content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.ade.contenteditor;
  
  import org.opencms.file.CmsObject;
  import org.opencms.file.CmsProperty;
  import org.opencms.main.CmsException;
  import org.opencms.main.CmsLog;
  import org.opencms.util.CmsStringUtil;
  import org.opencms.xml.content.CmsXmlContent;
  import org.opencms.xml.types.I_CmsXmlContentValue;
  
  import java.util.Collection;
  import java.util.Locale;
  
  import org.apache.commons.logging.Log;
  
  /**
   * Handles editor content changes to read OpenCms resource properties and insert their values into the edited content.<p>
   */
  public class CmsEditorChangeHandlerProperty extends A_CmsXmlContentEditorChangeHandler {
  
      /** The logger instance. */
      protected static final Log LOG = CmsLog.getLog(CmsEditorChangeHandlerProperty.class);
  
      /** The property to read. */
      private String m_propertyName;
  
      /** The content field to manipulate. */
      private String m_targetField;
  
      /**
       * @see org.opencms.xml.content.I_CmsXmlContentEditorChangeHandler#handleChange(org.opencms.file.CmsObject, org.opencms.xml.content.CmsXmlContent, java.util.Locale, java.util.Collection)
       */
      public CmsXmlContent handleChange(
          CmsObject cms,
          CmsXmlContent content,
          Locale locale,
          Collection<String> changedPaths) {
  
          if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_propertyName)
              && CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_targetField)) {
              for (String path : changedPaths) {
                  I_CmsXmlContentValue value = content.getValue(path, locale);
                  if (value != null) {
                      String val = value.getStringValue(cms);
                      if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(val)) {
                          try {
                              CmsProperty prop = cms.readPropertyObject(val, m_propertyName, false, locale);
  
                              if (!prop.isNullProperty()) {
                                  String target = resolveRelativePath(path, m_targetField);
                                  if (content.hasValue(target, locale)) {
                                      content.getValue(target, locale).setStringValue(cms, prop.getValue());
                                  } else {
                                      content.addValue(cms, target, locale, 0).setStringValue(cms, prop.getValue());
                                  }
                              }
                          } catch (CmsException e) {
                              LOG.error(e.getLocalizedMessage(), e);
                          }
                      }
                  }
              }
          }
          return content;
      }
  
      /**
       * @see org.opencms.xml.content.I_CmsXmlContentEditorChangeHandler#setConfiguration(java.lang.String)
       */
      @Override
      public void setConfiguration(String configuration) {
  
          super.setConfiguration(configuration);
          String[] temp = m_configuration.split("\\|");
          if (temp.length == 2) {
              m_propertyName = temp[0];
              m_targetField = temp[1];
          }
      }
  }
  