained externally.</p>
  38  *
  39  * @since 11.03.2007
  40  */
  41 public class StyleMapper
  42 {
  43
  44     private final Map<StyleMapperKey,StyleMappingRule> backend;
  45
  46     public StyleMapper()
  47     {
  48         this.backend = new HashMap<StyleMapperKey,StyleMappingRule>();
  49     }
  50
  51     public void addMapping(final StyleMappingRule rule)
  52     {
  53         backend.put(rule.getKey(), rule);
  54     }
  55
  56     public boolean isListOfStyles(final String elementNamespace,
  57             final String elementTagName,
  58             final String attributeNamespace,
  59             final String attributeName)
  60     {
  61         final StyleMapperKey key = new StyleMapperKey(elementNamespace, elementTagName, attributeNamespace, attributeName);
  62         final StyleMappingRule rule = backend.get(key);
  63         return rule != null && rule.isListOfValues();
  64     }
  65
  66     public String getStyleFamilyFor(final String elementNamespace,
  67             final String elementTagName,
  68             final String attributeNamespace,
  69             final String attributeName)
  70     {
  71         final StyleMapperKey key = new StyleMapperKey(elementNamespace, elementTagName, attributeNamespace, attributeName);
  72         final StyleMappingRule rule = backend.get(key);
  73         if (rule == null)
  74         {
  75             return null;
  76         }
  77         return rule.getFamily();
  78     }
  79
  80     public static StyleMapper loadInstance(final ResourceManager resourceManager)
  81             throws ResourceException
  82     {
  83         final Resource resource = resourceManager.createDirectly("res://org/libreoffice/report/pentaho/styles/stylemapper.xml", StyleMapper.class);
  84         return (StyleMapper) resource.getResource();
  85     }
  86 }